I just stoc really goi d flight lying about flher thats plane ex lines real nice Stunts fast great payoff enjoyment ior few aol lars worth balsa ply about eight hours total design/construction time start finish Indeed look over plans photos youll note aircraft quite easy build Simplicity can very effective used properly design criterion aint needed aint will find boils down fast economical construction results flying time Construction straight forward newcomers mind build ing instructions follow few recommend Tee Dee plans tne engine model Should want use conventional 049 attached fuel tank can easily modify front end model suit particular engine overall speed will down Tee Dee engine models maneuverability will still great Small rubberbands used secure fuel tank fuselage secur- ing landing gear landing gear stop kind mounting quick simple provides bit shock resistance times landings less ideal lightly Sand WLLIL modet ctI1u uI cially wing Go easy use epoxy sure wipe excess glue model Construction Build model flat working surface Cut out parts small table-top hobby saw such made Dremel will really speed up cutting chores especially plywood parts have such saw use steel straightedge sharp hobby knife balsa parts Try make several light cuts instead heavy cut cutting mdi72 Model Aviation Left The basic pro-cut parts Tee Dee version Make own kit first fast easy construction Right Dremel table saw used easily cutting wing slot fuseiage biank Note pre-driiied 1/a-in holes front rear wing siot Left Front end tank-mount 049 Cox engine Only front needs changed Note triangle stock runs top bottom behind firewall adds much strength Right Basic wing component layout Top portion plc shows required pieces Follow directions text obtain minimum balsa waste parts Bottom photo shows correct location pieces Left Completed elevator/stabilizer unit top bottom views Note tlie ply doubler elevator bottom narrow gap atthe hinge line author used cloth hinges Right Installed tail feathers elevator must clear rudder proper movement Remove excess glue vidual parts Use coping saw ply wood items Take time careful Epoxy refers 5-mm type such Devcon brand Cyanoacrylates CyA refers thin thick types such Carl Goldberg Jet Super Jet Wing Select nice straight x 4 x 36 balsa sheet medium grade should have no splits soft spots etc wing leading section cut piece Place wing tip plan over balsa sheet locating close end sheet Mark use dressmakers pattern wheel connecting dots pen cut out main wing section remaining rectangular piece balsa sheet cut piece x 1 x 11 Take pen draw diagonal line corner corner Cut trailing edge pieces balsa sheet Glue two trailing edge pieces main wing section making sure wing flat no gaps mating edges Use awl first poke holes mating edges glue acetone-based cement such Ambroid Use double-gluing technique Apply liberal coating cement wipe off excess allow glue dry thoroughly use acetone cement instead CyA will allow wing sanded smooth easily hard glue line common CyA Cut opening lead-out guide Locate position bellcrank January1985 73 Full-Size Plans Available. See Page 180 DO NOT FLY MODEL NEAR POWER L*ES LEASING EASE GEWBIN LEADOUTGUIBELLCRANK SVSA PLYMOUNT SYD PLY TVSA AC GRILL lIEU ~ISLAA DRILL TIES FUSELAGE DOWLERS ENGINE SEESVSA PLYEAGOJY SCE ELEV DOUBLER RUOER DOUSER IA BALSA ACEET TWO SEACRSEO EPOXY LEAGOUT GLEE TALEASOUT SEE fAGITEGiDLONE CENT COW WISERSIXE OF WING LEASING ERGE NIYR BALSA GREET GROWl GRAMWINGTIP WEIGHT I_ ~~I7zzr~ LEASOITTELLORANAIWING PLAN 41--______TOP VIEW ROT~ RELLCRATE GLUE LISE Al 7 FIN IIS BALSA SlEET 7 LiRETFECT IS WEASTAUC TEEEE FUSELAGE TOP VIEW SOOU DAGGRESO RON AM SORARA APE CAT FRAGI LIATIT GROILMA GRGOF BALSAVA MARC WIRE NOTICE GRAIN CIRECTIOWPO5HTOR RUR VIR BALSA SlEET -j 0R BALSA WEET ARGEMA GRADESHOWN IN TYPEAL AND USE LIBERAL APPLICATION OF CYBAAOMORYLGTE STABJO BALSA SlEET fl~rELEV AYL OATSPLO ELEVATOR APLINLER GLUE TO ASMIEROCE OF ELEVATOR IA BALSA SlEET GROOM GRACE OECESS FIN VIA AlTO FSELACE/ FINI [I (IA MURIC WIRE r IYM AGd FUSELAGE- SIDE VIEW I14 BALSA SSEET FGSELAGE QATLINE UD\ i INLLCTAM15 EISA WIRENYLOI CONTRA TORI RUWASORTRW LME VIA ADA VIVA LONG ERIC GRRELASEIRA SEAR STOPIVR MUSIC WINE IVIS MASIC AIRE LANDING PATTERN RJLO LIGYT SAM WELL ANO GO SUNDANER I~IABBWRIf~EST UEN ~45N mount Sand wing thoroughly round edges Epoxy lead-out guide bottom wing wiping excess epoxy around plywood guide making small fillets go Make sure guide right angle wing Let dry thoroughly Indent side plywood bellcrank mount awl will make glue bond stronger Place ply mount its proper location bot tom wing mark around soft pencil Again using awl poke holes balsa wing surface going clear through wood Glue mount wing epoxy wiping ex cess glue around mount making small fillets same time completely dry locate center mount drill hole through mount wing Use back-up board drilling avoid tearing up wood drill goes through stall bellcrank yet Tail Cut components AR x 3 x 36 balsa light-medium grade Note grain direction shown plan various parts Sand round cor ners Place fin flat surface glue rudder CyA prop er offset angle Attach rudder doublers thin CyA side lower bot tom rudder piece Sand fin/rud der unit Trial-fit elevator stabilizer together Make sure mating hinge line has no gaps Use masking tape hold parts together side time sand elevator stabilizer unit Round edges Cut out finish-sand plywood elevator doubler Indent mating sur faces awl preparatory gluing Attach doubler underside elevator thick CyA Sand unit well making sure leading edge plywood doubler beveled allow Continued page 173 Left Side-mounted Tee Dee has minimal frontal area low drag clean appearance Rubberbands hold wedge tankfor easy mount ing Right Underside clean uncluttered though controls open foreasyaccess adjustment photos David M Kirk 74 Model Aviation eported thai worked better aipan although well carbon ibre props Theyre now available buck can afford give away ittle bit performance later iow work out Charlie Johflson 3716 Ingraham St Diego CA 92109 CL Navy CarrierlPerry Continued page 71 lights around country total 41 lass I/TI 59 Profile flights ecorded contests occurred uring summer months Only lights timing data avail ble used Flights ranked Light score landing scale points ot considered high speed times y low speed times form some statisti al data might allow us se stack up against Carrier mod lers rest United States ercentile rankings should interpreted s follows 90 percentile flight score igh/low speed time would better 0 percent flights used nalysis 67 percentile score better two thirds flights etc look differences percentile inkings shows general Class II tips outperform Class models Consid ring number combined events areas modeler faced choice f building either Class Class II iodel might ahead build Class II iodel first also ran correlations between high iw speeds between overall score oth high low speeds using rank-dif rence method Scale classes little correlation between ranking based nly low speed ranking based high speed indicates tradeIfs between high low-speed perfor iance common may also indicate lange design philosophy larger iodels appearing trading high speed tter low speed large propor older models still use high/low correlation Profile uch higher probably reflection fact Profile models have ways larger couldnt grow ie same extent Scale ships could ay also indicate modelers willing vote time good low-speed perfor ance also working improve high ieed scores classes high-speed ranking cor lated very well overall flight score nking best match iddle lower scores other words great high speed didnt guarantee high ierall score worse high speed came lower overall placing cely become high speed score gan dominate total flight score look top 12% overall ores showed quite different relation tip case low speed also Tailwheel Assemblies Now three sizes4 te9 lbs$1295 spring steellOts 18 lbs$1495 tailwheelsI9lhsmsdnp$1595 OhIo l2lo Also within top 12% groupings flight score ranking low speed ranking either identi cal varied no place message seems cleara very good low speed will almost guarantee very good flight score range low speed scores constituted top 12% grouping 108 160 seconds Class I/Il 143 227 seconds Profile Richard L Perry 7578 Vogels Way Springfield VA 22153 SundancerlNunes Continued page 74 elevator function properly tached fuselage Fuselage Note small triangles plan indicate actual outline profile fuselage Mark cut fuselage sheet x 3 x 36 balsa medium grade Make sure no cracks splits etc balsa Mark wing slot area fuselage blank Drill A-in hole end slot area Connect tops bottoms holes front back line cut balsa slot being careful keep cutting blade right angle fuselage side Similarly mark remove wood sta bilizer slot Mark remove wood rear top fuselage area make /6-in-deep recess slot ihat will receive fin Try make slot wider needed ensure good parts fit Cut out plywood fuselage doublers Locate holes outside face doublers Use awl make indenta tions inside face doubler mating balsa fuselage area Epoxy 216-223-1950 SORRY correct telephone number 6 FIBERGLASS MASTER 0 7O3 89O-6O17 0 Pleats make change page 82 mber issue Model Aviation elsewhere. JanUary1985 173 MONOCOUPE D14SPIPER PA17 Engines 2 Cycle Glow 90-12VAGABOND 4 Cycle Glow 90 -12Wingspan 84 Flying Weight 12 lbsWing Area 1280 sq Wing Design Foam Wing Design Fuseisge Built-upFoam CweslBslsa Sheeted Cowl F-gleesCowl Fiberglass Spsn 94Flying Weight 10 lbs wISi Engine Engines 2 Cycle 60 91 4 Cycle 90-120 25% Scale Size Henry Neighs N SUPER STAR Wingspan 84 Wing Area 1135 sq Cowl Fiberglass Canopy Formed Plastic Flying Weight 11 14 lbs Wing Design Foam Balsa Covered Fuselage Built-up Semi Monocouque Design Balsa Engines Large Glow Small Gas Manufacturers PustThreads3rues Inserts 440 6/32 