MODIFIED FM Team Race engines will first subject month Although isnt lot interest Team Racing US maybe can generate greater degree excite ment very challenging event Ive comments about recent arti cle July 90 issue concerning Team Racing engine modifications US 1990 FM Team Race teams Willoughby/Oge using two heavily modified engines upcoming CL World Championships Newcomers subject FM Team Racing need know engines must 25cc 1525 cu displacement less models limited very small fuel capacity 7cc about 24 fluid ounces diesel engines universal choice fliers give best fuel economy modified engines shown therefore diesels first engine made crankcase Stewart Willoughby acquired Rus sian 88 champs Stewart machined backplate phenolic plastic uses K&B rotary valve running bronze bushing keep backplate assembly light possible engine front-exhaust AAC aluminum/al uminum/chrome aluminum piston running chrome-plated aluminum cylinder linerEd bore/stroke ratio 15/14mm frontexhaust engines have become quite popular Europe used almost universally Russian teams Basically diesels run extremely hot placing hot exhaust side engine toward front gets greatest exposure cooling air keeps cooler reduces cylinder thermal dis tortion exhaust gases arent blown engine significant extent since propwash velocity region very low compared velocity expelled exhaust gas second engine heavily modified Nel son 15 basically standard rearexhaust Nelson crankcase reversed crankshaft housing has cut off stock backplate machined press fitted housing originally located An all-steel front housing using standard Nelson bearings crankshaft mounted backplate formerly bolted onto engine will notice Russian engine has mounting lug crankcase itself other mounting lug well forward bolt-on front end modified Nelson uses standard two-bolt lugs attached crankcase Stewart calls front-stack Nelson Noslen Nelson spelled backwards Ive included photos both engines Southwestern Regionals Cholla Chop pers invitational meet held April 21-22 Continued page 170 Left Noslen 15 Team Race engine exhaust stack regular Nelson has re versed front shaft unit machined fit backplate mounting screws Right Russian case AAC crankcase phenolic machined rear cover using K&B 15 rotor Mount ing lugs located engine casting front shaft housing helping reduce vibration October 1990 61 Conoi Line Racing John Ballard 10102 Klmblewick Dr Louisville KY 40223 Glass II Mouse runners Cholla Choppers Annual invitational Meet held April 21-22 Left right Mike Fox Los Angeles CA Chris Peter Tucson AZ Dave Reynolds Tucson AZ An original-design Class Mouse Racer Gabe Manfredi metal engine mount adds front-end stability Note V-tail stab SIx-year-ola Hussell Whitney prepares take off dad handles pitting Plane Buster uses Fox 19 engine Charles Barnes Sr Fort Lauderdale FL AMA Slow Rat K&B 58 Note large Harrys Heavy Hub prop nut youre catching plane big engine spinning prop helps have big round hub grab rather pointy flying short-coupled moments ample control surfaces make AT-6 highly re sponsive airplane fly widespaced handle have found need tune down control movements Once test flight over let winds blow True lineage AT-6 good trainer fun fly CL Racing/Ballard Continued page 61 1990 Tucson AZ Events interest us Rac ers Class II Mouse Race Limited Sport Rac ing Texas Quickie Rat Im including photos some winners respective events Annual Rebel Rally recently attended 30th annual Rebel Rally Control Line contest held Jacksonville FL contest held over weekend Most CL events flown including Florida Slow Rat Mouse Race Texas Quickie Lil Wizard Slow Rat kids contest numerous entries some participants young six years fine Junior pilots Russell Whitney am enclosing photo him flying Florida Slow Rat Another photo shows Lickety Split Slow Rat flown Charles Barnes Sr Ft Lauderdale FL uses K&B 58cc engine Look closely photo youll see engine mounted large aluminum plate mini mizes engine vibration steadies fuel flow engine Charles uses swing-weight carbu retor chokes engine ground opens up full bore air Dick Lambert practicing Scale Racers found hot humid air quite similar what expect find forthcoming AMA Nats Illinois found Scale Race engines must turn 27000 rpm ground propeller diameter 6 6% seemed just right smaller di ameter prop will course allow engine turn rpm does pull airplane properly also tried new Nelson