RECENTLY described cheapest smallest outdated production air plane country today Taylorcraft often called T-Craft again rolling off assembly line Through efforts man named Charlie Feris classic little puddlejumper 1930s 1940s has back production over three years now small factory just few miles original Taylorcraft plant Alliance Ohio Editors Note article prepared 1977 Founded 1931 C G Taylor man named Piper Taylor Aircraft Companys first airplane called Cub Later 1935 Taylor Piper split modest amount dihedral hands-off stability acceptable departure true scale Electric motor drive shows circle just behind prop hub Sheet metal gear practical departure struts sport flier up Piper took Cub him Tay lor reorganized came out side-by-side version Cub named Taylorcraft Model 1941 evolved familiar T-Craft shape called B12 Production resumed after war improved model BC-12D During first six months 1946 2800 model produced shortly thereafter Tay lorcraft like almost everyone else went broke 1949 Taylor started up again produced T-Craft small numbers until 1954 1967 Charlie Feris present builder T-Craft sold airport near Chi cago cool $15 million instead retiring counting money planned Charlie gathered up jigs parts purchased 1946 bankruptcy auction began search buyers other remnants Taylorcraft Company After five years enough tools jigs dies begin production Today T-Crafts rolling out rate about three month youll have January 1979 61 T-Craft contemporary Cub has distinctive character side-by-side rather tandem Cub Use NACA 23012 airfoil convex undercamber gave seven-league-boots cruising distance Very fine airplane overshadowed tha Cub Actually model uses fiat-bottomed Ace foam wing panels docile flier wait year get Designated F-19 Sportsman boasts 100-hp Con tinental engine giving maximum speed 127 mph cruise 115 mph rate climb 775 fpm Range 400 miles physical dimensions length22 ft wing span36 ft uses NACA 23012 airfoil price $9250 writer still could afford decided build model instead chose model BC-12D virtually same latest F-19 ver sion subject model 3-view appeared February 1968 issue American Aircraft Modeler original plans use Ace constant chord wing dictated scale approx imately 1 equals last minute decided use built-up wing ef fort keep ship light possible ample room cabin al type 2-3 channel radio gear Ace Pulse Commander system lost generous sized interior Originally planned install Ace tail-wagger system during con struction acquired Cannon Tini-Twin system room available couldnt resist temptation install T-Craft plan use channel recommend using glow engine rather electric since prototype up weight 22 oz mite underpowered performance quite marginal other hand Tee Dee 020-powered tail-wagger might require some means power reduction especially novice flier Summing up well put way electric power keep everything light especially radio Since scale models tail heavy decided build nose hard balsa blocks produced sturdy model added weight enabled us balance ship correctly addi tional nose weight gas-powered version could problem since glow engine weighs much less electric motor however careful placement radio gear far forward possible could conceivably compensate Tail Surfaces rudder elevator built conventional manner over plan first covered Saran Wrap other type clear plastic ma terial material sizes called Out plan balsa unless otherwise noted curved tip pieces cut scrap 1/8 sheet Note /8 sq ver tical spruce upright made long enough extend down between fuselage sides completed round off edges sand thoroughly preparation covering Fuselage Begin construction cutting two sides medium 1/16 sheet balsa mark off locations bulkheads F-2 F-3 F-4 sure mark off right left since two rights two lefts make assembly rather difficult 1/16 sheet doublers cabin area cemented place grain running vertically using contact cement Next join two sides together tail pruce rudder upright sandwiched between add bulk head F-2 trailing edge wing use Hot Stuff Zap etc operation speeds up assembly time consid erably Add firewall F-i followed bulk heads F-3 F-4 slower dry ing cements used sides can held together rubber bands Now cover fuselage top bottom 1/16 sheet running grain spanwise /8 ply wood used bottom land ing gear mounts Cement enough balsa blocks together form chunk large enough carve cowl windshield upper half shown plan made removable access engine lower half hollowed just enough fit engine opening cut bottom cowl fuel drainage case electric power proper air flow engine cooling Continued page 110 62 Model Aviation Above 1 Some details show addition bolt-on gear cooling slot bottom cowl peg-in cowl cover bolt-mounted wheels bottom stringers