Filling pacifier fuel system syringe George Sugiuchi appears pictures taken Tom Burrito Brother/Maverick ancestry quite evident design laminated curved wing tips add touch class Tom thinksthey aesthetic really dont take long make especial ly modern modeling adhesives Pictures indicate compactness 09 aircraft Editors Note pleased proud publish excellent free flight Its story began 1972- 73 pictures plans preparedand special challenge led its publication After reading introduction youll agree Tom made points What goes say about construction andflight ad ]ustments belong anyprofree-flighters scrap book adventure free flight designer dreams about George built Maverick de signs really liked way flew trouble winning Class because its small size ships kept beating him larger 19-powered models like Flying Burrito Brother Maverick held its own against ships its own size bigger bullies took advantage laws nature outclassed ng against smaller l also bad visibility problem since tended get lost easily both air ground obvious solution cant beat join building top-of-the-line Class ship George usually went contests small car phoned day asked what thought about performance capability 09-powered Class model since hadnt seen around thought about Georges idea made sense Cox TD 09 has highest power-to-weight ratios engine currently available hadnt too widely THIS article dedicated George Sugiuichi rare trusting souls spirit want top performing model fits easily small carbut ship bigger Ajobs cant bullythen instead ofa1AAyou should go 09 route ship entirely new design developed out 1AA Maverick U Tom Hutchinson February 1980 43 used because cant readily switch engines fly two classes same modeL model built strictly Class competition engine would potent because its larger size higher power Youd also have model didnt take up very much room car typical Since George liked way Maverick flew decided new design would based its proportions much possible made some quick calculations phoned back di mensions George next day showed up complete set working drawings approvaL Within two weeks first prototype completed ready test flights missed witnessing initial test flights George reported back enthusiasm day after ship flown right off board same good flight characteristics also mentioned starting another right away backup model Class Bob Ohly accompanied George first testing session subsequent ones wanted build models too asked George borrow set working drawings decided make up set inked plans After seeing George thought might have come up design worth publishing knew good-flying airplane distinctive concept well-drawn set plans experienced author write text name came easily enough Manito East LA Spanish forlittle brother felt appropriate con sidering its Burrito Brother/Maverick ancestry took some photos George Lake Elsi nore flying session sat down type writer spring 1973 prepare article rough draft half-completed came back spring vacation leam shocking news George died sudden heart attack away Since provided much inspiration project just put away plans photos rough draft After getting married starting new career teaching moving several times Id almost forgotten about Manito until last fall Thats editor wondered print good free flight designs suitable publication werent just another lookalike s jogged memory went up attic pulled out Manito plans see would meet stringent require ments After six years Manito still looked like good idea Flying fields engine runs auto mobiles have shrunk size compact Class model better-than-A perfor mance should still attractive fliers editor agreed Manito will finally appear print just George Bob envisioned Manito originally designed around Cox TD 09 alternative power choices Any plain-be aring15 like OS Max Enys would provide comparable performance would weigh about ounce design would probably able handle power ball-bearing 15 like ST Gi 5 extra engine weight would probably cause glide suffer 09 15 engine total weight model shouldnt exceed 12 oz Georges models weighed about 10 oz TD 09 Construction model will go together much quickly parts cut out advance like kit parts two pieces same shape needed trace outline out drafting vellum stick balsa removable rubber spray cement like 3M Spra Mount ribs can cut out individually using plywood template greater uniformity will occur stack-cut Dremel jigsaw bandsaw Cut out required number rib blanks length balsa sheet least George adjusts engine Manitoin ap proved manner add Both George Tom use squeeze-off timers simplicity operation flood-off timer excess fuel dumps its weight carried during glide 1 inches wide Stick tracing rib pattern top sheet pin whole stack together running pins both top bottom cutting ribs out run stack through saw same direction both upper lower surfaces Cut spar notches saw still stacked together Sand entire unit smooth leaving trailing edge portions ribs slightly oversize allow sanding final contour later Wing Construction Start wings lamina ting curved tip pieces together Best way cutout form scrap balsaa cheaper substitute corrugated cardboard inside outline wing tips Strip some strips soft 1/16 sheet should slightly over length about 18 inches Bend four strips around form holding against form pins Now use Hot Stuff bond laminations together might wise wax outside edge form crayon prevent sticking Repeat other tips Now can pin leading trailing edges down over plan splice curved tips sure right wing has sufficient wash-in Block up leading edge dihedral joint piece 3/16 balsa About halfway out 44 Model Aviation Close- up ot front end snowing Cox TO 09 installed its Kraft/ Hayes mount Plans show DT snuffer tube hole details evident pic Twin-legged gear provides soft landings Posed during early morn testing session Lake Elsinore George demonstrates proper position hand- launching mode Tom says pressure system pacifier simplest light consistent model shown Tom lets tank hang outwont soak inside fuse lage breaks FULL SIZE PLANS AVAILABLE SEE PAGE 128 r-6 PLYWOOD DIHEDRAL BRACE LI6SHT VERTICAL WEB WING LE 1A4SO 3YIC WASH-A OS RIGHT WIPB3 \MAIN TIP SPARS 8SO BALSA 1A6I/8 TOP SPAR l/83/16 SPRUCE- DOUBLE N\BOTTOMlS~R-TEPOXY BALSA I/8SOVENT N DOUBLER IIRA3B / I5RTF 1rnT33SHT THIN ALUMINUM AROUND LE4PCS I/I6 I/4 I/8SHTp3PCS I/l63/I6 SOFT 1I1fE 3/I6SOFT SHT F] WIREII -ICOBIS / I/I63PC& I/BSOLI 3/32HT : RNE7 K PYLON RIB 3/32SHTfMAKE 4] PYIDiS SIDES I/SIX BAT& BALANCE PONTPYLON JjL[3ARSG J4[I-BPLY HOORS TOFORRR IPYLON CORE I/16HDSHTSPRUCE - ISECURE IJ{J]STAR PLATFORM PAL FIER j I/8SOFT IMAKE 2DOUBLERI I/16SHTTOP I/IICSHT 3I4ISlB -.ii 7 T0K I11 TOM HUTCHINSON N TIP RIBS PRITCH IINDEEP FOR TOP MAIN SPAR ALL WIND & STAR RIBS II6SHT ]STABFALSE RIBS LN Sd-IT] TYPICALFIREWALL CROSS SEC TIOS DIHEDRAL DETAIL DIHEDRAL BRACE I1R PLY FIN RIBS I/IRSI-IT FIN SIDES I-2DSHT ID -L4SdT FORMER[SOFTI 2 SMALLPERFECT 214 dEAD-OUT EYELETS SCRAP FILLER DDEIBLER[2] VIBSHT-7N IIi GLASS COTH-ASTLINE HOORSNUFFER TUBE L2LONGZ3/32OD AUMNLB4 FORMERS BETWEEN DOUBLERS IICSHT I4OD FUSELAGE SIDES l/16SHT FORMERS 3/325HT NG KRPRTflRYES OR TAICRE ORMOUPITDbyBobORy 5/72 ]TATONE MT WILL REOIJRE SCBIE EXTRA BALSA FAIRB dihedral joint block up leading edge piece 3/32 balsa left wing center panel both tip panels built flat board Cut diagonal ribs little oversize thick ness allow final sanding contour after building Cut spar slots diagonal ribs after assembly sharp razor blade metal straightedge using slots straight ribs guide Use 5-minute epoxy gluing dihedral joints doesnt warp fills gaps dries fast enough both center tip joints can made night Sanding dihedral angles made easier top spars tips installed until after tip dihedral joint set center brace full-depth piece 1/16 ply After center joint has made slot center three ribs two hacksaw blades taped together brace will easily slip place can now install spar webbing grain vertical step will provide large part wings bending stiffness dont Omit Stabilizer model has long tail moment arm its very necessary keep stabilizer weight minimum Laminate leading trailing edges soft balsa strips manner similar wing tips except no forms re quired Just set row pins along inside outline add strips outer layer pins bond together Hot Stuff Cut down tip stab ribs full-size center ribs Place rib over spar cut off proper length leading trailing edges Use rib template trim right depth cutting off top side Covering Cover wing stabilizer can allowed cure fuselage being built Japanese tissue best covering material light model although 00 Silkspan would also suitable Dont use plastic films since too flexible heavy Dont skimp finish Too little finish will result model becomes fuel-soaked Continued page 125 February 1980 45 George demonstrates akeoff VTO part present AMA rules California con tests still allow Lighter- colored panels tissue separating darker- colored bottom panels make good contrast visibility design years standing Manito has planform dateless Ship state art old timers will sense familiar things time consuming way it sure looks best Add balsa gun fairings water shrink entire covered plane like shrink wing washout rather build used about Vi inch washout wing tip Dope plane two coats thinned dope preferably nitrate have added appropriate amount plasticizer cowl section mentioned before covered filled several coats dope talcum powder followed sanding Take time because cowl must look like metal rather grainy balsa really want niftylooking Fiat After clear doping select favorite Fiat color scheme chose sand spinph effect yellow cowling light grey undersurfaces used Floquil Model Railroad paints thinned very thin nitrate dope sprayed airbrush After adding colors details such panel lines can added soft grey pencil fixed coat clear nitrate sprayed Fiat built gear up simulated gear doors wheels bond paper glued place rubber cement numbers cut either black red tissue doped Next add pilot carved foam machine guns made balsa aluminum tube stack Trimming Flying used 9-in PeckPolymers plastic prop large Peck-Polymers bearing 50 down thrust finished weight Fiat rubber about 70 grams slightly over 2 oz about 95 grams rubber used 4 strands 2 loops FAI 3/16 rubber total length rubber about 15-17 feet Tie rubber good knot lube Dow 33 Sig Rubber Lube proceed braid motor having buddy hold knotted end motor put about 17 winder turns 161 winder Now grab knotted end buddy still holding onto other end place both ends over index finger Pull out now 4-stranded motor several times until looks nicely braided Install motor plane test glide over tall grass glide reasonable try few winds launch plane slightly nose down everything still OK try about 30 winder turns Fiat flies large left circle left glide properly trimmed will fly slightly nose-up attitude glide very well braided motor fly fun about 100 winder turns 1600 total turns get 45 seconds duration go broke 130-plus turnsexcept cant get turns 161 winder motor too strong plane flew 153 beat Mike Midkiffs super Hellcat FAC Nats needed use 51 winder get over 2000 total turns Good luck yours Now Ithink Ill try Bill Winters Grumman bipes Editor old timer thinks Curtiss SOC-3 biplane has potential bipealso MAN gosh knows Manito Hutchinson continued page 45 quickly short useful lifetime Use about three coats nitrate dope clear epoxy final coat Give couple extra coats front portion stab since exhaust residue seems collect Fuselage Use metal straightedge cut Out sides add nose tail doublers Draw top view out piece 3/32 sheet dont cut out yet Pin bottom building board glue formers Hot Stuff works well fuselage construction Add sides check ing carefully alignment Sand fuselage assembly add top Build pylon gluing pylon core bottom ribs Add formers checking core truly vertical Add tip ribs sand cover 1/20 sheet fin built same way no central core needed Cut out two sides outline shown glue fin ribs side Hot Stuff Sand no rib edges stick out glue other side recommend epoxy finish like Hobbypoxy fuselage High-nitro fuels will destroy other finish very short time Cover fuselage tissue using nitrate dope better epoxy adhesion Apply couple coats nitrate lacquer sanding sealer two coats colored epoxy add additional coat epoxy front end Wet sand first coat #400 wet-or-dry sandpaper final coat #600 Rub out Dupont white polishFlying Dont too much hurry get out flying field Assemble model check thoroughly proper balance correct warps CG should shown plans balances tail-heavy move engine forward inserting additional plywood spacers between firewall engine mount engine should point straight ahead slightly left Hand glide model sure theres no stalling diving tendency Correct shimming front back stab pieces thin ply should definite glide circle right Run engine