NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145
Edition: Model Aviation - 1986/12
Page Numbers: 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 141, 144, 145
NO OCR TEXT NO OCR TEXT N Join plans center section Space Os aileron servo fits snug -in rails end Prepare po sition front rear plates shown Goldberg strip aileron hinge set wire Du-Bro 4-40 rod make U 3A2 collar slipped U axis floats flaps move Z hinges will detailed later File notches Os about -in deep li-in wide float about h-in wide /16 high allow clearance sockets couplers Attach piece /i6 x 3/4 x 1-in ply rear plate blind nut Other parts bridges go after hinging trued-up 4-in-wide 6-in harder balsa cut bottom leading edge sheets 38 Model Aviation Hidden Z hinges provide butt fit fiaps shown Same alierons Clean lines evident wing simple D-box construction Fuselage plywood balsa pine nose wont find much stickino outto create extra drag Pica author msmu ana iightweight tail surfaces sheet balsa fin laminates between fuse lage sides low stab position gives mini mum fuselage stress dork landing ange ps nave no external naraware wings nat center section aiiows simple Tllgnt-ready setup Text has details couple movement flaps stab Left wing secured tne nuseiage oy nternai tappea noia-aowns note tne comoinaiion law nuouvaun atthe front right picture Right Cables T fitting operate rudder Tail surfaces built -in sheet balsa optional cutouts ribs ATRIX THERMAL SOARER BALM PLY PINE BLOCK BY HARLEY MICHAELIS N N N NN K N N 16 BALSA LEAD i PLY PINE BLOCK ~N~ BALSA N N C-GRAIN NNbALSA N N N X 4LSA SPAR SWINGEE -4 BALSA RIBS N extend under Os end cap Cut off -in-wide strip fit pin hinge line 3-in-wide balsa re maining strike reference line rear sub leading edge pin down Place -in-wide strip between spar Add bottom doublers through ribs 2 forward spar Cut flap bottoms fit Y32-in plate outside cap Mark bevel rear t nothing Over backing MonoKote other cover ing wick -in-wide strips 4 ply Zap Pin place Boron filaments optional help produce rigid center section strictlyforcareful builders 1000-ft spool filament available $25 Model Research Labs 25108 Pky #B 160 Mission Viejo CA 92692 About 200 feet 4/100 oz used Careful handling essential Begin making shallow box foam spool dowel washer turn Make hole slit box edge through dispense filament lay whole thing over plans other white background Use eye protection bare hand held over filament use pliers break off 30 pieces 3 ft long Meticu lously inspect hands paper tiny shards pick up masking tape Dangle filaments between thumb index finger smooth flat Center filaments along spar line smooth flat straight Use covering film backing around finger hold filaments will apply glue Tack center andtowardthe ends small drops thin cyanoacrylate CyA Let application wick out set accelerator Never run fingers back against broken ends Fit onepiece bottom spar apply thick CyA hold flat board edge until set Stick pins adjacent rib cap align Spray ply CyA accelerator put slow CyA rib position hold flat Lay cap sets together Drill A6 pilot holes add doublers tubes pins drill out set Cut slots steel bar Glue ply ribs overthe spar plates Add other ribs fine teflon CyA applicator assure no glue extends beyond /I6 either side hinge line See Center Block Assembly CRA de tail Fit ply pieces between ribs spars Stack drill dead center 6-32 Du-Bro blind nuts Enlarge hole center piece accommodate flange Laminate assembly flanges butting running bolt through use Fast K 17IA SOLID BALSA WIAYSPYI/BBALSA/ ///WINGPLAN 9 VI6 PLY I4 WASRSJ1FLAP INLAYAlL C YSBBAAYE TYSANI ER SECTION AIBROIL EBIABRA REAR 4 1YA2PLY16II TOR 9IAETRBS I I 9 TORIBRI III IJJ BALSAVA TBATTEN CAP STRIPS SN RIBS 2-5917SPE TL16I2 PLATEBALSA 7L--- A64 II11 O/IA SST3/163/BII PLYBALSAII BALSA REAR z-- FLAP FlOATSV32 BAT REAR PLATEYR N FOR DOUBLERS TRIPS B B 2 EAD SPA EA RE HO E PLATE4I2AIlRECENEBI