I Aerobahcs El Wynn Paul AFTER YEARS years specula tion stunt fliers now may have method try retractable landing gears will dependable enough top level competi tion Free fighter stunt flier kit manu facturer all-around toy airplane freak Fast Richard Mathis writes say has successfully used Seelig freeflight timer activate retracts 35engine stunt plane has used Adjusto Jig RC gears hooked up bellcrank bellcrank activated springs timer timer pulls gears up about 10 seconds after helper re leases catch timer lowers gears about 20 seconds before engine cut off Seelig timer German device noted its reliability timer can perform four separate functions Dick stated system added about three total ounces old airplane would about e less plane designed ground up retracts also says dyed wool stunt flier trust timer will take great faith Seelig timers famous being reliable about performance Dick states plane definitely handles better less Dutch roll defined Dick slight rolling some yawing thrown caused heavy wing tips and/or wide landing gear and/or wheel pants act forward fins better penetration better tracking grooving better inside corners says does go faster wind wind-up situations like three inside loops also thinks plane looks lot better air something will have given some time during next summers cam paign stunt trail building new Chizler around HP 40 re tracts summer Cost timer about $1750 basic retracts about $1000 Next remember seeing old magazine about guy named named Walker control line air plane did rolls PAMPA Classes Try PAMPA category system summer contest Its too late arrange use PAMPA category system separate fliers four different flying classes precision aerobatics contest using either voluntary placing using latest guide stunt rankings Stunt News novice beginner termediate fliers can fly against others similar abilities Have contest director add contest flyer brochure statement contest will have Precision Aero baticsfour PAMPA classes con test management leary going way try three PAMPA classes requires same number trophies having J 5 0 type contest using three PAMPA classes should set up either Beginner Intermediate Advanced-Expert combined try Beginner-Intermediate combined Ad vanced Expert Remember breakdown classes according what competitors aver age scores according AMA scoring points PAMPA Beginner300 under average PAMPA Interme mediate301-399 PAMPA Advanced 400-499 PAMPA Expert500 over now approximately 350 stunt fliers have ranked placed Richard Byron Omaha Nebraska keeps statistics PAMPA stunt rankings still people have chance fly PAMPA cat egories However major con tests around country have tried category system once results excellent participation fun better flying little paper work Al needs parts FAI World Team member Al Rabe Irving Texas sends out ur gent plea anyone may have rare Aloise-ST 51 engines put out last year Al needs crankshafts will gladly rebuild engine back ST 46 configura tion no cost plans use 51-size engine World Champion ship flying summer England has engine needs least spare engine crankshaft get through summer usual 500 flights Write call collect Al 1904 Valley 36 Model Aviation Getting together Edwar Schwerkolts ductedfan version Miller JM-2 has 30-in span foam wing weighs 4 lbs its Enya 35 fuselage profile Photo Wynn Paul Continued page 94 Clean looking original Jim Coil called Shoreman Max 35 engine Wynn Paul pic Knobadjustable stunt handle used Gene Martine made aluminum wood Paul pic Rutherford May 1977 MA maybe Slow form Rich Brashers Rotation Station kit-type plane might start Nemesis Voodoo add longer motor mounts make 5-in minimum leading edge thrust washer remember no prop extensions extra thick thrust washers allowed boom-type body can made out i/i balsa capped 3/16 spruce bass top bottom get plane balance properly might make extra long body first attempt cut length once proper balance achieved guys have used flaps worth try especially use mylar binges since could add subtract flaps ease Probably 30 flap movement enough coupled 15 elevator plane doesnt turn tightly enough 15 elevator too nose-heavy wing loading too high youre mood building original Fast Combat designs might modify Nemesis Voodoo Add 7-in monoboom 3 12 stabilator recess engine far possible probably can get away oo since bladder tube will reinforce leading edge its hard get engine very far back plane Neme sis construction Voodoo kits come very heavy leading edges perfor mance boost might replace commercial variety selected lightness Make some giant wing tips out 4-in wide wood sure read articles airfoils because will confuse mystery poor needle setting may solved perform following test Screw pressure fitting backplate make sure hole goes through seal up exhaust port venturi front bearing want make engine waterproof because will dunk soapy water use syringe put couple pounds pressure inside case Air escaping past