Free Flight OLD- TIMER Clarence Haught WHY Some time ago after prolonged period futile engine-cranking spurred occasional single firing sat back heels asked myself am doing Old-Timers have shop full models virtually other cate gories' vividly recall first glow plug Arden ordered mail along pint strong-smelling glow fuel ne cessitated shipment raila process re quiring nearly month nearest hobby shop 40 miles away lucky get twice year After installing plug fueling up nearly afraid hook up batteryfearing engine would burst life its own happened fuel tank dissolved years glow engines later returned ignition engines trialsalbeit much easier now better understanding engine operation course important factor good batteries appeal Old-Timers varied O-T enthusiasts Realism typical Cabin model probably heads list AnDon Nordlund Tacoma WA likes Old-Timers Because have wheels also likes sound Anderson Spitfire powering silk-covered Powerhouse Alas wheels arent going help situation high grass Photo D Nordlund other reason preservation modeling using power tools sandpaper its infancyjust turning out magnificent replica period today traditional woodworkers cabinetry fiirnitiir-hiii1ders would think 66 Model Aviation Continued page 161 long ago nobody ever heard Playboy Cabin Now its becoming design beat contests throughout country Bob Schafers powered Super Cyclone covered silk finished clear nitrate dope D Nordlund photo Did ever forget trip DT timer Bob Schafer uses pull-pin having bright-colored streamer remind him trip timer lever pin pulled small spring pulls timer release lever main attractions Old-Timer activity fellowship Joe Beshar L Jack Hill Larry Fair R discuss ignition problem Joes Fox design MA plan No 152 July 1976 issue engine looks like Bantam 19 half original ship actually beginning fly will recover wing-low attitudes course now looks like planes used draw kindergar ten have seen several hopeless cases im proved hacking away great pieces rud der Both too much too little fin seem have some same symptoms Well having Guillows Hawker Hurricane gave same problem years ago improved after knocking off vertical stabilizer know what Paul talking about After correct area determined simply makes new part outline roughly same originalonly smaller Maybe wont win Scale points name game flying too Wickner Wicko Mooney plan could adjusted adding vertical stabilizer area Walts flew fine de signed Well may area mysticism rather aeronautical engineer ing some hard cases might try adding vertical area reduction else has failed Chopping rud der down has long remedy spiral instability enlarging cure Dutch Roll tail wagging certain combintaions things certain propeller/power com binations unusual things good discus sion problems can found Bill McCombs Making Scale Model Airplanes Fly Aircraft Data Box 32021 Dallas TX 75224 Indoor season back some models will certainly make appearance Indoor sites around country sure come new Indoor Model Supply line Lew Gitlow Gerald Myers have gotten out Water man Racer Zippy Sport Heath Parasol 1929 Alco Sport complete withdocumentation sheets promise popular introductions Indoor Peanut Outdoor flier Featuring iron-on pat terns printwood tissue markings kits unique 1937 Aronca K has 9-in fuselage comes out bit larger others IMS catalog $150 PO Box C Garberville CA 95440 Well gang may positively-charged models stay away negatively-charged NEW FOURMOST PRODUCTS! FOURMOST RECOIL TUBING four foot length super-tough fuel-proof urethane tubing pre-formed FOUR-INCH COIL allows placement yourfield boxand can convenient distance aircraft boat After use tubing will retract its earlier space-saving form Ky price$395 OUA FUEL LINE PIPING PROBLEM cf Size 3/32 0Price 9200 1 Tee 1 Elbow 1 union 1 Plug _ WE HAVE THE FITTING SOLUTION LARGE c KY ORsmallSize 1/1610PrIce 9150 1 Tee 2 Elbows Pen Bladder Tee 040 24th Ave Forest Grove OR 97116 FOURMOST PRODUCTS eIephone 503 357-2732 trees Bill Warner 423-C San Vicente Blvd Santa Monica CA 90402 FF Old-Timers/Haught Continued page 66 course appeal large modelsbe flown Free Flight RC evidenced popularity Giant Scale Large models fly realistically efficiently decided ask some avid Old-Timer enthusiasts modelers have given up other forms categories model mg fly Old-Timers Bob Schafer formerly Spokane recently Puget Sound area built Old-Timers new subsequently flew other events including Nordic Wakefield AMA gas has past 10 years built flown Old-Timers because low-pressure fun people associated movement Bob Petro Coeur dAlene ID pri marily RC flier flies Old-Timer Free Flight event Bob likes tra