Free Dur Jerryl Editors Note -deserved brea next two mon April issue Sandlot Free Fl ever out flyin ticing wished test contest because oni field up eliminam figure 1 Comp ME uIIj Kent dance fly competitors launcnin short number mini winning round c C 4 4 564 7ILi 4 4 57 dz unt mnforn t general use thos4 LII S 5 SA 59 50 6O 6O 5, 5 /arflfl 72 u/k ity tah man some agreement IIIL Liv utstand m aliv -in wix iesigned Jim flyi ossibi aram rob Boy 0% dii 7leaf DUBRO KWIK- HINGIE SLOTTER FOR LARGE AND SMALL HINGES THE ONLY UNIVERSAL SLOTTING TOOL THAT NOT ONLY CENTERS BUT GUIDES YOUR BLADE FOR PERFECTLY ALIGNEDHINGE SLOTS EVERY TIME BLADE AND BLADE AND black oxided hardened steel blades fit neatly no 2 x-acto knife handle work conjunction handy alignment jig features 3 interchangeable snap-on guides Two large small leaf hinges drilling 3 stan dard size holes match type hinge choose use C BALSA PICKER PRODUCTS INCORPORATED Pur 480 Bonner Road Wauconda1 Illinois 60084 USA mentioned crack-up cardtable local contest model rebuilt took first place 1977 Canadian Nationals demonstrating smooth take off like other biplane very stable flight pattern hope also will build model enjoy flying much have would like hear FF Duration continued page 57 aspect ratio curvature airfoil section thickness airfoil section wing could restated wing layout air foil what Table 1 essentially doc uments real secrets glider performance rate Table 1 may used Interim Great Wonderful Nordic Design Oracle & State-Of-TheArt Determiner until next design trend comes along Speaking Which Speaking state of-the-art Nordics District V VicePresident Jim McNeill has some arty fact Jim has zoological assortment decorative tailschickens hippos etc see photo also noting bamboo tail boom Jim enjoys h flying reflected artful approach tails chicken doesnt work out Jim can always change eagle con dor performance peacock NFFS Nouncement National Free Flight Society gears already motion get proverbial act together 79 looked-forward-to efforts Society annual 12th annual year NFFS Symposium Na tional Free Flight Society now soliciting papers 1979 NFFS Symposium held 1979 Nats Papers will published 1979 Symposium volume whether author able present paper personally Nats Papers should cover some aspect science art free flight models including tech nical studies practical design engineer ing applied models new unusual model aircraft developments historical items Both indoor outdoor free-flight modeling developments included Please send proposed papers Mr Rob ert P Dodds Box 436 Rancho Santa Fe CA 92067 Send title proposed paper together abstract 200 words or complete paper available Abstracts should submitted soon possible NFFS Nouncement No 2 Another Societys annual efforts also associated Natssponsoring/conducting Nats Unofficial Events thought 7-Up responsible Although Unofficial Events program has become somewhat traditional Nats planning and/or announcement some events past have sometimes late loose non-existent Terry Rimert NFFS 1979 Nats Un official Events Director volunteer tempting prevent past mistakes Terry puts trying get some events lined up time let people know going have can prepare Im looking people sponsor events people run events Nats sooner find out what can better So far John Pond has told going have Old Time FF Friday Old Time Banquet Fri day night will try schedule NFFS events conflict Rubber Speed will again offer prize buck per mph winner Tentatively Rubber Speed will Tuesday need someone sponsor/run Helicopter Autogyro nithopter Jumbo Scale Thompson Tro phy Races Embryo Endurance ROW P-30 Cargo few others Volunteers interested aiding Terry event sponsor event director event worker whatever contact him 367 Orange Avenue Baldwin FL 32234 cant helper least consider fly ing events Unofficial some really neat challenging unique fun official North Northwest definitely no fun lose airplane wander around aim lessly woods looking com pass could excellent