backplate gasket through bad casting may give hint its tempermental ways Pull tape/baggies/rubberbands off front engine see much air leaks out past crank looks like Lawrence Welks bubble machine inside motor might think about using grav ity feed future remedy leak backplate try lapping case re moving burrs second gasket works too little leakage out front normal bubbles come out some other place case try coating epoxy 2-ounce cloth must use metal bellcranks flexible leadouts try method bushing suggested Mike Hoffelt Use heat shrink tubing drill holes snug fit Next grind out side bell shape avoid sharp corners tub ing inserted hot conical object used flair tubing both sides results nice bushing wont fall wear out Nylon works too requires heat didnt think Id make way through saying something about FAI did Mention made FAJ Gazette racing speed fliers bible about recent drop Rossi qual ity Rossi 15 still champ Ive noticed several latest engines have dogs compared engines Ive purchased years ago Replacing cranks two seemed help though could detect nary crack bend originals drop quality blamed artificial limit over-the-counter cost engine approximately $60 meet Quarter Midget require ments Apparently engine needs sell nearer $90 separate engine parts priced accordingly Something give day Rossi may join ranks other well-known engines really storm replace crank super trick item bearings new head re fit moving parts Special T-shirts atailable Debi Imboff 524 Sinclair NE Grand Rapids MI 49503 can first fly ing site have shirt bodly pro claims Combact Fliers Get Tail Price $495 shirt 75 postage handling plus $100 extra name pocket up 10 letters send Debi check $670 sure clude name address size shirt desired Charlie Johnson 3716 Ingraham St San Diego CA 92109 CL Aerobatics/Paul continued page 36 Oaks Irving Texas 75060 tel 214 254 5096 Foam Wings. two three used have Bob Hunt Arnold Stott foam wing supplies Arnold retired moved Texas havent heard him since Bob announced typewritten letter writer dated December 27 1977 discon tinue foam wings because material shortages namely balsa John T Poynter Kirk Mullinnix Cypress California announced enter ing foam wing business will call themselves J K Custom Foam Wings have received wings appears competitive wing foam cutting good /8-in spar covering good would prefer slightly thicker trailing edge have always accused building planes could withstand Pappy Boyingtons landings wing pretty light 135 grams left 125 right plan produce four 35-size wings Genesis Nobler Gieseke Nobler Stiletto three 46-size wings Genesis Shark Stiletto 46 Half-A wing Cost core will $1500 postpaid core covered balsa spar $3600 postpaid core covered balsa spar leading edge $3900 postpaid Half-A wing will go $1850 covered balsa postpaid will $500 template 94 Model Aviation 4 NLY KITS OF WORLD CLASSIC AIRCRAFT FROM FLYLINE A99AIs9jpgb3jf LU TON Minor 9W50 Sd 031189921 ignI gi9g9 Pg 53012 530 flg i2192999.S.32295 K 55 259 29555 p530 big 2921 1999 ig29g9 high) gAol 92593025 Send 254 catalog See yourdealer oil FLYLINEs classic kits NOW FLYLINE MODELS INC 9092 593 2030 HEINKEL HelOOD 9505*LS2530 Afl29 pgs9g553052 552555 5i2299952259315.-525 925030 9 925322 sd 330 9Ol939fl8392g5522 65 OVER 54808 8 CA OGE SCALE ORA,S~ no ___1j 8028 SON A TECH 48500 M KENZ E HWYV DA OR 9 488 RCPlanes Cars BoatsCL FF HOAFX TYCO PLASTICS TRAINS Complete Hobby Store send 50 new 1978 catalog HOBBIES 507 WMaple Ave Vienna Va 22180 ARTICLES WANTED Have design youd like have pub lished topic youd like write about tell editor about idea may worth money WINNERS DU-BRO KWIK-LINK tried true 141 3/16 Wspring steel Kwi k-Link Ideal control linkage No 1092each 75c DUBRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084 charge wings listed above Stan dard price further cores templates will charged root tip templates ood must sent J K address K Custom Foam wings 10261 Janice Lynn Cypress CA 90630 tel 213 596 9053 714995 3253 last part foam wing tale tail talking Bob Hunt phone January 31 1978 said would get back business foam wings wood becomes available tends produce wings wood can used will retain high quality desires times short wood supply will supply foam cores glue plus detailed instruction booklet will tell apply skins foam Ac cording Bob balsa wood supply time low situation doesnt look get brighter information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 Dont Fly Control Line Models Near Power Lines CL Racing/Lee continued page 37 change would circles racing will simpler set up since smaller Goodyear circles would eliminated Another item Ive thinking about concerns new engine rule Slow Rat As aware now new rule states engine has have pro duced original manufacturer configuration trying use Some parts excepted course major parts must produced doesnt prohibit modification ever could take engine modify its parts wasnt 35 start cant make out history