NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 DGA Designs 00 DGA00 DC4 Designs 0 0 0 C o5 oU 0 0 U C 0 1 OUARTER SCALE PLANS Ouarter Master Sport Bipe $21 Ouadra 35. 73Span.E-Z build. Great Flyer.5Seml-Kit Anailable.PPO 00 DAVIS DIK 905Span.s25 Ouadra 35 power similar. PD 01933 KINNEFt SPORTSTER U Model K.117 Span.035 power. Pea 4-CYCLE PROJECTS 0 o v AKRON FUNK SI 15 Scale 54 span 80 sizeSl 4 cyCle Fantastic FivePPD ____0 DAVIS DlKhh 603 Spar.D 45 4 cyCle Similar..Pea s15 hoc Inch wale Sixth scale3l _____________0 1933 KINNER SPORTSTER5 ID Model K.7a Span. 51-754 cy Pea ap PhotO reduced 14 Scale plans o TWO Inch scate Seth scale 0________0 Mere 004 plane0 coming PHOTO DOCUMENTATION PACKS availableon Scale Plans SI ALL PLANS ROLLED SHIPPED UPS O Complete wlnstrOcf ion SookICt Send siDO Catalog O Nem York State Residents add 7% sales tax. Send check 5 O MO COOS. Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI
Edition: Model Aviation - 1986/06
Page Numbers: 28, 29, 30, 31, 32, 33, 34, 137, 140, 142
NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 DGA Designs 00 DGA00 DC4 Designs 0 0 0 C o5 oU 0 0 U C 0 1 OUARTER SCALE PLANS Ouarter Master Sport Bipe $21 Ouadra 35. 73Span.E-Z build. Great Flyer.5Seml-Kit Anailable.PPO 00 DAVIS DIK 905Span.s25 Ouadra 35 power similar. PD 01933 KINNEFt SPORTSTER U Model K.117 Span.035 power. Pea 4-CYCLE PROJECTS 0 o v AKRON FUNK SI 15 Scale 54 span 80 sizeSl 4 cyCle Fantastic FivePPD ____0 DAVIS DlKhh 603 Spar.D 45 4 cyCle Similar..Pea s15 hoc Inch wale Sixth scale3l _____________0 1933 KINNER SPORTSTER5 ID Model K.7a Span. 51-754 cy Pea ap PhotO reduced 14 Scale plans o TWO Inch scate Seth scale 0________0 Mere 004 plane0 coming PHOTO DOCUMENTATION PACKS availableon Scale Plans SI ALL PLANS ROLLED SHIPPED UPS O Complete wlnstrOcf ion SookICt Send siDO Catalog O Nem York State Residents add 7% sales tax. Send check 5 O MO COOS. Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI
Edition: Model Aviation - 1986/06
Page Numbers: 28, 29, 30, 31, 32, 33, 34, 137, 140, 142
NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 DGA Designs 00 DGA00 DC4 Designs 0 0 0 C o5 oU 0 0 U C 0 1 OUARTER SCALE PLANS Ouarter Master Sport Bipe $21 Ouadra 35. 73Span.E-Z build. Great Flyer.5Seml-Kit Anailable.PPO 00 DAVIS DIK 905Span.s25 Ouadra 35 power similar. PD 01933 KINNEFt SPORTSTER U Model K.117 Span.035 power. Pea 4-CYCLE PROJECTS 0 o v AKRON FUNK SI 15 Scale 54 span 80 sizeSl 4 cyCle Fantastic FivePPD ____0 DAVIS DlKhh 603 Spar.D 45 4 cyCle Similar..Pea s15 hoc Inch wale Sixth scale3l _____________0 1933 KINNER SPORTSTER5 ID Model K.7a Span. 51-754 cy Pea ap PhotO reduced 14 Scale plans o TWO Inch scate Seth scale 0________0 Mere 004 plane0 coming PHOTO DOCUMENTATION PACKS availableon Scale Plans SI ALL PLANS ROLLED SHIPPED UPS O Complete wlnstrOcf ion SookICt Send siDO Catalog O Nem York State Residents add 7% sales tax. Send check 5 O MO COOS. Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI
Edition: Model Aviation - 1986/06
Page Numbers: 28, 29, 30, 31, 32, 33, 34, 137, 140, 142
NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 DGA Designs 00 DGA00 DC4 Designs 0 0 0 C o5 oU 0 0 U C 0 1 OUARTER SCALE PLANS Ouarter Master Sport Bipe $21 Ouadra 35. 73Span.E-Z build. Great Flyer.5Seml-Kit Anailable.PPO 00 DAVIS DIK 905Span.s25 Ouadra 35 power similar. PD 01933 KINNEFt SPORTSTER U Model K.117 Span.035 power. Pea 4-CYCLE PROJECTS 0 o v AKRON FUNK SI 15 Scale 54 span 80 sizeSl 4 cyCle Fantastic FivePPD ____0 DAVIS DlKhh 603 Spar.D 45 4 cyCle Similar..Pea s15 hoc Inch wale Sixth scale3l _____________0 1933 KINNER SPORTSTER5 ID Model K.7a Span. 51-754 cy Pea ap PhotO reduced 14 Scale plans o TWO Inch scate Seth scale 0________0 Mere 004 plane0 coming PHOTO DOCUMENTATION PACKS availableon Scale Plans SI ALL PLANS ROLLED SHIPPED UPS O Complete wlnstrOcf ion SookICt Send siDO Catalog O Nem York State Residents add 7% sales tax. Send check 5 O MO COOS. Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI
Edition: Model Aviation - 1986/06
Page Numbers: 28, 29, 30, 31, 32, 33, 34, 137, 140, 142
NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 DGA Designs 00 DGA00 DC4 Designs 0 0 0 C o5 oU 0 0 U C 0 1 OUARTER SCALE PLANS Ouarter Master Sport Bipe $21 Ouadra 35. 73Span.E-Z build. Great Flyer.5Seml-Kit Anailable.PPO 00 DAVIS DIK 905Span.s25 Ouadra 35 power similar. PD 01933 KINNEFt SPORTSTER U Model K.117 Span.035 power. Pea 4-CYCLE PROJECTS 0 o v AKRON FUNK SI 15 Scale 54 span 80 sizeSl 4 cyCle Fantastic FivePPD ____0 DAVIS DlKhh 603 Spar.D 45 4 cyCle Similar..Pea s15 hoc Inch wale Sixth scale3l _____________0 1933 KINNER SPORTSTER5 ID Model K.7a Span. 51-754 cy Pea ap PhotO reduced 14 Scale plans o TWO Inch scate Seth scale 0________0 Mere 004 plane0 coming PHOTO DOCUMENTATION PACKS availableon Scale Plans SI ALL PLANS ROLLED SHIPPED UPS O Complete wlnstrOcf ion SookICt Send siDO Catalog O Nem York State Residents add 7% sales tax. Send check 5 O MO COOS. Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI
