Terrible Coupe four-year string victories model has proven itself bestever designs Coupe dHiver modeling EChuck Markos REGARDLESS its name Terrible Coupe very good model airplane visiting French modeler seeing fly de lightedily exciamed Te rri ble French way saying terrific name stuck Coming Frenchman high praise indeed since Coupe dHiver has described national passion French Free Flighters Please dont conjecture gave model name intended discourage others building it has successful tactic would much too transparentthose interested flying Coupe dHiver class surely know already model has taken first place its event four consecutive Nats 19821985 70-gram Coupe dHiver rule reinstated world outside France much discussion merit rule change modeling press indicated French considered two minutes less challenging 70-gram Coupe Others made vague ref erences continental air being different US variety French Coupes larger American ones big slow-rpm props fact prop runs reported have excess two 74 Model Aviation h 4 Above authors lovelywife hisTerrible Coupe Below Bright sunlight shows off internal structure thlswlnnerof foursuccessive NatsChampionshlps has just named National Free Flight Society Best Small Rubber Model 1986 Left Breakapart construction makes easy transport large model Right Disassembled fits 25-In box shipping minutes 100-gram models reasoned big Coupe built 1979 French style kept 70 grams would have no trouble 120-second max still air Naturally expected test model against its European competition corporated break-apart wing fuselage easier shipping 70-gram model welcome French competitions luck would have English holding annual Coupe dHiver Championship under both sets rules first try weighed 85 grams built required six additional grams nose ballast So much England 70-gram event Before finally lost woods Westover AFB 1983 model weighed 95 grams twice US Coupe dHiver champion never recovered never campaigned France second model weighed 72 grams ready-to-fly took first-place honors Reno Nats 1984 soon after too lost stab de thermalizer DT failed during local contest present model weighs 75 grams incorporates pop-off wing DTing well traditional stab DTing Wing DT alone sure bring model down often causes fuselage descend vertically DTing stab well alleviates prob lem reduces likelihood damage fraglle front end Since 1980 three models have executed 26 consecutive 1 20-seoond maxes Nats competitions Most still air before 10 am theyve also proved themselves good wind thermal fliers taking home two wins windy Westover Nats Coupe Terrible indeed following construction notes based questions modelers often ask contests Additional comments made features techniques standard type modeling Propeller hub fabricated tempered aluminum using drill press Dremel tool assorted files hack saw fine-toothed blade difficult might first appear Fit brass tubing liners hinge shaft holes vise Make tubing slightly overlong use pressure vise create slight distortion liner securing place Bend /32 music-wire hinges accept /3z brass tubing Flattening wire slightly Dremel tool will result better fit tubing make soldering easier Wrap copper wire add flux solder Sta-Brite silver solder maintain 1800 alignment sol dering placed lengths /16 OD alumi num tubing brass sockets Fine adjustment alignment accom plished either filing away part copper wire solder adding 015 brass shims solder filing best hubs shaft hinge holes exactly perpendicular parallel puts bias fold prop blades fit snuggly against fuselage Similar hubs may pur chased FAI Model Supply Jim Crockett Replicas form helical pitch prop can carved clear pine using templates plans carving quite easy November 1986 75 Fuselage layout stick pins through longeronsi scraps left pinned place make both sides build identically Fuselage construction detail Use tern poraryformer angle irons rubberbands keepthe parts square until glue isdry iii very importantto measure cut crosspieces accurately avoid wavy longerons Left airfoil template thats cut 1/16 plywood Note grain runs see text Center Note balsa undercamber pat tern mates airfoil template cut 1/16 sheet Right vertical-grain spar webs balsa holder keep straight Above soon-tO-be propeller blade sits rubberbanded laminating form just before goes 2000 oven Right prop pitch jig perpendicular 1/1 6-in wire triangles sure finished both blades have exactly same pitch wood rasp used coarse work left small amount camber form though Coupe dHiver fliers prefer flat-bottomed section props blades laminate Az hard sheet balsa 6-oz glass cloth epoxy A6 sheet balsa Soak balsa blanks water lash lightly form rubberbands Bake blade pair oven set 2000 half hour cooled room temperature remove form give inside surface blank very thin coat slow-drying epoxy like Hobbypoxy Formula 1 Complete sandwich glass cloth lash pitch form return 2000 oven 30 minutes heat will reduce vis cosity epoxy few seconds allow penetrate wood pores before sets up Protect form layer Saran Wrap similar plastic wrap step make sure oven temperature does get above 2000 plastic wrap will melt gluing prop blade form Finish blades sandpaper glue Y16 birch-dowel shaft 5mm epoxy Use aug shown plans set pitch blade oorrect glue prop shaft brass socket cyanoacrylate CyA Drill V32 hole through socket shaft insert hooks rubberband folds prop Wing Several building aids used make wing construction easier ensure fidelity plan plywood rib tem plate guides single-edged razor blade along airfoil assures uniform ribs no need draw lines balsa sheet Make sure exposed grain plywood perpendicular chord axis Though harder prepare template manner orientation keeps razor blade cutting template first cut undercamber Match 76 Model Aviation Left Nose block dural winding hook Screw sets stop angle folding prop Right Hand-machined aluminum prop hub Textcontains detallsforsimple construction Winding tools Torque meter uses 3/64 wire Modified hand drill has 41 ratio Wind ing tube protects fuselage broken motor explosions Long wire hook used transfer dural S-hook propeller Left aluminum wing joiner tube seen bottom Block wing up correct dihedral workbench glue aluminum tube place packed scrap drythetube issawn half Anotherplece tubing outsidediametermatching larger inside diameter joins halves Right rubberband center keeps two panels pulled together necessary incorporate guide pins wing halves hold alignment accomplished wing strapped fuselage Left dual release DT fuse Band stab apiece cut balloon make burn through first Middle DTsetup forthe rear-pivot wing Note howthe rubberband hook raised ethe surfaceto increase leverage Right Thewingtip line hold Whenthewing DTs comes completely off fuselage string wing tip fuselage keepsthe two pieces being separated during descent Full-Size Plans Available. Page 180 DIHEDRAL BREAK 29 532 LEFT WING30IOBABR 1016 SLSSETSCLS, AT ROOTERS 032 VERTSAE GRAil WEB 0ly32Q3~pxI HARE ESRaINWASH-IN DO STRINOTO TIPREWINS 020MW lOOKSEES FROM RN SWTVEL 000 NESC WIRE -3032 5 HR II I0WDSBBADO -ulV _______________________________________________ 1~TTII TURK ____________________ ___________________________________________ SRBW\F322STEKTNTEHSA&BASRERSS0BHAASC 3DOSTEET\ 11411....CK035 SISEET EASE rSWBBLLBACE,----R-,-Rm-------s 255 0IVI-~OIl#lGV1/#INSCSIBIW30TF VIV2SBW HBBK ALRM30MW063030STAR 5-0 ROOK 9032ALLM 50550 SOLAR BBG 7032OSOMASS ThBK BRAID OCER STRACORT AINOSUBEEB mRAHO EESI 3/K HARDWOOD032PLR4AC RIBS 1032NEE DOWELREARER BANK 7- PEL 3032 BIB0IKSO EVE SHRED DOUBLER,y3232SQ LE SRRBLH DOFLAR BARED TORT WiNS ROES SOWN WE 0 DETAIL RNEIBKTE322 3232 512 BEG 3FER SIKEERAL BREAK1032 PLY RICE NB EARNS ESSE VIEW TRANS ESSE VIEW TOP V EW IORVOSGEDP OCR FORM CARVE 50CR ES TOP HEW FIRST -1032PLVORES BAREUSE DEARREABES TV RARE CE TO KSALSS JSCERERRERVERB RIB TEMPLATE OLE GAVEL SENEOCK TASKS AREOL 030RAREVEMEBAI ORVISBC-SWABS PROPELLER BLADE ABISADE OF ROBOC I& ORWASA-BAT 306 303055V30B&SAEL BARD IBOTREBI LEER LJ 1032 PLYWOOD OIOGRODO MED30 BALSA FLLOR BALBA -OTDOD ROLESS OLARsO SEBUCE CAP506 SHEET GAlS STOOK NO B REARER BAND-~ RD FlOE REElS THROUBA SO B ROBSER PIVOTS THE AND BR N 0CC REUBBO CERBECTED TV FSECAGE BY V SCRINS HOOK 102 SHEET V-K IS S TOOK B 0345K TERRIBLE COUPE DESIGNED RB CHARLES RARKOS EWAWN RD GLENN C ACEDERSCBS undercamber cut slice off top camber Make sure ribs least longer required also 2 deeper TE section requires much easier remove excess add onto rib too small Hot-wire-cut sanding block Sty rofoam match wing undercamber affix #100-grit aluminum oxide paper latex contact cement use shape ribs second Styrofoam block also cut help align ribs cutting notches Sandpaper notch cutters prepared gluing #1 00-grit paper hard balsa widths required notches Check stiffness and/or wekht un-notched ribs Place lighter ones extremities heavier ones toward center helps order ribs writing number before stacking cutting notches isnt done rib may placed out order will divert notch parallel resulting unsightly wavy spars unwanted warps Stack numbered ribs Styrofoam form cut notches use balsa stop notch cutter set A6in depth notches cut hold stack together strip balsa placed notches square off LE portion ribs Drill pilot holes center two ribs accept wing joiner sleeve notched TE packed up lOB angle ribs trimmed glued TE LE No spars yet Make dihedral joints add lower %2 x 1/16 spar Place 1/32 sheet balsa webs grain aligned vertically between ribs Use notch cutter carefully set depth wing joiner set length % OD aluminum tubing pilot holes adjust dihedral h-in center section Glue tube place pack scrap balsa form box Cut tube slip 1/32 plywood cap ribs gussets TE deserve special Contjnupdnn 172 Left Alternate dual-release DT setup one-piece wing leading edge pivot Right rubberband helper used swing wing away fuselage Using pop-off wing may seem drastic normal stab DTing often enough strong thermal November 1986 77 301K SEEESRT 5032BVIK-IOIKSHT RWA WAS SEAR TIP WASH-OS 3016 332B3OR BEE C-ARABS N IDEWINS flSER-32RAVMTLBE 301K ORES BRED ElY RIGHT WING7-3011 SQ MER 2 -5032B 556 WRAR TOPS ROTTAR AI/ VI /// Stabilizer rear hold-down uses nylon tubing Spruce cap isto strengthen sub-rudder 1-KIIm0oEhnnoH0oExU 3rd flnnuI STPTIO SHOW & SWflP SHOP Pipopoft Ships Boats Cons 4Tophies/wopds Ttdo Exhibitors Chorlotte mochondise mct 2S00 E Ineenence BIu& ChoNotte flC THANKSGIVING WEEKEND flowembe IS5 * C lay Information Contact CAROLINA HOBBY EXPO 3452 ODELL SCHOOL RDCONCORD NC 28025 704-786-8373 add additional rudder fuselage get turn wanted once adjusted plane flew exceptionally well evidenced flight time NFFS National Free Flight Society guru Tony Italiano second POP 933 followed Vito Gaglianos 850 Dad Gagliano may want check son Charles some tips flying event David Brown lone Junior entrant posted time 324 positive spinoff what essential ly lackluster Indoor contest presence TV film crew National Geographic captured some representative samples Indoor flight film crew erected large black velveteen backarop filmed several models flight repeatedly passed majes tically front blacked-out set visual effect us watching laborious process stunning Lit front sides microfilm ships Tony Becker Richard Doig scattered flashes ralnbow colors turn prop new angle climb turn Scheduled airing late fall possibly October November National Geograph ics Explorer program segment now tentatively titled Flying Fanatics may very aptiy describe us attended years Indoor Nats Lake Charles Baby Bird/Dixon Continued page 73 Trimming flying Follow engine manufacturers instructions get fa miliar operating engine test stand Once installed model tune maximum power developed nose model pointed straight up will result slightly richer setting level flight engine overcompressed slightly run will steadier undercompressed fuel will burn wont have flameout easily Once engine properly broken will seldom need touch com pression screw find quicker starts possible opening needle valve exactly half-turn flight setting closing over five seconds engine warms up No priming needed generally start engine model upright choking finger two three flips Usually another two three flips takes get running Line length 40 ftusing Sig 008 cable lines cut down 52-ft package length needed exactly 1 ox tip weight model try fly model typical Dacron lines use Perfect handle modified coat hanger wire line carrier la Rich Porter line spacing can adjusted Ive settled spacing 3 propeller shown photos fiberglass Bolly designed originally Goodyear FM Team Racing has 68 diameter 49 pitch Ive also good success Graupner nylon/glass 7 x 5 Believe right sizes PAW 049 suspect Tee Dee would use 6 x 3 5 x 4 prop Lap speed other models will faster may accustomed Reynolds number effect again should pose no problem Fuel use Aero-Dyne diesel fuel right out can local hobby shop run Free Flight Old-Timer enthusiast stocks sort thing fortunate mix own per instructions engine manual myself have tried Davis Diesel fuel should work fine has sufficient castor oil lubri cation PAW recommends running castor agree based much ex perience lapped plain-bearing glow engines Manufactured diesel fuel appears ex pensive use er flight Its ether content makes highly evapo rative its best buy pint halfpint quantities Likewise mix own keep quantities small will also need switch neoprene fuel lines diesel fuel will cause silicone lines swell slip off fittings Hope enjoy Baby Bird Any questions comments can addressed care magazine Fly safely Terrible Coupe/Markos Continued page 77 mention Pay attention wood grain gusset needs hand fitted perfect match TE Final sanding 172Model Aviation rmeet Ou ecioI Oues~ WORLD WAR H FIGHTER ACE Robert S Johnson 028 Vectones0 th FIGHTER GROUP 1 Connectors Designed anything electrical requiring quick disconnects Ideal Power Pack Connector electric planes cars boats Designed high vibrafion environment Cycled ten Thousand times electrical failure dJ Anderson Power Products Inc 010 No 0262201, 010 No 0025154 SORRY NO PERSONAL CHECKS OR COD ORDERS Only certified checks money orders accepted Minimum order $1000 three packages 4 Powerpoles $300 per package plus $100 ship ping handling CT residents add 75/ sales tax Prices subject change notice Dealer Inquiries Invited further information dealer prices send SASE Bus Card SERMOS RIC SNAP CONNECTORS Cedar Corners Station Box 16787 Stamford CT 06905 Talk difference Torque Other manufacturers build engines CAN also used OPS builds engine specificially 60 helicoptor use Thats right OPS Super 60 SLA AC #8308 specificially built high torque will put sparkle helicoptors performance its specially balanced crank its five intake port side exhaust porting have winner See Local Hobby Shop SThe Part Comfem %n*o4 /1cC PO Box 26247 Orleans LA 70186 242-5967 wing uses undercamber sanding block clamped vise Scrub wing block short strokes remove uneven construction Covering finishing Give frame work two coats dope wherever will come contact covering Use nitrate dope have otherwise use Sig Lite Coat butyrate Japanese tissue available Peck-Polymers OldTimers Model Supply variety colors inspired build competition Free Flight model should already know tissue has grain direction Cover bottom camber wing first laying tissue grain spanwise brushing thinner through tissue first spar ribs Rub lightly finger push tissue close contact framework dope still soft perimeter framework next same method Trim excess tissue flush TE sharp razor blade leave approximately Vi6 leading edge curl around top side Seal edges dope using fine brush keep covering pulling away undercamber after shrinking doping give junctures ribs tissue coat dope before covering top camber fuselage covered two layers tissue cross-grained 450 angle axis motor box front portion attempt apply tissue biased grain tail boom severe warping will occur covering water-sprayed shrunk given two coats thinned dope super-light model requires spray doping Only three grams weight added finishing model Flying Several checks need made before heading out first flight wing should have slight washin inner right panel both outer panels should washed out center gravity CO 10-gram motor place should indicated plans Align tri fins dead straight ahead way check alignment establish perpendicular reference lines tiled floor Down right thrust should built according plans Test-glide model obtain smooth right-hand turn using up h-in stabilizer tilt sub-rudder adjustment stabilizer incidence order Always wind winding tube between place protect fuselage exploding motors Top performance means maximum turns lots Pirelli have motors blown have flown model eight strands 1981 4mm Pirelli six strands 1979 6mm Pirelli 10 strands 1981 -in FAI Supply rubber 70-7 5 grams can exceed two-minute dead-air times motors best combination eight strands 4mm Pirelli wound torque 1500 gramcentimeters up 520 turns never got e e oIeVS y0t3 mber 1986 173 Al tAOS Sated catS~ IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines iers bolt directly engine ust tube points bottom side cowi cone exhsust extension tubing inciuded Easily made produce smoke jIi U m m 164 School St Daly City CA 94014 415 756-3400 b 7_ / I-0 three flights motor used contest flying first powered flight should wound approximately one-third maximum turns climb should right adjust thrust changes stalling climb should corrected downthrust right thrust before adding turns Fine ad justments will become necessary power added flying conditions change Once testingthe model Reno Nats knocked tail boom right-hand left adjustment launching full power model flew perfectly left thermaled left glide big slow-moving model like susceptible trim changes smaller faster models very easy adjust forgiving mistakes DT arrangement hooks rub berbands has worked over since plans drawn objective positive action less compli cated setup Four methods investi gated two successful ones illustrated photos Both work like stab DT limit string like best pivots wing LE requires LE mount similar stab DT used one-piece wing other method TE pivot requires round ing reinforcing TE using hook hold rubberband least h-in above wing enough leverage make wing pivot fuselage two sets dual hooks help hold two-piece wing together flight Questions oomments Send SASE Chuck Markos 655 Carlisle Ave Deerfield IL 60015 Wakefield/Oldenkamp Continued page 78 30% wing formula yielded stubby somewhat fragile airplanes rather spindly undercarts bamboo bits huge fins props Suitably trimmed however andwith mod ern rubber strip outstanding performers ROG feature makes things very interesting especially done improp erly say least Few us admit ROG something miss lot Old174 Model Aviation VINTAGE R-C LAN EEII7!SOLiDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS11 PLAStIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE 48111 USA -a 8 Bottom Tube JT-ENBENVA 60-80-90-120 40 UP/INV ENG2700 JT-ENSENVA 60-80-90-120 40 UP/INVSIDE ENG2700 JT-ERBENYA R 120 FO UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FO UP/INVERTED/SIDE ENG3000 JT-61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-615MX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 80-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M28MAX PS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX FS 120 UP/INVERTED/SIDE ENGINE2700 JT-56BSAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-565SAIlO PA 65 UP/INVERTED/SIDE ENGINE2000 JT-528SAnD FA 120 UPRIGHT/INVERTED ENGINE2700 JT-525SAITO FA 120 UP/INVERTED/SIDE ENGINE2700 -Y S Side Tube ovIe yo hoBby shop OBDER DIRECT kawnedate sE*jmert Check MO VIacs MC COD accepted Add 5250 UPS 52fl0 COI 6% ads ta C raddmW knew forgot something. MY PLANE