few times familiarize yourself pacifier fuel system make sure engine cutoff works first flight try 5-second run prop backwards engine running full bore probably wont tell much should get rid first flight jitters model does anything climb straight out shallow angle may have problems sharp turn may mean have misaligned rudder bent fuselage steep climb stage means have too much incidence now flights will made full power prop proper direction Reason hot free-flight pattern depends being trimmed certain speed various adjustments make deli cately balanced work against other properly maximum climb speed try work way up gradually power 11 find yourself undoing low speed adjust ments go along So bite bullet try full-power test fight about 3-second engine run model should climb straight Out steep angle Adjust thrust offset correct turning tendencies right launch Remove incidence model shows looping tendency short run has shallow climb angle nose begins tuck under add incidence shimming rear stab get going straight out no looping tendencies 3-second run increase engine run 2-second increments model tends go left longer engine runs add right rudder tab Use pieces 1/16 x balsa cut trailing edge section glued February 1980 125 ing compound Assemble complete model move pylon until ship balances indicated very slightly forward epoxy place 62 Sport Scale 3-4 channels 1911 AVRO D Worlds First Tractor Biplane Kit includes wing-warping cable-operated elevator rudder winy-building jig quick assembly wing panels pilot passenger heads written instroctions 15 x 20 decal sheet Pre-printed sheet metal parts Rigging fittings PLANS 135 x 50 designed poster displaying lull size profile perspective assembly drawings portrait brief history AV Roe IY Second sheet full size working plan detail construction drawings George Marsden 7621 Mary Cassaft Drive AEOBATIC AiRPLANES BY ROBT C MORRISON 19 SUPERB DRAWINGS 8395 us SOW POSTAC LOG S $100 appropriate side rudder Vary length get less tab effect thick built-up rudder section makes model fairly insensitive rudder tab adjustments makes easy fine-tune pattern liking trim method use similar used FM Power models obtain righf/right pattern complication auto-surfaces Thrust adjustments effective low speeds first few seconds after launch wing wash-in gives left roll tendency during right climb Rudder tab used correct later stages power pattern Youll probably end up slight amount left thrust plus some right rudder tab warps correct power pattern want get should straight climb about three seconds gradually changing right climb making about complete turn nine seconds model goes round round making too turns take out incidence straighten out speed up climb model climbs too straight up tends go left end power pattern add right tab stalls doesnt recover quickly engine cuts add incidence power pattern set check glide again Add weight rear fuselage until model stalls slightly glide remove bit youve achieved desired power pattern dont tilt stab change glide circle since will affect incident setting maybe mess up carefully-trimmed power pattern Instead add shims wing rails tilt wing glide circle should give about complete circle 40 seconds calm weather Tighten about 30 seconds wind comes up KIT $9400 PLANS $3000 Potomac Maryland 20854 GET ORGANIZED l-lee s set 0t4 stady Nes holds Doe 4 years tao8e 8 agaza1ea 4 MAG FILES $495 Send 5496 p1w SI 00 postage handeig DOU INOUSTRES PO BOX 386-K DOVER NH 08620 KITSO PLANS SACCESSORIES BABY ACE , P-Nur set N 8EAEtNGS ROWN CO-S ENGINES L JAPANESE tISSUE-PROPS 17 SPAN COMPLETE CATALOG $1001 KIT S449 MANY HARD SO FIND ItEMS Peek-hjaes BOX 2493-AMLA MESA CALIF 92041 CL Scale/Gretz continued page 54 quality lumber obtained can vary enor mously Densities can vary four pounds 20 pounds per cubic foot Eight- 12-pound baisa considered medium average weight Six pound less consideredcontest grade Logically should select lightest softest grades lightly stressed parts structure block wing tips sheet tail surfaces etc heavier hard grades wing spars fuselage longerons Grain direction important consideration primarily selection sheet balsa way grain runs through sheet largely controls its rigidity flexibility example sheet cut log trees annular rings run across thickness sheet A-grain tangent cut sheet will fairly flexible edge edge fact after soaking water some tangentcut sheets can completely rolled tube shape splitting other hand sheet cut annular rings running through thickness sheet C-grain quarter grain sheet will very rigid edge edge cannot bent splitting sheet called random cut B-grain grain direction less clearly defined sheet will have intermedi ate properties between C grain ac companying chart illustrates three basic grain types sheet balsa lists appropriate uses Remember selecting sheet balsa grain direction weight should unrelated consider ations can find light heavy A-grain light heavy B-grain light heavy C-grain Grain direction controls stifihess weight Mike Gretz Box 162 Montezuma IA 50171 RC Old Timers/Mathews continued page 33 Oshkosh happening stems perma nent site has constantly improved long-term lease agreement absolute assurance knowing what expect motel rneai arrangements before one-even arrives should perhaps consider EAA example re-evaluate own annual national con vention Omaha Nats rest contes tants 79 Nats flew either Lincoln Mead Nebraska RC Old Timers went far west edge Omaha site City Park overlooking lake neatly mowed grass surrounding directions Truly lovely site field placed crest flattened-off hill panoramic view surrounding countryside Although hardiy ideal way demonstrate thing public interested contestants other events attended rewarded lovely day friendly group mingle Although entry size rather disappoint ing calibre competition high several well-developed models above average times recorded John Pond writer demon strated brilliant minds required writing column John launched Dallaire receiver off locked keys car trunk Smart spite greatly enjoyed hospitality extended locals would gladly fly place another time beautiful Bill Berkely Models Effinger recently related something worth sharing first gas model built scale Buhi Pup Editor big like todays ers built removable wings bracing easy transportation built model ever seeing gas model Come think it likely first sca gas modeL six-foot span Brown Jr * 187 climbed like rocket took 1000 feet pull out engine quit. must have traveled 80 mph Transportation problem under 18 didnt have drivers license Taking model subway ferry bus trolley finally airport experience Mr Effinger recalling 1936 New York City lived Brooklyn says flying site problems something new Somehow want fly models always figure way Fast Richard Runs Behindi hope include brief overviews manufacturers lines Old Timer-oriented kits powerplants accessories future columns folks business invited advise what have Well start Dick Mathis Design Group formerly M&P Lone Oak Texas 75453_Fast Richards kit line includes Flying Quaker 84 Quaker 54 reduced size opposed Quaker Flash see MA 8-78 Dallaire 108 Comet Clipper has recently returned S M U complete PhD teaching fellowship running behind deliveries Clipper Dick advises anyone has made deposit refunds will made cannot wait early 1980 delivery plan kit review Carl Goldberg classic cabin job soon should pure delight Dick vivacious wife Mary K con templating adding 900 sq scaled-down Dallaire line watched several perform Ft Worth predict Dallaire Jr combined 40-size engine will 126 Model Aviation L ting advertisers mention read about Model Aviation
Edition: Model Aviation - 1980/02
Page Numbers: 43, 44, 45, 125, 126
Filling pacifier fuel system syringe George Sugiuchi appears pictures taken Tom Burrito Brother/Maverick ancestry quite evident design laminated curved wing tips add touch class Tom thinksthey aesthetic really dont take long make especial ly modern modeling adhesives Pictures indicate compactness 09 aircraft Editors Note pleased proud publish excellent free flight Its story began 1972- 73 pictures plans preparedand special challenge led its publication After reading introduction youll agree Tom made points What goes say about construction andflight ad ]ustments belong anyprofree-flighters scrap book adventure free flight designer dreams about George built Maverick de signs really liked way flew trouble winning Class because its small size ships kept beating him larger 19-powered models like Flying Burrito Brother Maverick held its own against ships its own size bigger bullies took advantage laws nature outclassed ng against smaller l also bad visibility problem since tended get lost easily both air ground obvious solution cant beat join building top-of-the-line Class ship George usually went contests small car phoned day asked what thought about performance capability 09-powered Class model since hadnt seen around thought about Georges idea made sense Cox TD 09 has highest power-to-weight ratios engine currently available hadnt too widely THIS article dedicated George Sugiuichi rare trusting souls spirit want top performing model fits easily small carbut ship bigger Ajobs cant bullythen instead ofa1AAyou should go 09 route ship entirely new design developed out 1AA Maverick U Tom Hutchinson February 1980 43 used because cant readily switch engines fly two classes same modeL model built strictly Class competition engine would potent because its larger size higher power Youd also have model didnt take up very much room car typical Since George liked way Maverick flew decided new design would based its proportions much possible made some quick calculations phoned back di mensions George next day showed up complete set working drawings approvaL Within two weeks first prototype completed ready test flights missed witnessing initial test flights George reported back enthusiasm day after ship flown right off board same good flight characteristics also mentioned starting another right away backup model Class Bob Ohly accompanied George first testing session subsequent ones wanted build models too asked George borrow set working drawings decided make up set inked plans After seeing George thought might have come up design worth publishing knew good-flying airplane distinctive concept well-drawn set plans experienced author write text name came easily enough Manito East LA Spanish forlittle brother felt appropriate con sidering its Burrito Brother/Maverick ancestry took some photos George Lake Elsi nore flying session sat down type writer spring 1973 prepare article rough draft half-completed came back spring vacation leam shocking news George died sudden heart attack away Since provided much inspiration project just put away plans photos rough draft After getting married starting new career teaching moving several times Id almost forgotten about Manito until last fall Thats editor wondered print good free flight designs suitable publication werent just another lookalike s jogged memory went up attic pulled out Manito plans see would meet stringent require ments After six years Manito still looked like good idea Flying fields engine runs auto mobiles have shrunk size compact Class model better-than-A perfor mance should still attractive fliers editor agreed Manito will finally appear print just George Bob envisioned Manito originally designed around Cox TD 09 alternative power choices Any plain-be aring15 like OS Max Enys would provide comparable performance would weigh about ounce design would probably able handle power ball-bearing 15 like ST Gi 5 extra engine weight would probably cause glide suffer 09 15 engine total weight model shouldnt exceed 12 oz Georges models weighed about 10 oz TD 09 Construction model will go together much quickly parts cut out advance like kit parts two pieces same shape needed trace outline out drafting vellum stick balsa removable rubber spray cement like 3M Spra Mount ribs can cut out individually using plywood template greater uniformity will occur stack-cut Dremel jigsaw bandsaw Cut out required number rib blanks length balsa sheet least George adjusts engine Manitoin ap proved manner add Both George Tom use squeeze-off timers simplicity operation flood-off timer excess fuel dumps its weight carried during glide 1 inches wide Stick tracing rib pattern top sheet pin whole stack together running pins both top bottom cutting ribs out run stack through saw same direction both upper lower surfaces Cut spar notches saw still stacked together Sand entire unit smooth leaving trailing edge portions ribs slightly oversize allow sanding final contour later Wing Construction Start wings lamina ting curved tip pieces together Best way cutout form scrap balsaa cheaper substitute