LEA BA4 PLY PLY CORE KEYHOLE PLATESW ANE NOSE32 PLYLIJNEL BlOCK 7 6 16001 SLAB ABE U SOIDBEHO BIDS Threads Ace Tower one-piece hard block Form hold-downs s x h-in tem pered aluminum brass etc shown side view Avoid overlength Make spares field kit Glue 6 ply plates center block assembly slot center key hold-down Form L bracket 6 aluminum extrusion Position hold-down L top spar center block assembly Through nuts drill %4 pilot hole through Left see setup 1/16 ply slab fuselage sides joined two farmers nose core/spacer block Right Ply bottom croaspleces keyhole plate added Lead ballast cheeks glue core hatch has 1/64 plywood edging rear alignment key 40 Model Aviation view belicrank mounted vertical fin inlays pushrod rudder T tube stab support wires Hopefully photo reproduction will show what C-grain balsa looks like Full-Size Plans Available. See Page 188 IDIIIS B RD SPARS I/LA PLY BRACE BALSA FILL SWE BAR IN TIP BLOCKED SPAT DIWEWAL OW PLY CAP NYLON TUBE RABRER{ SW NOEEIL OP SI WINGPLAN L E SHEET 00 /30 PLY N VIR BALSA OSEELERS28 PLY RIBS 2 TOO QW SN RT ON 3/32 GLADE PINBTUBE CAPS EORAIN WEBSV3U PLY C NOGAPZLW4 PLYIi lASSES SEE 3/lRVER11C---______ _______ TEST28SPRJVW% 22 SOLOER AIRHDLC1}KHiNOE OATSLIDES IL B OAT REAP _________ _____ 4SLOT AT DEFLECTNOTE IF STEEL SAP IS NOTCHES ___________ -0W4I/3tDEEPATOUTER I/H PLY RIBUR4 PLY BE OMITTEDI/lA PLY FRONT BSCREW ANTI -SOASE MAYIo-vBjJzc HjTIPS HAVE 3/30 -II12131415IA 7 4-40DL RU3/3t3RRDI B. WITH ALLENBALSA SPARSV PLATE V EAS SCREWSVB BALSA ETS WIDTH IS FUNCTION ______AP _________RIGHTSIDEOF SERVO CASE VIA BALSASLI-PB LANSHEET _______________ SHEET ONNYBSOAPTER BOTTOM zi OW 1/2 BALSAI WIDTH BUTT FIT BALSA BLOCK -OPTIONAL CATOSTWINO TIP AND RIBSSOS ALUM ANT-SOSSESTAR FILL VB4PLYBALSAITHINLTr IBRACHET 0lEND CAPAPEJKFINRUDBLSA ____--I1I/WID IIBATT BNOTCHTRIM BAR TO SLUE IN liP --BALSAAWSEATINS-____WIRE RAISE______________ ORArN 0TRI-STOCK TAPEVIEW—I/H4PLYSABOECKFIN IFSBuERS ATOP OBLES VB PLYVB PLYI/B___________ BL BRACKETI/IN PLY CROSOPIECES~7771VIJ1 CENTER BWCK-FITSkiVlrI PLY ITT BETWEEN S RII/YYIII B-BLI jAOSBLNSTSizzPROCTORVR PLY OAMLER COLLAP 4-40 BL EATTNO TAPEUN4PLOSWEL~= AP--SUB-RESIDE VIEW iCRIAA3/B TEMP ACOM HLDN N ALAWBAR E LSA DEER BLOCK DERITS BBS 372 440TRR ROD0I2345 BBASS STRIP I aluminum pieces enlarge %4 Attach check alignment glue assembly place Fit vertical webs precisely Make dry run spar web stock determine amount thick CyA youll need good joint Web rib 5 Unpin panel Wick ribs sheeting CyA Shape sub leading edge Study details steel bar re ceptacle Solid glue joints essential Side members must match bar height no play plans show two setscrews blind nuts friction hold tip However following locking setup later proved advantageous Set blind nut rib 6 locations Dremel tool notch bar about 3/33 receive -insetscrew *-in socket-head screw wing underside Also trim off bar slide over head blind nut Have bar locked place play outward later gluing tipsflush setup inboard ends ailerons need angled Use ply both top bottom center bar vertically Make sure bar slides easily cap Fill spar edge balsa Add top spar boron filaments bottom Section ribs hinge line /16 members Refer template C cross sections make beveled tapered aileron strips start 3-in-wide sheet True edge cut bevel cut taper table saw band saw very useful sure true edge sheet before cutting successive strip Left Pine cheeks belly fuselage Balsa planks added shaped Right Box author ues fordispensing boron filament strand exits through hole edge box caution everyone use boron isnt br haphazard Use extreme care December 1986 41 /OPEN VIEW 3B7 030-1iF- 542 DEBBLASIFN 4-40 DLSTEEL BARON PIECE III/B 3/SI PLYASS BORONSPRUCE APSTARS II BBAOS SLIDEBOPTONAL BORON AND TRACK055 OR V4 BALSA SORTFILBAIENTO TO MUSIC WiREORBS WEBS TOMID RIBS 5NH SIB 7SEE TEST II2 HP Glue leading edge flap Add /64 ply base drill -in hole leading edge tubes Groove