Edition: Model Aviation - 1986/06
Page Numbers: 28, 29, 30, 31, 32, 33, 34, 137, 140, 142
NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 DGA Designs 00 DGA00 DC4 Designs 0 0 0 C o5 oU 0 0 U C 0 1 OUARTER SCALE PLANS Ouarter Master Sport Bipe $21 Ouadra 35. 73Span.E-Z build. Great Flyer.5Seml-Kit Anailable.PPO 00 DAVIS DIK 905Span.s25 Ouadra 35 power similar. PD 01933 KINNEFt SPORTSTER U Model K.117 Span.035 power. Pea 4-CYCLE PROJECTS 0 o v AKRON FUNK SI 15 Scale 54 span 80 sizeSl 4 cyCle Fantastic FivePPD ____0 DAVIS DlKhh 603 Spar.D 45 4 cyCle Similar..Pea s15 hoc Inch wale Sixth scale3l _____________0 1933 KINNER SPORTSTER5 ID Model K.7a Span. 51-754 cy Pea ap PhotO reduced 14 Scale plans o TWO Inch scate Seth scale 0________0 Mere 004 plane0 coming PHOTO DOCUMENTATION PACKS availableon Scale Plans SI ALL PLANS ROLLED SHIPPED UPS O Complete wlnstrOcf ion SookICt Send siDO Catalog O Nem York State Residents add 7% sales tax. Send check 5 O MO COOS. Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI
Edition: Model Aviation - 1986/06
Page Numbers: 28, 29, 30, 31, 32, 33, 34, 137, 140, 142
NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 DGA Designs 00 DGA00 DC4 Designs 0 0 0 C o5 oU 0 0 U C 0 1 OUARTER SCALE PLANS Ouarter Master Sport Bipe $21 Ouadra 35. 73Span.E-Z build. Great Flyer.5Seml-Kit Anailable.PPO 00 DAVIS DIK 905Span.s25 Ouadra 35 power similar. PD 01933 KINNEFt SPORTSTER U Model K.117 Span.035 power. Pea 4-CYCLE PROJECTS 0 o v AKRON FUNK SI 15 Scale 54 span 80 sizeSl 4 cyCle Fantastic FivePPD ____0 DAVIS DlKhh 603 Spar.D 45 4 cyCle Similar..Pea s15 hoc Inch wale Sixth scale3l _____________0 1933 KINNER SPORTSTER5 ID Model K.7a Span. 51-754 cy Pea ap PhotO reduced 14 Scale plans o TWO Inch scate Seth scale 0________0 Mere 004 plane0 coming PHOTO DOCUMENTATION PACKS availableon Scale Plans SI ALL PLANS ROLLED SHIPPED UPS O Complete wlnstrOcf ion SookICt Send siDO Catalog O Nem York State Residents add 7% sales tax. Send check 5 O MO COOS. Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI
Edition: Model Aviation - 1986/06
Page Numbers: 28, 29, 30, 31, 32, 33, 34, 137, 140, 142
NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 DGA Designs 00 DGA00 DC4 Designs 0 0 0 C o5 oU 0 0 U C 0 1 OUARTER SCALE PLANS Ouarter Master Sport Bipe $21 Ouadra 35. 73Span.E-Z build. Great Flyer.5Seml-Kit Anailable.PPO 00 DAVIS DIK 905Span.s25 Ouadra 35 power similar. PD 01933 KINNEFt SPORTSTER U Model K.117 Span.035 power. Pea 4-CYCLE PROJECTS 0 o v AKRON FUNK SI 15 Scale 54 span 80 sizeSl 4 cyCle Fantastic FivePPD ____0 DAVIS DlKhh 603 Spar.D 45 4 cyCle Similar..Pea s15 hoc Inch wale Sixth scale3l _____________0 1933 KINNER SPORTSTER5 ID Model K.7a Span. 51-754 cy Pea ap PhotO reduced 14 Scale plans o TWO Inch scate Seth scale 0________0 Mere 004 plane0 coming PHOTO DOCUMENTATION PACKS availableon Scale Plans SI ALL PLANS ROLLED SHIPPED UPS O Complete wlnstrOcf ion SookICt Send siDO Catalog O Nem York State Residents add 7% sales tax. Send check 5 O MO COOS. Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI
Edition: Model Aviation - 1986/06
Page Numbers: 28, 29, 30, 31, 32, 33, 34, 137, 140, 142
NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 DGA Designs 00 DGA00 DC4 Designs 0 0 0 C o5 oU 0 0 U C 0 1 OUARTER SCALE PLANS Ouarter Master Sport Bipe $21 Ouadra 35. 73Span.E-Z build. Great Flyer.5Seml-Kit Anailable.PPO 00 DAVIS DIK 905Span.s25 Ouadra 35 power similar. PD 01933 KINNEFt SPORTSTER U Model K.117 Span.035 power. Pea 4-CYCLE PROJECTS 0 o v AKRON FUNK SI 15 Scale 54 span 80 sizeSl 4 cyCle Fantastic FivePPD ____0 DAVIS DlKhh 603 Spar.D 45 4 cyCle Similar..Pea s15 hoc Inch wale Sixth scale3l _____________0 1933 KINNER SPORTSTER5 ID Model K.7a Span. 51-754 cy Pea ap PhotO reduced 14 Scale plans o TWO Inch scate Seth scale 0________0 Mere 004 plane0 coming PHOTO DOCUMENTATION PACKS availableon Scale Plans SI ALL PLANS ROLLED SHIPPED UPS O Complete wlnstrOcf ion SookICt Send siDO Catalog O Nem York State Residents add 7% sales tax. Send check 5 O MO COOS. Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI
Edition: Model Aviation - 1986/06
Page Numbers: 28, 29, 30, 31, 32, 33, 34, 137, 140, 142
