NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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C- 0o5Ii en -e5~-30. ajeaarIat[I o:3Ia S[A s:SK CI wo CD tg 10 000 entetetetetefl~010101o te3333Cinte3C0i C3teb4C3Jinte 3C3Oin CaC in3teA3 C Cl3C3inCOCl4J3 flJ3W O3C3C33COW 3e-JinJ3 ej.j.ateaja akreaaok&n betete3-afr- tetete.Jte3O-.J-Jinteain C Ctete3ate.JCteJ3 01 ate ate in tee teteteatein inca ate in 0S oaeeoteterateeeaineineteteeaeaineaCeininintnino0 o 0 P 01 cnin 0303O~C5in00-A~ tfrns n rim nSt-8oJn S n03 b 000 0 S o. o 00003in0inrV agte 8 0at03 * inin, sont. ,e400 ~ 000 0raiEo g OuOi0 oaE0 5oc n~-Z 8 0o o030 L VoteaVoor E88 0e4 SeS2 anoo E%Pr %P Soro
Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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Edition: Model Aviation - 1987/06
Page Numbers: 98, 99, 100, 101, 102, 103, 104, 105, 181, 182, 183, 184, 185, 186, 188
NO OCR TEXT NO OCR TEXT model stalled dropped wing tip lot models would spin spiral Np usually sets its wings level itself having jump controls choppy breeze model rocks settles Give steady wind though watch relax Pup will appear mounted sky tethered kite test wing-leveling feature re duced power point model would fly could loop full up elevator elevator stick held full up rubberband transmitter set stand flight rollercoaster event repeated stalls fall offs followed immediate leveling wings Most copied test found models spin spiral Flights Left optional release rack works kinds fun projects Half roll streamer can provide nice targetto chase Its harderto cut streamerthan think Right release rack can used parachute drops well Watch out size weight too big object makes turbulence tail section wobblytakeoffs Tuck chutes carefully come out airstream can really slow down Make chutes just large enough slow bears descent Otherwise may drift unrecoverable distances Two bearsare twice fun Ourauthoradded cableto existing wing release bear direction servo throw Release system ultra-simple workseverytime Pull pin release rubberband get ready chase bears kids love a J.w id easy access gear Borrowinun idea camera people radio gear set foam cutouts An ad ditional sheetof foam sitsonthetopforextra protection removed photo 100 Model Aviation triangle pattern lights Pups gentle nature maae nignt tHying easy author Viewed front lights show alignment triangle side two vertical markers bottom two horizontal markers flashing tail light gives direction Night flying requires remote flying site carefully-controlled conditions center gravity CG farther back less successfiil self-leveling important balance model ward CG location shown plans Bill Winter took note Sugar Pup column saw stability put test just few feet ground showing him could touchand-goes still keep model within runway area pulled up too sharply stalled Adding throttle slowly giving minimal rudder commands Iwas able fly Pup out wobbly position onto next landing Bill noted wasnt supposed get away occasions have Pup has bad side effect makes cocky quick try lot things dare ground come up get Touch-andgoes low stall turns end runway T&Gs within half runway length touching wheels just foot Left At point entire frame ii hardwood Lite Piy tough structure adds little extra weight abiiity shrug off cartwheei makes worthwhile Right Using nylon boits hold landing gear heips protect modei boits will give way hard ianding Instead ripping out mounting plate much easier remove broken studs repiace piate end runway controlling toesall seem within per formers reach found Sugar Pup gave performance rudder/elevator model model have flown date However weight model increased Sugar Pup acquires typical performance profile no ticed loaded two extra battery packs aboard night flying Sugar Pup helped through flight abrupt stalls landed faster Flying nothing guide few lights incidentally adds real excitement triangular pattern lights used dif ferent usual wing tips tail locations new pattern much easier interpret position model safety night flights flown well away populated areas intended Sugar Pup sport model found flew reduced throttle insisted good trainer Due requirement cutting foam wing though model should attempted June1987 101 ltdoeant iooicanything iike 747 Sugar Pup Stiii