SCALE Bob & Dolly Wischer OSHKOSH again paid annual visit FAA Convention Oslikosh WI during interval between Ottawa World Champion ships Wilmington Nats surprised find prototypes Piel Emeraude Beryl parked near other Also nearby Hiperbipe Bob Underwood modeled Norm Taylors Beryl after seven years hours flying maintains youthful appearance such perfect condition awarded honorable mention custom-built aircraft division have often heard said contestants judges contest Scale models look better prototypes case model could compete full-size plane thin finish model intended weight reductions no longer disguises glue joints wood grain adequately Both planes finished Randolph dope moral story dont skimp finish long life desired reduced weight use lighter materials structure particularly tail section especially gratifying us Scale model ers find winning planes competitions Oshkosh often owned built people have modeling backgrounds addition full-size Beryl Norm Taylor also flies 1/5scale RC model similar Starduster Too Maynard Patty Ingalls won Outstanding Workmanship Award 1980 another example capabilities modelers Reserve Grand Champion Vintage Aircraft Award went modelers Tom Dietrich Frank Evans perfectly restored deHavil land Tiger Moth Hale Wallace has built two Steen Skybolts both have received first place awards Oshkosh Dario Brisighella restored Stinson Station Wagon first-place condition built prize-winning quarterscale model prototype list endless What marvelous place Oshkosh modeler searching Out Scale subjects just too choose Imagine over 1500 show aircraft including 466 custom home-builts 157 antiques 620 classics 141 warbirds place freedom EAA members examine photograph first Sunday convention estimated 7000 planes parked Wittman Airport Most factory-built sure kits also available warbirds collection would satisfy modeler looking different P-Si Sea Fury Corsair AT-6 outstanding external finish appearance No battle-weary derelicts people own the3e expensive toys lavish care attention pride-and-joy planes like weathered appearance little selection endless array polished well-kept aircraft pure delight high points Oshkosh convention daily air show aerobatic military aircraft display proficiencies Scale modelers viewpoint shows very revealing maneuvers can performed various planes Some us have flown models aerobatic types would find maneuvers perform quite con servative compared what can done full-size plane especially regard succession actions follow another rapid order spectacular stunts done vertically angle percent age much higher during routine see model flying best example aerobatic routine World Champion Leo mer u,au uu.t uu O~IISb ~masterfrom Pilot kit Model spans 54 finished William Trutts Bristol Bullet lost wheel dropped out first-place tie because Jim MonoKote RS Perfect paint uses OS Walter holds plane William replaces wheel action took place Sport Scale 25 Photo taken Waukesha Scale Rally event meet hosted West Shore Flying Society Harrisburg PA 34 Model Aviation Frank Zagar really likes SE-5sall three Seen RC Hobbies Waukesha Scale Rally Wisconsin built Top Flite kits powered Enya 458 Loudenslager Laser 200 modified Stephens Acro gave us see five minutes could absorbed remembered Vexy few military planes flown aerobatically Oshkosh FM-2 Wildcat F8F Bearcat modified aerobatics carried out sort things see Scale military models performing spoke pilot has distinction having flown Don Coe saw plans foran FFTipsy Nipper ModelAirplane News decided build itas RC Model weighs 2 lb 2 spans 40 usesan OS Max 10 Rudderandelevatorcontrol piston-engine military fighters some jets informed us prolonged negative-G flight possible unless plane has modified particularly fuel feed mentioned some jet fighters have sort clunk tank such used models will permit inversion about 12 seconds works properly Without engine restart requires time altitude may available noticeable features fullscale aerobatic flight use throttle during descent engine rpm doesnt change greatly exhaust note tells us throttle wide open certainly closed com pletely model aerobatic flight suspect modelers close throttles com pletely because think judges expect AMA FAI rule book RC Scale Flight Judging Guides state throttle should closed top loop Cuban Eight example definitely what see hear watching full-scale aerobatics throttling done prevent over-revving throttle closed completely stall turn Continued page 110 Bob Morrill spent over 2000 hours completethis Kyushu J7W1 Shinden WW II craft 15000 Sig flat-head copper rivets 500 eyeglass-hinge screws emplaced finish applied over 15 coats sanded sealer Model spans 64 weighs 9 lb 2 oz powered K&B 61 Scale 1 Have Barrel Fun FX BULK FUEL 1n55 Gallon Drums Drums Active Flyers Fox Can Keep Flying DUKES FUEL 10% Nltro 55 Gal Drum net $26000 includes Drum FAI FUEL No Nitro 55 Gal Drum net $14500 includes Drum Ship Freight Collect Payment required advance Drums Fuel . Hot Line can Help 501 646-1656 Pint Quart Gallon FOX FUEL o FOX SUPERFUELGood breako in oil rich formula 28% o Pt $305 Ot $505 Gal $1675 o DUKES FUEL Especially blended RIO Sport flying o Pt $340 Ot $560 Gal $1895 MISSILE MIST premium fuel 0 power 25% Nitro o Pt $420 Qt $760 Gal $2590 Fx MFG Co 5305 TOWSON AVE FORT SMITH ARK 72901 February 1981 35 ATTENTION ERS Epoxy Gla. Cowl NOSEN HOSTETLER PICA BALSA USA PLAiT- CONCEPT FLEET SID MORGAN- RCM T CRAFT BYRON/SHEBER PITTS FOLKER D7 BOEING P-26 &F4-B4 GEE BEE MOD Y KRAFT SUPER FLY & SCALE AND OTHERS Send S ASE Complete List T&D FIBERGLASS SPECIALTIES 30925 Bkck Garden City Ml 48135 Phi -313 421 6358 SCALE WHE RADIO CONTROL ROL-UNE 0 _ 0 0 VINTAGESMOOTHGOLDEN AGENEW sizes2YzCONTOURsizes21/iBALLOON 343/"23/43431/a 1334134132/z41/2 11443/i11/4311/443/i34514 11/251/24/z1hz53 1ls6/21451/41s61/2 ELS FREE-FLIGHT SCALE PILOTS CYUNDERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS EROS INTh SEND $1 FOR COMPLETE ILLUSTRATED CATALOG ___________________ DEPT MA PAWNEE ST SAN MARCOS CA 9 INTRODUCING Tile American RJL K6I R/C ENGINE RJL Industries now produces renowned engine formerly manufactured Kraft Systems Inc schnuerle ported 61 cubic inch engine provides easy starting high performance longevity Produced finest materials workmanship quality assurance youll proud have aircraft powered K61 FEATURES INCLUDE Schnuerle Ports Boost Port Double Ball Bearings Forged Alloy Piston & Con Rod Bushed Connecting Rod 0- ring Sealed Back Cover 16 HP 15500 RPM SUGGESTED RETAIL $13995 Muffler Included Send Free Catalog Today R J L INDUSTRIES P0 Box 5654 Pasadena CA 91107 1831 Business Center Dr Duarte CA 91010 allows oil soaking begins invite warps Incidentally have just learned R 1 Mikkelson producing nitrate dope red yellow blue orange black white distil bution Old Timer Models PO Box 913 Westminster CA 92683 last word Dont stink up house just before company comes may understand reference dope Clarence Haught Rt 5 Box 16 CouerdAlene ID 83814 i 213/359-0016 RC Helicopters/Chesney Continued page 33 sponses As someone told few years back might get trouble faster can get out trouble faster too course Heli copter will respond differently pilots capabilities will vary best rule may well fly way comes out box Thought might enjoy knowing few times snows down