Looking club event chance try hand trimming low-wing model can have lot fun same time easyto-build classic air racers Thirties Quick attractive color schemes can applied colored felt-tip markers pens WHEN WAS THE last time built fun model Sure models fun long has since treated yourself childhood dreams like racing own Travel Air Mystery around pylons hot pursuit red Miss Los Angeles dont know times got caught daydreaming mid-race teachers school just something about racers gets blood think condition prompted build two racers profile design chosen speed simplicity impor tant considerations since built motel room minimum tools supplies should no problem put two together evening using fast cyanoacrylate glues avail able theme fun two models just eyeball scale look good shelf air both perform very well indoors out Keep light will disappoint Just envi sion climbing off sunset together Start cutting out parts medium-light balsa except noted Use harder balsa landing gear pans Once parts cut out sand edges decorate units before sembling used set felt-tip marking pens ruler decorate originals takes very little time trim adds much finished appearance also lot easier decorate different parts before assembled December 1983 67 Tfle motivating end Travel Air Note nose doubler thrust bearing prop assembly two planes simple build rugged enough lot backyard flying single loop 1/8-in rubber keeps plane up price down Since both models quite similar construction Ill comment differ ences come up wing assembly comes first glue has dry completely before wing can affixed fuselage Glue ribs underside wing panels shown plans Make sure build right left wing panel Use dihedral guide set proper angle root ribs also landing gear mounting ribs Travel Air Let panels dry completely before sanding root ribs preparation joining panels Fit two panels no gap joined dihedral under tip glue together set aside dry meantime glue two nose doublers fuselage After has set fit Peck-Polymers nose bearing place Make sure has proper downthrust shown drawing Bend propeller shaft /32-In music wire slide bearing set small washers propeller Bend over end wir closely possible allow free pro peller hook clearances fit sembly fuselage glue bear ing place Also glue second nose doubler drying cut out add tail skid rear rubber retaining wire Slide stabilizer slot fuse lage check alignment glue place Add rudder making sure mounted straight square sembly dry add thread rigging extra strength realism wing assembly dry fit fuselage Trim joint carefully sure good fit Glue wing place set aside dry Make up landing gear parts assemble shown Travel Air gear can just friction fit slot formed wing ribs saves wing landing gear dam age hard landings Miss Los Angeles has wire base gear strength glue gear parts well take brunt landing stress Use light balsa wheel pant parts hard balsa struts wheels short piece aluminum tube could added hub wheels bearing desired Flying Now can either sit back admire creation get ready first race plan hand-wind motor cut loop A-in rubber 1 longer distance between front hook rear rubber retaining wire plan using winder longer flights make loop 2 longer final rubber length will determined after youve flown model few times now make up motor described install Detailing makes airborne model look very real ease application put color before assembling parts rear rubber retaining wire removable changing motors winding models can learn lot about adjusting techniques Miss Los Angeles sports rigid landing gear Use hard balsa struts helps prolong models life Note modeling clay nose used get correct balance point CG After final trimming clay will replaced lead solder improve models appearance Travel Air landing gear struts plug gap between wing ribs hard land ings gear pops out saving gear wings damage Thin balsa wheels fitted simple wheel pants go long way adding charm otherwise simple model FULL-SIZE PLANS AVAILABLE. SEE PAGE 178 -~-1/16 DOMLER III2 REQO It'______________ III III DINWING 1/32 SHEETDIN/TIP ANGLEGAP FOR LG1/16 RIBS 6 116 SQ LENOTE 2 ANGLE RIBS FOR3/32 X 3/16THREAD RIGGHG LG STRUTSHARD BALSA2FILLSTRUTS-, EOb FUSELAGE PIN AXLES5-1/2 PLASTiC~ PROP W/PECI BEARINGI DIA WHEELS FROM 1/16 BALSA R [_ 25-1/2 PLASTIC PROPI/B SHt FUSELAGE STBEARING RIGGING 1/32 SHEETPOINT THREAD RIGGING STRUT WIRE I/32MW 7~1 WHEELS 2 REQD T/DIA FROM 1/16 BALSA left stall roll under power add nose weight go back first trim ming steps Ive found nose weight has tremendous stabilizing effect low-wing models After trim worked out well model consistent its flight path ANGEL K Hand-wind motor about 50 turns take up slack pin propeller doesnt unwind Balance mode modeling clay lead solder until location shown plan impor tant step especially low-wing models Improper balancing will probably result splattering new racer first fullpower run balance point properly located propeller