Radio Control Pylon Racing Bill Hager BY NOW should have some races under belts Some getting ready 87 Nats held Lincoln Municipal Airport Lincoln NE July 11-19 year added Q500 event should prove interesting didnt like flying sun evening will flying mornings Anyway interest year should have really good turnout Whenever can try pass items information might help Racer have anything might interest other fliers send will put column Q500 Racer some engine information John Kilsdonk 1987 Supertigre/Como 40 After almost seven years major changes 1987 model Supertigre S-40 has undergone some changes assume changes similar Como 40 also External appearance has changed due sharper coarser bead-blasting crank case engines have new carburetor body about 200 wider has corre spondingly longer rotating barrel However venturi diameter unchanged carburetor also has rubber boot right side introduced other carburetors year ago other obvious external change new swing-arm two-piece muffler Internally engines have some major changes feature dramatically reduced exhaust timing slightly reduced bypass crankshaft timing After testing engines appears changes may geared towards sport flier might want run larger prop Another less obvious conclu sion might tried make engine like Rossi just speculation part apparent limitation matching Rossis bypass timing might have caused crankcase casting An interesting exercise compare dimensions Rossi old new Supertigres Old S-40 87 S-40 Rossi40 Exhaust Timing157 Bypass Timing124 Boast Port Timing110 crank Open44 ABC Crank Closed60 ATC Total Crank Duration196 Carb Bore350 MufflerOutlelDiameter 300 Muffler Volume90cc 145147 120130 110130 39 ABC 39 ABC 51 ATC 52 ATC 192193 350 in.300 300 in-86-94cc following performance tests run new swing-arm muffler evaluate its characteristics muffler tested both new 5-40 older Como 40 case rpm given rpm/l000 Test No 1 Muffler Es5d Closest Poso 1 1 175175174 173 162163 143142 Prop 0 New ST S-40 174174 B161 C143 Old Como 40-S B C 178 160 140 following test run evaluate performance old muffler evaluate new ST 5-40 comparison older Como 40-S Once again engine rpm given rpm/i 000 listed ST/Como Test No 2 Prop 177/184 Prop B 164/164 Prop C 146/140 next test run investigate effects Rossi muffler compare new ST S-40 Rossi Engine rpm rpm/l 000 listed ST/Rossi Test No 3 Prop 173/191 Prop B 160/173 Prop C 140/160 Conclusions has lot con fusion centered around recent changes made Supertigre Como Its hope above information will clear some up Additional confusion occurs result ST talking about tuneable Tiger Paw muffler instructions new engines Please note Tiger Paw muffler optional item must purchased separately version Magic Muffler also twopiece assembly right-angle header pipe similar regular tuned pipe separate expansion chamber header pipe can shortened provide tuning new muf fler shipped engines called swing-arm does appear tuneable 1 new standard ST/Como muffler tuneable Test No 1 2 performance new ST/Como engines same previous models Tests Nos 1 2 3 new ST/Como swing-arm muffler roughly equal previous standard muffler Tests Nos 1 2 4 Rossi muffler does work well stock ST muffler ST Tests Nos 2 3 5 Despite timing changes made incor porate Rossi timing new ST/Como 40s Rossi still appears hold decided advantage Test No 3 Editors note Please remember tests run using sample engine experience modelers performance can vary widely between different samples engines same manu facture model Time will tell whether John Kilsdonks test results statistically mean ingful RMcM ran interesting poem composed Brian Pate memphis Prop Busters Club Ode Flagmen Twas day race round field flagmen crouched eyes apeeled Theyd hours feet gone numb theyd called dishonest blind just plain dumb stood weeds away fun racers came flagged Cause CD frowned sald Boys right guy gets beat hell surely want fight standing out taking flak give some chili send right back boanies mud spent whole morning muttered complalnts shouted dire warnings Dont mess up agaln cause can see plaln day much better tho far far away So answer hesitation fear theyre darn good need us out here? Q500 some engine tips Irv Thurrott taken NEPRO Newsletter 1 Remove engine box carefully remove backplate front housing cylinder head also carburetor 2 Pour acetone glass containerabout three inches deep use adequate ventilation latex glovesContinued page 154 Northern Kentuckys Flying Cardinals Club recently held theirfirstO500 racehad much fun planning schedule least monthi Folks photo race participants L-R Dennis McDaniel Barry Anderson first place Robert Gayner third place Joe Ruh second place Kenny Points 54 Model Aviation somewhere Twill some time however before therell full-blown Scale Big-Bird Internats really shake out new FAI rules Italy 88 therell probably Giant event Canada 1990 biggest best news Paris removal engine displacement restrictions increase allowable model weight 15-lbplus should go long way toward