Cenirol Scale Bob & Dolly Wischer PAINTED INSIGNIA Arranging schedule procedures will help simplify painted appli cation military insignia greatest authen ticity important start correct dimen sions US military aircraft related another simple formula shown sketch beginning diameter star points Length width white bar overall dimensions blue area found multiplying star diameter various factors Two full-size layouts made heavy paper forthe white areasstar bars another outside perimeter blue area Note bars centered circle top edges level star horizon tal line templates cut out using X-Acto blade straightedge maintain align ment same templates can usually used four insignia plane Fuselage wing areas insignia used sprayed white first covering area slightly larger needed Spraying too large area merely adds little weight white dry star bar stencil laid over exact spot insig nia located held place bits masking tape Using very softbut reasonably sharppencil trace star bars Too much pencil pressure may indent surface unneces sarily Remove stencil completely mask star bars preferably thin plastic tape such tine-line masking tape cut curves tape will readily form around radius lay short length hard surface such styrene sheet use draftsmans compass cutter point inserted place lead cut exact radius required cut piece can lifted styrene placed position 06D [I UK 71 V __________ 0 0 0 4 0 N 0- O6D DIA OF STAR POINTS US insignia need start diameter star points diagram relates other dimensions star Bob goes step-by-step details column 40 Model Aviation muunneii rQu rnantom isa auCTed-tan Design Duane Johnsonuses Johnson ducted fan unit Webra Speed 61 Weight 10 lb Seen Chicago Expo model excess length cut off surrounding area mask over star bars new sharp razor blade Lay blade along can removed outer perimeter tem line cut tear off excess tape plate laid over star bars centered along blade minimum risk models equal areas blue visible surface edges Temporarily tape template avoid star bars masked spray shifting Trace pencil along templates insignia blue color again covering generous inner edge Remove template mask uoo wiscners newest Douglas A-20G WW II attack bomberwith twin HP 40s spans 77in weighs 125 lb Model surfacesare ccv~u wiii U fiberglass cloth K&B resin Paint model railroad Floquilfor minimum weight/maximum covering power Photo right shows paper templates Bob usedto outlinethe masking areas forthe A20swing insignia simplified procedure results uniformityof fouremblemsonthe model Bob goes greater detail process months column everything inside pencil lines mask remains place throughout painting complete plane Templates represent time well spent Uniform results time saved laying Out indi vidual insignia offset time spent templates hidden asset ability locate insignia precise spot relative other features model knowing will agree exactly documentation photos drawings prototype also permits initial viewing distance determine whether bars properly aligned nearby features such wing edges fuselage top older style insignia red surrounding blue circle white bars additional template needed color Static judging last months column touched upon subject what must done make Sport Scale model competitive Preci sion FAI Scale Static judging FA rules differs some minor respects AMA Under AMA rules model scored separately fidelity craftsmanship FAI combines two scores score general appearance applied AMA scored FAI although initial basic check made uncover obvious overall errors seven model areas fuselage wing tail landing gear engine area cockpit finish graded equally AMA scoring FAI seven given K-factor graded equally Finish color markings given highest K-factor cockpit graded about sh factor 4 Sport Scale model incomplete cockpit would severely downgraded FAI scoring FAI K-factors listed page 104 AMA rule book Under FAI rules contestant given additional static score special ingenuity presentation book should include list model features qualify provided made modeler purchased Examples items will boost score hand made tires wheels cooling gills operated throttle cockpit controls operated surfaces RC gear concealed inside pilot model engine exhausts scale location Dont expect ingenuity points working lights instru ments functioning scale items such flaps retracts unless retract mechanism special ly made modeler particular model using purchased actuators FAI static judging begins contestant given five minutes tell judges about unusual features explain discrepancies between photos three-view drawing also time demonstrate items listed under special ingenuity FAI judges will use scale rulers furnished modeler measure both three-view drawing model differs AMA Continued page 127 %$MAStER AIRSCIUW PR ESENTS QSA STRIPPER A95 U AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOLGREAT PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MASTERAI~ IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE GIF SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS PO BOX 112 WINDSOR PROPELLER CO WINDSOR CA 95492 RAPIER SPECIFICATIONS Machine-shaped balsa plywood hardwood Die-cut ribs Iconstant chord wing Dural main landing gear tricycle gear Hardware package nuts bolts control horns nose-gear bearing Fuel tank size 10 oz 12 oz Flying weight 6 lb Wingspan 57 Wing area 752 sq Wing chord 13 Fuselage 48 Build 15 hours gentle flyer 40 great sport flyer 60 Semi-symmetrical wing long moment big plane responsive flyer fully acrobatic Four-channel radio engine elevator rudder Complete building instruction booklet Basic materials balsa plywood selected hardwoods June 1981 41 Tom Tyler built Art Chester Jeep R/C Sportsman plans Prototype small 53-in span model Quarter Scale Weighs 51/i lb uses OS Max 35 course three times direction pausing 30 seconds square ZAHand dont cheat hard serious work Level II now may later save Helicopter continued RC Scale/Wischers Continued page 41 Precision Scale static judging con testant supplies rule used three-view models measured steel tape seven model areas given grade 1 10 grade multiplied Kfactor AMA Scale grading done 1 25 no K-factor Judges examine model specific items fuselage metal-type aircraft should show panel lines depth painted older planes lines should represent joints overlap proper direction shed water down rearward later aircraft joints flush line should have scribed appearance Rivets should proper size location type quantity Fabric covering should reveal properly sized located structure underneath Prototype stringers longerons ordinarily narrow rounded come contact fabric dont have sharp corners Tapes cover wear points Ifdocu mentation photos show imperfections wrinkles should duplicated Most important length width cross section dimensions locations features must correct Fabric-covered wings need rib tapes stitch ing authenticity necessarily obtrusive Tape edges almost vanish wellfinished plane pinked tape edges may evident especially fiberglass tapes used good close-up photo will help Spars should visible through fabric oversize trailing edges will lower score Wingspan chord airfoil thickness dihedral angle dimensions locations ailerons flaps will checked closely bolts used wing attachment should recessed covered unless visible original Panel lines metal wings need overlapped direction airflow External pushrods model-type devises horns ailerons elevators used original will reason downgrading Increased tail surface area wing area