Edition: Model Aviation - 1986/11
Page Numbers: 74, 75, 76, 77, 172, 173, 174
Terrible Coupe four-year string victories model has proven itself bestever designs Coupe dHiver modeling EChuck Markos REGARDLESS its name Terrible Coupe very good model airplane visiting French modeler seeing fly de lightedily exciamed Te rri ble French way saying terrific name stuck Coming Frenchman high praise indeed since Coupe dHiver has described national passion French Free Flighters Please dont conjecture gave model name intended discourage others building it has successful tactic would much too transparentthose interested flying Coupe dHiver class surely know already model has taken first place its event four consecutive Nats 19821985 70-gram Coupe dHiver rule reinstated world outside France much discussion merit rule change modeling press indicated French considered two minutes less challenging 70-gram Coupe Others made vague ref erences continental air being different US variety French Coupes larger American ones big slow-rpm props fact prop runs reported have excess two 74 Model Aviation h 4 Above authors lovelywife hisTerrible Coupe Below Bright sunlight shows off internal structure thlswlnnerof foursuccessive NatsChampionshlps has just named National Free Flight Society Best Small Rubber Model 1986 Left Breakapart construction makes easy transport large model Right Disassembled fits 25-In box shipping minutes 100-gram models reasoned big Coupe built 1979 French style kept 70 grams would have no trouble 120-second max still air Naturally expected test model against its European competition corporated break-apart wing fuselage easier shipping 70-gram model welcome French competitions luck would have English holding annual Coupe dHiver Championship under both sets rules first try weighed 85 grams built required six additional grams nose ballast So much England 70-gram event Before finally lost woods Westover AFB 1983 model weighed 95 grams twice US Coupe dHiver champion never recovered never campaigned France second model weighed 72 grams ready-to-fly took first-place honors Reno Nats 1984 soon after too lost stab de thermalizer DT failed during local contest present model weighs 75 grams incorporates pop-off wing DTing well traditional stab DTing Wing DT alone sure bring model down often causes fuselage descend vertically DTing stab well alleviates prob lem reduces likelihood damage fraglle front end Since 1980 three models have executed 26 consecutive 1 20-seoond maxes Nats competitions Most still air before 10 am theyve also proved themselves good wind thermal fliers taking home two wins windy Westover Nats Coupe Terrible indeed following construction notes based questions modelers often ask contests Additional comments made features techniques standard type modeling Propeller hub fabricated tempered aluminum using drill press Dremel tool assorted files hack saw fine-toothed blade difficult might first appear Fit brass tubing liners hinge shaft holes vise Make tubing slightly overlong use pressure vise create slight distortion liner securing place Bend /32 music-wire hinges accept /3z brass tubing Flattening wire slightly Dremel tool will result better fit tubing make soldering easier Wrap copper wire add flux solder Sta-Brite silver solder maintain 1800 alignment sol dering placed lengths /16 OD alumi num tubing brass sockets Fine adjustment alignment accom plished either filing away part copper wire solder adding 015 brass shims solder filing best hubs shaft hinge holes exactly perpendicular parallel puts bias fold prop blades fit snuggly against fuselage Similar hubs may pur chased FAI Model Supply Jim Crockett Replicas form helical pitch prop can carved clear pine using templates plans carving quite easy November 1986 75 Fuselage layout stick pins through longeronsi scraps left pinned place make both sides build identically Fuselage construction detail Use tern poraryformer angle irons rubberbands keepthe parts square until glue isdry iii very importantto measure cut crosspieces accurately avoid wavy longerons Left airfoil template thats cut 1/16 plywood Note grain runs see text Center Note balsa undercamber pat tern mates airfoil template cut 1/16 sheet Right vertical-grain spar webs balsa holder keep straight Above soon-tO-be propeller blade sits rubberbanded laminating form just before goes 2000 oven Right prop pitch jig perpendicular 1/1 6-in wire triangles sure finished both blades have exactly same pitch wood rasp used coarse work left small amount camber form though Coupe dHiver fliers prefer flat-bottomed section props blades laminate Az hard sheet balsa 6-oz glass cloth epoxy A6 sheet balsa Soak balsa blanks water lash lightly form rubberbands Bake blade pair oven set 2000 half hour cooled room temperature remove form give inside surface blank very thin coat slow-drying epoxy like Hobbypoxy Formula 1 Complete sandwich glass cloth lash pitch form return 2000 oven 30 minutes heat will reduce vis cosity epoxy few seconds allow penetrate wood pores before sets up Protect form layer Saran Wrap similar plastic wrap step make sure oven temperature does get above 2000 plastic wrap will melt gluing prop blade form Finish blades sandpaper glue Y16 birch-dowel shaft 5mm epoxy Use aug shown plans set pitch blade oorrect glue prop shaft brass socket cyanoacrylate CyA Drill V32 hole through socket shaft insert hooks rubberband folds prop Wing Several building aids used make wing construction easier ensure fidelity plan plywood rib tem plate guides single-edged razor blade along airfoil assures uniform ribs no need draw lines balsa sheet Make sure exposed grain plywood perpendicular chord axis Though harder prepare template manner orientation keeps razor blade cutting template first cut undercamber Match 76 Model Aviation Left Nose block dural winding hook Screw sets stop angle folding prop Right Hand-machined aluminum prop hub Textcontains detallsforsimple construction Winding tools Torque meter uses 3/64 wire Modified hand drill has 41 ratio Wind ing tube protects fuselage broken motor explosions Long wire hook used transfer dural S-hook propeller Left aluminum wing joiner tube seen bottom Block wing up correct dihedral workbench glue aluminum tube place packed scrap drythetube issawn half Anotherplece tubing outsidediametermatching larger inside diameter joins halves Right rubberband center keeps two panels pulled together necessary incorporate guide pins wing halves hold alignment accomplished wing strapped fuselage Left dual release DT fuse Band stab apiece cut balloon make burn through first Middle DTsetup forthe rear-pivot wing Note howthe rubberband hook raised ethe surfaceto increase leverage Right Thewingtip line hold Whenthewing DTs comes completely off fuselage string wing tip fuselage keepsthe two pieces being separated during descent Full-Size Plans Available. Page 180 DIHEDRAL BREAK 29 532 LEFT WING30IOBABR 1016 SLSSETSCLS, AT ROOTERS 032 VERTSAE GRAil WEB 0ly32Q3~pxI HARE ESRaINWASH-IN DO STRINOTO TIPREWINS 020MW lOOKSEES FROM RN SWTVEL 000 NESC WIRE -3032 5 HR II I0WDSBBADO -ulV _______________________________________________ 1~TTII TURK ____________________ ___________________________________________ SRBW\F322STEKTNTEHSA&BASRERSS0BHAASC 3DOSTEET\ 11411....CK035 SISEET EASE rSWBBLLBACE,----R-,-Rm-------s 255 0IVI-~OIl#lGV1/#INSCSIBIW30TF VIV2SBW HBBK ALRM30MW063030STAR 5-0 ROOK 9032ALLM 50550 SOLAR BBG 7032OSOMASS ThBK BRAID OCER STRACORT AINOSUBEEB mRAHO EESI 3/K HARDWOOD032PLR4AC RIBS 1032NEE DOWELREARER BANK 7- PEL 3032 BIB0IKSO EVE SHRED DOUBLER,y3232SQ LE SRRBLH DOFLAR BARED TORT WiNS ROES SOWN WE 0 DETAIL RNEIBKTE322 3232 512 BEG 3FER SIKEERAL BREAK1032 PLY RICE NB EARNS ESSE VIEW TRANS ESSE VIEW TOP V EW IORVOSGEDP OCR FORM CARVE 50CR ES TOP HEW FIRST -1032PLVORES BAREUSE DEARREABES TV RARE CE TO KSALSS JSCERERRERVERB RIB TEMPLATE OLE GAVEL SENEOCK TASKS AREOL 030RAREVEMEBAI ORVISBC-SWABS PROPELLER BLADE ABISADE OF ROBOC I& ORWASA-BAT 306 303055V30B&SAEL BARD IBOTREBI LEER LJ 1032 PLYWOOD OIOGRODO MED30 BALSA FLLOR BALBA -OTDOD ROLESS OLARsO SEBUCE CAP506 SHEET GAlS STOOK NO B REARER BAND-~ RD FlOE REElS THROUBA SO B ROBSER PIVOTS THE AND BR N 0CC REUBBO CERBECTED TV FSECAGE BY V SCRINS HOOK 102 SHEET V-K IS S TOOK B 0345K TERRIBLE COUPE DESIGNED RB CHARLES RARKOS EWAWN RD GLENN C ACEDERSCBS undercamber cut slice off top camber Make sure ribs least longer required also 2 deeper TE section requires much easier remove excess add onto rib too small Hot-wire-cut sanding block Sty rofoam match wing undercamber affix #100-grit aluminum oxide paper latex contact cement use shape ribs second Styrofoam block also cut help align ribs cutting notches Sandpaper notch cutters prepared gluing #1 00-grit paper hard balsa widths required notches Check stiffness and/or wekht un-notched ribs Place lighter ones extremities heavier ones toward center helps order ribs writing number before stacking cutting notches isnt done rib may placed out order will divert notch parallel resulting unsightly wavy spars unwanted warps Stack numbered ribs Styrofoam form cut notches use balsa stop notch cutter set A6in depth notches cut hold stack together strip balsa placed notches square off LE portion ribs Drill pilot holes center two ribs accept wing joiner sleeve notched TE packed up lOB angle ribs trimmed glued TE LE No spars yet Make dihedral joints add lower %2 x 1/16 spar Place 1/32 sheet balsa webs grain aligned vertically between ribs Use notch cutter carefully set depth wing joiner set length % OD aluminum tubing pilot holes adjust dihedral h-in center section Glue tube place pack scrap balsa form box Cut tube slip 1/32 plywood cap ribs gussets TE deserve special Contjnupdnn 172 Left Alternate dual-release DT setup one-piece wing leading edge pivot Right rubberband helper used swing wing away fuselage Using pop-off wing may seem drastic normal stab DTing often enough strong thermal November 1986 77 301K SEEESRT 5032BVIK-IOIKSHT RWA WAS SEAR TIP WASH-OS 3016 332B3OR BEE C-ARABS N IDEWINS flSER-32RAVMTLBE 301K ORES BRED ElY RIGHT WING7-3011 SQ MER 2 -5032B 556 WRAR TOPS ROTTAR AI/ VI /// Stabilizer rear hold-down uses nylon tubing Spruce cap isto strengthen sub-rudder 1-KIIm0oEhnnoH0oExU 3rd flnnuI STPTIO SHOW & SWflP SHOP Pipopoft Ships Boats Cons 4Tophies/wopds Ttdo Exhibitors Chorlotte mochondise mct 2S00 E Ineenence BIu& ChoNotte flC THANKSGIVING WEEKEND flowembe IS5 * C lay Information Contact CAROLINA HOBBY EXPO 3452 ODELL SCHOOL RDCONCORD NC 28025 704-786-8373 add additional rudder fuselage get turn wanted once adjusted plane flew exceptionally well evidenced flight time NFFS National Free Flight Society guru Tony Italiano second POP 933 followed Vito Gaglianos 850 Dad Gagliano may want check son Charles some tips flying event David Brown lone Junior entrant posted time 324 positive spinoff what essential ly lackluster Indoor contest presence TV film crew National Geographic captured some representative samples Indoor flight film crew erected large black velveteen backarop filmed several models flight repeatedly passed majes tically front blacked-out set visual effect us watching laborious process stunning Lit front sides microfilm ships Tony Becker Richard Doig scattered flashes ralnbow colors turn prop new angle climb turn Scheduled airing late fall possibly October November National Geograph ics Explorer program segment now tentatively titled Flying Fanatics may very aptiy describe us attended years Indoor Nats Lake Charles Baby Bird/Dixon Continued page 73 Trimming flying Follow engine manufacturers instructions get fa miliar operating engine test stand Once installed model tune maximum power developed nose model pointed straight up will result slightly richer setting level flight engine overcompressed slightly run will steadier undercompressed fuel will burn wont have flameout easily Once engine properly broken will seldom need touch com pression screw find quicker starts possible opening needle valve exactly half-turn flight setting closing over five seconds engine warms up No priming needed generally start engine model upright choking finger two three flips Usually another two three flips takes get running Line length 40 ftusing Sig 008 cable lines cut down 52-ft package length needed exactly 1 ox tip weight model try fly model typical Dacron lines use Perfect handle modified coat hanger wire line carrier la Rich Porter line spacing can adjusted Ive settled spacing 3 propeller shown photos fiberglass Bolly designed originally Goodyear FM Team Racing has 68 diameter 49 pitch Ive also good success Graupner nylon/glass 7 x 5 Believe right sizes PAW 049 suspect Tee Dee would use 6 x 3 5 x 4 prop Lap speed other models will faster may accustomed Reynolds number effect again should pose no problem Fuel use Aero-Dyne diesel fuel right out can local hobby shop run Free Flight Old-Timer enthusiast stocks sort thing fortunate mix own per instructions engine manual myself have tried Davis Diesel fuel should work fine has sufficient castor oil lubri cation PAW recommends running castor agree based much ex perience lapped plain-bearing glow engines Manufactured diesel fuel appears ex pensive use er flight Its ether content makes highly evapo rative its best buy pint halfpint quantities Likewise mix own keep quantities small will also need switch neoprene fuel lines diesel fuel will cause silicone lines swell slip off fittings Hope enjoy Baby Bird Any questions comments can addressed care magazine Fly safely Terrible Coupe/Markos Continued page 77 mention Pay attention wood grain gusset needs hand fitted perfect match TE Final sanding 172Model Aviation rmeet Ou ecioI Oues~ WORLD WAR H FIGHTER ACE Robert S Johnson 028 Vectones0 th FIGHTER GROUP 1 Connectors Designed anything electrical requiring quick disconnects Ideal Power Pack Connector electric planes cars boats Designed high vibrafion environment Cycled ten Thousand times electrical failure dJ Anderson Power Products Inc 010 No 0262201, 010 No 0025154 SORRY NO PERSONAL CHECKS OR COD ORDERS Only certified checks money orders accepted Minimum order $1000 three packages 4 Powerpoles $300 per package plus $100 ship ping handling CT residents add 75/ sales tax Prices subject change notice Dealer Inquiries Invited further information dealer prices send SASE Bus Card SERMOS RIC SNAP CONNECTORS Cedar Corners Station Box 16787 Stamford CT 06905 Talk difference Torque Other manufacturers build engines CAN also used OPS builds engine specificially 60 helicoptor use Thats right OPS Super 60 SLA AC #8308 specificially built high torque will put sparkle helicoptors performance its specially balanced crank its five intake port side exhaust porting have winner See Local Hobby Shop SThe Part Comfem %n*o4 /1cC PO Box 26247 Orleans LA 70186 242-5967 wing uses undercamber sanding block clamped vise Scrub wing block short strokes remove uneven