maKes great iauncn paa Torthe Styrofoam apace shuttle avaiiabie toy stores Trim shuttle gentie turn reiease rack heid iast two wing rubberbands Simpie servoactuated pin releases smaii rubberbands secure whatever carried aboard aititude Left Trailing edge spars stab fin offset can run full length maximum strength Severai authOrs Pups quads including tall wheel along trike gearfor slow nose-high landings takeoffs Right exposed engine isa cinch get side mounting makes better fuel flow short exhaust extension muffler location keep model cleaner no signs damage However recoin mend 15 20 engine easy-tohandle lightweight model novice builder aid someone experience instruc tions intended have least completed few factory kits satis factorily wish move first foam-cutting project admit con stant-chord wing would much easier wouldnt make Sugar Pup will provide full details cut wings have attempted cover methods available resident expert may offer different procedures tools listed Youre welcome make well-thoughtout changes design please note foam wing design intended weight power specified overload overpower beyond sug gested range may break wing flight Test models using 25 weighing 3 lb have endured abrupt acrobatics Foam-cutting techniques cut out wing hot wire method will Left This H-shaped cutting bow easy assembie hardware store Items variable transformer came electron ics supply house DC power pack can also used areseveral commercial bows available wood block trans former keep output below levels will break wire Above Formica templates double-back-taped foam blocks Alignment marks templates must match Incidence marks blocks Numbered lines keep operators instep modei snappy takeoffs out-of-sight vertical performance Author warns against engine stronger Schnuerle 25 102 Model Aviation recommended flying style Pup easyto flythat ourauthorwanted totry toes othertrafflc cleared field did seven touch-and-goes proved present flight-by-foot wasnt just luck stable predictable model GLIDE LRAE /HORART MIMI-POINT IWISE AFER SJRFACE EPOXY TRIBAGLE L E TO FOAM WITH lOP EDUE MINMILMI OR 2-BLEYT POINTS MAKE DISANO FOAM WITH #400WET OR SHY SPAR CUTLOUT SIJIDEFOAM WING ISSi SHEETED OR BASS WOOS DH4EDRAL -RARE EACH liP I-3R IS-I/ST TOTAl USE RO-56 PER SPAR B TE DOWELCUT TIP 10 50 USE EPOXY PORLE TE EWERCESSWILL IHJRN NOTE ONS ARE NOT NEEDED FOR PYLON TUBAS OH GOOD ROLL CONTROL 00 __ BUT IF INSTALLED DO NOT DRILL OR CUT SPAR OR YE WITHIN 14 FROM3/16 BAlSA078 OR 11WINS CENTER SPAR FAILURE COULD OCCURD/32 PIANO WiRE FABAC TAPE /8 DOWEL- REINFORCEMENT FOR T _I THINjA W W-L7CUT FLUSH WITH FOAM TE 011~If4 SO PINE TE ION BASS WOOS-SFIAPE YE BEFORE GLUING 10 FOAM WA 3/6 03/B3/16S l/D POlE3116 BALSA O BALSAICR BASS T SHEET 9MAKE TWOI/BD 114 ADS 13BALSA DOUBLEPO RIDIHEDRAL BRACESI/B PLYr f MANE ONE F-IF-3F-I 10 F-I I/B PLYWOOD5A6OBALSA 3 FOAM F-B TOP-B /8 LITE-PLYF-B S10 10 DO ENORIE LIMIT 10254 IA IlTAIL ASSEMBLY WITH FINS PINE SPAR GLDOND ATTACH STAB ATOP DECK B PLY. IONS ATTACH FIN -n Co OJTTING ROWSHEET.U TYPE HI/4U3/IK BALSA lB GIL WIRE TOURSHORTEN FiREWALL -ASSEMBLE PIN SEPARATE AD POWERFOR TAILORASGER 1/16 PIANO WIREALUM MYS -SMALL 0 1/A BASS BALSA SHEETUSE TALWHEEL B BRAOET OR SEDI S EXTRA 1WIIGE HERECo 0 ________0 HARORARE HINDE15G NS-WOIIIA 0110 3/4 WASIIERS I/4-DO BOLTRORART MINI-POINTIJNFiI fledEAOnby LIIPII HrU fIB NIOBROME WIRE 151GB SA-ISSICUT STRUT ADOfGLEFT PIN FONT * MAKE CENTER BAR BE END BARS 145/35 AS ASILD-I/4 -TSCO JOBI TWO 3/3D STICKS NOTCHEDWINS SPAN 4W0 POWER USED STACOSOI AD TRANS IUMIT OUTPUT TO 403116TH FILE FOR FLAT HINGEENIIBIE 1010 DO OR USE 24 VOLT UNIT lAD OIITFUTI. 