especially tips will particular interest judges Modelers sometimes widen tips sharply tapered wings increase stability change easily detected thickened wing tips increased dihedral prototype tail surfaces have airfoil section models surfaces flat expect reduction score Aileron flap tail surface hinges should have centers proper location means some commer cial model hinges may usable Landing gear shape location height can spoil scale appearance incorrect char acteristic Focke WuIf FW-1 90 its long legs see models plane shortened legs ground stability easier retraction Judges looking fault will also check tires shape diameter thick ness tread pattern sidewall markings retractable gear should swing scale manner well covers function proper sequence Wheel wells should painted have some detailed interior structure visible planes rather cluttered hydraulic lines conduits well equipped tail wheel should swivel scale-like manner correct mounting difficult decisions Scale modeling find method cooling model engine yet have hidden tend prefer partially exposed engine better cooling longer life sacrifice scale appearance However modelers now successfully cooling completely hidden engine elabor ate ducting Shape cowl should faithfully duplicated ventilation openings proper size location louvers hinges latches portions visible dummy engine need accurately represented model engine ex haust best piped out true scale location Scale propellers covered April 81 column AMA contest cockpit graded Importance equal other areas receives K-factor 4 FAI because scarcity information older planes Seats controls interior finish require approximately same effort size instrument panels definitely easier larger models very likely judge will reach inside rule measure dimensions Most cockpit cabin judging done eyeball proportions various details another deter mining factor decisions about size location Radio equipment should well hidden raising cockpit cabin floor considered good way conceal servos Finish color markings judging category Sport Precision FAI Scale least agreement relative importance Sport Scale could amount 30% score also heavily weighted FAI Getting markings correct place properly sized merely mechanical problem accounts errors However finish color can extremely sticky problem rules state Profile publications accep table yet printed artists renditions June 1981 127 Dont LET Quadrarequite job sonesnarwiiiTnisj7 cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitts straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty NOW YOU GET CHOICE BASE 31 ENGINE Ready-to-run excludes features below can purchased separately Machined Balenced Flywheel$1000 Ball Bearing Front Housing$2000 Exhaust Manifold$750 Six Bolt Hub Engine Mount COMPLETE MODIFIED 37 ENGINE Factory Bench-tested includes following HI-CARBON FORGEDONE-PIECE CRANK AND CONNECTING ROD ELECTRONIC IGNITION SIX-BOLT HUB AN6 POSITIONABLE EXHAUSi MANIFOLD BALL-BEARING ON CRANK Both Run Gas Oil Comolete Parts & Service Send hecko MO o w sh pcO 0 UPS Add$400shipping& ee aaog Oeae nqu es n ed HORNER SALSF INC CAPYOUR CLUB LOGO II II Let Know II I\Who Clubi III ers Arel1 II I Good ServicelI Inqu aboutCall Write To3 ou Custom Ill o ntad TtC STOP DOG RTS tOO 4730 5W 75th Ave. 44LlV Miami FL 33155 261 7765 U Great ftC Clubsi Low Minimum Reasonable Prices can remember contestant tried use artists painting Spitfire color authentication rejected Depending upon conditions storage color photos begin changing day printed assuming original exposure proces sing correct also acceptable Some modelers offer proof piece fabric original plane fabric same color originally could modeling faded airplane judges will place great faith scrap fabric comes down modelers ability copy color something however inaccurate give judges opportunity compare large part score derived original plane very likely also changed hue shade its lifetime case desert warplanes change drastic Texture finish also difficult pin down scale ratio plays apart addition degrees gloss also fineness weave fabric roughness paint consider Additional information static judging appears under title Annex pages 104 105 1980-81 AMA rule book Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 GRUMMAN WIDGEON MR Gs PRODUCTS 1010 Gratiot Box 161 Marysville MI 48040 RC Aerobatics/Van Putte Continued page 43 windy day moved away him faster combination factors probably caused dis orientation through couldnt think fast enough prevent crash airplanes sometimes strange beasts often seems just think step ahead cross us up think up new way crash moral story know engine torque effect ready Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beac/i FL 32548 RC Giant Scale/Beckman Continued page 47 lot letters asking didnt test other engine What published what room issue its beginning addition Quadra report mentioned above will test report engine can following hand future reports Mag Aero 2 Homelite 16 Evra 19 Husky 20 Husky 23 Kawasaki 315 Roper 19 Later year will looking custom conversions engines 3 6 cu range Correction time both price address wrong P-40 plan review April Price $3300 plus $200 postage Address Mammoth Scale Plans 3351 Pruneridge Ave Santa Clara CA 95051 Bob Beckman 8248 Holly Grove Court Manassas VA 22110 RC Pylon Racing/Hager Continued page 48 Marcos TX Formula races particular interest because little airplanes what copy Formula racing model airplanes Full-size Formula racing really started 1930s during Cleveland National Air Races airplanes like Howard Mike Ike Wittman Chief Oshkosh Bonzo Keith Rider R-4 R-6 Chester Jeep Goon Most machines one-of-a-kind types designed maximum performance eye toward cleanliness design lightness weight rather brute horsepower Thus direct lineage IFM/Formula Racers today same genious creativity innovative design continues today racing class Most machines IFM/Formula Racing individual designs variations designs several accepted types have become ex tremely successful popular such Cassutt Racers Shoestring Racers Owl Racers others class known today began Cleveland National Air Races 1947 refinements class over years since 1947 have phenomenal average speeds top competitors today almost hundred miles hour faster Bill Brennands winning speed first race back 1947 As its predecessors 1930s IFM/Formula Racer today built ground up purpose onlythat all-out performance competition rules class stringent racers must powered engine no 200 Cu displacement 100 hp racers participated events such Thompson Greve Trophy Races 30s much 1000 hp yet todays IFM/ Formula Racers going just about fast did machines bygone era using considerably less horsepower rules class state racers much have fixed nonretractable landing gear must weigh minimum 500 lbs have optimum visibility speedy lightweight racers turn three-mile closed pylon course speeds excess 200 mph making still fastest motor sport world usually built pilots race often constructed steel tube fabric wood wings fiberglass materials some combination of Several over years have also lightweight all-metal construction midget racers usually have wingspan fuselage length somewhere between 15 1 8 feet empty weight between 500 800 lbs Naturally lighter better cases talking some pilots found quite familiar Formula models seem doing some same things doing get speed 128 Model Aviation 380 Dixie Hwy. Reacher II Sll441 Tel 312 9422115 Ultimate El ving Boat The
Edition: Model Aviation - 1981/06