scale-like steps Above thing fits big cabin radio battery packs Ace pulse-rudder actuator Note push-pull switch side Left Two screws bracket hold down motor Ship easily modified gas engine THE SECOND ANNUAL LULLL&LiJ JANUARY 6 & 7 1979 SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF MODEL AIRCRAFT* MODEL ENGINES eMODEL BOATSeRADIOCONTROLSYSTEMS eMODELCARSeMODELINGACCESSORIES INDOOR AND OUTDOOR DEMONSTRATIONS STATIC DISPLAY COMPETITION IN MANY CATEGORIES OVERSEAS EXHIBITORS CORDIALLY INVITED INTERNATIONAL MODELER SHOW BOX 127 COSTA MESA CA 92627 17141 548-4700 know what happened flew Four times longest flight 59 seconds covering 852 feet over ground estimated half mile through air wind blowing better 20 mph Flyer never flew again having wrecked wind shortly after its fourth landing historic day eventually shipped England display Science Museum London because Smithsonian insisted Langley inventor airplane 1948 finally placed displayin Wash ington after stuffy Museum people admitted Wrights Lang ley first today Flyer hangs its glory just inside entrance National Air & Space Museum 20 million people have seen just first two years since new museum opened Yet true superiority Wrights still fully appreciated world isnt merely first fly fully controlled heavier-than-air machine No accomplishments span whole spectrum aeronautics Aerodynamics structures control engines propellers flight training race first fly really wasnt much race 59-second flight Dec 17 1903 wasnt bettered anyone else almost four years Wilbur credit 38-min ute flight covered 24 miles far ahead like no else trying still think 75 years such long time consider case Steve Wittman undisputed king pylon air racing record holder new Formula Vee Class Steve born just 3 months after Wrights first flight hes still active pilot ever run Steve ask see FAI Sporting License signed 0 Wright T-Craft/Schroeder continued page 62 Wing Begin cutting out ribs materials called out plan methods cutting out wing ribs preferred builder pin blanks together stacks about inch high trace pat tern onto top stack sand shape disc sander table must set exactly 90 degrees sanding dsc ribs will vary top stack bottom notches spars can cut band jig razor saw bbfore ribs split apart An alternate method would cut template light sheet metal pin down sheet balsa cut around edges making rib time time consuming perhaps results same Pin spars leading trailing edges down over plan after carefully checking rib proper fit cement place Next add wing tips cut /8 sheet balsa Finally add upper spars Join two outer panels center section using plywood di hedral braces reinforcement Next cover leading edges center section 1/16 sheet top Sand shape necessary preparation covering Covering Finish types coverings finishes available today sometimes difficult decide method use builder has less standardized MonoKote other plastic covering material wing tail surfaces doped Silkspan-covered surfaces fuselage Sand fuselage thoroughly #400 grit sandpaper dust off apply coat clear dope point simulate longerons applying 1/32 wide strips masking tape thread appro priate places shown plan Next entire fuselage covered layer lightweight Silkspan followed two coats 20% cornstarch 80% clear dope mixture After another sanding #400 grit sandpaper structure ready color doping Two three coats favorite color preferably sprayed will usually give satisfactory finish windows numbers cut white black MonoKote trim sheets RC Gear Installation location 110 ModelAviation -Lfl RC gear will determined mainly type power used Since Astro 02 electric-powered version considerably heavier Tee-Dee 020 rearward location radio gear will necessary balance model point shown plan Tee-Deepowered version other hand will require RC gear placed far forward possible perhaps some additional nose ballast may necessary balance ship proper location An excellent set instructions cluded Ace Pulse Commander showing several different types actuator mounting torque rod installations Any could used shown plan has advantage being visible after plane completed feature especially nice scale aircraft Flying Under no circumstances should T-Craft flown until aircraft has balanced location shown plan true model failure could very well spell disaster ship nose-heavy ship could possibly sur vive tail heavy strictly bad news T-Craft models size strictly calm weather airplane authors midwest location means either early morning late evening flying sessions use electric power permits since flying gaspowered aircraft times usually permitted fields Ace Pulse Commander radio supplied very good set instruc tions pulse rudder-only flying tech niques dont see point repeat ing