making international Scale class models FAI Scale/AMA Precision Scale bunch attractive potential competitors wouldnt take too much effort create true scale Big Bird under revised rules just received report swell new idea Leo Ford editor Hangar Flyer newsletter Colorado Dawn Patrol IMAA Chapter 90 sent 31 photographs Chuck Nelson Tommy Meyer processed Tom Ryan pictures taken Chapter 90s Winter Project Reviewsomething entirely new different exciting Sunday March 15 everybody Chapter brought his/her winters project display Waynes Automotive beautiful downtown Denver talking about thing set drawings models ready crank take off Twas ultimate show-and-tell super-neat way reinspire troops midst winter building season also opportunity present building seminars inspired idea other clubs/chapters would well copy next year weather agin us Ryan wIll soon have wheels sincere thanks Bob Lonseth Sylvania OH Harry Apoian Rolling Hills CA Bob pointed out Caterpillar tractors have large 0-rings part Duo-Cone seals might suitable tires homemade wheels Harry noted 6-in wheels scale configuration commercially available Germany Thanks Bob Harry rest wrote potential solutions Ryan wheel problem Keep fingers out prop fire extinguisher close hand batteries charged Giant Scale bird safe flying condi tionand well back next month new idea three John de Vries 4610 MoffatLn Colorado Springs CO 80915 RC Pylon Racing/Hager Continued page 54 3 Submerge fronthousing swish crank shaft listening/feeling rough spots may indicate presence metal particles Re peat process until crankshaft spins freely 4 Apply Marvel Oil liberally bed rings crankshaft 5 same thing other parts 6 Reassemble enginehead-bolt torque should 7 point onward engine must kept clean wrap cotton 8 Break-in procedure Mount engine Q500 aircraft preferably using metal engine mount Affix 9 x 6 Master Airscrew prop en carburetor idle screw two turns present position Open main needle valve five turns ground no muffler possible Run engine very rich minute let cool repeat process three times engine running cool can hold cylinder head its running Break-in procedure air Install muffler sure engine set very rich still flyable Low throttle should kill en gine due overly rich idie setting Fly enginethree four flights shallow climbs dives mostly flat gentle turns After four five flights begin doing large reverse Cuban Eights climb 200 roll inverted large de loop 200 climb opposite direction etc Continue process gradually leaning out engine adding stress flight maneuvers After 12 15 flights four five minutes per flight engine should race-ready Keys success 1 Cleanliness 2 Patience 3 little luck Hey gang really works alistofQ500 kits sources Thunder Q-11 Pauls Flying Stuff PO Box 121 Escondido CA 92025 phone 619 743-5458 China Clipper Model Tech available hobby stores T Tailed California Speed Pros 32221 Alipaz No 15 San Juan Capistrano CA 92675 phone 714 661-7430 Spickler Spickler Models available hobby stores Texas Outlaw Dickie Ritch 4101 Lar Houston TX 77025 phone 713 661-5458 Scat Cat Flite Line Models available hobby stores Yellow Jacket Mills Airplane Models 2868 Hambleton Rica MD 21140 phone 301 956-3308 See races Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC Helicopters/Jolly Continued page 55 practice autorotation both nice ma neuver perform also handy proficient should engine quit during flight some radios Throttle Hold switch activated collective controlled second set pitch curves described earlier resulting allowing greater range collective required descent landing disturbing feature newer Helicopter transmitters particular operating pulse-code modulation PCM seem operate significantly shorter period time singie charge past experience has prepared us accept Airborne battery requirements have also increased power directional-control gyro well fifth servo used control collective pitch main rotor can put quite strain batteries excellent cure provided SR Batteries manufactures high-capacity lightweight batteries replacements transmitter airborne battery packs packs will provide added flying time charge will make custom packs feel something extra-special needed no matter what batteries use its always good idea cycle periodically check capacities During typical day flying after having made several flights Ill also use expanded-scale voltmeter ESV test batteries under load make sure its still safe fly Helicopter radios may seem little complicated first little practice functions well others particular radio will become very easy logical use now features have become standard us chopper pilots wonder what manufacturers dreaming up next generation radios Products following manufacturers described article Airtronics Inc 11 Continued page 156 154 Model Aviation AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 5060 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 responding advertisers mention read about ModelAviation
Edition: Model Aviation - 1987/08