Page Numbers: 40, 41, 127, 128
Cenirol Scale Bob & Dolly Wischer PAINTED INSIGNIA Arranging schedule procedures will help simplify painted appli cation military insignia greatest authen ticity important start correct dimen sions US military aircraft related another simple formula shown sketch beginning diameter star points Length width white bar overall dimensions blue area found multiplying star diameter various factors Two full-size layouts made heavy paper forthe white areasstar bars another outside perimeter blue area Note bars centered circle top edges level star horizon tal line templates cut out using X-Acto blade straightedge maintain align ment same templates can usually used four insignia plane Fuselage wing areas insignia used sprayed white first covering area slightly larger needed Spraying too large area merely adds little weight white dry star bar stencil laid over exact spot insig nia located held place bits masking tape Using very softbut reasonably sharppencil trace star bars Too much pencil pressure may indent surface unneces sarily Remove stencil completely mask star bars preferably thin plastic tape such tine-line masking tape cut curves tape will readily form around radius lay short length hard surface such styrene sheet use draftsmans compass cutter point inserted place lead cut exact radius required cut piece can lifted styrene placed position 06D [I UK 71 V __________ 0 0 0 4 0 N 0- O6D DIA OF STAR POINTS US insignia need start diameter star points diagram relates other dimensions star Bob goes step-by-step details column 40 Model Aviation muunneii rQu rnantom isa auCTed-tan Design Duane Johnsonuses Johnson ducted fan unit Webra Speed 61 Weight 10 lb Seen Chicago Expo model excess length cut off surrounding area mask over star bars new sharp razor blade Lay blade along can removed outer perimeter tem line cut tear off excess tape plate laid over star bars centered along blade minimum risk models equal areas blue visible surface edges Temporarily tape template avoid star bars masked spray shifting Trace pencil along templates insignia blue color again covering generous inner edge Remove template mask uoo wiscners newest Douglas A-20G WW II attack bomberwith twin HP 40s spans 77in weighs 125 lb Model surfacesare ccv~u wiii U fiberglass cloth K&B resin Paint model railroad Floquilfor minimum weight/maximum covering power Photo right shows paper templates Bob usedto outlinethe masking areas forthe A20swing insignia simplified procedure results uniformityof fouremblemsonthe model Bob goes greater detail process months column everything inside pencil lines mask remains place throughout painting complete plane Templates represent time well spent Uniform results time saved laying Out indi vidual insignia offset time spent templates hidden asset ability locate insignia precise spot relative other features model knowing will agree exactly documentation photos drawings prototype also permits initial viewing distance determine whether bars properly aligned nearby features such wing edges fuselage top older style insignia red surrounding blue circle white bars additional template needed color Static judging last months column touched upon subject what must done make Sport Scale model competitive Preci sion FAI Scale Static judging FA rules differs some minor respects AMA Under AMA rules model scored separately fidelity craftsmanship FAI combines two scores score general appearance applied AMA scored FAI although initial basic check made uncover obvious overall errors seven model areas fuselage wing tail landing gear engine area cockpit finish graded equally AMA scoring FAI seven given K-factor graded equally Finish color markings given highest K-factor cockpit graded about sh factor 4 Sport Scale model incomplete cockpit would severely downgraded FAI scoring FAI K-factors listed page 104 AMA rule book Under FAI rules contestant given additional static score special ingenuity presentation book should include list model features qualify provided made modeler purchased Examples items will boost score hand made tires wheels cooling gills operated throttle cockpit controls operated surfaces RC gear concealed inside pilot model engine exhausts scale location Dont expect ingenuity points working lights instru ments functioning scale items such flaps retracts unless retract mechanism special ly made modeler particular model using purchased actuators FAI static judging begins contestant given five minutes tell judges about unusual features explain discrepancies between photos three-view drawing also time demonstrate items listed under special ingenuity FAI judges will use scale rulers furnished modeler measure both three-view drawing model differs AMA Continued page 127 %$MAStER AIRSCIUW PR ESENTS QSA STRIPPER A95 U AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOLGREAT PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MASTERAI~ IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE GIF SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS PO BOX 112 WINDSOR PROPELLER CO WINDSOR CA 95492 RAPIER SPECIFICATIONS Machine-shaped balsa plywood hardwood Die-cut ribs Iconstant chord wing Dural main landing gear tricycle gear Hardware package nuts bolts control horns nose-gear bearing Fuel tank size 10 oz 12 oz Flying weight 6 lb Wingspan 57 Wing area 752 sq Wing chord 13 Fuselage 48 Build 15 hours gentle flyer 40 great sport flyer 60 Semi-symmetrical wing long moment big plane responsive flyer fully acrobatic Four-channel radio engine elevator rudder Complete building instruction booklet Basic materials balsa plywood selected hardwoods June 1981 41 Tom Tyler built Art Chester Jeep R/C Sportsman plans Prototype small 53-in span model Quarter Scale Weighs 51/i lb uses OS Max 35 course three times direction pausing 30 seconds square ZAHand dont cheat hard serious work Level II now may later save Helicopter continued RC Scale/Wischers Continued page 41 Precision Scale static judging con testant supplies rule used three-view models measured steel tape seven model areas given grade 1 10 grade multiplied Kfactor AMA Scale grading done 1 25 no K-factor Judges examine model specific items fuselage metal-type aircraft should show panel lines depth painted older planes lines should represent joints overlap proper direction shed water down rearward later aircraft joints flush line should have scribed appearance Rivets should proper size location type quantity Fabric covering should reveal properly sized located structure underneath Prototype stringers longerons ordinarily narrow rounded come contact fabric dont have sharp corners Tapes cover wear points Ifdocu mentation photos show imperfections wrinkles should duplicated Most important length width cross section dimensions locations features must correct Fabric-covered wings need rib tapes stitch ing authenticity necessarily obtrusive Tape edges almost vanish wellfinished plane pinked tape edges may evident especially fiberglass tapes used good close-up photo will help Spars should visible through fabric oversize trailing edges will lower score Wingspan chord airfoil thickness dihedral angle dimensions locations ailerons flaps will checked closely bolts used wing attachment should recessed covered unless visible original Panel lines metal wings need overlapped direction airflow External pushrods model-type devises horns ailerons elevators used original will reason downgrading Increased tail surface area