ditional construction craftsmanship evident structures covered colored silk finished clear dope Its see sun shining through silk circling high overhead Don Nordlund Tacoma WA builds beautiful class C ships Don loves sound ignition engines probably unique response query likes Old-Timers because have wheels guess doesnt really matter Old-Timers reading probably already enthusiast Yet seems selfish having much fun sharing another modeler hasnt discovered Old-Timers Lets get friend involved Structural changes SAM rules specifically limit modifications Old-Timer designs recognize necessity beefing up structures serviceability stopping short KO0OYH1DEAWAYCO9BYH1DEAWvYI-I5B5YHIDEAWAYHO55YEIOEAWY FAMOUS BRITISH DIESELS AEROMODELLER SPARES FOR M/E PAW D/C 3rd PRINTING PLANS -4CATALOG DIESEL HANDBOOK $350 pp HOBBY HIDEWAYDELAVAN1IL 309 244-7389 61734 YIIIDEAWAYHOO5YHI5EAWAYHOO5YHIDEAWAYHO5OYHIDEAU WE NOW HAVE COMPLETE LINE OF BROWN TELCO DAVIS CO-2 ENGINES INCLUDING SPARE PARTS SERVICE IROWNTEL CO A23 PEANUT$3995STANDARD TELCO $3495 CAMPUS BEE$3495TURBO 3000 $2293 cAMPUS TWIN $5995TURBO Goon $3995 SODA CHARGER$1295 DA55- COX 02CONVERSION TO cO2$3995 NEW CATALOG No 25 $150 PHONE 9194424039 CWbhIUVU7WUUTG Big 4999975 W BOX 2498-MALA MESA CA 92041 December 1983 161 K-TOOL CHOPS razor blade SAWS razor saw CUTS wood plastics metals 26 difterent angles Send self-addressed stamped envelope complete information KALEE INC Dept MA 0 2041 Winnetlra N 0 Minneapolis MN 55427 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: 66, 161, 162
Free Flight OLD- TIMER Clarence Haught WHY Some time ago after prolonged period futile engine-cranking spurred occasional single firing sat back heels asked myself am doing Old-Timers have shop full models virtually other cate gories' vividly recall first glow plug Arden ordered mail along pint strong-smelling glow fuel ne cessitated shipment raila process re quiring nearly month nearest hobby shop 40 miles away lucky get twice year After installing plug fueling up nearly afraid hook up batteryfearing engine would burst life its own happened fuel tank dissolved years glow engines later returned ignition engines trialsalbeit much easier now better understanding engine operation course important factor good batteries appeal Old-Timers varied O-T enthusiasts Realism typical Cabin model probably heads list AnDon Nordlund Tacoma WA likes Old-Timers Because have wheels also likes sound Anderson Spitfire powering silk-covered Powerhouse Alas wheels arent going help situation high grass Photo D Nordlund other reason preservation modeling using power tools sandpaper its infancyjust turning out magnificent replica period today traditional woodworkers cabinetry fiirnitiir-hiii1ders would think 66 Model Aviation Continued page 161 long ago nobody ever heard Playboy Cabin Now its becoming design beat contests throughout country Bob Schafers powered Super Cyclone covered silk finished clear nitrate dope D Nordlund photo Did ever forget trip DT timer Bob Schafer uses pull-pin having bright-colored streamer remind him trip timer lever pin pulled small spring pulls timer release lever main attractions Old-Timer activity fellowship Joe Beshar L Jack Hill Larry Fair R discuss ignition problem Joes Fox design MA plan No 152 July 1976 issue engine looks like Bantam 19 half original ship actually beginning fly will recover wing-low attitudes course now looks like planes used draw kindergar ten have seen several hopeless cases im proved hacking away great pieces rud der Both too much too little fin seem have some same symptoms Well having Guillows Hawker Hurricane gave same problem years ago improved after knocking off vertical stabilizer know what Paul talking about After correct area determined simply makes new part outline roughly same originalonly smaller Maybe wont win Scale points name game flying too Wickner Wicko Mooney plan could adjusted adding vertical stabilizer area Walts flew fine de signed Well may area mysticism rather aeronautical engineer ing some hard cases might try adding vertical area reduction else has failed Chopping rud der down has long remedy spiral instability enlarging cure Dutch Roll tail wagging certain combintaions things certain propeller/power com binations unusual things good discus sion problems can found Bill McCombs Making Scale Model Airplanes Fly Aircraft Data Box 32021 Dallas TX 75224 Indoor season back some models will certainly make appearance Indoor sites around country sure come new Indoor Model Supply line Lew Gitlow Gerald Myers have gotten out Water man Racer Zippy Sport Heath Parasol 1929 Alco