Control Line SPEED Gene Hem pel BREATHING SPELL contest season almost finished finally have some time gather notes together write months column first noteworthy item graphite ma terial Twinn-K Inc Graphite material developed aero space scientists needed lightweight ma terial would supply tremendous strength withstand intense heat hold its shape dimension Graphite can easily bonded modeling material including honeycomb foam wood etc Unbelievable strength obtained common modeling materials bonded graphite Any CyA adhesive can used Graphite Ultra-Ply now avaialble Twinn-K ranging thickness 007 120 material ideal building tuned pipes weight important factor Several new 15-size engines FAI Speed now market latest edition Cox Conquest ow appears K&B Cox 15* engine has redesigned incorporating ma chined rod piston old Conquest piston formed utilizing powder metal lurgy rod cast aluminum Another new engine OPS 15* Europe engine coming strong test shows approximately 500-1000 rpms lower best factory Rossis However OPS has little torque Rossi will allow prop pitch used subject 15-size engines received photos several new iesel engines new Master* 25cc diesel Cipolla Italy other prototype Walt Perkins new Cipolla excellent contender Nelson diesel Walt Perkins still working prototype did indicate en gine would available sale Halt-A engine parts modelers have written find out can locate blank Cox 049 cylinders order make cylinders available modelers have ordered several dozen blank cyl inders plus other Cox 049 engine parts also have new case chrome shaft setup information send SASE P&G Metal Shop Gene hempel 301 North Yale Drive Garland TX 75042 Another hot /2A item piston reset tool Davis Diesel tool must keep 049/051 top running condition information contact Bob Davis Davis Diesel Development next two Speed columns will cover rework Supertigre X-29 Nick Sher will also cover metal tank system sure renew membership AMA subscription Model Avi ation Heres wishing Speed fliers Happy Turkey Day Merry Christmas December 1983 73 names addresses Continued page 162 New Cipolla 15 diesel L Bayou Products isa hot competitor Nelson diesel Its avery pretty engine can get new OPS 15 R FAI Speed P&G Metal Shop Gene says doesnt rev quite high Rossibut has torque e OT WSIT UL has tinely-cratted pans Wedto see what looks like assembled K&Bs new Cox 15 FAI maybe FF Combat too mean-looking piece machinery lust sitting RI fiwnddO PROPELLERS Made 0 yeste bo color Go GRiSH No 1 propeller True helical pitch airfoil win-power 2 Blade Tractor 53each 54535~4Soc 6364SOc 747678SOc 848688Nc 9-4969-7 9810410-6SOc 11411-611881 12412512-61U 2 Blade Pusher 5 3 5-4 6364Oc 86SOc 98106*1 3 BladeTractor 53 6364 3 BladePusher 63SOc Sizes pitches styles needs AT YOUR DEALER / Blade Metallic Aluminum color Tractor76i 8668iZ 96 106104iSO Pusher106 1U substituting sheet built-up structures Beef-up built-ups' policy universal use dethermalizers has led necessity strengthening wing structures models seems land ing shock negative load anyone planned pre-DT days popular solutions problem adding spars upper surface wing usually three evenly-spaced strips /x-in deep needed equally-spaced first 30% chord Hmm things look awful lot like torbulaiors devices disturb airflow ever slightly effect increase lift multi-spars called de signers also help maintain airfoil shape reducing covering sag between ribs question comes up fairly often skull sessions does modi fication violate modification rule no question turbulators improve lift Some time ago Ive lost issue National Free Flight Society pub lished paper Symposium report effective placement turbulator cords upper surface Nordic glider wings author advocated trimming glider perfectly straight hand-glide dead-calm conditions preferably gymnasium Once achieved turhulator cord taped place wing other remaining unturbulated model hand glided observed turning ten dency turbulated wing would rise its additional lift causing model turn toward unturbulated wing cord position relocated test re peated final proper location turbulator determined position generating turn As further evidence affects multispars once Starduster 900 mediocre glide No amount trimming seemed increase glide performance GRISH LARGE WOOD PROPELLERS HARDWOOD too hard minimizes Thance costly plane engine damage True pitch airfoil fully finished balanced ready coating 3/B BOREALL SIZES IN18 57 6810 12 PITCH 20B 22 10 24 13 IN 8&1OPITCH 26 $16 inUBROS 0 ST JOHN INDIANA 46373 Out desperation removed covering installed three /x X /4 edge auxil iary spars spaced between leading edge main spar Result instant glide im provement Let make perfectly clear have heard before am condemning practice myself Im relating concern Contest Di rector could disquality such modified model welcome comments subject New kits Old-Timer modelers would never consider building kit some its matter pride others its selec tion wood deters hut us finding free time getting little scar cer year kits substantially reduce building