NO OCR TEXT THIS MODEL got its name own its similarity purpose Henry Fords famous old Model T car remembered its economy depend ability simplest RC model could build nor smallest has features important give fine stability capability soaring light air good takeoff landing charac teristics rugged though lightweight structure original model shown well over year old article written logged 275 flights very small fields originally planned model use Cox Dragonfly engine has clunk tank large capacity muffler throttle control Difficulty two Drag onfly engines made earlier com pany owned Leisure Dynamics caused us switch Cox Black Widow explains mount exten sion Past problems Dragonfly reported have corrected because preference throttle control ability taxi reduce engine speed cruising perhaps will give engine another try However now Black Widow simple inexpensive extremely reliable coil spring starter makes quick business getting model airborne following procedure almost guaran tees prompt starting Black Widow See 1 V starting battery fresh depleted Cox glow head must glow brightly Open needle valve 1 turns richer running position Prime few drops fuel through exhaust slots turning propeller through compression connect battery walt six seconds fuel vaporize Turn propeller once back ward against starter spring release nearly instance engine will Opposite Page smooth climb-out gentle toss local field explains School yard Scale has much appeal Small models can let fly times places otherwise Impossible Top Minimum requirements support equipment quick setup time make couple relaxed lunchtime flights just something thinkabout Above John Hartsfields versIon HenryT left has no flaps fliesas well authors June1986 29 prototype Dragonfly engine mounted hand-carved prop gear constructed Vs-ln-dla steel wire Using Cox Dragonfly allows start promptly wing flaps optional ground-adjustable twisting clevis flap horn intended allow small settings down-flap slow airspeed shorten takeoff runs aid generally small-field flying No -flap ever used John Hartsfield named model built duplicate flaps Both models flew peifectly start minute trimming being necessary small Goldberg flight box carry can Cox fuel small rubber fuel bulb compact 1V battery Cox connector spray bottle cleaner rubberbands spare props spare glow heads pliers screw driver Cox head wrenches simple package can carry model airport high school stadium 100 ft back door can air few minutes Henry T uses three-channel EK brick simplifies wiring since receiver two servos within brick An inexpensive two-channel twostick radiowould suffice battery 500 mAh ample flight time worry model weighs 30 oz ready fly Span chord 55 7 about 360 sq area wing loading about 12 oz/sq ft cowl contributes measurably clean lines models performance please omit Fuselage construction Select mediumlight balsa parts except noted Trace fuselage outline 3/ sheet cut two sides pair 62 plywood interior doublers Glue tape fuselage sides favorite adhesive used Elmers woodworking glue Make -in plywood firewall 2-in doubler two main fuse lage formers keeping everything square Assembling original model made easier through use several tools Dremel scroll saw almost indispensible cutting curved balsa plywood parts Dremel table saw fine-tooth blade does adequate job ripping sheet balsa thin plywood accurate strip dimensions -in drill bench mount ideal sanding disc drum quickly shaping hollowing balsa blocks cowls etc series large sanding blocks longer better coarse medium fine grit will aid through construction Pins clothespins small clamps mask ing tape used hold parts position gluing Install plywood balsa interior doublers inside cabin along fuselage sides Note 2 balsa feathered bridge ledge left plywood doublers Bend -in landing gear make its mounting lamination -in balsa plywood sides Epoxy gear wire unit glue clamp plywood parts checking alignment axles fuselage can now assembled about two main formers wing leading edge LE trailing edge TE Make everything square holding parts position lots masking tape Later bend clamp sides meet firewall use epoxy glue also Add triangular braces inside fuselage/fire wall joints Add balsa doublers top bottom fuselage edges between first former firewall Glue clamp landing gear unit front former wing leading edge position Bring rear ends fuselage gether gluing taping neces sary Add remaining fuselage formers attach vertical balsa strips inside fuselage former station Notice reflex inward curve fuse lage between wing tail Add Y16 dowel wing rubbers TE location reinforcing gluing area carefully make strong double-prong wing hooks per sonal gadget developed over 40 years ago two staggered prongs penetrate both balsa plywood absolute secur ity doubled wire less likely cut 30 Model Aviation carved balsa cowl please aont omit held place strIps MonoKote see text details spacer block required Black Widow engine visible carved balsa shell