corrugated cardboard inside outline wing tips Strip some strips soft 1/16 sheet should slightly over length about 18 inches Bend four strips around form holding against form pins Now use Hot Stuff bond laminations together might wise wax outside edge form crayon prevent sticking Repeat other tips Now can pin leading trailing edges down over plan splice curved tips sure right wing has sufficient wash-in Block up leading edge dihedral joint piece 3/16 balsa About halfway out 44 Model Aviation Close- up ot front end snowing Cox TO 09 installed its Kraft/ Hayes mount Plans show DT snuffer tube hole details evident pic Twin-legged gear provides soft landings Posed during early morn testing session Lake Elsinore George demonstrates proper position hand- launching mode Tom says pressure system pacifier simplest light consistent model shown Tom lets tank hang outwont soak inside fuse lage breaks FULL SIZE PLANS AVAILABLE SEE PAGE 128 r-6 PLYWOOD DIHEDRAL BRACE LI6SHT VERTICAL WEB WING LE 1A4SO 3YIC WASH-A OS RIGHT WIPB3 \MAIN TIP SPARS 8SO BALSA 1A6I/8 TOP SPAR l/83/16 SPRUCE- DOUBLE N\BOTTOMlS~R-TEPOXY BALSA I/8SOVENT N DOUBLER IIRA3B / I5RTF 1rnT33SHT THIN ALUMINUM AROUND LE4PCS I/I6 I/4 I/8SHTp3PCS I/l63/I6 SOFT 1I1fE 3/I6SOFT SHT F] WIREII -ICOBIS / I/I63PC& I/BSOLI 3/32HT : RNE7 K PYLON RIB 3/32SHTfMAKE 4] PYIDiS SIDES I/SIX BAT& BALANCE PONTPYLON JjL[3ARSG J4[I-BPLY HOORS TOFORRR IPYLON CORE I/16HDSHTSPRUCE - ISECURE IJ{J]STAR PLATFORM PAL FIER j I/8SOFT IMAKE 2DOUBLERI I/16SHTTOP I/IICSHT 3I4ISlB -.ii 7 T0K I11 TOM HUTCHINSON N TIP RIBS PRITCH IINDEEP FOR TOP MAIN SPAR ALL WIND & STAR RIBS II6SHT ]STABFALSE RIBS LN Sd-IT] TYPICALFIREWALL CROSS SEC TIOS DIHEDRAL DETAIL DIHEDRAL BRACE I1R PLY FIN RIBS I/IRSI-IT FIN SIDES I-2DSHT ID -L4SdT FORMER[SOFTI 2 SMALLPERFECT 214 dEAD-OUT EYELETS SCRAP FILLER DDEIBLER[2] VIBSHT-7N IIi GLASS COTH-ASTLINE HOORSNUFFER TUBE L2LONGZ3/32OD AUMNLB4 FORMERS BETWEEN DOUBLERS IICSHT I4OD FUSELAGE SIDES l/16SHT FORMERS 3/325HT NG KRPRTflRYES OR TAICRE ORMOUPITDbyBobORy 5/72 ]TATONE MT WILL REOIJRE SCBIE EXTRA BALSA FAIRB dihedral joint block up leading edge piece 3/32 balsa left wing center panel both tip panels built flat board Cut diagonal ribs little oversize thick ness allow final sanding contour after building Cut spar slots diagonal ribs after assembly sharp razor blade metal straightedge using slots straight ribs guide Use 5-minute epoxy gluing dihedral joints doesnt warp fills gaps dries fast enough both center tip joints can made night Sanding dihedral angles made easier top spars tips installed until after tip dihedral joint set center brace full-depth piece 1/16 ply After center joint has made slot center three ribs two hacksaw blades taped together brace will easily slip place can now install spar webbing grain vertical step will provide large part wings bending stiffness dont Omit Stabilizer model has long tail moment arm its very necessary keep stabilizer weight minimum Laminate leading trailing edges soft balsa strips manner similar wing tips except no forms re quired Just set row pins along inside outline add strips outer layer pins bond together Hot Stuff Cut down tip stab ribs full-size center ribs Place rib over spar cut off proper length leading trailing edges Use rib template trim right depth cutting off top side Covering Cover wing stabilizer can allowed cure fuselage being built Japanese tissue best covering material light model although 00 Silkspan would also suitable Dont use plastic films since too flexible heavy Dont skimp finish Too little finish will result model becomes fuel-soaked Continued page 125 February 1980 45 George demonstrates akeoff VTO part present AMA rules California con tests still allow Lighter- colored panels tissue separating darker- colored bottom panels make good contrast visibility design years standing Manito has planform dateless Ship state art old timers will sense familiar things time consuming way it sure looks best Add balsa gun fairings water shrink entire covered plane like shrink wing washout rather build used about Vi inch washout wing tip Dope plane two coats thinned dope preferably nitrate have added appropriate amount plasticizer cowl section mentioned before covered filled several coats dope talcum powder followed sanding Take time because cowl must look like metal rather grainy balsa really want niftylooking Fiat After clear doping select favorite Fiat color scheme chose sand spinph effect yellow cowling light grey undersurfaces used Floquil Model Railroad paints thinned very thin nitrate dope sprayed airbrush After adding colors details such panel lines can added soft grey pencil fixed coat clear nitrate sprayed Fiat built gear up simulated gear doors wheels bond paper glued place rubber cement numbers cut either black red tissue doped Next add pilot carved foam machine guns made balsa aluminum tube stack Trimming Flying used 9-in PeckPolymers plastic prop large Peck-Polymers bearing 50 down thrust finished weight Fiat rubber about 70 grams slightly over 2 oz about 95 grams rubber used 4 strands 2 loops FAI 3/16 rubber total length rubber about 15-17 feet Tie rubber good knot lube Dow 33 Sig Rubber Lube proceed braid motor having buddy hold knotted end motor put about 17 winder turns 161 winder Now grab knotted end buddy still holding onto other end place both ends over index finger Pull out now 4-stranded motor several times until looks nicely braided Install motor plane test glide over tall grass glide reasonable try few winds launch plane slightly nose down everything still OK try about 30 winder turns Fiat flies large left circle left glide properly trimmed will fly slightly nose-up attitude glide very well braided motor fly fun about 100 winder turns 1600 total turns get 45 seconds duration go broke 130-plus turnsexcept cant get turns 161 winder motor too strong plane flew 153 beat Mike Midkiffs super Hellcat FAC Nats needed use 51 winder get over 2000 total turns Good luck yours Now Ithink Ill try Bill Winters Grumman bipes Editor old timer thinks Curtiss SOC-3 biplane has potential bipealso MAN gosh knows Manito Hutchinson continued page 45 quickly short useful lifetime Use about three coats nitrate dope clear epoxy final coat Give couple extra coats front portion stab since exhaust residue seems collect Fuselage Use metal straightedge cut Out sides add nose tail doublers Draw top view out piece 3/32 sheet dont cut out yet Pin bottom building board glue formers Hot Stuff works well fuselage construction Add sides check ing carefully alignment Sand fuselage assembly add top Build pylon gluing pylon core bottom ribs Add formers checking core truly vertical Add tip ribs sand cover 1/20 sheet fin built same way no central core needed Cut out two sides outline shown glue fin ribs side Hot Stuff Sand no rib edges stick out glue other side recommend epoxy finish like Hobbypoxy fuselage High-nitro fuels will destroy other finish very short time Cover fuselage tissue using nitrate dope better epoxy adhesion Apply couple coats nitrate lacquer sanding sealer two coats colored epoxy add additional coat epoxy front end Wet sand first coat #400 wet-or-dry sandpaper final coat #600 Rub out Dupont white polishFlying Dont too much hurry get out flying field Assemble model check thoroughly proper balance correct warps CG should shown plans balances tail-heavy move engine forward inserting additional plywood spacers between firewall engine mount engine should point straight ahead slightly left Hand glide model sure theres no stalling diving tendency Correct shimming front back stab pieces thin ply should definite glide circle right Run engine few times familiarize yourself pacifier fuel system make sure engine cutoff works first flight try 5-second run prop backwards engine running full bore probably wont tell much should get rid first flight jitters model does anything climb straight out shallow angle may have problems sharp turn may mean have misaligned rudder bent fuselage steep climb stage means have too much incidence now flights will made full power prop proper direction Reason hot free-flight pattern depends being trimmed certain speed various adjustments make deli cately balanced work against other properly maximum climb speed try work way up gradually power 11 find yourself undoing low speed adjust ments go along So bite bullet try full-power test fight about 3-second engine run model should climb straight Out steep angle Adjust thrust offset correct turning tendencies right launch Remove incidence model shows looping tendency short run has shallow climb angle nose begins tuck under add incidence shimming rear stab get going straight out no looping tendencies 3-second run increase engine run 2-second increments model tends go left longer engine runs add right rudder tab Use pieces 1/16 x balsa cut trailing edge section glued February 1980 125 ing compound Assemble complete model move pylon until ship balances indicated very slightly forward epoxy place 62 Sport Scale 3-4 channels 1911 AVRO D Worlds First Tractor Biplane Kit includes wing-warping cable-operated elevator rudder winy-building jig quick assembly wing panels pilot passenger heads written instroctions 15 x 20 decal sheet Pre-printed sheet metal parts Rigging fittings PLANS 135 x 50 designed poster displaying lull size profile perspective assembly drawings portrait brief history AV Roe IY Second sheet full size working plan detail construction drawings George Marsden 7621 Mary Cassaft Drive AEOBATIC AiRPLANES BY ROBT C MORRISON 19 SUPERB DRAWINGS 8395 us SOW POSTAC LOG S $100 appropriate side rudder Vary length get less tab effect thick built-up rudder section makes model fairly insensitive rudder tab adjustments makes easy fine-tune pattern liking trim method use similar used FM Power models obtain righf/right pattern complication auto-surfaces Thrust adjustments effective low speeds first few seconds after launch wing wash-in gives left roll tendency during right climb Rudder tab used correct later stages power pattern Youll probably end up slight amount left thrust plus some right rudder tab warps correct power pattern want get should straight climb about three seconds gradually changing right climb making about complete turn nine seconds model goes round round making too turns take out incidence straighten out speed up climb model climbs too straight up tends go left end power pattern add right tab stalls doesnt recover quickly engine cuts add incidence power pattern set check glide again Add weight rear fuselage until model stalls slightly glide remove bit youve achieved desired power pattern dont tilt stab change glide circle since will affect incident setting maybe mess up carefully-trimmed power pattern Instead add shims wing rails tilt wing glide circle should give about complete circle 40 seconds calm weather Tighten about 30 seconds wind comes up KIT $9400 PLANS $3000 Potomac Maryland 20854 GET ORGANIZED l-lee s set 0t4 stady Nes holds Doe 4 years tao8e 8 agaza1ea 4 MAG FILES $495 Send 5496 p1w SI 00 postage handeig DOU INOUSTRES PO BOX 386-K DOVER NH 08620 KITSO PLANS SACCESSORIES BABY ACE , P-Nur set N 8EAEtNGS ROWN CO-S ENGINES L JAPANESE tISSUE-PROPS 17 SPAN COMPLETE CATALOG $1001 KIT S449 MANY HARD SO FIND ItEMS Peek-hjaes BOX 2493-AMLA MESA CALIF 92041 CL Scale/Gretz continued page 54 quality lumber obtained can vary enor mously Densities can vary four pounds 20 pounds per cubic foot Eight- 12-pound baisa considered medium average weight Six pound less consideredcontest grade Logically should select lightest softest grades lightly stressed parts structure block wing tips sheet tail surfaces etc heavier hard grades wing spars fuselage longerons Grain direction important consideration primarily selection sheet balsa way grain runs through sheet largely controls its rigidity flexibility example sheet cut log trees annular rings run across thickness sheet A-grain tangent cut sheet will fairly flexible edge edge fact after soaking water some tangentcut sheets can completely rolled tube shape splitting other hand sheet cut annular rings running through thickness sheet C-grain quarter grain sheet will very rigid edge edge cannot bent splitting sheet called random cut B-grain grain direction less clearly defined sheet will have intermedi ate properties between C grain ac companying chart illustrates three basic grain types sheet balsa lists appropriate uses Remember selecting sheet balsa grain direction weight should unrelated consider ations can find light heavy A-grain light heavy B-grain light heavy C-grain Grain direction controls stifihess weight Mike Gretz Box 162 Montezuma IA 50171 RC Old Timers/Mathews continued page 33 Oshkosh happening stems