rule interesting original proposal made back 1974 Slow Rat included some engine restrictions cally non Schnuerle production engines proposal published Model viation loud cries anguish So put cross proposal against own rule proposal have restrictions other size CLCB snapped up result got rules knew last two years During winter 1975-76 new rules favorably voted upon several racers began build up special engines specifically Slow Rat gen eral de-bored de-stroked Schnuerle 40s ran well enough quickly dominate event taking out fun category making serious racing event super trick engines generally available public might recall some comments made about Slow Rat Dayton Nats finals consisted trick homebuilts pre-production prototypes except lone Fox rear-exhaust 36 As result first years competition rules several changes sug gested some individuals combined Combat/Racing/Carrier Ad visory Committees proposal attempt get uniform set engine rules across three so-called slow events Slow Rat Profile Carrier Slow Combat rule proposal finally passed Slow Rat now law net effect rule eliminate lot very good competitive fliers causing much bad feeling has helped event will hurt am sorry rule ever passed CLCB cannot understand individual CLCB would vote anything straight ticket across three events proposed would rule OK event another Maybe case well vote other guys event fly Im sure well never know individual voted way did Slow Rat fliers will suffering because couple years know least area will ignore rule wont advocate action since rule will followed Nats hard compete local levels under set rules have make serious adjustments order fly Nats still pos sible solution Another solution might little long ranged fly two classes Slow Rat AMA specifications another whatever special rules might popular area proposed during last rules cycle CLCB ruled against area going fly AMA Slow Rat same event engine restrictions plain bearing no Schnuerle production engine front intake hope putting little fun back event lot competitors just dont want com pete $100 engines 120-mph speeds Slow Rat Engines solution engine rule above offered Paul Tune Nashville area Paul took time put effort build up de-bored Schnuerle4o 35 Paul started OS Max 40 put together better run ning set-ups around course new rule disadvantage So Paul did obvious thing got OS Max build engine him Through World Engines OS Max engine Paul developed will available commer cially first April price will competitive can contact Paul Box 706 Franklin TN 37964 Another engine quite competitive Slow Rat KB 58 has market since last spring engine ABC set-up front-rotor induc tion front-rotor style cer tainly popular configuration people would prefer run engine rear intake possible As turns out KB historically has built engines common dimen sions parts interchangeability standard building several variations same basic design sev eral different displacements 65-58May1978 95 DU-BRO PLATED BRASS DURA COLLARS ENOUGH STOCK SO THAT THREADS WILL NOT STRIP CAN BE RE-WORKED FOR OTHER USES LIKE HARDENED STEEL NICE IMPROVEMENT THAT HAS ALWAYS BEEN THERE STILL AVAILABLE IN SETS OF 4 COMPLETE WITH ALLEN WRENCH FOR MODELERS WHO DEMAND ONLY THE VERY BEST WHY PAY MORE AND GET
Edition: Model Aviation - 1978/05
Page Numbers: 36, 94, 95
I Aerobahcs El Wynn Paul AFTER YEARS years specula tion stunt fliers now may have method try retractable landing gears will dependable enough top level competi tion Free fighter stunt flier kit manu facturer all-around toy airplane freak Fast Richard Mathis writes say has successfully used Seelig freeflight timer activate retracts 35engine stunt plane has used Adjusto Jig RC gears hooked up bellcrank bellcrank activated springs timer timer pulls gears up about 10 seconds after helper re leases catch timer lowers gears about 20 seconds before engine cut off Seelig timer German device noted its reliability timer can perform four separate functions Dick stated system added about three total ounces old airplane would about e less plane designed ground up retracts also says dyed wool stunt flier trust timer will take great faith Seelig timers famous being reliable about performance Dick states plane definitely handles better less Dutch roll defined Dick slight rolling some yawing thrown caused heavy wing tips and/or wide landing gear and/or wheel pants act forward fins better penetration better tracking grooving better inside corners says does go faster wind wind-up situations like three inside loops also thinks plane looks lot better air something will have given some time during next summers cam paign stunt trail building new Chizler around HP 40 re tracts summer Cost timer about $1750 basic retracts about $1000 Next remember seeing old magazine about guy named named Walker control line air plane did rolls PAMPA Classes Try PAMPA category system summer contest Its too late arrange use PAMPA