Build model light sturdy follow manufacturers instructions engine RC installation will get hours relaxation enjoy ment T-Craft Power Weber continued page 64 passing less torque rpm through clutch fact torque power related following simple equation Power 000019 x Torque x rpm power horsepower hp torque pound-feet lb ft Look closely equation power product torque rpm fixed engine speed increase torque gives proportional increase power considered other way fixed torque rpm means power comparing two model engines may hear has torque other has power apparent contradiction explained fact rpm considered two engines will different Remem ber specified rpm torque always means power first figure shows power torque curves OS FS-60 4-cycle engine K&B 35cc 21 engine Notice K&B 35 can produce power OS FS-60 both engines operate above 12300 rpm K&B 35 operates above 16000 rpm low speed however OS FS-60 has power torque So read need torque turn large props what writer means need good power low rpm illustrated OS FS-60 Still both engines example run power peaks K&B 35 will fly model faster providing pro peller can matched correctly plane cases such planes large cowls high drag would require gearing down prop Gearing gains torque expense rpm Power delivered prop un changed except small losses gears belt gearing practical OS FS-60 would outperform K&B 35 large props because OS FS-60 has power torque low engine speed second figure shows power torque required turn typical 11-7 propeller different speeds test stand stationary airplane can seen increasing rpm raises power rapidly torque cause prop power again January1979 111 Please send me.......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/01
Page Numbers: 61, 62, 110, 111
RECENTLY described cheapest smallest outdated production air plane country today Taylorcraft often called T-Craft again rolling off assembly line Through efforts man named Charlie Feris classic little puddlejumper 1930s 1940s has back production over three years now small factory just few miles original Taylorcraft plant Alliance Ohio Editors Note article prepared 1977 Founded 1931 C G Taylor man named Piper Taylor Aircraft Companys first airplane called Cub Later 1935 Taylor Piper split modest amount dihedral hands-off stability acceptable departure true scale Electric motor drive shows circle just behind prop hub Sheet metal gear practical departure struts sport flier up Piper took Cub him Tay lor reorganized came out side-by-side version Cub named Taylorcraft Model 1941 evolved familiar T-Craft shape called B12 Production resumed after war improved model BC-12D During first six months 1946 2800 model produced shortly thereafter Tay lorcraft like almost everyone else went broke 1949 Taylor started up again produced T-Craft small numbers until 1954 1967 Charlie Feris present builder T-Craft sold airport near Chi cago cool $15 million instead retiring counting money planned Charlie gathered up jigs parts purchased 1946 bankruptcy auction began search buyers other remnants Taylorcraft Company After five years enough tools jigs dies begin production Today T-Crafts rolling out rate about three month youll have January 1979 61 T-Craft contemporary Cub has distinctive character side-by-side rather tandem Cub Use NACA 23012 airfoil convex undercamber gave seven-league-boots cruising distance Very fine airplane overshadowed tha Cub Actually model uses fiat-bottomed Ace foam wing panels docile flier wait year get Designated F-19 Sportsman boasts 100-hp Con tinental engine giving maximum speed 127 mph cruise 115 mph rate climb 775 fpm Range 400 miles physical dimensions length22 ft wing span36 ft uses NACA 23012 airfoil price $9250 writer still could afford decided build model instead chose model BC-12D virtually same latest F-19 ver sion subject model 3-view appeared February 1968 issue American Aircraft Modeler original plans use Ace constant chord wing dictated scale approx imately 1 equals last minute decided use built-up wing ef fort keep ship light possible ample room cabin al type 2-3 channel radio gear Ace Pulse Commander system lost generous sized interior Originally planned install Ace tail-wagger system during con struction acquired Cannon Tini-Twin system room available couldnt resist temptation install T-Craft plan use channel recommend using glow engine rather electric since prototype up weight 22 oz mite underpowered performance quite marginal other hand Tee Dee 020-powered tail-wagger might require some means power reduction especially novice flier Summing up well put way electric power keep everything light especially radio Since scale models tail heavy decided build nose hard balsa blocks produced sturdy