Page Numbers: 54, 154
Radio Control Pylon Racing Bill Hager BY NOW should have some races under belts Some getting ready 87 Nats held Lincoln Municipal Airport Lincoln NE July 11-19 year added Q500 event should prove interesting didnt like flying sun evening will flying mornings Anyway interest year should have really good turnout Whenever can try pass items information might help Racer have anything might interest other fliers send will put column Q500 Racer some engine information John Kilsdonk 1987 Supertigre/Como 40 After almost seven years major changes 1987 model Supertigre S-40 has undergone some changes assume changes similar Como 40 also External appearance has changed due sharper coarser bead-blasting crank case engines have new carburetor body about 200 wider has corre spondingly longer rotating barrel However venturi diameter unchanged carburetor also has rubber boot right side introduced other carburetors year ago other obvious external change new swing-arm two-piece muffler Internally engines have some major changes feature dramatically reduced exhaust timing slightly reduced bypass crankshaft timing After testing engines appears changes may geared towards sport flier might want run larger prop Another less obvious conclu sion might tried make engine like Rossi just speculation part apparent limitation matching Rossis bypass timing might have caused crankcase casting An interesting exercise compare dimensions Rossi old new Supertigres Old S-40 87 S-40 Rossi40 Exhaust Timing157 Bypass Timing124 Boast Port Timing110 crank Open44 ABC Crank Closed60 ATC Total Crank Duration196 Carb Bore350 MufflerOutlelDiameter 300 Muffler Volume90cc 145147 120130 110130 39 ABC 39 ABC 51 ATC 52 ATC 192193 350 in.300 300 in-86-94cc following performance tests run new swing-arm muffler evaluate its characteristics muffler tested both new 5-40 older Como 40 case rpm given rpm/l000 Test No 1 Muffler Es5d Closest Poso 1 1 175175174 173 162163 143142 Prop 0 New ST S-40 174174 B161 C143 Old Como 40-S B C 178 160 140 following test run evaluate performance old muffler evaluate new ST 5-40 comparison older Como 40-S Once again engine rpm given rpm/i 000 listed ST/Como Test No 2 Prop 177/184 Prop B 164/164 Prop C 146/140 next test run investigate effects Rossi muffler compare new ST S-40 Rossi Engine rpm rpm/l 000 listed ST/Rossi Test No 3 Prop 173/191 Prop B 160/173 Prop C 140/160 Conclusions has lot con fusion centered around recent changes made Supertigre Como Its hope above information will clear some up Additional confusion occurs result ST talking about tuneable Tiger Paw muffler instructions new engines Please note Tiger Paw muffler optional item must purchased separately version Magic Muffler also twopiece assembly right-angle header pipe similar regular tuned pipe separate expansion chamber header pipe can shortened provide tuning new muf fler shipped engines called swing-arm does appear tuneable 1 new standard ST/Como muffler tuneable Test No 1 2 performance new ST/Como engines same previous models Tests Nos 1 2 3 new ST/Como swing-arm muffler roughly equal previous standard muffler Tests Nos 1 2 4 Rossi muffler does work well stock ST muffler ST Tests Nos 2 3 5 Despite timing changes made incor porate Rossi timing new ST/Como 40s Rossi still appears hold decided advantage Test No 3 Editors note Please remember tests run using sample engine experience modelers performance can vary widely between different samples engines same manu facture model Time will tell whether John Kilsdonks test results statistically mean ingful RMcM ran interesting poem composed Brian Pate memphis Prop Busters Club Ode Flagmen Twas day race round field flagmen crouched eyes apeeled Theyd hours feet gone numb theyd called dishonest blind just plain dumb stood weeds away fun racers came flagged Cause CD frowned sald Boys right guy gets beat hell surely want fight standing out taking flak give some chili send right back boanies mud spent whole morning muttered complalnts shouted dire warnings Dont mess up agaln cause can see plaln day much better tho far far away So answer hesitation fear theyre darn good need us out here? Q500 some engine tips Irv Thurrott taken NEPRO Newsletter 1 Remove engine box carefully remove backplate front housing cylinder head also carburetor 2 Pour acetone glass containerabout three inches deep use adequate ventilation latex glovesContinued page 154 Northern Kentuckys Flying Cardinals Club recently held theirfirstO500 racehad much fun planning schedule least monthi Folks photo race participants L-R Dennis McDaniel Barry Anderson first place Robert Gayner third place Joe Ruh second place Kenny Points 54 Model Aviation somewhere Twill some time however before therell full-blown Scale Big-Bird Internats really shake out new FAI rules Italy 88 therell probably Giant event Canada 1990 biggest best news Paris removal engine displacement restrictions increase allowable model weight 15-lbplus