madeln son oaisa giucalo plywood ruggedness IIIn place rubberband wing rubbers hooks easily bent round-nose pliers con tribute cleaner look protruding wood dowels yet recessed rear wood hold-down dowel provides knock-off fea ture wing event rough landing Attach hooks epoxy inside out Add /s4 plywood bottom covering between landing gear firewall beveling outer edges fuselage gluing pinning taping plywood place Epoxy Goldberg nylon tail wheel unit fuselage solder washers necessary hold 46 steel wire fitting secure -in-dia tail wheel upper part wire bent backwards penetrate rudder steer able tail wheel control Solder washers necessary secure Williams Bros Smooth Contour 2-in wheels concealed hubs now have durable neat undercarriage positioned properly good ground handling Enclose bottom fuselage 1/32 balsa sheet grain placed di agonally Leave fuselage top open until pushrods installed June1986 31 Wing flaps built 1/32 sheet balsa held place MonoKote hinges Adjusting done ground twisting devices Flaps shorten field size requirements radio installation will vary equipment use brick mounted screws cross members made 46 sq hard balsa capped 6 plywood Photos show simple mount right fuselage side third servo Mount receiver servos nec essary correct final balancing Now can fit Sullivan flexible pushrods servo locations rearward pass through fuselage sides beneath stabilizer rudder pushrod exits left ele vator right Make long angular outlets trimming outside tube flush fuselage side Anchor pushrods several locations inside fuselage securely balsa crosspieces epoxy fuselage top can now covered diagonally-fitted 1/32 balsa Shim allow /16 edge against wing trailing edge will fit flush rounded cutout access rear wing dowel has Y64 plywood reinforcement fitted inside prevent wear tear attaching wing rubberbands Since front turtledeck windshield single balsa part can carved desired curvature made rounded bulged windshield faired turtledeck front fuselage lines sides firewall block glued up soft balsa layers carved sanded fit snugly place Next benchmounted drill l-in-dia drum sander used hollow out unit approxi mately h-in wall thickness Using fine-grit sanding block sand off thin layer balsa front rear base unit 4 plywood surfaces can added perfect fit IIII VH N I-_ III Sflb 6-bStS4~ j Ld t/ kVd5 b4/ F-I ~--HI III F Wdi5S R p s uselageI nstallc rossm embersa tt hef ronta ndb acka nda c rossm embert os ecuret heh old-downr ubberbandh ookb eforet heb ottomp lywoodpiecei sg luedinplaceT het opo ft hew indshieldi sf ittedl atert ot hec ompletedw ingL Ea nds mallb alsaf illersa rea ddedt ob lendt hel iness moothlyS malla lignmentl edgesa rec ementedb en eatht heu nitt op ositioni ta ccuratelyT herei se noughm ateriali nt hef uselages idest ob lendt hemi ntot het uttledeckc urvaturew ithu seo fa s andingb lockI nstallt eceivert hent hea ntennaN othingl ooksw orsei no uro piniont hana t angleda ntennad anglingf romt earo ft hef uselageO na n umbero fR Cm odelsw eh aveb uiltt hef ollowinga ntennai nstallat ionh asb eenu sedF romi tso utleta tt eceivert hea ntennai sp assedf orwardt hroughs hortc ementedp ieceso fo uterf lex-rod asg uidest ot hef irewallw herei tc rossest ot heo ppositef uselages idet Full-Size Plans Available . See Page 172 44MAbMA d -I -Il-------- II I7 IAe AMAlg j-~Ii1 [N II IIj II I pA K 11 1liII 64 FVWZI - J/Alp *MA Al A MA fMp TT TEsk /lp fr tMe ~MWAl L26Hl /6p 6MAI K N -/ / g-M----/A 74 _ F---_-A IiiII[/~/ II - ~ KQzQ7K lil Henij T 20C4 goes rearward inside fuselage termi nate tail wheelentirely enclosed positioning antenna may bring objections some experts has worked fine us Tail surfaces True alignment light weight goals stabilizer ele vator rudder area ample good slow flight stability control Select lightweight wood particularly solid elevators carved blocksanded straight-taper section ending trailing edge about V2-in thick elevators joined length Y16-india hardwood dowel piece /I6 sq spruce Notice two curved A2 plywood stiffeners inside stabilizerLE andthe Y16 plywood inside stabilizer spar rudder fm structure -in light balsa sheet 1/n balsa cap strips /n sheet balsa doublers spars Blocksand parts uniform streanilined section Since used MonoKote hinge elevator its LE must beveled indicated hinge line will closed sealed top slight V opening beneath rudder hinged three small Robart hinge points rudder hinge line rounded fin trailing edge left square Wing 24 /16-in balsa ribs sawn outline about six time pinned together block-sanded uniformly prefer extra strength wing lower spar can spruce hard balsa original seems ample limited aerobatics Decide whether wish build wing flaps Ive enjoyed playing myself obvious small flap deflection results net