still pinned give model few test glides over grass Repeat glid ing tests until have consistently flat glide turns model has definite desire turn way other check warns Remove find steaming tea kettle pan boiling water twist section remove warp Retest glide Begin powered flight tests around 50 turns rubber motor 75 up increments 25 model shows tendencies roll off left compensate slight amounts right rudder may necessary washin right wing panel /x prevent model spinning-in under power Both original models fly V16 right rudder washin right wing power pattern gentle right-turning climb goes lefthand circle glide model tends zoom right RACERS BY _____ _____o4r HAUUIT WING 1/32 SHEET 1/16 RIBS 4 ii-777 -I DIHITIP 1/32 1/32 IvtW IThHj THREAD TRUE LENGTH STRUTS 1/16 X 1/4 1/32 HAROLGMW STRUTS 2 111/7/3/32 CORE Vfb\ may want try reducing nose weight small bit time However zooming tendency returns replace weight severe instance zooming may necessary add downthrust Continued page 162 December 1983 69 es provide high return fun low investment time materials Keep lightweight unwarped best flight results Large stab rudder helps stability 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: 67, 68, 69, 162
Edition: Model Aviation - 1983/12
Page Numbers: 67, 68, 69, 162
Looking club event chance try hand trimming low-wing model can have lot fun same time easyto-build classic air racers Thirties Quick attractive color schemes can applied colored felt-tip markers pens WHEN WAS THE last time built fun model Sure models fun long has since treated yourself childhood dreams like racing own Travel Air Mystery around pylons hot pursuit red Miss Los Angeles dont know times got caught daydreaming mid-race teachers school just something about racers gets blood think condition prompted build two racers profile design chosen speed simplicity impor tant considerations since built motel room minimum tools supplies should no problem put two together evening using fast cyanoacrylate glues avail able theme fun two models just eyeball scale look good shelf air both perform very well indoors out Keep light will disappoint Just envi sion climbing off sunset together Start cutting out parts medium-light balsa except noted Use harder balsa landing gear pans Once parts cut out sand edges decorate units before sembling used set felt-tip marking pens ruler decorate originals takes very little time trim adds much finished appearance also lot easier decorate different parts before assembled December 1983 67 Tfle motivating end Travel Air Note nose doubler thrust bearing prop assembly two planes simple build rugged enough lot backyard flying single loop 1/8-in rubber keeps plane up price down Since both models quite similar construction Ill comment differ ences come up wing assembly comes first glue has dry completely before wing can affixed fuselage Glue ribs underside wing panels shown plans Make sure build right left wing panel Use dihedral guide set proper angle root ribs also landing gear mounting ribs Travel Air Let panels dry completely before sanding root ribs preparation joining panels Fit two panels no gap joined dihedral under tip glue together set aside dry meantime glue two nose doublers fuselage After has set fit Peck-Polymers nose bearing place Make sure has proper downthrust shown drawing Bend propeller shaft /32-In music wire slide bearing set small washers propeller Bend over end wir closely possible allow free pro peller hook clearances fit sembly fuselage glue bear ing place Also glue second nose doubler drying cut out add tail skid rear rubber retaining wire Slide stabilizer slot fuse lage check alignment glue place Add rudder making sure mounted straight square sembly dry add thread rigging extra strength realism wing assembly dry fit fuselage Trim joint carefully sure good fit Glue wing place set aside dry Make up landing gear parts assemble shown Travel Air gear can just friction fit slot formed wing ribs saves wing landing gear dam age hard landings Miss Los Angeles has wire base gear strength glue gear parts well take brunt landing stress Use light balsa wheel pant parts hard balsa struts wheels short piece aluminum tube could added hub wheels bearing desired Flying Now can either sit back admire creation get ready first race plan hand-wind motor cut loop A-in rubber 1 longer distance between front hook rear rubber retaining wire plan using winder longer flights make loop 2 longer final rubber length will determined after youve flown model few times now make up motor described install Detailing makes airborne model look very real ease application put color before assembling parts rear rubber retaining wire removable changing motors winding models can learn lot about adjusting techniques Miss Los Angeles sports rigid landing gear Use hard balsa struts helps prolong models life Note modeling clay nose used get correct balance