0 Left author counts off numbered lines hotwire passesthrough thefoam wife Dawn concentrates staying instep Cut foam outdoors excellent ventilation fumes melting foam health hazard Right Dawn fans out finish cut sections cut cores require light sanding before Ironing low-temp covering Sheet foam strength Left Before templates removed LE TE points marked foam Using 900 sticks cutting guide trim excess foam wing core Blocks wood secure core during step Right spar points marked foam spar guides aligned attached No numbering required just three quick strokes operator can feel wire reaches corner guide Left Tapered wing tips easy Just use 300 guide sticks set thewing straight keepthe cutting wire level board cut through foam Keep wing level either wooden blocks foam under TE shown set wing cradle cut Above joining wing center section wooden blocks hold both tips parallel Wax peper below seam protects both furniture andfamily relationafrom damage need buy make several tools such bow cutting board assemble type-H foam cutting bow cut 42-in two 14-in pieces 1in-sq pine 42-in length allows use bow larger wings Taper end Slots cut dihedral braces spar TE spar glued pliable white glue such Grrrlp Bond availabiefrom craft stores rubberywbite glue works best between soft foam hardwood Rigid glue tends fracture foam beads wing flexes flight 42-in piece about 200 Position pieces H pattern shown plans Brace 900 joint metal brackets join beveled end hinge Drill holes end short strip 4-20 bolts insert bolt andtwo washers Smooth edges washers prevent cutting nichrome wire Install two eyelets opposite ends short strips Make up two 16-in music wire leads String spring wire leads between eyelets Strip h-in insulation off low-voltage wires tin solder Place 104 Model Aviation wire ends between washers wood staple wire position Use addi tional staples dress wire end bow Place nichrome wire between washers end tighten up bolt nichrome cutting wire can ordered Sig Mfg available locally Place end bow floor press other end until bow square spring stretched least 3 Com press bow about 1-in further nichrome wire end slightly shorter spring side secure loose end nichrome wire between remaining set washers low-voltage wire should under washers nichrome wire between two washers Tension cutting wire should cause wire sound like guitar Add #64 rubberbands until sounds note close middle C current applied cutting wire will stretch lower pitch sure spring still stretched holding pressure cutting wire after apply voltage Attach AC power cord lowvoltage leads bow trans former marked manufacturers instruction sheet use Staco #201 2amp variable-output transformer Place transformer large utility box will enough air prevent overheating Position knob match 0 100 dial through full throw Because danger getting full voltage snapping cutting wire should install stop block 40% dial limit voltage maximum setting will need voltage could shock hazard used around wet area metal surface such washing machine etc could purchase ready-to-use 24volt pack about $50or look use battery power safer can also experiment batterypowered cutting bows advertised modeling magazines range cost $30 $100 have worked myself cannot comment themContinued page 181 June 1987 105 long short 6-ft wing tried recommended iarge wing makes put turn request wait around someone sign before takes firewali made two iaminated 1/s-in pywood sheets survive 11 hoies drilied Nose gear steering arm can stailed inside shown plans outside below fuselage easy service stab sits 1/2 in front fin spar ciear wire connector between elevator halves hardwood fin spar runs inside fuselage additional strength wing saddles capped 1/32 ply strips reduce creasing soft foam wing Lots space radio mini equipment makes best performance long compartment itseasytocome outtail heavy mount ali gear well forward correct CG RIGHT! LATHATS MAXI 30 CHEAP Operate Using 50/s OOZE OIL 950/0 Methanol will give average fuel economy ounce per minute still have power turn 24 x 8 prop over 5700 RPMs SEE ONE AT YOUR LOCAL HOBBY SHOP CaU Parts PeoPAL z4 c P 0 Box 26247 New Orleans LA 70186 42-5967 happening around town Spreading word through vehicles visibly increases number spectators come watch contest event makes few people aware club hobby Special event flyers traditional con test information sheet distributed club sponsoring contest written AMA rule book language benefit contestants also produce sep arate announcement written laymans terms invite spectators come watch contest participate seminar include name phone number club member contact additional formation announcements placed bulletin boards high-traffic areas such shopping malls public li braries hobby shop windows etc Display window exhibits obtained permission put Control Line model exhibit information placards local shopping malls unused