washout improves stability Otherwise wing built flat no built-in washout soft balsa LE cut Dremel saw its upper edge beveled facilitate gluing LE sheeting goes upper surface Yi6 x Va-in soft balsa strip beneath LE gives good rib attachment aids assembly allows little upturning under LE so-called Phillips entry improves pitch sta bility Assemble wing halves cyano acrylate glue CyA prefer choice Elmers woodworking glue Note V32 plywood wing joiners later fitted front back surfaces wing spars wing root space between spars filled pieces soft -in balsa Webs 1/32 balsa grain vertical glued behind spars several rib stations center flaps constructed light Y32 sheet balsa 6 triangular ribs Pin June1986 33 over piece Saran Wrap flat board apply top skin assure straight flap Note upper front flap leading edge rounded Block-sand flap fitting wing structure small clearance outer edges last full rib location near wing tip cut off lower spar upper spar extends under sheet tip Wing tips Henry T styled after Aeronca Champion Begin cutting soft 1/32 balsa parts cementing edge-to-edge complete tip unit grain running span-wide Cut 1/64 plywood tip outline doubler glued Elmers beneath 1A2 balsa tip outer edge Use numerous pieces masking tape hold plywood place glue still wet moisten upper tip surfaces cause curl lay over wing frame rib location latter still pinned down Tape temporarily place upper rib camber will shape tip dries make ready easy attachment wing tip location Cu install special tip rib upper spar rib doublers outside last full rib serves cementing ledge tips dry glue position pinning taping necessary Add 2 balsa tip edges small rear spar extensions fit n lower spar extension angles upward tip end parts dry join wing halves plywood joiners fix dihedral angle fit soft 1/32 sheet leading edge sheeting using lots pieces masking tape Add upper rib cap stripsnone used lower surface center section also covered 2 sheet balsa indicated top surfaces Block-sand entire wing Add %4 plywood TE reinforcement under trailing edge 1/n plywood strip wing LE fits against windshield point temporarily mount wing fuselage block small balsa pieces necessary behind plywood LE reinforcement should now ready carve sand wind shield rear edge wing LE smooth oontinuous line Again sand ing block spackling paste make neat easy job points like careful workmanship will reap real rewards way model finally appears Back wing tips bevel balsa tip edges upward almost meet plywood tip doubler see tip section plans Add 2 balsa lower tip part leading edge fair Make 1/16 x 1/32 cap strip bottom tip rib final sanding using fine-grit block wing frame complete Engine installation four mounting holes drilled firewall fit horizontally-mounted Dragonfly engine An extension must made move shorter Black Widow engine forward same propeller location Cut part soft pine bevel edges indicated drill 7A-in-dia hole through lighten hole can made Dremel scroll saw Add /16 plywood layers front rear total thickness drill four holes engine bolts cement mount extension carefully firewall As fit engine place add brass spacing washer tween engine mount both upper lower bolts left side provides slight right thrust Epoxy washers nuts behind firewall engine bolts can removed easily Downthrust has provided angle fuselage sides front edge Inexperienced modelers may dread build ing cowling contributes great deal models final appearance its streamlining flight efficiency Begin cutting two cowl sides soft -in balsa shape indicated beveling back surfaces fit against firewall Add top bottom parts keeping overall length shown tween firewall back Ace spinner Mark thrust line sides cowl block across front shaping cowl cut top bottom halves along thrust line Install engine trial error use drum sander electric drill smaller drum sanders Dremel drill cut out interior will clear engine Spotglue cowl together Cut 12 plywood rear face cowl fits firewall 1/16 plywood front ring bit larger spinner backplate Glue front back cowl Using sanding blocks powered sand ing discs shape outside cowl fit fuselage Finish carving out cowl interior until has average thick ness about 46 Drill hole piece fuel tubing attached Continued page 137 34 Model Aviation Tall surfaces have light structures generous area good performance control Flap pushrod connects plywood horn Only very slight down setting recommended others can enjoy fellow club members added installation Bridi 40-powered Loadmaster does beautiful job launching everything up through Oly us club now loaded two glider launchers went through three different versions before arriving present system first thing youll note triple tail first Tele master strictly stock tail sections larger gliders