model added weight enabled us balance ship correctly addi tional nose weight gas-powered version could problem since glow engine weighs much less electric motor however careful placement radio gear far forward possible could conceivably compensate Tail Surfaces rudder elevator built conventional manner over plan first covered Saran Wrap other type clear plastic ma terial material sizes called Out plan balsa unless otherwise noted curved tip pieces cut scrap 1/8 sheet Note /8 sq ver tical spruce upright made long enough extend down between fuselage sides completed round off edges sand thoroughly preparation covering Fuselage Begin construction cutting two sides medium 1/16 sheet balsa mark off locations bulkheads F-2 F-3 F-4 sure mark off right left since two rights two lefts make assembly rather difficult 1/16 sheet doublers cabin area cemented place grain running vertically using contact cement Next join two sides together tail pruce rudder upright sandwiched between add bulk head F-2 trailing edge wing use Hot Stuff Zap etc operation speeds up assembly time consid erably Add firewall F-i followed bulk heads F-3 F-4 slower dry ing cements used sides can held together rubber bands Now cover fuselage top bottom 1/16 sheet running grain spanwise /8 ply wood used bottom land ing gear mounts Cement enough balsa blocks together form chunk large enough carve cowl windshield upper half shown plan made removable access engine lower half hollowed just enough fit engine opening cut bottom cowl fuel drainage case electric power proper air flow engine cooling Continued page 110 62 Model Aviation Above 1 Some details show addition bolt-on gear cooling slot bottom cowl peg-in cowl cover bolt-mounted wheels bottom stringers scale-like steps Above thing fits big cabin radio battery packs Ace pulse-rudder actuator Note push-pull switch side Left Two screws bracket hold down motor Ship easily modified gas engine THE SECOND ANNUAL LULLL&LiJ JANUARY 6 & 7 1979 SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF MODEL AIRCRAFT* MODEL ENGINES eMODEL BOATSeRADIOCONTROLSYSTEMS eMODELCARSeMODELINGACCESSORIES INDOOR AND OUTDOOR DEMONSTRATIONS STATIC DISPLAY COMPETITION IN MANY CATEGORIES OVERSEAS EXHIBITORS CORDIALLY INVITED INTERNATIONAL MODELER SHOW BOX 127 COSTA MESA CA 92627 17141 548-4700 know what happened flew Four times longest flight 59 seconds covering 852 feet over ground estimated half mile through air wind blowing better 20 mph Flyer never flew again having wrecked wind shortly after its fourth landing historic day eventually shipped England display Science Museum London because Smithsonian insisted Langley inventor airplane 1948 finally placed displayin Wash ington after stuffy Museum people admitted Wrights Lang ley first today Flyer hangs its glory just inside entrance National Air & Space Museum 20 million people have seen just first two years since new museum opened Yet true superiority Wrights still fully appreciated world isnt merely first fly fully controlled heavier-than-air machine No accomplishments span whole spectrum aeronautics Aerodynamics structures control engines propellers flight training race first fly really wasnt much race 59-second flight Dec 17 1903 wasnt bettered anyone else almost four years Wilbur credit 38-min ute flight covered 24 miles far ahead like no else trying still think 75 years such long time consider case Steve Wittman undisputed king pylon air racing record holder new Formula Vee Class Steve born just 3 months after Wrights first flight hes still active pilot ever run Steve ask see FAI Sporting License signed 0 Wright T-Craft/Schroeder continued page 62 Wing Begin cutting out ribs materials called out plan methods cutting out wing ribs preferred builder pin blanks together stacks about inch high trace pat tern onto top stack sand shape disc sander table must set exactly 90 degrees sanding dsc ribs will vary top stack bottom notches spars can cut band jig razor saw bbfore ribs split apart An alternate method would cut template light sheet metal pin down sheet balsa cut around edges making rib time time consuming perhaps results same Pin spars leading trailing edges down over plan after carefully checking rib proper fit cement place Next add wing tips cut /8 sheet balsa Finally add upper spars Join two outer panels center section using plywood di hedral braces reinforcement Next cover leading edges center section 1/16 sheet top Sand shape necessary preparation covering Covering Finish types coverings finishes available today sometimes difficult decide method use builder has less standardized MonoKote other plastic covering material wing tail surfaces doped Silkspan-covered surfaces