perma nent site has constantly improved long-term lease agreement absolute assurance knowing what expect motel rneai arrangements before one-even arrives should perhaps consider EAA example re-evaluate own annual national con vention Omaha Nats rest contes tants 79 Nats flew either Lincoln Mead Nebraska RC Old Timers went far west edge Omaha site City Park overlooking lake neatly mowed grass surrounding directions Truly lovely site field placed crest flattened-off hill panoramic view surrounding countryside Although hardiy ideal way demonstrate thing public interested contestants other events attended rewarded lovely day friendly group mingle Although entry size rather disappoint ing calibre competition high several well-developed models above average times recorded John Pond writer demon strated brilliant minds required writing column John launched Dallaire receiver off locked keys car trunk Smart spite greatly enjoyed hospitality extended locals would gladly fly place another time beautiful Bill Berkely Models Effinger recently related something worth sharing first gas model built scale Buhi Pup Editor big like todays ers built removable wings bracing easy transportation built model ever seeing gas model Come think it likely first sca gas modeL six-foot span Brown Jr * 187 climbed like rocket took 1000 feet pull out engine quit. must have traveled 80 mph Transportation problem under 18 didnt have drivers license Taking model subway ferry bus trolley finally airport experience Mr Effinger recalling 1936 New York City lived Brooklyn says flying site problems something new Somehow want fly models always figure way Fast Richard Runs Behindi hope include brief overviews manufacturers lines Old Timer-oriented kits powerplants accessories future columns folks business invited advise what have Well start Dick Mathis Design Group formerly M&P Lone Oak Texas 75453_Fast Richards kit line includes Flying Quaker 84 Quaker 54 reduced size opposed Quaker Flash see MA 8-78 Dallaire 108 Comet Clipper has recently returned S M U complete PhD teaching fellowship running behind deliveries Clipper Dick advises anyone has made deposit refunds will made cannot wait early 1980 delivery plan kit review Carl Goldberg classic cabin job soon should pure delight Dick vivacious wife Mary K con templating adding 900 sq scaled-down Dallaire line watched several perform Ft Worth predict Dallaire Jr combined 40-size engine will 126 Model Aviation L ting advertisers mention read about Model Aviation
Edition: Model Aviation - 1980/02
Page Numbers: 43, 44, 45, 125, 126
Filling pacifier fuel system syringe George Sugiuchi appears pictures taken Tom Burrito Brother/Maverick ancestry quite evident design laminated curved wing tips add touch class Tom thinksthey aesthetic really dont take long make especial ly modern modeling adhesives Pictures indicate compactness 09 aircraft Editors Note pleased proud publish excellent free flight Its story began 1972- 73 pictures plans preparedand special challenge led its publication After reading introduction youll agree Tom made points What goes say about construction andflight ad ]ustments belong anyprofree-flighters scrap book adventure free flight designer dreams about George built Maverick de signs really liked way flew trouble winning Class because its small size ships kept beating him larger 19-powered models like Flying Burrito Brother Maverick held its own against ships its own size bigger bullies took advantage laws nature outclassed ng against smaller l also bad visibility problem since tended get lost easily both air ground obvious solution cant beat join building top-of-the-line Class ship George usually went contests small car phoned day asked what thought about performance capability 09-powered Class model since hadnt seen around thought about Georges idea made sense Cox TD 09 has highest power-to-weight ratios engine currently available hadnt too widely THIS article dedicated George Sugiuichi rare trusting souls spirit want top performing model fits easily small carbut ship bigger Ajobs cant bullythen instead ofa1AAyou should go 09 route ship entirely new design developed out 1AA Maverick U Tom Hutchinson February 1980 43 used because cant readily switch engines fly two classes same modeL model built strictly Class competition engine would potent because its larger size higher power Youd also have model didnt take up very much room car typical Since George liked way Maverick flew decided new design would based its proportions much possible made some quick calculations phoned back di mensions George next day showed up complete set working drawings approvaL Within two weeks first prototype completed ready test flights missed witnessing initial test flights George reported back enthusiasm day after ship flown right off board same good flight characteristics also mentioned starting another right away backup model Class Bob Ohly accompanied George first testing session subsequent ones wanted build models too asked George borrow set working drawings decided make up set inked plans After seeing George thought might have come up design worth publishing knew good-flying airplane distinctive concept well-drawn set plans experienced author write text name came easily enough Manito East LA Spanish forlittle brother felt appropriate con sidering its Burrito Brother/Maverick ancestry took some photos George Lake Elsi nore flying session sat down type writer spring 1973 prepare article rough draft half-completed came back spring vacation leam shocking news George died sudden heart attack away Since provided much inspiration project just put away plans photos rough draft After getting married starting new career teaching moving several times Id almost forgotten about Manito until last fall Thats editor wondered print good free flight designs suitable publication werent just another lookalike s jogged memory went up attic pulled out Manito plans see would meet stringent require ments After six years Manito still looked like good idea Flying fields engine runs auto mobiles have shrunk size compact Class model better-than-A perfor mance should still attractive fliers editor agreed Manito will finally appear print just George Bob envisioned Manito originally designed around Cox TD 09 alternative power choices Any plain-be aring15 like OS Max Enys would provide comparable performance would weigh about ounce design would probably able handle power ball-bearing 15 like ST Gi 5 extra engine weight would probably cause glide suffer 09 15 engine total weight model shouldnt exceed 12 oz Georges models weighed about 10 oz TD 09 Construction model will go together much quickly parts cut out advance like kit parts two pieces same shape needed trace outline out drafting vellum stick balsa removable rubber spray cement like 3M Spra Mount ribs can cut out individually using plywood template greater uniformity will occur stack-cut Dremel jigsaw bandsaw Cut out required number rib blanks length balsa sheet least George adjusts engine Manitoin ap proved manner add Both George Tom use squeeze-off timers simplicity operation flood-off timer excess fuel dumps its weight carried during glide 1 inches wide Stick tracing rib pattern top sheet pin whole stack together running pins both top bottom cutting ribs out run stack through saw same direction both upper lower surfaces Cut spar notches saw still stacked together Sand entire unit smooth leaving trailing edge portions ribs slightly oversize allow sanding final contour later Wing Construction Start wings lamina ting curved tip pieces together Best way cutout form scrap balsaa cheaper substitute corrugated cardboard inside outline wing tips Strip some strips soft 1/16 sheet should slightly over length about 18 inches Bend four strips around form holding against form pins Now use Hot Stuff bond laminations together might wise wax outside edge form crayon prevent sticking Repeat other tips Now can pin leading trailing edges down over plan splice curved tips sure right wing has sufficient wash-in Block up leading edge dihedral joint piece 3/16 balsa About halfway out 44 Model Aviation Close- up ot front end snowing Cox TO 09 installed its Kraft/ Hayes mount Plans show DT snuffer tube hole details evident pic Twin-legged gear provides soft landings Posed during early morn testing session Lake Elsinore George demonstrates proper position hand- launching mode Tom says pressure system pacifier simplest light consistent model shown Tom lets tank hang outwont soak inside fuse lage breaks FULL SIZE PLANS AVAILABLE SEE PAGE 128 r-6 PLYWOOD DIHEDRAL BRACE LI6SHT VERTICAL WEB WING LE 1A4SO 3YIC WASH-A OS RIGHT WIPB3 \MAIN TIP SPARS 8SO BALSA 1A6I/8 TOP SPAR l/83/16 SPRUCE- DOUBLE N\BOTTOMlS~R-TEPOXY BALSA I/8SOVENT N DOUBLER IIRA3B / I5RTF 1rnT33SHT THIN ALUMINUM AROUND LE4PCS I/I6 I/4 I/8SHTp3PCS I/l63/I6 SOFT 1I1fE 3/I6SOFT SHT F] WIREII -ICOBIS / I/I63PC& I/BSOLI 3/32HT : RNE7 K PYLON RIB 3/32SHTfMAKE 4] PYIDiS SIDES I/SIX BAT& BALANCE PONTPYLON JjL[3ARSG J4[I-BPLY HOORS TOFORRR IPYLON CORE I/16HDSHTSPRUCE - ISECURE IJ{J]STAR PLATFORM PAL FIER j I/8SOFT IMAKE 2DOUBLERI I/16SHTTOP I/IICSHT 3I4ISlB -.ii 7 T0K I11 TOM HUTCHINSON N TIP RIBS PRITCH IINDEEP FOR TOP MAIN SPAR ALL WIND & STAR RIBS II6SHT ]STABFALSE RIBS LN Sd-IT] TYPICALFIREWALL CROSS SEC TIOS DIHEDRAL DETAIL DIHEDRAL BRACE I1R PLY FIN RIBS I/IRSI-IT FIN SIDES I-2DSHT ID -L4SdT FORMER[SOFTI 2 SMALLPERFECT 214 dEAD-OUT EYELETS SCRAP FILLER DDEIBLER[2] VIBSHT-7N IIi GLASS COTH-ASTLINE HOORSNUFFER TUBE L2LONGZ3/32OD AUMNLB4 FORMERS BETWEEN DOUBLERS IICSHT I4OD FUSELAGE SIDES l/16SHT FORMERS 3/325HT NG KRPRTflRYES OR TAICRE ORMOUPITDbyBobORy 5/72 ]TATONE MT WILL REOIJRE SCBIE EXTRA BALSA FAIRB dihedral joint block up leading edge piece 3/32 balsa left wing center panel both tip panels built flat board Cut diagonal ribs little oversize thick ness allow final sanding contour after building Cut spar slots diagonal ribs after assembly sharp razor blade metal straightedge using slots straight ribs guide Use 5-minute epoxy gluing dihedral joints doesnt warp fills gaps dries fast enough both center tip joints can made night Sanding dihedral angles made easier top spars tips installed until after tip dihedral joint set center brace full-depth piece 1/16 ply After center joint has made slot center three ribs two hacksaw blades taped together brace will easily slip place can now install spar webbing grain vertical step will provide large part wings bending stiffness dont Omit Stabilizer model has long tail moment arm its very necessary keep stabilizer weight minimum Laminate leading trailing edges soft balsa strips manner similar wing tips except no forms re quired Just set row pins along inside outline add strips outer layer pins bond together Hot Stuff Cut down tip stab ribs full-size center ribs Place rib over spar cut off proper length leading trailing edges Use rib template trim right depth cutting off top side Covering Cover wing stabilizer can allowed cure fuselage being built Japanese tissue best covering material light model although 00 Silkspan would also suitable Dont use plastic films since too flexible heavy Dont skimp finish Too little finish will result model becomes fuel-soaked Continued page 125 February 1980 45 George demonstrates akeoff VTO part present AMA rules California con tests still allow Lighter- colored panels tissue separating darker- colored bottom panels make good contrast visibility design years standing Manito has planform dateless Ship state art old timers will sense familiar things time consuming way it sure looks best Add balsa gun fairings water shrink entire covered plane like shrink wing washout rather build used about Vi inch washout wing tip Dope plane two coats thinned dope preferably nitrate have added appropriate amount plasticizer cowl section mentioned before covered filled several coats dope talcum powder followed sanding Take time because cowl must look like metal rather grainy balsa really want niftylooking Fiat After clear doping select favorite Fiat color scheme chose sand spinph effect yellow cowling light grey undersurfaces used Floquil Model Railroad paints thinned very thin nitrate dope sprayed airbrush After adding colors details such panel lines can added soft grey pencil fixed coat clear nitrate sprayed Fiat built gear up simulated gear doors wheels bond paper glued place rubber cement numbers cut either black red tissue doped Next add pilot carved foam machine guns made balsa aluminum tube stack Trimming Flying used 9-in PeckPolymers plastic prop large Peck-Polymers bearing 50 down thrust finished weight Fiat rubber about 70 grams slightly over 2 oz about 95 grams rubber used 4 strands 2 loops