Contml Line 7 Racing John Ballard NEW K&B prototype 40 Rat Form ula 40 engine just recently received new prototype K&Bs 40 rear-valve racing engine Careful observation engine shows special phenolic-cage bear ings well front housing being per manently affixed case epoxy addition cylinder timing same Billy Hughes Nats-winning K&B 40 significant change subcrankcase pressure release small hole drilled rear crankcase just below exhaust header reduces crankcase blow-by pres sure should improve performance Weather winter Midwest area has extremely cold have able compare engine standard K&B 65 engines will make tests performance ggmparisons inflight comparisions ioon weather cooperates Chicken-hopper tanks received photocopy 1947 British hardback booklet called Control Line Flying R H Warring Doug Dahike Wisconsin sent 1947 drawing chicken hopper-type tank guess 1947 hitech year Faster pit stops mean quicker race times recent Reno Nats seve ral discussion sessions concerning improv ing Rat Race Scale Race times reducing time spent pit Careful observation pit stop leads observer quick realization operation during pit re quires maximum amount time filling fuel tank aircraft generally caught right hand fuel bulb transferred left hand right hand brass tube must inserted angle quickfill avoid tearing rubber tank Continued page 164 Bud Hughes shows standard two handed technique Inserting fuel-fill bulb tanks quick-f ill pit atop will take lots longer Tim GlilottsI Tim Giiiott uses hi h-tech pit equipment refuel Scale Racer pressurized fuel filler system Note ~el line snaking down arm rubberband shoulder keeps tube place end-fitting attaches middle fingers leaving index finger thumb free attach glow plug lead Look closely youll see fuel filter Just above elbow Right hand free reset fuel shutoff flip prop Look under wing Sport Racer see its rectangular fuel tank vent tube bent airatream feed tube angled direct fusi line smoothly through fuel shutoff clear engine hot-spots tips column 72 Model Aviation drawing 1947 British book Control Line Flying written Ron Warring Today kind fuel tank called chicken-hopper US radically new ships What heck day comes Ill just fly Sea Fury Old-Timer Stunt Al Rabe 1904 Valley Oaks Ct Irving TX 75061 CL Racing/Ballard Continued page 72 must filled tube removed fuel bulb discarded engine restarted Apparently two-andone-half seconds can saved using pressure refueler system am enclosing picture typical problem encoun tered hitting quick-fill fill pipe particular pit man using fingers left hand guide filler pipe quick-fill left hand could attaching battery resetting fuel shutoff competitor has apparently mastered situation Tim Gillott Tim utilizes pressurized fuel system similar Matched Performance system TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marne K&B FUELSK&B GLOW PLUGS 7 BlenUs4 choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER FOXY RESIN K&B SUPER FOXY THINNER K&R SUPER FOXY PRIMERK&B SUPER FOXY PAINT 66 MIXING CUPS used Team Race competitors uses army ammo belt pint fuel can pressurized either Coleman pump air pump such used RC retractable gear systems tube exits can rubberbanded arm female type TR fitting tank other half mounted Tims middle finger leaves thumb index finger free battery connections So essence tank can filled other two fingers can clamping engage battery leaves right hand completely free reset shutoff flip propeller no bulb needs discarded no problem entering exiting quick-fill tube no way dirt can enter system bulb rolling around ground getting dirt fuel jug area Sport Race tank modifications have several requests concerning reliable tank use Sport Race models big problems find Racers plain-bearing engines tend vibrate causing fuel-foam ing problems very sturdy front nose pod profile fuselage must utilized keep vibration minimum addition found beneficial use clear silicone caulk blue gasket sealer between profile fuselage tank dampen vibration silicone seemed unaffected high- low nitro fuels tank seems useful rectangular tank approxi mately four inches long oneand-one-half inches wide tank must mounted fuel feed tube parallel center needle valve tube needs removed tank bent fuel line tub ing can passed through