construction Covering finishing Give frame work two coats dope wherever will come contact covering Use nitrate dope have otherwise use Sig Lite Coat butyrate Japanese tissue available Peck-Polymers OldTimers Model Supply variety colors inspired build competition Free Flight model should already know tissue has grain direction Cover bottom camber wing first laying tissue grain spanwise brushing thinner through tissue first spar ribs Rub lightly finger push tissue close contact framework dope still soft perimeter framework next same method Trim excess tissue flush TE sharp razor blade leave approximately Vi6 leading edge curl around top side Seal edges dope using fine brush keep covering pulling away undercamber after shrinking doping give junctures ribs tissue coat dope before covering top camber fuselage covered two layers tissue cross-grained 450 angle axis motor box front portion attempt apply tissue biased grain tail boom severe warping will occur covering water-sprayed shrunk given two coats thinned dope super-light model requires spray doping Only three grams weight added finishing model Flying Several checks need made before heading out first flight wing should have slight washin inner right panel both outer panels should washed out center gravity CO 10-gram motor place should indicated plans Align tri fins dead straight ahead way check alignment establish perpendicular reference lines tiled floor Down right thrust should built according plans Test-glide model obtain smooth right-hand turn using up h-in stabilizer tilt sub-rudder adjustment stabilizer incidence order Always wind winding tube between place protect fuselage exploding motors Top performance means maximum turns lots Pirelli have motors blown have flown model eight strands 1981 4mm Pirelli six strands 1979 6mm Pirelli 10 strands 1981 -in FAI Supply rubber 70-7 5 grams can exceed two-minute dead-air times motors best combination eight strands 4mm Pirelli wound torque 1500 gramcentimeters up 520 turns never got e e oIeVS y0t3 mber 1986 173 Al tAOS Sated catS~ IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines iers bolt directly engine ust tube points bottom side cowi cone exhsust extension tubing inciuded Easily made produce smoke jIi U m m 164 School St Daly City CA 94014 415 756-3400 b 7_ / I-0 three flights motor used contest flying first powered flight should wound approximately one-third maximum turns climb should right adjust thrust changes stalling climb should corrected downthrust right thrust before adding turns Fine ad justments will become necessary power added flying conditions change Once testingthe model Reno Nats knocked tail boom right-hand left adjustment launching full power model flew perfectly left thermaled left glide big slow-moving model like susceptible trim changes smaller faster models very easy adjust forgiving mistakes DT arrangement hooks rub berbands has worked over since plans drawn objective positive action less compli cated setup Four methods investi gated two successful ones illustrated photos Both work like stab DT limit string like best pivots wing LE requires LE mount similar stab DT used one-piece wing other method TE pivot requires round ing reinforcing TE using hook hold rubberband least h-in above wing enough leverage make wing pivot fuselage two sets dual hooks help hold two-piece wing together flight Questions oomments Send SASE Chuck Markos 655 Carlisle Ave Deerfield IL 60015 Wakefield/Oldenkamp Continued page 78 30% wing formula yielded stubby somewhat fragile airplanes rather spindly undercarts bamboo bits huge fins props Suitably trimmed however andwith mod ern rubber strip outstanding performers ROG feature makes things very interesting especially done improp erly say least Few us admit ROG something miss lot Old174 Model Aviation VINTAGE R-C LAN EEII7!SOLiDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS11 PLAStIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE 48111 USA -a 8 Bottom Tube JT-ENBENVA 60-80-90-120 40 UP/INV ENG2700 JT-ENSENVA 60-80-90-120 40 UP/INVSIDE ENG2700 JT-ERBENYA R 120 FO UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FO UP/INVERTED/SIDE ENG3000 JT-61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-615MX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 80-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M28MAX PS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX FS 120 UP/INVERTED/SIDE ENGINE2700 JT-56BSAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-565SAIlO PA 65 UP/INVERTED/SIDE ENGINE2000 JT-528SAnD FA 120 UPRIGHT/INVERTED ENGINE2700 JT-525SAITO FA 120 UP/INVERTED/SIDE ENGINE2700 -Y S Side Tube ovIe yo hoBby shop OBDER DIRECT kawnedate sE*jmert Check MO VIacs MC COD accepted Add 5250 UPS 52fl0 COI 6% ads ta C raddmW knew forgot something. MY PLANE
Edition: Model Aviation - 1986/11
Page Numbers: 74, 75, 76, 77, 172, 173, 174
Terrible Coupe four-year string victories model has proven itself bestever designs Coupe dHiver modeling EChuck Markos REGARDLESS its name Terrible Coupe very good model airplane visiting French modeler seeing fly de lightedily exciamed Te rri ble French way saying terrific name stuck Coming Frenchman high praise indeed since Coupe dHiver has described national passion French Free Flighters Please dont conjecture gave model name intended discourage others building it has successful tactic would much too transparentthose interested flying Coupe dHiver class surely know already model has taken first place its event four consecutive Nats 19821985 70-gram Coupe dHiver rule reinstated world outside France much discussion merit rule change modeling press indicated French considered two minutes less challenging 70-gram Coupe Others made vague ref erences continental air being different US variety French Coupes larger American ones big slow-rpm props fact prop runs reported have excess two 74 Model Aviation h 4 Above authors lovelywife hisTerrible Coupe Below Bright sunlight shows off internal structure thlswlnnerof foursuccessive NatsChampionshlps has just named National Free Flight Society Best Small Rubber Model 1986 Left Breakapart construction makes easy transport large model Right Disassembled fits 25-In box shipping minutes 100-gram models reasoned big Coupe built 1979 French style kept 70 grams would have no trouble 120-second max still air Naturally expected test model against its European competition corporated break-apart wing fuselage easier shipping 70-gram model welcome French competitions luck would have English holding annual Coupe dHiver Championship under both sets rules first try weighed 85 grams built required six additional grams nose ballast So much England 70-gram event Before finally lost woods Westover AFB 1983 model weighed 95 grams twice US Coupe dHiver champion never recovered never campaigned France second model weighed 72 grams ready-to-fly took first-place honors Reno Nats 1984 soon after too lost stab de thermalizer DT failed during local contest present model weighs 75 grams incorporates pop-off wing DTing well traditional stab DTing Wing DT alone sure bring model down often causes fuselage descend vertically DTing stab well alleviates prob lem reduces likelihood damage fraglle front end Since 1980 three models have executed 26 consecutive 1 20-seoond maxes Nats competitions Most still air before 10 am theyve also proved themselves good wind thermal fliers taking home two wins windy Westover Nats Coupe Terrible indeed following construction notes based questions modelers often ask contests Additional comments made features techniques standard type modeling Propeller hub fabricated tempered aluminum using drill press Dremel tool assorted files hack saw fine-toothed blade difficult might first appear Fit brass tubing liners hinge shaft holes vise Make tubing slightly overlong use pressure vise create slight distortion liner securing place Bend /32 music-wire hinges accept /3z brass tubing Flattening wire slightly Dremel tool will result better fit tubing make soldering easier Wrap copper wire add flux solder Sta-Brite silver solder maintain 1800 alignment sol dering placed lengths /16 OD alumi num tubing brass sockets Fine adjustment alignment accom plished either filing away part copper wire solder adding 015 brass shims solder filing best hubs shaft hinge holes exactly perpendicular parallel puts bias fold prop blades fit snuggly against fuselage Similar hubs may pur chased FAI Model Supply Jim Crockett Replicas form helical pitch prop can carved clear pine using templates plans carving quite easy November 1986 75 Fuselage layout stick pins through longeronsi scraps left pinned place make both sides build identically Fuselage construction detail Use tern poraryformer angle irons rubberbands keepthe parts square until glue isdry iii very importantto measure cut crosspieces accurately avoid wavy longerons Left airfoil template thats cut 1/16 plywood Note grain runs see text Center Note balsa undercamber pat tern mates airfoil template cut 1/16 sheet Right vertical-grain spar webs balsa holder keep straight Above soon-tO-be propeller blade sits rubberbanded laminating form just before goes 2000 oven Right prop pitch jig perpendicular 1/1 6-in wire triangles sure finished both blades have exactly same pitch wood rasp used coarse work left small amount camber form though Coupe dHiver fliers prefer flat-bottomed section props blades laminate Az hard sheet balsa 6-oz glass cloth epoxy A6 sheet balsa Soak balsa blanks water lash lightly form rubberbands Bake blade pair oven set 2000 half hour cooled room temperature remove form give inside surface blank very thin coat slow-drying epoxy like Hobbypoxy Formula 1 Complete sandwich glass cloth lash pitch form return 2000 oven 30 minutes heat will reduce vis cosity epoxy few seconds allow penetrate wood pores before sets up Protect form layer Saran Wrap similar plastic wrap step make sure oven temperature does get above 2000 plastic wrap will melt gluing prop blade form Finish blades sandpaper glue Y16 birch-dowel shaft 5mm epoxy Use aug shown plans set pitch blade oorrect glue prop shaft brass socket cyanoacrylate CyA Drill V32 hole through socket shaft insert hooks rubberband folds prop Wing Several building aids used make wing construction easier ensure fidelity plan plywood rib tem plate guides single-edged razor blade along airfoil assures uniform ribs no need draw lines balsa sheet Make sure exposed grain plywood perpendicular chord axis Though harder prepare template manner orientation keeps razor blade cutting template first cut undercamber Match 76 Model Aviation Left Nose block dural winding hook Screw sets stop angle folding prop Right Hand-machined aluminum prop hub Textcontains detallsforsimple construction Winding tools Torque meter uses 3/64 wire Modified hand drill has 41 ratio Wind ing tube protects fuselage broken motor explosions Long wire hook used transfer dural S-hook propeller Left aluminum wing joiner tube seen bottom Block wing up correct dihedral workbench glue aluminum tube place packed scrap drythetube issawn half Anotherplece tubing outsidediametermatching larger inside diameter joins halves Right rubberband center keeps two panels pulled together necessary incorporate guide pins wing halves hold alignment accomplished wing strapped fuselage Left dual release DT fuse Band stab apiece cut balloon make burn through first Middle DTsetup forthe rear-pivot wing Note howthe rubberband hook raised ethe surfaceto increase leverage Right Thewingtip line hold Whenthewing DTs comes completely off fuselage string wing tip fuselage keepsthe two pieces being separated during descent Full-Size Plans Available. Page 180 DIHEDRAL BREAK 29 532 LEFT WING30IOBABR 1016 SLSSETSCLS, AT ROOTERS 032 VERTSAE GRAil WEB 0ly32Q3~pxI HARE ESRaINWASH-IN DO STRINOTO TIPREWINS 020MW lOOKSEES FROM RN SWTVEL 000 NESC WIRE -3032 5 HR II I0WDSBBADO -ulV _______________________________________________ 1~TTII TURK ____________________ ___________________________________________ SRBW\F322STEKTNTEHSA&BASRERSS0BHAASC 3DOSTEET\ 11411....CK035 SISEET EASE rSWBBLLBACE,----R-,-Rm-------s 255 0IVI-~OIl#lGV1/#INSCSIBIW30TF VIV2SBW HBBK ALRM30MW063030STAR 5-0 ROOK 9032ALLM 50550 SOLAR BBG 7032OSOMASS ThBK BRAID OCER STRACORT AINOSUBEEB mRAHO EESI 3/K HARDWOOD032PLR4AC RIBS 1032NEE DOWELREARER BANK 7- PEL 3032 BIB0IKSO EVE SHRED DOUBLER,y3232SQ LE SRRBLH DOFLAR BARED TORT WiNS ROES SOWN WE 0 DETAIL RNEIBKTE322 3232 512 BEG 3FER SIKEERAL BREAK1032 PLY RICE NB EARNS ESSE VIEW TRANS ESSE VIEW TOP V EW IORVOSGEDP OCR FORM CARVE 50CR ES TOP HEW FIRST -1032PLVORES BAREUSE DEARREABES TV RARE CE TO KSALSS JSCERERRERVERB RIB TEMPLATE OLE GAVEL SENEOCK TASKS AREOL 030RAREVEMEBAI ORVISBC-SWABS PROPELLER BLADE ABISADE OF ROBOC I& ORWASA-BAT 306 303055V30B&SAEL BARD IBOTREBI LEER LJ 1032 PLYWOOD OIOGRODO MED30 BALSA FLLOR BALBA -OTDOD ROLESS OLARsO SEBUCE CAP506 SHEET GAlS STOOK NO B REARER BAND-~ RD FlOE REElS THROUBA SO B ROBSER PIVOTS THE AND BR N 0CC REUBBO CERBECTED TV FSECAGE BY V SCRINS HOOK 102 SHEET V-K IS S TOOK B 0345K TERRIBLE COUPE DESIGNED RB CHARLES RARKOS EWAWN RD GLENN C ACEDERSCBS undercamber cut slice off top camber Make sure ribs least longer required also 2 deeper TE section requires much easier remove excess add onto rib too small Hot-wire-cut sanding block Sty rofoam match wing undercamber affix #100-grit aluminum oxide paper latex contact cement use shape ribs second Styrofoam block also cut help align ribs cutting notches Sandpaper notch cutters prepared gluing #1 00-grit paper hard balsa widths required notches Check stiffness and/or wekht un-notched ribs Place lighter ones extremities heavier ones toward center helps order ribs writing number before stacking cutting notches isnt done rib may placed out order will divert notch parallel resulting unsightly wavy spars unwanted warps Stack numbered ribs Styrofoam form cut notches use balsa stop notch cutter set A6in depth notches cut hold stack together strip balsa placed notches square off LE portion ribs Drill pilot holes center two ribs accept wing joiner sleeve notched TE packed up lOB angle ribs trimmed glued TE LE No spars yet Make dihedral joints add lower %2 x 1/16 spar Place 1/32 sheet balsa webs grain aligned vertically between ribs Use notch cutter carefully set depth wing joiner set length % OD aluminum tubing pilot holes adjust dihedral h-in center section Glue tube place pack scrap balsa form box Cut tube slip 1/32 plywood cap ribs gussets TE deserve special Contjnupdnn 172 Left Alternate dual-release DT setup one-piece wing leading edge pivot Right rubberband helper used swing wing away fuselage Using pop-off wing may seem drastic normal stab DTing often enough strong thermal November 1986 77 301K SEEESRT 5032BVIK-IOIKSHT RWA WAS SEAR TIP WASH-OS 3016 332B3OR BEE C-ARABS N IDEWINS flSER-32RAVMTLBE 301K ORES BRED ElY RIGHT WING7-3011 SQ MER 2 -5032B 556 WRAR TOPS ROTTAR AI/ VI /// Stabilizer rear hold-down uses nylon tubing Spruce cap isto strengthen sub-rudder 1-KIIm0oEhnnoH0oExU 3rd flnnuI STPTIO SHOW & SWflP SHOP Pipopoft Ships Boats Cons 4Tophies/wopds Ttdo Exhibitors Chorlotte mochondise mct 2S00 E Ineenence BIu& ChoNotte flC THANKSGIVING WEEKEND flowembe IS5 * C lay Information Contact CAROLINA HOBBY EXPO 3452 ODELL SCHOOL RDCONCORD NC 28025 704-786-8373 add additional rudder fuselage get turn wanted once adjusted plane flew exceptionally well evidenced flight time NFFS National Free Flight Society guru Tony Italiano second POP 933 followed Vito Gaglianos 850 Dad Gagliano may want check son Charles some tips flying event David Brown lone Junior entrant posted time 324 positive spinoff what essential ly lackluster Indoor contest presence TV film crew National Geographic captured some representative samples Indoor flight film crew erected large black velveteen backarop filmed several models flight repeatedly passed majes tically front blacked-out set visual effect us watching laborious process stunning Lit front sides microfilm ships Tony Becker Richard Doig scattered flashes ralnbow colors turn prop new angle climb turn Scheduled airing late fall possibly October November National Geograph ics Explorer program segment now tentatively titled Flying Fanatics may very aptiy describe us attended years Indoor Nats Lake Charles Baby Bird/Dixon Continued page 73 Trimming flying Follow engine manufacturers instructions get fa miliar operating engine test stand Once installed model tune maximum power developed nose model pointed straight up will result slightly richer setting level flight engine overcompressed slightly run will steadier undercompressed fuel will burn wont have flameout easily Once engine properly broken will seldom need touch com pression screw find quicker starts possible opening needle valve exactly half-turn flight setting closing over five seconds engine warms up No priming needed generally start engine model upright choking finger two three flips Usually another two three flips takes get running Line length 40 ftusing Sig 008 cable lines cut down 52-ft package length needed exactly 1 ox tip weight model try fly model typical Dacron lines use Perfect handle modified coat hanger wire line carrier la Rich Porter line spacing can adjusted Ive settled spacing 