aid searching February 1979 107 r Cat No 216 195 lost model properly used I-lowever compass doesnt much good dont know use As might somewhat embarassing ask structions compass use compet itor some people would rather eat worms ask help wouldnt how-to book nice Well book ex plains very simply some compass tech niques free fighters could use Over simplified fact See dog see cat see dog cat techniques book Expert Map Compass Orienteering Handbook Bjorn Kjellstrom Stackpole Books Bob Meuser 4200 Gregory St Oak land CA 94619 True helical pitch airfoil win-power 2 Blade Tractor 53each 545 35-4304 6364354 74767-8504 84868-8654 98104106854needs 11411-6118Si 12-412-512-65150 2 Blade PusherAT YOUR DEALER 5/ 3 5%4 6-36-4 354 3 Blade Pasher Metallic Aluminum 86885125 96 106 04 5150 Pusher106$150 FF Old Timer/Haught continued page 58 calibrated Flight performance Y & 0 props seems equal other brands although very difficult determine variables considered obtained nostalgic beauties Tom Cope 23262 SE 57th Street Route 3 Issaquab Washington 98027 lists along other items interest oldtimers Diameters range 8 18 pitches 4 8 range Tom tells Y & 0 props also available laminated wood prices right Ive also heard Mark Fechner 4456 W GRISH LARGE WOOD PROPELLERS HARDWOOD too hard minimizes costly plane 3145 So Salt Lake City Utah 84120 stocks Y & 0 props along hard get engine parts Rebuild Engine good original ignition engines getting harder harder find makes good sense get maxi mum life out ones have avail able Fortunately lapped piston cylinder assemblies have long lives exposed excessive dirt grit high-time engines still have good compression long after rest engine no longer serviceable cylinder-piston fit no longer ac ceptable possible have cylinder chrome plated old piston refitted provided engine has removable cyl inder head allowing access machining engine has integral head pretty much stuck common ailment old en gines worn main connecting rod bearings worn main bearings allow crankshaft wobble engine vi bration also allow leakage crank case compression vital proper fuel transfer 2-stroke-cycle engine Fabricating fitting new main rod bearings economical worth undertaking allows hours continued service old engine Broken mount lugs can repaired careful buildup metal using Heliarc welding process filing and/or machining back shape Incidentally common use electric starters can harmful older engines due lack thrust bearings capable absorbing inward pressure crank shaft reverse normal thrust load often born thin front surface main bearing wearing against back prop-drive washer Allowed continue procedure can lead crankpin machining groove rear crankcase cover several shops specializing model engine rework Some will work old-time engines couple will above mentioned Mark Fechner iL Machine Service John Lorbiecki 5847 N 67th Street Milwaukee Wiscon sin 53218 Anyone else willing work 108 Model Aviation Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground d Support AMA WINO SPAN 50 WING AREA 425 ENGINES 15-35 WEIGHT 34 LBS FAST BOXLOK CONSTRUCTION MUST FOR THE BEGINNER GREATEST B/C BASIC TRAINEB Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold themSHALL WE SAY MORE Andrrs Aircraft Model Co US Rte 1& North St Topsfield Mass 01983 887-8541 Price $3995 kit per dollar bar em CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049/051 Specialists brochure send 1 5C stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 O FLASH STARTING UNEaCELLED POWER LONGER tIPS iFD LOWEST DRAIN GLOW PLUGS 1417 SWANSON ASSOCIATES P0 ROT SIWATNP SEW SIsSY 5700 Ss POUTS 5PrQUflN~x srw 15555Y 050WW forflO PROPELLERS polyester boil color Go GRISH propeller Sizes pitches styles engine damage True pitch airfoil fully carved Crafts man addshis own final touches 3/B BORE ALL SIZES IN $7 6 B & 10 PITCH20B 2210 2413 NEW SIZE 8 PITCH26$16 inmmin BROS OKEN ST JOHN INDIANA 46373 RIGHT HAND TRACTOR
Edition: Model Aviation - 1979/02
Page Numbers: 56, 57, 107, 108