wing area especially tips will particular interest judges Modelers sometimes widen tips sharply tapered wings increase stability change easily detected thickened wing tips increased dihedral prototype tail surfaces have airfoil section models surfaces flat expect reduction score Aileron flap tail surface hinges should have centers proper location means some commer cial model hinges may usable Landing gear shape location height can spoil scale appearance incorrect char acteristic Focke WuIf FW-1 90 its long legs see models plane shortened legs ground stability easier retraction Judges looking fault will also check tires shape diameter thick ness tread pattern sidewall markings retractable gear should swing scale manner well covers function proper sequence Wheel wells should painted have some detailed interior structure visible planes rather cluttered hydraulic lines conduits well equipped tail wheel should swivel scale-like manner correct mounting difficult decisions Scale modeling find method cooling model engine yet have hidden tend prefer partially exposed engine better cooling longer life sacrifice scale appearance However modelers now successfully cooling completely hidden engine elabor ate ducting Shape cowl should faithfully duplicated ventilation openings proper size location louvers hinges latches portions visible dummy engine need accurately represented model engine ex haust best piped out true scale location Scale propellers covered April 81 column AMA contest cockpit graded Importance equal other areas receives K-factor 4 FAI because scarcity information older planes Seats controls interior finish require approximately same effort size instrument panels definitely easier larger models very likely judge will reach inside rule measure dimensions Most cockpit cabin judging done eyeball proportions various details another deter mining factor decisions about size location Radio equipment should well hidden raising cockpit cabin floor considered good way conceal servos Finish color markings judging category Sport Precision FAI Scale least agreement relative importance Sport Scale could amount 30% score also heavily weighted FAI Getting markings correct place properly sized merely mechanical problem accounts errors However finish color can extremely sticky problem rules state Profile publications accep table yet printed artists renditions June 1981 127 Dont LET Quadrarequite job sonesnarwiiiTnisj7 cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitts straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty NOW YOU GET CHOICE BASE 31 ENGINE Ready-to-run excludes features below can purchased separately Machined Balenced Flywheel$1000 Ball Bearing Front Housing$2000 Exhaust Manifold$750 Six Bolt Hub Engine Mount COMPLETE MODIFIED 37 ENGINE Factory Bench-tested includes following HI-CARBON FORGEDONE-PIECE CRANK AND CONNECTING ROD ELECTRONIC IGNITION SIX-BOLT HUB AN6 POSITIONABLE EXHAUSi MANIFOLD BALL-BEARING ON CRANK Both Run Gas Oil Comolete Parts & Service Send hecko MO o w sh pcO 0 UPS Add$400shipping& ee aaog Oeae nqu es n ed HORNER SALSF INC CAPYOUR CLUB LOGO II II Let Know II I\Who Clubi III ers Arel1 II I Good ServicelI Inqu aboutCall Write To3 ou Custom Ill o ntad TtC STOP DOG RTS tOO 4730 5W 75th Ave. 44LlV Miami FL 33155 261 7765 U Great ftC Clubsi Low Minimum Reasonable Prices can remember contestant tried use artists painting Spitfire color authentication rejected Depending upon conditions storage color photos begin changing day printed assuming original exposure proces sing correct also acceptable Some modelers offer proof piece fabric original plane fabric same color originally could modeling faded airplane judges will place great faith scrap fabric comes down modelers ability copy color something however inaccurate give judges opportunity compare large part score derived original plane very likely also changed hue shade its lifetime case desert warplanes change drastic Texture finish also difficult pin down scale ratio plays apart addition degrees gloss also fineness weave fabric roughness paint consider Additional information static judging appears under title Annex pages 104 105 1980-81 AMA rule book Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 GRUMMAN WIDGEON MR Gs PRODUCTS 1010 Gratiot Box 161 Marysville MI 48040 RC Aerobatics/Van Putte Continued page 43 windy day moved away him faster combination factors probably caused dis orientation through couldnt think fast enough prevent crash airplanes sometimes strange beasts often seems just think step ahead cross us up think up new way crash moral story know engine torque effect ready Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beac/i FL 32548 RC Giant Scale/Beckman Continued page 47 lot letters asking didnt test other engine What published what room issue its beginning addition Quadra report mentioned above will test report engine can following hand future reports Mag Aero 2 Homelite 16 Evra 19 Husky 20 Husky 23 Kawasaki 315 Roper 19 Later year will looking custom conversions engines 3 6 cu range Correction time both price address wrong P-40 plan review April Price $3300 plus $200 postage Address Mammoth Scale Plans 3351 Pruneridge Ave Santa Clara CA 95051 Bob Beckman 8248 Holly Grove Court Manassas VA 22110 RC Pylon Racing/Hager Continued page 48 Marcos TX Formula races particular interest because little airplanes what copy Formula racing model airplanes Full-size Formula racing really started 1930s during Cleveland National Air Races airplanes like Howard Mike Ike Wittman Chief Oshkosh Bonzo Keith Rider R-4 R-6 Chester Jeep Goon Most machines one-of-a-kind types designed maximum performance eye toward cleanliness design lightness weight rather brute horsepower Thus direct lineage IFM/Formula Racers today same genious creativity innovative design continues today racing class Most machines IFM/Formula Racing individual designs variations designs several accepted types have become ex tremely successful popular such Cassutt Racers Shoestring Racers Owl Racers others class known today began Cleveland National Air Races 1947 refinements class over years since 1947 have phenomenal average speeds top competitors today almost hundred miles hour faster Bill Brennands winning speed first race back 1947 As its predecessors 1930s IFM/Formula Racer today built ground up purpose onlythat all-out performance competition rules class stringent racers must powered engine no 200 Cu displacement 100 hp racers participated events such Thompson Greve Trophy Races 30s much 1000 hp yet todays IFM/ Formula Racers going just about fast did machines bygone era using considerably less horsepower rules class state racers much have fixed nonretractable landing gear must weigh minimum 500 lbs have optimum visibility speedy lightweight racers turn three-mile closed pylon course speeds excess 200 mph making still fastest motor sport world usually built pilots race often constructed steel tube fabric wood wings fiberglass materials some combination of Several over years have also lightweight all-metal construction midget racers usually have wingspan fuselage length somewhere between 15 1 8 feet empty weight between 500 800 lbs Naturally lighter better cases talking some pilots found quite familiar Formula models seem doing some same things doing get speed 128 Model Aviation 380 Dixie Hwy. Reacher II Sll441 Tel 312 9422115 Ultimate El ving Boat The
Edition: Model Aviation - 1981/06