3 propeller shown photos fiberglass Bolly designed originally Goodyear FM Team Racing has 68 diameter 49 pitch Ive also good success Graupner nylon/glass 7 x 5 Believe right sizes PAW 049 suspect Tee Dee would use 6 x 3 5 x 4 prop Lap speed other models will faster may accustomed Reynolds number effect again should pose no problem Fuel use Aero-Dyne diesel fuel right out can local hobby shop run Free Flight Old-Timer enthusiast stocks sort thing fortunate mix own per instructions engine manual myself have tried Davis Diesel fuel should work fine has sufficient castor oil lubri cation PAW recommends running castor agree based much ex perience lapped plain-bearing glow engines Manufactured diesel fuel appears ex pensive use er flight Its ether content makes highly evapo rative its best buy pint halfpint quantities Likewise mix own keep quantities small will also need switch neoprene fuel lines diesel fuel will cause silicone lines swell slip off fittings Hope enjoy Baby Bird Any questions comments can addressed care magazine Fly safely Terrible Coupe/Markos Continued page 77 mention Pay attention wood grain gusset needs hand fitted perfect match TE Final sanding 172Model Aviation rmeet Ou ecioI Oues~ WORLD WAR H FIGHTER ACE Robert S Johnson 028 Vectones0 th FIGHTER GROUP 1 Connectors Designed anything electrical requiring quick disconnects Ideal Power Pack Connector electric planes cars boats Designed high vibrafion environment Cycled ten Thousand times electrical failure dJ Anderson Power Products Inc 010 No 0262201, 010 No 0025154 SORRY NO PERSONAL CHECKS OR COD ORDERS Only certified checks money orders accepted Minimum order $1000 three packages 4 Powerpoles $300 per package plus $100 ship ping handling CT residents add 75/ sales tax Prices subject change notice Dealer Inquiries Invited further information dealer prices send SASE Bus Card SERMOS RIC SNAP CONNECTORS Cedar Corners Station Box 16787 Stamford CT 06905 Talk difference Torque Other manufacturers build engines CAN also used OPS builds engine specificially 60 helicoptor use Thats right OPS Super 60 SLA AC #8308 specificially built high torque will put sparkle helicoptors performance its specially balanced crank its five intake port side exhaust porting have winner See Local Hobby Shop SThe Part Comfem %n*o4 /1cC PO Box 26247 Orleans LA 70186 242-5967 wing uses undercamber sanding block clamped vise Scrub wing block short strokes remove uneven construction Covering finishing Give frame work two coats dope wherever will come contact covering Use nitrate dope have otherwise use Sig Lite Coat butyrate Japanese tissue available Peck-Polymers OldTimers Model Supply variety colors inspired build competition Free Flight model should already know tissue has grain direction Cover bottom camber wing first laying tissue grain spanwise brushing thinner through tissue first spar ribs Rub lightly finger push tissue close contact framework dope still soft perimeter framework next same method Trim excess tissue flush TE sharp razor blade leave approximately Vi6 leading edge curl around top side Seal edges dope using fine brush keep covering pulling away undercamber after shrinking doping give junctures ribs tissue coat dope before covering top camber fuselage covered two layers tissue cross-grained 450 angle axis motor box front portion attempt apply tissue biased grain tail boom severe warping will occur covering water-sprayed shrunk given two coats thinned dope super-light model requires spray doping Only three grams weight added finishing model Flying Several checks need made before heading out first flight wing should have slight washin inner right panel both outer panels should washed out center gravity CO 10-gram motor place should indicated plans Align tri fins dead straight ahead way check alignment establish perpendicular reference lines tiled floor Down right thrust should built according plans Test-glide model obtain smooth right-hand turn using up h-in stabilizer tilt sub-rudder adjustment stabilizer incidence order Always wind winding tube between place protect fuselage exploding motors Top performance means maximum turns lots Pirelli have motors blown have flown model eight strands 1981 4mm Pirelli six strands 1979 6mm Pirelli 10 strands 1981 -in FAI Supply rubber 70-7 5 grams can exceed two-minute dead-air times motors best combination eight strands 4mm Pirelli wound torque 1500 gramcentimeters up 520 turns never got e e oIeVS y0t3 mber 1986 173 Al tAOS Sated catS~ IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines iers bolt directly engine ust tube points bottom side cowi cone exhsust extension tubing inciuded Easily made produce smoke jIi U m m 164 School St Daly City CA 94014 415 756-3400 b 7_ / I-0 three flights motor used contest flying first powered flight should wound approximately one-third maximum turns climb should right adjust thrust changes stalling climb should corrected downthrust right thrust before adding turns Fine ad justments will become necessary power added flying conditions change Once testingthe model Reno Nats knocked tail boom right-hand left adjustment launching full power model flew perfectly left thermaled left glide big slow-moving model like susceptible trim changes smaller faster models very easy adjust forgiving mistakes DT arrangement hooks rub berbands has worked over since plans drawn objective positive action less compli cated setup Four methods investi gated two successful ones illustrated photos Both work like stab DT limit string like best pivots wing LE requires LE mount similar stab DT used one-piece wing other method TE pivot requires round ing reinforcing TE using hook hold rubberband least h-in above wing enough leverage make wing pivot fuselage two sets dual hooks help hold two-piece wing together flight Questions oomments Send SASE Chuck Markos 655 Carlisle Ave Deerfield IL 60015 Wakefield/Oldenkamp Continued page 78 30% wing formula yielded stubby somewhat fragile airplanes rather spindly undercarts bamboo bits huge fins props Suitably trimmed however andwith mod ern rubber strip outstanding performers ROG feature makes things very interesting especially done improp erly say least Few us admit ROG something miss lot Old174 Model Aviation VINTAGE R-C LAN EEII7!SOLiDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS11 PLAStIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE 48111 USA -a 8 Bottom Tube JT-ENBENVA 60-80-90-120 40 UP/INV ENG2700 JT-ENSENVA 60-80-90-120 40 UP/INVSIDE ENG2700 JT-ERBENYA R 120 FO UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FO UP/INVERTED/SIDE ENG3000 JT-61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-615MX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 80-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M28MAX PS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX FS 120 UP/INVERTED/SIDE ENGINE2700 JT-56BSAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-565SAIlO PA 65 UP/INVERTED/SIDE ENGINE2000 JT-528SAnD FA 120 UPRIGHT/INVERTED ENGINE2700 JT-525SAITO FA 120 UP/INVERTED/SIDE ENGINE2700 -Y S Side Tube ovIe yo hoBby shop OBDER DIRECT kawnedate sE*jmert Check MO VIacs MC COD accepted Add 5250 UPS 52fl0 COI 6% ads ta C raddmW knew forgot something. MY PLANE
Edition: Model Aviation - 1986/11
Page Numbers: 74, 75, 76, 77, 172, 173, 174
Terrible Coupe four-year string victories model has proven itself bestever designs Coupe dHiver modeling EChuck Markos REGARDLESS its name Terrible Coupe very good model airplane visiting French modeler seeing fly de lightedily exciamed Te rri ble French way saying terrific name stuck Coming Frenchman high praise indeed since Coupe dHiver has described national passion French Free Flighters Please dont conjecture gave model name intended discourage others building it has successful tactic would much too transparentthose interested flying Coupe dHiver class surely know already model has taken first place its event four consecutive Nats 19821985 70-gram Coupe dHiver rule reinstated world outside France much discussion merit rule change modeling press indicated French considered two minutes less challenging 70-gram Coupe Others made vague ref erences continental air being different US variety French Coupes larger American ones big slow-rpm props fact prop runs reported have excess two 74 Model Aviation h 4 Above authors lovelywife hisTerrible Coupe Below Bright sunlight shows off internal structure thlswlnnerof foursuccessive NatsChampionshlps has just named National Free Flight Society Best Small Rubber Model 1986 Left Breakapart construction makes easy transport large model Right Disassembled fits 25-In box shipping minutes 100-gram models reasoned big Coupe built 1979 French style kept 70 grams would have no trouble 120-second max still air Naturally expected test model against its European competition corporated break-apart wing fuselage easier shipping 70-gram model welcome French competitions luck would have English holding annual Coupe dHiver Championship under both sets rules first try weighed 85 grams built required six additional grams nose ballast So much England 70-gram event Before finally lost woods Westover AFB 1983 model weighed 95 grams twice US Coupe dHiver champion never recovered never campaigned France second model weighed 72 grams ready-to-fly took first-place honors Reno Nats 1984 soon after too lost stab de thermalizer DT failed during local contest present model weighs 75 grams incorporates pop-off wing DTing well traditional stab DTing Wing DT alone sure bring model down often causes fuselage descend vertically DTing stab well alleviates prob lem reduces likelihood damage fraglle front end Since 1980 three models have executed 26 consecutive 1 20-seoond maxes Nats competitions Most still air before 10 am theyve also proved themselves good wind thermal fliers taking home two wins windy Westover Nats Coupe Terrible indeed following construction notes based questions modelers often ask contests Additional comments made features techniques standard type modeling Propeller hub fabricated tempered aluminum using drill press Dremel tool assorted files hack saw fine-toothed blade difficult might first appear Fit brass tubing liners hinge shaft holes vise Make tubing slightly overlong use pressure vise create slight distortion liner securing place Bend /32 music-wire hinges accept /3z brass tubing Flattening wire slightly Dremel tool will result better fit tubing make soldering easier Wrap copper wire add flux solder Sta-Brite silver solder maintain 1800 alignment sol dering placed lengths /16 OD alumi num tubing brass sockets Fine adjustment alignment accom plished either filing away part copper wire solder adding 015 brass shims solder filing best hubs shaft hinge holes exactly perpendicular parallel puts bias fold prop blades fit snuggly against fuselage Similar hubs may pur chased FAI Model Supply Jim Crockett Replicas form helical pitch prop can carved clear pine using templates plans carving quite easy November 1986 75 Fuselage layout stick pins through longeronsi scraps left pinned place make both sides build identically Fuselage construction detail Use tern poraryformer angle irons rubberbands keepthe parts square until glue isdry iii very importantto measure cut crosspieces accurately avoid wavy longerons Left airfoil template thats cut 1/16 plywood Note grain runs see text Center Note balsa undercamber pat tern mates airfoil template cut 1/16 sheet Right vertical-grain spar webs balsa holder keep straight Above soon-tO-be propeller blade sits rubberbanded laminating form just before goes 2000 oven Right prop pitch jig perpendicular 1/1 6-in wire triangles sure finished both blades have exactly same pitch wood rasp used coarse work left small amount camber form though Coupe dHiver fliers prefer flat-bottomed section props blades laminate Az hard sheet balsa 6-oz glass cloth epoxy A6 sheet balsa Soak balsa blanks water lash lightly form rubberbands Bake blade pair oven set 2000 half hour cooled room temperature remove form give inside surface blank very thin coat slow-drying epoxy like Hobbypoxy Formula 1 Complete sandwich glass cloth lash pitch form return 2000 oven 30 minutes heat will reduce vis cosity epoxy few seconds allow penetrate wood pores before sets up Protect form layer Saran Wrap similar plastic wrap step make sure oven temperature does get above 2000 plastic wrap will melt gluing prop blade form Finish blades sandpaper glue Y16 birch-dowel shaft 5mm epoxy Use aug shown plans set pitch blade oorrect glue prop shaft brass socket cyanoacrylate CyA Drill V32 hole through socket shaft insert hooks rubberband folds prop Wing Several building aids used make wing construction easier ensure fidelity plan plywood rib tem plate guides single-edged razor blade along airfoil assures uniform ribs no need draw lines balsa sheet Make sure exposed grain plywood perpendicular chord axis Though harder prepare template manner orientation keeps razor blade cutting template first cut undercamber Match 76 Model Aviation Left Nose block dural winding hook Screw sets stop angle folding prop Right Hand-machined aluminum prop hub Textcontains detallsforsimple construction Winding tools Torque meter uses 3/64 wire Modified hand drill has 41 ratio Wind ing tube protects fuselage broken motor explosions Long wire hook used transfer dural S-hook propeller Left aluminum wing joiner tube seen bottom Block wing up correct dihedral workbench glue aluminum tube place packed scrap drythetube issawn half Anotherplece tubing outsidediametermatching larger inside diameter joins halves Right rubberband center keeps two panels pulled together necessary incorporate guide pins wing halves hold alignment accomplished wing strapped fuselage Left dual release DT fuse Band stab apiece cut balloon make burn through first Middle DTsetup forthe rear-pivot wing Note howthe rubberband hook raised ethe surfaceto increase leverage Right Thewingtip line hold Whenthewing DTs comes completely off fuselage string wing tip fuselage keepsthe two pieces being separated during descent Full-Size Plans Available. Page 180 DIHEDRAL BREAK 29 532 LEFT WING30IOBABR 1016 SLSSETSCLS, AT ROOTERS 032 VERTSAE GRAil WEB 0ly32Q3~pxI HARE ESRaINWASH-IN DO STRINOTO TIPREWINS 020MW lOOKSEES FROM RN SWTVEL 000 NESC WIRE -3032 5 HR II I0WDSBBADO -ulV _______________________________________________ 1~TTII TURK ____________________ ___________________________________________ SRBW\F322STEKTNTEHSA&BASRERSS0BHAASC 3DOSTEET\ 11411....CK035 SISEET EASE rSWBBLLBACE,----R-,-Rm-------s 255 0IVI-~OIl#lGV1/#INSCSIBIW30TF VIV2SBW HBBK ALRM30MW063030STAR 5-0 ROOK 9032ALLM 50550 SOLAR BBG 7032OSOMASS ThBK BRAID OCER STRACORT AINOSUBEEB mRAHO EESI 3/K HARDWOOD032PLR4AC RIBS 1032NEE DOWELREARER BANK 7- PEL 3032 BIB0IKSO EVE SHRED DOUBLER,y3232SQ LE SRRBLH DOFLAR BARED TORT WiNS ROES SOWN WE 0 DETAIL RNEIBKTE322 3232 512 BEG 3FER SIKEERAL BREAK1032 PLY RICE NB EARNS ESSE VIEW TRANS ESSE VIEW TOP V EW IORVOSGEDP OCR FORM CARVE 50CR ES TOP HEW FIRST -1032PLVORES BAREUSE DEARREABES TV RARE CE TO KSALSS JSCERERRERVERB RIB TEMPLATE OLE GAVEL SENEOCK TASKS AREOL 030RAREVEMEBAI ORVISBC-SWABS PROPELLER BLADE ABISADE OF ROBOC I& ORWASA-BAT 306 303055V30B&SAEL BARD IBOTREBI LEER LJ 1032 PLYWOOD OIOGRODO MED30 BALSA FLLOR BALBA -OTDOD ROLESS OLARsO SEBUCE CAP506 SHEET GAlS STOOK NO B REARER BAND-~ RD FlOE REElS THROUBA SO B ROBSER PIVOTS THE AND BR N 0CC REUBBO CERBECTED TV FSECAGE BY V SCRINS HOOK 102 SHEET V-K IS S TOOK B 0345K TERRIBLE COUPE DESIGNED RB CHARLES RARKOS EWAWN RD GLENN C ACEDERSCBS undercamber cut slice off top camber Make sure ribs least longer required also 2 deeper TE section requires much easier remove excess add onto rib too small Hot-wire-cut sanding block Sty rofoam match wing undercamber affix #100-grit aluminum oxide paper latex contact cement use shape ribs second Styrofoam block also cut help align ribs cutting notches Sandpaper notch cutters prepared gluing #1 00-grit paper hard balsa widths required notches Check stiffness and/or wekht un-notched ribs Place lighter ones extremities heavier ones toward center helps order ribs writing number before stacking cutting notches isnt done rib may placed out order will divert notch parallel resulting unsightly wavy spars unwanted warps Stack numbered ribs Styrofoam form cut notches use balsa stop notch cutter set A6in depth notches cut hold stack together strip balsa placed notches square off LE portion ribs Drill pilot holes center two ribs accept wing joiner sleeve notched TE packed up lOB angle ribs trimmed glued TE LE No spars yet Make dihedral joints add lower %2 x 1/16 spar Place 1/32 sheet balsa webs grain aligned vertically between ribs Use notch cutter carefully set depth wing joiner set length % OD aluminum tubing pilot holes adjust dihedral h-in center section Glue tube place pack scrap balsa form box Cut tube slip 1/32 plywood cap ribs gussets TE deserve special Contjnupdnn 172 Left Alternate dual-release DT setup one-piece wing leading edge pivot Right rubberband helper used swing wing away fuselage Using pop-off wing may seem drastic normal stab DTing often enough strong thermal November 1986 77 301K SEEESRT 5032BVIK-IOIKSHT RWA WAS SEAR TIP WASH-OS 3016 332B3OR BEE