South photos shows mere snow cant stop dedi cated chopper pilot like W R Hartness Sanford NC Also special tip winter fliers Lloyd Wheelerwatch out rotor blade icingSee next month Dave Chesney 9 Box 621A Greensboro NC 27409 RC Soaring/Pruss Continued page 31 place fastest time around 76-kilometer 472-mi Great Race course race Pat Flinn Greater Detroit Soaring Hiking Society won last year flight 304 miles November MA challenge open AMA chartered clubs further formation may obtained sending stamped self-addressed business envelope address below Good Lift Dan Pruss RR 2 Box 49D Plainfield IL 60544 RC Scale/Wischers Continued page 35 Early morning wind light Brian Allen flew Gossamer Albatross misfortune Wittman Airport day pleasure introduction also met Brians parents source modesty equanimity became apparent Scale race-plane buffs fullsize reproductions Gee Bee Z Travelair Mystery Ship Laird Super Solution along Jimmy Doolittle flew original Laird Bendix Thompson Trophy races Two weeks after convention again Wittman field attended three days World Aerobatic Championships Forty-two men nine women 10 countries included competition about 20 planes use several pilots taking turns flying some planes Pitts 5-1 S-2s common US designs along Christen Eagle Leo Loudenslagers winning Laser 200 German team used Zlin SOL France three CAP 20s CAP 21 ASA 200 CAP 20 fuselage tapered wing place usual semi-elliptical planform aerobatic types ideal Scale projects some already available kit form CAP 20 featured construction article March 1980 issue Model Aviation United States swept first three places both mens womens divisions reader trend toward 1/5-scale practical alternative Giant Scale seems gaining foothold thought letter Louie Scribner contained material general interest Nats chance visit Springfield MAC field Donnelsville OH watched several fellows flying new Old-Timers seven-foot-span range powered 05 60 4-cycle engines impressed quiet engines low rpms floating ability planes occurred build Sport Scale might build Piper 1-3 along same lines would fly slowly smoothly calm air using same 05 60 engine might add Im interested belt drives chain-saw engines Giant Scale Ive already built Sig J-3 turned out rather nicely Im considering scaling Sig plans up 117 times 1/6-scale handle 05 60 engine seems have about power good 40 14-6 7500 rpm Obviously -scale too much 1/5-scale might right would produce following numbers Span 845-in chord 12-in wing thickness 1-5/16-in overall length 52-in area Continued page 112 110 Model Aviation 0 SAFE FLYING IS NO ACCIDENT ~514E NEW FOURMOST PRODUCTS Fuselage Fixture TI. FOURMOST FUSELAGE FIXTURE designed Aof.oftIIy abgn fuselage structures built strings measuring eyeballing Simply slide four centering brack ets track until align firewall tail joint two bulkheads Clamp fuuelsge together lightly rubber bands structure will straight track oonmodoOraota. ap atf. Bomb Release yeurscnst Soteb Its necha nitec tiotple ligheweipht ideal far fly eceeta tbe isis tour plane provided attach sprite latch thread connect throttle roddee servo Corrotios prohiew acm scolded ef nylon end g tewinleet tot UNit werOnt Ip,ce FOURMOST PRODUCTS 503 357-2732 4040 24th Ave Forest Grove OR 97116 990 sq 688 sq ft weight would have 5-to 7lb range 12 17 oz per sq ft would built-up light order fly slowly would much prefer use one-piece wing barely transportable seven feet have attachment mess two panels Other things would include inverted engine glow plug batery dummy cylinders dual aileron servos etc Questions 1 think size right engine 2 What weight wing loading range best type scale 3 have other suggestions about project Some early four-stroke engines problem keeping valve clearances adjusted As result always equal task carrying aloft 7-or 8-lb model understanding materials being used today changed avoid problem memory serves correctly soft rocker antis have seen engines recently being used fly models 8-lb range consistently good results need readjustment valve clearances type flight indicated little no wind 7-lb weight 17 oz per sq ft loading would acceptable real problem would keeping weight down figure could done careful selection materials using lightweight finish covering heavy paint job can really add pounds on-board glow plug battery may weighty luxury could omitted have never seen Piper Cub model one-piece wing could considered scale-like appearance because wind shield such prominent feature full windshield used one-piece wing becomes vulnerable damage one-piece wing may desirable small model because difficulty getting hands inside fuselage fastening would required two-piece construction real advantage one-piece wing use single servo center section pushrods extending ailerons size suggested think two-piece wing preferable especially since mentioned dual servos would employed assume means servo wing suggestion would two wing halves functional struts prototype wings plugged slots fuselage single machine screw fastening half have seen done Pipers past know successful method preserves scale appearance possible consider tipping engine away vertical inverted mounting100 would sufficientto avoid problems starting due drowned glow plug common sight model meets see two-man team holding model inverted get engine started Flipping model over engine running always seems hazardous slight angle tends place wet fuel away plug flooded engine Very likely will using muffler because four-stroke engines inherently quiet Should muffler needed angle mounting helps concealing muffler inside cowl Another solution model Super Cub rather J-3 has full cowl engine can sidemounted cowl weighs bit compensated omission dummy cylinders January 80 column photo Super Cub model Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafleld WI 53018 Laminate Curves/Kragness Continued page 39 Find wood screw sheet metal screw attach strap overrun part wooden form Let strap have -in freedom screw shank under head whatever thick ness laminated piece will need make arrangement put 10-15 pounds pull free end strap clamp form bench vise hang weights strap Make setup before proceeding laminate also cover form edge cellophane tapeor masking tapeto allow separating cured laminate form individual laminate strips should same width form block thickness slightly over-length Balsa should straightgrain quarter-sawed Also can softer stock youd like finished part because adhesive will penetrate partially saturate wood fibersadding strength hardness strips spare two prepared aliphatic resin glue hand Sigbond Titebond etc soak strips water mop excess water away apply glue make up stack Check surfaces coated over voids wanted Get layers aligned well Place stack form end near screw slowly pull strap around form considerable tension coming down progressively glued stack Apply ten sioning arrangement let glue set 24 Continued page 116 112 Model Aviation Tatone Makes Easy Established 1956 Tatone has invented de signed over 300 specialized model airplane ac cessories often imitated never equalled q Watch new itwns Tatone products available leading hobby shops See dealer first convenient R DIRECT Send SOC illustrated price information COD VISA MASTER CHARGE gJ II SD 1
Edition: Model Aviation - 1981/02