8/32 1/420 FsstTuWlqShetlngSsSO$1995 Ve50 $595 OHIO SUPERSTAR PRODUCTS Inc 11376 Ridgeway Rd. Kensington OH 44427 LDHOODS Cereal ILD BLUE box Airplanes Fly AgaIn Scoot CH $500 Reproduction P40 ZERO SAF-CLITE MooELe Box 62M 5seiIle Ml45Oee PAW DIESELS Englands Finest 049 to 35 New low low prices Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 SILICONE gasoline 10 foot coilsTUBING 10.062 092 125U S POST S/coil 235 265 325 545/COIL LARRY DODGE AERO INC 10210 MANNINGSTILLWATER MN 55082 * SCALE DOCUMENTATION * SCALE DRAWINGSMODEL PLANS PHOTOS w BOOKS EPLA-TECH 1985 INTERNATIONAL AIRPLANE CATALOG48500 MCKENZIE HWY $300VIDA OREGON 97488 ply doublers correct positions clamp rubberband place until dry Drill engine mounting holes land ing gear hole landing gear stop hole Use back-up piece wood avoid splintered exit hole Drill through engine area now fuselage can laid flat Keep drill right angle work Sand round corners Fuel proof engine area epoxy Assembly Slide main wing through fuselage wing slot sure wing positioned right angles fuselage both vertically horizontally Take time installation get correct satisfied give liberal ap plication thick CyA joint area like apply side time let ting dry doing other side Allow dry undisturbed make small fillets around wing/fuselage connection micro-balloons epoxy Wipe excess fillet material model let dry Drill holes through elevator ply doubler control horn Hinge elevator stabilizer using either small cloth hinges did own sewn hinges Insert elevator/stabilizer unit fuselage slot Make sure assembly both horizontally vertically square fuselage satisfied use CyA attaching fuselage Trial-fit fin/rudder rear fuselage Open up elevator cutout required ensure ease elevator movement Bevel rudder doublers sandpaper-covered dowel step satisfied fit align ment attach fin/rudder unit fuselage thick CyA sure sand bottom rudder match fuselage secure thick CyA surface filling repair dings final sanding Finish model like painted dope used self-stick trim sheet high lights original trim pattern shown plan use desired Form landing gear shape cut landing gear stop size Insert landing gear through fuselage landing gear stop its position Rub berband together Attach slim-type wheels favorite wheel retainers Make sure wheels rotate freely Bolt bellcrank mount Attach nylon control horn elevator doubler shape attach pushrod Shape glue tailskid bottom fuselage epoxy Attach braided cable control line leadouts bellcrank thread through ply lead-out guide make ends finished loops Glue outboard wing tip weight place thick CyA Pre-flight check model bal anced shown plans check see have equal amount up down elevator movement Select con trol horn hole provides control response want Eyeball finished model angles Check make sure nothing warped lopsided critical look over work anything looks could use bit extra work before going fly Flight time Take completed Sundancer flight lines handle battery fuel head out favorite flying site some fun Dont surprised fellow modelers walk over admire plane because has character wont let down doing thing th air either Just sure flight lines good engine will offer consistent runs Oh take plenty fuel. might flying Sundancer quite awhile bird wants fly get out have ball Im very pleased results Ive model will too Fly safely tell someone new about model building flying DIII Materials l/ x 3 x 36 Balsa sheet medium grade 1V x 4 x 36 Balsa sheet medium grade 1V6 x 3 x 36 Balsa sheet light/medium grade lY2 x 6 x 12 Aircraft plywood lA6-in-dia Music wire 12-in Belicrank unit 1Flexible lead-out cables 1Small RC nylon control horn 2lY-in-dia Slim-style wheels 4Wheel retainers 1Perfect #19 Wedgtank oz 1049/O5l Engine prop 4Engine bolts w/lockwashers lock units Adhesives epoxy cyanoacrylates hinge material small fuel tubing finishing paints coverings small rubberbands Stunt DesignlRabe Continued page 77 using shortcut across grass Wouldnt know slow speed rudder nearly useless rolling out Mustang must carefully control pitch attitude rate let tail settle slowly residual rudder effectiveness will hold hold tail up too long let drop rapidly brakes will required stay concrete until locked tail wheel takes over roll-out gets easy again What has CL Stunt dont know about airplanes always got light outsides suggests left yawing gyro scopic precession stronger simultaneously-occurring right yaw P effects Ill admit precession V2-oz prop 3- 4-lb airplane probably doesnt supply lot yaw force first dont think much yaw re quired noticeably reduce tension outsides second dont think P effect much noticed Stunt ship P increases increasing angle attack because angle relative wind increases does differ ential thrust ascending descend ing blades prop full-size plane may reach large pitch angle rela tive wind slowed near stalling during accelerated pitch maneuvers See Fig 1 P will large angle tack large Most Stunt ships however have large full-span flaps dramati cally reduce body angle relative wind effective angle attack approaches stall See Fig 2 full-size planes stall angle always approximately same whether angle attack reached slow flight maneuvering loads 174 Model Aviation ACCURATE ABLE EASYTOREAD ACCUTACH NOW IN TWO MODELS 3 FUNCTION4 FUNCTION ACCUTACH ACCUTACH 2 79958995 Digital LCD tachometerSame useful capabilities has dual scale lOX-bOXas ACCU-TACH 1 stable RPM readoutincludes DC ammeter Full scale voltmeter canused check servo curbe used check/cyclerent Will find worn bindmost TXIRX battery com-ing stalled servo condi bos Reads loadtions w/SCA1 up 20 voltsAdd function ATi ACCESSORIESor OSAl- Quarter Scale Adaptor SCAl -Servo Current Adaptor ATi & AT2-500ma load . 995 Airtronics Futaba Kraft. 995 AVIINIrii3S Send check MO NorCal AVIONICS Inc P0 Box 70956 Sunnyvale CA 94086 Calif add 6% tax Add $2 S&H See dealer first
Edition: Model Aviation - 1985/01
Page Numbers: 72, 73, 74, 173, 174
I just stoc really goi d flight lying about flher thats plane ex lines real nice Stunts fast great payoff enjoyment ior few aol lars worth balsa ply about eight hours total design/construction time start finish Indeed look over plans photos youll note aircraft quite easy build Simplicity can very effective used properly design criterion aint needed aint will find boils down fast economical construction results flying time Construction straight forward newcomers mind build ing instructions follow few recommend Tee Dee plans tne engine model Should want use conventional 049 attached fuel tank can easily modify front end model suit particular engine overall speed will down Tee Dee engine models maneuverability will still great Small rubberbands used secure fuel tank fuselage secur- ing landing gear landing gear stop kind mounting quick simple provides bit shock resistance times landings less ideal lightly Sand WLLIL modet ctI1u uI cially wing Go easy use epoxy sure wipe excess glue model Construction Build model flat working surface Cut out parts small table-top hobby saw such made Dremel will really speed up cutting chores especially plywood parts have such saw use steel straightedge sharp hobby knife balsa parts Try make several light cuts instead heavy cut cutting mdi72 Model Aviation Left The basic pro-cut parts Tee Dee version Make own kit first fast easy construction Right Dremel table saw used easily cutting wing slot fuseiage biank Note pre-driiied 1/a-in holes front rear wing siot Left Front end tank-mount 049 Cox engine Only front needs changed Note triangle stock runs top bottom behind firewall adds much strength Right Basic wing component layout Top portion plc shows required pieces Follow directions text obtain minimum balsa waste parts Bottom photo shows correct location pieces Left Completed elevator/stabilizer unit top bottom views Note tlie ply doubler elevator bottom narrow gap atthe hinge line author used cloth hinges Right Installed tail feathers elevator must clear rudder proper movement Remove excess glue vidual parts Use coping saw ply wood items Take time careful Epoxy refers 5-mm type such Devcon brand Cyanoacrylates CyA refers thin thick types such Carl Goldberg Jet Super Jet Wing Select nice straight x 4 x 36 balsa sheet medium grade should have no splits soft spots etc wing leading section cut piece Place wing tip plan over balsa sheet locating close end sheet Mark use dressmakers pattern wheel connecting dots pen cut out main wing section remaining rectangular piece balsa sheet cut piece x 1 x 11 Take pen draw diagonal line corner corner Cut trailing edge pieces balsa sheet Glue two trailing edge pieces main wing section making sure wing flat no gaps mating edges Use awl first poke holes mating edges glue acetone-based cement such Ambroid Use double-gluing technique Apply liberal coating cement wipe off excess allow glue dry thoroughly use acetone cement instead CyA will allow wing sanded smooth easily hard glue line common CyA Cut opening lead-out guide Locate position bellcrank January1985 73 Full-Size Plans Available. See Page 180 DO NOT FLY MODEL NEAR POWER L*ES LEASING EASE GEWBIN LEADOUTGUIBELLCRANK SVSA PLYMOUNT SYD PLY TVSA AC GRILL lIEU ~ISLAA DRILL TIES FUSELAGE DOWLERS ENGINE SEESVSA PLYEAGOJY SCE ELEV DOUBLER RUOER DOUSER IA BALSA ACEET TWO SEACRSEO EPOXY LEAGOUT GLEE TALEASOUT SEE fAGITEGiDLONE CENT COW WISERSIXE OF WING LEASING ERGE NIYR BALSA GREET GROWl GRAMWINGTIP WEIGHT I_ ~~I7zzr~ LEASOITTELLORANAIWING PLAN 41--______TOP VIEW ROT~ RELLCRATE GLUE LISE Al 7 FIN IIS BALSA SlEET 7 LiRETFECT IS WEASTAUC TEEEE FUSELAGE TOP VIEW SOOU DAGGRESO RON AM SORARA APE CAT FRAGI LIATIT GROILMA GRGOF BALSAVA MARC WIRE NOTICE GRAIN CIRECTIOWPO5HTOR RUR VIR BALSA SlEET -j 0R BALSA WEET ARGEMA GRADESHOWN IN TYPEAL AND USE LIBERAL APPLICATION OF CYBAAOMORYLGTE STABJO BALSA SlEET fl~rELEV AYL OATSPLO ELEVATOR APLINLER