fuel shutoff kinking also away heat engine Midwest Sport Race rules require A-in fill tube found fill tube worked much bet ter bent air flow tube merely enters inside tank does run back feed line might Uniflow system tube merely sticks down inside front tank bent air stream have found excellent bends can made copper brass tubing us ing Harry Higleys tube-bender vir tually eliminates kinks almost angle bend can easily accomplished transition full empty rectangular tank seems excellent Obviously larger capacity tank engine can set fairly lean fear overheating since fuel shutoff can utilized larger-capacity tank fuel pressure 30 40 laps before pit stop will allow constant needle valve setting Finally find putting tank underneath wing additional silicone damping can used vibra tion-free tank attachment possible putting silicone 6n top section tank building plywood floor particular underside wing area help dampen vibration New products have just seen three new propeller pitch gauges produced Walt Perkins Shadow Racing F IDLflULIL~ three styles Team Race Style Style II The Team Race pitch gauge measures EEUEBIE -in pitch increments designed props 8-in diameter pitches 4 8 Style props 12-in 70 cowls 9 wheelpants tar Sig Pica diameter pitches 3 15 Top-Flue Jemco Nosen Pilot Stattord Radlals BehrensGarmhausen W E Tech andutherkilsand half-pitch increments Style II plans One-piece laminated construction handlaid 24-in diameter propellers 4 14-in liberglass strong lightweight Send BASE tor pitch A-in pitch increments price list please include names models interested parts tar call between DAM -gauges lighter weight 9 PM EDT tor intormatlon COD ordering Wecompact facilitate transportation hope hear youlfield use have permanently photo IBERGLASS 703 890-6017etched scales will rub off gauges can ordered meas jU4ERure pusher props well tractor Opt MA RI Ba 530 Goodvew VA 24095 Continued page 16t 164 Model Aviation FULL LINE METAL SPECIALISTS NEW FOURMOST PRODUCTS! FOURMOST RECOIL TUBING four foot length super-tough fuel-proof urethane tubing pre-formed FOUR-INCH COIL allows placement field box can convenient distance aircraft boat After use tubing will retract its earlier space-saving form I1 ~i z price$3 95 Xr Vos WE NAVE THE FITTINc3 SOLUTION ORsmallSIze 1/1610Price *150 1 Tee 2 Elbows Pen Bladder Tee UcT 4040 24th Ave Forest Grove OR 97116 FOURM~i PRODTele hone 503 3572732 propellers simple change pitch scale also have quick-release feature speed prop changing blade other can obtain information writing Walt Perkins Shadow Racing Inc 3421 Southeast 28th Court Ocala FL 32671 As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 CL Speed/Hempel Continued page 73 ing model builder Hobbypoxy new product introduced best grainfiller youll ever use Its called Fast Fill because dries fast sands fast fills fast Its single-component air-dry material means dont mix two parts together Just open can its ready use Stir up add little thinner like Hobbypoxy thinner course brush directly bare balsa Fast Fill penetrates seals fills shot Itll dry before know it sands smoothly easily load ing paper Two three coats need completely fill grain Fast Fill compatible hobby paints including dopes enamels ure thanes epoxies Its local hobby shop now go get some free information entire line finishing materials write Hobby poxy Products Division Pettit Paint Company Inc 36 Pine Street P0 Box 378 Rockaway NJ 07866 recent Hobby Industry Associa tion Show noticed new set flying lines Sullivan Products lines made Keviar 29 properties similar used electromechanical cables cordage ballistic fabrics sewing thread parachutes webbing sail cloth Kevlar registered trademark DuPonts high-temperatureresistant araniid fibers unique combination toughness extra-high tenacity modulus lines developed strong er 018 stainless steel cable thing smaller Sullivan recommends using Kevlar lines place 018 smaller cable recommend tying knots lines Also will bend kink resonate engineering tests conducted University Maryland Instron Universal Testing Machine Obvi ously test data can vary sample sample figures indicate consid erable increase strength over steel lines Also price right Mail SASE Sullivan Products P0 Box 5166 North Haven Street