FAI 3/16 rubber total length rubber about 15-17 feet Tie rubber good knot lube Dow 33 Sig Rubber Lube proceed braid motor having buddy hold knotted end motor put about 17 winder turns 161 winder Now grab knotted end buddy still holding onto other end place both ends over index finger Pull out now 4-stranded motor several times until looks nicely braided Install motor plane test glide over tall grass glide reasonable try few winds launch plane slightly nose down everything still OK try about 30 winder turns Fiat flies large left circle left glide properly trimmed will fly slightly nose-up attitude glide very well braided motor fly fun about 100 winder turns 1600 total turns get 45 seconds duration go broke 130-plus turnsexcept cant get turns 161 winder motor too strong plane flew 153 beat Mike Midkiffs super Hellcat FAC Nats needed use 51 winder get over 2000 total turns Good luck yours Now Ithink Ill try Bill Winters Grumman bipes Editor old timer thinks Curtiss SOC-3 biplane has potential bipealso MAN gosh knows Manito Hutchinson continued page 45 quickly short useful lifetime Use about three coats nitrate dope clear epoxy final coat Give couple extra coats front portion stab since exhaust residue seems collect Fuselage Use metal straightedge cut Out sides add nose tail doublers Draw top view out piece 3/32 sheet dont cut out yet Pin bottom building board glue formers Hot Stuff works well fuselage construction Add sides check ing carefully alignment Sand fuselage assembly add top Build pylon gluing pylon core bottom ribs Add formers checking core truly vertical Add tip ribs sand cover 1/20 sheet fin built same way no central core needed Cut out two sides outline shown glue fin ribs side Hot Stuff Sand no rib edges stick out glue other side recommend epoxy finish like Hobbypoxy fuselage High-nitro fuels will destroy other finish very short time Cover fuselage tissue using nitrate dope better epoxy adhesion Apply couple coats nitrate lacquer sanding sealer two coats colored epoxy add additional coat epoxy front end Wet sand first coat #400 wet-or-dry sandpaper final coat #600 Rub out Dupont white polishFlying Dont too much hurry get out flying field Assemble model check thoroughly proper balance correct warps CG should shown plans balances tail-heavy move engine forward inserting additional plywood spacers between firewall engine mount engine should point straight ahead slightly left Hand glide model sure theres no stalling diving tendency Correct shimming front back stab pieces thin ply should definite glide circle right Run engine few times familiarize yourself pacifier fuel system make sure engine cutoff works first flight try 5-second run prop backwards engine running full bore probably wont tell much should get rid first flight jitters model does anything climb straight out shallow angle may have problems sharp turn may mean have misaligned rudder bent fuselage steep climb stage means have too much incidence now flights will made full power prop proper direction Reason hot free-flight pattern depends being trimmed certain speed various adjustments make deli cately balanced work against other properly maximum climb speed try work way up gradually power 11 find yourself undoing low speed adjust ments go along So bite bullet try full-power test fight about 3-second engine run model should climb straight Out steep angle Adjust thrust offset correct turning tendencies right launch Remove incidence model shows looping tendency short run has shallow climb angle nose begins tuck under add incidence shimming rear stab get going straight out no looping tendencies 3-second run increase engine run 2-second increments model tends go left longer engine runs add right rudder tab Use pieces 1/16 x balsa cut trailing edge section glued February 1980 125 ing compound Assemble complete model move pylon until ship balances indicated very slightly forward epoxy place 62 Sport Scale 3-4 channels 1911 AVRO D Worlds First Tractor Biplane Kit includes wing-warping cable-operated elevator rudder winy-building jig quick assembly wing panels pilot passenger heads written instroctions 15 x 20 decal sheet Pre-printed sheet metal parts Rigging fittings PLANS 135 x 50 designed poster displaying lull size profile perspective assembly drawings portrait brief history AV Roe IY Second sheet full size working plan detail construction drawings George Marsden 7621 Mary Cassaft Drive AEOBATIC AiRPLANES BY ROBT C MORRISON 19 SUPERB DRAWINGS 8395 us SOW POSTAC LOG S $100 appropriate side rudder Vary length get less tab effect thick built-up rudder section makes model fairly insensitive rudder tab adjustments makes easy fine-tune pattern liking trim method use similar used FM Power models obtain righf/right pattern complication auto-surfaces Thrust adjustments effective low speeds first few seconds after launch wing wash-in gives left roll tendency during right climb Rudder tab used correct later stages power pattern Youll probably end up slight amount left thrust plus some right rudder tab warps correct power pattern want get should straight climb about three seconds gradually changing right climb making about complete turn nine seconds model goes round round making too turns take out incidence straighten out speed up climb model climbs too straight up tends go left end power pattern add right tab stalls doesnt recover quickly engine cuts add incidence power pattern set check glide again Add weight rear fuselage until model stalls slightly glide remove bit youve achieved desired power pattern dont tilt stab change glide circle since will affect incident setting maybe mess up carefully-trimmed power pattern Instead add shims wing rails tilt wing glide circle should give about complete circle 40 seconds calm weather Tighten about 30 seconds wind comes up KIT $9400 PLANS $3000 Potomac Maryland 20854 GET ORGANIZED l-lee s set 0t4 stady Nes holds Doe 4 years tao8e 8 agaza1ea 4 MAG FILES $495 Send 5496 p1w SI 00 postage handeig DOU INOUSTRES PO BOX 386-K DOVER NH 08620 KITSO PLANS SACCESSORIES BABY ACE , P-Nur set N 8EAEtNGS ROWN CO-S ENGINES L JAPANESE tISSUE-PROPS 17 SPAN COMPLETE CATALOG $1001 KIT S449 MANY HARD SO FIND ItEMS Peek-hjaes BOX 2493-AMLA MESA CALIF 92041 CL Scale/Gretz continued page 54 quality lumber obtained can vary enor mously Densities can vary four pounds 20 pounds per cubic foot Eight- 12-pound baisa considered medium average weight Six pound less consideredcontest grade Logically should select lightest softest grades lightly stressed parts structure block wing tips sheet tail surfaces etc heavier hard grades wing spars fuselage longerons Grain direction important consideration primarily selection sheet balsa way grain runs through sheet largely controls its rigidity flexibility example sheet cut log trees annular rings run across thickness sheet A-grain tangent cut sheet will fairly flexible edge edge fact after soaking water some tangentcut sheets can completely rolled tube shape splitting other hand sheet cut annular rings running through thickness sheet C-grain quarter grain sheet will very rigid edge edge cannot bent splitting sheet called random cut B-grain grain direction less clearly defined sheet will have intermedi ate properties between C grain ac companying chart illustrates three basic grain types sheet balsa lists appropriate uses Remember selecting sheet balsa grain direction weight should unrelated consider ations can find light heavy A-grain light heavy B-grain light heavy C-grain Grain direction controls stifihess weight Mike Gretz Box 162 Montezuma IA 50171 RC Old Timers/Mathews continued page 33 Oshkosh happening stems perma nent site has constantly improved long-term lease agreement absolute assurance knowing what expect motel rneai arrangements before one-even arrives should perhaps consider EAA example re-evaluate own annual national con vention Omaha Nats rest contes tants 79 Nats flew either Lincoln Mead Nebraska RC Old Timers went far west edge Omaha site City Park overlooking lake neatly mowed grass surrounding directions Truly lovely site field placed crest flattened-off hill panoramic view surrounding countryside Although hardiy ideal way demonstrate thing public interested contestants other events attended rewarded lovely day friendly group mingle Although entry size rather disappoint ing calibre competition high several well-developed models above average times recorded John Pond writer demon strated brilliant minds required writing column John launched Dallaire receiver off locked keys car trunk Smart spite greatly enjoyed hospitality extended locals would gladly fly place another time beautiful Bill Berkely Models Effinger recently related something worth sharing first gas model built scale Buhi Pup Editor big like todays ers built removable wings bracing easy transportation built model ever seeing gas model Come think it likely first sca gas modeL six-foot span Brown Jr * 187 climbed like rocket took 1000 feet pull out engine quit. must have traveled 80 mph Transportation problem under 18 didnt have drivers license Taking model subway ferry bus trolley finally airport experience Mr Effinger recalling 1936 New York City lived Brooklyn says flying site problems something new Somehow want fly models always figure way Fast Richard Runs Behindi hope include brief overviews manufacturers lines Old Timer-oriented kits powerplants accessories future columns folks business invited advise what have Well start Dick Mathis Design Group formerly M&P Lone Oak Texas 75453_Fast Richards kit line includes Flying Quaker 84 Quaker 54 reduced size opposed Quaker Flash see MA 8-78 Dallaire 108 Comet Clipper has recently returned S M U complete PhD teaching fellowship running behind deliveries Clipper Dick advises anyone has made deposit refunds will made cannot wait early 1980 delivery plan kit review Carl Goldberg classic cabin job soon should pure delight Dick vivacious wife Mary K con templating adding 900 sq scaled-down Dallaire line watched several perform Ft Worth predict Dallaire Jr combined 40-size engine will 126 Model Aviation L ting advertisers mention read about Model Aviation
Edition: Model Aviation - 1980/02
Page Numbers: 43, 44, 45, 125, 126
Filling pacifier fuel system syringe George Sugiuchi appears pictures taken Tom Burrito Brother/Maverick ancestry quite evident design laminated curved wing tips add touch class Tom thinksthey aesthetic really dont take long make especial ly modern modeling adhesives Pictures indicate compactness 09 aircraft Editors Note pleased proud publish excellent free flight Its story began 1972- 73 pictures plans preparedand special challenge led its publication After reading introduction youll agree Tom made points What goes say about construction andflight ad ]ustments belong anyprofree-flighters scrap book adventure free flight designer dreams about George built Maverick de signs really liked way flew trouble winning Class because its small size ships kept beating him larger 19-powered models like Flying Burrito Brother Maverick held its own against ships its own size bigger bullies took advantage laws nature outclassed ng against smaller l also bad visibility problem since tended get lost easily both air ground obvious solution cant beat join building top-of-the-line Class ship George usually went contests small car phoned day asked what thought about performance capability 09-powered Class model since hadnt seen around thought about Georges idea made sense Cox TD 09 has highest power-to-weight ratios engine currently available hadnt too widely THIS article dedicated George Sugiuichi rare trusting souls spirit want top performing model fits easily small carbut ship bigger Ajobs cant bullythen instead ofa1AAyou should go 09 route ship entirely new design developed out 1AA Maverick U Tom Hutchinson February 1980 43 used because cant readily switch engines fly two classes same modeL model built strictly Class competition engine would potent because its larger size higher power Youd also have model didnt take up very much room car typical Since George liked way Maverick flew decided new design would based its proportions much possible made some quick calculations phoned back di mensions George next day showed up complete set working drawings approvaL Within two weeks first prototype completed ready test flights missed witnessing initial test flights George reported back enthusiasm day after ship flown right off board same good flight characteristics also mentioned starting another right away backup model Class Bob Ohly accompanied George first testing session subsequent ones wanted build models too asked George borrow set working drawings decided make up set inked plans After