fuselage Sand fuselage thoroughly #400 grit sandpaper dust off apply coat clear dope point simulate longerons applying 1/32 wide strips masking tape thread appro priate places shown plan Next entire fuselage covered layer lightweight Silkspan followed two coats 20% cornstarch 80% clear dope mixture After another sanding #400 grit sandpaper structure ready color doping Two three coats favorite color preferably sprayed will usually give satisfactory finish windows numbers cut white black MonoKote trim sheets RC Gear Installation location 110 ModelAviation -Lfl RC gear will determined mainly type power used Since Astro 02 electric-powered version considerably heavier Tee-Dee 020 rearward location radio gear will necessary balance model point shown plan Tee-Deepowered version other hand will require RC gear placed far forward possible perhaps some additional nose ballast may necessary balance ship proper location An excellent set instructions cluded Ace Pulse Commander showing several different types actuator mounting torque rod installations Any could used shown plan has advantage being visible after plane completed feature especially nice scale aircraft Flying Under no circumstances should T-Craft flown until aircraft has balanced location shown plan true model failure could very well spell disaster ship nose-heavy ship could possibly sur vive tail heavy strictly bad news T-Craft models size strictly calm weather airplane authors midwest location means either early morning late evening flying sessions use electric power permits since flying gaspowered aircraft times usually permitted fields Ace Pulse Commander radio supplied very good set instruc tions pulse rudder-only flying tech niques dont see point repeat ing Build model light sturdy follow manufacturers instructions engine RC installation will get hours relaxation enjoy ment T-Craft Power Weber continued page 64 passing less torque rpm through clutch fact torque power related following simple equation Power 000019 x Torque x rpm power horsepower hp torque pound-feet lb ft Look closely equation power product torque rpm fixed engine speed increase torque gives proportional increase power considered other way fixed torque rpm means power comparing two model engines may hear has torque other has power apparent contradiction explained fact rpm considered two engines will different Remem ber specified rpm torque always means power first figure shows power torque curves OS FS-60 4-cycle engine K&B 35cc 21 engine Notice K&B 35 can produce power OS FS-60 both engines operate above 12300 rpm K&B 35 operates above 16000 rpm low speed however OS FS-60 has power torque So read need torque turn large props what writer means need good power low rpm illustrated OS FS-60 Still both engines example run power peaks K&B 35 will fly model faster providing pro peller can matched correctly plane cases such planes large cowls high drag would require gearing down prop Gearing gains torque expense rpm Power delivered prop un changed except small losses gears belt gearing practical OS FS-60 would outperform K&B 35 large props because OS FS-60 has power torque low engine speed second figure shows power torque required turn typical 11-7 propeller different speeds test stand stationary airplane can seen increasing rpm raises power rapidly torque cause prop power again January1979 111 Please send me.......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/01
Page Numbers: 61, 62, 110, 111
RECENTLY described cheapest smallest outdated production air plane country today Taylorcraft often called T-Craft again rolling off assembly line Through efforts man named Charlie Feris classic little puddlejumper 1930s 1940s has back production over three years now small factory just few miles original Taylorcraft plant Alliance Ohio Editors Note article prepared 1977 Founded 1931 C G Taylor man named Piper Taylor Aircraft Companys first airplane called Cub Later 1935 Taylor Piper split modest amount dihedral hands-off stability acceptable departure true scale Electric motor drive shows circle just behind prop hub Sheet metal gear practical departure struts sport flier up Piper took Cub him Tay lor reorganized came out side-by-side version Cub named Taylorcraft Model 1941 evolved familiar T-Craft shape called B12 Production resumed after war improved model BC-12D During first six months 1946 2800 model produced shortly thereafter Tay lorcraft like almost everyone else went broke 1949 Taylor started up again produced T-Craft small numbers until 1954 1967 Charlie Feris present builder T-Craft sold airport near Chi cago cool $15 million instead retiring counting money planned Charlie gathered up jigs parts