time years P&W Models has pro ducing partial kits selected Old-Timers case wondering what partial kit simply curved pans ribs formers wing tips rudder outline etc modeler supplies strip wood sheet stock local hobby shop Hobby Horn 15173 Moran St PO Box 2212 Westminister CA 92683 has carried P&W line some time Chit Sheet edited Bob Sliff has just announced four new P&W partial kits will also offer ing full kits some popular models circuit Lanzo Record Breaker 96-in span 1256 sq Megow Super Quaker 76-in span 746 sq Kloud King 66-in span Berkeley Brigadeer 58-in span 473 sq Most us have building projects list could ever hope build lifetime partial kits can get us little further down list Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 Two Profiles/Haught Continued oaae 69 rather extreme measure should used last resort effort takes build just models almost same required build both try both Whoever heard race chal lenger Miss Los Angeles has longer fuse lage longer motor run use balance out race Wind both models pin propellers Launch Miss Los Angeles first thenquicklythe Travel Air flight times patterns should about same Have own Bendix Trophy Race own backyard Hows fun Bet ter yet get whole club fun CL Speed/Hempel Continued paqe 73 products mentioned months Speed column Master 25cc Cipilla 15 diesel available Bayou Products PO Box 8628 New Orleans LA 70182 Phone 1-800-535-2568 Graphite Ultra-Ply avail able Twinn-K Inc PO Box 31228 Indianapolis IN 46231 K&B Ccx 15 avail able K&B Manufacturing 12152 Woodruff Ave. Downey CA 90241 Piston Reset Tool available Davis Diesel De velopment PO Box 141 Milford CT 06460 OPS 15 available P&G Metal Products 301 N Yale Dr Garland TX 75042 Gene Hempel 301 N Yale Dr Garland TX 75042 Shopping/Young Continued oaae 80 pay grin disap pearing forked over $20 bill knowing borrow spouses never repay As left store noticed wife now wide grin face asked Whats funny dear re plied Sometimes dont realize need things Im glad came along tonight Next time think Ill stay home watch ball game boob tube CL Scale/Boss Continued page 71 models Convair XF-92A deltawing research aircraft other Grumman F9F-2 Panther Jetnot orig inal Mefhanix Illustrated design hut own Both models powered Dyna Jet engines weigh about 6 lb built scale equals ft provides models 31- 40-in wingspans respectively Both models fly ex tremely well attain speeds 75-90 mph Continued page 164 162 Model Aviation A RIGHT HAND TRACTOR
Edition: Model Aviation - 1983/12
Page Numbers: 73, 162
Edition: Model Aviation - 1983/12
Page Numbers: 73, 162
Control Line SPEED Gene Hem pel BREATHING SPELL contest season almost finished finally have some time gather notes together write months column first noteworthy item graphite ma terial Twinn-K Inc Graphite material developed aero space scientists needed lightweight ma terial would supply tremendous strength withstand intense heat hold its shape dimension Graphite can easily bonded modeling material including honeycomb foam wood etc Unbelievable strength obtained common modeling materials bonded graphite Any CyA adhesive can used Graphite Ultra-Ply now avaialble Twinn-K ranging thickness 007 120 material ideal building tuned pipes weight important factor Several new 15-size engines FAI Speed now market latest edition Cox Conquest ow appears K&B Cox 15* engine has redesigned incorporating ma chined rod piston old Conquest piston formed utilizing powder metal lurgy rod cast aluminum Another new engine OPS 15* Europe engine coming strong test shows approximately 500-1000 rpms lower best factory Rossis However OPS has little torque Rossi will allow prop pitch used subject 15-size engines received photos several new iesel engines new Master* 25cc diesel Cipolla Italy other prototype Walt Perkins new Cipolla excellent contender Nelson diesel Walt Perkins still working prototype did indicate en gine would available sale Halt-A engine parts modelers have written find out can locate blank Cox 049 cylinders order make cylinders available modelers have ordered several dozen blank cyl inders plus other Cox 049 engine parts also have new case chrome shaft setup information send SASE P&G Metal Shop Gene hempel 301 North Yale Drive Garland TX 75042 Another hot /2A item piston reset tool Davis Diesel tool must keep 049/051 top running condition information contact Bob Davis Davis Diesel Development next two Speed columns will cover rework Supertigre X-29 Nick Sher will also cover metal tank system sure renew membership AMA subscription Model Avi ation Heres wishing Speed fliers Happy Turkey Day Merry Christmas December 1983 73 names addresses Continued page 162 New Cipolla 15 diesel L Bayou Products isa hot competitor Nelson diesel Its avery pretty engine can get new OPS 15 R FAI Speed P&G Metal Shop Gene says doesnt rev quite high Rossibut has torque e OT WSIT UL has tinely-cratted pans Wedto see what looks like assembled K&Bs new Cox 15 FAI maybe FF Combat too mean-looking piece machinery lust sitting RI fiwnddO PROPELLERS Made 0 