display case display place two weeks promote upcoming contest exhibit attracted much atten tionit display far longer could have sustained manned mall show mall merchants demanded allowed use previously unwanted display case Doing window exhibit gave us exposure such numbers people eager anotherbut still waiting display case become available again Entry-level Control Line events stant modeler masters first Control Line trainer joins ranks sport flier point participating contest other club members seems far beyond grasp bridge gap Norfolk Aeromodelers include entrylevel event contest effective event must anyone can fly using simple off-theshelf items popular entry-level event Profile Sport Scale rules appeared April 1984 Model Aviation page 73 Anyone can fly profile replica full-scale aircraft 10 laps can compete profile Control Line kits pat terned after full-scale prototype Some like Sig Shoestring Sterlings ginner Series make good Control Line trainers permitting someones first model also entered first contest Fea turing entry-level event contest gives new flier something look ward maintaining interest en thusiasm bridges gap between sport contest flying builds confidence summarize efforts produced results aimed Club membership continues grow number active fliers has doubled father-and-son fly ing team first flew club trainer two years ago now among ag gressive Combat fliers Some people built first model recreation center now regulars join us Sunday local hobby shop has Control Line merchandise store owner quick point out new Control Line kits just went onto shelf doesnt mean promotion efforts have stopped realize thing put action got us now want keep way Promoting sport evolutionary process always refinement needs addedlike car pool get Junior modelers club field thats problemno challengethe Norfolk Aeromodelers will gladly deal responding advertisers mention read about ModelAviation SAFE FLYING IS NO ACCIDENT losing energy represented considerable length Seven-inch SleekStreak propellers cut down di ameter 6 prototype Only two-bladed props have used thus far fly model flying three-bladed props will add realism fully-wound motors temporarily held place placing 810-in length 1/32 piano wire vertically through nacelle pass through wire hook prop assembly hook bent lower end pin pins themselves can attached through hookeyes imbedded appropriate spacings piece 1 x 2-in pine strip motors wound pine strip pulled down vertically plane simultaneously removing pins prop assemblies action per mits motors unwind model launchedhorizontally firmlyinto prevailing breeze its best model aviation captures beauty excitement manmade flight fragile replica spark historys great aircraft rekindled Sugar Pu p/H ux Continued page 105 Cutting board aid cutting foam blocks special angle cuts will need cutting board board made 3-ft-sq sheet -in plywood sheet must flat true Using triangle ensure accuracy attach 12-in polished hardwood strips end 900 board 3 edge Use 1-in blocks under board gusset strips Also attach two wood strips 300 cutting tip angles Draw line June 1987 181 &U II £HEAP!CH EAP Lancaster/Norman Continued page 97 Model Magic Epoxy Plus 0 Model Magic Filler 0 2 Part 8 Mm Use anywhere two part epoxy used 25% Lighter Sandable Carveable Excellent Gap Filling Non-Sagging Superior Strength$095 Sands Carves like Basswood! 6 fI ozl Equal over 8 wt oz regular epoxys See dealer first write call IAR PO Box 19784 StPauI MN 551190 1715 425-13970 MODEL MAGIC PRODUCTS 0 Comparison Chart care enough fill very best insist Model Magic Filler Circus Magic Filler 0 Adhesion BalsaExcellent Foam Fiberglass Strength Fleeing Spreading Fuel Resistance Good Sanding As med balsa Hardness As hard balsa Finishing Any finishlcovering Shelf Life till used up tint Acceptance Excellent Water Resist Excellent ve Poor Soft balsa Soft balsa 57 mx ve Poor Test methods data available request marker pen front edge guide other line should show cutting wire will cut moved down vertical strips add series 90 lines 6 aid squaring block foam board Wing templates Begin rough-cutting two Formica plastic laminated strips large enough two wing rib templates Join pieces smooth side out strips double-back tape Cut out paper tem