purchased 1946 bankruptcy auction began search buyers other remnants Taylorcraft Company After five years enough tools jigs dies begin production Today T-Crafts rolling out rate about three month youll have January 1979 61 T-Craft contemporary Cub has distinctive character side-by-side rather tandem Cub Use NACA 23012 airfoil convex undercamber gave seven-league-boots cruising distance Very fine airplane overshadowed tha Cub Actually model uses fiat-bottomed Ace foam wing panels docile flier wait year get Designated F-19 Sportsman boasts 100-hp Con tinental engine giving maximum speed 127 mph cruise 115 mph rate climb 775 fpm Range 400 miles physical dimensions length22 ft wing span36 ft uses NACA 23012 airfoil price $9250 writer still could afford decided build model instead chose model BC-12D virtually same latest F-19 ver sion subject model 3-view appeared February 1968 issue American Aircraft Modeler original plans use Ace constant chord wing dictated scale approx imately 1 equals last minute decided use built-up wing ef fort keep ship light possible ample room cabin al type 2-3 channel radio gear Ace Pulse Commander system lost generous sized interior Originally planned install Ace tail-wagger system during con struction acquired Cannon Tini-Twin system room available couldnt resist temptation install T-Craft plan use channel recommend using glow engine rather electric since prototype up weight 22 oz mite underpowered performance quite marginal other hand Tee Dee 020-powered tail-wagger might require some means power reduction especially novice flier Summing up well put way electric power keep everything light especially radio Since scale models tail heavy decided build nose hard balsa blocks produced sturdy model added weight enabled us balance ship correctly addi tional nose weight gas-powered version could problem since glow engine weighs much less electric motor however careful placement radio gear far forward possible could conceivably compensate Tail Surfaces rudder elevator built conventional manner over plan first covered Saran Wrap other type clear plastic ma terial material sizes called Out plan balsa unless otherwise noted curved tip pieces cut scrap 1/8 sheet Note /8 sq ver tical spruce upright made long enough extend down between fuselage sides completed round off edges sand thoroughly preparation covering Fuselage Begin construction cutting two sides medium 1/16 sheet balsa mark off locations bulkheads F-2 F-3 F-4 sure mark off right left since two rights two lefts make assembly rather difficult 1/16 sheet doublers cabin area cemented place grain running vertically using contact cement Next join two sides together tail pruce rudder upright sandwiched between add bulk head F-2 trailing edge wing use Hot Stuff Zap etc operation speeds up assembly time consid erably Add firewall F-i followed bulk heads F-3 F-4 slower dry ing cements used sides can held together rubber bands Now cover fuselage top bottom 1/16 sheet running grain spanwise /8 ply wood used bottom land ing gear mounts Cement enough balsa blocks together form chunk large enough carve cowl windshield upper half shown plan made removable access engine lower half hollowed just enough fit engine opening cut bottom cowl fuel drainage case electric power proper air flow engine cooling Continued page 110 62 Model Aviation Above 1 Some details show addition bolt-on gear cooling slot bottom cowl peg-in cowl cover bolt-mounted wheels bottom stringers scale-like steps Above thing fits big cabin radio battery packs Ace pulse-rudder actuator Note push-pull switch side Left Two screws bracket hold down motor Ship easily modified gas engine THE SECOND ANNUAL LULLL&LiJ JANUARY 6 & 7 1979 SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF MODEL AIRCRAFT* MODEL ENGINES eMODEL BOATSeRADIOCONTROLSYSTEMS eMODELCARSeMODELINGACCESSORIES INDOOR AND OUTDOOR DEMONSTRATIONS STATIC DISPLAY COMPETITION IN MANY CATEGORIES OVERSEAS EXHIBITORS CORDIALLY INVITED INTERNATIONAL MODELER SHOW BOX 127 COSTA MESA CA 92627 17141 548-4700 know what happened flew Four times longest flight 59 seconds covering 852 feet over ground estimated half mile through air wind blowing better 20 mph Flyer never flew again having wrecked wind shortly after its fourth landing historic day eventually shipped England display Science Museum London because Smithsonian insisted Langley inventor airplane 1948 finally placed displayin Wash ington after stuffy Museum people admitted Wrights Lang ley first today Flyer hangs its glory just inside entrance National Air & Space Museum 20 million people have seen just first two years since new museum opened Yet true superiority Wrights still fully appreciated