Page Numbers: 34, 35, 110, 112
SCALE Bob & Dolly Wischer OSHKOSH again paid annual visit FAA Convention Oslikosh WI during interval between Ottawa World Champion ships Wilmington Nats surprised find prototypes Piel Emeraude Beryl parked near other Also nearby Hiperbipe Bob Underwood modeled Norm Taylors Beryl after seven years hours flying maintains youthful appearance such perfect condition awarded honorable mention custom-built aircraft division have often heard said contestants judges contest Scale models look better prototypes case model could compete full-size plane thin finish model intended weight reductions no longer disguises glue joints wood grain adequately Both planes finished Randolph dope moral story dont skimp finish long life desired reduced weight use lighter materials structure particularly tail section especially gratifying us Scale model ers find winning planes competitions Oshkosh often owned built people have modeling backgrounds addition full-size Beryl Norm Taylor also flies 1/5scale RC model similar Starduster Too Maynard Patty Ingalls won Outstanding Workmanship Award 1980 another example capabilities modelers Reserve Grand Champion Vintage Aircraft Award went modelers Tom Dietrich Frank Evans perfectly restored deHavil land Tiger Moth Hale Wallace has built two Steen Skybolts both have received first place awards Oshkosh Dario Brisighella restored Stinson Station Wagon first-place condition built prize-winning quarterscale model prototype list endless What marvelous place Oshkosh modeler searching Out Scale subjects just too choose Imagine over 1500 show aircraft including 466 custom home-builts 157 antiques 620 classics 141 warbirds place freedom EAA members examine photograph first Sunday convention estimated 7000 planes parked Wittman Airport Most factory-built sure kits also available warbirds collection would satisfy modeler looking different P-Si Sea Fury Corsair AT-6 outstanding external finish appearance No battle-weary derelicts people own the3e expensive toys lavish care attention pride-and-joy planes like weathered appearance little selection endless array polished well-kept aircraft pure delight high points Oshkosh convention daily air show aerobatic military aircraft display proficiencies Scale modelers viewpoint shows very revealing maneuvers can performed various planes Some us have flown models aerobatic types would find maneuvers perform quite con servative compared what can done full-size plane especially regard succession actions follow another rapid order spectacular stunts done vertically angle percent age much higher during routine see model flying best example aerobatic routine World Champion Leo mer u,au uu.t uu O~IISb ~masterfrom Pilot kit Model spans 54 finished William Trutts Bristol Bullet lost wheel dropped out first-place tie because Jim MonoKote RS Perfect paint uses OS Walter holds plane William replaces wheel action took place Sport Scale 25 Photo taken Waukesha Scale Rally event meet hosted West Shore Flying Society Harrisburg PA 34 Model Aviation Frank Zagar really likes SE-5sall three Seen RC Hobbies Waukesha Scale Rally Wisconsin built Top Flite kits powered Enya 458 Loudenslager Laser 200 modified Stephens Acro gave us see five minutes could absorbed remembered Vexy few military planes flown aerobatically Oshkosh FM-2 Wildcat F8F Bearcat modified aerobatics carried out sort things see Scale military models performing spoke pilot has distinction having flown Don Coe saw plans foran FFTipsy Nipper ModelAirplane News decided build itas RC Model weighs 2 lb 2 spans 40 usesan OS Max 10 Rudderandelevatorcontrol piston-engine military fighters some jets informed us prolonged negative-G flight possible unless plane has modified particularly fuel feed mentioned some jet fighters have sort clunk tank such used models will permit inversion about 12 seconds works properly Without engine restart requires time altitude may available noticeable features fullscale aerobatic flight use throttle during descent engine rpm doesnt change greatly exhaust note tells us throttle wide open certainly closed com pletely model aerobatic flight suspect modelers close throttles com pletely because think judges expect AMA FAI rule book RC Scale Flight Judging Guides state throttle should closed top loop Cuban Eight example definitely what see hear watching full-scale aerobatics throttling done prevent over-revving throttle closed completely stall turn Continued page 110 Bob Morrill spent over 2000 hours completethis Kyushu J7W1 Shinden WW II craft 15000 Sig flat-head copper rivets 500 eyeglass-hinge screws emplaced finish applied over 15 coats sanded sealer Model spans 64 weighs 9 lb 2 oz powered K&B 61 Scale 1 Have Barrel Fun FX BULK FUEL 1n55 Gallon Drums Drums Active Flyers Fox Can Keep Flying DUKES FUEL 10% Nltro 55 Gal Drum net $26000 includes Drum FAI FUEL No Nitro 55 Gal Drum net $14500 includes Drum Ship Freight Collect Payment required advance Drums Fuel . Hot Line can Help 501 646-1656 Pint Quart Gallon FOX FUEL o FOX SUPERFUELGood breako in oil rich formula 28% o Pt $305 Ot $505 Gal $1675 o DUKES FUEL Especially blended RIO Sport flying o Pt $340 Ot $560 Gal $1895 MISSILE MIST premium fuel 0 power 25% Nitro o Pt $420 Qt $760 Gal $2590 Fx MFG Co 5305 TOWSON AVE FORT SMITH ARK 72901 February 1981 35 ATTENTION ERS Epoxy Gla. Cowl NOSEN HOSTETLER PICA BALSA USA PLAiT- CONCEPT FLEET SID MORGAN- RCM T CRAFT BYRON/SHEBER PITTS FOLKER D7 BOEING P-26 &F4-B4 GEE BEE MOD Y KRAFT SUPER FLY & SCALE AND OTHERS Send S ASE Complete List T&D FIBERGLASS SPECIALTIES 30925 Bkck Garden City Ml 48135 Phi -313 421 6358 SCALE WHE RADIO CONTROL ROL-UNE 0 _ 0 0 VINTAGESMOOTHGOLDEN AGENEW sizes2YzCONTOURsizes21/iBALLOON 343/"23/43431/a 1334134132/z41/2 11443/i11/4311/443/i34514 11/251/24/z1hz53 1ls6/21451/41s61/2 ELS FREE-FLIGHT SCALE PILOTS CYUNDERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS EROS INTh SEND $1 FOR COMPLETE ILLUSTRATED CATALOG ___________________ DEPT MA PAWNEE ST SAN MARCOS CA 9 INTRODUCING Tile American RJL K6I R/C ENGINE RJL Industries now produces renowned engine formerly manufactured Kraft Systems Inc schnuerle ported 61 cubic inch engine provides easy starting high performance longevity Produced finest materials workmanship quality assurance youll proud have aircraft powered K61 FEATURES INCLUDE Schnuerle Ports Boost Port Double Ball Bearings Forged Alloy Piston & Con Rod Bushed Connecting Rod 0- ring Sealed Back Cover 16 HP 15500 RPM SUGGESTED RETAIL $13995 Muffler Included Send Free Catalog Today R J L INDUSTRIES P0 Box 5654 Pasadena CA 91107 1831 Business Center Dr Duarte CA 91010 allows oil soaking begins invite warps Incidentally have just learned R 1 Mikkelson producing nitrate dope red yellow blue orange black white distil bution Old Timer Models PO Box 913 Westminster CA 92683 last word Dont stink up house just before company comes may understand reference dope Clarence Haught Rt 5 Box 16 CouerdAlene ID 83814 i 213/359-0016 RC Helicopters/Chesney Continued page 33 sponses As someone told few years back might get trouble faster can get out trouble faster too course Heli copter will respond differently pilots capabilities will vary best rule may well fly way comes out box Thought might enjoy knowing few