struc ture axis wire hinge line Position tack tubes CyA Remove U secure tubes between partial ribs harder balsa cut flap tops least overwidth Bevel last /8 about nothing Position tops flap trailing edge wick CyAfirst /64-in ply ribs finally leading edge Fine-sand along hinge line butt fit carefully preserving sharp edges Feather trailing edge Add strips spar sub leading edge attaching Az subsheeting Slip L bracket note mixing aileron rudder Reversing switches transmitter may affect direction prime channel Set aileron switch move its servo clockwise right command Later set rudder channel switch move proper direction mixed unmixed crossing cables necessary Put /16 ball links 450-offset output holes aileron servo Glue nuts Position case sockets pass above bottom sheeting wheel rotates necessary plan cut top sheeting allow /16 extra overhead case end Jam plate balsa between 0 ribs down servo guide placing rails Fashion bracket allow some cinching down seating tape underside Make slider track /16 hole brass sliders just outside end cap neutral Build tip sections did center boron Yi6 x members hard balsa Spars hard Y32 x i-in balsa Use template T make No 17 rib Stack-shape ribs 42 Model Aviation Above Theflap mechanism shown herein itsentirety isfunctional simplicity Right Tubes receive U Single-piece rear plate shown later changed two bridges perthe plans Dark band spar bundle Zap-applied boron filaments Left Z-hinges three stages installation prior applying Tex covering Right Spaced plates bridge Servos held place brackets Tapped aluminum holddowns easily replaced practical means anchoring wing fuselage Left Steel bar glued tip right slips receptacle Threaded rod Swingee aileron actuator slips slider hole link aileron Right 33-in wing tips quickly engage disengage Ordinarily center section left fuselage transporting metal clevis Foam rubber will permit tension slider hole Radio depressing wire engage slider check aileron operation Move Glue Goldberg tube guides Cut adjustable horn brackets out longer foam eliminate bonding matched throws treat nuts wire within tube Loctite Place 1/16 ply shim under Swingee center section top sheeting true behind aileron leading edge Cut slot edges harder 1/16 x 4 x 48-in balsa numbers 8 through 16 between templates C leading edge far ply Sand size sheets about -in overhang T Sand bevels lower edge Save ply wedge fill space between front rear Determine top patterns Scribe around tern- Swingee top sheet wedge sides invert over backing plate 3/n stock cut along line top sheeting position -in overlap covering film Butt edges hold flat actual ribs Make extra No 1 7s -in front rear run apin through mark dispense tiniest drops thin CyA balsa swing out Sand slightly con- Glue wedge sheeting join Fine-sand top side form glue Swingee center section withouttwist can Jack up tip form dihedral tips attached manually check apply top sheeting Make ply braces good fit between pushrod operation binds hangups structure attached suitable board An spars ribs 7 9 Glue end cap Make sure bent rod moves easily Continued page 44 caps butt sheeting jams cap Cut section out No 8 longer brace glue glue bar dihedral angle bar locked place play Add ply fill top bottom cap shorter brace Swingee installation soak stiff Swingees oil clean exteriors Notch spar 6 x 1A-in strip receive Swingee fit should snug arm right tip moves left moves Swingee up Position hinge pin hinge line smooth side down drop CyA body holes press Glue n spruce blocks sides sanded same thickness Swingee Add A2 beveled ply cap Slip Goldberg 3A2 adjustable horn bracket onto arm use Swingee nut metric force Swingee body maximize deflection sharp right-angle bend will needed slip well slider hole soft 146 Su-Pr-Line Nyrodapter good rod use Mechanical trim ailerons will accomplished via rod clevis heavy-duty nylon clevis can used drilled out No 47 bit Use Loctite metal