plate patterns leaving excess edge about lin spray backs light coat contact adhesive Allow dry completely Press onto Formica strip cut out patterns narrow-blade jigsaw Leave drawn outline rib cutting sand disk sander until rib very smooth 0 line nearly gone finished surface must free ruts nicks will catch nichrome wire Remove paper template carefully store wax paper Separate identical rib copies should have four templates two mirror copies root tip Align paper templates set matching rib templates straightedge parallel other work table Raise straightedge enough can slide triangle along edge over surface rib templates Use triangle against straightedge line up leading edges template paper pattern Align triangle first line paper master Using permanent marking pen draw same line both copies Formica templates Repeat mark number lines 182 Model Aviation Model Magic Product X $595 Sf1 oz Fillets Filling Repair SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOC$ CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPJERS FOR BENT OR KNOB TYPE NEEDLES FOR19-IOS ENGINES PRICE $1200 SaD MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECKORMO DES PLAINESIL60016 I1C IN SPIllhI11 CRN STILL SEE T SRI NNEI BUT YP PETTEPS HUVY /611 CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture f carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable St raps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies CHIPL 84 match paper master Note numbers start trailing edgewhere cutting begins Repeat process remaining templates Produce mark two spar cutout guides same manner used produce rib templates Purchase 2- 3-in-thick foam blocks hobby shop mail order house such Sig Alternatively check home insulation contractor expanded bead foam Select safe area set up cutting board prefer work outside because poisonous gas released foam cut work area should dry well ventilated tables surface should nonconducting material such wood Formica output power supply similar AC output large train transformer safe used proper pre cautions dangerous youre careless Use scrap foam get feel cutting speed temperature Foam cut ting skill must practiced perfect prevent foam slip ping during cutting place weight top foam scrap plywood works well dial transformer 25 through 30 position dial 24- 36-in cuts Make few test cuts allowing wire sink through foam Proper cutting requires balance tween three items wires temperature its tension speed attempt cut will have develop feel what actually correct following will help get ballpark wire should cut roughly mark per second should call out num bers template about rate would call out seconds clock thousand half thousand two thousand half thousand three. wire drags makes go noticeably slower increase temperature small amount Note wire does glow red remains same color heats can tell hot noting bow changes shape wire stretches wire too hot will melt large gap move over template will no drag should reduce voltage little feel getting right balance surface foam looks smooth check tension Using tem plate 900 angle begin test cut Look corners cut see middle area sharp two end cuts rounding middle wire too loose Add #64 rubberbands stronger spring both sure spring still stretched after have applied voltage exiting cut wing should see wire exit nearly same time along entire length foam Note excess speed can create same effect having tension too loose Developing balance good cut comes experience see deep lines along span cut can mean U-E aI uuu Top Flite Jacket Look best flight line Top Elite RIO Pilots Jacket pay $15000 $400 savings off regular price ad copy must accompany order S M L XL mbia Light Bluesafety sleeves polyester 35% combed cotton easy care scre ed logo back lor embroidered patch front Top Elite Jacket . Wear proudly order send ad return address quantity $1500* per jacket no cash please Top Elite Jacket orders $250 shipping/handling Illinois residents add 60/0 sales tax TOP FLITE MODELS INC 2635 South Wabash Avenue Chicago Illinois 60616 foam cutting generally two-person job hesitating mov ing consistent speedor wire could too hot Cut stock foam wing blanks Mark block 24-in lengths position boards cutting mark Check see edge against 900 guidelines square cut