times snows down South photos shows mere snow cant stop dedi cated chopper pilot like W R Hartness Sanford NC Also special tip winter fliers Lloyd Wheelerwatch out rotor blade icingSee next month Dave Chesney 9 Box 621A Greensboro NC 27409 RC Soaring/Pruss Continued page 31 place fastest time around 76-kilometer 472-mi Great Race course race Pat Flinn Greater Detroit Soaring Hiking Society won last year flight 304 miles November MA challenge open AMA chartered clubs further formation may obtained sending stamped self-addressed business envelope address below Good Lift Dan Pruss RR 2 Box 49D Plainfield IL 60544 RC Scale/Wischers Continued page 35 Early morning wind light Brian Allen flew Gossamer Albatross misfortune Wittman Airport day pleasure introduction also met Brians parents source modesty equanimity became apparent Scale race-plane buffs fullsize reproductions Gee Bee Z Travelair Mystery Ship Laird Super Solution along Jimmy Doolittle flew original Laird Bendix Thompson Trophy races Two weeks after convention again Wittman field attended three days World Aerobatic Championships Forty-two men nine women 10 countries included competition about 20 planes use several pilots taking turns flying some planes Pitts 5-1 S-2s common US designs along Christen Eagle Leo Loudenslagers winning Laser 200 German team used Zlin SOL France three CAP 20s CAP 21 ASA 200 CAP 20 fuselage tapered wing place usual semi-elliptical planform aerobatic types ideal Scale projects some already available kit form CAP 20 featured construction article March 1980 issue Model Aviation United States swept first three places both mens womens divisions reader trend toward 1/5-scale practical alternative Giant Scale seems gaining foothold thought letter Louie Scribner contained material general interest Nats chance visit Springfield MAC field Donnelsville OH watched several fellows flying new Old-Timers seven-foot-span range powered 05 60 4-cycle engines impressed quiet engines low rpms floating ability planes occurred build Sport Scale might build Piper 1-3 along same lines would fly slowly smoothly calm air using same 05 60 engine might add Im interested belt drives chain-saw engines Giant Scale Ive already built Sig J-3 turned out rather nicely Im considering scaling Sig plans up 117 times 1/6-scale handle 05 60 engine seems have about power good 40 14-6 7500 rpm Obviously -scale too much 1/5-scale might right would produce following numbers Span 845-in chord 12-in wing thickness 1-5/16-in overall length 52-in area Continued page 112 110 Model Aviation 0 SAFE FLYING IS NO ACCIDENT ~514E NEW FOURMOST PRODUCTS Fuselage Fixture TI. FOURMOST FUSELAGE FIXTURE designed Aof.oftIIy abgn fuselage structures built strings measuring eyeballing Simply slide four centering brack ets track until align firewall tail joint two bulkheads Clamp fuuelsge together lightly rubber bands structure will straight track oonmodoOraota. ap atf. Bomb Release yeurscnst Soteb Its necha nitec tiotple ligheweipht ideal far fly eceeta tbe isis tour plane provided attach sprite latch thread connect throttle roddee servo Corrotios prohiew acm scolded ef nylon end g tewinleet tot UNit werOnt Ip,ce FOURMOST PRODUCTS 503 357-2732 4040 24th Ave Forest Grove OR 97116 990 sq 688 sq ft weight would have 5-to 7lb range 12 17 oz per sq ft would built-up light order fly slowly would much prefer use one-piece wing barely transportable seven feet have attachment mess two panels Other things would include inverted engine glow plug batery dummy cylinders dual aileron servos etc Questions 1 think size right engine 2 What weight wing loading range best type scale 3 have other suggestions about project Some early four-stroke engines problem keeping valve clearances adjusted As result always equal task carrying aloft 7-or 8-lb model understanding materials being used today changed avoid problem memory serves correctly soft rocker antis have seen engines recently being used fly models 8-lb range consistently good results need readjustment valve clearances type flight indicated little no wind 7-lb weight 17 oz per sq ft loading would acceptable real problem would keeping weight down figure could done careful selection materials using lightweight finish covering heavy paint job can really add pounds on-board glow plug battery may weighty luxury could omitted have never seen Piper Cub model one-piece wing could considered scale-like appearance because wind shield such prominent feature full windshield used one-piece wing becomes vulnerable damage one-piece wing may desirable small model because difficulty getting hands inside fuselage fastening would required two-piece construction real advantage one-piece wing use single servo center section pushrods extending ailerons size suggested think two-piece wing preferable especially since mentioned dual servos would employed assume means servo wing suggestion would two wing halves functional struts prototype wings plugged slots fuselage single machine screw fastening half have seen done Pipers past know successful method preserves scale appearance possible consider tipping engine away vertical inverted mounting100 would sufficientto avoid problems starting due drowned glow plug common sight model meets see two-man team holding model inverted get engine started Flipping model over engine running always seems hazardous slight angle tends place wet fuel away plug flooded engine Very likely will using muffler because four-stroke engines inherently quiet Should muffler needed angle mounting helps concealing muffler inside cowl Another solution model Super Cub rather J-3 has full cowl engine can sidemounted cowl weighs bit compensated omission dummy cylinders January 80 column photo Super Cub model Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafleld WI 53018 Laminate Curves/Kragness Continued page 39 Find wood screw sheet metal screw attach strap overrun part wooden form Let strap have -in freedom screw shank under head whatever thick ness laminated piece will need make arrangement put 10-15 pounds pull free end strap clamp form bench vise hang weights strap Make setup before proceeding laminate also cover form edge cellophane tapeor masking tapeto allow separating cured laminate form individual laminate strips should same width form block thickness slightly over-length Balsa should straightgrain quarter-sawed Also can softer stock youd like finished part because adhesive will penetrate partially saturate wood fibersadding strength hardness strips spare two prepared aliphatic resin glue hand Sigbond Titebond etc soak strips water mop excess water away apply glue make up stack Check surfaces coated over voids wanted Get layers aligned well Place stack form end near screw slowly pull strap around form considerable tension coming down progressively glued stack Apply ten sioning arrangement let glue set 24 Continued page 116 112 Model Aviation Tatone Makes Easy Established 1956 Tatone has invented de signed over 300 specialized model airplane ac cessories often imitated never equalled q Watch new itwns Tatone products available leading hobby shops See dealer first convenient R DIRECT Send SOC illustrated price information COD VISA MASTER CHARGE gJ II SD 1
Edition: Model Aviation - 1981/02