clevis work out order free up enough adjust ments can made Screw rod little shy midway threads Swingee neutral mark rod cap remove bend Trim bit over Y8 author withhis Atrix Harley says hes cutting balsa over5O years Hes early smooth off Use keeper LSFmemberLSFO23 hehasachieved Level lVintheLSFaccomplishmentsprogram December 1986 43 Swingee front blocked glued place rear slides between ply plates during deflection desired non-gap ailerons shows what need wing fairingsplywood base core balsa sides SOMETHING NEW & BETERN THE uii CTJPJT4 SPORT/TRAINER SIMPLE TO BUILD EASY TO FLY TRAINER -ORBUILD IT WITH AILERONS AND DO IT ALL ITH 05 ELECTRIC MOTOR 48 SPAN 50 IN Z SELECTED DIE AND MACHINE CUT BALSA AND PLYWOOD COMPLETE ROLLED PLANS STEP-BY-STEP INSTRUCTIONS ALL HARDWARE AND FORMED GEAR FLY WITH 15 TWO CYCLE OR 20 FOUR CYCLE ENGINE $44 0 kdEDAVEY SYSTEMS CORPORATION ONE WOOD LANE MALVERN PA 19355 215 644-6772 ASK YOUR DEALER inexpensive pressboard shelf cen ter stores stack good bet Rip 8-in-wide piece keep surplus Secure structure board spar rearward bits servo tape Make keying marks across end caps join spar thick CyA holding surplus board until sets main board edge let gravity pull slower CyA down ply subsheeting about 2-in intervals Hold until set work first tip other two three ribs time Wick overhang sub leading edge instant glue Proceed same manner rearward spar Trim excess sand straight add leading edge Fine-sand achieve pre cise mating flaps Keep edges sharp Cut out section inlay L bracket Sheet tips above build washout raising rear tip -in beveled strip along hinge line Shape leading edges dont round hatch butts Flap/elevator mixing elevator pushrod moves forward impart downand down flap achieve proper elevator action mixed unmixed direction motion can reversed either switches flopping servo its opposite side Youll need squat flap servo such Airtronics 94461 Leads 1 2 3 signal negative positive respectively long Futaba FSH-6E arm fits 94461 shaft makes good setup Block around case cant move stick extreme throw trim tab cen tered angle arm about 450 rearward Secure bracket Fuselage tablesaw band saw big help First rip pair 2-in-wide pieces position twists will opposing Hold two together thumbtacks spot glue Its best align along top behind spot front former will go Sand fine finish Mark side cut both profile band saw Notch -in ply crosspieces sand edges true Make formers Add block former provide place attach servo Glue triangular stock front former Rudder servo can also go behind former Join front former right angles L-shaped jig get fronts Add triangular stock rear former bevel edges glue Prepare nose core Angle edges same way sides keyhole plate recesses Fit add spacer blocks cap rear 1/33 ply Trim hatch screw passes Prepare key hole plate keyhole Add hard triangular stock between formers forward bottom spacer blocks Clamp nose core Y32 ply draw centerline bottom Position fuselage mark outline along its exterior Fit glue Continued page 46 44 Model Aviation K 5 BALSA WODO *72 complete set -73 LI DER PLANS 0- INEXPENSIVE 0 EASY TO BUILD iL/\Y 0-FLYING MODELS 0- FAMOUS AIRCRAFT REPLICAS Z 0-RUBBER BAND HAND LAUNCH era agaavr STAR KRAFT PO Box 321 BOUNTIFUL UT 84510 BUILD EACU UBIQUE PLYINGTO ORDER COMPLETE NOUEL FROM 1116 SHEET SET OF 17 PLANS BALSA 3/ID STICK BALSA SENU $750 PLUS USE LESS THAN ONE SHEET $150 POSTAGE TO AND ONE STICK PEA NOUKI I Winning Ideas FOURMOST $ RETRACTABLE TOW HOOK RELEASE Price S590 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight 491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE $300 40 AIRFLO ENGINE MOUNT IDEAL FOR QUICKY 500 PRICE $630 Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Codcpit Coaming crosspieces Invert everything onto work surface gluing core sembly shim keyhole plate plane top edge sides Glue ply bottom Cut fin profile Make inlays cutouts fin match Center /16 x strips