seeing George thought might have come up design worth publishing knew good-flying airplane distinctive concept well-drawn set plans experienced author write text name came easily enough Manito East LA Spanish forlittle brother felt appropriate con sidering its Burrito Brother/Maverick ancestry took some photos George Lake Elsi nore flying session sat down type writer spring 1973 prepare article rough draft half-completed came back spring vacation leam shocking news George died sudden heart attack away Since provided much inspiration project just put away plans photos rough draft After getting married starting new career teaching moving several times Id almost forgotten about Manito until last fall Thats editor wondered print good free flight designs suitable publication werent just another lookalike s jogged memory went up attic pulled out Manito plans see would meet stringent require ments After six years Manito still looked like good idea Flying fields engine runs auto mobiles have shrunk size compact Class model better-than-A perfor mance should still attractive fliers editor agreed Manito will finally appear print just George Bob envisioned Manito originally designed around Cox TD 09 alternative power choices Any plain-be aring15 like OS Max Enys would provide comparable performance would weigh about ounce design would probably able handle power ball-bearing 15 like ST Gi 5 extra engine weight would probably cause glide suffer 09 15 engine total weight model shouldnt exceed 12 oz Georges models weighed about 10 oz TD 09 Construction model will go together much quickly parts cut out advance like kit parts two pieces same shape needed trace outline out drafting vellum stick balsa removable rubber spray cement like 3M Spra Mount ribs can cut out individually using plywood template greater uniformity will occur stack-cut Dremel jigsaw bandsaw Cut out required number rib blanks length balsa sheet least George adjusts engine Manitoin ap proved manner add Both George Tom use squeeze-off timers simplicity operation flood-off timer excess fuel dumps its weight carried during glide 1 inches wide Stick tracing rib pattern top sheet pin whole stack together running pins both top bottom cutting ribs out run stack through saw same direction both upper lower surfaces Cut spar notches saw still stacked together Sand entire unit smooth leaving trailing edge portions ribs slightly oversize allow sanding final contour later Wing Construction Start wings lamina ting curved tip pieces together Best way cutout form scrap balsaa cheaper substitute corrugated cardboard inside outline wing tips Strip some strips soft 1/16 sheet should slightly over length about 18 inches Bend four strips around form holding against form pins Now use Hot Stuff bond laminations together might wise wax outside edge form crayon prevent sticking Repeat other tips Now can pin leading trailing edges down over plan splice curved tips sure right wing has sufficient wash-in Block up leading edge dihedral joint piece 3/16 balsa About halfway out 44 Model Aviation Close- up ot front end snowing Cox TO 09 installed its Kraft/ Hayes mount Plans show DT snuffer tube hole details evident pic Twin-legged gear provides soft landings Posed during early morn testing session Lake Elsinore George demonstrates proper position hand- launching mode Tom says pressure system pacifier simplest light consistent model shown Tom lets tank hang outwont soak inside fuse lage breaks FULL SIZE PLANS AVAILABLE SEE PAGE 128 r-6 PLYWOOD DIHEDRAL BRACE LI6SHT VERTICAL WEB WING LE 1A4SO 3YIC WASH-A OS RIGHT WIPB3 \MAIN TIP SPARS 8SO BALSA 1A6I/8 TOP SPAR l/83/16 SPRUCE- DOUBLE N\BOTTOMlS~R-TEPOXY BALSA I/8SOVENT N DOUBLER IIRA3B / I5RTF 1rnT33SHT THIN ALUMINUM AROUND LE4PCS I/I6 I/4 I/8SHTp3PCS I/l63/I6 SOFT 1I1fE 3/I6SOFT SHT F] WIREII -ICOBIS / I/I63PC& I/BSOLI 3/32HT : RNE7 K PYLON RIB 3/32SHTfMAKE 4] PYIDiS SIDES I/SIX BAT& BALANCE PONTPYLON JjL[3ARSG J4[I-BPLY HOORS TOFORRR IPYLON CORE I/16HDSHTSPRUCE - ISECURE IJ{J]STAR PLATFORM PAL FIER j I/8SOFT IMAKE 2DOUBLERI I/16SHTTOP I/IICSHT 3I4ISlB -.ii 7 T0K I11 TOM HUTCHINSON N TIP RIBS PRITCH IINDEEP FOR TOP MAIN SPAR ALL WIND & STAR RIBS II6SHT ]STABFALSE RIBS LN Sd-IT] TYPICALFIREWALL CROSS SEC TIOS DIHEDRAL DETAIL DIHEDRAL BRACE I1R PLY FIN RIBS I/IRSI-IT FIN SIDES I-2DSHT ID -L4SdT FORMER[SOFTI 2 SMALLPERFECT 214 dEAD-OUT EYELETS SCRAP FILLER DDEIBLER[2] VIBSHT-7N IIi GLASS COTH-ASTLINE HOORSNUFFER TUBE L2LONGZ3/32OD AUMNLB4 FORMERS BETWEEN DOUBLERS IICSHT I4OD FUSELAGE SIDES l/16SHT FORMERS 3/325HT NG KRPRTflRYES OR TAICRE ORMOUPITDbyBobORy 5/72 ]TATONE MT WILL REOIJRE SCBIE EXTRA BALSA FAIRB dihedral joint block up leading edge piece 3/32 balsa left wing center panel both tip panels built flat board Cut diagonal ribs little oversize thick ness allow final sanding contour after building Cut spar slots diagonal ribs after assembly sharp razor blade metal straightedge using slots straight ribs guide Use 5-minute epoxy gluing dihedral joints doesnt warp fills gaps dries fast enough both center tip joints can made night Sanding dihedral angles made easier top spars tips installed until after tip dihedral joint set center brace full-depth piece 1/16 ply After center joint has made slot center three ribs two hacksaw blades taped together brace will easily slip place can now install spar webbing grain vertical step will provide large part wings bending stiffness dont Omit Stabilizer model has long tail moment arm its very necessary keep stabilizer weight minimum Laminate leading trailing edges soft balsa strips manner similar wing tips except no forms re quired Just set row pins along inside outline add strips outer layer pins bond together Hot Stuff Cut down tip stab ribs full-size center ribs Place rib over spar cut off proper length leading trailing edges Use rib template trim right depth cutting off top side Covering Cover wing stabilizer can allowed cure fuselage being built Japanese tissue best covering material light model although 00 Silkspan would also suitable Dont use plastic films since too flexible heavy Dont skimp finish Too little finish will result model becomes fuel-soaked Continued page 125 February 1980 45 George demonstrates akeoff VTO part present AMA rules California con tests still allow Lighter- colored panels tissue separating darker- colored bottom panels make good contrast visibility design years standing Manito has planform dateless Ship state art old timers will sense familiar things time consuming way it sure looks best Add balsa gun fairings water shrink entire covered plane like shrink wing washout rather build used about Vi inch washout wing tip Dope plane two coats thinned dope preferably nitrate have added appropriate amount plasticizer cowl section mentioned before covered filled several coats dope talcum powder followed sanding Take time because cowl must look like metal rather grainy balsa really want niftylooking Fiat After clear doping select favorite Fiat color scheme chose sand spinph effect yellow cowling light grey undersurfaces used Floquil Model Railroad paints thinned very thin nitrate dope sprayed airbrush After adding colors details such panel lines can added soft grey pencil fixed coat clear nitrate sprayed Fiat built gear up simulated gear doors wheels bond paper glued place rubber cement numbers cut either black red tissue doped Next add pilot carved foam machine guns made balsa aluminum tube stack Trimming Flying used 9-in PeckPolymers plastic prop large Peck-Polymers bearing 50 down thrust finished weight Fiat rubber about 70 grams slightly over 2 oz about 95 grams rubber used 4 strands 2 loops FAI 3/16 rubber total length rubber about 15-17 feet Tie rubber good knot lube Dow 33 Sig Rubber Lube proceed braid motor having buddy hold knotted end motor put about 17 winder turns 161 winder Now grab knotted end buddy still holding onto other end place both ends over index finger Pull out now 4-stranded motor several times until looks nicely braided Install motor plane test glide over tall grass glide reasonable try few winds launch plane slightly nose down everything still OK try about 30 winder turns Fiat flies large left circle left glide properly trimmed will fly slightly nose-up attitude glide very well braided motor fly fun about 100 winder turns 1600 total turns get 45 seconds duration go broke 130-plus turnsexcept cant get turns 161 winder motor too strong plane flew 153 beat Mike Midkiffs super Hellcat FAC Nats needed use 51 winder get over 2000 total turns Good luck yours Now Ithink Ill try Bill Winters Grumman bipes Editor old timer thinks Curtiss SOC-3 biplane has potential bipealso MAN gosh knows Manito Hutchinson continued page 45 quickly short useful lifetime Use about three coats nitrate dope clear epoxy final coat Give couple extra coats front portion stab since exhaust residue seems collect Fuselage Use metal straightedge cut Out sides add nose tail doublers Draw top view out piece 3/32 sheet dont cut out yet Pin bottom building board glue formers Hot Stuff works well fuselage construction Add sides check ing carefully alignment Sand fuselage assembly add top Build pylon gluing pylon core bottom ribs Add formers checking core truly vertical Add tip ribs sand cover 1/20 sheet fin built same way no central core needed Cut out two sides outline shown glue fin ribs side Hot Stuff Sand no rib edges stick out glue other side recommend epoxy finish like Hobbypoxy fuselage High-nitro fuels will destroy other finish very short time Cover fuselage tissue using nitrate dope better epoxy adhesion Apply couple coats nitrate lacquer sanding sealer two coats colored epoxy add additional coat epoxy front end Wet sand first coat #400 wet-or-dry sandpaper final coat #600 Rub out Dupont white polishFlying Dont too much hurry get out flying field Assemble model check thoroughly proper balance correct warps CG should shown plans balances tail-heavy move engine forward inserting additional plywood spacers between firewall engine mount engine should point straight ahead slightly left Hand glide model sure theres no stalling diving tendency Correct shimming front back stab pieces thin ply should definite glide circle right Run engine few times familiarize yourself pacifier fuel system make sure engine cutoff works first flight try 5-second run prop backwards engine running full bore probably wont tell much should get rid first flight jitters model does anything climb straight out shallow angle may have problems sharp turn may mean have misaligned rudder bent fuselage steep climb stage means have too much incidence now flights will made full power prop proper direction Reason hot free-flight pattern depends being trimmed certain speed various adjustments make deli cately balanced work against other properly maximum climb speed try work way up gradually power 11 find yourself undoing low speed adjust ments go along So bite bullet try full-power test fight about 3-second engine run model should climb straight Out steep angle Adjust thrust offset correct turning tendencies right launch Remove incidence model shows looping tendency short run has shallow climb angle nose begins tuck under add incidence shimming rear stab get going straight out no looping tendencies 3-second run increase engine run 2-second increments model tends go left longer engine runs add right rudder tab Use pieces 1/16 x balsa cut trailing edge section glued February 1980 125 ing compound Assemble complete model move pylon until ship balances indicated very slightly forward epoxy place 62 Sport Scale 3-4 channels 1911 AVRO D Worlds First Tractor Biplane Kit includes wing-warping cable-operated elevator rudder winy-building jig quick assembly wing panels pilot passenger heads written instroctions 15 x 20 decal sheet Pre-printed sheet metal parts Rigging fittings PLANS 135 x 50 designed poster displaying lull size profile perspective assembly drawings portrait brief history AV Roe IY Second sheet full size working plan detail construction drawings George Marsden 7621 Mary Cassaft Drive AEOBATIC AiRPLANES BY ROBT C MORRISON 19 SUPERB DRAWINGS 8395 us SOW POSTAC LOG S $100 appropriate side rudder Vary length get less tab effect thick built-up rudder section makes model fairly insensitive rudder tab adjustments makes easy fine-tune pattern liking trim method use similar used FM Power models obtain righf/right pattern complication auto-surfaces Thrust adjustments effective low speeds first few seconds after launch wing wash-in gives left roll tendency during right climb Rudder tab used correct later stages power pattern Youll probably end up slight amount left thrust plus some right rudder tab warps correct power pattern want get