category system separate fliers four different flying classes precision aerobatics contest using either voluntary placing using latest guide stunt rankings Stunt News novice beginner termediate fliers can fly against others similar abilities Have contest director add contest flyer brochure statement contest will have Precision Aero baticsfour PAMPA classes con test management leary going way try three PAMPA classes requires same number trophies having J 5 0 type contest using three PAMPA classes should set up either Beginner Intermediate Advanced-Expert combined try Beginner-Intermediate combined Ad vanced Expert Remember breakdown classes according what competitors aver age scores according AMA scoring points PAMPA Beginner300 under average PAMPA Interme mediate301-399 PAMPA Advanced 400-499 PAMPA Expert500 over now approximately 350 stunt fliers have ranked placed Richard Byron Omaha Nebraska keeps statistics PAMPA stunt rankings still people have chance fly PAMPA cat egories However major con tests around country have tried category system once results excellent participation fun better flying little paper work Al needs parts FAI World Team member Al Rabe Irving Texas sends out ur gent plea anyone may have rare Aloise-ST 51 engines put out last year Al needs crankshafts will gladly rebuild engine back ST 46 configura tion no cost plans use 51-size engine World Champion ship flying summer England has engine needs least spare engine crankshaft get through summer usual 500 flights Write call collect Al 1904 Valley 36 Model Aviation Getting together Edwar Schwerkolts ductedfan version Miller JM-2 has 30-in span foam wing weighs 4 lbs its Enya 35 fuselage profile Photo Wynn Paul Continued page 94 Clean looking original Jim Coil called Shoreman Max 35 engine Wynn Paul pic Knobadjustable stunt handle used Gene Martine made aluminum wood Paul pic Rutherford May 1977 MA maybe Slow form Rich Brashers Rotation Station kit-type plane might start Nemesis Voodoo add longer motor mounts make 5-in minimum leading edge thrust washer remember no prop extensions extra thick thrust washers allowed boom-type body can made out i/i balsa capped 3/16 spruce bass top bottom get plane balance properly might make extra long body first attempt cut length once proper balance achieved guys have used flaps worth try especially use mylar binges since could add subtract flaps ease Probably 30 flap movement enough coupled 15 elevator plane doesnt turn tightly enough 15 elevator too nose-heavy wing loading too high youre mood building original Fast Combat designs might modify Nemesis Voodoo Add 7-in monoboom 3 12 stabilator recess engine far possible probably can get away oo since bladder tube will reinforce leading edge its hard get engine very far back plane Neme sis construction Voodoo kits come very heavy leading edges perfor mance boost might replace commercial variety selected lightness Make some giant wing tips out 4-in wide wood sure read articles airfoils because will confuse mystery poor needle setting may solved perform following test Screw pressure fitting backplate make sure hole goes through seal up exhaust port venturi front bearing want make engine waterproof because will dunk soapy water use syringe put couple pounds pressure inside case Air escaping past backplate gasket through bad casting may give hint its tempermental ways Pull tape/baggies/rubberbands off front engine see much air leaks out past crank looks like Lawrence Welks bubble machine inside motor might think about using grav ity feed future remedy leak backplate try lapping case re moving burrs second gasket works too little leakage out front normal bubbles come out some other place case try coating epoxy 2-ounce cloth must use metal bellcranks flexible leadouts try method bushing suggested Mike Hoffelt Use heat shrink tubing drill holes snug fit Next grind out side bell shape avoid sharp corners tub ing inserted hot conical object used flair tubing both sides results nice bushing wont fall wear out Nylon works too requires heat didnt think Id make way through saying something about FAI did Mention made FAJ Gazette racing speed fliers bible about recent drop Rossi qual ity Rossi 15 still champ Ive noticed several latest engines have dogs compared engines Ive purchased years ago Replacing cranks two seemed help though could detect nary crack bend originals drop quality blamed artificial limit over-the-counter cost engine approximately $60 meet Quarter Midget require ments Apparently engine needs sell nearer $90 separate engine parts priced accordingly Something give day Rossi may join ranks other well-known engines really storm replace crank super trick item bearings new head re fit moving parts Special T-shirts atailable Debi Imboff 524 Sinclair NE Grand Rapids MI 49503 can first fly ing site have shirt bodly pro claims Combact Fliers Get Tail Price $495 shirt 75 postage handling