inside Slot fin bottom avoid slop bind use No 40 bit 3/33 wire either No 51 52 bit metal clevis pin bellcrank No 54 bit will hold i6 wire tightly Add inlay doublers glue inlay position bellcrank inside drill 6 pilot hole pivot point Remove bellcrank Attach other inlay Put shim between Drill hole sharp 3/33 bit Mark cut smooth /16 wire arcs Insert bellcrank clevis Goldberg true /16 threaded rod attached Make main 3A2 support run through Widen slot clevis doesnt bind bellcrank binds pry between dou blers Zap wire dowel-end drill guide may made 2 6 ID brass tubing shimmed Y16 1-in bits telescoping tubes Add triangular stock point fin extends ply subdeck pushrod through formers glue fin right side stab flush bottom /16 end Clamp between other side Put pin front fin run string nose Shift left side stab fin align slab sides glue 1-in length subdeck hold alignment Ignore fin tilt Put pin -in off center nose lay long straightedge fin side align no built-in turn Clamp ignoring tilt Sand sides precisely fin rear establish position Unclamp apply slow glue reclamp Bring fin upright twisting fuselage between knees about 1-in lengths subdeck progressively added fin forward top bottom slow CyA Protect fingers back ing Sand edges plane sides Glue keyhole plate Glue /16 sheet lead cheeks plumbing supply out let nose core adds 3 oz balance 800 900 mAh battery pack Using band saw cut exterior planking shaping using hard blocking up front hold-downs Attach slow CyA accelerator Feather box except saddle center fuselage ready fine sanding position hatch block wing leading edge point Mark perimeter profile Cut band saw add 4 ply along edges excess front 2-in block can glued rear over ply edging give extra width length Attach rear key Drill /16 hole length -in dowel center block screw goes Drill through locate keyhole slot rear Shape keyhole Adjust screw ver Continued page 141 46 Model Aviation AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY 1*IflflNI END WEYZZUE 7550 Son GoArIHI Hood KOABFO CA 93422 U-1717 $425 17 DIFFERENT PLANS INCLUDING F-lUF-lB F-18F-4 U-2A-U SPACE SHUTTLE 10 OTHERS OTHER FOURMOST PRODUCTS d SASE Complete Information FOURMOST Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 save money help AMA NEW PARTNERSHIP PROVIDES CONTRIBUTION OF 15% TO AMA * Order checks through us AMA logo optional * .and 15% purchase price will donated AMA name unique new concept way both yourself AMA result new no-cost partnership have major check printing service members Now can get personalized checks imprinted AMA logo optional prices compara ble lower bank charges will probably save moneyl Best 15% purchase price will come AMA contribution instead bank profit youll receive same high quality processing guarantees youre used Re member asking buy anything already buying just buy through AMA Just thinkl member ordered checks through us uld generate $150000 annually help avoid future dues increases Order now help AMA earn new income keep ad supply checks until re ready re-order customer service call 1-800-328-6795 ext 439 ORDER AMA CHECKS HERE TOI AMA CHECKSI 200 Wallet-Style OX 69 Deposit Slips Register2 complete order information box-CIRCLE PINES MN 55014 pay check Sign below automalic Check Starling No UCheck Styta charge checking amount 2$9 diede Duplide 55 95 150 checks ONLYCheck Design $795 WA[IC WalletI g-F---1I SgnaureI Ne/QuantityofBos &neveyI 01 02 04 PER ROtma hone numberCowrneeded10llis PU$9Pease allow 2 3 weeks delivery packageUse AMA OFw mailed address checks0 fh5NoI Em. mm mmmmm inmmm inmmmminm ml Order now Help yourseff AMA Plus Si box tax ud ddsuv adequate another serious accident other day injury pilots hand required numerous stitches Fortunately close emergency squad arrived scene very promptly also fortunate have several very competent folks hand knew deal pressure points andtourniquets Please dont fly alone above give prop