should go long way toward making international Scale class models FAI Scale/AMA Precision Scale bunch attractive potential competitors wouldnt take too much effort create true scale Big Bird under revised rules just received report swell new idea Leo Ford editor Hangar Flyer newsletter Colorado Dawn Patrol IMAA Chapter 90 sent 31 photographs Chuck Nelson Tommy Meyer processed Tom Ryan pictures taken Chapter 90s Winter Project Reviewsomething entirely new different exciting Sunday March 15 everybody Chapter brought his/her winters project display Waynes Automotive beautiful downtown Denver talking about thing set drawings models ready crank take off Twas ultimate show-and-tell super-neat way reinspire troops midst winter building season also opportunity present building seminars inspired idea other clubs/chapters would well copy next year weather agin us Ryan wIll soon have wheels sincere thanks Bob Lonseth Sylvania OH Harry Apoian Rolling Hills CA Bob pointed out Caterpillar tractors have large 0-rings part Duo-Cone seals might suitable tires homemade wheels Harry noted 6-in wheels scale configuration commercially available Germany Thanks Bob Harry rest wrote potential solutions Ryan wheel problem Keep fingers out prop fire extinguisher close hand batteries charged Giant Scale bird safe flying condi tionand well back next month new idea three John de Vries 4610 MoffatLn Colorado Springs CO 80915 RC Pylon Racing/Hager Continued page 54 3 Submerge fronthousing swish crank shaft listening/feeling rough spots may indicate presence metal particles Re peat process until crankshaft spins freely 4 Apply Marvel Oil liberally bed rings crankshaft 5 same thing other parts 6 Reassemble enginehead-bolt torque should 7 point onward engine must kept clean wrap cotton 8 Break-in procedure Mount engine Q500 aircraft preferably using metal engine mount Affix 9 x 6 Master Airscrew prop en carburetor idle screw two turns present position Open main needle valve five turns ground no muffler possible Run engine very rich minute let cool repeat process three times engine running cool can hold cylinder head its running Break-in procedure air Install muffler sure engine set very rich still flyable Low throttle should kill en gine due overly rich idie setting Fly enginethree four flights shallow climbs dives mostly flat gentle turns After four five flights begin doing large reverse Cuban Eights climb 200 roll inverted large de loop 200 climb opposite direction etc Continue process gradually leaning out engine adding stress flight maneuvers After 12 15 flights four five minutes per flight engine should race-ready Keys success 1 Cleanliness 2 Patience 3 little luck Hey gang really works alistofQ500 kits sources Thunder Q-11 Pauls Flying Stuff PO Box 121 Escondido CA 92025 phone 619 743-5458 China Clipper Model Tech available hobby stores T Tailed California Speed Pros 32221 Alipaz No 15 San Juan Capistrano CA 92675 phone 714 661-7430 Spickler Spickler Models available hobby stores Texas Outlaw Dickie Ritch 4101 Lar Houston TX 77025 phone 713 661-5458 Scat Cat Flite Line Models available hobby stores Yellow Jacket Mills Airplane Models 2868 Hambleton Rica MD 21140 phone 301 956-3308 See races Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC Helicopters/Jolly Continued page 55 practice autorotation both nice ma neuver perform also handy proficient should engine quit during flight some radios Throttle Hold switch activated collective controlled second set pitch curves described earlier resulting allowing greater range collective required descent landing disturbing feature newer Helicopter transmitters particular operating pulse-code modulation PCM seem operate significantly shorter period time singie charge past experience has prepared us accept Airborne battery requirements have also increased power directional-control gyro well fifth servo used control collective pitch main rotor can put quite strain batteries excellent cure provided SR Batteries manufactures high-capacity lightweight batteries replacements transmitter airborne battery packs packs will provide added flying time charge will make custom packs feel something extra-special needed no matter what batteries use its always good idea cycle periodically check capacities During typical day flying after having made several flights Ill also use expanded-scale voltmeter ESV test batteries under load make sure its still safe fly Helicopter radios may seem little complicated first little practice functions well others particular radio will become very easy logical use now features have become standard us chopper pilots wonder what manufacturers dreaming up next generation radios Products following manufacturers described article Airtronics Inc 11 Continued page 156 154 Model Aviation AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 5060 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 responding advertisers mention read about ModelAviation