should straight climb about three seconds gradually changing right climb making about complete turn nine seconds model goes round round making too turns take out incidence straighten out speed up climb model climbs too straight up tends go left end power pattern add right tab stalls doesnt recover quickly engine cuts add incidence power pattern set check glide again Add weight rear fuselage until model stalls slightly glide remove bit youve achieved desired power pattern dont tilt stab change glide circle since will affect incident setting maybe mess up carefully-trimmed power pattern Instead add shims wing rails tilt wing glide circle should give about complete circle 40 seconds calm weather Tighten about 30 seconds wind comes up KIT $9400 PLANS $3000 Potomac Maryland 20854 GET ORGANIZED l-lee s set 0t4 stady Nes holds Doe 4 years tao8e 8 agaza1ea 4 MAG FILES $495 Send 5496 p1w SI 00 postage handeig DOU INOUSTRES PO BOX 386-K DOVER NH 08620 KITSO PLANS SACCESSORIES BABY ACE , P-Nur set N 8EAEtNGS ROWN CO-S ENGINES L JAPANESE tISSUE-PROPS 17 SPAN COMPLETE CATALOG $1001 KIT S449 MANY HARD SO FIND ItEMS Peek-hjaes BOX 2493-AMLA MESA CALIF 92041 CL Scale/Gretz continued page 54 quality lumber obtained can vary enor mously Densities can vary four pounds 20 pounds per cubic foot Eight- 12-pound baisa considered medium average weight Six pound less consideredcontest grade Logically should select lightest softest grades lightly stressed parts structure block wing tips sheet tail surfaces etc heavier hard grades wing spars fuselage longerons Grain direction important consideration primarily selection sheet balsa way grain runs through sheet largely controls its rigidity flexibility example sheet cut log trees annular rings run across thickness sheet A-grain tangent cut sheet will fairly flexible edge edge fact after soaking water some tangentcut sheets can completely rolled tube shape splitting other hand sheet cut annular rings running through thickness sheet C-grain quarter grain sheet will very rigid edge edge cannot bent splitting sheet called random cut B-grain grain direction less clearly defined sheet will have intermedi ate properties between C grain ac companying chart illustrates three basic grain types sheet balsa lists appropriate uses Remember selecting sheet balsa grain direction weight should unrelated consider ations can find light heavy A-grain light heavy B-grain light heavy C-grain Grain direction controls stifihess weight Mike Gretz Box 162 Montezuma IA 50171 RC Old Timers/Mathews continued page 33 Oshkosh happening stems perma nent site has constantly improved long-term lease agreement absolute assurance knowing what expect motel rneai arrangements before one-even arrives should perhaps consider EAA example re-evaluate own annual national con vention Omaha Nats rest contes tants 79 Nats flew either Lincoln Mead Nebraska RC Old Timers went far west edge Omaha site City Park overlooking lake neatly mowed grass surrounding directions Truly lovely site field placed crest flattened-off hill panoramic view surrounding countryside Although hardiy ideal way demonstrate thing public interested contestants other events attended rewarded lovely day friendly group mingle Although entry size rather disappoint ing calibre competition high several well-developed models above average times recorded John Pond writer demon strated brilliant minds required writing column John launched Dallaire receiver off locked keys car trunk Smart spite greatly enjoyed hospitality extended locals would gladly fly place another time beautiful Bill Berkely Models Effinger recently related something worth sharing first gas model built scale Buhi Pup Editor big like todays ers built removable wings bracing easy transportation built model ever seeing gas model Come think it likely first sca gas modeL six-foot span Brown Jr * 187 climbed like rocket took 1000 feet pull out engine quit. must have traveled 80 mph Transportation problem under 18 didnt have drivers license Taking model subway ferry bus trolley finally airport experience Mr Effinger recalling 1936 New York City lived Brooklyn says flying site problems something new Somehow want fly models always figure way Fast Richard Runs Behindi hope include brief overviews manufacturers lines Old Timer-oriented kits powerplants accessories future columns folks business invited advise what have Well start Dick Mathis Design Group formerly M&P Lone Oak Texas 75453_Fast Richards kit line includes Flying Quaker 84 Quaker 54 reduced size opposed Quaker Flash see MA 8-78 Dallaire 108 Comet Clipper has recently returned S M U complete PhD teaching fellowship running behind deliveries Clipper Dick advises anyone has made deposit refunds will made cannot wait early 1980 delivery plan kit review Carl Goldberg classic cabin job soon should pure delight Dick vivacious wife Mary K con templating adding 900 sq scaled-down Dallaire line watched several perform Ft Worth predict Dallaire Jr combined 40-size engine will 126 Model Aviation L ting advertisers mention read about Model Aviation
Edition: Model Aviation - 1980/02
Page Numbers: 43, 44, 45, 125, 126
Filling pacifier fuel system syringe George Sugiuchi appears pictures taken Tom Burrito Brother/Maverick ancestry quite evident design laminated curved wing tips add touch class Tom thinksthey aesthetic really dont take long make especial ly modern modeling adhesives Pictures indicate compactness 09 aircraft Editors Note pleased proud publish excellent free flight Its story began 1972- 73 pictures plans preparedand special challenge led its publication After reading introduction youll agree Tom made points What goes say about construction andflight ad ]ustments belong anyprofree-flighters scrap book adventure free flight designer dreams about George built Maverick de signs really liked way flew trouble winning Class because its small size ships kept beating him larger 19-powered models like Flying Burrito Brother Maverick held its own against ships its own size bigger bullies took advantage laws nature outclassed ng against smaller l also bad visibility problem since tended get lost easily both air ground obvious solution cant beat join building top-of-the-line Class ship George usually went contests small car phoned day asked what thought about performance capability 09-powered Class model since hadnt seen around thought about Georges idea made sense Cox TD 09 has highest power-to-weight ratios engine currently available hadnt too widely THIS article dedicated George Sugiuichi rare trusting souls spirit want top performing model fits easily small carbut ship bigger Ajobs cant bullythen instead ofa1AAyou should go 09 route ship entirely new design developed out 1AA Maverick U Tom Hutchinson February 1980 43 used because cant readily switch engines fly two classes same modeL model built strictly Class competition engine would potent because its larger size higher power Youd also have model didnt take up very much room car typical Since George liked way Maverick flew decided new design would based its proportions much possible made some quick calculations phoned back di mensions George next day showed up complete set working drawings approvaL Within two weeks first prototype completed ready test flights missed witnessing initial test flights George reported back enthusiasm day after ship flown right off board same good flight characteristics also mentioned starting another right away backup model Class Bob Ohly accompanied George first testing session subsequent ones wanted build models too asked George borrow set working drawings decided make up set inked plans After seeing George thought might have come up design worth publishing knew good-flying airplane distinctive concept well-drawn set plans experienced author write text name came easily enough Manito East LA Spanish forlittle brother felt appropriate con sidering its Burrito Brother/Maverick ancestry took some photos George Lake Elsi nore flying session sat down type writer spring 1973 prepare article rough draft half-completed came back spring vacation leam shocking news George died sudden heart attack away Since provided much inspiration project just put away plans photos rough draft After getting married starting new career teaching moving several times Id almost forgotten about Manito until last fall Thats editor wondered print good free flight designs suitable publication werent just another lookalike s jogged memory went up attic pulled out Manito plans see would meet stringent require ments After six years Manito still looked like good idea Flying fields engine runs auto mobiles have shrunk size compact Class model better-than-A perfor mance should still attractive fliers editor agreed Manito will finally appear print just George Bob envisioned Manito originally designed around Cox TD 09 alternative power choices Any plain-be aring15 like OS Max Enys would provide comparable performance would weigh about ounce design would probably able handle power ball-bearing 15 like ST Gi 5 extra engine weight would probably cause glide suffer 09 15 engine total weight model shouldnt exceed 12 oz Georges models weighed about 10 oz TD 09 Construction model will go together much quickly parts cut out advance like kit parts two pieces same shape needed trace outline out drafting vellum stick balsa removable rubber spray cement like 3M Spra Mount ribs can cut out individually using plywood template greater uniformity will occur stack-cut Dremel jigsaw bandsaw Cut out required number rib blanks length balsa sheet least George adjusts engine Manitoin ap proved manner add Both George Tom use squeeze-off timers simplicity operation flood-off timer excess fuel dumps its weight carried during glide 1 inches wide Stick tracing rib pattern top sheet pin whole stack together running pins both top bottom cutting ribs out run stack through saw same direction both upper lower surfaces Cut spar notches saw still stacked together Sand entire unit smooth leaving trailing edge portions ribs slightly oversize allow sanding final contour later Wing Construction Start wings lamina ting curved tip pieces together Best way cutout form scrap balsaa cheaper substitute corrugated cardboard inside outline wing tips Strip some strips soft 1/16 sheet should slightly over length about 18 inches Bend four strips around form holding against form pins Now use Hot Stuff bond laminations together might wise wax outside edge form crayon prevent sticking Repeat other tips Now can pin leading trailing edges down over plan splice curved tips sure right wing has sufficient wash-in Block up leading edge dihedral joint piece 3/16 balsa About halfway out 44 Model Aviation Close- up ot front end snowing Cox TO 09 installed its Kraft/ Hayes mount Plans show DT snuffer tube hole details evident pic Twin-legged gear provides soft landings Posed during early morn testing session Lake Elsinore George demonstrates proper position hand- launching mode Tom says pressure system pacifier simplest light consistent model shown Tom lets tank hang outwont soak inside fuse lage breaks FULL SIZE PLANS AVAILABLE SEE PAGE 128 r-6 PLYWOOD DIHEDRAL BRACE LI6SHT VERTICAL WEB WING LE 1A4SO 3YIC WASH-A OS RIGHT WIPB3 \MAIN TIP SPARS 8SO BALSA 1A6I/8 TOP SPAR l/83/16 SPRUCE- DOUBLE N\BOTTOMlS~R-TEPOXY BALSA I/8SOVENT N DOUBLER IIRA3B / I5RTF 1rnT33SHT THIN ALUMINUM AROUND LE4PCS I/I6 I/4 I/8SHTp3PCS I/l63/I6 SOFT 1I1fE 3/I6SOFT SHT F] WIREII -ICOBIS / I/I63PC& I/BSOLI 3/32HT : RNE7 K PYLON RIB 3/32SHTfMAKE 4] PYIDiS SIDES I/SIX BAT& BALANCE PONTPYLON JjL[3ARSG J4[I-BPLY HOORS TOFORRR IPYLON CORE I/16HDSHTSPRUCE - ISECURE IJ{J]STAR PLATFORM PAL FIER j I/8SOFT IMAKE 2DOUBLERI I/16SHTTOP I/IICSHT 3I4ISlB -.ii 7 T0K I11 TOM HUTCHINSON N TIP RIBS PRITCH IINDEEP FOR TOP MAIN SPAR ALL WIND & STAR RIBS II6SHT ]STABFALSE RIBS LN Sd-IT] TYPICALFIREWALL CROSS SEC TIOS DIHEDRAL DETAIL DIHEDRAL BRACE I1R PLY FIN RIBS I/IRSI-IT FIN SIDES I-2DSHT ID -L4SdT FORMER[SOFTI 2 SMALLPERFECT 214 dEAD-OUT EYELETS SCRAP FILLER DDEIBLER[2] VIBSHT-7N IIi GLASS COTH-ASTLINE HOORSNUFFER TUBE L2LONGZ3/32OD AUMNLB4 FORMERS BETWEEN DOUBLERS IICSHT I4OD FUSELAGE SIDES l/16SHT FORMERS 3/325HT NG KRPRTflRYES OR TAICRE ORMOUPITDbyBobORy 5/72 ]TATONE MT WILL REOIJRE SCBIE EXTRA BALSA FAIRB dihedral joint block up leading edge piece 3/32 balsa left wing center panel both tip panels built flat board Cut diagonal ribs little oversize thick ness allow final sanding contour after building Cut spar slots diagonal ribs after assembly sharp razor blade metal straightedge using slots straight ribs guide Use 5-minute epoxy gluing dihedral joints doesnt warp fills gaps dries fast enough both center tip joints can made