C-ARABS N IDEWINS flSER-32RAVMTLBE 301K ORES BRED ElY RIGHT WING7-3011 SQ MER 2 -5032B 556 WRAR TOPS ROTTAR AI/ VI /// Stabilizer rear hold-down uses nylon tubing Spruce cap isto strengthen sub-rudder 1-KIIm0oEhnnoH0oExU 3rd flnnuI STPTIO SHOW & SWflP SHOP Pipopoft Ships Boats Cons 4Tophies/wopds Ttdo Exhibitors Chorlotte mochondise mct 2S00 E Ineenence BIu& ChoNotte flC THANKSGIVING WEEKEND flowembe IS5 * C lay Information Contact CAROLINA HOBBY EXPO 3452 ODELL SCHOOL RDCONCORD NC 28025 704-786-8373 add additional rudder fuselage get turn wanted once adjusted plane flew exceptionally well evidenced flight time NFFS National Free Flight Society guru Tony Italiano second POP 933 followed Vito Gaglianos 850 Dad Gagliano may want check son Charles some tips flying event David Brown lone Junior entrant posted time 324 positive spinoff what essential ly lackluster Indoor contest presence TV film crew National Geographic captured some representative samples Indoor flight film crew erected large black velveteen backarop filmed several models flight repeatedly passed majes tically front blacked-out set visual effect us watching laborious process stunning Lit front sides microfilm ships Tony Becker Richard Doig scattered flashes ralnbow colors turn prop new angle climb turn Scheduled airing late fall possibly October November National Geograph ics Explorer program segment now tentatively titled Flying Fanatics may very aptiy describe us attended years Indoor Nats Lake Charles Baby Bird/Dixon Continued page 73 Trimming flying Follow engine manufacturers instructions get fa miliar operating engine test stand Once installed model tune maximum power developed nose model pointed straight up will result slightly richer setting level flight engine overcompressed slightly run will steadier undercompressed fuel will burn wont have flameout easily Once engine properly broken will seldom need touch com pression screw find quicker starts possible opening needle valve exactly half-turn flight setting closing over five seconds engine warms up No priming needed generally start engine model upright choking finger two three flips Usually another two three flips takes get running Line length 40 ftusing Sig 008 cable lines cut down 52-ft package length needed exactly 1 ox tip weight model try fly model typical Dacron lines use Perfect handle modified coat hanger wire line carrier la Rich Porter line spacing can adjusted Ive settled spacing 3 propeller shown photos fiberglass Bolly designed originally Goodyear FM Team Racing has 68 diameter 49 pitch Ive also good success Graupner nylon/glass 7 x 5 Believe right sizes PAW 049 suspect Tee Dee would use 6 x 3 5 x 4 prop Lap speed other models will faster may accustomed Reynolds number effect again should pose no problem Fuel use Aero-Dyne diesel fuel right out can local hobby shop run Free Flight Old-Timer enthusiast stocks sort thing fortunate mix own per instructions engine manual myself have tried Davis Diesel fuel should work fine has sufficient castor oil lubri cation PAW recommends running castor agree based much ex perience lapped plain-bearing glow engines Manufactured diesel fuel appears ex pensive use er flight Its ether content makes highly evapo rative its best buy pint halfpint quantities Likewise mix own keep quantities small will also need switch neoprene fuel lines diesel fuel will cause silicone lines swell slip off fittings Hope enjoy Baby Bird Any questions comments can addressed care magazine Fly safely Terrible Coupe/Markos Continued page 77 mention Pay attention wood grain gusset needs hand fitted perfect match TE Final sanding 172Model Aviation rmeet Ou ecioI Oues~ WORLD WAR H FIGHTER ACE Robert S Johnson 028 Vectones0 th FIGHTER GROUP 1 Connectors Designed anything electrical requiring quick disconnects Ideal Power Pack Connector electric planes cars boats Designed high vibrafion environment Cycled ten Thousand times electrical failure dJ Anderson Power Products Inc 010 No 0262201, 010 No 0025154 SORRY NO PERSONAL CHECKS OR COD ORDERS Only certified checks money orders accepted Minimum order $1000 three packages 4 Powerpoles $300 per package plus $100 ship ping handling CT residents add 75/ sales tax Prices subject change notice Dealer Inquiries Invited further information dealer prices send SASE Bus Card SERMOS RIC SNAP CONNECTORS Cedar Corners Station Box 16787 Stamford CT 06905 Talk difference Torque Other manufacturers build engines CAN also used OPS builds engine specificially 60 helicoptor use Thats right OPS Super 60 SLA AC #8308 specificially built high torque will put sparkle helicoptors performance its specially balanced crank its five intake port side exhaust porting have winner See Local Hobby Shop SThe Part Comfem %n*o4 /1cC PO Box 26247 Orleans LA 70186 242-5967 wing uses undercamber sanding block clamped vise Scrub wing block short strokes remove uneven construction Covering finishing Give frame work two coats dope wherever will come contact covering Use nitrate dope have otherwise use Sig Lite Coat butyrate Japanese tissue available Peck-Polymers OldTimers Model Supply variety colors inspired build competition Free Flight model should already know tissue has grain direction Cover bottom camber wing first laying tissue grain spanwise brushing thinner through tissue first spar ribs Rub lightly finger push tissue close contact framework dope still soft perimeter framework next same method Trim excess tissue flush TE sharp razor blade leave approximately Vi6 leading edge curl around top side Seal edges dope using fine brush keep covering pulling away undercamber after shrinking doping give junctures ribs tissue coat dope before covering top camber fuselage covered two layers tissue cross-grained 450 angle axis motor box front portion attempt apply tissue biased grain tail boom severe warping will occur covering water-sprayed shrunk given two coats thinned dope super-light model requires spray doping Only three grams weight added finishing model Flying Several checks need made before heading out first flight wing should have slight washin inner right panel both outer panels should washed out center gravity CO 10-gram motor place should indicated plans Align tri fins dead straight ahead way check alignment establish perpendicular reference lines tiled floor Down right thrust should built according plans Test-glide model obtain smooth right-hand turn using up h-in stabilizer tilt sub-rudder adjustment stabilizer incidence order Always wind winding tube between place protect fuselage exploding motors Top performance means maximum turns lots Pirelli have motors blown have flown model eight strands 1981 4mm Pirelli six strands 1979 6mm Pirelli 10 strands 1981 -in FAI Supply rubber 70-7 5 grams can exceed two-minute dead-air times motors best combination eight strands 4mm Pirelli wound torque 1500 gramcentimeters up 520 turns never got e e oIeVS y0t3 mber 1986 173 Al tAOS Sated catS~ IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines iers bolt directly engine ust tube points bottom side cowi cone exhsust extension tubing inciuded Easily made produce smoke jIi U m m 164 School St Daly City CA 94014 415 756-3400 b 7_ / I-0 three flights motor used contest flying first powered flight should wound approximately one-third maximum turns climb should right adjust thrust changes stalling climb should corrected downthrust right thrust before adding turns Fine ad justments will become necessary power added flying conditions change Once testingthe model Reno Nats knocked tail boom right-hand left adjustment launching full power model flew perfectly left thermaled left glide big slow-moving model like susceptible trim changes smaller faster models very easy adjust forgiving mistakes DT arrangement hooks rub berbands has worked over since plans drawn objective positive action less compli cated setup Four methods investi gated two successful ones illustrated photos Both work like stab DT limit string like best pivots wing LE requires LE mount similar stab DT used one-piece wing other method TE pivot requires round ing reinforcing TE using hook hold rubberband least h-in above wing enough leverage make wing pivot fuselage two sets dual hooks help hold two-piece wing together flight Questions oomments Send SASE Chuck Markos 655 Carlisle Ave Deerfield IL 60015 Wakefield/Oldenkamp Continued page 78 30% wing formula yielded stubby somewhat fragile airplanes rather spindly undercarts bamboo bits huge fins props Suitably trimmed however andwith mod ern rubber strip outstanding performers ROG feature makes things very interesting especially done improp erly say least Few us admit ROG something miss lot Old174 Model Aviation VINTAGE R-C LAN EEII7!SOLiDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS11 PLAStIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE 48111 USA -a 8 Bottom Tube JT-ENBENVA 60-80-90-120 40 UP/INV ENG2700 JT-ENSENVA 60-80-90-120 40 UP/INVSIDE ENG2700 JT-ERBENYA R 120 FO UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FO UP/INVERTED/SIDE ENG3000 JT-61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-615MX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 80-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M28MAX PS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX FS 120 UP/INVERTED/SIDE ENGINE2700 JT-56BSAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-565SAIlO PA 65 UP/INVERTED/SIDE ENGINE2000 JT-528SAnD FA 120 UPRIGHT/INVERTED ENGINE2700 JT-525SAITO FA 120 UP/INVERTED/SIDE ENGINE2700 -Y S Side Tube ovIe yo hoBby shop OBDER DIRECT kawnedate sE*jmert Check MO VIacs MC COD accepted Add 5250 UPS 52fl0 COI 6% ads ta C raddmW knew forgot something. MY PLANE
Edition: Model Aviation - 1986/11
Page Numbers: 74, 75, 76, 77, 172, 173, 174
Terrible Coupe four-year string victories model has proven itself bestever designs Coupe dHiver modeling EChuck Markos REGARDLESS its name Terrible Coupe very good model airplane visiting French modeler seeing fly de lightedily exciamed Te rri ble French way saying terrific name stuck Coming Frenchman high praise indeed since Coupe dHiver has described national passion French Free Flighters Please dont conjecture gave model name intended discourage others building it has successful tactic would much too transparentthose interested flying Coupe dHiver class surely know already model has taken first place its event four consecutive Nats 19821985 70-gram Coupe dHiver rule reinstated world outside France much discussion merit rule change modeling press indicated French considered two minutes less challenging 70-gram Coupe Others made vague ref erences continental air being different US variety French Coupes larger American ones big slow-rpm props fact prop runs reported have excess two 74 Model Aviation h 4 Above authors lovelywife hisTerrible Coupe Below Bright sunlight shows off internal structure thlswlnnerof foursuccessive NatsChampionshlps has just named National Free Flight Society Best Small Rubber Model 1986 Left Breakapart construction makes easy transport large model Right Disassembled fits 25-In box shipping minutes 100-gram models reasoned big Coupe built 1979 French style kept 70 grams would have no trouble 120-second max still air Naturally expected test model against its European competition corporated break-apart wing fuselage easier shipping 70-gram model welcome French competitions luck would have English holding annual Coupe dHiver Championship under both sets rules first try weighed 85 grams built required six additional grams nose ballast So much England 70-gram event Before finally lost woods Westover AFB 1983 model weighed 95 grams twice US Coupe dHiver champion never recovered never campaigned France second model weighed 72 grams ready-to-fly took first-place honors Reno Nats 1984 soon after too lost stab de thermalizer DT failed during local contest present model weighs 75 grams incorporates pop-off wing DTing well traditional stab DTing Wing DT alone sure bring model down often causes fuselage descend vertically DTing stab well alleviates prob lem reduces likelihood damage fraglle front end Since 1980 three models have executed 26 consecutive 1 20-seoond maxes Nats competitions Most still air before 10 am theyve also proved themselves good wind thermal fliers taking home two wins windy Westover Nats Coupe Terrible indeed following construction notes based questions modelers often ask contests Additional comments made features techniques standard type modeling Propeller hub fabricated tempered aluminum using drill press Dremel tool assorted files hack saw fine-toothed blade difficult might first appear Fit brass tubing liners hinge shaft holes vise Make tubing slightly overlong use pressure vise create slight distortion liner securing place Bend /32 music-wire hinges accept /3z brass tubing Flattening wire slightly Dremel tool will result better fit tubing make soldering easier Wrap copper wire add flux solder Sta-Brite silver solder maintain 1800 alignment sol dering placed lengths /16 OD alumi num tubing brass sockets Fine adjustment alignment accom plished either filing away part copper wire solder adding 015 brass shims solder filing best hubs shaft hinge holes exactly perpendicular parallel puts bias fold prop blades fit snuggly against fuselage Similar hubs may pur chased FAI Model Supply Jim Crockett Replicas form helical pitch prop can carved clear pine using templates plans carving quite easy November 1986 75 Fuselage layout stick pins through longeronsi scraps left pinned place make both sides build identically Fuselage construction detail Use tern poraryformer angle irons rubberbands keepthe parts square until glue isdry iii very importantto measure cut crosspieces accurately avoid wavy longerons Left airfoil template thats cut 1/16 plywood Note grain runs see text Center Note balsa undercamber pat tern mates airfoil template cut 1/16 sheet Right vertical-grain spar webs balsa holder keep straight Above soon-tO-be propeller blade sits rubberbanded laminating form just before goes 2000 oven Right prop pitch jig perpendicular 1/1 6-in wire triangles sure finished both blades have exactly same pitch wood rasp used coarse work left small amount camber form though Coupe dHiver fliers prefer flat-bottomed section props blades laminate Az hard sheet balsa 6-oz glass cloth epoxy A6 sheet balsa Soak balsa blanks water lash lightly form rubberbands Bake blade pair oven set 2000 half hour cooled room temperature remove form give inside surface blank very thin coat slow-drying epoxy like Hobbypoxy Formula 1 Complete sandwich glass cloth lash pitch form return 2000 oven 30 minutes heat will reduce vis cosity epoxy few seconds allow penetrate wood pores before sets up Protect form layer Saran Wrap similar plastic wrap step make sure oven temperature does get above 2000 plastic wrap will melt gluing prop blade form Finish blades sandpaper glue Y16 birch-dowel shaft 5mm epoxy Use aug shown plans set pitch blade oorrect glue prop shaft brass socket cyanoacrylate CyA Drill V32 hole through socket shaft insert hooks rubberband folds prop Wing Several building aids used make wing construction easier ensure fidelity plan plywood rib tem plate guides single-edged razor blade along airfoil assures uniform ribs no need draw lines balsa sheet Make sure exposed grain plywood perpendicular chord axis Though harder prepare template manner orientation keeps razor blade cutting template first cut undercamber Match 76 Model Aviation Left Nose block dural winding hook Screw sets stop angle folding prop Right Hand-machined aluminum prop hub Textcontains detallsforsimple construction Winding tools Torque meter uses 3/64 wire Modified hand drill has 41 ratio Wind ing tube protects fuselage broken motor explosions Long wire hook used transfer dural S-hook propeller Left aluminum wing joiner tube seen bottom Block wing up correct dihedral workbench glue aluminum tube place packed scrap drythetube issawn half Anotherplece tubing outsidediametermatching larger inside diameter joins halves Right rubberband center keeps two panels pulled together necessary incorporate guide pins wing halves hold alignment accomplished wing strapped fuselage Left dual release DT fuse Band stab apiece cut balloon make burn through first Middle DTsetup forthe rear-pivot wing Note howthe rubberband hook raised ethe surfaceto increase leverage Right Thewingtip line hold Whenthewing DTs comes completely off fuselage string wing tip fuselage keepsthe two pieces being separated during descent Full-Size Plans Available. Page 180 DIHEDRAL BREAK 29 532 LEFT WING30IOBABR 1016 SLSSETSCLS, AT ROOTERS 032 VERTSAE GRAil WEB 0ly32Q3~pxI HARE ESRaINWASH-IN DO STRINOTO TIPREWINS 020MW lOOKSEES FROM RN SWTVEL 000 NESC WIRE -3032 5 HR II I0WDSBBADO -ulV _______________________________________________ 1~TTII TURK ____________________ ___________________________________________ SRBW\F322STEKTNTEHSA&BASRERSS0BHAASC 3DOSTEET\ 11411....CK035 SISEET EASE rSWBBLLBACE,----R-,-Rm-------s 255 0IVI-~OIl#lGV1/#INSCSIBIW30TF VIV2SBW HBBK ALRM30MW063030STAR 5-0 ROOK 9032ALLM 50550 SOLAR BBG 7032OSOMASS ThBK BRAID OCER STRACORT AINOSUBEEB mRAHO EESI 3/K HARDWOOD032PLR4AC RIBS 1032NEE DOWELREARER BANK 7- PEL 3032 BIB0IKSO EVE SHRED