GLUE TO ASMIEROCE OF ELEVATOR IA BALSA SlEET GROOM GRACE OECESS FIN VIA AlTO FSELACE/ FINI [I (IA MURIC WIRE r IYM AGd FUSELAGE- SIDE VIEW I14 BALSA SSEET FGSELAGE QATLINE UD\ i INLLCTAM15 EISA WIRENYLOI CONTRA TORI RUWASORTRW LME VIA ADA VIVA LONG ERIC GRRELASEIRA SEAR STOPIVR MUSIC WINE IVIS MASIC AIRE LANDING PATTERN RJLO LIGYT SAM WELL ANO GO SUNDANER I~IABBWRIf~EST UEN ~45N mount Sand wing thoroughly round edges Epoxy lead-out guide bottom wing wiping excess epoxy around plywood guide making small fillets go Make sure guide right angle wing Let dry thoroughly Indent side plywood bellcrank mount awl will make glue bond stronger Place ply mount its proper location bot tom wing mark around soft pencil Again using awl poke holes balsa wing surface going clear through wood Glue mount wing epoxy wiping ex cess glue around mount making small fillets same time completely dry locate center mount drill hole through mount wing Use back-up board drilling avoid tearing up wood drill goes through stall bellcrank yet Tail Cut components AR x 3 x 36 balsa light-medium grade Note grain direction shown plan various parts Sand round cor ners Place fin flat surface glue rudder CyA prop er offset angle Attach rudder doublers thin CyA side lower bot tom rudder piece Sand fin/rud der unit Trial-fit elevator stabilizer together Make sure mating hinge line has no gaps Use masking tape hold parts together side time sand elevator stabilizer unit Round edges Cut out finish-sand plywood elevator doubler Indent mating sur faces awl preparatory gluing Attach doubler underside elevator thick CyA Sand unit well making sure leading edge plywood doubler beveled allow Continued page 173 Left Side-mounted Tee Dee has minimal frontal area low drag clean appearance Rubberbands hold wedge tankfor easy mount ing Right Underside clean uncluttered though controls open foreasyaccess adjustment photos David M Kirk 74 Model Aviation eported thai worked better aipan although well carbon ibre props Theyre now available buck can afford give away ittle bit performance later iow work out Charlie Johflson 3716 Ingraham St Diego CA 92109 CL Navy CarrierlPerry Continued page 71 lights around country total 41 lass I/TI 59 Profile flights ecorded contests occurred uring summer months Only lights timing data avail ble used Flights ranked Light score landing scale points ot considered high speed times y low speed times form some statisti al data might allow us se stack up against Carrier mod lers rest United States ercentile rankings should interpreted s follows 90 percentile flight score igh/low speed time would better 0 percent flights used nalysis 67 percentile score better two thirds flights etc look differences percentile inkings shows general Class II tips outperform Class models Consid ring number combined events areas modeler faced choice f building either Class Class II iodel might ahead build Class II iodel first also ran correlations between high iw speeds between overall score oth high low speeds using rank-dif rence method Scale classes little correlation between ranking based nly low speed ranking based high speed indicates tradeIfs between high low-speed perfor iance common may also indicate lange design philosophy larger iodels appearing trading high speed tter low speed large propor older models still use high/low correlation Profile uch higher probably reflection fact Profile models have ways larger couldnt grow ie same extent Scale ships could ay also indicate modelers willing vote time good low-speed perfor ance also working improve high ieed scores classes high-speed ranking cor lated very well overall flight score nking best match iddle lower scores other words great high speed didnt guarantee high ierall score worse high speed came lower overall placing cely become high speed score gan dominate total flight score look top 12% overall ores showed quite different relation tip case low speed also Tailwheel Assemblies Now three sizes4 te9 lbs$1295 spring steellOts 18 lbs$1495 tailwheelsI9lhsmsdnp$1595 OhIo l2lo Also within top 12% groupings flight score ranking low speed ranking either identi cal varied no place message seems cleara very good low speed will almost guarantee very good flight score range low speed scores constituted top 12% grouping 108 160 seconds Class I/Il 143 227 seconds Profile Richard L Perry 7578 Vogels Way Springfield VA 22153 SundancerlNunes Continued page 74 elevator function properly tached fuselage Fuselage Note small triangles plan indicate actual outline profile fuselage Mark cut fuselage sheet x 3 x 36 balsa medium grade Make sure no cracks splits etc balsa Mark wing slot area fuselage blank Drill A-in hole end slot area Connect tops bottoms holes front back line cut balsa slot being careful keep cutting blade right angle fuselage side Similarly mark remove wood sta bilizer slot Mark remove wood rear top fuselage area make /6-in-deep recess slot ihat will receive fin Try make slot wider needed ensure good parts fit Cut out plywood fuselage doublers Locate holes outside face doublers Use awl make indenta tions inside face doubler mating balsa fuselage area Epoxy 216-223-1950 SORRY correct telephone number 6 FIBERGLASS MASTER 0 7O3 89O-6O17 0 Pleats make change page 82 mber issue Model Aviation elsewhere. JanUary1985 173 MONOCOUPE D14SPIPER PA17 Engines 2 Cycle Glow 90-12VAGABOND 4 Cycle Glow 90 -12Wingspan 84 Flying Weight 12 lbsWing Area 1280 sq Wing Design Foam Wing Design Fuseisge Built-upFoam CweslBslsa Sheeted Cowl F-gleesCowl Fiberglass Spsn 94Flying Weight 10 lbs wISi Engine Engines 2 Cycle 60 91 4 Cycle 90-120 25% Scale Size Henry Neighs N SUPER STAR Wingspan 84 Wing Area 1135 sq Cowl Fiberglass Canopy Formed Plastic Flying Weight 11 14 lbs Wing Design Foam Balsa Covered Fuselage Built-up Semi Monocouque Design Balsa Engines Large Glow Small Gas Manufacturers PustThreads3rues Inserts 440 6/32 8/32 1/420 FsstTuWlqShetlngSsSO$1995 Ve50 $595 OHIO SUPERSTAR PRODUCTS Inc 11376 Ridgeway Rd. Kensington OH 44427 LDHOODS Cereal ILD BLUE box Airplanes Fly AgaIn Scoot CH $500 Reproduction P40 ZERO SAF-CLITE MooELe Box 62M 5seiIle Ml45Oee PAW DIESELS Englands Finest 049 to 35 New low low prices Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 SILICONE gasoline 10 foot coilsTUBING 10.062 092 125U S POST S/coil 235 265 325 545/COIL LARRY DODGE AERO INC 10210 MANNINGSTILLWATER MN 55082 * SCALE DOCUMENTATION * SCALE DRAWINGSMODEL PLANS PHOTOS w BOOKS EPLA-TECH 1985 INTERNATIONAL AIRPLANE CATALOG48500 MCKENZIE HWY $300VIDA OREGON 97488 ply doublers correct positions clamp rubberband place until dry Drill engine mounting holes land ing gear hole landing gear stop hole Use back-up piece wood avoid splintered exit hole Drill through engine area now fuselage can laid flat Keep drill right angle work Sand round corners Fuel proof engine area epoxy Assembly Slide main wing through fuselage wing slot sure wing positioned right angles fuselage both vertically horizontally Take time installation get correct satisfied give liberal ap plication thick CyA joint area like apply side time let ting dry doing other side Allow dry undisturbed make small fillets around wing/fuselage connection micro-balloons epoxy Wipe excess fillet material model let dry Drill holes through elevator ply doubler control horn Hinge elevator stabilizer using either small cloth hinges did own sewn hinges Insert elevator/stabilizer unit fuselage slot Make sure assembly both horizontally vertically square fuselage satisfied use CyA attaching fuselage Trial-fit fin/rudder rear fuselage Open up elevator cutout required ensure ease elevator movement Bevel rudder doublers sandpaper-covered dowel step satisfied fit align ment attach fin/rudder unit fuselage thick CyA sure sand bottom rudder match fuselage secure thick CyA surface filling repair dings final sanding Finish model like painted dope used self-stick trim sheet high lights original trim pattern shown plan use desired Form landing gear shape cut landing gear stop size Insert landing gear through fuselage landing gear stop its position Rub berband together Attach slim-type wheels favorite wheel retainers Make sure wheels rotate freely Bolt bellcrank mount Attach nylon control horn elevator doubler shape attach pushrod Shape glue tailskid bottom fuselage epoxy Attach braided cable control line leadouts bellcrank thread through ply lead-out guide make ends finished loops Glue outboard wing tip weight place thick CyA Pre-flight check model bal anced shown plans check see have equal amount up down elevator movement Select con trol horn hole provides control response want Eyeball finished model angles Check make sure nothing warped lopsided critical look over work anything looks could use bit extra work before going fly Flight time Take completed Sundancer flight lines handle battery fuel head out favorite flying site some fun Dont surprised fellow modelers walk over admire plane because has character wont let down doing thing th air either Just sure flight lines good engine will offer consistent runs Oh take plenty fuel. might flying Sundancer quite awhile bird wants fly get out have ball Im very pleased results Ive model will too Fly safely tell someone new about model building flying DIII Materials l/ x 3 x 36 Balsa sheet medium grade 1V x 4 x 36 Balsa sheet medium grade 1V6 x 3 x 36 Balsa sheet light/medium grade lY2 x 6 x 12 Aircraft plywood lA6-in-dia Music wire 12-in Belicrank unit 1Flexible lead-out cables 1Small RC nylon control horn 2lY-in-dia Slim-style wheels 4Wheel retainers 1Perfect #19 Wedgtank oz 1049/O5l Engine prop 4Engine bolts w/lockwashers lock units Adhesives epoxy cyanoacrylates hinge material small fuel tubing finishing paints coverings small rubberbands Stunt DesignlRabe Continued page 77 using shortcut across