interfered fin rudder T cut center fin rudder added two outboard fins rudders now can launch just about anything Telemaster will handle Two-Meter jobs original center fin Flight characteristics seem bit improved triple tailjust fun flying no glider Originally powered K&B 40 did satisfactory job George goes larger gliders have considerably weight drag took couple circles get altitude now use 05 50 can handle anything quite easily other thing may notice photos dual truck-like tires glidertowing requirement flying field has about 2 fine silt top plane glider used mire down during taxi takeoff Although dual wheels add weight solve ground problems Incidentally just take off four wire parts plane goes back normal photos taken various club members have no camera George thank country full special airplanes imaglnation plethora things wonderful projects ingenious ideas Too us labor under superficial delusion RC forever 50-in plane 40 englne look ads reassures us however us time evolve manner things kinds airplanes Variety spice life Life hobby terms becomes dreary avocation Folks like George keep evergreen dont have build eight-engined Spruce Goose hang onwhat encore early 60s Phil Kraft designed Ugly Stik published Grid Leaks thought Phil daftand frankly Stik stank ice Now 35 years later like would build remarkable-performing allaround ship kitted infinite variations probably built greater numbers other RC earth Variety just around corner anyone things like yours George remind us man must create fulfilled Modeling like George Thank Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talltagain am now receiving some unusually difficult questions obvious impor tance ask letters outside normal field expertise writers state seem know answers dont knowledge Electrics RC Scale etc badly limited compared experience specialist columnists like Kopski Wischer will far better served such matters always addressing special columnist choice other magazines maga zine addresses ends col umns will take questions relating own planes projects refer deep stuff Normal mall always welcome essential continued prosperity fun column Henry T/Thomas Continued page 34 overflow tube beneath engine Drill another hole oil drain through cowl bottom rear Cut open top cowl provide access engine Finish shaping cowl fit flush against spinner leave clearance spring starter Block-sand cowl blend smoothly firewall used buty rate dope fuel-proof firewall cowl interior After much flying oil penetrated areas advise epoxy coating better durability Covering Take time thoroughly finesand entire model inspect uneven seams dents blemishes Go over Elmers spaclding paste dries quickly will easily cover areas Fine-sand filled places go over entire structure tac cloth remove dust grit particles recommend MonoKote its strength Cover fuselage sides first tacking MonoKote edges little reduced heat iron smooth down Let covering lap around edges about 1/~ Next cover top bottom trimming covering flush edges Cover stabilizer except joins fuselage fin Cover bottom surfaces first trimming edges flush top covering can lap around edges bit Epoxy stabilizer fuselage sight ing across fuselage top make sure alignment Add small strips pieces MonoKote cover assembly joints Cover fin ruddr similarly Since elevators tapered thinly soft material take care covering Cover bottom surfaces first trimming edges flush elevator may curl bit bottom covered will tend straighten top covering goes Lap edges under slightly point elevator horn mounted extending bolts cut ground off flush Join elevator stabilizer MonoKote hinge applying first nar row strip lower surfaces V raising elevator adhering film top strip flush slight clearance should provided prevent binding horizontal tail must completely mounted before fin can firmly ce mented place centerline Add MonoKote strips lap fin sta bilizer joint Carefully mark three hinge locations fin rudder drill holes accommodate hinge points Also drill hole tail wheel wire extension enters rudder near bottom Glue hinge points place moving rudder often glue sets Mount rudder horn grind extending mount ing bolts off flush Cover lower wing urfaces first Contiiued page 140 4Ye4//V R/C SPORT SHORT KITS THESE HIGH PERFORMANCE KNOCK AROUND FLYING MACHINES ARE EASY TO BUILD AND FUN TO FLY THEY ARE DESIGNED WITH PLENTY OF WING AND TAIL AREA FOR POSITIVE HIGH AND LOW SPEED CONTROL WE USE STRAIGHT FORWARD QUICK AND STURDY CONSTRUCTION THAT MAKES SENSE SHORT KITS INCLUDE PRECISION CUT FOAM WING CORES ABS HIGH INPACT FORMED COWLING CLEAR FORMED CANOPY WITH FRAMEWORK DETAIL STRONG FORMED STEEL ENGINE MOUNT EASY TO FOLLOW PLANS WITH CONSTRUCTION DETAILS AND ALL NECESSARY TEMPLATES PRE-CUT PLYWOOD FIREWALL