Free Dur Jerryl Editors Note -deserved brea next two mon April issue Sandlot Free Fl ever out flyin ticing wished test contest because oni field up eliminam figure 1 Comp ME uIIj Kent dance fly competitors launcnin short number mini winning round c C 4 4 564 7ILi 4 4 57 dz unt mnforn t general use thos4 LII S 5 SA 59 50 6O 6O 5, 5 /arflfl 72 u/k ity tah man some agreement IIIL Liv utstand m aliv -in wix iesigned Jim flyi ossibi aram rob Boy 0% dii 7leaf DUBRO KWIK- HINGIE SLOTTER FOR LARGE AND SMALL HINGES THE ONLY UNIVERSAL SLOTTING TOOL THAT NOT ONLY CENTERS BUT GUIDES YOUR BLADE FOR PERFECTLY ALIGNEDHINGE SLOTS EVERY TIME BLADE AND BLADE AND black oxided hardened steel blades fit neatly no 2 x-acto knife handle work conjunction handy alignment jig features 3 interchangeable snap-on guides Two large small leaf hinges drilling 3 stan dard size holes match type hinge choose use C BALSA PICKER PRODUCTS INCORPORATED Pur 480 Bonner Road Wauconda1 Illinois 60084 USA mentioned crack-up cardtable local contest model rebuilt took first place 1977 Canadian Nationals demonstrating smooth take off like other biplane very stable flight pattern hope also will build model enjoy flying much have would like hear FF Duration continued page 57 aspect ratio curvature airfoil section thickness airfoil section wing could restated wing layout air foil what Table 1 essentially doc uments real secrets glider performance rate Table 1 may used Interim Great Wonderful Nordic Design Oracle & State-Of-TheArt Determiner until next design trend comes along Speaking Which Speaking state of-the-art Nordics District V VicePresident Jim McNeill has some arty fact Jim has zoological assortment decorative tailschickens hippos etc see photo also noting bamboo tail boom Jim enjoys h flying reflected artful approach tails chicken doesnt work out Jim can always change eagle con dor performance peacock NFFS Nouncement National Free Flight Society gears already motion get proverbial act together 79 looked-forward-to efforts Society annual 12th annual year NFFS Symposium Na tional Free Flight Society now soliciting papers 1979 NFFS Symposium held 1979 Nats Papers will published 1979 Symposium volume whether author able present paper personally Nats Papers should cover some aspect science art free flight models including tech nical studies practical design engineer ing applied models new unusual model aircraft developments historical items Both indoor outdoor free-flight modeling developments included Please send proposed papers Mr Rob ert P Dodds Box 436 Rancho Santa Fe CA 92067 Send title proposed paper together abstract 200 words or complete paper available Abstracts should submitted soon possible NFFS Nouncement No 2 Another Societys annual efforts also associated Natssponsoring/conducting Nats Unofficial Events thought 7-Up responsible Although Unofficial Events program has become somewhat traditional Nats planning and/or announcement some events past have sometimes late loose non-existent Terry Rimert NFFS 1979 Nats Un official Events Director volunteer tempting prevent past mistakes Terry puts trying get some events lined up time let people know going have can prepare Im looking people sponsor events people run events Nats sooner find out what can better So far John Pond has told going have Old Time FF Friday Old Time Banquet Fri day night will try schedule NFFS events conflict Rubber Speed will again offer prize buck per mph winner Tentatively Rubber Speed will Tuesday need someone sponsor/run Helicopter Autogyro nithopter Jumbo Scale Thompson Tro phy Races Embryo Endurance ROW P-30 Cargo few others Volunteers interested aiding Terry event sponsor event director event worker whatever contact him 367 Orange Avenue Baldwin FL 32234 cant helper least consider fly ing events Unofficial some really neat challenging unique fun official North Northwest definitely no fun lose airplane wander around aim lessly woods looking com pass