plus $100 extra name pocket up 10 letters send Debi check $670 sure clude name address size shirt desired Charlie Johnson 3716 Ingraham St San Diego CA 92109 CL Aerobatics/Paul continued page 36 Oaks Irving Texas 75060 tel 214 254 5096 Foam Wings. two three used have Bob Hunt Arnold Stott foam wing supplies Arnold retired moved Texas havent heard him since Bob announced typewritten letter writer dated December 27 1977 discon tinue foam wings because material shortages namely balsa John T Poynter Kirk Mullinnix Cypress California announced enter ing foam wing business will call themselves J K Custom Foam Wings have received wings appears competitive wing foam cutting good /8-in spar covering good would prefer slightly thicker trailing edge have always accused building planes could withstand Pappy Boyingtons landings wing pretty light 135 grams left 125 right plan produce four 35-size wings Genesis Nobler Gieseke Nobler Stiletto three 46-size wings Genesis Shark Stiletto 46 Half-A wing Cost core will $1500 postpaid core covered balsa spar $3600 postpaid core covered balsa spar leading edge $3900 postpaid Half-A wing will go $1850 covered balsa postpaid will $500 template 94 Model Aviation 4 NLY KITS OF WORLD CLASSIC AIRCRAFT FROM FLYLINE A99AIs9jpgb3jf LU TON Minor 9W50 Sd 031189921 ignI gi9g9 Pg 53012 530 flg i2192999.S.32295 K 55 259 29555 p530 big 2921 1999 ig29g9 high) gAol 92593025 Send 254 catalog See yourdealer oil FLYLINEs classic kits NOW FLYLINE MODELS INC 9092 593 2030 HEINKEL HelOOD 9505*LS2530 Afl29 pgs9g553052 552555 5i2299952259315.-525 925030 9 925322 sd 330 9Ol939fl8392g5522 65 OVER 54808 8 CA OGE SCALE ORA,S~ no ___1j 8028 SON A TECH 48500 M KENZ E HWYV DA OR 9 488 RCPlanes Cars BoatsCL FF HOAFX TYCO PLASTICS TRAINS Complete Hobby Store send 50 new 1978 catalog HOBBIES 507 WMaple Ave Vienna Va 22180 ARTICLES WANTED Have design youd like have pub lished topic youd like write about tell editor about idea may worth money WINNERS DU-BRO KWIK-LINK tried true 141 3/16 Wspring steel Kwi k-Link Ideal control linkage No 1092each 75c DUBRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084 charge wings listed above Stan dard price further cores templates will charged root tip templates ood must sent J K address K Custom Foam wings 10261 Janice Lynn Cypress CA 90630 tel 213 596 9053 714995 3253 last part foam wing tale tail talking Bob Hunt phone January 31 1978 said would get back business foam wings wood becomes available tends produce wings wood can used will retain high quality desires times short wood supply will supply foam cores glue plus detailed instruction booklet will tell apply skins foam Ac cording Bob balsa wood supply time low situation doesnt look get brighter information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 Dont Fly Control Line Models Near Power Lines CL Racing/Lee continued page 37 change would circles racing will simpler set up since smaller Goodyear circles would eliminated Another item Ive thinking about concerns new engine rule Slow Rat As aware now new rule states engine has have pro duced original manufacturer configuration trying use Some parts excepted course major parts must produced doesnt prohibit modification ever could take engine modify its parts wasnt 35 start cant make out history rule interesting original proposal made back 1974 Slow Rat included some engine restrictions cally non Schnuerle production engines proposal published Model viation loud cries anguish So put cross proposal against own rule proposal have restrictions other size CLCB snapped up result got rules knew last two years During winter 1975-76 new rules favorably voted upon several racers began build up special engines specifically Slow Rat gen eral de-bored de-stroked Schnuerle 40s ran well enough quickly dominate event taking out fun category making serious racing event super trick engines generally available public might recall some comments made about Slow Rat Dayton Nats finals consisted trick homebuilts pre-production prototypes except lone Fox rear-exhaust 36 As result first years competition rules several changes sug gested some individuals combined Combat/Racing/Carrier Ad visory Committees proposal attempt get uniform set engine rules across three so-called slow events Slow Rat Profile Carrier Slow Combat rule proposal finally passed Slow Rat now law net effect rule eliminate lot very good competitive fliers causing much bad feeling has helped event will hurt am sorry rule ever passed CLCB cannot understand individual CLCB would vote anything straight ticket across three events proposed would rule OK event another Maybe case well vote other guys event fly Im sure well never know individual voted way did Slow Rat fliers will suffering because couple years know least area will ignore rule wont advocate action since rule will followed Nats hard compete local levels under set rules have make