Baltimore MD 21224 information %A engine parts modelers have written find out can locate blank Cox 049 cylinders have available plus other Cox 049 engine parts Also have new case chrome shaft setup infor mation send SASE P&G Metal Shop C/O Gene Hempel address given below write manufacturer con cerning products would please indi cate read about fine products Gene Hempels CL Speed column Model Aviation magazine Gene Hempel 301 N Yale Dr Garland TX 75042 Mandarin/Ruggiero Continued page 78 Sand smooth round section Align wing fuselage epoxy thoroughly being sure work plenty epoxy joints Reinforce inside wing-fuselage joint fiberglass tape scrap balsa sure left wing panel i longer right Glue h-in cockpit floor Glue fixed flaps place being sure MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per order M95 ec CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Thstorl McCoy TaIpan 40 MJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available emeedte Wtdds B-70 Sport Free Flight 4% C Sheet Balsa Construction 0 Builds Less 4 Hours C Flys LimIted Area e 6 Long 020-049 Engine Included See Local Hobbie Dealer Send $1795 4aes Wed4 PO Box 804 Folsom Calif 95630 cllt Re. Add sales Tea InquIrIes InvIted 166 Model Aviation FUEL LINE PIPING PROBLEM Size 3/32 0PrIce *200LARGE 1 Tee Elbow 1 union i Plug RJL Industries ox 5654 dena CA 91107 Phone 818 359-0016
Edition: Model Aviation - 1985/06
Page Numbers: 72, 164, 166
Contml Line 7 Racing John Ballard NEW K&B prototype 40 Rat Form ula 40 engine just recently received new prototype K&Bs 40 rear-valve racing engine Careful observation engine shows special phenolic-cage bear ings well front housing being per manently affixed case epoxy addition cylinder timing same Billy Hughes Nats-winning K&B 40 significant change subcrankcase pressure release small hole drilled rear crankcase just below exhaust header reduces crankcase blow-by pres sure should improve performance Weather winter Midwest area has extremely cold have able compare engine standard K&B 65 engines will make tests performance ggmparisons inflight comparisions ioon weather cooperates Chicken-hopper tanks received photocopy 1947 British hardback booklet called Control Line Flying R H Warring Doug Dahike Wisconsin sent 1947 drawing chicken hopper-type tank guess 1947 hitech year Faster pit stops mean quicker race times recent Reno Nats seve ral discussion sessions concerning improv ing Rat Race Scale Race times reducing time spent pit Careful observation pit stop leads observer quick realization operation during pit re quires maximum amount time filling fuel tank aircraft generally caught right hand fuel bulb transferred left hand right hand brass tube must inserted angle quickfill avoid tearing rubber tank Continued page 164 Bud Hughes shows standard two handed technique Inserting fuel-fill bulb tanks quick-f ill pit atop will take lots longer Tim GlilottsI Tim Giiiott uses hi h-tech pit equipment refuel Scale Racer pressurized fuel filler system Note ~el line snaking down arm rubberband shoulder keeps tube place end-fitting attaches middle fingers leaving index finger thumb free attach glow plug lead Look closely youll see fuel filter Just above elbow Right hand free reset fuel shutoff flip prop Look under wing Sport Racer see its rectangular fuel tank vent tube bent airatream feed tube angled direct fusi line smoothly through fuel shutoff clear engine hot-spots tips column 72 Model Aviation drawing 1947 British book Control Line Flying written Ron Warring Today kind fuel tank called chicken-hopper US radically new ships What heck day comes Ill just fly Sea Fury Old-Timer Stunt Al Rabe 1904 Valley Oaks Ct Irving TX 75061 CL Racing/Ballard Continued page 72 must filled tube removed fuel bulb discarded engine restarted Apparently two-andone-half seconds can saved using pressure refueler system am enclosing picture typical problem encoun tered hitting quick-fill fill pipe particular pit man using fingers left hand guide filler pipe quick-fill left hand could attaching battery resetting fuel shutoff competitor has apparently mastered situation Tim Gillott Tim utilizes pressurized fuel system similar Matched Performance system TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marne