grass Wouldnt know slow speed rudder nearly useless rolling out Mustang must carefully control pitch attitude rate let tail settle slowly residual rudder effectiveness will hold hold tail up too long let drop rapidly brakes will required stay concrete until locked tail wheel takes over roll-out gets easy again What has CL Stunt dont know about airplanes always got light outsides suggests left yawing gyro scopic precession stronger simultaneously-occurring right yaw P effects Ill admit precession V2-oz prop 3- 4-lb airplane probably doesnt supply lot yaw force first dont think much yaw re quired noticeably reduce tension outsides second dont think P effect much noticed Stunt ship P increases increasing angle attack because angle relative wind increases does differ ential thrust ascending descend ing blades prop full-size plane may reach large pitch angle rela tive wind slowed near stalling during accelerated pitch maneuvers See Fig 1 P will large angle tack large Most Stunt ships however have large full-span flaps dramati cally reduce body angle relative wind effective angle attack approaches stall See Fig 2 full-size planes stall angle always approximately same whether angle attack reached slow flight maneuvering loads 174 Model Aviation ACCURATE ABLE EASYTOREAD ACCUTACH NOW IN TWO MODELS 3 FUNCTION4 FUNCTION ACCUTACH ACCUTACH 2 79958995 Digital LCD tachometerSame useful capabilities has dual scale lOX-bOXas ACCU-TACH 1 stable RPM readoutincludes DC ammeter Full scale voltmeter canused check servo curbe used check/cyclerent Will find worn bindmost TXIRX battery com-ing stalled servo condi bos Reads loadtions w/SCA1 up 20 voltsAdd function ATi ACCESSORIESor OSAl- Quarter Scale Adaptor SCAl -Servo Current Adaptor ATi & AT2-500ma load . 995 Airtronics Futaba Kraft. 995 AVIINIrii3S Send check MO NorCal AVIONICS Inc P0 Box 70956 Sunnyvale CA 94086 Calif add 6% tax Add $2 S&H See dealer first
Edition: Model Aviation - 1985/01
Page Numbers: 72, 73, 74, 173, 174
I just stoc really goi d flight lying about flher thats plane ex lines real nice Stunts fast great payoff enjoyment ior few aol lars worth balsa ply about eight hours total design/construction time start finish Indeed look over plans photos youll note aircraft quite easy build Simplicity can very effective used properly design criterion aint needed aint will find boils down fast economical construction results flying time Construction straight forward newcomers mind build ing instructions follow few recommend Tee Dee plans tne engine model Should want use conventional 049 attached fuel tank can easily modify front end model suit particular engine overall speed will down Tee Dee engine models maneuverability will still great Small rubberbands used secure fuel tank fuselage secur- ing landing gear landing gear stop kind mounting quick simple provides bit shock resistance times landings less ideal lightly Sand WLLIL modet ctI1u uI cially wing Go easy use epoxy sure wipe excess glue model Construction Build model flat working surface Cut out parts small table-top hobby saw such made Dremel will really speed up cutting chores especially plywood parts have such saw use steel straightedge sharp hobby knife balsa parts Try make several light cuts instead heavy cut cutting mdi72 Model Aviation Left The basic pro-cut parts Tee Dee version Make own kit first fast easy construction Right Dremel table saw used easily cutting wing slot fuseiage biank Note pre-driiied 1/a-in holes front rear wing siot Left Front end tank-mount 049 Cox engine Only front needs changed Note triangle stock runs top bottom behind firewall adds much strength Right Basic wing component layout Top portion plc shows required pieces Follow directions text obtain minimum balsa waste parts Bottom photo shows correct location pieces Left Completed elevator/stabilizer unit top bottom views Note tlie ply doubler elevator bottom narrow gap atthe hinge line author used cloth hinges Right Installed tail feathers elevator must clear rudder proper movement Remove excess glue vidual parts Use coping saw ply wood items Take time careful Epoxy refers 5-mm type such Devcon brand Cyanoacrylates CyA refers thin thick types such Carl Goldberg Jet Super Jet Wing Select nice straight x 4 x 36 balsa sheet medium grade should have no splits soft spots etc wing leading section cut piece Place wing tip plan over balsa sheet locating close end sheet Mark use dressmakers pattern wheel connecting dots pen cut out main wing section remaining rectangular piece balsa sheet cut piece x 1 x 11 Take pen draw diagonal line corner corner Cut trailing edge pieces balsa sheet Glue two trailing edge pieces main wing section making sure wing flat no gaps mating edges Use awl first poke holes mating edges glue acetone-based cement such Ambroid Use double-gluing technique Apply liberal coating cement wipe off excess allow glue dry thoroughly use acetone cement instead CyA will allow wing sanded smooth easily hard glue line common CyA Cut opening lead-out guide Locate position bellcrank January1985 73 Full-Size Plans Available. See Page 180 DO NOT FLY MODEL NEAR POWER L*ES LEASING EASE GEWBIN LEADOUTGUIBELLCRANK SVSA PLYMOUNT SYD PLY TVSA AC GRILL lIEU ~ISLAA DRILL TIES FUSELAGE DOWLERS ENGINE SEESVSA PLYEAGOJY SCE ELEV DOUBLER RUOER DOUSER IA BALSA ACEET TWO SEACRSEO EPOXY LEAGOUT GLEE TALEASOUT SEE fAGITEGiDLONE CENT COW WISERSIXE OF WING LEASING ERGE NIYR BALSA GREET GROWl GRAMWINGTIP WEIGHT I_ ~~I7zzr~ LEASOITTELLORANAIWING PLAN 41--______TOP VIEW ROT~ RELLCRATE GLUE LISE Al 7 FIN IIS BALSA SlEET 7 LiRETFECT IS WEASTAUC TEEEE FUSELAGE TOP VIEW SOOU DAGGRESO RON AM SORARA APE CAT FRAGI LIATIT GROILMA GRGOF BALSAVA MARC WIRE NOTICE GRAIN CIRECTIOWPO5HTOR RUR VIR BALSA SlEET -j 0R BALSA WEET ARGEMA GRADESHOWN IN TYPEAL AND USE LIBERAL APPLICATION OF CYBAAOMORYLGTE STABJO BALSA SlEET fl~rELEV AYL OATSPLO ELEVATOR APLINLER GLUE TO ASMIEROCE OF ELEVATOR IA BALSA SlEET GROOM GRACE OECESS FIN VIA AlTO FSELACE/ FINI [I (IA MURIC WIRE r IYM AGd FUSELAGE- SIDE VIEW I14 BALSA SSEET FGSELAGE QATLINE UD\ i INLLCTAM15 EISA WIRENYLOI CONTRA TORI RUWASORTRW LME VIA ADA VIVA LONG ERIC GRRELASEIRA SEAR STOPIVR MUSIC WINE IVIS MASIC AIRE LANDING PATTERN RJLO LIGYT SAM WELL ANO GO SUNDANER I~IABBWRIf~EST UEN ~45N mount Sand wing thoroughly round edges Epoxy lead-out guide bottom wing wiping excess epoxy around plywood guide making small fillets go Make sure guide right angle wing Let dry thoroughly Indent side plywood bellcrank mount awl will make glue bond stronger Place ply mount its proper location bot tom wing mark around soft pencil Again using awl poke holes balsa wing surface going clear through wood Glue mount wing epoxy wiping ex cess glue around mount making small fillets same time completely dry locate center mount drill hole through mount wing Use back-up board drilling avoid tearing up wood drill goes through stall bellcrank yet Tail Cut components AR x 3 x 36 balsa light-medium grade Note grain direction shown plan various parts Sand round cor ners Place fin flat surface glue rudder CyA prop er offset angle Attach rudder doublers thin CyA side lower bot tom rudder piece Sand fin/rud der unit Trial-fit elevator stabilizer together Make sure mating hinge line has no gaps Use masking tape hold parts together side time sand elevator stabilizer unit Round edges Cut out finish-sand plywood elevator doubler Indent mating sur faces awl preparatory gluing Attach doubler underside elevator thick CyA Sand unit well making sure leading edge plywood doubler beveled allow Continued page 173 Left Side-mounted Tee Dee has minimal frontal area low drag clean appearance Rubberbands hold wedge tankfor easy mount ing Right Underside clean uncluttered though controls open foreasyaccess adjustment photos David M Kirk 74 Model Aviation eported thai worked better aipan although well carbon ibre props Theyre now available buck can afford give away ittle bit performance later iow work out Charlie Johflson 3716 Ingraham St Diego CA 92109 CL Navy CarrierlPerry Continued page 71 lights around country total 41 lass I/TI 59 Profile flights ecorded contests occurred uring summer months Only lights timing data avail ble used Flights ranked Light score landing scale points ot considered high speed times y low speed times form some statisti al data might allow us se stack up against Carrier mod lers rest United States ercentile rankings should interpreted s follows 90 percentile flight score igh/low speed time would better 0 percent flights used nalysis 67 percentile score better two thirds flights etc look differences percentile inkings shows general Class II tips outperform Class models Consid ring number combined events areas modeler faced choice f building either Class Class II iodel might ahead build Class II iodel first also ran correlations between high iw speeds between overall score oth high low speeds using rank-dif rence method Scale classes little correlation between ranking based nly low speed ranking based high speed indicates tradeIfs between high low-speed perfor iance common may also indicate lange design philosophy larger iodels appearing trading high speed tter low speed large propor older models still use high/low correlation Profile uch higher probably reflection fact Profile models have ways larger couldnt grow ie same extent Scale ships could ay also indicate modelers willing vote time good low-speed perfor ance also working improve high ieed scores classes high-speed ranking cor lated very well overall flight score nking best match iddle lower scores other words great high speed didnt guarantee high ierall score worse high speed came lower overall placing cely become high speed score gan dominate total flight score look top 12% overall ores showed quite different relation