point CG After final trimming clay will replaced lead solder improve models appearance Travel Air landing gear struts plug gap between wing ribs hard land ings gear pops out saving gear wings damage Thin balsa wheels fitted simple wheel pants go long way adding charm otherwise simple model FULL-SIZE PLANS AVAILABLE. SEE PAGE 178 -~-1/16 DOMLER III2 REQO It'______________ III III DINWING 1/32 SHEETDIN/TIP ANGLEGAP FOR LG1/16 RIBS 6 116 SQ LENOTE 2 ANGLE RIBS FOR3/32 X 3/16THREAD RIGGHG LG STRUTSHARD BALSA2FILLSTRUTS-, EOb FUSELAGE PIN AXLES5-1/2 PLASTiC~ PROP W/PECI BEARINGI DIA WHEELS FROM 1/16 BALSA R [_ 25-1/2 PLASTIC PROPI/B SHt FUSELAGE STBEARING RIGGING 1/32 SHEETPOINT THREAD RIGGING STRUT WIRE I/32MW 7~1 WHEELS 2 REQD T/DIA FROM 1/16 BALSA left stall roll under power add nose weight go back first trim ming steps Ive found nose weight has tremendous stabilizing effect low-wing models After trim worked out well model consistent its flight path ANGEL K Hand-wind motor about 50 turns take up slack pin propeller doesnt unwind Balance mode modeling clay lead solder until location shown plan impor tant step especially low-wing models Improper balancing will probably result splattering new racer first fullpower run balance point properly located propeller still pinned give model few test glides over grass Repeat glid ing tests until have consistently flat glide turns model has definite desire turn way other check warns Remove find steaming tea kettle pan boiling water twist section remove warp Retest glide Begin powered flight tests around 50 turns rubber motor 75 up increments 25 model shows tendencies roll off left compensate slight amounts right rudder may necessary washin right wing panel /x prevent model spinning-in under power Both original models fly V16 right rudder washin right wing power pattern gentle right-turning climb goes lefthand circle glide model tends zoom right RACERS BY _____ _____o4r HAUUIT WING 1/32 SHEET 1/16 RIBS 4 ii-777 -I DIHITIP 1/32 1/32 IvtW IThHj THREAD TRUE LENGTH STRUTS 1/16 X 1/4 1/32 HAROLGMW STRUTS 2 111/7/3/32 CORE Vfb\ may want try reducing nose weight small bit time However zooming tendency returns replace weight severe instance zooming may necessary add downthrust Continued page 162 December 1983 69 es provide high return fun low investment time materials Keep lightweight unwarped best flight results Large stab rudder helps stability 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: 67, 68, 69, 162
Looking club event chance try hand trimming low-wing model can have lot fun same time easyto-build classic air racers Thirties Quick attractive color schemes can applied colored felt-tip markers pens WHEN WAS THE last time built fun model Sure models fun long has since treated yourself childhood dreams like racing own Travel Air Mystery around pylons hot pursuit red Miss Los Angeles dont know times got caught daydreaming mid-race teachers school just something about racers gets blood think condition prompted build two racers profile design chosen speed simplicity impor tant considerations since built motel room minimum tools supplies should no problem put two together evening using fast cyanoacrylate glues avail able theme fun two models just eyeball scale look good shelf air both perform very well indoors out Keep light will disappoint Just envi sion climbing off sunset together Start cutting out parts medium-light balsa except noted Use harder balsa landing gear pans Once parts cut out sand edges decorate units before sembling used set felt-tip marking pens ruler decorate originals takes very little time trim adds much finished appearance also lot easier decorate different parts before assembled December 1983 67 Tfle motivating end Travel Air Note nose doubler thrust bearing prop assembly two planes simple build rugged enough lot backyard flying single loop 1/8-in rubber keeps plane up price down Since both models quite similar construction Ill comment differ ences come up wing assembly comes first glue has dry completely before wing can affixed fuselage Glue ribs underside wing panels shown plans Make sure build right left wing panel Use dihedral guide set proper angle root ribs also landing gear mounting ribs Travel Air Let panels dry completely before sanding root ribs preparation joining panels Fit two panels no gap joined dihedral under tip glue together set aside dry meantime glue two nose doublers fuselage After has set fit Peck-Polymers nose bearing place Make sure has proper downthrust shown drawing Bend propeller shaft /32-In music wire slide bearing set small washers propeller Bend over end wir closely possible allow free pro peller hook clearances fit sembly fuselage glue bear ing place Also glue second nose doubler drying cut out add tail skid rear rubber retaining wire Slide stabilizer slot fuse lage check alignment glue place Add rudder making sure