K&B FUELSK&B GLOW PLUGS 7 BlenUs4 choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER FOXY RESIN K&B SUPER FOXY THINNER K&R SUPER FOXY PRIMERK&B SUPER FOXY PAINT 66 MIXING CUPS used Team Race competitors uses army ammo belt pint fuel can pressurized either Coleman pump air pump such used RC retractable gear systems tube exits can rubberbanded arm female type TR fitting tank other half mounted Tims middle finger leaves thumb index finger free battery connections So essence tank can filled other two fingers can clamping engage battery leaves right hand completely free reset shutoff flip propeller no bulb needs discarded no problem entering exiting quick-fill tube no way dirt can enter system bulb rolling around ground getting dirt fuel jug area Sport Race tank modifications have several requests concerning reliable tank use Sport Race models big problems find Racers plain-bearing engines tend vibrate causing fuel-foam ing problems very sturdy front nose pod profile fuselage must utilized keep vibration minimum addition found beneficial use clear silicone caulk blue gasket sealer between profile fuselage tank dampen vibration silicone seemed unaffected high- low nitro fuels tank seems useful rectangular tank approxi mately four inches long oneand-one-half inches wide tank must mounted fuel feed tube parallel center needle valve tube needs removed tank bent fuel line tub ing can passed through fuel shutoff kinking also away heat engine Midwest Sport Race rules require A-in fill tube found fill tube worked much bet ter bent air flow tube merely enters inside tank does run back feed line might Uniflow system tube merely sticks down inside front tank bent air stream have found excellent bends can made copper brass tubing us ing Harry Higleys tube-bender vir tually eliminates kinks almost angle bend can easily accomplished transition full empty rectangular tank seems excellent Obviously larger capacity tank engine can set fairly lean fear overheating since fuel shutoff can utilized larger-capacity tank fuel pressure 30 40 laps before pit stop will allow constant needle valve setting Finally find putting tank underneath wing additional silicone damping can used vibra tion-free tank attachment possible putting silicone 6n top section tank building plywood floor particular underside wing area help dampen vibration New products have just seen three new propeller pitch gauges produced Walt Perkins Shadow Racing F IDLflULIL~ three styles Team Race Style Style II The Team Race pitch gauge measures EEUEBIE -in pitch increments designed props 8-in diameter pitches 4 8 Style props 12-in 70 cowls 9 wheelpants tar Sig Pica diameter pitches 3 15 Top-Flue Jemco Nosen Pilot Stattord Radlals BehrensGarmhausen W E Tech andutherkilsand half-pitch increments Style II plans One-piece laminated construction handlaid 24-in diameter propellers 4 14-in liberglass strong lightweight Send BASE tor pitch A-in pitch increments price list please include names models interested parts tar call between DAM -gauges lighter weight 9 PM EDT tor intormatlon COD ordering Wecompact facilitate transportation hope hear youlfield use have permanently photo IBERGLASS 703 890-6017etched scales will rub off gauges can ordered meas jU4ERure pusher props well tractor Opt MA RI Ba 530 Goodvew VA 24095 Continued page 16t 164 Model Aviation FULL LINE METAL SPECIALISTS NEW FOURMOST PRODUCTS! FOURMOST RECOIL TUBING four foot length super-tough fuel-proof urethane tubing pre-formed FOUR-INCH COIL allows placement field box can convenient distance aircraft boat After use tubing will retract its earlier space-saving form I1 ~i z price$3 95 Xr Vos WE NAVE THE FITTINc3 SOLUTION ORsmallSIze 1/1610Price *150 1 Tee 2 Elbows Pen Bladder Tee UcT 4040 24th Ave Forest Grove OR 97116 FOURM~i PRODTele hone 503 3572732 propellers simple change pitch scale also have quick-release feature speed prop changing blade other can obtain information writing Walt Perkins Shadow Racing Inc 3421 Southeast 28th Court Ocala FL 32671 As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 CL Speed/Hempel Continued page 73 ing model builder Hobbypoxy new product introduced best grainfiller youll ever use Its called Fast Fill because dries