could excellent aid searching February 1979 107 r Cat No 216 195 lost model properly used I-lowever compass doesnt much good dont know use As might somewhat embarassing ask structions compass use compet itor some people would rather eat worms ask help wouldnt how-to book nice Well book ex plains very simply some compass tech niques free fighters could use Over simplified fact See dog see cat see dog cat techniques book Expert Map Compass Orienteering Handbook Bjorn Kjellstrom Stackpole Books Bob Meuser 4200 Gregory St Oak land CA 94619 True helical pitch airfoil win-power 2 Blade Tractor 53each 545 35-4304 6364354 74767-8504 84868-8654 98104106854needs 11411-6118Si 12-412-512-65150 2 Blade PusherAT YOUR DEALER 5/ 3 5%4 6-36-4 354 3 Blade Pasher Metallic Aluminum 86885125 96 106 04 5150 Pusher106$150 FF Old Timer/Haught continued page 58 calibrated Flight performance Y & 0 props seems equal other brands although very difficult determine variables considered obtained nostalgic beauties Tom Cope 23262 SE 57th Street Route 3 Issaquab Washington 98027 lists along other items interest oldtimers Diameters range 8 18 pitches 4 8 range Tom tells Y & 0 props also available laminated wood prices right Ive also heard Mark Fechner 4456 W GRISH LARGE WOOD PROPELLERS HARDWOOD too hard minimizes costly plane 3145 So Salt Lake City Utah 84120 stocks Y & 0 props along hard get engine parts Rebuild Engine good original ignition engines getting harder harder find makes good sense get maxi mum life out ones have avail able Fortunately lapped piston cylinder assemblies have long lives exposed excessive dirt grit high-time engines still have good compression long after rest engine no longer serviceable cylinder-piston fit no longer ac ceptable possible have cylinder chrome plated old piston refitted provided engine has removable cyl inder head allowing access machining engine has integral head pretty much stuck common ailment old en gines worn main connecting rod bearings worn main bearings allow crankshaft wobble engine vi bration also allow leakage crank case compression vital proper fuel transfer 2-stroke-cycle engine Fabricating fitting new main rod bearings economical worth undertaking allows hours continued service old engine Broken mount lugs can repaired careful buildup metal using Heliarc welding process filing and/or machining back shape Incidentally common use electric starters can harmful older engines due lack thrust bearings capable absorbing inward pressure crank shaft reverse normal thrust load often born thin front surface main bearing wearing against back prop-drive washer Allowed continue procedure can lead crankpin machining groove rear crankcase cover several shops specializing model engine rework Some will work old-time engines couple will above mentioned Mark Fechner iL Machine Service John Lorbiecki 5847 N 67th Street Milwaukee Wiscon sin 53218 Anyone else willing work 108 Model Aviation Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground d Support AMA WINO SPAN 50 WING AREA 425 ENGINES 15-35 WEIGHT 34 LBS FAST BOXLOK CONSTRUCTION MUST FOR THE BEGINNER GREATEST B/C BASIC TRAINEB Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold themSHALL WE SAY MORE Andrrs Aircraft Model Co US Rte 1& North St Topsfield Mass 01983 887-8541 Price $3995 kit per dollar bar em CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049/051 Specialists brochure send 1 5C stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 O FLASH STARTING UNEaCELLED POWER LONGER tIPS iFD LOWEST DRAIN GLOW PLUGS 1417 SWANSON ASSOCIATES P0 ROT SIWATNP SEW SIsSY 5700 Ss POUTS 5PrQUflN~x srw 15555Y 050WW forflO PROPELLERS polyester boil color Go GRISH propeller Sizes pitches styles engine damage True pitch airfoil fully carved Crafts man addshis own final touches 3/B BORE ALL SIZES IN $7 6 B & 10 PITCH20B 2210 2413 NEW SIZE 8 PITCH26$16 inmmin BROS OKEN ST JOHN INDIANA 46373 RIGHT HAND TRACTOR
Edition: Model Aviation - 1979/02