serious adjustments order fly Nats still pos sible solution Another solution might little long ranged fly two classes Slow Rat AMA specifications another whatever special rules might popular area proposed during last rules cycle CLCB ruled against area going fly AMA Slow Rat same event engine restrictions plain bearing no Schnuerle production engine front intake hope putting little fun back event lot competitors just dont want com pete $100 engines 120-mph speeds Slow Rat Engines solution engine rule above offered Paul Tune Nashville area Paul took time put effort build up de-bored Schnuerle4o 35 Paul started OS Max 40 put together better run ning set-ups around course new rule disadvantage So Paul did obvious thing got OS Max build engine him Through World Engines OS Max engine Paul developed will available commer cially first April price will competitive can contact Paul Box 706 Franklin TN 37964 Another engine quite competitive Slow Rat KB 58 has market since last spring engine ABC set-up front-rotor induc tion front-rotor style cer tainly popular configuration people would prefer run engine rear intake possible As turns out KB historically has built engines common dimen sions parts interchangeability standard building several variations same basic design sev eral different displacements 65-58May1978 95 DU-BRO PLATED BRASS DURA COLLARS ENOUGH STOCK SO THAT THREADS WILL NOT STRIP CAN BE RE-WORKED FOR OTHER USES LIKE HARDENED STEEL NICE IMPROVEMENT THAT HAS ALWAYS BEEN THERE STILL AVAILABLE IN SETS OF 4 COMPLETE WITH ALLEN WRENCH FOR MODELERS WHO DEMAND ONLY THE VERY BEST WHY PAY MORE AND GET
Edition: Model Aviation - 1978/05
Page Numbers: 36, 94, 95
I Aerobahcs El Wynn Paul AFTER YEARS years specula tion stunt fliers now may have method try retractable landing gears will dependable enough top level competi tion Free fighter stunt flier kit manu facturer all-around toy airplane freak Fast Richard Mathis writes say has successfully used Seelig freeflight timer activate retracts 35engine stunt plane has used Adjusto Jig RC gears hooked up bellcrank bellcrank activated springs timer timer pulls gears up about 10 seconds after helper re leases catch timer lowers gears about 20 seconds before engine cut off Seelig timer German device noted its reliability timer can perform four separate functions Dick stated system added about three total ounces old airplane would about e less plane designed ground up retracts also says dyed wool stunt flier trust timer will take great faith Seelig timers famous being reliable about performance Dick states plane definitely handles better less Dutch roll defined Dick slight rolling some yawing thrown caused heavy wing tips and/or wide landing gear and/or wheel pants act forward fins better penetration better tracking grooving better inside corners says does go faster wind wind-up situations like three inside loops also thinks plane looks lot better air something will have given some time during next summers cam paign stunt trail building new Chizler around HP 40 re tracts summer Cost timer about $1750 basic retracts about $1000 Next remember seeing old magazine about guy named named Walker control line air plane did rolls PAMPA Classes Try PAMPA category system summer contest Its too late arrange use PAMPA category system separate fliers four different flying classes precision aerobatics contest using either voluntary placing using latest guide stunt rankings Stunt News novice beginner termediate fliers can fly against others similar abilities Have contest director add contest flyer brochure statement contest will have Precision Aero baticsfour PAMPA classes con test management leary going way try three PAMPA classes requires same number trophies having J 5 0 type contest using three PAMPA classes should set up either Beginner Intermediate Advanced-Expert combined try Beginner-Intermediate combined Ad vanced Expert Remember breakdown classes according what competitors aver age scores according AMA scoring points PAMPA Beginner300 under average PAMPA Interme mediate301-399 PAMPA Advanced 400-499 PAMPA Expert500 over now approximately 350 stunt fliers have ranked placed Richard Byron Omaha Nebraska keeps statistics PAMPA stunt rankings still people have chance fly PAMPA cat egories However major con tests around country have tried category system once results excellent participation fun better flying little paper work Al needs parts FAI World Team member Al Rabe Irving Texas sends out ur gent plea anyone may have rare Aloise-ST 51 engines put out last year Al needs crankshafts will gladly rebuild engine back ST 46 configura tion no cost plans use 51-size engine World Champion ship flying summer England has engine needs least spare engine crankshaft get through summer usual 500 flights Write call collect Al 1904 Valley 36 Model Aviation Getting together Edwar Schwerkolts ductedfan version Miller JM-2 