Page Numbers: 34, 35, 110, 112
SCALE Bob & Dolly Wischer OSHKOSH again paid annual visit FAA Convention Oslikosh WI during interval between Ottawa World Champion ships Wilmington Nats surprised find prototypes Piel Emeraude Beryl parked near other Also nearby Hiperbipe Bob Underwood modeled Norm Taylors Beryl after seven years hours flying maintains youthful appearance such perfect condition awarded honorable mention custom-built aircraft division have often heard said contestants judges contest Scale models look better prototypes case model could compete full-size plane thin finish model intended weight reductions no longer disguises glue joints wood grain adequately Both planes finished Randolph dope moral story dont skimp finish long life desired reduced weight use lighter materials structure particularly tail section especially gratifying us Scale model ers find winning planes competitions Oshkosh often owned built people have modeling backgrounds addition full-size Beryl Norm Taylor also flies 1/5scale RC model similar Starduster Too Maynard Patty Ingalls won Outstanding Workmanship Award 1980 another example capabilities modelers Reserve Grand Champion Vintage Aircraft Award went modelers Tom Dietrich Frank Evans perfectly restored deHavil land Tiger Moth Hale Wallace has built two Steen Skybolts both have received first place awards Oshkosh Dario Brisighella restored Stinson Station Wagon first-place condition built prize-winning quarterscale model prototype list endless What marvelous place Oshkosh modeler searching Out Scale subjects just too choose Imagine over 1500 show aircraft including 466 custom home-builts 157 antiques 620 classics 141 warbirds place freedom EAA members examine photograph first Sunday convention estimated 7000 planes parked Wittman Airport Most factory-built sure kits also available warbirds collection would satisfy modeler looking different P-Si Sea Fury Corsair AT-6 outstanding external finish appearance No battle-weary derelicts people own the3e expensive toys lavish care attention pride-and-joy planes like weathered appearance little selection endless array polished well-kept aircraft pure delight high points Oshkosh convention daily air show aerobatic military aircraft display proficiencies Scale modelers viewpoint shows very revealing maneuvers can performed various planes Some us have flown models aerobatic types would find maneuvers perform quite con servative compared what can done full-size plane especially regard succession actions follow another rapid order spectacular stunts done vertically angle percent age much higher during routine see model flying best example aerobatic routine World Champion Leo mer u,au uu.t uu O~IISb ~masterfrom Pilot kit Model spans 54 finished William Trutts Bristol Bullet lost wheel dropped out first-place tie because Jim MonoKote RS Perfect paint uses OS Walter holds plane William replaces wheel action took place Sport Scale 25 Photo taken Waukesha Scale Rally event meet hosted West Shore Flying Society Harrisburg PA 34 Model Aviation Frank Zagar really likes SE-5sall three Seen RC Hobbies Waukesha Scale Rally Wisconsin built Top Flite kits powered Enya 458 Loudenslager Laser 200 modified Stephens Acro gave us see five minutes could absorbed remembered Vexy few military planes flown aerobatically Oshkosh FM-2 Wildcat F8F Bearcat modified aerobatics carried out sort things see Scale military models performing spoke pilot has distinction having flown Don Coe saw plans foran FFTipsy Nipper ModelAirplane News decided build itas RC Model weighs 2 lb 2 spans 40 usesan OS Max 10 Rudderandelevatorcontrol piston-engine military fighters some jets informed us prolonged negative-G flight possible unless plane has modified particularly fuel feed mentioned some jet fighters have sort clunk tank such used models will permit inversion about 12 seconds works properly Without engine restart requires time altitude may available noticeable features fullscale aerobatic flight use throttle during descent engine rpm doesnt change greatly exhaust note tells us throttle wide open certainly closed com pletely model aerobatic flight suspect modelers close throttles com pletely because think judges expect AMA FAI rule book RC Scale Flight Judging Guides state throttle should closed top loop Cuban Eight example definitely what see hear watching full-scale aerobatics throttling done prevent over-revving throttle closed completely stall turn Continued page 110 Bob Morrill spent over 2000 hours completethis Kyushu J7W1 Shinden WW II craft 15000 Sig flat-head copper rivets 500 eyeglass-hinge screws emplaced finish applied over 15 coats sanded sealer Model spans 64 weighs 9 lb 2 oz powered K&B 61 Scale 1 Have Barrel Fun FX BULK FUEL 1n55 Gallon Drums Drums Active Flyers Fox Can Keep Flying DUKES FUEL 10% Nltro 55 Gal Drum net $26000 includes Drum FAI FUEL No Nitro 55 Gal Drum net $14500 includes Drum Ship Freight Collect Payment required advance Drums Fuel . Hot Line can Help 501 646-1656 Pint Quart Gallon FOX FUEL o FOX SUPERFUELGood breako in oil rich formula 28% o Pt $305 Ot $505 Gal $1675 o DUKES FUEL Especially blended RIO Sport flying o Pt $340 Ot $560 Gal $1895 MISSILE MIST premium fuel 0 power 25% Nitro o Pt $420 Qt $760 Gal $2590 Fx MFG Co 5305 TOWSON AVE FORT SMITH ARK 72901 February 1981 35 ATTENTION ERS Epoxy Gla. Cowl NOSEN HOSTETLER PICA BALSA USA PLAiT- CONCEPT FLEET SID MORGAN- RCM T CRAFT BYRON/SHEBER PITTS FOLKER D7 BOEING P-26 &F4-B4 GEE BEE MOD Y KRAFT SUPER FLY & SCALE AND OTHERS Send S ASE Complete List T&D FIBERGLASS SPECIALTIES 30925 Bkck Garden City Ml 48135 Phi -313 421 6358 SCALE WHE RADIO CONTROL ROL-UNE 0 _ 0 0 VINTAGESMOOTHGOLDEN AGENEW sizes2YzCONTOURsizes21/iBALLOON 343/"23/43431/a 1334134132/z41/2 11443/i11/4311/443/i34514 11/251/24/z1hz53 1ls6/21451/41s61/2 ELS FREE-FLIGHT SCALE PILOTS CYUNDERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS EROS INTh SEND $1 FOR COMPLETE ILLUSTRATED CATALOG ___________________ DEPT MA PAWNEE ST SAN MARCOS CA 9 INTRODUCING Tile American RJL K6I R/C ENGINE RJL Industries now produces renowned engine formerly manufactured Kraft Systems Inc schnuerle ported 61 cubic inch engine provides easy starting high performance longevity Produced finest materials workmanship quality assurance youll proud have aircraft powered K61 FEATURES INCLUDE Schnuerle Ports Boost Port Double Ball Bearings Forged Alloy Piston & Con Rod Bushed Connecting Rod 0- ring Sealed Back Cover 16 HP 15500 RPM SUGGESTED RETAIL $13995 Muffler Included Send Free Catalog Today R J L INDUSTRIES P0 Box 5654 Pasadena CA 91107 1831 Business Center Dr Duarte CA 91010 allows oil soaking begins invite warps Incidentally have just learned R 1 Mikkelson producing nitrate dope red yellow blue orange black white distil bution Old Timer Models PO Box 913 Westminster CA 92683 last word Dont stink up house just before company comes may understand reference dope Clarence Haught Rt 5 Box 16 CouerdAlene ID 83814 i 213/359-0016 RC Helicopters/Chesney Continued page 33 sponses As someone told few years back might get trouble faster can get out trouble faster too course Heli copter will respond differently pilots capabilities will vary best rule may well fly way comes out box Thought might