Heat wire start cutting Mark end blank length short template other end length long template Position marks match cut line board make cut blank will now have wings shape swept leading edge 90 corners trailing edge Draw guideline 1 bottom edge chord end blank leading edge trailing edge align position templates lines must parallel other correctly po sition incidence template Ap ply several coats double-back tape templates position shown drawings can also use spray adhesive pin place small nails pushed through holes drilled templates Note base tip template matches guideline root template will match guide line drawn through templates part rib sets below line foam Templates must pressed firmly place Cuts should always start trailing edge move leading edge flatter surface rear wing tolerant have act together start cut front wing rounded usually reveals errors alignment between two work ers cutting progress caller reads out loud numbers root template passes As wire passes marks between num bers caller says half onesyllable cue further defines position requiring numbered marking helper should follow lead caller attempt number tip template number being called Speeding up slowing down get cadence caller must done proportionally wire never moved too slow too fast Being off number will hurt near trailing edge should get rhythm time approach leading edge Please agree start same side template top bottom results will useless Since find easier make cut wire resting top template always turn foam cut will top Due shorter chord wing tip wire will move slower make larger-diameter cut template has adjusted Set voltage transformer position wire nd above entry point TE caller announces June1987183 J-3 KITTEN ULTRALIGHT I Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 ready helper agrees start Enter foam drop down template surface caller nounces hail mark lead-in part template As zero position called both should have wire settled template matching others speed Note lead-in part foam cut off errors lumps important may extend length lead-ins about half-inch beyond edge foam make ramps helps start-up resting wire template before starting foam remember keep TE template same distance edge foam Also remember position templates produce left right wings thick foamhard findyou can cut both wings piece shown photos Cut several extras have things set up accurately trim lead-in leadout scrap wing make short marks edge foam zero 10 marks before removing templates Also make s marks location spar cut remove templates cradle wing bottom foam scrap block Place cutting board align marks foam cut line board set cold cutting wire against cutting guides confirm wire will cut marks wire properly aligned bring up heat cut Repeat opposite edge cold wire perfect cut position go back hot cutting Apply double-back tape spar cut out guide Position end wing using guide lines square templates tip guide aligns line base airfoil root guide also sets -in line bottom airfoil uses guide line already foam level guide prevent twist slot Set cutting wire near foam inside guides Bring up heat make three distinct cutting motions down over out Keep wire parallel wing surface prevent distortions cut other words dont exit end wing long before exit other end Next cut dihedral root blocking up tip 1 Keep wing bottom foam cradle Position wing wire cold wire will cut minimum amount off root section Check see wing square board matching TE boards guidelines Make cut keeping wire parallel board cut tip angles place wing bottom-side-up top foam scrap will keep incidence wing square board Again position foam cut minimum off span Using cold wire angled guides check see wire will exit foam Keep wire parallel board make cut wire should exit right top edge airfoil tip set up cut exit down scrap foam cradle Use razor blade trim 2 x -inwide slots spar braces Also cut another brace slot TE Lightly sand foam unfolded piece 400 600 wet-or-dry sandpaper polish surface careful let edges sandpaper dig surface completed foam panels hand can begln assembly wing Cut ends n pine basswood spars match angle wing tips cut length Glue place responding advertisers mention read about ModelAviation 184 Model Aviation Flying Near Airports Careful Free Flight Radio