tip case low speed also Tailwheel Assemblies Now three sizes4 te9 lbs$1295 spring steellOts 18 lbs$1495 tailwheelsI9lhsmsdnp$1595 OhIo l2lo Also within top 12% groupings flight score ranking low speed ranking either identi cal varied no place message seems cleara very good low speed will almost guarantee very good flight score range low speed scores constituted top 12% grouping 108 160 seconds Class I/Il 143 227 seconds Profile Richard L Perry 7578 Vogels Way Springfield VA 22153 SundancerlNunes Continued page 74 elevator function properly tached fuselage Fuselage Note small triangles plan indicate actual outline profile fuselage Mark cut fuselage sheet x 3 x 36 balsa medium grade Make sure no cracks splits etc balsa Mark wing slot area fuselage blank Drill A-in hole end slot area Connect tops bottoms holes front back line cut balsa slot being careful keep cutting blade right angle fuselage side Similarly mark remove wood sta bilizer slot Mark remove wood rear top fuselage area make /6-in-deep recess slot ihat will receive fin Try make slot wider needed ensure good parts fit Cut out plywood fuselage doublers Locate holes outside face doublers Use awl make indenta tions inside face doubler mating balsa fuselage area Epoxy 216-223-1950 SORRY correct telephone number 6 FIBERGLASS MASTER 0 7O3 89O-6O17 0 Pleats make change page 82 mber issue Model Aviation elsewhere. JanUary1985 173 MONOCOUPE D14SPIPER PA17 Engines 2 Cycle Glow 90-12VAGABOND 4 Cycle Glow 90 -12Wingspan 84 Flying Weight 12 lbsWing Area 1280 sq Wing Design Foam Wing Design Fuseisge Built-upFoam CweslBslsa Sheeted Cowl F-gleesCowl Fiberglass Spsn 94Flying Weight 10 lbs wISi Engine Engines 2 Cycle 60 91 4 Cycle 90-120 25% Scale Size Henry Neighs N SUPER STAR Wingspan 84 Wing Area 1135 sq Cowl Fiberglass Canopy Formed Plastic Flying Weight 11 14 lbs Wing Design Foam Balsa Covered Fuselage Built-up Semi Monocouque Design Balsa Engines Large Glow Small Gas Manufacturers PustThreads3rues Inserts 440 6/32 8/32 1/420 FsstTuWlqShetlngSsSO$1995 Ve50 $595 OHIO SUPERSTAR PRODUCTS Inc 11376 Ridgeway Rd. Kensington OH 44427 LDHOODS Cereal ILD BLUE box Airplanes Fly AgaIn Scoot CH $500 Reproduction P40 ZERO SAF-CLITE MooELe Box 62M 5seiIle Ml45Oee PAW DIESELS Englands Finest 049 to 35 New low low prices Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 SILICONE gasoline 10 foot coilsTUBING 10.062 092 125U S POST S/coil 235 265 325 545/COIL LARRY DODGE AERO INC 10210 MANNINGSTILLWATER MN 55082 * SCALE DOCUMENTATION * SCALE DRAWINGSMODEL PLANS PHOTOS w BOOKS EPLA-TECH 1985 INTERNATIONAL AIRPLANE CATALOG48500 MCKENZIE HWY $300VIDA OREGON 97488 ply doublers correct positions clamp rubberband place until dry Drill engine mounting holes land ing gear hole landing gear stop hole Use back-up piece wood avoid splintered exit hole Drill through engine area now fuselage can laid flat Keep drill right angle work Sand round corners Fuel proof engine area epoxy Assembly Slide main wing through fuselage wing slot sure wing positioned right angles fuselage both vertically horizontally Take time installation get correct satisfied give liberal ap plication thick CyA joint area like apply side time let ting dry doing other side Allow dry undisturbed make small fillets around wing/fuselage connection micro-balloons epoxy Wipe excess fillet material model let dry Drill holes through elevator ply doubler control horn Hinge elevator stabilizer using either small cloth hinges did own sewn hinges Insert elevator/stabilizer unit fuselage slot Make sure assembly both horizontally vertically square fuselage satisfied use CyA attaching fuselage Trial-fit fin/rudder rear fuselage Open up elevator cutout required ensure ease elevator movement Bevel rudder doublers sandpaper-covered dowel step satisfied fit align ment attach fin/rudder unit fuselage thick CyA sure sand bottom rudder match fuselage secure thick CyA surface filling repair dings final sanding Finish model like painted dope used self-stick trim sheet high lights original trim pattern shown plan use desired Form landing gear shape cut landing gear stop size Insert landing gear through fuselage landing gear stop its position Rub berband together Attach slim-type wheels favorite wheel retainers Make sure wheels rotate freely Bolt bellcrank mount Attach nylon control horn elevator doubler shape attach pushrod Shape glue tailskid bottom fuselage epoxy Attach braided cable control line leadouts bellcrank thread through ply lead-out guide make ends finished loops Glue outboard wing tip weight place thick CyA Pre-flight check model bal anced shown plans check see have equal amount up down elevator movement Select con trol horn hole provides control response want Eyeball finished model angles Check make sure nothing warped lopsided critical look over work anything looks could use bit extra work before going fly Flight time Take completed Sundancer flight lines handle battery fuel head out favorite flying site some fun Dont surprised fellow modelers walk over admire plane because has character wont let down doing thing th air either Just sure flight lines good engine will offer consistent runs Oh take plenty fuel. might flying Sundancer quite awhile bird wants fly get out have ball Im very pleased results Ive model will too Fly safely tell someone new about model building flying DIII Materials l/ x 3 x 36 Balsa sheet medium grade 1V x 4 x 36 Balsa sheet medium grade 1V6 x 3 x 36 Balsa sheet light/medium grade lY2 x 6 x 12 Aircraft plywood lA6-in-dia Music wire 12-in Belicrank unit 1Flexible lead-out cables 1Small RC nylon control horn 2lY-in-dia Slim-style wheels 4Wheel retainers 1Perfect #19 Wedgtank oz 1049/O5l Engine prop 4Engine bolts w/lockwashers lock units Adhesives epoxy cyanoacrylates hinge material small fuel tubing finishing paints coverings small rubberbands Stunt DesignlRabe Continued page 77 using shortcut across grass Wouldnt know slow speed rudder nearly useless rolling out Mustang must carefully control pitch attitude rate let tail settle slowly residual rudder effectiveness will hold hold tail up too long let drop rapidly brakes will required stay concrete until locked tail wheel takes over roll-out gets easy again What has CL Stunt dont know about airplanes always got light outsides suggests left yawing gyro scopic precession stronger simultaneously-occurring right yaw P effects Ill admit precession V2-oz prop 3- 4-lb airplane probably doesnt supply lot yaw force first dont think much yaw re quired noticeably reduce tension outsides second dont think P effect much noticed Stunt ship P increases increasing angle attack because angle relative wind increases does differ ential thrust ascending descend ing blades prop full-size plane may reach large pitch angle rela tive wind slowed near stalling during accelerated pitch maneuvers See Fig 1 P will large angle tack large Most Stunt ships however have large full-span flaps dramati cally reduce body angle relative wind effective angle attack approaches stall See Fig 2 full-size planes stall angle always approximately same whether angle attack reached slow flight maneuvering loads 174 Model Aviation ACCURATE ABLE EASYTOREAD ACCUTACH NOW IN TWO MODELS 3 FUNCTION4 FUNCTION ACCUTACH ACCUTACH 2 79958995 Digital LCD tachometerSame useful capabilities has dual scale lOX-bOXas ACCU-TACH 1 stable RPM readoutincludes DC ammeter Full scale voltmeter canused check servo curbe used check/cyclerent Will find worn bindmost TXIRX battery com-ing stalled servo condi bos Reads loadtions w/SCA1 up 20 voltsAdd function ATi ACCESSORIESor OSAl- Quarter Scale Adaptor SCAl -Servo Current Adaptor ATi & AT2-500ma load . 995 Airtronics Futaba Kraft. 995 AVIINIrii3S Send check MO NorCal AVIONICS Inc P0 Box 70956 Sunnyvale CA 94086 Calif add 6% tax Add $2 S&H See dealer first
Edition: Model Aviation - 1985/01
Page Numbers: 72, 73, 74, 173, 174
I just stoc really goi d flight lying about flher thats plane ex lines real nice Stunts fast great payoff enjoyment ior few aol lars worth balsa ply about eight hours total design/construction time start finish Indeed look over plans photos youll note aircraft quite easy build Simplicity can very effective used properly design criterion aint needed aint will find boils down fast economical construction results flying time Construction straight forward newcomers mind build ing instructions follow few recommend Tee Dee plans tne engine model Should want use conventional 049 attached fuel tank can easily modify front end model suit particular engine overall speed will down Tee Dee engine models maneuverability will still great Small rubberbands used secure fuel tank fuselage secur- ing landing gear landing gear stop kind mounting quick simple provides bit shock resistance times landings less ideal lightly Sand WLLIL modet ctI1u uI cially wing Go easy use epoxy sure wipe excess glue model Construction Build model flat working surface Cut out parts small table-top hobby saw such made Dremel will really speed up cutting chores especially plywood parts have such saw use steel straightedge sharp hobby knife balsa parts Try make several light cuts instead heavy cut cutting mdi72 Model Aviation Left The basic pro-cut parts Tee Dee version Make own kit first fast easy construction Right Dremel table saw used easily cutting wing slot fuseiage biank Note pre-driiied 1/a-in holes front rear wing siot Left Front end tank-mount 049 Cox engine Only front needs changed Note triangle stock runs top bottom behind firewall adds much strength Right Basic wing component layout Top portion plc shows required pieces Follow directions text obtain minimum balsa waste parts Bottom photo shows correct location pieces Left Completed elevator/stabilizer unit top bottom views Note tlie ply doubler elevator bottom narrow