greatest respect individual himself believe would have very serious fatal situation Thats bad cut RC flying field above inci dent took place equipped telephone However members advised telephone gas station couple hundred yards down highway en trance field Dick Roe wrote above account present club field accident happened tried summon help means CB Channel 9 .and got absolute ly nothing dont count CB much help Have safe month John Preston c/o AMA 1810 Samuel Morse Dr Reston VA 22090 Plane Talk/Winter Continued page 34 balsa wings200O00 RTFs ready-to-fly year Two different cultures seldom crossing late 20s American Boy tied Aeroplane Model League America AMAs predecessor over 300000 members contests Nationalsand fine flying balsa cement tissue aircraft Lind bergh flew Atlantic result Bernar MacFaddens start-up Model Air plane News fusion point According Rockefeller Foundation 2000000 us Air Youth Thirties What sparked Air Youth masses modelers created across nation Hearst newspapers Junior Birdmen Scripps-Howard papers Junior Aviators followed Lindbergh turned worldmodel full-scale long last things came gether reinforced magazines like Flying Aces Air Trails monster larger audience current magazines combined white-hot progress became commercially case devil take hindmost almost gone now old ones think Ray Arden flying Gas model across Van Courtland Park 1904 Merrill Ham burg made AMLA Jim Walkerthe magician showmanship Joe Ott few us yet Charlie Grant Bert Pond am convinced anyone will salvage history Does anyone care care Bill Winter 4432 Altura Ct Fairfax VA 22030 Editor last Bill Winters Plane Talk columns Bill has already written num ber effect news spreads like wildfire words may sound like something youve heard before Certainly Bill no spring chicken though has cleverly disguised years has reached stage life does enjoy meeting deadlines . keeping files sufficient order able draw column material put nutshell wants rest have wondered out loud Bill will happy doing lifes workwriting and/or editing enjoyment othersand have suggested him possibility continuing column irregular basis said no though responding advertisers mention read about Model Aviation remain ready consider alternatives column no seems case suggest readers should mourn its passing Instead think grateful pleasurable reading Bill Winter has provided us years Carl Wheeley Editor Publisher Atrix/Michaelis Continued page 46 tically Shape hatch Groove under side cables can pass over former Add contoured area saddle An optional skid can set slot during construction Goldberg wing skids can go after finish covering Drill shallow holes rudder cable tubes Inset trim flush Attach hold-downs temporarily make template scrap Y16 ply holes spaced match hold-down taps Place position interior bottom mark drilling Make slots about long easily locate taps through fuselage underside Shape fin fine sand fin fuselage hatch using Model Magic filler needed Tex covering excellent both fuse lage fin stretches shrinks wears better unreinforced films Three four thinly-brushed coats clear poly urethane colored stuff makes look like molding Light fiberglass cloth can used too seam bottom extend over hatch saddle areas Heat stretch like crazy nose Attach 1/56 x -in seating tape finished saddle Continued page 144 December 1986 141 AERO-PACER $8900 Span 64 1/2 Weight 55 7 lbs Engine 45 61 ES 29 45 TS 19 25 oz wing loading 4 channel Sport Trainer Span 543/4 5475 Weight 5-6 lbs 787 sq inches 15 oz wing loading Engine 45 65 FS 35 50 TS 4 channel Both kits designed primarily Four-Stoke engine fly equally well Two-Stroke engine Add $450 shipping handling Direct SalesMichigan residents add 4% sales tax Check money orderMastercard Visa LARGE SCALE PLANS AVAILABLE Please send 5100 complete list supply Modelers fiberglass parts plans Write call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN ciTy Ml 49135 