Page Numbers: 40, 41, 127, 128
Cenirol Scale Bob & Dolly Wischer PAINTED INSIGNIA Arranging schedule procedures will help simplify painted appli cation military insignia greatest authen ticity important start correct dimen sions US military aircraft related another simple formula shown sketch beginning diameter star points Length width white bar overall dimensions blue area found multiplying star diameter various factors Two full-size layouts made heavy paper forthe white areasstar bars another outside perimeter blue area Note bars centered circle top edges level star horizon tal line templates cut out using X-Acto blade straightedge maintain align ment same templates can usually used four insignia plane Fuselage wing areas insignia used sprayed white first covering area slightly larger needed Spraying too large area merely adds little weight white dry star bar stencil laid over exact spot insig nia located held place bits masking tape Using very softbut reasonably sharppencil trace star bars Too much pencil pressure may indent surface unneces sarily Remove stencil completely mask star bars preferably thin plastic tape such tine-line masking tape cut curves tape will readily form around radius lay short length hard surface such styrene sheet use draftsmans compass cutter point inserted place lead cut exact radius required cut piece can lifted styrene placed position 06D [I UK 71 V __________ 0 0 0 4 0 N 0- O6D DIA OF STAR POINTS US insignia need start diameter star points diagram relates other dimensions star Bob goes step-by-step details column 40 Model Aviation muunneii rQu rnantom isa auCTed-tan Design Duane Johnsonuses Johnson ducted fan unit Webra Speed 61 Weight 10 lb Seen Chicago Expo model excess length cut off surrounding area mask over star bars new sharp razor blade Lay blade along can removed outer perimeter tem line cut tear off excess tape plate laid over star bars centered along blade minimum risk models equal areas blue visible surface edges Temporarily tape template avoid star bars masked spray shifting Trace pencil along templates insignia blue color again covering generous inner edge Remove template mask uoo wiscners newest Douglas A-20G WW II attack bomberwith twin HP 40s spans 77in weighs 125 lb Model surfacesare ccv~u wiii U fiberglass cloth K&B resin Paint model railroad Floquilfor minimum weight/maximum covering power Photo right shows paper templates Bob usedto outlinethe masking areas forthe A20swing insignia simplified procedure results uniformityof fouremblemsonthe model Bob goes greater detail process months column everything inside pencil lines mask remains place throughout painting complete plane Templates represent time well spent Uniform results time saved laying Out indi vidual insignia offset time spent templates hidden asset ability locate insignia precise spot relative other features model knowing will agree exactly documentation photos drawings prototype also permits initial viewing distance determine whether bars properly aligned nearby features such wing edges fuselage top older style insignia red surrounding blue circle white bars additional template needed color Static judging last months column touched upon subject what must done make Sport Scale model competitive Preci sion FAI Scale Static judging FA rules differs some minor respects AMA Under AMA rules model scored separately fidelity craftsmanship FAI combines two scores score general appearance applied AMA scored FAI although initial basic check made uncover obvious overall errors seven model areas fuselage wing tail landing gear engine area cockpit finish graded equally AMA scoring FAI seven given K-factor graded equally Finish color markings given highest K-factor cockpit graded about sh factor 4 Sport Scale model incomplete cockpit would severely downgraded FAI scoring FAI K-factors listed page 104 AMA rule book Under FAI rules contestant given additional static score special ingenuity presentation book should include list model features qualify provided made modeler purchased Examples items will boost score hand made tires wheels cooling gills operated throttle cockpit controls operated surfaces RC gear concealed inside pilot model engine exhausts scale location Dont expect ingenuity points working lights instru ments functioning scale items such flaps retracts unless retract mechanism special ly made modeler particular model using purchased actuators FAI static judging begins contestant given five minutes tell judges about unusual features explain discrepancies between photos three-view drawing also time demonstrate items listed under special ingenuity FAI judges will use scale rulers furnished modeler measure both three-view drawing model differs AMA Continued page 127 %$MAStER AIRSCIUW PR ESENTS QSA STRIPPER A95 U AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOLGREAT PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MASTERAI~ IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE GIF SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS PO BOX 112 WINDSOR PROPELLER CO WINDSOR CA 95492 RAPIER SPECIFICATIONS Machine-shaped balsa plywood hardwood Die-cut ribs Iconstant chord wing Dural main landing gear tricycle gear Hardware package nuts bolts control horns nose-gear bearing Fuel tank size 10 oz 12 oz Flying weight 6 lb Wingspan 57 Wing area 752 sq Wing chord 13 Fuselage 48 Build 15 hours gentle flyer 40 great sport flyer 60 Semi-symmetrical wing long moment big plane responsive flyer fully acrobatic Four-channel radio engine elevator rudder Complete building instruction booklet Basic materials balsa plywood selected hardwoods June 1981 41 Tom Tyler built Art Chester Jeep R/C Sportsman plans Prototype small 53-in span model Quarter Scale Weighs 51/i lb uses OS Max 35 course three times direction pausing 30 seconds square ZAHand dont cheat hard serious work Level II now may later save Helicopter continued RC Scale/Wischers Continued page 41 Precision Scale static judging con testant supplies rule used three-view models measured steel tape seven model areas given grade 1 10 grade multiplied Kfactor AMA Scale grading done 1 25 no K-factor Judges examine model specific items fuselage metal-type aircraft should show panel lines depth painted older planes lines should represent joints overlap proper direction shed water down rearward later aircraft joints flush line should have scribed appearance Rivets should proper size location type quantity Fabric covering should reveal properly sized located structure underneath Prototype stringers longerons ordinarily narrow rounded come contact fabric dont have sharp corners Tapes cover wear points Ifdocu mentation photos show imperfections wrinkles should duplicated Most important length width cross section dimensions locations features must correct Fabric-covered wings need rib tapes stitch ing authenticity necessarily obtrusive Tape edges almost vanish wellfinished plane pinked tape edges may evident especially fiberglass tapes used good close-up photo will help Spars should visible through fabric oversize trailing edges will lower score Wingspan chord airfoil thickness dihedral angle dimensions locations ailerons flaps will checked closely bolts used wing attachment should recessed covered unless visible original Panel lines metal wings need overlapped direction airflow External pushrods model-type devises horns ailerons elevators used original will reason downgrading Increased