gap atthe hinge line author used cloth hinges Right Installed tail feathers elevator must clear rudder proper movement Remove excess glue vidual parts Use coping saw ply wood items Take time careful Epoxy refers 5-mm type such Devcon brand Cyanoacrylates CyA refers thin thick types such Carl Goldberg Jet Super Jet Wing Select nice straight x 4 x 36 balsa sheet medium grade should have no splits soft spots etc wing leading section cut piece Place wing tip plan over balsa sheet locating close end sheet Mark use dressmakers pattern wheel connecting dots pen cut out main wing section remaining rectangular piece balsa sheet cut piece x 1 x 11 Take pen draw diagonal line corner corner Cut trailing edge pieces balsa sheet Glue two trailing edge pieces main wing section making sure wing flat no gaps mating edges Use awl first poke holes mating edges glue acetone-based cement such Ambroid Use double-gluing technique Apply liberal coating cement wipe off excess allow glue dry thoroughly use acetone cement instead CyA will allow wing sanded smooth easily hard glue line common CyA Cut opening lead-out guide Locate position bellcrank January1985 73 Full-Size Plans Available. See Page 180 DO NOT FLY MODEL NEAR POWER L*ES LEASING EASE GEWBIN LEADOUTGUIBELLCRANK SVSA PLYMOUNT SYD PLY TVSA AC GRILL lIEU ~ISLAA DRILL TIES FUSELAGE DOWLERS ENGINE SEESVSA PLYEAGOJY SCE ELEV DOUBLER RUOER DOUSER IA BALSA ACEET TWO SEACRSEO EPOXY LEAGOUT GLEE TALEASOUT SEE fAGITEGiDLONE CENT COW WISERSIXE OF WING LEASING ERGE NIYR BALSA GREET GROWl GRAMWINGTIP WEIGHT I_ ~~I7zzr~ LEASOITTELLORANAIWING PLAN 41--______TOP VIEW ROT~ RELLCRATE GLUE LISE Al 7 FIN IIS BALSA SlEET 7 LiRETFECT IS WEASTAUC TEEEE FUSELAGE TOP VIEW SOOU DAGGRESO RON AM SORARA APE CAT FRAGI LIATIT GROILMA GRGOF BALSAVA MARC WIRE NOTICE GRAIN CIRECTIOWPO5HTOR RUR VIR BALSA SlEET -j 0R BALSA WEET ARGEMA GRADESHOWN IN TYPEAL AND USE LIBERAL APPLICATION OF CYBAAOMORYLGTE STABJO BALSA SlEET fl~rELEV AYL OATSPLO ELEVATOR APLINLER GLUE TO ASMIEROCE OF ELEVATOR IA BALSA SlEET GROOM GRACE OECESS FIN VIA AlTO FSELACE/ FINI [I (IA MURIC WIRE r IYM AGd FUSELAGE- SIDE VIEW I14 BALSA SSEET FGSELAGE QATLINE UD\ i INLLCTAM15 EISA WIRENYLOI CONTRA TORI RUWASORTRW LME VIA ADA VIVA LONG ERIC GRRELASEIRA SEAR STOPIVR MUSIC WINE IVIS MASIC AIRE LANDING PATTERN RJLO LIGYT SAM WELL ANO GO SUNDANER I~IABBWRIf~EST UEN ~45N mount Sand wing thoroughly round edges Epoxy lead-out guide bottom wing wiping excess epoxy around plywood guide making small fillets go Make sure guide right angle wing Let dry thoroughly Indent side plywood bellcrank mount awl will make glue bond stronger Place ply mount its proper location bot tom wing mark around soft pencil Again using awl poke holes balsa wing surface going clear through wood Glue mount wing epoxy wiping ex cess glue around mount making small fillets same time completely dry locate center mount drill hole through mount wing Use back-up board drilling avoid tearing up wood drill goes through stall bellcrank yet Tail Cut components AR x 3 x 36 balsa light-medium grade Note grain direction shown plan various parts Sand round cor ners Place fin flat surface glue rudder CyA prop er offset angle Attach rudder doublers thin CyA side lower bot tom rudder piece Sand fin/rud der unit Trial-fit elevator stabilizer together Make sure mating hinge line has no gaps Use masking tape hold parts together side time sand elevator stabilizer unit Round edges Cut out finish-sand plywood elevator doubler Indent mating sur faces awl preparatory gluing Attach doubler underside elevator thick CyA Sand unit well making sure leading edge plywood doubler beveled allow Continued page 173 Left Side-mounted Tee Dee has minimal frontal area low drag clean appearance Rubberbands hold wedge tankfor easy mount ing Right Underside clean uncluttered though controls open foreasyaccess adjustment photos David M Kirk 74 Model Aviation eported thai worked better aipan although well carbon ibre props Theyre now available buck can afford give away ittle bit performance later iow work out Charlie Johflson 3716 Ingraham St Diego CA 92109 CL Navy CarrierlPerry Continued page 71 lights around country total 41 lass I/TI 59 Profile flights ecorded contests occurred uring summer months Only lights timing data avail ble used Flights ranked Light score landing scale points ot considered high speed times y low speed times form some statisti al data might allow us se stack up against Carrier mod lers rest United States ercentile rankings should interpreted s follows 90 percentile flight score igh/low speed time would better 0 percent flights used nalysis 67 percentile score better two thirds flights etc look differences percentile inkings shows general Class II tips outperform Class models Consid ring number combined events areas modeler faced choice f building either Class Class II iodel might ahead build Class II iodel first also ran correlations between high iw speeds between overall score oth high low speeds using rank-dif rence method Scale classes little correlation between ranking based nly low speed ranking based high speed indicates tradeIfs between high low-speed perfor iance common may also indicate lange design philosophy larger iodels appearing trading high speed tter low speed large propor older models still use high/low correlation Profile uch higher probably reflection fact Profile models have ways larger couldnt grow ie same extent Scale ships could ay also indicate modelers willing vote time good low-speed perfor ance also working improve high ieed scores classes high-speed ranking cor lated very well overall flight score nking best match iddle lower scores other words great high speed didnt guarantee high ierall score worse high speed came lower overall placing cely become high speed score gan dominate total flight score look top 12% overall ores showed quite different relation tip case low speed also Tailwheel Assemblies Now three sizes4 te9 lbs$1295 spring steellOts 18 lbs$1495 tailwheelsI9lhsmsdnp$1595 OhIo l2lo Also within top 12% groupings flight score ranking low speed ranking either identi cal varied no place message seems cleara very good low speed will almost guarantee very good flight score range low speed scores constituted top 12% grouping 108 160 seconds Class I/Il 143 227 seconds Profile Richard L Perry 7578 Vogels Way Springfield VA 22153 SundancerlNunes Continued page 74 elevator function properly tached fuselage Fuselage Note small triangles plan indicate actual outline profile fuselage Mark cut fuselage sheet x 3 x 36 balsa medium grade Make sure no cracks splits etc balsa Mark wing slot area fuselage blank Drill A-in hole end slot area Connect tops bottoms holes front back line cut balsa slot being careful keep cutting blade right angle fuselage side Similarly mark remove wood sta bilizer slot Mark remove wood rear top fuselage area make /6-in-deep recess slot ihat will receive fin Try make slot wider needed ensure good parts fit Cut out plywood fuselage doublers Locate holes outside face doublers Use awl make indenta tions inside face doubler mating balsa fuselage area Epoxy 216-223-1950 SORRY correct telephone number 6 FIBERGLASS MASTER 0 7O3 89O-6O17 0 Pleats make change page 82 mber issue Model Aviation elsewhere. JanUary1985 173 MONOCOUPE D14SPIPER PA17 Engines 2 Cycle Glow 90-12VAGABOND 4 Cycle Glow 90 -12Wingspan 84 Flying Weight 12 lbsWing Area 1280 sq Wing Design Foam Wing Design Fuseisge Built-upFoam CweslBslsa Sheeted Cowl F-gleesCowl Fiberglass Spsn 94Flying Weight 10 lbs wISi Engine Engines 2 Cycle 60 91 4 Cycle 90-120 25% Scale Size Henry Neighs N SUPER STAR Wingspan 84 Wing Area 1135 sq Cowl Fiberglass Canopy Formed Plastic Flying Weight 11 14 lbs Wing Design Foam Balsa Covered Fuselage Built-up Semi Monocouque Design Balsa Engines Large Glow Small Gas Manufacturers PustThreads3rues Inserts 440 6/32 8/32 1/420 FsstTuWlqShetlngSsSO$1995 Ve50 $595 OHIO SUPERSTAR PRODUCTS Inc 11376 Ridgeway Rd. Kensington OH 44427 LDHOODS Cereal ILD BLUE box Airplanes Fly AgaIn Scoot CH $500 Reproduction P40 ZERO SAF-CLITE MooELe Box 62M 5seiIle Ml45Oee PAW DIESELS Englands Finest 049 to 35 New low low prices Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 SILICONE gasoline 10 foot coilsTUBING 10.062 092 125U S POST S/coil 235 265 325 545/COIL LARRY DODGE AERO INC 10210 MANNINGSTILLWATER MN 55082 * SCALE DOCUMENTATION * SCALE DRAWINGSMODEL PLANS PHOTOS w BOOKS EPLA-TECH 1985 INTERNATIONAL AIRPLANE CATALOG48500 MCKENZIE HWY $300VIDA OREGON 97488 ply doublers correct positions clamp rubberband place until dry Drill engine mounting holes land ing gear hole landing gear stop hole Use back-up piece wood avoid splintered exit hole Drill through engine area now fuselage can laid flat Keep drill right angle work Sand round corners Fuel proof engine area epoxy Assembly Slide main wing through fuselage wing slot sure wing positioned right angles fuselage both vertically horizontally Take time installation get correct satisfied give liberal ap plication thick CyA joint area like apply side time let ting dry doing other side Allow dry undisturbed make small fillets around wing/fuselage connection micro-balloons epoxy Wipe excess fillet material model let dry Drill holes through elevator ply doubler control horn Hinge elevator stabilizer using either small cloth hinges did own sewn hinges Insert elevator/stabilizer unit fuselage slot Make sure assembly both horizontally vertically square fuselage satisfied use CyA attaching fuselage Trial-fit fin/rudder rear fuselage Open up elevator cutout required ensure ease elevator movement Bevel rudder doublers sandpaper-covered dowel step satisfied fit align ment attach fin/rudder unit fuselage thick CyA sure sand bottom rudder match fuselage secure thick CyA surface