Page Numbers: 56, 57, 107, 108
Free Dur Jerryl Editors Note -deserved brea next two mon April issue Sandlot Free Fl ever out flyin ticing wished test contest because oni field up eliminam figure 1 Comp ME uIIj Kent dance fly competitors launcnin short number mini winning round c C 4 4 564 7ILi 4 4 57 dz unt mnforn t general use thos4 LII S 5 SA 59 50 6O 6O 5, 5 /arflfl 72 u/k ity tah man some agreement IIIL Liv utstand m aliv -in wix iesigned Jim flyi ossibi aram rob Boy 0% dii 7leaf DUBRO KWIK- HINGIE SLOTTER FOR LARGE AND SMALL HINGES THE ONLY UNIVERSAL SLOTTING TOOL THAT NOT ONLY CENTERS BUT GUIDES YOUR BLADE FOR PERFECTLY ALIGNEDHINGE SLOTS EVERY TIME BLADE AND BLADE AND black oxided hardened steel blades fit neatly no 2 x-acto knife handle work conjunction handy alignment jig features 3 interchangeable snap-on guides Two large small leaf hinges drilling 3 stan dard size holes match type hinge choose use C BALSA PICKER PRODUCTS INCORPORATED Pur 480 Bonner Road Wauconda1 Illinois 60084 USA mentioned crack-up cardtable local contest model rebuilt took first place 1977 Canadian Nationals demonstrating smooth take off like other biplane very stable flight pattern hope also will build model enjoy flying much have would like hear FF Duration continued page 57 aspect ratio curvature airfoil section thickness airfoil section wing could restated wing layout air foil what Table 1 essentially doc uments real secrets glider performance rate Table 1 may used Interim Great Wonderful Nordic Design Oracle & State-Of-TheArt Determiner until next design trend comes along Speaking Which Speaking state of-the-art Nordics District V VicePresident Jim McNeill has some arty fact Jim has zoological assortment decorative tailschickens hippos etc see photo also noting bamboo tail boom Jim enjoys h flying reflected artful approach tails chicken doesnt work out Jim can always change eagle con dor performance peacock NFFS Nouncement National Free Flight Society gears already motion get proverbial act together 79 looked-forward-to efforts Society annual 12th annual year NFFS Symposium Na tional Free Flight Society now soliciting papers 1979 NFFS Symposium held 1979 Nats Papers will published 1979 Symposium volume whether author able present paper personally Nats Papers should cover some aspect science art free flight models including tech nical studies practical design engineer ing applied models new unusual model aircraft developments historical items Both indoor outdoor free-flight modeling developments included Please send proposed papers Mr Rob ert P Dodds Box 436 Rancho Santa Fe CA 92067 Send title proposed paper together abstract 200 words or complete paper available Abstracts should submitted soon possible NFFS Nouncement No 2 Another Societys annual efforts also associated Natssponsoring/conducting Nats Unofficial Events thought 7-Up responsible Although Unofficial Events program has become somewhat traditional Nats planning and/or announcement some events past have sometimes late loose non-existent Terry Rimert NFFS 1979 Nats Un official Events Director volunteer tempting prevent past mistakes Terry puts trying get some events lined up time let people know going have can prepare Im looking people sponsor events people run events Nats sooner find out what can better So far John Pond has told going have Old Time FF Friday Old Time Banquet Fri day night will try schedule NFFS events conflict Rubber Speed will again offer prize buck per mph winner Tentatively Rubber Speed will Tuesday need someone sponsor/run Helicopter Autogyro nithopter Jumbo Scale Thompson Tro phy Races Embryo Endurance ROW P-30 Cargo few others Volunteers interested aiding Terry event sponsor event director event worker whatever contact him 367 Orange Avenue Baldwin FL 32234 cant helper least consider fly ing events Unofficial some really neat challenging unique fun official North Northwest definitely no fun lose airplane wander around aim lessly woods looking