mounted straight square sembly dry add thread rigging extra strength realism wing assembly dry fit fuselage Trim joint carefully sure good fit Glue wing place set aside dry Make up landing gear parts assemble shown Travel Air gear can just friction fit slot formed wing ribs saves wing landing gear dam age hard landings Miss Los Angeles has wire base gear strength glue gear parts well take brunt landing stress Use light balsa wheel pant parts hard balsa struts wheels short piece aluminum tube could added hub wheels bearing desired Flying Now can either sit back admire creation get ready first race plan hand-wind motor cut loop A-in rubber 1 longer distance between front hook rear rubber retaining wire plan using winder longer flights make loop 2 longer final rubber length will determined after youve flown model few times now make up motor described install Detailing makes airborne model look very real ease application put color before assembling parts rear rubber retaining wire removable changing motors winding models can learn lot about adjusting techniques Miss Los Angeles sports rigid landing gear Use hard balsa struts helps prolong models life Note modeling clay nose used get correct balance point CG After final trimming clay will replaced lead solder improve models appearance Travel Air landing gear struts plug gap between wing ribs hard land ings gear pops out saving gear wings damage Thin balsa wheels fitted simple wheel pants go long way adding charm otherwise simple model FULL-SIZE PLANS AVAILABLE. SEE PAGE 178 -~-1/16 DOMLER III2 REQO It'______________ III III DINWING 1/32 SHEETDIN/TIP ANGLEGAP FOR LG1/16 RIBS 6 116 SQ LENOTE 2 ANGLE RIBS FOR3/32 X 3/16THREAD RIGGHG LG STRUTSHARD BALSA2FILLSTRUTS-, EOb FUSELAGE PIN AXLES5-1/2 PLASTiC~ PROP W/PECI BEARINGI DIA WHEELS FROM 1/16 BALSA R [_ 25-1/2 PLASTIC PROPI/B SHt FUSELAGE STBEARING RIGGING 1/32 SHEETPOINT THREAD RIGGING STRUT WIRE I/32MW 7~1 WHEELS 2 REQD T/DIA FROM 1/16 BALSA left stall roll under power add nose weight go back first trim ming steps Ive found nose weight has tremendous stabilizing effect low-wing models After trim worked out well model consistent its flight path ANGEL K Hand-wind motor about 50 turns take up slack pin propeller doesnt unwind Balance mode modeling clay lead solder until location shown plan impor tant step especially low-wing models Improper balancing will probably result splattering new racer first fullpower run balance point properly located propeller still pinned give model few test glides over grass Repeat glid ing tests until have consistently flat glide turns model has definite desire turn way other check warns Remove find steaming tea kettle pan boiling water twist section remove warp Retest glide Begin powered flight tests around 50 turns rubber motor 75 up increments 25 model shows tendencies roll off left compensate slight amounts right rudder may necessary washin right wing panel /x prevent model spinning-in under power Both original models fly V16 right rudder washin right wing power pattern gentle right-turning climb goes lefthand circle glide model tends zoom right RACERS BY _____ _____o4r HAUUIT WING 1/32 SHEET 1/16 RIBS 4 ii-777 -I DIHITIP 1/32 1/32 IvtW IThHj THREAD TRUE LENGTH STRUTS 1/16 X 1/4 1/32 HAROLGMW STRUTS 2 111/7/3/32 CORE Vfb\ may want try reducing nose weight small bit time However zooming tendency returns replace weight severe instance zooming may necessary add downthrust Continued page 162 December 1983 69 es provide high return fun low investment time materials Keep lightweight unwarped best flight results Large stab rudder helps stability 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: 67, 68, 69, 162
Looking club event chance try hand trimming low-wing model can have lot fun same time easyto-build classic air racers Thirties Quick attractive color schemes can applied colored felt-tip markers pens WHEN WAS THE last time built fun model Sure models fun long has since treated yourself childhood dreams like racing own Travel Air Mystery around pylons hot pursuit red Miss Los Angeles dont know times got caught daydreaming mid-race teachers school just something about racers gets blood think condition prompted build two racers profile design chosen speed simplicity impor tant considerations since built motel room minimum tools supplies should no problem put two together evening using fast cyanoacrylate glues avail able theme fun two models just eyeball scale look good shelf air both perform very well indoors out Keep light will disappoint Just envi sion climbing off sunset together Start cutting out parts medium-light balsa except noted Use harder balsa landing gear pans Once parts cut out sand edges decorate units before sembling used set felt-tip marking pens ruler decorate originals takes very little time trim adds much finished appearance also lot easier decorate different