filling repair dings final sanding Finish model like painted dope used self-stick trim sheet high lights original trim pattern shown plan use desired Form landing gear shape cut landing gear stop size Insert landing gear through fuselage landing gear stop its position Rub berband together Attach slim-type wheels favorite wheel retainers Make sure wheels rotate freely Bolt bellcrank mount Attach nylon control horn elevator doubler shape attach pushrod Shape glue tailskid bottom fuselage epoxy Attach braided cable control line leadouts bellcrank thread through ply lead-out guide make ends finished loops Glue outboard wing tip weight place thick CyA Pre-flight check model bal anced shown plans check see have equal amount up down elevator movement Select con trol horn hole provides control response want Eyeball finished model angles Check make sure nothing warped lopsided critical look over work anything looks could use bit extra work before going fly Flight time Take completed Sundancer flight lines handle battery fuel head out favorite flying site some fun Dont surprised fellow modelers walk over admire plane because has character wont let down doing thing th air either Just sure flight lines good engine will offer consistent runs Oh take plenty fuel. might flying Sundancer quite awhile bird wants fly get out have ball Im very pleased results Ive model will too Fly safely tell someone new about model building flying DIII Materials l/ x 3 x 36 Balsa sheet medium grade 1V x 4 x 36 Balsa sheet medium grade 1V6 x 3 x 36 Balsa sheet light/medium grade lY2 x 6 x 12 Aircraft plywood lA6-in-dia Music wire 12-in Belicrank unit 1Flexible lead-out cables 1Small RC nylon control horn 2lY-in-dia Slim-style wheels 4Wheel retainers 1Perfect #19 Wedgtank oz 1049/O5l Engine prop 4Engine bolts w/lockwashers lock units Adhesives epoxy cyanoacrylates hinge material small fuel tubing finishing paints coverings small rubberbands Stunt DesignlRabe Continued page 77 using shortcut across grass Wouldnt know slow speed rudder nearly useless rolling out Mustang must carefully control pitch attitude rate let tail settle slowly residual rudder effectiveness will hold hold tail up too long let drop rapidly brakes will required stay concrete until locked tail wheel takes over roll-out gets easy again What has CL Stunt dont know about airplanes always got light outsides suggests left yawing gyro scopic precession stronger simultaneously-occurring right yaw P effects Ill admit precession V2-oz prop 3- 4-lb airplane probably doesnt supply lot yaw force first dont think much yaw re quired noticeably reduce tension outsides second dont think P effect much noticed Stunt ship P increases increasing angle attack because angle relative wind increases does differ ential thrust ascending descend ing blades prop full-size plane may reach large pitch angle rela tive wind slowed near stalling during accelerated pitch maneuvers See Fig 1 P will large angle tack large Most Stunt ships however have large full-span flaps dramati cally reduce body angle relative wind effective angle attack approaches stall See Fig 2 full-size planes stall angle always approximately same whether angle attack reached slow flight maneuvering loads 174 Model Aviation ACCURATE ABLE EASYTOREAD ACCUTACH NOW IN TWO MODELS 3 FUNCTION4 FUNCTION ACCUTACH ACCUTACH 2 79958995 Digital LCD tachometerSame useful capabilities has dual scale lOX-bOXas ACCU-TACH 1 stable RPM readoutincludes DC ammeter Full scale voltmeter canused check servo curbe used check/cyclerent Will find worn bindmost TXIRX battery com-ing stalled servo condi bos Reads loadtions w/SCA1 up 20 voltsAdd function ATi ACCESSORIESor OSAl- Quarter Scale Adaptor SCAl -Servo Current Adaptor ATi & AT2-500ma load . 995 Airtronics Futaba Kraft. 995 AVIINIrii3S Send check MO NorCal AVIONICS Inc P0 Box 70956 Sunnyvale CA 94086 Calif add 6% tax Add $2 S&H See dealer first
Edition: Model Aviation - 1985/01
Page Numbers: 72, 73, 74, 173, 174
I just stoc really goi d flight lying about flher thats plane ex lines real nice Stunts fast great payoff enjoyment ior few aol lars worth balsa ply about eight hours total design/construction time start finish Indeed look over plans photos youll note aircraft quite easy build Simplicity can very effective used properly design criterion aint needed aint will find boils down fast economical construction results flying time Construction straight forward newcomers mind build ing instructions follow few recommend Tee Dee plans tne engine model Should want use conventional 049 attached fuel tank can easily modify front end model suit particular engine overall speed will down Tee Dee engine models maneuverability will still great Small rubberbands used secure fuel tank fuselage secur- ing landing gear landing gear stop kind mounting quick simple provides bit shock resistance times landings less ideal lightly Sand WLLIL modet ctI1u uI cially wing Go easy use epoxy sure wipe excess glue model Construction Build model flat working surface Cut out parts small table-top hobby saw such made Dremel will really speed up cutting chores especially plywood parts have such saw use steel straightedge sharp hobby knife balsa parts Try make several light cuts instead heavy cut cutting mdi72 Model Aviation Left The basic pro-cut parts Tee Dee version Make own kit first fast easy construction Right Dremel table saw used easily cutting wing slot fuseiage biank Note pre-driiied 1/a-in holes front rear wing siot Left Front end tank-mount 049 Cox engine Only front needs changed Note triangle stock runs top bottom behind firewall adds much strength Right Basic wing component layout Top portion plc shows required pieces Follow directions text obtain minimum balsa waste parts Bottom photo shows correct location pieces Left Completed elevator/stabilizer unit top bottom views Note tlie ply doubler elevator bottom narrow gap atthe hinge line author used cloth hinges Right Installed tail feathers elevator must clear rudder proper movement Remove excess glue vidual parts Use coping saw ply wood items Take time careful Epoxy refers 5-mm type such Devcon brand Cyanoacrylates CyA refers thin thick types such Carl Goldberg Jet Super Jet Wing Select nice straight x 4 x 36 balsa sheet medium grade should have no splits soft spots etc wing leading section cut piece Place wing tip plan over balsa sheet locating close end sheet Mark use dressmakers pattern wheel connecting dots pen cut out main wing section remaining rectangular piece balsa sheet cut piece x 1 x 11 Take pen draw diagonal line corner corner Cut trailing edge pieces balsa sheet Glue two trailing edge pieces main wing section making sure wing flat no gaps mating edges Use awl first poke holes mating edges glue acetone-based cement such Ambroid Use double-gluing technique Apply liberal coating cement wipe off excess allow glue dry thoroughly use acetone cement instead CyA will allow wing sanded smooth easily hard glue line common CyA Cut opening lead-out guide Locate position bellcrank January1985 73 Full-Size Plans Available. See Page 180 DO NOT FLY MODEL NEAR POWER L*ES LEASING EASE GEWBIN LEADOUTGUIBELLCRANK SVSA PLYMOUNT SYD PLY TVSA AC GRILL lIEU ~ISLAA DRILL TIES FUSELAGE DOWLERS ENGINE SEESVSA PLYEAGOJY SCE ELEV DOUBLER RUOER DOUSER IA BALSA ACEET TWO SEACRSEO EPOXY LEAGOUT GLEE TALEASOUT SEE fAGITEGiDLONE CENT COW WISERSIXE OF WING LEASING ERGE NIYR BALSA GREET GROWl GRAMWINGTIP WEIGHT I_ ~~I7zzr~ LEASOITTELLORANAIWING PLAN 41--______TOP VIEW ROT~ RELLCRATE GLUE LISE Al 7 FIN IIS BALSA SlEET 7 LiRETFECT IS WEASTAUC TEEEE FUSELAGE TOP VIEW SOOU DAGGRESO RON AM SORARA APE CAT FRAGI LIATIT GROILMA GRGOF BALSAVA MARC WIRE NOTICE GRAIN CIRECTIOWPO5HTOR RUR VIR BALSA SlEET -j 0R BALSA WEET ARGEMA GRADESHOWN IN TYPEAL AND USE LIBERAL APPLICATION OF CYBAAOMORYLGTE STABJO BALSA SlEET fl~rELEV AYL OATSPLO ELEVATOR APLINLER GLUE TO ASMIEROCE OF ELEVATOR IA BALSA SlEET GROOM GRACE OECESS FIN VIA AlTO FSELACE/ FINI [I (IA MURIC WIRE r IYM AGd FUSELAGE- SIDE VIEW I14 BALSA SSEET FGSELAGE QATLINE UD\ i INLLCTAM15 EISA WIRENYLOI CONTRA TORI RUWASORTRW LME VIA ADA VIVA LONG ERIC GRRELASEIRA SEAR STOPIVR MUSIC WINE IVIS MASIC AIRE LANDING PATTERN RJLO LIGYT SAM WELL ANO GO SUNDANER I~IABBWRIf~EST UEN ~45N mount Sand wing thoroughly round edges Epoxy lead-out guide bottom wing wiping excess epoxy around plywood guide making small fillets go Make sure guide right angle wing Let dry thoroughly Indent side plywood bellcrank mount awl will make glue bond stronger Place ply mount its proper location bot tom wing mark around soft pencil Again using awl poke holes balsa wing surface going clear through wood Glue mount wing epoxy wiping ex cess glue around mount making small fillets same time completely dry locate center mount drill hole through mount wing Use back-up board drilling avoid tearing up wood drill goes through stall bellcrank yet Tail Cut components AR x 3 x 36 balsa light-medium grade Note grain direction shown plan various parts Sand round cor ners Place fin flat surface glue rudder CyA prop er offset angle Attach rudder doublers thin CyA side lower bot tom rudder piece Sand fin/rud der unit Trial-fit elevator stabilizer together Make sure mating hinge line has no gaps Use masking tape hold parts together side time sand elevator stabilizer unit Round edges Cut out finish-sand plywood elevator doubler Indent mating sur faces awl preparatory gluing Attach doubler underside elevator thick CyA Sand unit well making sure leading edge plywood doubler beveled allow Continued page 173 Left Side-mounted Tee Dee has minimal frontal area low drag clean appearance Rubberbands hold wedge tankfor easy mount ing Right Underside clean uncluttered though controls open foreasyaccess adjustment photos David M Kirk 74 Model Aviation