com pass could excellent aid searching February 1979 107 r Cat No 216 195 lost model properly used I-lowever compass doesnt much good dont know use As might somewhat embarassing ask structions compass use compet itor some people would rather eat worms ask help wouldnt how-to book nice Well book ex plains very simply some compass tech niques free fighters could use Over simplified fact See dog see cat see dog cat techniques book Expert Map Compass Orienteering Handbook Bjorn Kjellstrom Stackpole Books Bob Meuser 4200 Gregory St Oak land CA 94619 True helical pitch airfoil win-power 2 Blade Tractor 53each 545 35-4304 6364354 74767-8504 84868-8654 98104106854needs 11411-6118Si 12-412-512-65150 2 Blade PusherAT YOUR DEALER 5/ 3 5%4 6-36-4 354 3 Blade Pasher Metallic Aluminum 86885125 96 106 04 5150 Pusher106$150 FF Old Timer/Haught continued page 58 calibrated Flight performance Y & 0 props seems equal other brands although very difficult determine variables considered obtained nostalgic beauties Tom Cope 23262 SE 57th Street Route 3 Issaquab Washington 98027 lists along other items interest oldtimers Diameters range 8 18 pitches 4 8 range Tom tells Y & 0 props also available laminated wood prices right Ive also heard Mark Fechner 4456 W GRISH LARGE WOOD PROPELLERS HARDWOOD too hard minimizes costly plane 3145 So Salt Lake City Utah 84120 stocks Y & 0 props along hard get engine parts Rebuild Engine good original ignition engines getting harder harder find makes good sense get maxi mum life out ones have avail able Fortunately lapped piston cylinder assemblies have long lives exposed excessive dirt grit high-time engines still have good compression long after rest engine no longer serviceable cylinder-piston fit no longer ac ceptable possible have cylinder chrome plated old piston refitted provided engine has removable cyl inder head allowing access machining engine has integral head pretty much stuck common ailment old en gines worn main connecting rod bearings worn main bearings allow crankshaft wobble engine vi bration also allow leakage crank case compression vital proper fuel transfer 2-stroke-cycle engine Fabricating fitting new main rod bearings economical worth undertaking allows hours continued service old engine Broken mount lugs can repaired careful buildup metal using Heliarc welding process filing and/or machining back shape Incidentally common use electric starters can harmful older engines due lack thrust bearings capable absorbing inward pressure crank shaft reverse normal thrust load often born thin front surface main bearing wearing against back prop-drive washer Allowed continue procedure can lead crankpin machining groove rear crankcase cover several shops specializing model engine rework Some will work old-time engines couple will above mentioned Mark Fechner iL Machine Service John Lorbiecki 5847 N 67th Street Milwaukee Wiscon sin 53218 Anyone else willing work 108 Model Aviation Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground d Support AMA WINO SPAN 50 WING AREA 425 ENGINES 15-35 WEIGHT 34 LBS FAST BOXLOK CONSTRUCTION MUST FOR THE BEGINNER GREATEST B/C BASIC TRAINEB Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold themSHALL WE SAY MORE Andrrs Aircraft Model Co US Rte 1& North St Topsfield Mass 01983 887-8541 Price $3995 kit per dollar bar em CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049/051 Specialists brochure send 1 5C stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 O FLASH STARTING UNEaCELLED POWER LONGER tIPS iFD LOWEST DRAIN GLOW PLUGS 1417 SWANSON ASSOCIATES P0 ROT SIWATNP SEW SIsSY 5700 Ss POUTS 5PrQUflN~x srw 15555Y 050WW forflO PROPELLERS polyester boil color Go GRISH propeller Sizes pitches styles engine damage True pitch airfoil fully carved Crafts man addshis own final touches 3/B BORE ALL SIZES IN $7 6 B & 10 PITCH20B 2210 2413 NEW SIZE 8 PITCH26$16 inmmin BROS OKEN ST JOHN INDIANA 46373 RIGHT HAND TRACTOR
Edition: Model Aviation - 1979/02