Control flying near airports situation might involve possibility models being vicinity fullscale aircraft operations must avoidedor conducted eliminate dangerous situations Models should flown proximity full-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircraft supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY -----Co 0 trt1 make mi1 plane5 itnmaculate becau5e ever qLhing else mq life q GRATE-SHAPESTM SANDING BLOCKS Long ast ng S con carbide grit sides 10 Long GS 101GS 102GS 103 1/4&3/81f2&5I83/4&1 Combo package #1-GS 101 102 103Combo package #2-GS 104 105 106 $1195 S&HSAVE Six Pack Combo GSs above $2195 S&H$1195 S&H Single GS $495 S&H AZ RESIDENTS ADD 5% TAX products guaranteed ers invited Ask hobby dealer first SEND CHECK ORMASTER CHARGE MONEY ORDER TOOR VISA ACCEPTED Bell Rock Industries6486 Ffwy 179-Suite l8 Sedan AZ 86336602 284-1806 Mr $795 S&H 91/2 long$495 S&H GS 104OS 105GS 106 3/8 & 5/8 900 Vs w15/8 450 & 900 GRATE-SHAPES-ru SQUARES 05 300 PKG using pliable white glue such RIC-56 Grrrip reinforce trailing edge against compression rubberbands imbed -in dowel foam cut flush TE shown plans Make hole foam TE hot pushrod wired Use same process wing tips LE Taper top edge -in-square pine basswood trailing edge before gluing foam epoxy Sand hardwood before attaching foam balsa Glue -in balsa triangle leading edge foam 1A6-in edge pro truding above top foams LE Trim excess wood flush foam surface sand shape prevent accidentally cutting foam use point light source across room cast shadow foam trim sand LE light must LE side wing balsa matches foam will no shadow centerline triangle LE should center root rib fall well below center tip rib ensures LE will have proper change shape match change airfoil Cut dihedral braces test-fit slots Cut slot LE wedge-shaped brace Prepare level sur face joining wings placing waxed paper center 1-in block tip Make blocks about 6 long GOTTR PDtIIT 5PINNEK Y KNOW HOW TO TURN P BPD SITUFITION TO YOUR RDVRNTPGE DONT QVECWK MINI Cl4PL 84 Remember Dealers & Distributors Welcomed Phone 703 273-9593 FLYLINE MODELS INC P 0 Boo 2136 Fanfas Vtrginlo 22031 USA June1987 185 GRATE-SHAPESTM ROUNDS 05 200 PKG 9/2long n EflLLY Classic ft/C Scale TIlE SGRAT LAK 40 Wing 15 25 Engines ENGINE ADJUSTMENTScNO4 transmitter impounded DIRECT DAl VE CABLE electron icY e ess installed aircraft tween receiver throttle servo rio third connector mounts side fuselage mod eler may plug SERVO DRIVER operate throttle Price $2250 SEftVO DRIVER allowsyou todirectly control servowithout useof radio Great forinstalling radioforthefirat time making engine adiustments flying field Powered 4 alkaline N cell batteries mci Price $2550 NICAD KIT optional servo driver includes 4 N cell Nicad batteries charger Price $1950 CUSTOM ELECTRONICS PO Box 1332 e Alta Loins CA 91701 Free shipping with ad California residents add 6% sales tax State type radio connectors desired Redundant Radio System Servo End PoInt Adjuet Send tree brochure Servo Driver right Direct Drive Cable tip will held parallel work table Sight across blocks ensure both tips parallel Minor alignment errors root far less important alignment error tips Apply 30minute epoxy dihedral braces root section foam jig place dry Position weight such book top wing tip hold tips flush dihedral blocks can install TE brace after epoxy sets Apply thin fabric tape R/C-56 around root joint use heavygauge tape will leave ridge covering Cover foam wing low-tem perature film labeled suitable foamsuch Coverites Black Baron Film Solarfilm Hobby Lobby Super kote tex type coverings can also used will require sealing coat paint tail surfaces must completed before finishing fuselage Build up stab plans differences typical tall surface assembly hard wood spar TE spar brace LE Sand ends hardwood rounded shape before assembly dif ficult sand balsa hardwood equally joined together plans suggest two easy ways install hinges hardwood use several Robart Mini-Points per surface Klett also makes strong point hinge uses wire hinge pin fairly easy mount basswood balsa elevator slotted usual tied together 076-dia wire fin also built-up plans does include pine spar stage fm attached spar after spar assembled fuselage Attaching fin spar runs down