has 30-in span foam wing weighs 4 lbs its Enya 35 fuselage profile Photo Wynn Paul Continued page 94 Clean looking original Jim Coil called Shoreman Max 35 engine Wynn Paul pic Knobadjustable stunt handle used Gene Martine made aluminum wood Paul pic Rutherford May 1977 MA maybe Slow form Rich Brashers Rotation Station kit-type plane might start Nemesis Voodoo add longer motor mounts make 5-in minimum leading edge thrust washer remember no prop extensions extra thick thrust washers allowed boom-type body can made out i/i balsa capped 3/16 spruce bass top bottom get plane balance properly might make extra long body first attempt cut length once proper balance achieved guys have used flaps worth try especially use mylar binges since could add subtract flaps ease Probably 30 flap movement enough coupled 15 elevator plane doesnt turn tightly enough 15 elevator too nose-heavy wing loading too high youre mood building original Fast Combat designs might modify Nemesis Voodoo Add 7-in monoboom 3 12 stabilator recess engine far possible probably can get away oo since bladder tube will reinforce leading edge its hard get engine very far back plane Neme sis construction Voodoo kits come very heavy leading edges perfor mance boost might replace commercial variety selected lightness Make some giant wing tips out 4-in wide wood sure read articles airfoils because will confuse mystery poor needle setting may solved perform following test Screw pressure fitting backplate make sure hole goes through seal up exhaust port venturi front bearing want make engine waterproof because will dunk soapy water use syringe put couple pounds pressure inside case Air escaping past backplate gasket through bad casting may give hint its tempermental ways Pull tape/baggies/rubberbands off front engine see much air leaks out past crank looks like Lawrence Welks bubble machine inside motor might think about using grav ity feed future remedy leak backplate try lapping case re moving burrs second gasket works too little leakage out front normal bubbles come out some other place case try coating epoxy 2-ounce cloth must use metal bellcranks flexible leadouts try method bushing suggested Mike Hoffelt Use heat shrink tubing drill holes snug fit Next grind out side bell shape avoid sharp corners tub ing inserted hot conical object used flair tubing both sides results nice bushing wont fall wear out Nylon works too requires heat didnt think Id make way through saying something about FAI did Mention made FAJ Gazette racing speed fliers bible about recent drop Rossi qual ity Rossi 15 still champ Ive noticed several latest engines have dogs compared engines Ive purchased years ago Replacing cranks two seemed help though could detect nary crack bend originals drop quality blamed artificial limit over-the-counter cost engine approximately $60 meet Quarter Midget require ments Apparently engine needs sell nearer $90 separate engine parts priced accordingly Something give day Rossi may join ranks other well-known engines really storm replace crank super trick item bearings new head re fit moving parts Special T-shirts atailable Debi Imboff 524 Sinclair NE Grand Rapids MI 49503 can first fly ing site have shirt bodly pro claims Combact Fliers Get Tail Price $495 shirt 75 postage handling plus $100 extra name pocket up 10 letters send Debi check $670 sure clude name address size shirt desired Charlie Johnson 3716 Ingraham St San Diego CA 92109 CL Aerobatics/Paul continued page 36 Oaks Irving Texas 75060 tel 214 254 5096 Foam Wings. two three used have Bob Hunt Arnold Stott foam wing supplies Arnold retired moved Texas havent heard him since Bob announced typewritten letter writer dated December 27 1977 discon tinue foam wings because material shortages namely balsa John T Poynter Kirk Mullinnix Cypress California announced enter ing foam wing business will call themselves J K Custom Foam Wings have received wings appears competitive wing foam cutting good /8-in spar covering good would prefer slightly thicker trailing edge have always accused building planes could withstand Pappy Boyingtons landings wing pretty light 135 grams left 125 right plan produce four 35-size wings Genesis Nobler Gieseke Nobler Stiletto three 46-size wings Genesis Shark Stiletto 46 Half-A wing Cost core will $1500 postpaid core covered balsa spar $3600 postpaid core covered balsa spar leading edge $3900 postpaid Half-A wing will go $1850 covered balsa postpaid will $500 template 94 Model Aviation 4 NLY KITS OF WORLD CLASSIC AIRCRAFT FROM FLYLINE A99AIs9jpgb3jf LU TON Minor 9W50 Sd 031189921 ignI gi9g9 Pg 53012 530 flg i2192999.S.32295 K 55 259 29555 p530 big 2921 1999 ig29g9 high) gAol 92593025 Send 254 catalog See yourdealer oil FLYLINEs classic kits NOW FLYLINE MODELS INC 9092 593 2030 HEINKEL HelOOD 9505*LS2530 Afl29 pgs9g553052 552555 5i2299952259315.