Page Numbers: 56, 57, 107, 108
Free Dur Jerryl Editors Note -deserved brea next two mon April issue Sandlot Free Fl ever out flyin ticing wished test contest because oni field up eliminam figure 1 Comp ME uIIj Kent dance fly competitors launcnin short number mini winning round c C 4 4 564 7ILi 4 4 57 dz unt mnforn t general use thos4 LII S 5 SA 59 50 6O 6O 5, 5 /arflfl 72 u/k ity tah man some agreement IIIL Liv utstand m aliv -in wix iesigned Jim flyi ossibi aram rob Boy 0% dii 7leaf DUBRO KWIK- HINGIE SLOTTER FOR LARGE AND SMALL HINGES THE ONLY UNIVERSAL SLOTTING TOOL THAT NOT ONLY CENTERS BUT GUIDES YOUR BLADE FOR PERFECTLY ALIGNEDHINGE SLOTS EVERY TIME BLADE AND BLADE AND black oxided hardened steel blades fit neatly no 2 x-acto knife handle work conjunction handy alignment jig features 3 interchangeable snap-on guides Two large small leaf hinges drilling 3 stan dard size holes match type hinge choose use C BALSA PICKER PRODUCTS INCORPORATED Pur 480 Bonner Road Wauconda1 Illinois 60084 USA mentioned crack-up cardtable local contest model rebuilt took first place 1977 Canadian Nationals demonstrating smooth take off like other biplane very stable flight pattern hope also will build model enjoy flying much have would like hear FF Duration continued page 57 aspect ratio curvature airfoil section thickness airfoil section wing could restated wing layout air foil what Table 1 essentially doc uments real secrets glider performance rate Table 1 may used Interim Great Wonderful Nordic Design Oracle & State-Of-TheArt Determiner until next design trend comes along Speaking Which Speaking state of-the-art Nordics District V VicePresident Jim McNeill has some arty fact Jim has zoological assortment decorative tailschickens hippos etc see photo also noting bamboo tail boom Jim enjoys h flying reflected artful approach tails chicken doesnt work out Jim can always change eagle con dor performance peacock NFFS Nouncement National Free Flight Society gears already motion get proverbial act together 79 looked-forward-to efforts Society annual 12th annual year NFFS Symposium Na tional Free Flight Society now soliciting papers 1979 NFFS Symposium held 1979 Nats Papers will published 1979 Symposium volume whether author able present paper personally Nats Papers should cover some aspect science art free flight models including tech nical studies practical design engineer ing applied models new unusual model aircraft developments historical items Both indoor outdoor free-flight modeling developments included Please send proposed papers Mr Rob ert P Dodds Box 436 Rancho Santa Fe CA 92067 Send title proposed paper together abstract 200 words or complete paper available Abstracts should submitted soon possible NFFS Nouncement No 2 Another Societys annual efforts also associated Natssponsoring/conducting Nats Unofficial Events thought 7-Up responsible Although Unofficial Events program has become somewhat traditional Nats planning and/or announcement some events past have sometimes late loose non-existent Terry Rimert NFFS 1979 Nats Un official Events Director volunteer tempting prevent past mistakes Terry puts trying get some events lined up time let people know going have can prepare Im looking people sponsor events people run events Nats sooner find out what can better So far John Pond has told going have Old Time FF Friday Old Time Banquet Fri day night will try schedule NFFS events conflict Rubber Speed will again offer prize buck per mph winner Tentatively Rubber Speed will Tuesday need someone sponsor/run Helicopter Autogyro nithopter Jumbo Scale Thompson Tro phy Races Embryo Endurance ROW P-30 Cargo few others Volunteers interested aiding Terry event sponsor event director event worker whatever contact him 367 Orange Avenue Baldwin FL 32234 cant helper least consider fly ing events Unofficial some really neat challenging unique fun official North Northwest definitely no fun lose airplane wander around aim lessly