tail surface area wing area especially tips will particular interest judges Modelers sometimes widen tips sharply tapered wings increase stability change easily detected thickened wing tips increased dihedral prototype tail surfaces have airfoil section models surfaces flat expect reduction score Aileron flap tail surface hinges should have centers proper location means some commer cial model hinges may usable Landing gear shape location height can spoil scale appearance incorrect char acteristic Focke WuIf FW-1 90 its long legs see models plane shortened legs ground stability easier retraction Judges looking fault will also check tires shape diameter thick ness tread pattern sidewall markings retractable gear should swing scale manner well covers function proper sequence Wheel wells should painted have some detailed interior structure visible planes rather cluttered hydraulic lines conduits well equipped tail wheel should swivel scale-like manner correct mounting difficult decisions Scale modeling find method cooling model engine yet have hidden tend prefer partially exposed engine better cooling longer life sacrifice scale appearance However modelers now successfully cooling completely hidden engine elabor ate ducting Shape cowl should faithfully duplicated ventilation openings proper size location louvers hinges latches portions visible dummy engine need accurately represented model engine ex haust best piped out true scale location Scale propellers covered April 81 column AMA contest cockpit graded Importance equal other areas receives K-factor 4 FAI because scarcity information older planes Seats controls interior finish require approximately same effort size instrument panels definitely easier larger models very likely judge will reach inside rule measure dimensions Most cockpit cabin judging done eyeball proportions various details another deter mining factor decisions about size location Radio equipment should well hidden raising cockpit cabin floor considered good way conceal servos Finish color markings judging category Sport Precision FAI Scale least agreement relative importance Sport Scale could amount 30% score also heavily weighted FAI Getting markings correct place properly sized merely mechanical problem accounts errors However finish color can extremely sticky problem rules state Profile publications accep table yet printed artists renditions June 1981 127 Dont LET Quadrarequite job sonesnarwiiiTnisj7 cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitts straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty NOW YOU GET CHOICE BASE 31 ENGINE Ready-to-run excludes features below can purchased separately Machined Balenced Flywheel$1000 Ball Bearing Front Housing$2000 Exhaust Manifold$750 Six Bolt Hub Engine Mount COMPLETE MODIFIED 37 ENGINE Factory Bench-tested includes following HI-CARBON FORGEDONE-PIECE CRANK AND CONNECTING ROD ELECTRONIC IGNITION SIX-BOLT HUB AN6 POSITIONABLE EXHAUSi MANIFOLD BALL-BEARING ON CRANK Both Run Gas Oil Comolete Parts & Service Send hecko MO o w sh pcO 0 UPS Add$400shipping& ee aaog Oeae nqu es n ed HORNER SALSF INC CAPYOUR CLUB LOGO II II Let Know II I\Who Clubi III ers Arel1 II I Good ServicelI Inqu aboutCall Write To3 ou Custom Ill o ntad TtC STOP DOG RTS tOO 4730 5W 75th Ave. 44LlV Miami FL 33155 261 7765 U Great ftC Clubsi Low Minimum Reasonable Prices can remember contestant tried use artists painting Spitfire color authentication rejected Depending upon conditions storage color photos begin changing day printed assuming original exposure proces sing correct also acceptable Some modelers offer proof piece fabric original plane fabric same color originally could modeling faded airplane judges will place great faith scrap fabric comes down modelers ability copy color something however inaccurate give judges opportunity compare large part score derived original plane very likely also changed hue shade its lifetime case desert warplanes change drastic Texture finish also difficult pin down scale ratio plays apart addition degrees gloss also fineness weave fabric roughness paint consider Additional information static judging appears under title Annex pages 104 105 1980-81 AMA rule book Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 GRUMMAN WIDGEON MR Gs PRODUCTS 1010 Gratiot Box 161 Marysville MI 48040 RC Aerobatics/Van Putte Continued page 43 windy day moved away him faster combination factors probably caused dis orientation through couldnt think fast enough prevent crash airplanes sometimes strange beasts often seems just think step ahead cross us up think up new way crash moral story know engine torque effect ready Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beac/i FL 32548 RC Giant Scale/Beckman Continued page 47 lot letters asking didnt test other engine What published what room issue its beginning addition Quadra report mentioned above will test report engine can following hand future reports Mag Aero 2 Homelite 16 Evra 19 Husky 20 Husky 23 Kawasaki 315 Roper 19 Later year will looking custom conversions engines 3 6 cu range Correction time both price address wrong P-40 plan review April Price $3300 plus $200 postage Address Mammoth Scale Plans 3351 Pruneridge Ave Santa Clara CA 95051 Bob Beckman 8248 Holly Grove Court Manassas VA 22110 RC Pylon Racing/Hager Continued page 48 Marcos TX Formula races particular interest because little airplanes what copy Formula racing model airplanes Full-size Formula racing really started 1930s during Cleveland National Air Races airplanes like Howard Mike Ike Wittman Chief Oshkosh Bonzo Keith Rider R-4 R-6 Chester Jeep Goon Most machines one-of-a-kind types designed maximum performance eye toward cleanliness design lightness weight rather brute horsepower Thus direct lineage IFM/Formula Racers today same genious creativity innovative design continues today racing class Most machines IFM/Formula Racing individual designs variations designs several accepted types have become ex tremely successful popular such Cassutt Racers Shoestring Racers Owl Racers others class known today began Cleveland National Air Races 1947 refinements class over years since 1947 have phenomenal average speeds top competitors today almost hundred miles hour faster Bill Brennands winning speed first race back 1947 As its predecessors 1930s IFM/Formula Racer today built ground up purpose onlythat all-out performance competition rules class stringent racers must powered engine no 200 Cu displacement 100 hp racers participated events such Thompson Greve Trophy Races 30s much 1000 hp yet todays IFM/ Formula Racers going just about fast did machines bygone era using considerably less horsepower rules class state racers much have fixed nonretractable landing gear must weigh minimum 500 lbs have optimum visibility speedy lightweight racers turn three-mile closed pylon course speeds excess 200 mph making still fastest motor sport world usually built pilots race often constructed steel tube fabric wood wings fiberglass materials some combination of Several over years have also lightweight all-metal construction midget racers usually have wingspan fuselage length somewhere between 15 1 8 feet empty weight between 500 800 lbs Naturally lighter better cases talking some pilots found quite familiar Formula models seem doing some same things doing get speed 128 Model Aviation 380 Dixie Hwy. Reacher II Sll441 Tel 312 9422115 Ultimate El ving Boat The