enjoy knowing few times snows down South photos shows mere snow cant stop dedi cated chopper pilot like W R Hartness Sanford NC Also special tip winter fliers Lloyd Wheelerwatch out rotor blade icingSee next month Dave Chesney 9 Box 621A Greensboro NC 27409 RC Soaring/Pruss Continued page 31 place fastest time around 76-kilometer 472-mi Great Race course race Pat Flinn Greater Detroit Soaring Hiking Society won last year flight 304 miles November MA challenge open AMA chartered clubs further formation may obtained sending stamped self-addressed business envelope address below Good Lift Dan Pruss RR 2 Box 49D Plainfield IL 60544 RC Scale/Wischers Continued page 35 Early morning wind light Brian Allen flew Gossamer Albatross misfortune Wittman Airport day pleasure introduction also met Brians parents source modesty equanimity became apparent Scale race-plane buffs fullsize reproductions Gee Bee Z Travelair Mystery Ship Laird Super Solution along Jimmy Doolittle flew original Laird Bendix Thompson Trophy races Two weeks after convention again Wittman field attended three days World Aerobatic Championships Forty-two men nine women 10 countries included competition about 20 planes use several pilots taking turns flying some planes Pitts 5-1 S-2s common US designs along Christen Eagle Leo Loudenslagers winning Laser 200 German team used Zlin SOL France three CAP 20s CAP 21 ASA 200 CAP 20 fuselage tapered wing place usual semi-elliptical planform aerobatic types ideal Scale projects some already available kit form CAP 20 featured construction article March 1980 issue Model Aviation United States swept first three places both mens womens divisions reader trend toward 1/5-scale practical alternative Giant Scale seems gaining foothold thought letter Louie Scribner contained material general interest Nats chance visit Springfield MAC field Donnelsville OH watched several fellows flying new Old-Timers seven-foot-span range powered 05 60 4-cycle engines impressed quiet engines low rpms floating ability planes occurred build Sport Scale might build Piper 1-3 along same lines would fly slowly smoothly calm air using same 05 60 engine might add Im interested belt drives chain-saw engines Giant Scale Ive already built Sig J-3 turned out rather nicely Im considering scaling Sig plans up 117 times 1/6-scale handle 05 60 engine seems have about power good 40 14-6 7500 rpm Obviously -scale too much 1/5-scale might right would produce following numbers Span 845-in chord 12-in wing thickness 1-5/16-in overall length 52-in area Continued page 112 110 Model Aviation 0 SAFE FLYING IS NO ACCIDENT ~514E NEW FOURMOST PRODUCTS Fuselage Fixture TI. FOURMOST FUSELAGE FIXTURE designed Aof.oftIIy abgn fuselage structures built strings measuring eyeballing Simply slide four centering brack ets track until align firewall tail joint two bulkheads Clamp fuuelsge together lightly rubber bands structure will straight track oonmodoOraota. ap atf. Bomb Release yeurscnst Soteb Its necha nitec tiotple ligheweipht ideal far fly eceeta tbe isis tour plane provided attach sprite latch thread connect throttle roddee servo Corrotios prohiew acm scolded ef nylon end g tewinleet tot UNit werOnt Ip,ce FOURMOST PRODUCTS 503 357-2732 4040 24th Ave Forest Grove OR 97116 990 sq 688 sq ft weight would have 5-to 7lb range 12 17 oz per sq ft would built-up light order fly slowly would much prefer use one-piece wing barely transportable seven feet have attachment mess two panels Other things would include inverted engine glow plug batery dummy cylinders dual aileron servos etc Questions 1 think size right engine 2 What weight wing loading range best type scale 3 have other suggestions about project Some early four-stroke engines problem keeping valve clearances adjusted As result always equal task carrying aloft 7-or 8-lb model understanding materials being used today changed avoid problem memory serves correctly soft rocker antis have seen engines recently being used fly models 8-lb range consistently good results need readjustment valve clearances type flight indicated little no wind 7-lb weight 17 oz per sq ft loading would acceptable real problem would keeping weight down figure could done careful selection materials using lightweight finish covering heavy paint job can really add pounds on-board glow plug battery may weighty luxury could omitted have never seen Piper Cub model one-piece wing could considered scale-like appearance because wind shield such prominent feature full windshield used one-piece wing becomes vulnerable damage one-piece wing may desirable small model because difficulty getting hands inside fuselage fastening would required two-piece construction real advantage one-piece wing use single servo center section pushrods extending ailerons size suggested think two-piece wing preferable especially since mentioned dual servos would employed assume means servo wing suggestion would two wing halves functional struts prototype wings plugged slots fuselage single machine screw fastening half have seen done Pipers past know successful method preserves scale appearance possible consider tipping engine away vertical inverted mounting100 would sufficientto avoid problems starting due drowned glow plug common sight model meets see two-man team holding model inverted get engine started Flipping model over engine running always seems hazardous slight angle tends place wet fuel away plug flooded engine Very likely will using muffler because four-stroke engines inherently quiet Should muffler needed angle mounting helps concealing muffler inside cowl Another solution model Super Cub rather J-3 has full cowl engine can sidemounted cowl weighs bit compensated omission dummy cylinders January 80 column photo Super Cub model Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafleld WI 53018 Laminate Curves/Kragness Continued page 39 Find wood screw sheet metal screw attach strap overrun part wooden form Let strap have -in freedom screw shank under head whatever thick ness laminated piece will need make arrangement put 10-15 pounds pull free end strap clamp form bench vise hang weights strap Make setup before proceeding laminate also cover form edge cellophane tapeor masking tapeto allow separating cured laminate form individual laminate strips should same width form block thickness slightly over-length Balsa should straightgrain quarter-sawed Also can softer stock youd like finished part because adhesive will penetrate partially saturate wood fibersadding strength hardness strips spare two prepared aliphatic resin glue hand Sigbond Titebond etc soak strips water mop excess water away apply glue make up stack Check surfaces coated over voids wanted Get layers aligned well Place stack form end near screw slowly pull strap around form considerable tension coming down progressively glued stack Apply ten sioning arrangement let glue set 24 Continued page 116 112 Model Aviation Tatone Makes Easy Established 1956 Tatone has invented de signed over 300 specialized model airplane ac cessories often imitated never equalled q Watch new itwns Tatone products available leading hobby shops See dealer first convenient R DIRECT Send SOC illustrated price information COD VISA MASTER CHARGE gJ II SD 1