Sport complete withdocumentation sheets promise popular introductions Indoor Peanut Outdoor flier Featuring iron-on pat terns printwood tissue markings kits unique 1937 Aronca K has 9-in fuselage comes out bit larger others IMS catalog $150 PO Box C Garberville CA 95440 Well gang may positively-charged models stay away negatively-charged NEW FOURMOST PRODUCTS! FOURMOST RECOIL TUBING four foot length super-tough fuel-proof urethane tubing pre-formed FOUR-INCH COIL allows placement yourfield boxand can convenient distance aircraft boat After use tubing will retract its earlier space-saving form Ky price$395 OUA FUEL LINE PIPING PROBLEM cf Size 3/32 0Price 9200 1 Tee 1 Elbow 1 union 1 Plug _ WE HAVE THE FITTING SOLUTION LARGE c KY ORsmallSize 1/1610PrIce 9150 1 Tee 2 Elbows Pen Bladder Tee 040 24th Ave Forest Grove OR 97116 FOURMOST PRODUCTS eIephone 503 357-2732 trees Bill Warner 423-C San Vicente Blvd Santa Monica CA 90402 FF Old-Timers/Haught Continued page 66 course appeal large modelsbe flown Free Flight RC evidenced popularity Giant Scale Large models fly realistically efficiently decided ask some avid Old-Timer enthusiasts modelers have given up other forms categories model mg fly Old-Timers Bob Schafer formerly Spokane recently Puget Sound area built Old-Timers new subsequently flew other events including Nordic Wakefield AMA gas has past 10 years built flown Old-Timers because low-pressure fun people associated movement Bob Petro Coeur dAlene ID pri marily RC flier flies Old-Timer Free Flight event Bob likes tra ditional construction craftsmanship evident structures covered colored silk finished clear dope Its see sun shining through silk circling high overhead Don Nordlund Tacoma WA builds beautiful class C ships Don loves sound ignition engines probably unique response query likes Old-Timers because have wheels guess doesnt really matter Old-Timers reading probably already enthusiast Yet seems selfish having much fun sharing another modeler hasnt discovered Old-Timers Lets get friend involved Structural changes SAM rules specifically limit modifications Old-Timer designs recognize necessity beefing up structures serviceability stopping short KO0OYH1DEAWAYCO9BYH1DEAWvYI-I5B5YHIDEAWAYHO55YEIOEAWY FAMOUS BRITISH DIESELS AEROMODELLER SPARES FOR M/E PAW D/C 3rd PRINTING PLANS -4CATALOG DIESEL HANDBOOK $350 pp HOBBY HIDEWAYDELAVAN1IL 309 244-7389 61734 YIIIDEAWAYHOO5YHI5EAWAYHOO5YHIDEAWAYHO5OYHIDEAU WE NOW HAVE COMPLETE LINE OF BROWN TELCO DAVIS CO-2 ENGINES INCLUDING SPARE PARTS SERVICE IROWNTEL CO A23 PEANUT$3995STANDARD TELCO $3495 CAMPUS BEE$3495TURBO 3000 $2293 cAMPUS TWIN $5995TURBO Goon $3995 SODA CHARGER$1295 DA55- COX 02CONVERSION TO cO2$3995 NEW CATALOG No 25 $150 PHONE 9194424039 CWbhIUVU7WUUTG Big 4999975 W BOX 2498-MALA MESA CA 92041 December 1983 161 K-TOOL CHOPS razor blade SAWS razor saw CUTS wood plastics metals 26 difterent angles Send self-addressed stamped envelope complete information KALEE INC Dept MA 0 2041 Winnetlra N 0 Minneapolis MN 55427 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: 66, 161, 162
Free Flight OLD- TIMER Clarence Haught WHY Some time ago after prolonged period futile engine-cranking spurred occasional single firing sat back heels asked myself am doing Old-Timers have shop full models virtually other cate gories' vividly recall first glow plug Arden ordered mail along pint strong-smelling glow fuel ne cessitated shipment raila process re quiring nearly month nearest hobby shop 40 miles away lucky get twice year After installing plug fueling up nearly afraid hook up batteryfearing engine would burst life its own happened fuel tank dissolved years glow engines later returned ignition engines trialsalbeit much easier now better understanding engine operation course important factor good batteries appeal Old-Timers varied O-T enthusiasts Realism typical Cabin model probably heads list AnDon Nordlund Tacoma WA likes Old-Timers Because have wheels also likes sound Anderson Spitfire powering silk-covered Powerhouse Alas wheels arent going help situation high grass Photo D Nordlund other reason preservation modeling using power tools sandpaper its infancyjust turning out magnificent replica period today traditional woodworkers cabinetry fiirnitiir-hiii1ders would think 66 Model Aviation Continued page 161 long ago nobody ever heard Playboy Cabin Now its becoming design beat contests throughout country Bob Schafers powered Super Cyclone covered silk finished clear nitrate dope D Nordlund photo Did ever forget trip DT timer Bob Schafer uses pull-pin having bright-colored streamer remind him