yeste bo color Go GRiSH No 1 propeller True helical pitch airfoil win-power 2 Blade Tractor 53each 54535~4Soc 6364SOc 747678SOc 848688Nc 9-4969-7 9810410-6SOc 11411-611881 12412512-61U 2 Blade Pusher 5 3 5-4 6364Oc 86SOc 98106*1 3 BladeTractor 53 6364 3 BladePusher 63SOc Sizes pitches styles needs AT YOUR DEALER / Blade Metallic Aluminum color Tractor76i 8668iZ 96 106104iSO Pusher106 1U substituting sheet built-up structures Beef-up built-ups' policy universal use dethermalizers has led necessity strengthening wing structures models seems land ing shock negative load anyone planned pre-DT days popular solutions problem adding spars upper surface wing usually three evenly-spaced strips /x-in deep needed equally-spaced first 30% chord Hmm things look awful lot like torbulaiors devices disturb airflow ever slightly effect increase lift multi-spars called de signers also help maintain airfoil shape reducing covering sag between ribs question comes up fairly often skull sessions does modi fication violate modification rule no question turbulators improve lift Some time ago Ive lost issue National Free Flight Society pub lished paper Symposium report effective placement turbulator cords upper surface Nordic glider wings author advocated trimming glider perfectly straight hand-glide dead-calm conditions preferably gymnasium Once achieved turhulator cord taped place wing other remaining unturbulated model hand glided observed turning ten dency turbulated wing would rise its additional lift causing model turn toward unturbulated wing cord position relocated test re peated final proper location turbulator determined position generating turn As further evidence affects multispars once Starduster 900 mediocre glide No amount trimming seemed increase glide performance GRISH LARGE WOOD PROPELLERS HARDWOOD too hard minimizes Thance costly plane engine damage True pitch airfoil fully finished balanced ready coating 3/B BOREALL SIZES IN18 57 6810 12 PITCH 20B 22 10 24 13 IN 8&1OPITCH 26 $16 inUBROS 0 ST JOHN INDIANA 46373 Out desperation removed covering installed three /x X /4 edge auxil iary spars spaced between leading edge main spar Result instant glide im provement Let make perfectly clear have heard before am condemning practice myself Im relating concern Contest Di rector could disquality such modified model welcome comments subject New kits Old-Timer modelers would never consider building kit some its matter pride others its selec tion wood deters hut us finding free time getting little scar cer year kits substantially reduce building time years P&W Models has pro ducing partial kits selected Old-Timers case wondering what partial kit simply curved pans ribs formers wing tips rudder outline etc modeler supplies strip wood sheet stock local hobby shop Hobby Horn 15173 Moran St PO Box 2212 Westminister CA 92683 has carried P&W line some time Chit Sheet edited Bob Sliff has just announced four new P&W partial kits will also offer ing full kits some popular models circuit Lanzo Record Breaker 96-in span 1256 sq Megow Super Quaker 76-in span 746 sq Kloud King 66-in span Berkeley Brigadeer 58-in span 473 sq Most us have building projects list could ever hope build lifetime partial kits can get us little further down list Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 Two Profiles/Haught Continued oaae 69 rather extreme measure should used last resort effort takes build just models almost same required build both try both Whoever heard race chal lenger Miss Los Angeles has longer fuse lage longer motor run use balance out race Wind both models pin propellers Launch Miss Los Angeles first thenquicklythe Travel Air flight times patterns should about same Have own Bendix Trophy Race own backyard Hows fun Bet ter yet get whole club fun CL Speed/Hempel Continued paqe 73 products mentioned months Speed column Master 25cc Cipilla 15 diesel available Bayou Products PO Box 8628 New Orleans LA 70182 Phone 1-800-535-2568 Graphite Ultra-Ply avail able Twinn-K Inc PO Box 31228 Indianapolis IN 46231 K&B Ccx 15 avail able K&B Manufacturing 12152 Woodruff Ave. Downey CA 90241 Piston Reset Tool available Davis Diesel De velopment PO Box 141 Milford CT 06460 OPS 15 available P&G Metal Products 301 N Yale Dr Garland TX 75042 Gene Hempel 301 N Yale Dr Garland TX 75042 Shopping/Young Continued oaae 80 pay grin disap pearing forked over $20 bill knowing borrow spouses never repay As left store noticed wife now wide grin face asked Whats funny dear re plied Sometimes dont realize need things Im glad came along tonight Next time think Ill stay home watch ball game boob tube CL Scale/Boss Continued page 71 models Convair XF-92A deltawing research aircraft other Grumman F9F-2 Panther Jetnot orig inal Mefhanix Illustrated design hut own Both models powered Dyna Jet engines weigh about 6 lb built scale equals ft provides models 31- 40-in wingspans respectively Both models fly ex tremely well attain speeds 75-90 mph Continued page 164 162 Model Aviation A RIGHT HAND TRACTOR