Edition: Model Aviation - 1981/06
Page Numbers: 40, 41, 127, 128
Cenirol Scale Bob & Dolly Wischer PAINTED INSIGNIA Arranging schedule procedures will help simplify painted appli cation military insignia greatest authen ticity important start correct dimen sions US military aircraft related another simple formula shown sketch beginning diameter star points Length width white bar overall dimensions blue area found multiplying star diameter various factors Two full-size layouts made heavy paper forthe white areasstar bars another outside perimeter blue area Note bars centered circle top edges level star horizon tal line templates cut out using X-Acto blade straightedge maintain align ment same templates can usually used four insignia plane Fuselage wing areas insignia used sprayed white first covering area slightly larger needed Spraying too large area merely adds little weight white dry star bar stencil laid over exact spot insig nia located held place bits masking tape Using very softbut reasonably sharppencil trace star bars Too much pencil pressure may indent surface unneces sarily Remove stencil completely mask star bars preferably thin plastic tape such tine-line masking tape cut curves tape will readily form around radius lay short length hard surface such styrene sheet use draftsmans compass cutter point inserted place lead cut exact radius required cut piece can lifted styrene placed position 06D [I UK 71 V __________ 0 0 0 4 0 N 0- O6D DIA OF STAR POINTS US insignia need start diameter star points diagram relates other dimensions star Bob goes step-by-step details column 40 Model Aviation muunneii rQu rnantom isa auCTed-tan Design Duane Johnsonuses Johnson ducted fan unit Webra Speed 61 Weight 10 lb Seen Chicago Expo model excess length cut off surrounding area mask over star bars new sharp razor blade Lay blade along can removed outer perimeter tem line cut tear off excess tape plate laid over star bars centered along blade minimum risk models equal areas blue visible surface edges Temporarily tape template avoid star bars masked spray shifting Trace pencil along templates insignia blue color again covering generous inner edge Remove template mask uoo wiscners newest Douglas A-20G WW II attack bomberwith twin HP 40s spans 77in weighs 125 lb Model surfacesare ccv~u wiii U fiberglass cloth K&B resin Paint model railroad Floquilfor minimum weight/maximum covering power Photo right shows paper templates Bob usedto outlinethe masking areas forthe A20swing insignia simplified procedure results uniformityof fouremblemsonthe model Bob goes greater detail process months column everything inside pencil lines mask remains place throughout painting complete plane Templates represent time well spent Uniform results time saved laying Out indi vidual insignia offset time spent templates hidden asset ability locate insignia precise spot relative other features model knowing will agree exactly documentation photos drawings prototype also permits initial viewing distance determine whether bars properly aligned nearby features such wing edges fuselage top older style insignia red surrounding blue circle white bars additional template needed color Static judging last months column touched upon subject what must done make Sport Scale model competitive Preci sion FAI Scale Static judging FA rules differs some minor respects AMA Under AMA rules model scored separately fidelity craftsmanship FAI combines two scores score general appearance applied AMA scored FAI although initial basic check made uncover obvious overall errors seven model areas fuselage wing tail landing gear engine area cockpit finish graded equally AMA scoring FAI seven given K-factor graded equally Finish color markings given highest K-factor cockpit graded about sh factor 4 Sport Scale model incomplete cockpit would severely downgraded FAI scoring FAI K-factors listed page 104 AMA rule book Under FAI rules contestant given additional static score special ingenuity presentation book should include list model features qualify provided made modeler purchased Examples items will boost score hand made tires wheels cooling gills operated throttle cockpit controls operated surfaces RC gear concealed inside pilot model engine exhausts scale location Dont expect ingenuity points working lights instru ments functioning scale items such flaps retracts unless retract mechanism special ly made modeler particular model using purchased actuators FAI static judging begins contestant given five minutes tell judges about unusual features explain discrepancies between photos three-view drawing also time demonstrate items listed under special ingenuity FAI judges will use scale rulers furnished modeler measure both three-view drawing model differs AMA Continued page 127 %$MAStER AIRSCIUW PR ESENTS QSA STRIPPER A95 U AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOLGREAT PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MASTERAI~ IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE GIF SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS PO BOX 112 WINDSOR PROPELLER CO WINDSOR CA 95492 RAPIER SPECIFICATIONS Machine-shaped balsa plywood hardwood Die-cut ribs Iconstant chord wing Dural main landing gear tricycle gear Hardware package nuts bolts control horns nose-gear bearing Fuel tank size 10 oz 12 oz Flying weight 6 lb Wingspan 57 Wing area 752 sq Wing chord 13 Fuselage 48 Build 15 hours gentle flyer 40 great sport flyer 60 Semi-symmetrical wing long moment big plane responsive flyer fully acrobatic Four-channel radio engine elevator rudder Complete building instruction booklet Basic materials balsa plywood selected hardwoods June 1981 41 Tom Tyler built Art Chester Jeep R/C Sportsman plans Prototype small 53-in span model Quarter Scale Weighs 51/i lb uses OS Max 35 course three times direction pausing 30 seconds square ZAHand dont cheat hard serious work Level II now may later save Helicopter continued RC Scale/Wischers Continued page 41 Precision Scale static judging con testant supplies rule used three-view models measured steel tape seven model areas given grade 1 10 grade multiplied Kfactor AMA Scale grading done 1 25 no K-factor Judges examine model specific items fuselage metal-type aircraft should show panel lines depth painted older planes lines should represent joints overlap proper direction shed water down rearward later aircraft joints flush line should have scribed appearance Rivets should proper size location type quantity Fabric covering should reveal properly sized located structure underneath Prototype stringers longerons ordinarily narrow rounded come contact fabric dont have sharp corners Tapes cover wear points Ifdocu mentation photos show imperfections wrinkles should duplicated Most important length width cross section dimensions locations features must correct Fabric-covered wings need rib tapes stitch ing authenticity necessarily obtrusive Tape edges almost vanish wellfinished plane pinked tape edges may evident especially fiberglass tapes used good close-up photo will help Spars should visible through fabric oversize trailing edges will lower score Wingspan chord airfoil thickness dihedral angle dimensions locations ailerons flaps will checked closely bolts used wing attachment should recessed covered unless visible original Panel lines metal wings need overlapped direction airflow External pushrods model-type devises horns ailerons elevators used original will reason