night Sanding dihedral angles made easier top spars tips installed until after tip dihedral joint set center brace full-depth piece 1/16 ply After center joint has made slot center three ribs two hacksaw blades taped together brace will easily slip place can now install spar webbing grain vertical step will provide large part wings bending stiffness dont Omit Stabilizer model has long tail moment arm its very necessary keep stabilizer weight minimum Laminate leading trailing edges soft balsa strips manner similar wing tips except no forms re quired Just set row pins along inside outline add strips outer layer pins bond together Hot Stuff Cut down tip stab ribs full-size center ribs Place rib over spar cut off proper length leading trailing edges Use rib template trim right depth cutting off top side Covering Cover wing stabilizer can allowed cure fuselage being built Japanese tissue best covering material light model although 00 Silkspan would also suitable Dont use plastic films since too flexible heavy Dont skimp finish Too little finish will result model becomes fuel-soaked Continued page 125 February 1980 45 George demonstrates akeoff VTO part present AMA rules California con tests still allow Lighter- colored panels tissue separating darker- colored bottom panels make good contrast visibility design years standing Manito has planform dateless Ship state art old timers will sense familiar things time consuming way it sure looks best Add balsa gun fairings water shrink entire covered plane like shrink wing washout rather build used about Vi inch washout wing tip Dope plane two coats thinned dope preferably nitrate have added appropriate amount plasticizer cowl section mentioned before covered filled several coats dope talcum powder followed sanding Take time because cowl must look like metal rather grainy balsa really want niftylooking Fiat After clear doping select favorite Fiat color scheme chose sand spinph effect yellow cowling light grey undersurfaces used Floquil Model Railroad paints thinned very thin nitrate dope sprayed airbrush After adding colors details such panel lines can added soft grey pencil fixed coat clear nitrate sprayed Fiat built gear up simulated gear doors wheels bond paper glued place rubber cement numbers cut either black red tissue doped Next add pilot carved foam machine guns made balsa aluminum tube stack Trimming Flying used 9-in PeckPolymers plastic prop large Peck-Polymers bearing 50 down thrust finished weight Fiat rubber about 70 grams slightly over 2 oz about 95 grams rubber used 4 strands 2 loops FAI 3/16 rubber total length rubber about 15-17 feet Tie rubber good knot lube Dow 33 Sig Rubber Lube proceed braid motor having buddy hold knotted end motor put about 17 winder turns 161 winder Now grab knotted end buddy still holding onto other end place both ends over index finger Pull out now 4-stranded motor several times until looks nicely braided Install motor plane test glide over tall grass glide reasonable try few winds launch plane slightly nose down everything still OK try about 30 winder turns Fiat flies large left circle left glide properly trimmed will fly slightly nose-up attitude glide very well braided motor fly fun about 100 winder turns 1600 total turns get 45 seconds duration go broke 130-plus turnsexcept cant get turns 161 winder motor too strong plane flew 153 beat Mike Midkiffs super Hellcat FAC Nats needed use 51 winder get over 2000 total turns Good luck yours Now Ithink Ill try Bill Winters Grumman bipes Editor old timer thinks Curtiss SOC-3 biplane has potential bipealso MAN gosh knows Manito Hutchinson continued page 45 quickly short useful lifetime Use about three coats nitrate dope clear epoxy final coat Give couple extra coats front portion stab since exhaust residue seems collect Fuselage Use metal straightedge cut Out sides add nose tail doublers Draw top view out piece 3/32 sheet dont cut out yet Pin bottom building board glue formers Hot Stuff works well fuselage construction Add sides check ing carefully alignment Sand fuselage assembly add top Build pylon gluing pylon core bottom ribs Add formers checking core truly vertical Add tip ribs sand cover 1/20 sheet fin built same way no central core needed Cut out two sides outline shown glue fin ribs side Hot Stuff Sand no rib edges stick out glue other side recommend epoxy finish like Hobbypoxy fuselage High-nitro fuels will destroy other finish very short time Cover fuselage tissue using nitrate dope better epoxy adhesion Apply couple coats nitrate lacquer sanding sealer two coats colored epoxy add additional coat epoxy front end Wet sand first coat #400 wet-or-dry sandpaper final coat #600 Rub out Dupont white polishFlying Dont too much hurry get out flying field Assemble model check thoroughly proper balance correct warps CG should shown plans balances tail-heavy move engine forward inserting additional plywood spacers between firewall engine mount engine should point straight ahead slightly left Hand glide model sure theres no stalling diving tendency Correct shimming front back stab pieces thin ply should definite glide circle right Run engine few times familiarize yourself pacifier fuel system make sure engine cutoff works first flight try 5-second run prop backwards engine running full bore probably wont tell much should get rid first flight jitters model does anything climb straight out shallow angle may have problems sharp turn may mean have misaligned rudder bent fuselage steep climb stage means have too much incidence now flights will made full power prop proper direction Reason hot free-flight pattern depends being trimmed certain speed various adjustments make deli cately balanced work against other properly maximum climb speed try work way up gradually power 11 find yourself undoing low speed adjust ments go along So bite bullet try full-power test fight about 3-second engine run model should climb straight Out steep angle Adjust thrust offset correct turning tendencies right launch Remove incidence model shows looping tendency short run has shallow climb angle nose begins tuck under add incidence shimming rear stab get going straight out no looping tendencies 3-second run increase engine run 2-second increments model tends go left longer engine runs add right rudder tab Use pieces 1/16 x balsa cut trailing edge section glued February 1980 125 ing compound Assemble complete model move pylon until ship balances indicated very slightly forward epoxy place 62 Sport Scale 3-4 channels 1911 AVRO D Worlds First Tractor Biplane Kit includes wing-warping cable-operated elevator rudder winy-building jig quick assembly wing panels pilot passenger heads written instroctions 15 x 20 decal sheet Pre-printed sheet metal parts Rigging fittings PLANS 135 x 50 designed poster displaying lull size profile perspective assembly drawings portrait brief history AV Roe IY Second sheet full size working plan detail construction drawings George Marsden 7621 Mary Cassaft Drive AEOBATIC AiRPLANES BY ROBT C MORRISON 19 SUPERB DRAWINGS 8395 us SOW POSTAC LOG S $100 appropriate side rudder Vary length get less tab effect thick built-up rudder section makes model fairly insensitive rudder tab adjustments makes easy fine-tune pattern liking trim method use similar used FM Power models obtain righf/right pattern complication auto-surfaces Thrust adjustments effective low speeds first few seconds after launch wing wash-in gives left roll tendency during right climb Rudder tab used correct later stages power pattern Youll probably end up slight amount left thrust plus some right rudder tab warps correct power pattern want get should straight climb about three seconds gradually changing right climb making about complete turn nine seconds model goes round round making too turns take out incidence straighten out speed up climb model climbs too straight up tends go left end power pattern add right tab stalls doesnt recover quickly engine cuts add incidence power pattern set check glide again Add weight rear fuselage until model stalls slightly glide remove bit youve achieved desired power pattern dont tilt stab change glide circle since will affect incident setting maybe mess up carefully-trimmed power pattern Instead add shims wing rails tilt wing glide circle should give about complete circle 40 seconds calm weather Tighten about 30 seconds wind comes up KIT $9400 PLANS $3000 Potomac Maryland 20854 GET ORGANIZED l-lee s set 0t4 stady Nes holds Doe 4 years tao8e 8 agaza1ea 4 MAG FILES $495 Send 5496 p1w SI 00 postage handeig DOU INOUSTRES PO BOX 386-K DOVER NH 08620 KITSO PLANS SACCESSORIES BABY ACE , P-Nur set N 8EAEtNGS ROWN CO-S ENGINES L JAPANESE tISSUE-PROPS 17 SPAN COMPLETE CATALOG $1001 KIT S449 MANY HARD SO FIND ItEMS Peek-hjaes BOX 2493-AMLA MESA CALIF 92041 CL Scale/Gretz continued page 54 quality lumber obtained can vary enor mously Densities can vary four pounds 20 pounds per cubic foot Eight- 12-pound baisa considered medium average weight Six pound less consideredcontest grade Logically should select lightest softest grades lightly stressed parts structure block wing tips sheet tail surfaces etc heavier hard grades wing spars fuselage longerons Grain direction important consideration primarily selection sheet balsa way grain runs through sheet largely controls its rigidity flexibility example sheet cut log trees annular rings run across thickness sheet A-grain tangent cut sheet will fairly flexible edge edge fact after soaking water some tangentcut sheets can completely rolled tube shape splitting other hand sheet cut annular rings running through thickness sheet C-grain quarter grain sheet will very rigid edge edge cannot bent splitting sheet called random cut B-grain grain direction less clearly defined sheet will have intermedi ate properties between C grain ac companying chart illustrates three basic grain types sheet balsa lists appropriate uses Remember selecting sheet balsa grain direction weight should unrelated consider ations can find light heavy A-grain light heavy B-grain light heavy C-grain Grain direction controls stifihess weight Mike Gretz Box 162 Montezuma IA 50171 RC Old Timers/Mathews continued page 33 Oshkosh happening stems perma nent site has constantly improved long-term lease agreement absolute assurance knowing what expect motel rneai arrangements before one-even arrives should perhaps consider EAA example re-evaluate own annual national con vention Omaha Nats rest contes tants 79 Nats flew either Lincoln Mead Nebraska RC Old Timers went far west edge Omaha site City Park overlooking lake neatly mowed grass surrounding directions Truly lovely site field placed crest flattened-off hill panoramic view surrounding countryside Although hardiy ideal way demonstrate thing public interested contestants other events attended rewarded lovely day friendly group mingle Although entry size rather disappoint ing calibre competition high several well-developed models above average times recorded John Pond writer demon strated brilliant minds required writing column John launched Dallaire receiver off locked keys car trunk Smart spite greatly enjoyed hospitality extended locals would gladly fly place another time beautiful Bill Berkely Models Effinger recently related something worth sharing first gas model built scale Buhi Pup Editor big like todays ers built removable wings bracing easy transportation built model ever seeing gas model Come think it likely first sca gas modeL six-foot span Brown Jr * 187 climbed like rocket took 1000 feet pull out engine quit. must have traveled 80 mph Transportation problem under 18 didnt have drivers license Taking model subway ferry bus trolley finally airport experience Mr Effinger recalling 1936 New York City lived Brooklyn says flying site problems something new Somehow want fly models always figure way Fast Richard Runs Behindi hope include brief overviews manufacturers lines Old Timer-oriented kits powerplants accessories future columns folks business invited advise what have Well start Dick Mathis Design Group formerly M&P Lone Oak Texas 75453_Fast Richards kit line includes Flying Quaker 84 Quaker 54 reduced size opposed Quaker Flash see MA 8-78 Dallaire 108 Comet Clipper has recently returned S M U complete PhD teaching fellowship running behind deliveries Clipper Dick advises anyone has made deposit refunds will made cannot wait early 1980 delivery plan kit review Carl Goldberg classic cabin job soon should pure delight Dick vivacious wife Mary K con templating adding 900 sq scaled-down Dallaire line watched several perform Ft Worth predict Dallaire Jr combined 40-size engine will 126 Model Aviation L ting advertisers mention read about Model Aviation