Edition: Model Aviation - 1981/02
Page Numbers: 34, 35, 110, 112
SCALE Bob & Dolly Wischer OSHKOSH again paid annual visit FAA Convention Oslikosh WI during interval between Ottawa World Champion ships Wilmington Nats surprised find prototypes Piel Emeraude Beryl parked near other Also nearby Hiperbipe Bob Underwood modeled Norm Taylors Beryl after seven years hours flying maintains youthful appearance such perfect condition awarded honorable mention custom-built aircraft division have often heard said contestants judges contest Scale models look better prototypes case model could compete full-size plane thin finish model intended weight reductions no longer disguises glue joints wood grain adequately Both planes finished Randolph dope moral story dont skimp finish long life desired reduced weight use lighter materials structure particularly tail section especially gratifying us Scale model ers find winning planes competitions Oshkosh often owned built people have modeling backgrounds addition full-size Beryl Norm Taylor also flies 1/5scale RC model similar Starduster Too Maynard Patty Ingalls won Outstanding Workmanship Award 1980 another example capabilities modelers Reserve Grand Champion Vintage Aircraft Award went modelers Tom Dietrich Frank Evans perfectly restored deHavil land Tiger Moth Hale Wallace has built two Steen Skybolts both have received first place awards Oshkosh Dario Brisighella restored Stinson Station Wagon first-place condition built prize-winning quarterscale model prototype list endless What marvelous place Oshkosh modeler searching Out Scale subjects just too choose Imagine over 1500 show aircraft including 466 custom home-builts 157 antiques 620 classics 141 warbirds place freedom EAA members examine photograph first Sunday convention estimated 7000 planes parked Wittman Airport Most factory-built sure kits also available warbirds collection would satisfy modeler looking different P-Si Sea Fury Corsair AT-6 outstanding external finish appearance No battle-weary derelicts people own the3e expensive toys lavish care attention pride-and-joy planes like weathered appearance little selection endless array polished well-kept aircraft pure delight high points Oshkosh convention daily air show aerobatic military aircraft display proficiencies Scale modelers viewpoint shows very revealing maneuvers can performed various planes Some us have flown models aerobatic types would find maneuvers perform quite con servative compared what can done full-size plane especially regard succession actions follow another rapid order spectacular stunts done vertically angle percent age much higher during routine see model flying best example aerobatic routine World Champion Leo mer u,au uu.t uu O~IISb ~masterfrom Pilot kit Model spans 54 finished William Trutts Bristol Bullet lost wheel dropped out first-place tie because Jim MonoKote RS Perfect paint uses OS Walter holds plane William replaces wheel action took place Sport Scale 25 Photo taken Waukesha Scale Rally event meet hosted West Shore Flying Society Harrisburg PA 34 Model Aviation Frank Zagar really likes SE-5sall three Seen RC Hobbies Waukesha Scale Rally Wisconsin built Top Flite kits powered Enya 458 Loudenslager Laser 200 modified Stephens Acro gave us see five minutes could absorbed remembered Vexy few military planes flown aerobatically Oshkosh FM-2 Wildcat F8F Bearcat modified aerobatics carried out sort things see Scale military models performing spoke pilot has distinction having flown Don Coe saw plans foran FFTipsy Nipper ModelAirplane News decided build itas RC Model weighs 2 lb 2 spans 40 usesan OS Max 10 Rudderandelevatorcontrol piston-engine military fighters some jets informed us prolonged negative-G flight possible unless plane has modified particularly fuel feed mentioned some jet fighters have sort clunk tank such used models will permit inversion about 12 seconds works properly Without engine restart requires time altitude may available noticeable features fullscale aerobatic flight use throttle during descent engine rpm doesnt change greatly exhaust note tells us throttle wide open certainly closed com pletely model aerobatic flight suspect modelers close throttles com pletely because think judges expect AMA FAI rule book RC Scale Flight Judging Guides state throttle should closed top loop Cuban Eight example definitely what see hear watching full-scale aerobatics throttling done prevent over-revving throttle closed completely stall turn Continued page 110 Bob Morrill spent over 2000 hours completethis Kyushu J7W1 Shinden WW II craft 15000 Sig flat-head copper rivets 500 eyeglass-hinge screws emplaced finish applied over 15 coats sanded sealer Model spans 64 weighs 9 lb 2 oz powered K&B 61 Scale 1 Have Barrel Fun FX BULK FUEL 1n55 Gallon Drums Drums Active Flyers Fox Can Keep Flying DUKES FUEL 10% Nltro 55 Gal Drum net $26000 includes Drum FAI FUEL No Nitro 55 Gal Drum net $14500 includes Drum Ship Freight Collect Payment required advance Drums Fuel . Hot Line can Help 501 646-1656 Pint Quart Gallon FOX FUEL o FOX SUPERFUELGood breako in oil rich formula 28% o Pt $305 Ot $505 Gal $1675 o DUKES FUEL Especially blended RIO Sport flying o Pt $340 Ot $560 Gal $1895 MISSILE MIST premium fuel 0 power 25% Nitro o Pt $420 Qt $760 Gal $2590 Fx MFG Co 5305 TOWSON AVE FORT SMITH ARK 72901 February 1981 35 ATTENTION ERS Epoxy Gla. Cowl NOSEN HOSTETLER PICA BALSA USA PLAiT- CONCEPT FLEET SID MORGAN- RCM T CRAFT BYRON/SHEBER PITTS FOLKER D7 BOEING P-26 &F4-B4 GEE BEE MOD Y KRAFT SUPER FLY & SCALE AND OTHERS Send S ASE Complete List T&D FIBERGLASS SPECIALTIES 30925 Bkck Garden City Ml 48135 Phi -313 421 6358 SCALE WHE RADIO CONTROL ROL-UNE 0 _ 0 0 VINTAGESMOOTHGOLDEN AGENEW sizes2YzCONTOURsizes21/iBALLOON 343/"23/43431/a 1334134132/z41/2 11443/i11/4311/443/i34514 11/251/24/z1hz53 1ls6/21451/41s61/2 ELS FREE-FLIGHT SCALE PILOTS CYUNDERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS EROS INTh SEND $1 FOR COMPLETE ILLUSTRATED CATALOG ___________________ DEPT MA PAWNEE ST SAN MARCOS CA 9 INTRODUCING Tile American RJL K6I R/C ENGINE RJL Industries now produces renowned engine formerly manufactured Kraft Systems Inc schnuerle ported 61 cubic inch engine provides easy starting high performance longevity Produced finest materials workmanship quality assurance youll proud have aircraft powered K61 FEATURES INCLUDE Schnuerle Ports Boost Port Double Ball Bearings Forged Alloy Piston & Con Rod Bushed Connecting Rod 0- ring Sealed Back Cover 16 HP 15500 RPM SUGGESTED RETAIL $13995 Muffler Included Send Free Catalog Today R J L INDUSTRIES P0 Box 5654 Pasadena CA 91107 1831 Business Center Dr Duarte CA 91010 allows oil soaking begins invite warps Incidentally have just learned R 1 Mikkelson producing nitrate dope red yellow blue orange black white distil bution Old Timer Models PO Box 913 Westminster CA 92683 last word Dont stink up house just before company comes may understand reference dope Clarence Haught Rt 5 Box 16 CouerdAlene ID 83814 i 213/359-0016 RC Helicopters/Chesney Continued page 33 sponses As someone told few years back might get trouble faster can get out trouble faster too course Heli copter will respond differently pilots capabilities will vary best rule may well fly way comes out box