PHONE 3131421-6358 BRAZED HEAT-TREATED WIRE GEARS & cABANEs PHONE 13131261-9064 Attach wing fit hatch under it Make fairings merge cover paint Later can remove covering under spot will attach fairings glue wing Tail surfaces Cut rudder blank Using /16 ply shim drill Vs-in hole nylon tube Goldberg 3A2 strip aileron hinge set used U Make T detailed plans File exposed threads off stud slip tube sand nice airfoil fin Butt-fit hinge line see text below Z hinge External Z hinges made clear covering 3M vinyl tape also work secure well Cut stabilizer halves planform butt fin locate tubes Cut slots faced Vs4 ply Fit Vs-in strip V16 ply between facings flush stab bottom Lay Vs-in OD tube tack CyA Slip off secure well CyA epoxy putty strip Vs-in ply top Repeat V16 wire tacking tubes halves same plane securing well Centers can optionally removed balsa strips notched ribs Shape symmetrical section thinning toward tips stab servo goes under bracket output arm pointing up pushrod side rear former add guide around pushrod reduce its bending under load Cables can run down finished fuselage rear end servo end knots secure Sullivan 2-56 threaded coupler Use metal devises Crimp cables T bits tubing Hiddea Z binges flaps ailerons Install after wing has fine sanded vacuumed tacked ready covering hinges easily made MonoKote durable work freely provide very close fits bow leading edge can eliminated make hinges flaps first cut strips MonoKote inch wide face perpendicular surfaces QUAY BARBER MODELS Il SHOESTRINGSIRS SEMI-KIT $11995 KIT$15495 aIak ~JRIVS5U SF211KIT $11995 KIT$15495 EPOXY/OUSS/FOAN/BALSA CONSTRUCTION WITh DRAWINGS AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF SCALE FULL OR SEMIKITSCauniC 8 10 lbs weight Wind 790 sq wing ares SEMIKIT $10995 60 2 stroke 12 4 stroke KIT $14495 skit prices plus shipping scredit cards welcome Ohio residents add 6 % 12161 7774172 2710B Butternut RidgeNorth Olmstad OIiioMO7O flap adjacent structure Use strip /16 metal bar trim down overlap both top bottom Apply separate pieces covering around ends adjacent portions wing Trim -in Covering can applied trimmed flush Using straightedge cut four 1-in -wide strips bit longer flap Lay strip adhesive side up straightedge Measure thickness flap leading edge strip mark reference line slightly less height Tack top strip line seal table edge Mark line along adhesive side Cut 1-in hinges Slip U tape flap wing Insert center progressively iron hinges top surface checker board pattern U toward tip surfaces butted aligned pull hinges remove slack progres sively iron bottom Trim Vs Slide collar onto U straight shot output arm Attach stud nylon bracket hole 3/4 U axis Manually activate flaps see everything floats freely Add rest bridges Notch bottom piece stabilize rear hold-down Bend soft-wire U flaps plane other Tem porarily tighten stud collar set screw hole 450 rearward Groove rear plate permit up-flap Fit link output arm trim tab neutral adjust link bracket stud angles stud output arm servo throw get near 900 down transmitter stick moves top bottom Use maxi mum adjustments available mechanically rather extreme pot adjustments Solder collar stud place have programmable pushbutton flap ad just overing Wing flaps covered simultaneously can done piece may want different color bottom covering two pieces actually simpler Cut 11 -in-wide piece fit over top about lap around both leading trailing edges Attach aluminum L portion holddown wing inverted tack 144 Model Aviation RC SOARING DIGEST A monthly publication cc International RC Soaring scene SI 6/yearin USA US 520/yr Canada& Mexico US $24/yr elsewhere via airmail RCSD PO Box 269 Peterborough NH 03458 Atrix/M ichaelis Continued page 141 GIPSY $10900 MOTH ATTIUN 14 EPuXY GLASS COWLS FOR NOSEN PICA SIG MORGAN BALSA USA PLAIT CONCEPT FLEET HOSTETLER RCM TORAPT SHEBER PITTS E SCALE SUPER Gus FOEKER 07 BOEING P12 P26 P4B2 P454 SPARROW