LANDING GEAR BLOCKS STRAPS & SCREWS BILL OF MATERIALS NO BALSA INCLUDED PRICE PER KIT $2695TWO FOR $5000 WORLD WAR II FIGHTER SERIES JAPANESE A6M2 ZERO SPAN 544-CHANNEL 29 TO 45 ENGINE 4 LBS AMERICAN P-40 TOMAHAWK 29 TO 45 ENGINE SPAN 554-CHANNEL4 LBS GERMAN FW-19029 45 ENGINE SPAN 544-CHANNEL4 LBS ITALIAN c202 FOLGORE29 TO 45 ENGINE SPAN 544-CHANNEL4 LBS ORDERING SEND CHECK OR MONEY ORDER FOR REGUIRED AMOUNT PLUS $450 POSTAGE PER KIT CANADIANS ADD $650 TO WING MFG PO BOX 33 CRYSTAL LAKE IL 60014 ILLINOIS RESIDENTS ADD 6% SALES TAX ALL ORDERS MUST BE IN US FUNDS SEND $350 FOR PRODUCT CATALOG DESCRIBING OUR COMPLETE LINE OF FOAM CORE REPLACEMENT WINGS ACCESSORIES KITS TOOLS AND MUCH MORE PHONE 815 459-0417 FOR FAST COD SERVICE BYMF6 QUALITY PRODUCTS SINCE 1964 June1986 137 Chipship 90 80 span 1/5 scale $12995 Monocoupe D-145 94 span 12 lbs $17995 Henry Haighs Super Star 84 span 11-14 lbs $17995 ZIin Z5OL 92 span 19-21 lbs $20995 Piper PA-17 Vagabond 84 span 10 lbs $15995 Super Fli 92 span 19-21 lbs $18995 New Kit Mongster 52 span 12A lbs large 2-4 cycle eng $7995 Tejiwbeel Assemblies 3-8 lbs$1095 4-9 lbs$1295 10-18 lbs$1495 10 lbs & up$1595 Universal Windshield different size wind shields can cut 6 bubble Big Horns 2sizes-4 &6 horn offset direct hookup pushrod 3/32 rod welded horn Prop Nuts available size engine Examples Super 17gm 2000 2500 3000 others 08 108 other sizes Salto sizes etc Manufacturers Fast Tape Fast Threads 1/4 Scale Pilots Send $1 fora Oh omplete Catalog 11376 Ridgeway Rd Kensington OH 44427 216-223-1950 Henry T/Thomas Continued page 137 halves upsioping tip areas separate pieces MonoKote Trim edges flush Cover wing top surfaces halves single piece Mono Kote lapping edges slightly wing flaps having sanded smoothly fitted neatly should have tA plywood horns epoxied lower surfaces Fair spackling com pound sand Cover lower flap surfaces first Trim edges flush cover top surfaces edges lapped Flap hinges MonoKote assembled sim ilarly elevator hinge except flush surface now bottom Fittings using flaps building wing should have installed small spruce pine blocks alongside rib accept screws holding flap pushrod Solder thin wire loop end pushrod meets wing surface Attach washers small wood screws Adjust pushrod length neutral flap setting turning devises flaps can lowered Using lengths threaded rod fit screw ends inner Sullivan rods adjust length control surfaces will neutral Goldberg Du-Bro devises screwed onto op posite ends After installing receiver foam rubber padding mounting servos previously described screw metal rods front ends rudder elevator flex-rods use Goldberg Du-Bro adjustable fittings servo arms Wrap 500 mAh Ni-Cd battery foam rubber padding position behind firewall holding forward po sition rolled foam rubber pad stuffed behind Small hooks epoxied inside fuselage either side battery bottom corners anchor rubberbands set se cures battery other holds windshield-turtledeck unit place cowling cut apart carve out interior now cemented 555 55t SP S 06 Sso BENTOM- BROWN JR CAMPBELLfl COMET- COVERITE COX DUBRO EASY BUILT MODELS ENVA- FAI FLYLINE POX- GOLDBERG GOLDEN AGE REPRO GENE DUBOtS -GUILLOW- K&B K&S L R MRC OS MAX PACTRA- PECK-POLYMER PERFECT R N MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER O TOP FLITE- TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Send S 100 Caph Check Stampe n,r 44 page tabloid aiae DISCOUNT Catalog 900 illustrationsover 700 Kits choose MAILORDER PHONEORDER IN STORE PENN VALLEY HOllY CENTER N7 Main St LansdaluYa 19446 back together smoothed spackling paste sanded covered Mono Kotesplicing necessary around com pound curves considered using screws bolts secure cowl decided instead use strips MonoKote conceals seam between cowl fuselage light strong may easily peeled off remove cowl cleaning engine work Just use bits masking tape position cowl iron -in strips MonoKote small pieces have removed cowl five six times years flying method works just fine Decorations may cut MonoKote ironed place curved edges between colors wing stabilizer done first making curved pattern file folder material Using stack newspaper cutting base curved edges MonoKote trimmed against pattern sharp * 11 X Acto blade curved trim strips cut same pattern Black MonoKote added wind shield used side windows Black silver MonoKote stripes along fuselage sides completed simple decorations Flying Henry T should hang level lifted fingertips held under wing spar location necessary add small lead weights nose tail bring model balance View model angles check warps misalignment Fortunately use heat gun helping hands friend will make easy unwarp wing tail surface needed Flown spinner afterthought model performed fine Grish 6-3 