inside fuselage assembly instead merely mounting stab surface strengthens considerably Fuselage Begin producing parts illustrated plans suggest making identical fuselage sides joining two pieces rough-cut -in Lite Ply double-back tape cutting both sheets cut Use warp curve Lite Ply advantage laminating rough-cut pieces curved opposing directions will finished pieces assembled careful using instant copies cutting tem plates machines set reduce about 1 2% using lightweight engine may wish extend nose about tain balance adding nose weight Also use nose gear can reduce firewalls height about r sides match Mark bulkhead servo rail po sitions wood before separating Note piece will right sidewith bulkhead markings inside Trim firewall edge Vie thrust offset Position sides upright over waxpaper-covered plans Glue F-3 F-4 place Install -in wing dowels wing saddle doublers will help brace up frame before joining ends Po sition fins pine spar place two balsa wedges Wrap rubberbands hold epoxy-glued joint measured front sides spar should 900 surface plans Glue F-7 place tail wheel skid mount Position F-5 F-6 glue place Laminate F-2 centered F-i make firewall Mark drill aluminum engine mounts prefer drill holes bolts locknuts rather tap aluminum mount Bolt engine mounts Position mounts firewall determine can install engine shown still have muffler clear side bottom fuselage mount engine upright places carb too far above tank centerline directs exhaust spray wing saddle can rotate engine few degrees get close centerline high up possible Mark drill engine mount blind nuts Mark drill holes nose gear block Note engine mounts positioned try locate blind nuts nose gear under Mark drill holes fuel lines throttle cable easier now Continued page 188 THE JOURNAL OFtIE JOURNAL THE AIRPLANE 1920 1940TIlE EARLY AEROPLANE Leo Opdycke EditorKenn Rust Editor WW1 AERO 1900 1919 SKYWAYS 19201940 two Journals contain information current projects historical research news ot museums airshows workshop notes technical drawings data information paint color photographs aeroplanes engines parts sale scale modelling material PLUS wants disposals news ot current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 2et#o/2na6 INC 15 Crescent Road Poitqhfsecpsie NY 12601 USA 914 473-3679 186 Model Aviation HIGH PERFORMANCE FLAP E rn 0 Get airborne FASTER & SAFER Z _C, Super Strong & Lightweight Slow tast hot planes docile landing speed sacrificing pertormance Use electric sailplanesactivates throtile on/off switch servo Fully adjustable fit airfoil easy installation Readybuilt comes complete instructions Patent Pending Send FREE Brochure Dealer Inquiries Invited &eeit4ie 9Rai4 C6t%/ Box 1962 Lawrence KS 66044 Full-size Plan List available complete listing plans previously published magazine through No537 may obtained free charge writing enclose stamped pre-addressed envelope Model Aviation 18 10 Samuel Morse Dr Reston VA 22090 fl CC Z -C m m -I a5 b Clear z2"2627]0 -tC SCD TICiCrCnCA -4 II -CnCaN00303CO -J 03 Ca 003 Ca 03050 cC Ci P Ca N0 03CA - N3 CD Ci Cii C 0 Si SI Cii Cr a N N 0 -J CA 03 D 0 03 0 03 N CrWCiW-Ca o c Ci a N .J 03 03 0N 03 0 N fl m CrCSIWCTI*W.Ca Ci -J CD- N Ca 0 a C 0 N Ca a p EK C gi ci Cii Ci Ci Ci Cal p Ca Ci N i N .j CD i Ci 0 C ~ 30 CAN-OCiCA 0 2 -@nO 57 0 P uaaanzuazzazazzzrazazauanaaamauzSZZZZUEZfla11111 111112 2 22 COCOC SCCSCSCCC oCCOCO c.cppppSSCCSSSCSSSCSS 0 aa tennis aa ag tta P aealJ-CCSttteaceniwaeaeassmUnirca 6*eaCDmiWC CI010101 1 01 01 1WW enjr1LFna t 1 .1 01 01 -3 a-wrr3 Wa - jean3c@rSIr rta-agTrrmt -S r utU3 S ni-- -a-t5;m3-iu%v-ga-q ee r 3 ra t nr[- w iiwtn o~5 a-c3 se ina-a n CD eas E5 ~ cnE8 0 w C 5 ;g1nfl5CW .~cnS a- E naFK39" cam C n21 3 co3 3a ~ ~-r2 c 1XWIVt Cen0 cocA 0.01 5r5- 55en- ginj C 3n 0 0• ax cngint U rCC~Ciift#0tg gteccnine5g ~ in-a-~vX-5S ~ija alainoa-.. ens-i -n o 3 r-e t~rwC-i4.a1Laa-7eaaora-nga-a-ninCCC0alnin sate 1s a-innv -in-O _ in~0 Sencx winxCgxRXa-tgea1—w1ton w etSia. 0xrgac4Cr CC --a a-1caW SC a-C5 CDa&3Oe4CD rinaC3_5inat a-c a-a0g ma-----H0300 -g uvta-rt0lsalriiiit4[iI Sa- IC Cat501CC a-~nag jTrcaN Iaw~toSsoa-~C aW0 etcg 0 wWoO35 _a-Jgfjavt oia--gg a-Ca _- sro 0 g o ate -oa-asa-ia-xva3 o H a--t. 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