fast sands fast fills fast Its single-component air-dry material means dont mix two parts together Just open can its ready use Stir up add little thinner like Hobbypoxy thinner course brush directly bare balsa Fast Fill penetrates seals fills shot Itll dry before know it sands smoothly easily load ing paper Two three coats need completely fill grain Fast Fill compatible hobby paints including dopes enamels ure thanes epoxies Its local hobby shop now go get some free information entire line finishing materials write Hobby poxy Products Division Pettit Paint Company Inc 36 Pine Street P0 Box 378 Rockaway NJ 07866 recent Hobby Industry Associa tion Show noticed new set flying lines Sullivan Products lines made Keviar 29 properties similar used electromechanical cables cordage ballistic fabrics sewing thread parachutes webbing sail cloth Kevlar registered trademark DuPonts high-temperatureresistant araniid fibers unique combination toughness extra-high tenacity modulus lines developed strong er 018 stainless steel cable thing smaller Sullivan recommends using Kevlar lines place 018 smaller cable recommend tying knots lines Also will bend kink resonate engineering tests conducted University Maryland Instron Universal Testing Machine Obvi ously test data can vary sample sample figures indicate consid erable increase strength over steel lines Also price right Mail SASE Sullivan Products P0 Box 5166 North Haven Street Baltimore MD 21224 information %A engine parts modelers have written find out can locate blank Cox 049 cylinders have available plus other Cox 049 engine parts Also have new case chrome shaft setup infor mation send SASE P&G Metal Shop C/O Gene Hempel address given below write manufacturer con cerning products would please indi cate read about fine products Gene Hempels CL Speed column Model Aviation magazine Gene Hempel 301 N Yale Dr Garland TX 75042 Mandarin/Ruggiero Continued page 78 Sand smooth round section Align wing fuselage epoxy thoroughly being sure work plenty epoxy joints Reinforce inside wing-fuselage joint fiberglass tape scrap balsa sure left wing panel i longer right Glue h-in cockpit floor Glue fixed flaps place being sure MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per order M95 ec CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Thstorl McCoy TaIpan 40 MJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available emeedte Wtdds B-70 Sport Free Flight 4% C Sheet Balsa Construction 0 Builds Less 4 Hours C Flys LimIted Area e 6 Long 020-049 Engine Included See Local Hobbie Dealer Send $1795 4aes Wed4 PO Box 804 Folsom Calif 95630 cllt Re. Add sales Tea InquIrIes InvIted 166 Model Aviation FUEL LINE PIPING PROBLEM Size 3/32 0PrIce *200LARGE 1 Tee Elbow 1 union i Plug RJL Industries ox 5654 dena CA 91107 Phone 818 359-0016
Edition: Model Aviation - 1985/06
Page Numbers: 72, 164, 166
Contml Line 7 Racing John Ballard NEW K&B prototype 40 Rat Form ula 40 engine just recently received new prototype K&Bs 40 rear-valve racing engine Careful observation engine shows special phenolic-cage bear ings well front housing being per manently affixed case epoxy addition cylinder timing same Billy Hughes Nats-winning K&B 40 significant change subcrankcase pressure release small hole drilled rear crankcase just below exhaust header reduces crankcase blow-by pres sure should improve performance Weather winter Midwest area has extremely cold have able compare engine standard K&B 65 engines will make tests performance ggmparisons inflight comparisions ioon weather cooperates Chicken-hopper tanks received photocopy 1947 British hardback booklet called Control Line Flying R H Warring Doug Dahike Wisconsin sent 1947 drawing chicken hopper-type tank guess 1947 hitech year Faster pit stops mean quicker race times recent Reno Nats seve ral discussion sessions concerning improv ing Rat Race Scale Race times reducing time spent pit Careful observation pit stop leads observer quick realization operation during pit re quires maximum amount time filling fuel tank aircraft generally caught right hand fuel bulb transferred left hand right hand brass tube must inserted angle quickfill avoid tearing rubber tank Continued page 164 Bud Hughes shows standard two handed