HAWK GEE BEE MOD MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS sTARGUSTER II SCALE J3Bl BABY FLYBABY OTHERS WHEEL PANTS FOR CITABRIA STARGUSTER II PIUS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P5E HAWK MULLIGAN OTHERS -- M Ti- TENTH ANNUAL MODEL HOBBY TRADE SHOW INDUSTRY MEMBERS ONLY AY JANUARY 9 1OAM-6PM GENERAL PUBLIC RDAY JANUARY 10 1OAM-6PM GENERAL PUBLIC AY JANUARY 11 1OAM-5PM MODEL MODE MODEL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF AIRCRAFT L ENGINES *GIANT RAFFLE ATS O CONTROL SYSTEMS *SWAP SHOP CARS LING ACCESSORIES REST WEST ADMISSION Adults -$500 under 13- $300 under 6- free adult Discount tickets worth 50 cents hobby shops within 500-mile radius Pasadena California STATIC DISPLAY COMPETITION IN MANY CATEGORIES zI IOiiSi j g i~ Jw1 rWILI z1j1 U ii fI ELSJIZU INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Cosia Mesa CA 92627 Ph 714 548-4700 645-8830 covering along leading edge break dont iron down overlap Turn wing right side up tack looks straight iron covering along break wing adjacent inboard flap ends Slit covering Drop flap make 1/8 3/l6-in space along hinge line Pull covering around flap trailing edge tack iron trailing edge underside working out wrinkles slack Tack end caps progressively slit pull around cap overlap bottom can remove slack heat gun iron covering hinges Center straightedge along gap slit Trim excess taking care cut hinges Slip bottom covering under top tack iron down overlap Repeat top trim cap edge Puncture setscrew location Protect seal along hinge line cardboard using heat gun final shrinking Push U wire well tubes secure Zap Install hold-downs -in hexhead tempered bolt front 3/8-in rear Tips ailerons Attach facing strips trim 1/16 flaps Strips hinges should joined taper hinge strip first cut piece fit make four hinges root Swingee Before cutting remainder number pro gressively 1-in spacing adhesive side next hinge outboard Swingee gap will very narrow toward tip slit special care Setting up Balance out 3 rearward leading edge stab should set about /16 throw way its leading edge Set align fuselage top neutral slight positive inci dence Make sure washout equal least ship will stabilize flat level glide Set inboard aileron throw least reflex up neutral Very little down Ma less needed Too much causes adverse yaw tip walk masquer ading need nose lead bigger vertical tail Avoid excess servo rotation will reverse down aileron Set coupled rudder -in maximum deflection starters adjust mixer get on up stab front flaps go neutral full down Meticulously follow settings rec ommendations below initial flights Go easy tightening hold-down bolts Hand test-glide flaps neu tral adjust stab linkage level glide Tow first flaps After release let ship have its head build speed flatten out Give down trim keep boring ahead lot sky can covered little stick input needed maneuver get set right cruise slowly trim little down flap rather holding nose up some turns get familiar Hold 150 200 dive release controls balloons balance farther rearward retrim elevator tucks add lead up-trim Get stay put very gentle automatic pullout prefer Check effect low rate Check effect flap/elevator mixing safe altitudes Dont slam down flap will stall mixing correct Ease out flap slowly Fine-tune full down eased will have descent attitude like Gears can strip ifflaps down dork hit uneven turf neutralize use pushbutton before contact act spoilers mixing right n down flap dramatically steepens tow Up elevator can applied airspeed adequate Neutralize flaps just before re lease youve become familiar tows go zoom push button can used impart up flap briefly increase zoom speed cant find clockspring steel two pieces send $100 pre-addressed heavier envelope 394 postage applied Harley Michaelis 26 5 Roosevelt Walla Walla WA 99362 responding advertisers mention I thatyou read about ModelAviation December 1986 145