DOUBLER,y3232SQ LE SRRBLH DOFLAR BARED TORT WiNS ROES SOWN WE 0 DETAIL RNEIBKTE322 3232 512 BEG 3FER SIKEERAL BREAK1032 PLY RICE NB EARNS ESSE VIEW TRANS ESSE VIEW TOP V EW IORVOSGEDP OCR FORM CARVE 50CR ES TOP HEW FIRST -1032PLVORES BAREUSE DEARREABES TV RARE CE TO KSALSS JSCERERRERVERB RIB TEMPLATE OLE GAVEL SENEOCK TASKS AREOL 030RAREVEMEBAI ORVISBC-SWABS PROPELLER BLADE ABISADE OF ROBOC I& ORWASA-BAT 306 303055V30B&SAEL BARD IBOTREBI LEER LJ 1032 PLYWOOD OIOGRODO MED30 BALSA FLLOR BALBA -OTDOD ROLESS OLARsO SEBUCE CAP506 SHEET GAlS STOOK NO B REARER BAND-~ RD FlOE REElS THROUBA SO B ROBSER PIVOTS THE AND BR N 0CC REUBBO CERBECTED TV FSECAGE BY V SCRINS HOOK 102 SHEET V-K IS S TOOK B 0345K TERRIBLE COUPE DESIGNED RB CHARLES RARKOS EWAWN RD GLENN C ACEDERSCBS undercamber cut slice off top camber Make sure ribs least longer required also 2 deeper TE section requires much easier remove excess add onto rib too small Hot-wire-cut sanding block Sty rofoam match wing undercamber affix #100-grit aluminum oxide paper latex contact cement use shape ribs second Styrofoam block also cut help align ribs cutting notches Sandpaper notch cutters prepared gluing #1 00-grit paper hard balsa widths required notches Check stiffness and/or wekht un-notched ribs Place lighter ones extremities heavier ones toward center helps order ribs writing number before stacking cutting notches isnt done rib may placed out order will divert notch parallel resulting unsightly wavy spars unwanted warps Stack numbered ribs Styrofoam form cut notches use balsa stop notch cutter set A6in depth notches cut hold stack together strip balsa placed notches square off LE portion ribs Drill pilot holes center two ribs accept wing joiner sleeve notched TE packed up lOB angle ribs trimmed glued TE LE No spars yet Make dihedral joints add lower %2 x 1/16 spar Place 1/32 sheet balsa webs grain aligned vertically between ribs Use notch cutter carefully set depth wing joiner set length % OD aluminum tubing pilot holes adjust dihedral h-in center section Glue tube place pack scrap balsa form box Cut tube slip 1/32 plywood cap ribs gussets TE deserve special Contjnupdnn 172 Left Alternate dual-release DT setup one-piece wing leading edge pivot Right rubberband helper used swing wing away fuselage Using pop-off wing may seem drastic normal stab DTing often enough strong thermal November 1986 77 301K SEEESRT 5032BVIK-IOIKSHT RWA WAS SEAR TIP WASH-OS 3016 332B3OR BEE C-ARABS N IDEWINS flSER-32RAVMTLBE 301K ORES BRED ElY RIGHT WING7-3011 SQ MER 2 -5032B 556 WRAR TOPS ROTTAR AI/ VI /// Stabilizer rear hold-down uses nylon tubing Spruce cap isto strengthen sub-rudder 1-KIIm0oEhnnoH0oExU 3rd flnnuI STPTIO SHOW & SWflP SHOP Pipopoft Ships Boats Cons 4Tophies/wopds Ttdo Exhibitors Chorlotte mochondise mct 2S00 E Ineenence BIu& ChoNotte flC THANKSGIVING WEEKEND flowembe IS5 * C lay Information Contact CAROLINA HOBBY EXPO 3452 ODELL SCHOOL RDCONCORD NC 28025 704-786-8373 add additional rudder fuselage get turn wanted once adjusted plane flew exceptionally well evidenced flight time NFFS National Free Flight Society guru Tony Italiano second POP 933 followed Vito Gaglianos 850 Dad Gagliano may want check son Charles some tips flying event David Brown lone Junior entrant posted time 324 positive spinoff what essential ly lackluster Indoor contest presence TV film crew National Geographic captured some representative samples Indoor flight film crew erected large black velveteen backarop filmed several models flight repeatedly passed majes tically front blacked-out set visual effect us watching laborious process stunning Lit front sides microfilm ships Tony Becker Richard Doig scattered flashes ralnbow colors turn prop new angle climb turn Scheduled airing late fall possibly October November National Geograph ics Explorer program segment now tentatively titled Flying Fanatics may very aptiy describe us attended years Indoor Nats Lake Charles Baby Bird/Dixon Continued page 73 Trimming flying Follow engine manufacturers instructions get fa miliar operating engine test stand Once installed model tune maximum power developed nose model pointed straight up will result slightly richer setting level flight engine overcompressed slightly run will steadier undercompressed fuel will burn wont have flameout easily Once engine properly broken will seldom need touch com pression screw find quicker starts possible opening needle valve exactly half-turn flight setting closing over five seconds engine warms up No priming needed generally start engine model upright choking finger two three flips Usually another two three flips takes get running Line length 40 ftusing Sig 008 cable lines cut down 52-ft package length needed exactly 1 ox tip weight model try fly model typical Dacron lines use Perfect handle modified coat hanger wire line carrier la Rich Porter line spacing can adjusted Ive settled spacing 3 propeller shown photos fiberglass Bolly designed originally Goodyear FM Team Racing has 68 diameter 49 pitch Ive also good success Graupner nylon/glass 7 x 5 Believe right sizes PAW 049 suspect Tee Dee would use 6 x 3 5 x 4 prop Lap speed other models will faster may accustomed Reynolds number effect again should pose no problem Fuel use Aero-Dyne diesel fuel right out can local hobby shop run Free Flight Old-Timer enthusiast stocks sort thing fortunate mix own per instructions engine manual myself have tried Davis Diesel fuel should work fine has sufficient castor oil lubri cation PAW recommends running castor agree based much ex perience lapped plain-bearing glow engines Manufactured diesel fuel appears ex pensive use er flight Its ether content makes highly evapo rative its best buy pint halfpint quantities Likewise mix own keep quantities small will also need switch neoprene fuel lines diesel fuel will cause silicone lines swell slip off fittings Hope enjoy Baby Bird Any questions comments can addressed care magazine Fly safely Terrible Coupe/Markos Continued page 77 mention Pay attention wood grain gusset needs hand fitted perfect match TE Final sanding 172Model Aviation rmeet Ou ecioI Oues~ WORLD WAR H FIGHTER ACE Robert S Johnson 028 Vectones0 th FIGHTER GROUP 1 Connectors Designed anything electrical requiring quick disconnects Ideal Power Pack Connector electric planes cars boats Designed high vibrafion environment Cycled ten Thousand times electrical failure dJ Anderson Power Products Inc 010 No 0262201, 010 No 0025154 SORRY NO PERSONAL CHECKS OR COD ORDERS Only certified checks money orders accepted Minimum order $1000 three packages 4 Powerpoles $300 per package plus $100 ship ping handling CT residents add 75/ sales tax Prices subject change notice Dealer Inquiries Invited further information dealer prices send SASE Bus Card SERMOS RIC SNAP CONNECTORS Cedar Corners Station Box 16787 Stamford CT 06905 Talk difference Torque Other manufacturers build engines CAN also used OPS builds engine specificially 60 helicoptor use Thats right OPS Super 60 SLA AC #8308 specificially built high torque will put sparkle helicoptors performance its specially balanced crank its five intake port side exhaust porting have winner See Local Hobby Shop SThe Part Comfem %n*o4 /1cC PO Box 26247 Orleans LA 70186 242-5967 wing uses undercamber sanding block clamped vise Scrub wing block short strokes remove uneven construction Covering finishing Give frame work two coats dope wherever will come contact covering Use nitrate dope have otherwise use Sig Lite Coat butyrate Japanese tissue available Peck-Polymers OldTimers Model Supply variety colors inspired build competition Free Flight model should already know tissue has grain direction Cover bottom camber wing first laying tissue grain spanwise brushing thinner through tissue first spar ribs Rub lightly finger push tissue close contact framework dope still soft perimeter framework next same method Trim excess tissue flush TE sharp razor blade leave approximately Vi6 leading edge curl around top side Seal edges dope using fine brush keep covering pulling away undercamber after shrinking doping give junctures ribs tissue coat dope before covering top camber fuselage covered two layers tissue cross-grained 450 angle axis motor box front portion attempt apply tissue biased grain tail boom severe warping will occur covering water-sprayed shrunk given two coats thinned dope super-light model requires spray doping Only three grams weight added finishing model Flying Several checks need made before heading out first flight wing should have slight washin inner right panel both outer panels should washed out center gravity CO 10-gram motor place should indicated plans Align tri fins dead straight ahead way check alignment establish perpendicular reference lines tiled floor Down right thrust should built according plans Test-glide model obtain smooth right-hand turn using up h-in stabilizer tilt sub-rudder adjustment stabilizer incidence order Always wind winding tube between place protect fuselage exploding motors Top performance means maximum turns lots Pirelli have motors blown have flown model eight strands 1981 4mm Pirelli six strands 1979 6mm Pirelli 10 strands 1981 -in FAI Supply rubber 70-7 5 grams can exceed two-minute dead-air times motors best combination eight strands 4mm Pirelli wound torque 1500 gramcentimeters up 520 turns never got e e oIeVS y0t3 mber 1986 173 Al tAOS Sated catS~ IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines iers bolt directly engine ust tube points bottom side cowi cone exhsust extension tubing inciuded Easily made produce smoke jIi U m m 164 School St Daly City CA 94014 415 756-3400 b 7_ / I-0 three flights motor used contest flying first powered flight should wound approximately one-third maximum turns climb should right adjust thrust changes stalling climb should corrected downthrust right thrust before adding turns Fine ad justments will become necessary power added flying conditions change Once testingthe model Reno Nats knocked tail boom right-hand left adjustment launching full power model flew perfectly left thermaled left glide big slow-moving model like susceptible trim changes smaller faster models very easy adjust forgiving mistakes DT arrangement hooks rub berbands has worked over since plans drawn objective positive action less compli cated setup Four methods investi gated two successful ones illustrated photos Both work like stab DT limit string like best pivots wing LE requires LE mount similar stab DT used one-piece wing other method TE pivot requires round ing reinforcing TE using hook hold rubberband least h-in above wing enough leverage make wing pivot fuselage two sets dual hooks help hold two-piece wing together flight Questions oomments Send SASE Chuck Markos 655 Carlisle Ave Deerfield IL 60015 Wakefield/Oldenkamp Continued page 78 30% wing formula yielded stubby somewhat fragile airplanes rather spindly undercarts bamboo bits huge fins props Suitably trimmed however andwith mod ern rubber strip outstanding performers ROG feature makes things very interesting especially done improp erly say least Few us admit ROG something miss lot Old174 Model Aviation VINTAGE R-C LAN EEII7!SOLiDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS11 PLAStIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE 48111 USA -a 8 Bottom Tube JT-ENBENVA 60-80-90-120 40 UP/INV ENG2700 JT-ENSENVA 60-80-90-120 40 UP/INVSIDE ENG2700 JT-ERBENYA R 120 FO UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FO UP/INVERTED/SIDE ENG3000 JT-61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-615MX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 80-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M28MAX PS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX FS 120 UP/INVERTED/SIDE ENGINE2700 JT-56BSAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-565SAIlO PA 65 UP/INVERTED/SIDE ENGINE2000 JT-528SAnD FA 120 UPRIGHT/INVERTED ENGINE2700 JT-525SAITO FA 120 UP/INVERTED/SIDE ENGINE2700 -Y S Side Tube ovIe yo hoBby shop OBDER DIRECT kawnedate sE*jmert Check MO VIacs MC COD accepted Add 5250 UPS 52fl0 COI 6% ads ta C raddmW knew forgot something. MY PLANE
Edition: Model Aviation - 1986/11
Page Numbers: 74, 75, 76, 77, 172, 173, 174
Terrible Coupe four-year string victories model has proven itself bestever designs Coupe dHiver modeling EChuck Markos REGARDLESS its name Terrible Coupe very good model airplane visiting French modeler seeing fly de lightedily exciamed Te rri ble French way saying terrific name stuck Coming Frenchman high praise indeed since Coupe dHiver has described national passion French Free Flighters Please dont conjecture gave model name intended discourage others building it has successful tactic would much too transparentthose interested flying Coupe dHiver class surely know already model has taken first place its event four consecutive Nats 19821985 70-gram Coupe dHiver rule reinstated world outside France much discussion merit rule change modeling press indicated French considered two minutes less challenging 70-gram Coupe Others made vague ref erences continental air being different US variety French Coupes larger American ones big slow-rpm props fact prop runs reported have excess two 74 Model Aviation h 4 Above authors lovelywife hisTerrible Coupe Below Bright sunlight shows off internal structure thlswlnnerof foursuccessive NatsChampionshlps has just named National Free Flight Society Best Small Rubber Model 1986 Left Breakapart construction makes easy transport large model Right Disassembled fits 25-In box shipping minutes 100-gram models reasoned big Coupe built 1979 French style kept 70 grams would have no trouble 120-second max still air Naturally expected test model against its European competition corporated break-apart wing fuselage easier shipping 70-gram model welcome French competitions luck would have English holding annual Coupe dHiver Championship under both sets rules first try weighed 85 grams built required six additional grams nose ballast So much England 70-gram event Before finally lost woods Westover AFB 1983 model weighed 95 grams twice US Coupe dHiver champion never recovered never campaigned France second model weighed 72 grams ready-to-fly took first-place honors Reno Nats 1984 soon after too lost stab de thermalizer DT failed during local contest present model weighs 75 grams incorporates pop-off wing DTing well traditional stab DTing Wing DT alone sure bring model down often causes fuselage descend vertically DTing stab well alleviates prob lem reduces likelihood damage fraglle front end Since 1980 three models have executed 26 consecutive 1 20-seoond maxes Nats competitions Most still air before 10 am theyve also proved themselves good wind thermal fliers taking home two wins windy Westover Nats Coupe Terrible indeed following construction notes based questions modelers often ask contests Additional comments made features techniques standard type modeling Propeller hub fabricated tempered aluminum using drill press Dremel tool assorted files hack saw fine-toothed blade difficult might first appear Fit brass tubing liners hinge shaft holes vise Make tubing slightly overlong use pressure vise create slight distortion liner securing place Bend /32 music-wire hinges accept /3z brass tubing Flattening wire slightly Dremel tool will result better fit tubing make soldering easier Wrap copper wire add flux solder Sta-Brite silver solder maintain 1800 alignment sol dering placed lengths /16 OD alumi num tubing brass sockets Fine adjustment alignment accom plished either filing away part copper wire solder adding 015 brass shims solder filing best hubs shaft hinge holes exactly perpendicular parallel puts bias fold prop blades fit snuggly against fuselage Similar hubs may pur chased FAI Model Supply Jim Crockett Replicas form helical pitch prop can carved clear pine using templates plans carving quite easy November 1986 75 Fuselage layout stick pins through longeronsi scraps left pinned place make both sides build identically Fuselage construction detail Use tern poraryformer angle irons rubberbands keepthe parts square until glue isdry iii very importantto measure cut crosspieces accurately avoid wavy longerons Left airfoil template thats cut 1/16 plywood Note grain runs see text Center Note balsa undercamber pat tern mates airfoil template cut 1/16 sheet Right vertical-grain spar webs balsa holder keep straight Above soon-tO-be propeller blade sits rubberbanded laminating form just before goes 2000 oven Right prop pitch jig perpendicular 1/1 6-in wire triangles sure finished both blades have exactly same pitch wood rasp used coarse work left small amount camber form though Coupe dHiver fliers prefer flat-bottomed section props blades laminate Az hard sheet balsa 6-oz glass cloth epoxy A6 sheet balsa Soak balsa blanks water lash lightly form rubberbands Bake blade pair oven set 2000 half hour cooled room temperature remove form give inside surface blank very thin coat slow-drying epoxy like Hobbypoxy Formula 1 Complete sandwich glass cloth lash pitch form return 2000 oven 30 minutes heat will reduce vis cosity epoxy few seconds allow penetrate wood pores before sets up Protect form layer Saran Wrap similar plastic wrap step make sure oven temperature does