heavy-duty onepiece glow plug found distortion and/or frosting element virtually nonexis tent ran plugs almost 300 laps 005 head clearance ~ HANDLING CHARGE Check order Credit Card order $490 COD Order $790 I2 problems element appears hold up much better wire ones used first two pro duction runs particular plug test ing because earlier report heavyduty plug did develop enough heat may case extremely cool day ever temperature high eighties 65% relative humidity plug works very satisfactorily Superfast photos shows Gabe Man fredis Class Mouse Racer turns times five minutes flat less Mouse racer features some unique characteristics profile body laminated piece %-in plywood drilled lightening holes sur faced two sheets very light balsa fin ish extremely sleek wing uses very soft balsa lightweight basswood spar l/ basswood veneer bottom wing added strength resulting flat-bottomed wing extremely light tail piece hard 1A6 balsa Note engine mounts onto thick metal plate reduces engine vibration gives extra margin speed engine uses left handed crankshaft propeller rotates direction opposite what normally see minimize adverse effects engine torque trying roll model toward pilot during takeoff plane gets off very quickiy has excellent flying characteristics under windy conditions As always solicit ideas comments photos use whenever possible really appreciate effort make sending CL Aerobatics/McMiIIan Continued page 62 coarse sandpaper better adhesion spread thin coat Vaseline hinge barrels epoxy wont get Tech tip Lubricating control system point cannot overlook requirement somewhat hidden unless think about little Lubricating part picture Youre asking lubricant penetrate bellcranks bearing points form coating basically stay put perform its function life plane well hope several years Now thats tall order Continued page 174 Em Stock NoDescriptionPriceAmount ITo order ____________ 11 __ I I ____ Sub Total 7% Tax TN Onlyuse Handling ZIIIII order TOTALblank uuruaaStnteZip... call Exp Dnte615 373-1444 MA 170 Model Aviation ElMasterCard ElVisa [JAmerExp Card No IEShip CODElMy Check enclosed ame Street Address City State Zip
Edition: Model Aviation - 1990/10
Page Numbers: 61, 170
Edition: Model Aviation - 1990/10
Page Numbers: 61, 170
MODIFIED FM Team Race engines will first subject month Although isnt lot interest Team Racing US maybe can generate greater degree excite ment very challenging event Ive comments about recent arti cle July 90 issue concerning Team Racing engine modifications US 1990 FM Team Race teams Willoughby/Oge using two heavily modified engines upcoming CL World Championships Newcomers subject FM Team Racing need know engines must 25cc 1525 cu displacement less models limited very small fuel capacity 7cc about 24 fluid ounces diesel engines universal choice fliers give best fuel economy modified engines shown therefore diesels first engine made crankcase Stewart Willoughby acquired Rus sian 88 champs Stewart machined backplate phenolic plastic uses K&B rotary valve running bronze bushing keep backplate assembly light possible engine front-exhaust AAC aluminum/al uminum/chrome aluminum piston running chrome-plated aluminum cylinder linerEd bore/stroke ratio 15/14mm frontexhaust engines have become quite popular Europe used almost universally Russian teams Basically diesels run extremely hot placing hot exhaust side engine toward front gets greatest exposure cooling air keeps cooler reduces cylinder thermal dis tortion exhaust gases arent blown engine significant extent since propwash velocity region very low compared velocity expelled exhaust gas second engine heavily modified Nel son 15 basically standard rearexhaust Nelson crankcase reversed crankshaft housing has cut off stock backplate machined press fitted housing originally located An all-steel front housing using standard Nelson bearings crankshaft mounted backplate formerly bolted onto engine will notice Russian engine has mounting lug crankcase itself other mounting lug well forward bolt-on front end modified Nelson uses standard two-bolt lugs attached crankcase Stewart calls front-stack Nelson Noslen Nelson spelled backwards Ive included photos both engines Southwestern Regionals Cholla Chop pers invitational meet held April 21-22 Continued page 170 Left Noslen 15 Team Race engine exhaust stack regular Nelson has re versed front shaft unit machined fit