woods looking com pass could excellent aid searching February 1979 107 r Cat No 216 195 lost model properly used I-lowever compass doesnt much good dont know use As might somewhat embarassing ask structions compass use compet itor some people would rather eat worms ask help wouldnt how-to book nice Well book ex plains very simply some compass tech niques free fighters could use Over simplified fact See dog see cat see dog cat techniques book Expert Map Compass Orienteering Handbook Bjorn Kjellstrom Stackpole Books Bob Meuser 4200 Gregory St Oak land CA 94619 True helical pitch airfoil win-power 2 Blade Tractor 53each 545 35-4304 6364354 74767-8504 84868-8654 98104106854needs 11411-6118Si 12-412-512-65150 2 Blade PusherAT YOUR DEALER 5/ 3 5%4 6-36-4 354 3 Blade Pasher Metallic Aluminum 86885125 96 106 04 5150 Pusher106$150 FF Old Timer/Haught continued page 58 calibrated Flight performance Y & 0 props seems equal other brands although very difficult determine variables considered obtained nostalgic beauties Tom Cope 23262 SE 57th Street Route 3 Issaquab Washington 98027 lists along other items interest oldtimers Diameters range 8 18 pitches 4 8 range Tom tells Y & 0 props also available laminated wood prices right Ive also heard Mark Fechner 4456 W GRISH LARGE WOOD PROPELLERS HARDWOOD too hard minimizes costly plane 3145 So Salt Lake City Utah 84120 stocks Y & 0 props along hard get engine parts Rebuild Engine good original ignition engines getting harder harder find makes good sense get maxi mum life out ones have avail able Fortunately lapped piston cylinder assemblies have long lives exposed excessive dirt grit high-time engines still have good compression long after rest engine no longer serviceable cylinder-piston fit no longer ac ceptable possible have cylinder chrome plated old piston refitted provided engine has removable cyl inder head allowing access machining engine has integral head pretty much stuck common ailment old en gines worn main connecting rod bearings worn main bearings allow crankshaft wobble engine vi bration also allow leakage crank case compression vital proper fuel transfer 2-stroke-cycle engine Fabricating fitting new main rod bearings economical worth undertaking allows hours continued service old engine Broken mount lugs can repaired careful buildup metal using Heliarc welding process filing and/or machining back shape Incidentally common use electric starters can harmful older engines due lack thrust bearings capable absorbing inward pressure crank shaft reverse normal thrust load often born thin front surface main bearing wearing against back prop-drive washer Allowed continue procedure can lead crankpin machining groove rear crankcase cover several shops specializing model engine rework Some will work old-time engines couple will above mentioned Mark Fechner iL Machine Service John Lorbiecki 5847 N 67th Street Milwaukee Wiscon sin 53218 Anyone else willing work 108 Model Aviation Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground d Support AMA WINO SPAN 50 WING AREA 425 ENGINES 15-35 WEIGHT 34 LBS FAST BOXLOK CONSTRUCTION MUST FOR THE BEGINNER GREATEST B/C BASIC TRAINEB Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold themSHALL WE SAY MORE Andrrs Aircraft Model Co US Rte 1& North St Topsfield Mass 01983 887-8541 Price $3995 kit per dollar bar em CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049/051 Specialists brochure send 1 5C stamp Kustom Kraftsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 O FLASH STARTING UNEaCELLED POWER LONGER tIPS iFD LOWEST DRAIN GLOW PLUGS 1417 SWANSON ASSOCIATES P0 ROT SIWATNP SEW SIsSY 5700 Ss POUTS 5PrQUflN~x srw 15555Y 050WW forflO PROPELLERS polyester boil color Go GRISH propeller Sizes pitches styles engine damage True pitch airfoil fully carved Crafts man addshis own final touches 3/B BORE ALL SIZES IN $7 6 B & 10 PITCH20B 2210 2413 NEW SIZE 8 PITCH26$16 inmmin BROS OKEN ST JOHN INDIANA 46373 RIGHT HAND TRACTOR