get above 2000 plastic wrap will melt gluing prop blade form Finish blades sandpaper glue Y16 birch-dowel shaft 5mm epoxy Use aug shown plans set pitch blade oorrect glue prop shaft brass socket cyanoacrylate CyA Drill V32 hole through socket shaft insert hooks rubberband folds prop Wing Several building aids used make wing construction easier ensure fidelity plan plywood rib tem plate guides single-edged razor blade along airfoil assures uniform ribs no need draw lines balsa sheet Make sure exposed grain plywood perpendicular chord axis Though harder prepare template manner orientation keeps razor blade cutting template first cut undercamber Match 76 Model Aviation Left Nose block dural winding hook Screw sets stop angle folding prop Right Hand-machined aluminum prop hub Textcontains detallsforsimple construction Winding tools Torque meter uses 3/64 wire Modified hand drill has 41 ratio Wind ing tube protects fuselage broken motor explosions Long wire hook used transfer dural S-hook propeller Left aluminum wing joiner tube seen bottom Block wing up correct dihedral workbench glue aluminum tube place packed scrap drythetube issawn half Anotherplece tubing outsidediametermatching larger inside diameter joins halves Right rubberband center keeps two panels pulled together necessary incorporate guide pins wing halves hold alignment accomplished wing strapped fuselage Left dual release DT fuse Band stab apiece cut balloon make burn through first Middle DTsetup forthe rear-pivot wing Note howthe rubberband hook raised ethe surfaceto increase leverage Right Thewingtip line hold Whenthewing DTs comes completely off fuselage string wing tip fuselage keepsthe two pieces being separated during descent Full-Size Plans Available. Page 180 DIHEDRAL BREAK 29 532 LEFT WING30IOBABR 1016 SLSSETSCLS, AT ROOTERS 032 VERTSAE GRAil WEB 0ly32Q3~pxI HARE ESRaINWASH-IN DO STRINOTO TIPREWINS 020MW lOOKSEES FROM RN SWTVEL 000 NESC WIRE -3032 5 HR II I0WDSBBADO -ulV _______________________________________________ 1~TTII TURK ____________________ ___________________________________________ SRBW\F322STEKTNTEHSA&BASRERSS0BHAASC 3DOSTEET\ 11411....CK035 SISEET EASE rSWBBLLBACE,----R-,-Rm-------s 255 0IVI-~OIl#lGV1/#INSCSIBIW30TF VIV2SBW HBBK ALRM30MW063030STAR 5-0 ROOK 9032ALLM 50550 SOLAR BBG 7032OSOMASS ThBK BRAID OCER STRACORT AINOSUBEEB mRAHO EESI 3/K HARDWOOD032PLR4AC RIBS 1032NEE DOWELREARER BANK 7- PEL 3032 BIB0IKSO EVE SHRED DOUBLER,y3232SQ LE SRRBLH DOFLAR BARED TORT WiNS ROES SOWN WE 0 DETAIL RNEIBKTE322 3232 512 BEG 3FER SIKEERAL BREAK1032 PLY RICE NB EARNS ESSE VIEW TRANS ESSE VIEW TOP V EW IORVOSGEDP OCR FORM CARVE 50CR ES TOP HEW FIRST -1032PLVORES BAREUSE DEARREABES TV RARE CE TO KSALSS JSCERERRERVERB RIB TEMPLATE OLE GAVEL SENEOCK TASKS AREOL 030RAREVEMEBAI ORVISBC-SWABS PROPELLER BLADE ABISADE OF ROBOC I& ORWASA-BAT 306 303055V30B&SAEL BARD IBOTREBI LEER LJ 1032 PLYWOOD OIOGRODO MED30 BALSA FLLOR BALBA -OTDOD ROLESS OLARsO SEBUCE CAP506 SHEET GAlS STOOK NO B REARER BAND-~ RD FlOE REElS THROUBA SO B ROBSER PIVOTS THE AND BR N 0CC REUBBO CERBECTED TV FSECAGE BY V SCRINS HOOK 102 SHEET V-K IS S TOOK B 0345K TERRIBLE COUPE DESIGNED RB CHARLES RARKOS EWAWN RD GLENN C ACEDERSCBS undercamber cut slice off top camber Make sure ribs least longer required also 2 deeper TE section requires much easier remove excess add onto rib too small Hot-wire-cut sanding block Sty rofoam match wing undercamber affix #100-grit aluminum oxide paper latex contact cement use shape ribs second Styrofoam block also cut help align ribs cutting notches Sandpaper notch cutters prepared gluing #1 00-grit paper hard balsa widths required notches Check stiffness and/or wekht un-notched ribs Place lighter ones extremities heavier ones toward center helps order ribs writing number before stacking cutting notches isnt done rib may placed out order will divert notch parallel resulting unsightly wavy spars unwanted warps Stack numbered ribs Styrofoam form cut notches use balsa stop notch cutter set A6in depth notches cut hold stack together strip balsa placed notches square off LE portion ribs Drill pilot holes center two ribs accept wing joiner sleeve notched TE packed up lOB angle ribs trimmed glued TE LE No spars yet Make dihedral joints add lower %2 x 1/16 spar Place 1/32 sheet balsa webs grain aligned vertically between ribs Use notch cutter carefully set depth wing joiner set length % OD aluminum tubing pilot holes adjust dihedral h-in center section Glue tube place pack scrap balsa form box Cut tube slip 1/32 plywood cap ribs gussets TE deserve special Contjnupdnn 172 Left Alternate dual-release DT setup one-piece wing leading edge pivot Right rubberband helper used swing wing away fuselage Using pop-off wing may seem drastic normal stab DTing often enough strong thermal November 1986 77 301K SEEESRT 5032BVIK-IOIKSHT RWA WAS SEAR TIP WASH-OS 3016 332B3OR BEE C-ARABS N IDEWINS flSER-32RAVMTLBE 301K ORES BRED ElY RIGHT WING7-3011 SQ MER 2 -5032B 556 WRAR TOPS ROTTAR AI/ VI /// Stabilizer rear hold-down uses nylon tubing Spruce cap isto strengthen sub-rudder 1-KIIm0oEhnnoH0oExU 3rd flnnuI STPTIO SHOW & SWflP SHOP Pipopoft Ships Boats Cons 4Tophies/wopds Ttdo Exhibitors Chorlotte mochondise mct 2S00 E Ineenence BIu& ChoNotte flC THANKSGIVING WEEKEND flowembe IS5 * C lay Information Contact CAROLINA HOBBY EXPO 3452 ODELL SCHOOL RDCONCORD NC 28025 704-786-8373 add additional rudder fuselage get turn wanted once adjusted plane flew exceptionally well evidenced flight time NFFS National Free Flight Society guru Tony Italiano second POP 933 followed Vito Gaglianos 850 Dad Gagliano may want check son Charles some tips flying event David Brown lone Junior entrant posted time 324 positive spinoff what essential ly lackluster Indoor contest presence TV film crew National Geographic captured some representative samples Indoor flight film crew erected large black velveteen backarop filmed several models flight repeatedly passed majes tically front blacked-out set visual effect us watching laborious process stunning Lit front sides microfilm ships Tony Becker Richard Doig scattered flashes ralnbow colors turn prop new angle climb turn Scheduled airing late fall possibly October November National Geograph ics Explorer program segment now tentatively titled Flying Fanatics may very aptiy describe us attended years Indoor Nats Lake Charles Baby Bird/Dixon Continued page 73 Trimming flying Follow engine manufacturers instructions get fa miliar operating engine test stand Once installed model tune maximum power developed nose model pointed straight up will result slightly richer setting level flight engine overcompressed slightly run will steadier undercompressed fuel will burn wont have flameout easily Once engine properly broken will seldom need touch com pression screw find quicker starts possible opening needle valve exactly half-turn flight setting closing over five seconds engine warms up No priming needed generally start engine model upright choking finger two three flips Usually another two three flips takes get running Line length 40 ftusing Sig 008 cable lines cut down 52-ft package length needed exactly 1 ox tip weight model try fly model typical Dacron lines use Perfect handle modified coat hanger wire line carrier la Rich Porter line spacing can adjusted Ive settled spacing 3 propeller shown photos fiberglass Bolly designed originally Goodyear FM Team Racing has 68 diameter 49 pitch Ive also good success Graupner nylon/glass 7 x 5 Believe right sizes PAW 049 suspect Tee Dee would use 6 x 3 5 x 4 prop Lap speed other models will faster may accustomed Reynolds number effect again should pose no problem Fuel use Aero-Dyne diesel fuel right out can local hobby shop run Free Flight Old-Timer enthusiast stocks sort thing fortunate mix own per instructions engine manual myself have tried Davis Diesel fuel should work fine has sufficient castor oil lubri cation PAW recommends running castor agree based much ex perience lapped plain-bearing glow engines Manufactured diesel fuel appears ex pensive use er flight Its ether content makes highly evapo rative its best buy pint halfpint quantities Likewise mix own keep quantities small will also need switch neoprene fuel lines diesel fuel will cause silicone lines swell slip off fittings Hope enjoy Baby Bird Any questions comments can addressed care magazine Fly safely Terrible Coupe/Markos Continued page 77 mention Pay attention wood grain gusset needs hand fitted perfect match TE Final sanding 172Model Aviation rmeet Ou ecioI Oues~ WORLD WAR H FIGHTER ACE Robert S Johnson 028 Vectones0 th FIGHTER GROUP 1 Connectors Designed anything electrical requiring quick disconnects Ideal Power Pack Connector electric planes cars boats Designed high vibrafion environment Cycled ten Thousand times electrical failure dJ Anderson Power Products Inc 010 No 0262201, 010 No 0025154 SORRY NO PERSONAL CHECKS OR COD ORDERS Only certified checks money orders accepted Minimum order $1000 three packages 4 Powerpoles $300 per package plus $100 ship ping handling CT residents add 75/ sales tax Prices subject change notice Dealer Inquiries Invited further information dealer prices send SASE Bus Card SERMOS RIC SNAP CONNECTORS Cedar Corners Station Box 16787 Stamford CT 06905 Talk difference Torque Other manufacturers build engines CAN also used OPS builds engine specificially 60 helicoptor use Thats right OPS Super 60 SLA AC #8308 specificially built high torque will put sparkle helicoptors performance its specially balanced crank its five intake port side exhaust porting have winner See Local Hobby Shop SThe Part Comfem %n*o4 /1cC PO Box 26247 Orleans LA 70186 242-5967 wing uses undercamber sanding block clamped vise Scrub wing block short strokes remove uneven construction Covering finishing Give frame work two coats dope wherever will come contact covering Use nitrate dope have otherwise use Sig Lite Coat butyrate Japanese tissue available Peck-Polymers OldTimers Model Supply variety colors inspired build competition Free Flight model should already know tissue has grain direction Cover bottom camber wing first laying tissue grain spanwise brushing thinner through tissue first spar ribs Rub lightly finger push tissue close contact framework dope still soft perimeter framework next same method Trim excess tissue flush TE sharp razor blade leave approximately Vi6 leading edge curl around top side Seal edges dope using fine brush keep covering pulling away undercamber after shrinking doping give junctures ribs tissue coat dope before covering top camber fuselage covered two layers tissue cross-grained 450 angle axis motor box front portion attempt apply tissue biased grain tail boom severe warping will occur covering water-sprayed shrunk given two coats thinned dope super-light model requires spray doping Only three grams weight added finishing model Flying Several checks need made before heading out first flight wing should have slight washin inner right panel both outer panels should washed out center gravity CO 10-gram motor place should indicated plans Align tri fins dead straight ahead way check alignment establish perpendicular reference lines tiled floor Down right thrust should built according plans Test-glide model obtain smooth right-hand turn using up h-in stabilizer tilt sub-rudder adjustment stabilizer incidence order Always wind winding tube between place protect fuselage exploding motors Top performance means maximum turns lots Pirelli have motors blown have flown model eight strands 1981 4mm Pirelli six strands 1979 6mm Pirelli 10 strands 1981 -in FAI Supply rubber 70-7 5 grams can exceed two-minute dead-air times motors best combination eight strands 4mm Pirelli wound torque 1500 gramcentimeters up 520 turns never got e e oIeVS y0t3 mber 1986 173 Al tAOS Sated catS~ IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines iers bolt directly engine ust tube points bottom side cowi cone exhsust extension tubing inciuded Easily made produce smoke jIi U m m 164 School St Daly City CA 94014 415 756-3400 b 7_ / I-0 three flights motor used contest flying first powered flight should wound approximately one-third maximum turns climb should right adjust thrust changes stalling climb should corrected downthrust right thrust before adding turns Fine ad justments will become necessary power added flying conditions change Once testingthe model Reno Nats knocked tail boom right-hand left adjustment launching full power model flew perfectly left thermaled left glide big slow-moving model like susceptible trim changes smaller faster models very easy adjust forgiving mistakes DT arrangement hooks rub berbands has worked over since plans drawn objective positive action less compli cated setup Four methods investi gated two successful ones illustrated photos Both work like stab DT limit string like best pivots wing LE requires LE mount similar stab DT used one-piece wing other method TE pivot requires round ing reinforcing TE using hook hold rubberband least h-in above wing enough leverage make wing pivot fuselage two sets dual hooks help hold two-piece wing together flight Questions oomments Send SASE Chuck Markos 655 Carlisle Ave Deerfield IL 60015 Wakefield/Oldenkamp Continued page 78 30% wing formula yielded stubby somewhat fragile airplanes rather spindly undercarts bamboo bits huge fins props Suitably trimmed however andwith mod ern rubber strip outstanding performers ROG feature makes things very interesting especially done improp erly say least Few us admit ROG something miss lot Old174 Model Aviation VINTAGE R-C LAN EEII7!SOLiDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS11 PLAStIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE 48111 USA -a 8 Bottom Tube JT-ENBENVA 60-80-90-120 40 UP/INV ENG2700 JT-ENSENVA 60-80-90-120 40 UP/INVSIDE ENG2700 JT-ERBENYA R 120 FO UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FO UP/INVERTED/SIDE ENG3000 JT-61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-615MX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 80-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M28MAX PS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX FS 120 UP/INVERTED/SIDE ENGINE2700 JT-56BSAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-565SAIlO PA 65 UP/INVERTED/SIDE ENGINE2000 JT-528SAnD FA 120 UPRIGHT/INVERTED ENGINE2700 JT-525SAITO FA 120 UP/INVERTED/SIDE ENGINE2700 -Y S Side Tube ovIe yo hoBby shop OBDER DIRECT kawnedate sE*jmert Check MO VIacs MC COD accepted Add 5250 UPS 52fl0 COI 6% ads ta C raddmW knew forgot something. MY PLANE
Edition: Model Aviation - 1986/11
Page Numbers: 74, 75, 76, 77, 172, 173, 174
Terrible Coupe four-year string victories model has proven itself bestever designs Coupe dHiver modeling EChuck Markos REGARDLESS its name Terrible Coupe very good model airplane visiting French modeler seeing fly de lightedily exciamed Te rri ble French way saying terrific name stuck Coming Frenchman high praise indeed since Coupe dHiver has described national passion French Free Flighters Please dont conjecture gave model name intended discourage others building it has successful tactic would much too transparentthose interested flying Coupe dHiver class surely know already model has taken first place its event four consecutive Nats 19821985 70-gram Coupe dHiver rule reinstated world outside France much discussion merit rule change modeling press indicated French considered two minutes less challenging 70-gram Coupe Others made vague ref erences continental air being different US variety French Coupes larger American ones big slow-rpm props fact prop runs reported have excess two 74 Model Aviation h 4 Above authors lovelywife hisTerrible Coupe Below Bright sunlight shows off internal structure thlswlnnerof foursuccessive NatsChampionshlps has just named National Free Flight Society Best Small Rubber Model 1986 Left Breakapart construction makes easy transport large model Right Disassembled fits 25-In box shipping minutes 100-gram models reasoned big Coupe built 1979 French style kept 70 grams would have no trouble 120-second max still air Naturally expected test model against its European competition corporated break-apart wing fuselage easier shipping 70-gram model welcome French competitions luck would have English holding annual Coupe dHiver Championship under both sets rules first try weighed 85 grams built required six additional grams nose ballast So much England 70-gram event Before finally lost woods Westover AFB 1983 model weighed 95 grams twice US Coupe dHiver champion never recovered never campaigned France second model weighed 72 grams ready-to-fly took first-place honors Reno Nats 1984 soon after too lost stab de thermalizer DT failed during local contest present model weighs 75 grams incorporates pop-off wing DTing well traditional stab DTing Wing DT alone sure bring model down often causes fuselage descend vertically DTing stab well alleviates prob lem reduces likelihood damage fraglle front end Since 1980 three models have executed 26 consecutive 1 20-seoond maxes Nats competitions Most still air before 10 am theyve also proved themselves good wind thermal fliers taking home two wins windy Westover Nats Coupe Terrible indeed following construction notes