world isnt merely first fly fully controlled heavier-than-air machine No accomplishments span whole spectrum aeronautics Aerodynamics structures control engines propellers flight training race first fly really wasnt much race 59-second flight Dec 17 1903 wasnt bettered anyone else almost four years Wilbur credit 38-min ute flight covered 24 miles far ahead like no else trying still think 75 years such long time consider case Steve Wittman undisputed king pylon air racing record holder new Formula Vee Class Steve born just 3 months after Wrights first flight hes still active pilot ever run Steve ask see FAI Sporting License signed 0 Wright T-Craft/Schroeder continued page 62 Wing Begin cutting out ribs materials called out plan methods cutting out wing ribs preferred builder pin blanks together stacks about inch high trace pat tern onto top stack sand shape disc sander table must set exactly 90 degrees sanding dsc ribs will vary top stack bottom notches spars can cut band jig razor saw bbfore ribs split apart An alternate method would cut template light sheet metal pin down sheet balsa cut around edges making rib time time consuming perhaps results same Pin spars leading trailing edges down over plan after carefully checking rib proper fit cement place Next add wing tips cut /8 sheet balsa Finally add upper spars Join two outer panels center section using plywood di hedral braces reinforcement Next cover leading edges center section 1/16 sheet top Sand shape necessary preparation covering Covering Finish types coverings finishes available today sometimes difficult decide method use builder has less standardized MonoKote other plastic covering material wing tail surfaces doped Silkspan-covered surfaces fuselage Sand fuselage thoroughly #400 grit sandpaper dust off apply coat clear dope point simulate longerons applying 1/32 wide strips masking tape thread appro priate places shown plan Next entire fuselage covered layer lightweight Silkspan followed two coats 20% cornstarch 80% clear dope mixture After another sanding #400 grit sandpaper structure ready color doping Two three coats favorite color preferably sprayed will usually give satisfactory finish windows numbers cut white black MonoKote trim sheets RC Gear Installation location 110 ModelAviation -Lfl RC gear will determined mainly type power used Since Astro 02 electric-powered version considerably heavier Tee-Dee 020 rearward location radio gear will necessary balance model point shown plan Tee-Deepowered version other hand will require RC gear placed far forward possible perhaps some additional nose ballast may necessary balance ship proper location An excellent set instructions cluded Ace Pulse Commander showing several different types actuator mounting torque rod installations Any could used shown plan has advantage being visible after plane completed feature especially nice scale aircraft Flying Under no circumstances should T-Craft flown until aircraft has balanced location shown plan true model failure could very well spell disaster ship nose-heavy ship could possibly sur vive tail heavy strictly bad news T-Craft models size strictly calm weather airplane authors midwest location means either early morning late evening flying sessions use electric power permits since flying gaspowered aircraft times usually permitted fields Ace Pulse Commander radio supplied very good set instruc tions pulse rudder-only flying tech niques dont see point repeat ing Build model light sturdy follow manufacturers instructions engine RC installation will get hours relaxation enjoy ment T-Craft Power Weber continued page 64 passing less torque rpm through clutch fact torque power related following simple equation Power 000019 x Torque x rpm power horsepower hp torque pound-feet lb ft Look closely equation power product torque rpm fixed engine speed increase torque gives proportional increase power considered other way fixed torque rpm means power comparing two model engines may hear has torque other has power apparent contradiction explained fact rpm considered two engines will different Remem ber specified rpm torque always means power first figure shows power torque curves OS FS-60 4-cycle engine K&B 35cc 21 engine Notice K&B 35 can produce power OS FS-60 both engines operate above 12300 rpm K&B 35 operates above 16000 rpm low speed however OS FS-60 has power torque So read need torque turn large props what writer means need good power low rpm illustrated OS FS-60 Still both engines example run power peaks K&B 35 will fly model faster providing pro peller can matched correctly plane cases such planes large cowls high drag would require gearing down prop Gearing gains torque expense rpm Power delivered prop un changed except small losses gears belt gearing practical OS FS-60 would outperform K&B 35 large props because OS FS-60 has power torque low engine speed second figure shows power torque required turn typical 11-7 propeller different speeds test stand stationary airplane can seen increasing rpm raises power rapidly torque cause prop power again January1979 111 Please send me.......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024