parts before assembled December 1983 67 Tfle motivating end Travel Air Note nose doubler thrust bearing prop assembly two planes simple build rugged enough lot backyard flying single loop 1/8-in rubber keeps plane up price down Since both models quite similar construction Ill comment differ ences come up wing assembly comes first glue has dry completely before wing can affixed fuselage Glue ribs underside wing panels shown plans Make sure build right left wing panel Use dihedral guide set proper angle root ribs also landing gear mounting ribs Travel Air Let panels dry completely before sanding root ribs preparation joining panels Fit two panels no gap joined dihedral under tip glue together set aside dry meantime glue two nose doublers fuselage After has set fit Peck-Polymers nose bearing place Make sure has proper downthrust shown drawing Bend propeller shaft /32-In music wire slide bearing set small washers propeller Bend over end wir closely possible allow free pro peller hook clearances fit sembly fuselage glue bear ing place Also glue second nose doubler drying cut out add tail skid rear rubber retaining wire Slide stabilizer slot fuse lage check alignment glue place Add rudder making sure mounted straight square sembly dry add thread rigging extra strength realism wing assembly dry fit fuselage Trim joint carefully sure good fit Glue wing place set aside dry Make up landing gear parts assemble shown Travel Air gear can just friction fit slot formed wing ribs saves wing landing gear dam age hard landings Miss Los Angeles has wire base gear strength glue gear parts well take brunt landing stress Use light balsa wheel pant parts hard balsa struts wheels short piece aluminum tube could added hub wheels bearing desired Flying Now can either sit back admire creation get ready first race plan hand-wind motor cut loop A-in rubber 1 longer distance between front hook rear rubber retaining wire plan using winder longer flights make loop 2 longer final rubber length will determined after youve flown model few times now make up motor described install Detailing makes airborne model look very real ease application put color before assembling parts rear rubber retaining wire removable changing motors winding models can learn lot about adjusting techniques Miss Los Angeles sports rigid landing gear Use hard balsa struts helps prolong models life Note modeling clay nose used get correct balance point CG After final trimming clay will replaced lead solder improve models appearance Travel Air landing gear struts plug gap between wing ribs hard land ings gear pops out saving gear wings damage Thin balsa wheels fitted simple wheel pants go long way adding charm otherwise simple model FULL-SIZE PLANS AVAILABLE. SEE PAGE 178 -~-1/16 DOMLER III2 REQO It'______________ III III DINWING 1/32 SHEETDIN/TIP ANGLEGAP FOR LG1/16 RIBS 6 116 SQ LENOTE 2 ANGLE RIBS FOR3/32 X 3/16THREAD RIGGHG LG STRUTSHARD BALSA2FILLSTRUTS-, EOb FUSELAGE PIN AXLES5-1/2 PLASTiC~ PROP W/PECI BEARINGI DIA WHEELS FROM 1/16 BALSA R [_ 25-1/2 PLASTIC PROPI/B SHt FUSELAGE STBEARING RIGGING 1/32 SHEETPOINT THREAD RIGGING STRUT WIRE I/32MW 7~1 WHEELS 2 REQD T/DIA FROM 1/16 BALSA left stall roll under power add nose weight go back first trim ming steps Ive found nose weight has tremendous stabilizing effect low-wing models After trim worked out well model consistent its flight path ANGEL K Hand-wind motor about 50 turns take up slack pin propeller doesnt unwind Balance mode modeling clay lead solder until location shown plan impor tant step especially low-wing models Improper balancing will probably result splattering new racer first fullpower run balance point properly located propeller still pinned give model few test glides over grass Repeat glid ing tests until have consistently flat glide turns model has definite desire turn way other check warns Remove find steaming tea kettle pan boiling water twist section remove warp Retest glide Begin powered flight tests around 50 turns rubber motor 75 up increments 25 model shows tendencies roll off left compensate slight amounts right rudder may necessary washin right wing panel /x prevent model spinning-in under power Both original models fly V16 right rudder washin right wing power pattern gentle right-turning climb goes lefthand circle glide model tends zoom right RACERS BY _____ _____o4r HAUUIT WING 1/32 SHEET 1/16 RIBS 4 ii-777 -I DIHITIP 1/32 1/32 IvtW IThHj THREAD TRUE LENGTH STRUTS 1/16 X 1/4 1/32 HAROLGMW STRUTS 2 111/7/3/32 CORE Vfb\ may want try reducing nose weight small bit time However zooming tendency returns replace weight severe instance zooming may necessary add downthrust Continued page 162 December 1983 69 es provide high return fun low investment time materials Keep lightweight unwarped best flight results Large stab rudder helps stability 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