trip timer lever pin pulled small spring pulls timer release lever main attractions Old-Timer activity fellowship Joe Beshar L Jack Hill Larry Fair R discuss ignition problem Joes Fox design MA plan No 152 July 1976 issue engine looks like Bantam 19 half original ship actually beginning fly will recover wing-low attitudes course now looks like planes used draw kindergar ten have seen several hopeless cases im proved hacking away great pieces rud der Both too much too little fin seem have some same symptoms Well having Guillows Hawker Hurricane gave same problem years ago improved after knocking off vertical stabilizer know what Paul talking about After correct area determined simply makes new part outline roughly same originalonly smaller Maybe wont win Scale points name game flying too Wickner Wicko Mooney plan could adjusted adding vertical stabilizer area Walts flew fine de signed Well may area mysticism rather aeronautical engineer ing some hard cases might try adding vertical area reduction else has failed Chopping rud der down has long remedy spiral instability enlarging cure Dutch Roll tail wagging certain combintaions things certain propeller/power com binations unusual things good discus sion problems can found Bill McCombs Making Scale Model Airplanes Fly Aircraft Data Box 32021 Dallas TX 75224 Indoor season back some models will certainly make appearance Indoor sites around country sure come new Indoor Model Supply line Lew Gitlow Gerald Myers have gotten out Water man Racer Zippy Sport Heath Parasol 1929 Alco Sport complete withdocumentation sheets promise popular introductions Indoor Peanut Outdoor flier Featuring iron-on pat terns printwood tissue markings kits unique 1937 Aronca K has 9-in fuselage comes out bit larger others IMS catalog $150 PO Box C Garberville CA 95440 Well gang may positively-charged models stay away negatively-charged NEW FOURMOST PRODUCTS! FOURMOST RECOIL TUBING four foot length super-tough fuel-proof urethane tubing pre-formed FOUR-INCH COIL allows placement yourfield boxand can convenient distance aircraft boat After use tubing will retract its earlier space-saving form Ky price$395 OUA FUEL LINE PIPING PROBLEM cf Size 3/32 0Price 9200 1 Tee 1 Elbow 1 union 1 Plug _ WE HAVE THE FITTING SOLUTION LARGE c KY ORsmallSize 1/1610PrIce 9150 1 Tee 2 Elbows Pen Bladder Tee 040 24th Ave Forest Grove OR 97116 FOURMOST PRODUCTS eIephone 503 357-2732 trees Bill Warner 423-C San Vicente Blvd Santa Monica CA 90402 FF Old-Timers/Haught Continued page 66 course appeal large modelsbe flown Free Flight RC evidenced popularity Giant Scale Large models fly realistically efficiently decided ask some avid Old-Timer enthusiasts modelers have given up other forms categories model mg fly Old-Timers Bob Schafer formerly Spokane recently Puget Sound area built Old-Timers new subsequently flew other events including Nordic Wakefield AMA gas has past 10 years built flown Old-Timers because low-pressure fun people associated movement Bob Petro Coeur dAlene ID pri marily RC flier flies Old-Timer Free Flight event Bob likes tra ditional construction craftsmanship evident structures covered colored silk finished clear dope Its see sun shining through silk circling high overhead Don Nordlund Tacoma WA builds beautiful class C ships Don loves sound ignition engines probably unique response query likes Old-Timers because have wheels guess doesnt really matter Old-Timers reading probably already enthusiast Yet seems selfish having much fun sharing another modeler hasnt discovered Old-Timers Lets get friend involved Structural changes SAM rules specifically limit modifications Old-Timer designs recognize necessity beefing up structures serviceability stopping short KO0OYH1DEAWAYCO9BYH1DEAWvYI-I5B5YHIDEAWAYHO55YEIOEAWY FAMOUS BRITISH DIESELS AEROMODELLER SPARES FOR M/E PAW D/C 3rd PRINTING PLANS -4CATALOG DIESEL HANDBOOK $350 pp HOBBY HIDEWAYDELAVAN1IL 309 244-7389 61734 YIIIDEAWAYHOO5YHI5EAWAYHOO5YHIDEAWAYHO5OYHIDEAU WE NOW HAVE COMPLETE LINE OF BROWN TELCO DAVIS CO-2 ENGINES INCLUDING SPARE PARTS SERVICE IROWNTEL CO A23 PEANUT$3995STANDARD TELCO $3495 CAMPUS BEE$3495TURBO 3000 $2293 cAMPUS TWIN $5995TURBO Goon $3995 SODA CHARGER$1295 DA55- COX 02CONVERSION TO cO2$3995 NEW CATALOG No 25 $150 PHONE 9194424039 CWbhIUVU7WUUTG Big 4999975 W BOX 2498-MALA MESA CA 92041 December 1983 161 K-TOOL CHOPS razor blade SAWS razor saw CUTS wood plastics metals 26 difterent angles Send self-addressed stamped envelope complete information KALEE INC Dept MA 0 2041 Winnetlra N 0 Minneapolis MN 55427 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