backplate mounting screws Right Russian case AAC crankcase phenolic machined rear cover using K&B 15 rotor Mount ing lugs located engine casting front shaft housing helping reduce vibration October 1990 61 Conoi Line Racing John Ballard 10102 Klmblewick Dr Louisville KY 40223 Glass II Mouse runners Cholla Choppers Annual invitational Meet held April 21-22 Left right Mike Fox Los Angeles CA Chris Peter Tucson AZ Dave Reynolds Tucson AZ An original-design Class Mouse Racer Gabe Manfredi metal engine mount adds front-end stability Note V-tail stab SIx-year-ola Hussell Whitney prepares take off dad handles pitting Plane Buster uses Fox 19 engine Charles Barnes Sr Fort Lauderdale FL AMA Slow Rat K&B 58 Note large Harrys Heavy Hub prop nut youre catching plane big engine spinning prop helps have big round hub grab rather pointy flying short-coupled moments ample control surfaces make AT-6 highly re sponsive airplane fly widespaced handle have found need tune down control movements Once test flight over let winds blow True lineage AT-6 good trainer fun fly CL Racing/Ballard Continued page 61 1990 Tucson AZ Events interest us Rac ers Class II Mouse Race Limited Sport Rac ing Texas Quickie Rat Im including photos some winners respective events Annual Rebel Rally recently attended 30th annual Rebel Rally Control Line contest held Jacksonville FL contest held over weekend Most CL events flown including Florida Slow Rat Mouse Race Texas Quickie Lil Wizard Slow Rat kids contest numerous entries some participants young six years fine Junior pilots Russell Whitney am enclosing photo him flying Florida Slow Rat Another photo shows Lickety Split Slow Rat flown Charles Barnes Sr Ft Lauderdale FL uses K&B 58cc engine Look closely photo youll see engine mounted large aluminum plate mini mizes engine vibration steadies fuel flow engine Charles uses swing-weight carbu retor chokes engine ground opens up full bore air Dick Lambert practicing Scale Racers found hot humid air quite similar what expect find forthcoming AMA Nats Illinois found Scale Race engines must turn 27000 rpm ground propeller diameter 6 6% seemed just right smaller di ameter prop will course allow engine turn rpm does pull airplane properly also tried new Nelson heavy-duty onepiece glow plug found distortion and/or frosting element virtually nonexis tent ran plugs almost 300 laps 005 head clearance ~ HANDLING CHARGE Check order Credit Card order $490 COD Order $790 I2 problems element appears hold up much better wire ones used first two pro duction runs particular plug test ing because earlier report heavyduty plug did develop enough heat may case extremely cool day ever temperature high eighties 65% relative humidity plug works very satisfactorily Superfast photos shows Gabe Man fredis Class Mouse Racer turns times five minutes flat less Mouse racer features some unique characteristics profile body laminated piece %-in plywood drilled lightening holes sur faced two sheets very light balsa fin ish extremely sleek wing uses very soft balsa lightweight basswood spar l/ basswood veneer bottom wing added strength resulting flat-bottomed wing extremely light tail piece hard 1A6 balsa Note engine mounts onto thick metal plate reduces engine vibration gives extra margin speed engine uses left handed crankshaft propeller rotates direction opposite what normally see minimize adverse effects engine torque trying roll model toward pilot during takeoff plane gets off very quickiy has excellent flying characteristics under windy conditions As always solicit ideas comments photos use whenever possible really appreciate effort make sending CL Aerobatics/McMiIIan Continued page 62 coarse sandpaper better adhesion spread thin coat Vaseline hinge barrels epoxy wont get Tech tip Lubricating control system point cannot overlook requirement somewhat hidden unless think about little Lubricating part picture Youre asking lubricant penetrate bellcranks bearing points form coating basically stay put perform its function life plane well hope several years Now thats tall order Continued page 174 Em Stock NoDescriptionPriceAmount ITo order ____________ 11 __ I I ____ Sub Total 7% Tax TN Onlyuse Handling ZIIIII order TOTALblank uuruaaStnteZip... call Exp Dnte615 373-1444 MA 170 Model Aviation ElMasterCard ElVisa [JAmerExp Card No IEShip CODElMy Check enclosed ame Street Address City State Zip