-525 925030 9 925322 sd 330 9Ol939fl8392g5522 65 OVER 54808 8 CA OGE SCALE ORA,S~ no ___1j 8028 SON A TECH 48500 M KENZ E HWYV DA OR 9 488 RCPlanes Cars BoatsCL FF HOAFX TYCO PLASTICS TRAINS Complete Hobby Store send 50 new 1978 catalog HOBBIES 507 WMaple Ave Vienna Va 22180 ARTICLES WANTED Have design youd like have pub lished topic youd like write about tell editor about idea may worth money WINNERS DU-BRO KWIK-LINK tried true 141 3/16 Wspring steel Kwi k-Link Ideal control linkage No 1092each 75c DUBRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084 charge wings listed above Stan dard price further cores templates will charged root tip templates ood must sent J K address K Custom Foam wings 10261 Janice Lynn Cypress CA 90630 tel 213 596 9053 714995 3253 last part foam wing tale tail talking Bob Hunt phone January 31 1978 said would get back business foam wings wood becomes available tends produce wings wood can used will retain high quality desires times short wood supply will supply foam cores glue plus detailed instruction booklet will tell apply skins foam Ac cording Bob balsa wood supply time low situation doesnt look get brighter information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 Dont Fly Control Line Models Near Power Lines CL Racing/Lee continued page 37 change would circles racing will simpler set up since smaller Goodyear circles would eliminated Another item Ive thinking about concerns new engine rule Slow Rat As aware now new rule states engine has have pro duced original manufacturer configuration trying use Some parts excepted course major parts must produced doesnt prohibit modification ever could take engine modify its parts wasnt 35 start cant make out history rule interesting original proposal made back 1974 Slow Rat included some engine restrictions cally non Schnuerle production engines proposal published Model viation loud cries anguish So put cross proposal against own rule proposal have restrictions other size CLCB snapped up result got rules knew last two years During winter 1975-76 new rules favorably voted upon several racers began build up special engines specifically Slow Rat gen eral de-bored de-stroked Schnuerle 40s ran well enough quickly dominate event taking out fun category making serious racing event super trick engines generally available public might recall some comments made about Slow Rat Dayton Nats finals consisted trick homebuilts pre-production prototypes except lone Fox rear-exhaust 36 As result first years competition rules several changes sug gested some individuals combined Combat/Racing/Carrier Ad visory Committees proposal attempt get uniform set engine rules across three so-called slow events Slow Rat Profile Carrier Slow Combat rule proposal finally passed Slow Rat now law net effect rule eliminate lot very good competitive fliers causing much bad feeling has helped event will hurt am sorry rule ever passed CLCB cannot understand individual CLCB would vote anything straight ticket across three events proposed would rule OK event another Maybe case well vote other guys event fly Im sure well never know individual voted way did Slow Rat fliers will suffering because couple years know least area will ignore rule wont advocate action since rule will followed Nats hard compete local levels under set rules have make serious adjustments order fly Nats still pos sible solution Another solution might little long ranged fly two classes Slow Rat AMA specifications another whatever special rules might popular area proposed during last rules cycle CLCB ruled against area going fly AMA Slow Rat same event engine restrictions plain bearing no Schnuerle production engine front intake hope putting little fun back event lot competitors just dont want com pete $100 engines 120-mph speeds Slow Rat Engines solution engine rule above offered Paul Tune Nashville area Paul took time put effort build up de-bored Schnuerle4o 35 Paul started OS Max 40 put together better run ning set-ups around course new rule disadvantage So Paul did obvious thing got OS Max build engine him Through World Engines OS Max engine Paul developed will available commer cially first April price will competitive can contact Paul Box 706 Franklin TN 37964 Another engine quite competitive Slow Rat KB 58 has market since last spring engine ABC set-up front-rotor induc tion front-rotor style cer tainly popular configuration people would prefer run engine rear intake possible As turns out KB historically has built engines common dimen sions parts interchangeability standard building several variations same basic design sev eral different displacements 65-58May1978 95 DU-BRO PLATED BRASS DURA COLLARS ENOUGH STOCK SO THAT THREADS WILL NOT STRIP CAN BE RE-WORKED FOR OTHER USES LIKE HARDENED STEEL NICE IMPROVEMENT THAT HAS ALWAYS BEEN THERE STILL AVAILABLE IN SETS OF 4 COMPLETE WITH ALLEN WRENCH FOR MODELERS WHO DEMAND ONLY THE VERY BEST WHY PAY MORE AND GET