downgrading Increased tail surface area wing area especially tips will particular interest judges Modelers sometimes widen tips sharply tapered wings increase stability change easily detected thickened wing tips increased dihedral prototype tail surfaces have airfoil section models surfaces flat expect reduction score Aileron flap tail surface hinges should have centers proper location means some commer cial model hinges may usable Landing gear shape location height can spoil scale appearance incorrect char acteristic Focke WuIf FW-1 90 its long legs see models plane shortened legs ground stability easier retraction Judges looking fault will also check tires shape diameter thick ness tread pattern sidewall markings retractable gear should swing scale manner well covers function proper sequence Wheel wells should painted have some detailed interior structure visible planes rather cluttered hydraulic lines conduits well equipped tail wheel should swivel scale-like manner correct mounting difficult decisions Scale modeling find method cooling model engine yet have hidden tend prefer partially exposed engine better cooling longer life sacrifice scale appearance However modelers now successfully cooling completely hidden engine elabor ate ducting Shape cowl should faithfully duplicated ventilation openings proper size location louvers hinges latches portions visible dummy engine need accurately represented model engine ex haust best piped out true scale location Scale propellers covered April 81 column AMA contest cockpit graded Importance equal other areas receives K-factor 4 FAI because scarcity information older planes Seats controls interior finish require approximately same effort size instrument panels definitely easier larger models very likely judge will reach inside rule measure dimensions Most cockpit cabin judging done eyeball proportions various details another deter mining factor decisions about size location Radio equipment should well hidden raising cockpit cabin floor considered good way conceal servos Finish color markings judging category Sport Precision FAI Scale least agreement relative importance Sport Scale could amount 30% score also heavily weighted FAI Getting markings correct place properly sized merely mechanical problem accounts errors However finish color can extremely sticky problem rules state Profile publications accep table yet printed artists renditions June 1981 127 Dont LET Quadrarequite job sonesnarwiiiTnisj7 cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitts straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty NOW YOU GET CHOICE BASE 31 ENGINE Ready-to-run excludes features below can purchased separately Machined Balenced Flywheel$1000 Ball Bearing Front Housing$2000 Exhaust Manifold$750 Six Bolt Hub Engine Mount COMPLETE MODIFIED 37 ENGINE Factory Bench-tested includes following HI-CARBON FORGEDONE-PIECE CRANK AND CONNECTING ROD ELECTRONIC IGNITION SIX-BOLT HUB AN6 POSITIONABLE EXHAUSi MANIFOLD BALL-BEARING ON CRANK Both Run Gas Oil Comolete Parts & Service Send hecko MO o w sh pcO 0 UPS Add$400shipping& ee aaog Oeae nqu es n ed HORNER SALSF INC CAPYOUR CLUB LOGO II II Let Know II I\Who Clubi III ers Arel1 II I Good ServicelI Inqu aboutCall Write To3 ou Custom Ill o ntad TtC STOP DOG RTS tOO 4730 5W 75th Ave. 44LlV Miami FL 33155 261 7765 U Great ftC Clubsi Low Minimum Reasonable Prices can remember contestant tried use artists painting Spitfire color authentication rejected Depending upon conditions storage color photos begin changing day printed assuming original exposure proces sing correct also acceptable Some modelers offer proof piece fabric original plane fabric same color originally could modeling faded airplane judges will place great faith scrap fabric comes down modelers ability copy color something however inaccurate give judges opportunity compare large part score derived original plane very likely also changed hue shade its lifetime case desert warplanes change drastic Texture finish also difficult pin down scale ratio plays apart addition degrees gloss also fineness weave fabric roughness paint consider Additional information static judging appears under title Annex pages 104 105 1980-81 AMA rule book Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 GRUMMAN WIDGEON MR Gs PRODUCTS 1010 Gratiot Box 161 Marysville MI 48040 RC Aerobatics/Van Putte Continued page 43 windy day moved away him faster combination factors probably caused dis orientation through couldnt think fast enough prevent crash airplanes sometimes strange beasts often seems just think step ahead cross us up think up new way crash moral story know engine torque effect ready Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beac/i FL 32548 RC Giant Scale/Beckman Continued page 47 lot letters asking didnt test other engine What published what room issue its beginning addition Quadra report mentioned above will test report engine can following hand future reports Mag Aero 2 Homelite 16 Evra 19 Husky 20 Husky 23 Kawasaki 315 Roper 19 Later year will looking custom conversions engines 3 6 cu range Correction time both price address wrong P-40 plan review April Price $3300 plus $200 postage Address Mammoth Scale Plans 3351 Pruneridge Ave Santa Clara CA 95051 Bob Beckman 8248 Holly Grove Court Manassas VA 22110 RC Pylon Racing/Hager Continued page 48 Marcos TX Formula races particular interest because little airplanes what copy Formula racing model airplanes Full-size Formula racing really started 1930s during Cleveland National Air Races airplanes like Howard Mike Ike Wittman Chief Oshkosh Bonzo Keith Rider R-4 R-6 Chester Jeep Goon Most machines one-of-a-kind types designed maximum performance eye toward cleanliness design lightness weight rather brute horsepower Thus direct lineage IFM/Formula Racers today same genious creativity innovative design continues today racing class Most machines IFM/Formula Racing individual designs variations designs several accepted types have become ex tremely successful popular such Cassutt Racers Shoestring Racers Owl Racers others class known today began Cleveland National Air Races 1947 refinements class over years since 1947 have phenomenal average speeds top competitors today almost hundred miles hour faster Bill Brennands winning speed first race back 1947 As its predecessors 1930s IFM/Formula Racer today built ground up purpose onlythat all-out performance competition rules class stringent racers must powered engine no 200 Cu displacement 100 hp racers participated events such Thompson Greve Trophy Races 30s much 1000 hp yet todays IFM/ Formula Racers going just about fast did machines bygone era using considerably less horsepower rules class state racers much have fixed nonretractable landing gear must weigh minimum 500 lbs have optimum visibility speedy lightweight racers turn three-mile closed pylon course speeds excess 200 mph making still fastest motor sport world usually built pilots race often constructed steel tube fabric wood wings fiberglass materials some combination of Several over years have also lightweight all-metal construction midget racers usually have wingspan fuselage length somewhere between 15 1 8 feet empty weight between 500 800 lbs Naturally lighter better cases talking some pilots found quite familiar Formula models seem doing some same things doing get speed 128 Model Aviation 380 Dixie Hwy. Reacher II Sll441 Tel 312 9422115 Ultimate El ving Boat The