eported thai worked better aipan although well carbon ibre props Theyre now available buck can afford give away ittle bit performance later iow work out Charlie Johflson 3716 Ingraham St Diego CA 92109 CL Navy CarrierlPerry Continued page 71 lights around country total 41 lass I/TI 59 Profile flights ecorded contests occurred uring summer months Only lights timing data avail ble used Flights ranked Light score landing scale points ot considered high speed times y low speed times form some statisti al data might allow us se stack up against Carrier mod lers rest United States ercentile rankings should interpreted s follows 90 percentile flight score igh/low speed time would better 0 percent flights used nalysis 67 percentile score better two thirds flights etc look differences percentile inkings shows general Class II tips outperform Class models Consid ring number combined events areas modeler faced choice f building either Class Class II iodel might ahead build Class II iodel first also ran correlations between high iw speeds between overall score oth high low speeds using rank-dif rence method Scale classes little correlation between ranking based nly low speed ranking based high speed indicates tradeIfs between high low-speed perfor iance common may also indicate lange design philosophy larger iodels appearing trading high speed tter low speed large propor older models still use high/low correlation Profile uch higher probably reflection fact Profile models have ways larger couldnt grow ie same extent Scale ships could ay also indicate modelers willing vote time good low-speed perfor ance also working improve high ieed scores classes high-speed ranking cor lated very well overall flight score nking best match iddle lower scores other words great high speed didnt guarantee high ierall score worse high speed came lower overall placing cely become high speed score gan dominate total flight score look top 12% overall ores showed quite different relation tip case low speed also Tailwheel Assemblies Now three sizes4 te9 lbs$1295 spring steellOts 18 lbs$1495 tailwheelsI9lhsmsdnp$1595 OhIo l2lo Also within top 12% groupings flight score ranking low speed ranking either identi cal varied no place message seems cleara very good low speed will almost guarantee very good flight score range low speed scores constituted top 12% grouping 108 160 seconds Class I/Il 143 227 seconds Profile Richard L Perry 7578 Vogels Way Springfield VA 22153 SundancerlNunes Continued page 74 elevator function properly tached fuselage Fuselage Note small triangles plan indicate actual outline profile fuselage Mark cut fuselage sheet x 3 x 36 balsa medium grade Make sure no cracks splits etc balsa Mark wing slot area fuselage blank Drill A-in hole end slot area Connect tops bottoms holes front back line cut balsa slot being careful keep cutting blade right angle fuselage side Similarly mark remove wood sta bilizer slot Mark remove wood rear top fuselage area make /6-in-deep recess slot ihat will receive fin Try make slot wider needed ensure good parts fit Cut out plywood fuselage doublers Locate holes outside face doublers Use awl make indenta tions inside face doubler mating balsa fuselage area Epoxy 216-223-1950 SORRY correct telephone number 6 FIBERGLASS MASTER 0 7O3 89O-6O17 0 Pleats make change page 82 mber issue Model Aviation elsewhere. JanUary1985 173 MONOCOUPE D14SPIPER PA17 Engines 2 Cycle Glow 90-12VAGABOND 4 Cycle Glow 90 -12Wingspan 84 Flying Weight 12 lbsWing Area 1280 sq Wing Design Foam Wing Design Fuseisge Built-upFoam CweslBslsa Sheeted Cowl F-gleesCowl Fiberglass Spsn 94Flying Weight 10 lbs wISi Engine Engines 2 Cycle 60 91 4 Cycle 90-120 25% Scale Size Henry Neighs N SUPER STAR Wingspan 84 Wing Area 1135 sq Cowl Fiberglass Canopy Formed Plastic Flying Weight 11 14 lbs Wing Design Foam Balsa Covered Fuselage Built-up Semi Monocouque Design Balsa Engines Large Glow Small Gas Manufacturers PustThreads3rues Inserts 440 6/32 8/32 1/420 FsstTuWlqShetlngSsSO$1995 Ve50 $595 OHIO SUPERSTAR PRODUCTS Inc 11376 Ridgeway Rd. Kensington OH 44427 LDHOODS Cereal ILD BLUE box Airplanes Fly AgaIn Scoot CH $500 Reproduction P40 ZERO SAF-CLITE MooELe Box 62M 5seiIle Ml45Oee PAW DIESELS Englands Finest 049 to 35 New low low prices Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 SILICONE gasoline 10 foot coilsTUBING 10.062 092 125U S POST S/coil 235 265 325 545/COIL LARRY DODGE AERO INC 10210 MANNINGSTILLWATER MN 55082 * SCALE DOCUMENTATION * SCALE DRAWINGSMODEL PLANS PHOTOS w BOOKS EPLA-TECH 1985 INTERNATIONAL AIRPLANE CATALOG48500 MCKENZIE HWY $300VIDA OREGON 97488 ply doublers correct positions clamp rubberband place until dry Drill engine mounting holes land ing gear hole landing gear stop hole Use back-up piece wood avoid splintered exit hole Drill through engine area now fuselage can laid flat Keep drill right angle work Sand round corners Fuel proof engine area epoxy Assembly Slide main wing through fuselage wing slot sure wing positioned right angles fuselage both vertically horizontally Take time installation get correct satisfied give liberal ap plication thick CyA joint area like apply side time let ting dry doing other side Allow dry undisturbed make small fillets around wing/fuselage connection micro-balloons epoxy Wipe excess fillet material model let dry Drill holes through elevator ply doubler control horn Hinge elevator stabilizer using either small cloth hinges did own sewn hinges Insert elevator/stabilizer unit fuselage slot Make sure assembly both horizontally vertically square fuselage satisfied use CyA attaching fuselage Trial-fit fin/rudder rear fuselage Open up elevator cutout required ensure ease elevator movement Bevel rudder doublers sandpaper-covered dowel step satisfied fit align ment attach fin/rudder unit fuselage thick CyA sure sand bottom rudder match fuselage secure thick CyA surface filling repair dings final sanding Finish model like painted dope used self-stick trim sheet high lights original trim pattern shown plan use desired Form landing gear shape cut landing gear stop size Insert landing gear through fuselage landing gear stop its position Rub berband together Attach slim-type wheels favorite wheel retainers Make sure wheels rotate freely Bolt bellcrank mount Attach nylon control horn elevator doubler shape attach pushrod Shape glue tailskid bottom fuselage epoxy Attach braided cable control line leadouts bellcrank thread through ply lead-out guide make ends finished loops Glue outboard wing tip weight place thick CyA Pre-flight check model bal anced shown plans check see have equal amount up down elevator movement Select con trol horn hole provides control response want Eyeball finished model angles Check make sure nothing warped lopsided critical look over work anything looks could use bit extra work before going fly Flight time Take completed Sundancer flight lines handle battery fuel head out favorite flying site some fun Dont surprised fellow modelers walk over admire plane because has character wont let down doing thing th air either Just sure flight lines good engine will offer consistent runs Oh take plenty fuel. might flying Sundancer quite awhile bird wants fly get out have ball Im very pleased results Ive model will too Fly safely tell someone new about model building flying DIII Materials l/ x 3 x 36 Balsa sheet medium grade 1V x 4 x 36 Balsa sheet medium grade 1V6 x 3 x 36 Balsa sheet light/medium grade lY2 x 6 x 12 Aircraft plywood lA6-in-dia Music wire 12-in Belicrank unit 1Flexible lead-out cables 1Small RC nylon control horn 2lY-in-dia Slim-style wheels 4Wheel retainers 1Perfect #19 Wedgtank oz 1049/O5l Engine prop 4Engine bolts w/lockwashers lock units Adhesives epoxy cyanoacrylates hinge material small fuel tubing finishing paints coverings small rubberbands Stunt DesignlRabe Continued page 77 using shortcut across grass Wouldnt know slow speed rudder nearly useless rolling out Mustang must carefully control pitch attitude rate let tail settle slowly residual rudder effectiveness will hold hold tail up too long let drop rapidly brakes will required stay concrete until locked tail wheel takes over roll-out gets easy again What has CL Stunt dont know about airplanes always got light outsides suggests left yawing gyro scopic precession stronger simultaneously-occurring right yaw P effects Ill admit precession V2-oz prop 3- 4-lb airplane probably doesnt supply lot yaw force first dont think much yaw re quired noticeably reduce tension outsides second dont think P effect much noticed Stunt ship P increases increasing angle attack because angle relative wind increases does differ ential thrust ascending descend ing blades prop full-size plane may reach large pitch angle rela tive wind slowed near stalling during accelerated pitch maneuvers See Fig 1 P will large angle tack large Most Stunt ships however have large full-span flaps dramati cally reduce body angle relative wind effective angle attack approaches stall See Fig 2 full-size planes stall angle always approximately same whether angle attack reached slow flight maneuvering loads 174 Model Aviation ACCURATE ABLE EASYTOREAD ACCUTACH NOW IN TWO MODELS 3 FUNCTION4 FUNCTION ACCUTACH ACCUTACH 2 79958995 Digital LCD tachometerSame useful capabilities has dual scale lOX-bOXas ACCU-TACH 1 stable RPM readoutincludes DC ammeter Full scale voltmeter canused check servo curbe used check/cyclerent Will find worn bindmost TXIRX battery com-ing stalled servo condi bos Reads loadtions w/SCA1 up 20 voltsAdd function ATi ACCESSORIESor OSAl- Quarter Scale Adaptor SCAl -Servo Current Adaptor ATi & AT2-500ma load . 995 Airtronics Futaba Kraft. 995 AVIINIrii3S Send check MO NorCal AVIONICS Inc P0 Box 70956 Sunnyvale CA 94086 Calif add 6% tax Add $2 S&H See dealer first