based questions modelers often ask contests Additional comments made features techniques standard type modeling Propeller hub fabricated tempered aluminum using drill press Dremel tool assorted files hack saw fine-toothed blade difficult might first appear Fit brass tubing liners hinge shaft holes vise Make tubing slightly overlong use pressure vise create slight distortion liner securing place Bend /32 music-wire hinges accept /3z brass tubing Flattening wire slightly Dremel tool will result better fit tubing make soldering easier Wrap copper wire add flux solder Sta-Brite silver solder maintain 1800 alignment sol dering placed lengths /16 OD alumi num tubing brass sockets Fine adjustment alignment accom plished either filing away part copper wire solder adding 015 brass shims solder filing best hubs shaft hinge holes exactly perpendicular parallel puts bias fold prop blades fit snuggly against fuselage Similar hubs may pur chased FAI Model Supply Jim Crockett Replicas form helical pitch prop can carved clear pine using templates plans carving quite easy November 1986 75 Fuselage layout stick pins through longeronsi scraps left pinned place make both sides build identically Fuselage construction detail Use tern poraryformer angle irons rubberbands keepthe parts square until glue isdry iii very importantto measure cut crosspieces accurately avoid wavy longerons Left airfoil template thats cut 1/16 plywood Note grain runs see text Center Note balsa undercamber pat tern mates airfoil template cut 1/16 sheet Right vertical-grain spar webs balsa holder keep straight Above soon-tO-be propeller blade sits rubberbanded laminating form just before goes 2000 oven Right prop pitch jig perpendicular 1/1 6-in wire triangles sure finished both blades have exactly same pitch wood rasp used coarse work left small amount camber form though Coupe dHiver fliers prefer flat-bottomed section props blades laminate Az hard sheet balsa 6-oz glass cloth epoxy A6 sheet balsa Soak balsa blanks water lash lightly form rubberbands Bake blade pair oven set 2000 half hour cooled room temperature remove form give inside surface blank very thin coat slow-drying epoxy like Hobbypoxy Formula 1 Complete sandwich glass cloth lash pitch form return 2000 oven 30 minutes heat will reduce vis cosity epoxy few seconds allow penetrate wood pores before sets up Protect form layer Saran Wrap similar plastic wrap step make sure oven temperature does get above 2000 plastic wrap will melt gluing prop blade form Finish blades sandpaper glue Y16 birch-dowel shaft 5mm epoxy Use aug shown plans set pitch blade oorrect glue prop shaft brass socket cyanoacrylate CyA Drill V32 hole through socket shaft insert hooks rubberband folds prop Wing Several building aids used make wing construction easier ensure fidelity plan plywood rib tem plate guides single-edged razor blade along airfoil assures uniform ribs no need draw lines balsa sheet Make sure exposed grain plywood perpendicular chord axis Though harder prepare template manner orientation keeps razor blade cutting template first cut undercamber Match 76 Model Aviation Left Nose block dural winding hook Screw sets stop angle folding prop Right Hand-machined aluminum prop hub Textcontains detallsforsimple construction Winding tools Torque meter uses 3/64 wire Modified hand drill has 41 ratio Wind ing tube protects fuselage broken motor explosions Long wire hook used transfer dural S-hook propeller Left aluminum wing joiner tube seen bottom Block wing up correct dihedral workbench glue aluminum tube place packed scrap drythetube issawn half Anotherplece tubing outsidediametermatching larger inside diameter joins halves Right rubberband center keeps two panels pulled together necessary incorporate guide pins wing halves hold alignment accomplished wing strapped fuselage Left dual release DT fuse Band stab apiece cut balloon make burn through first Middle DTsetup forthe rear-pivot wing Note howthe rubberband hook raised ethe surfaceto increase leverage Right Thewingtip line hold Whenthewing DTs comes completely off fuselage string wing tip fuselage keepsthe two pieces being separated during descent Full-Size Plans Available. Page 180 DIHEDRAL BREAK 29 532 LEFT WING30IOBABR 1016 SLSSETSCLS, AT ROOTERS 032 VERTSAE GRAil WEB 0ly32Q3~pxI HARE ESRaINWASH-IN DO STRINOTO TIPREWINS 020MW lOOKSEES FROM RN SWTVEL 000 NESC WIRE -3032 5 HR II I0WDSBBADO -ulV _______________________________________________ 1~TTII TURK ____________________ ___________________________________________ SRBW\F322STEKTNTEHSA&BASRERSS0BHAASC 3DOSTEET\ 11411....CK035 SISEET EASE rSWBBLLBACE,----R-,-Rm-------s 255 0IVI-~OIl#lGV1/#INSCSIBIW30TF VIV2SBW HBBK ALRM30MW063030STAR 5-0 ROOK 9032ALLM 50550 SOLAR BBG 7032OSOMASS ThBK BRAID OCER STRACORT AINOSUBEEB mRAHO EESI 3/K HARDWOOD032PLR4AC RIBS 1032NEE DOWELREARER BANK 7- PEL 3032 BIB0IKSO EVE SHRED DOUBLER,y3232SQ LE SRRBLH DOFLAR BARED TORT WiNS ROES SOWN WE 0 DETAIL RNEIBKTE322 3232 512 BEG 3FER SIKEERAL BREAK1032 PLY RICE NB EARNS ESSE VIEW TRANS ESSE VIEW TOP V EW IORVOSGEDP OCR FORM CARVE 50CR ES TOP HEW FIRST -1032PLVORES BAREUSE DEARREABES TV RARE CE TO KSALSS JSCERERRERVERB RIB TEMPLATE OLE GAVEL SENEOCK TASKS AREOL 030RAREVEMEBAI ORVISBC-SWABS PROPELLER BLADE ABISADE OF ROBOC I& ORWASA-BAT 306 303055V30B&SAEL BARD IBOTREBI LEER LJ 1032 PLYWOOD OIOGRODO MED30 BALSA FLLOR BALBA -OTDOD ROLESS OLARsO SEBUCE CAP506 SHEET GAlS STOOK NO B REARER BAND-~ RD FlOE REElS THROUBA SO B ROBSER PIVOTS THE AND BR N 0CC REUBBO CERBECTED TV FSECAGE BY V SCRINS HOOK 102 SHEET V-K IS S TOOK B 0345K TERRIBLE COUPE DESIGNED RB CHARLES RARKOS EWAWN RD GLENN C ACEDERSCBS undercamber cut slice off top camber Make sure ribs least longer required also 2 deeper TE section requires much easier remove excess add onto rib too small Hot-wire-cut sanding block Sty rofoam match wing undercamber affix #100-grit aluminum oxide paper latex contact cement use shape ribs second Styrofoam block also cut help align ribs cutting notches Sandpaper notch cutters prepared gluing #1 00-grit paper hard balsa widths required notches Check stiffness and/or wekht un-notched ribs Place lighter ones extremities heavier ones toward center helps order ribs writing number before stacking cutting notches isnt done rib may placed out order will divert notch parallel resulting unsightly wavy spars unwanted warps Stack numbered ribs Styrofoam form cut notches use balsa stop notch cutter set A6in depth notches cut hold stack together strip balsa placed notches square off LE portion ribs Drill pilot holes center two ribs accept wing joiner sleeve notched TE packed up lOB angle ribs trimmed glued TE LE No spars yet Make dihedral joints add lower %2 x 1/16 spar Place 1/32 sheet balsa webs grain aligned vertically between ribs Use notch cutter carefully set depth wing joiner set length % OD aluminum tubing pilot holes adjust dihedral h-in center section Glue tube place pack scrap balsa form box Cut tube slip 1/32 plywood cap ribs gussets TE deserve special Contjnupdnn 172 Left Alternate dual-release DT setup one-piece wing leading edge pivot Right rubberband helper used swing wing away fuselage Using pop-off wing may seem drastic normal stab DTing often enough strong thermal November 1986 77 301K SEEESRT 5032BVIK-IOIKSHT RWA WAS SEAR TIP WASH-OS 3016 332B3OR BEE C-ARABS N IDEWINS flSER-32RAVMTLBE 301K ORES BRED ElY RIGHT WING7-3011 SQ MER 2 -5032B 556 WRAR TOPS ROTTAR AI/ VI /// Stabilizer rear hold-down uses nylon tubing Spruce cap isto strengthen sub-rudder 1-KIIm0oEhnnoH0oExU 3rd flnnuI STPTIO SHOW & SWflP SHOP Pipopoft Ships Boats Cons 4Tophies/wopds Ttdo Exhibitors Chorlotte mochondise mct 2S00 E Ineenence BIu& ChoNotte flC THANKSGIVING WEEKEND flowembe IS5 * C lay Information Contact CAROLINA HOBBY EXPO 3452 ODELL SCHOOL RDCONCORD NC 28025 704-786-8373 add additional rudder fuselage get turn wanted once adjusted plane flew exceptionally well evidenced flight time NFFS National Free Flight Society guru Tony Italiano second POP 933 followed Vito Gaglianos 850 Dad Gagliano may want check son Charles some tips flying event David Brown lone Junior entrant posted time 324 positive spinoff what essential ly lackluster Indoor contest presence TV film crew National Geographic captured some representative samples Indoor flight film crew erected large black velveteen backarop filmed several models flight repeatedly passed majes tically front blacked-out set visual effect us watching laborious process stunning Lit front sides microfilm ships Tony Becker Richard Doig scattered flashes ralnbow colors turn prop new angle climb turn Scheduled airing late fall possibly October November National Geograph ics Explorer program segment now tentatively titled Flying Fanatics may very aptiy describe us attended years Indoor Nats Lake Charles Baby Bird/Dixon Continued page 73 Trimming flying Follow engine manufacturers instructions get fa miliar operating engine test stand Once installed model tune maximum power developed nose model pointed straight up will result slightly richer setting level flight engine overcompressed slightly run will steadier undercompressed fuel will burn wont have flameout easily Once engine properly broken will seldom need touch com pression screw find quicker starts possible opening needle valve exactly half-turn flight setting closing over five seconds engine warms up No priming needed generally start engine model upright choking finger two three flips Usually another two three flips takes get running Line length 40 ftusing Sig 008 cable lines cut down 52-ft package length needed exactly 1 ox tip weight model try fly model typical Dacron lines use Perfect handle modified coat hanger wire line carrier la Rich Porter line spacing can adjusted Ive settled spacing 3 propeller shown photos fiberglass Bolly designed originally Goodyear FM Team Racing has 68 diameter 49 pitch Ive also good success Graupner nylon/glass 7 x 5 Believe right sizes PAW 049 suspect Tee Dee would use 6 x 3 5 x 4 prop Lap speed other models will faster may accustomed Reynolds number effect again should pose no problem Fuel use Aero-Dyne diesel fuel right out can local hobby shop run Free Flight Old-Timer enthusiast stocks sort thing fortunate mix own per instructions engine manual myself have tried Davis Diesel fuel should work fine has sufficient castor oil lubri cation PAW recommends running castor agree based much ex perience lapped plain-bearing glow engines Manufactured diesel fuel appears ex pensive use er flight Its ether content makes highly evapo rative its best buy pint halfpint quantities Likewise mix own keep quantities small will also need switch neoprene fuel lines diesel fuel will cause silicone lines swell slip off fittings Hope enjoy Baby Bird Any questions comments can addressed care magazine Fly safely Terrible Coupe/Markos Continued page 77 mention Pay attention wood grain gusset needs hand fitted perfect match TE Final sanding 172Model Aviation rmeet Ou ecioI Oues~ WORLD WAR H FIGHTER ACE Robert S Johnson 028 Vectones0 th FIGHTER GROUP 1 Connectors Designed anything electrical requiring quick disconnects Ideal Power Pack Connector electric planes cars boats Designed high vibrafion environment Cycled ten Thousand times electrical failure dJ Anderson Power Products Inc 010 No 0262201, 010 No 0025154 SORRY NO PERSONAL CHECKS OR COD ORDERS Only certified checks money orders accepted Minimum order $1000 three packages 4 Powerpoles $300 per package plus $100 ship ping handling CT residents add 75/ sales tax Prices subject change notice Dealer Inquiries Invited further information dealer prices send SASE Bus Card SERMOS RIC SNAP CONNECTORS Cedar Corners Station Box 16787 Stamford CT 06905 Talk difference Torque Other manufacturers build engines CAN also used OPS builds engine specificially 60 helicoptor use Thats right OPS Super 60 SLA AC #8308 specificially built high torque will put sparkle helicoptors performance its specially balanced crank its five intake port side exhaust porting have winner See Local Hobby Shop SThe Part Comfem %n*o4 /1cC PO Box 26247 Orleans LA 70186 242-5967 wing uses undercamber sanding block clamped vise Scrub wing block short strokes remove uneven construction Covering finishing Give frame work two coats dope wherever will come contact covering Use nitrate dope have otherwise use Sig Lite Coat butyrate Japanese tissue available Peck-Polymers OldTimers Model Supply variety colors inspired build competition Free Flight model should already know tissue has grain direction Cover bottom camber wing first laying tissue grain spanwise brushing thinner through tissue first spar ribs Rub lightly finger push tissue close contact framework dope still soft perimeter framework next same method Trim excess tissue flush TE sharp razor blade leave approximately Vi6 leading edge curl around top side Seal edges dope using fine brush keep covering pulling away undercamber after shrinking doping give junctures ribs tissue coat dope before covering top camber fuselage covered two layers tissue cross-grained 450 angle axis motor box front portion attempt apply tissue biased grain tail boom severe warping will occur covering water-sprayed shrunk given two coats thinned dope super-light model requires spray doping Only three grams weight added finishing model Flying Several checks need made before heading out first flight wing should have slight washin inner right panel both outer panels should washed out center gravity CO 10-gram motor place should indicated plans Align tri fins dead straight ahead way check alignment establish perpendicular reference lines tiled floor Down right thrust should built according plans Test-glide model obtain smooth right-hand turn using up h-in stabilizer tilt sub-rudder adjustment stabilizer incidence order Always wind winding tube between place protect fuselage exploding motors Top performance means maximum turns lots Pirelli have motors blown have flown model eight strands 1981 4mm Pirelli six strands 1979 6mm Pirelli 10 strands 1981 -in FAI Supply rubber 70-7 5 grams can exceed two-minute dead-air times motors best combination eight strands 4mm Pirelli wound torque 1500 gramcentimeters up 520 turns never got e e oIeVS y0t3 mber 1986 173 Al tAOS Sated catS~ IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines iers bolt directly engine ust tube points bottom side cowi cone exhsust extension tubing inciuded Easily made produce smoke jIi U m m 164 School St Daly City CA 94014 415 756-3400 b 7_ / I-0 three flights motor used contest flying first powered flight should wound approximately one-third maximum turns climb should right adjust thrust changes stalling climb should corrected downthrust right thrust before adding turns Fine ad justments will become necessary power added flying conditions change Once testingthe model Reno Nats knocked tail boom right-hand left adjustment launching full power model flew perfectly left thermaled left glide big slow-moving model like susceptible trim changes smaller faster models very easy adjust forgiving mistakes DT arrangement hooks rub berbands has worked over since plans drawn objective positive action less compli cated setup Four methods investi gated two successful ones illustrated photos Both work like stab DT limit string like best pivots wing LE requires LE mount similar stab DT used one-piece wing other method TE pivot requires round ing reinforcing TE using hook hold rubberband least h-in above wing enough leverage make wing pivot fuselage two sets dual hooks help hold two-piece wing together flight Questions oomments Send SASE Chuck Markos 655 Carlisle Ave Deerfield IL 60015 Wakefield/Oldenkamp Continued page 78 30% wing formula yielded stubby somewhat fragile airplanes rather spindly undercarts bamboo bits huge fins props Suitably trimmed however andwith mod ern rubber strip outstanding performers ROG feature makes things very interesting especially done improp erly say least Few us admit ROG something miss lot Old174 Model Aviation VINTAGE R-C LAN EEII7!SOLiDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS11 PLAStIC ENGCOWLS $1090 PR CLEAR GUN BLISTERS $ 760 PR 4 LARGE PLAN SHEETS s $ 1895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $1495 GUN BLISTERS $ 550 PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE WORLDWIDE SID MORGAN 13157 ORMOND BELLEVILLE 48111 USA -a 8 Bottom Tube JT-ENBENVA 60-80-90-120 40 UP/INV ENG2700 JT-ENSENVA 60-80-90-120 40 UP/INVSIDE ENG2700 JT-ERBENYA R 120 FO UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FO UP/INVERTED/SIDE ENG3000 JT-61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-615MX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 80-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M28MAX PS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX FS 120 UP/INVERTED/SIDE ENGINE2700 JT-56BSAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-565SAIlO PA 65 UP/INVERTED/SIDE ENGINE2000 JT-528SAnD FA 120 UPRIGHT/INVERTED ENGINE2700 JT-525SAITO FA 120 UP/INVERTED/SIDE ENGINE2700 -Y S Side Tube ovIe yo hoBby shop OBDER DIRECT kawnedate sE*jmert Check MO VIacs MC COD accepted Add 5250 UPS 52fl0 COI 6% ads ta C raddmW knew forgot something. 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