technique Inserting fuel-fill bulb tanks quick-f ill pit atop will take lots longer Tim GlilottsI Tim Giiiott uses hi h-tech pit equipment refuel Scale Racer pressurized fuel filler system Note ~el line snaking down arm rubberband shoulder keeps tube place end-fitting attaches middle fingers leaving index finger thumb free attach glow plug lead Look closely youll see fuel filter Just above elbow Right hand free reset fuel shutoff flip prop Look under wing Sport Racer see its rectangular fuel tank vent tube bent airatream feed tube angled direct fusi line smoothly through fuel shutoff clear engine hot-spots tips column 72 Model Aviation drawing 1947 British book Control Line Flying written Ron Warring Today kind fuel tank called chicken-hopper US radically new ships What heck day comes Ill just fly Sea Fury Old-Timer Stunt Al Rabe 1904 Valley Oaks Ct Irving TX 75061 CL Racing/Ballard Continued page 72 must filled tube removed fuel bulb discarded engine restarted Apparently two-andone-half seconds can saved using pressure refueler system am enclosing picture typical problem encoun tered hitting quick-fill fill pipe particular pit man using fingers left hand guide filler pipe quick-fill left hand could attaching battery resetting fuel shutoff competitor has apparently mastered situation Tim Gillott Tim utilizes pressurized fuel system similar Matched Performance system TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marne K&B FUELSK&B GLOW PLUGS 7 BlenUs4 choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER FOXY RESIN K&B SUPER FOXY THINNER K&R SUPER FOXY PRIMERK&B SUPER FOXY PAINT 66 MIXING CUPS used Team Race competitors uses army ammo belt pint fuel can pressurized either Coleman pump air pump such used RC retractable gear systems tube exits can rubberbanded arm female type TR fitting tank other half mounted Tims middle finger leaves thumb index finger free battery connections So essence tank can filled other two fingers can clamping engage battery leaves right hand completely free reset shutoff flip propeller no bulb needs discarded no problem entering exiting quick-fill tube no way dirt can enter system bulb rolling around ground getting dirt fuel jug area Sport Race tank modifications have several requests concerning reliable tank use Sport Race models big problems find Racers plain-bearing engines tend vibrate causing fuel-foam ing problems very sturdy front nose pod profile fuselage must utilized keep vibration minimum addition found beneficial use clear silicone caulk blue gasket sealer between profile fuselage tank dampen vibration silicone seemed unaffected high- low nitro fuels tank seems useful rectangular tank approxi mately four inches long oneand-one-half inches wide tank must mounted fuel feed tube parallel center needle valve tube needs removed tank bent fuel line tub ing can passed through fuel shutoff kinking also away heat engine Midwest Sport Race rules require A-in fill tube found fill tube worked much bet ter bent air flow tube merely enters inside tank does run back feed line might Uniflow system tube merely sticks down inside front tank bent air stream have found excellent bends can made copper brass tubing us ing Harry Higleys tube-bender vir tually eliminates kinks almost angle bend can easily accomplished transition full empty rectangular tank seems excellent Obviously larger capacity tank engine can set fairly lean fear overheating since fuel shutoff can utilized larger-capacity tank fuel pressure 30 40 laps before pit stop will allow constant needle valve setting Finally find putting tank underneath wing additional silicone damping can used vibra tion-free tank attachment possible putting silicone 6n top section tank building plywood floor particular underside wing area help dampen vibration New products have just seen three new propeller pitch gauges produced Walt Perkins Shadow Racing F IDLflULIL~ three styles Team Race Style Style II The Team Race pitch gauge measures EEUEBIE -in pitch increments designed props 8-in diameter pitches 4 8 Style props 12-in 70 cowls 9 wheelpants tar Sig Pica diameter pitches 3 15 Top-Flue Jemco Nosen Pilot Stattord Radlals BehrensGarmhausen W E Tech andutherkilsand half-pitch increments Style II