plastic prop gray Cox 6-3 about equal perhaps superior Ace spinner used have also successfully flown aGrish 63 three-blade plastic prop several handcarved ones Some pictures show large laminated prop carved wal nut maple About 6 dia large 049 prop cuts rpm somewhat produces good thrust seems extend Continued page 142 140 Model Aviation GOOD NEWS CONTEST PILOTS AMA number single decal Ready apply AMAOOOOOO 1 Black letters clw plastic peel & stick INCLUDES FOR $ 11pgaTAGEKANDuNO CUSTOM LABELS 2711 WOblspo Cr Mesa Az 85202 602 8396357 9 Munson Avenue P C MODEL SUPPLY Bethany CT 06525 203 393-2934 Flight-Proven DesignsSend Brochure Balsa ConstructIon 5-6 lbs Cessna 150 40 Powered 62 Easy Const uction 10-15 brat Stable Fliers Mooney 40 Powered 62Scale Its Appearance Slow Flying Capabilities Cherokee 40 Powered 60 9 ea plus $250 UP5 Contest Proven place Cherokee Scale2OO~ plus 800 shipping Ken Barnes Cessna 15025 Powered 5038 plus $250 upS Firemaster Bipe5667 lbs 80 Powered 6996 Introductory Pricel Pack Kat 25 powered sport flyer low w ng span 44 Intro Price $2600 MasterCard Coming Seen 60 Powered Pattern ShipsDealers Invited MASTER AIRSCREW Z~RAIR REW 12x8 Folder1195 15x12 Folder .. 1295 05 Direct Drive Prop Adapter395 Available thru Dealer WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 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Allow 3meeke chesktocleer U length engine run given amount fuel laminations made Elmers woodworking glue After carving sanding prop rubbed-on coat clear dope used seal After rubbing down steel wool finished clear polyurethane spray can final balance sprayed little finish onto lighter blade beginner get experienced RC flier test-fly model First check flight pack battery sufficient charge see controls work freely respond correctly radio signals Fill tank Cox fuel fire up engine bring peak rpm richen needle valve just trifle Hand-launch model gently shoulder height level attitude directly wind running few steps Later after needed trimming has done can launch flat-footed Im mediately make necessary transmitter trim adjustments two models flew virtually no trimming needed model flies smoothly climbs well responsive control movements loops easily will spin stalled given full-left full-up control Recovery immediate controls neutralized proper trim transmitter Henry T flies hands-off Takeoffs landings particularly enjoyable because model tracks straight little tendency veer ground loop fly buoyant air prepared long glide extended soaring try fly model misaligned warped surface balance point CG rearward spar location cautious use down-flap settingsuse sparingly Several friends have discussed building enlarged versions model usually 6-ft-span size 15 engine writing own preference something larger would near-6-ft-span version altered airfoil having shallow convex lower surface operable flaps ailerons 40-size four-stroke engine Henry T has given lots pleas ure hours relaxed air time abso lutely minimum cost decide build good luck pleasant flying Radio Technique/Myers Continued page 37 Carl Goldberg Bob Novak Descriptions honorees accomplishments presented article November 1985 issue Flying Models page 32 et seq award memorializes Howard McEntee great early creators RC hobby Beginning articles single-channel RC 27255 MHz published Air Trails early 1950s continuing column American Air craft Modeller till time death summer 1972 Howard McEntee patiently educated whole generation modelers including Howard became famous publishing designs transmitters receivers actuators etc worked Radio Tech nique modeled anything modeled Howards writings award given have made significant contribution RC hobby Looking names above wonder what have contributed deserve honor best can figure 10 years have covered lot subjects have thank letters experts novators have shared knowledge could give accurate timely informa tion Carl Wheeley Bill Winter Ross McMullen giving wide latitude pick ing subjects column Bob Aberle ing friend critic needed John Worth advice Good Lord putting position write could use particular education experiences advantage examining understanding RC problems write about humbly thank Bob Foshay Mrs Clark WRAMs honor George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Electric Condor/deBolt Continued page 40 motor on-off microswitch oper ated simple cam arrangement offers large dead band eliminating need precise finicky adjustments original cam made sheet alumi num 1/5$ ply would work well cam servo locate switch plywood correct operation oc 142 Model Aviation HARRYS WHEEL COLLAR WRENCH hardened steel FOR 15 AXLES 5/32 AXLES LARGER AXlES S279 EACH HARRY B HIGLEY 8 SONS INC p o Box 532 GLENWOOD ILL 60425 U miJu ml i ICI