Thought might enjoy knowing few times snows down South photos shows mere snow cant stop dedi cated chopper pilot like W R Hartness Sanford NC Also special tip winter fliers Lloyd Wheelerwatch out rotor blade icingSee next month Dave Chesney 9 Box 621A Greensboro NC 27409 RC Soaring/Pruss Continued page 31 place fastest time around 76-kilometer 472-mi Great Race course race Pat Flinn Greater Detroit Soaring Hiking Society won last year flight 304 miles November MA challenge open AMA chartered clubs further formation may obtained sending stamped self-addressed business envelope address below Good Lift Dan Pruss RR 2 Box 49D Plainfield IL 60544 RC Scale/Wischers Continued page 35 Early morning wind light Brian Allen flew Gossamer Albatross misfortune Wittman Airport day pleasure introduction also met Brians parents source modesty equanimity became apparent Scale race-plane buffs fullsize reproductions Gee Bee Z Travelair Mystery Ship Laird Super Solution along Jimmy Doolittle flew original Laird Bendix Thompson Trophy races Two weeks after convention again Wittman field attended three days World Aerobatic Championships Forty-two men nine women 10 countries included competition about 20 planes use several pilots taking turns flying some planes Pitts 5-1 S-2s common US designs along Christen Eagle Leo Loudenslagers winning Laser 200 German team used Zlin SOL France three CAP 20s CAP 21 ASA 200 CAP 20 fuselage tapered wing place usual semi-elliptical planform aerobatic types ideal Scale projects some already available kit form CAP 20 featured construction article March 1980 issue Model Aviation United States swept first three places both mens womens divisions reader trend toward 1/5-scale practical alternative Giant Scale seems gaining foothold thought letter Louie Scribner contained material general interest Nats chance visit Springfield MAC field Donnelsville OH watched several fellows flying new Old-Timers seven-foot-span range powered 05 60 4-cycle engines impressed quiet engines low rpms floating ability planes occurred build Sport Scale might build Piper 1-3 along same lines would fly slowly smoothly calm air using same 05 60 engine might add Im interested belt drives chain-saw engines Giant Scale Ive already built Sig J-3 turned out rather nicely Im considering scaling Sig plans up 117 times 1/6-scale handle 05 60 engine seems have about power good 40 14-6 7500 rpm Obviously -scale too much 1/5-scale might right would produce following numbers Span 845-in chord 12-in wing thickness 1-5/16-in overall length 52-in area Continued page 112 110 Model Aviation 0 SAFE FLYING IS NO ACCIDENT ~514E NEW FOURMOST PRODUCTS Fuselage Fixture TI. FOURMOST FUSELAGE FIXTURE designed Aof.oftIIy abgn fuselage structures built strings measuring eyeballing Simply slide four centering brack ets track until align firewall tail joint two bulkheads Clamp fuuelsge together lightly rubber bands structure will straight track oonmodoOraota. ap atf. Bomb Release yeurscnst Soteb Its necha nitec tiotple ligheweipht ideal far fly eceeta tbe isis tour plane provided attach sprite latch thread connect throttle roddee servo Corrotios prohiew acm scolded ef nylon end g tewinleet tot UNit werOnt Ip,ce FOURMOST PRODUCTS 503 357-2732 4040 24th Ave Forest Grove OR 97116 990 sq 688 sq ft weight would have 5-to 7lb range 12 17 oz per sq ft would built-up light order fly slowly would much prefer use one-piece wing barely transportable seven feet have attachment mess two panels Other things would include inverted engine glow plug batery dummy cylinders dual aileron servos etc Questions 1 think size right engine 2 What weight wing loading range best type scale 3 have other suggestions about project Some early four-stroke engines problem keeping valve clearances adjusted As result always equal task carrying aloft 7-or 8-lb model understanding materials being used today changed avoid problem memory serves correctly soft rocker antis have seen engines recently being used fly models 8-lb range consistently good results need readjustment valve clearances type flight indicated little no wind 7-lb weight 17 oz per sq ft loading would acceptable real problem would keeping weight down figure could done careful selection materials using lightweight finish covering heavy paint job can really add pounds on-board glow plug battery may weighty luxury could omitted have never seen Piper Cub model one-piece wing could considered scale-like appearance because wind shield such prominent feature full windshield used one-piece wing becomes vulnerable damage one-piece wing may desirable small model because difficulty getting hands inside fuselage fastening would required two-piece construction real advantage one-piece wing use single servo center section pushrods extending ailerons size suggested think two-piece wing preferable especially since mentioned dual servos would employed assume means servo wing suggestion would two wing halves functional struts prototype wings plugged slots fuselage single machine screw fastening half have seen done Pipers past know successful method preserves scale appearance possible consider tipping engine away vertical inverted mounting100 would sufficientto avoid problems starting due drowned glow plug common sight model meets see two-man team holding model inverted get engine started Flipping model over engine running always seems hazardous slight angle tends place wet fuel away plug flooded engine Very likely will using muffler because four-stroke engines inherently quiet Should muffler needed angle mounting helps concealing muffler inside cowl Another solution model Super Cub rather J-3 has full cowl engine can sidemounted cowl weighs bit compensated omission dummy cylinders January 80 column photo Super Cub model Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafleld WI 53018 Laminate Curves/Kragness Continued page 39 Find wood screw sheet metal screw attach strap overrun part wooden form Let strap have -in freedom screw shank under head whatever thick ness laminated piece will need make arrangement put 10-15 pounds pull free end strap clamp form bench vise hang weights strap Make setup before proceeding laminate also cover form edge cellophane tapeor masking tapeto allow separating cured laminate form individual laminate strips should same width form block thickness slightly over-length Balsa should straightgrain quarter-sawed Also can softer stock youd like finished part because adhesive will penetrate partially saturate wood fibersadding strength hardness strips spare two prepared aliphatic resin glue hand Sigbond Titebond etc soak strips water mop excess water away apply glue make up stack Check surfaces coated over voids wanted Get layers aligned well Place stack form end near screw slowly pull strap around form considerable tension coming down progressively glued stack Apply ten sioning arrangement let glue set 24 Continued page 116 112 Model Aviation Tatone Makes Easy Established 1956 Tatone has invented de signed over 300 specialized model airplane ac cessories often imitated never equalled q Watch new itwns Tatone products available leading hobby shops See dealer first convenient R DIRECT Send SOC illustrated price information COD VISA MASTER CHARGE gJ II SD 1