plans One-piece laminated construction handlaid 24-in diameter propellers 4 14-in liberglass strong lightweight Send BASE tor pitch A-in pitch increments price list please include names models interested parts tar call between DAM -gauges lighter weight 9 PM EDT tor intormatlon COD ordering Wecompact facilitate transportation hope hear youlfield use have permanently photo IBERGLASS 703 890-6017etched scales will rub off gauges can ordered meas jU4ERure pusher props well tractor Opt MA RI Ba 530 Goodvew VA 24095 Continued page 16t 164 Model Aviation FULL LINE METAL SPECIALISTS NEW FOURMOST PRODUCTS! FOURMOST RECOIL TUBING four foot length super-tough fuel-proof urethane tubing pre-formed FOUR-INCH COIL allows placement field box can convenient distance aircraft boat After use tubing will retract its earlier space-saving form I1 ~i z price$3 95 Xr Vos WE NAVE THE FITTINc3 SOLUTION ORsmallSIze 1/1610Price *150 1 Tee 2 Elbows Pen Bladder Tee UcT 4040 24th Ave Forest Grove OR 97116 FOURM~i PRODTele hone 503 3572732 propellers simple change pitch scale also have quick-release feature speed prop changing blade other can obtain information writing Walt Perkins Shadow Racing Inc 3421 Southeast 28th Court Ocala FL 32671 As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 CL Speed/Hempel Continued page 73 ing model builder Hobbypoxy new product introduced best grainfiller youll ever use Its called Fast Fill because dries fast sands fast fills fast Its single-component air-dry material means dont mix two parts together Just open can its ready use Stir up add little thinner like Hobbypoxy thinner course brush directly bare balsa Fast Fill penetrates seals fills shot Itll dry before know it sands smoothly easily load ing paper Two three coats need completely fill grain Fast Fill compatible hobby paints including dopes enamels ure thanes epoxies Its local hobby shop now go get some free information entire line finishing materials write Hobby poxy Products Division Pettit Paint Company Inc 36 Pine Street P0 Box 378 Rockaway NJ 07866 recent Hobby Industry Associa tion Show noticed new set flying lines Sullivan Products lines made Keviar 29 properties similar used electromechanical cables cordage ballistic fabrics sewing thread parachutes webbing sail cloth Kevlar registered trademark DuPonts high-temperatureresistant araniid fibers unique combination toughness extra-high tenacity modulus lines developed strong er 018 stainless steel cable thing smaller Sullivan recommends using Kevlar lines place 018 smaller cable recommend tying knots lines Also will bend kink resonate engineering tests conducted University Maryland Instron Universal Testing Machine Obvi ously test data can vary sample sample figures indicate consid erable increase strength over steel lines Also price right Mail SASE Sullivan Products P0 Box 5166 North Haven Street Baltimore MD 21224 information %A engine parts modelers have written find out can locate blank Cox 049 cylinders have available plus other Cox 049 engine parts Also have new case chrome shaft setup infor mation send SASE P&G Metal Shop C/O Gene Hempel address given below write manufacturer con cerning products would please indi cate read about fine products Gene Hempels CL Speed column Model Aviation magazine Gene Hempel 301 N Yale Dr Garland TX 75042 Mandarin/Ruggiero Continued page 78 Sand smooth round section Align wing fuselage epoxy thoroughly being sure work plenty epoxy joints Reinforce inside wing-fuselage joint fiberglass tape scrap balsa sure left wing panel i longer right Glue h-in cockpit floor Glue fixed flaps place being sure MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per order M95 ec CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Thstorl McCoy TaIpan 40 MJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available emeedte Wtdds B-70 Sport Free Flight 4% C Sheet Balsa Construction 0 Builds Less 4 Hours C Flys LimIted Area e 6 Long 020-049 Engine Included See Local Hobbie Dealer Send $1795 4aes Wed4 PO Box 804 Folsom Calif 95630 cllt Re. Add sales Tea InquIrIes InvIted 166 Model Aviation FUEL LINE PIPING PROBLEM Size 3/32 0PrIce *200LARGE 1 Tee Elbow 1 union i Plug RJL Industries ox 5654 dena CA 91107 Phone 818 359-0016