Edition: Model Aviation - 1979/01
Page Numbers: 61, 62, 110, 111
RECENTLY described cheapest smallest outdated production air plane country today Taylorcraft often called T-Craft again rolling off assembly line Through efforts man named Charlie Feris classic little puddlejumper 1930s 1940s has back production over three years now small factory just few miles original Taylorcraft plant Alliance Ohio Editors Note article prepared 1977 Founded 1931 C G Taylor man named Piper Taylor Aircraft Companys first airplane called Cub Later 1935 Taylor Piper split modest amount dihedral hands-off stability acceptable departure true scale Electric motor drive shows circle just behind prop hub Sheet metal gear practical departure struts sport flier up Piper took Cub him Tay lor reorganized came out side-by-side version Cub named Taylorcraft Model 1941 evolved familiar T-Craft shape called B12 Production resumed after war improved model BC-12D During first six months 1946 2800 model produced shortly thereafter Tay lorcraft like almost everyone else went broke 1949 Taylor started up again produced T-Craft small numbers until 1954 1967 Charlie Feris present builder T-Craft sold airport near Chi cago cool $15 million instead retiring counting money planned Charlie gathered up jigs parts purchased 1946 bankruptcy auction began search buyers other remnants Taylorcraft Company After five years enough tools jigs dies begin production Today T-Crafts rolling out rate about three month youll have January 1979 61 T-Craft contemporary Cub has distinctive character side-by-side rather tandem Cub Use NACA 23012 airfoil convex undercamber gave seven-league-boots cruising distance Very fine airplane overshadowed tha Cub Actually model uses fiat-bottomed Ace foam wing panels docile flier wait year get Designated F-19 Sportsman boasts 100-hp Con tinental engine giving maximum speed 127 mph cruise 115 mph rate climb 775 fpm Range 400 miles physical dimensions length22 ft wing span36 ft uses NACA 23012 airfoil price $9250 writer still could afford decided build model instead chose model BC-12D virtually same latest F-19 ver sion subject model 3-view appeared February 1968 issue American Aircraft Modeler original plans use Ace constant chord wing dictated scale approx imately 1 equals last minute decided use built-up wing ef fort keep ship light possible ample room cabin al type 2-3 channel radio gear Ace Pulse Commander system lost generous sized interior Originally planned install Ace tail-wagger system during con struction acquired Cannon Tini-Twin system room available couldnt resist temptation install T-Craft plan use channel recommend using glow engine rather electric since prototype up weight 22 oz mite underpowered performance quite marginal other hand Tee Dee 020-powered tail-wagger might require some means power reduction especially novice flier Summing up well put way electric power keep everything light especially radio Since scale models tail heavy decided build nose hard balsa blocks produced sturdy model added weight enabled us balance ship correctly addi tional nose weight gas-powered version could problem since glow engine weighs much less electric motor however careful placement radio gear far forward possible could conceivably compensate Tail Surfaces rudder elevator built conventional manner over plan first covered Saran Wrap other type clear plastic ma terial material sizes called Out plan balsa unless otherwise noted curved tip pieces cut scrap 1/8 sheet Note /8 sq ver tical spruce upright made long enough extend down between fuselage sides completed round off edges sand thoroughly preparation covering Fuselage Begin construction cutting two sides medium 1/16 sheet balsa mark off locations bulkheads F-2 F-3 F-4 sure mark off right left since two rights two lefts make assembly rather difficult 1/16 sheet doublers cabin area cemented place grain running vertically using contact cement Next join two sides together tail pruce rudder upright sandwiched between add bulk head F-2 trailing edge wing use Hot Stuff Zap etc operation speeds up assembly time consid erably Add firewall F-i followed bulk heads F-3 F-4 slower dry ing cements used sides can held together rubber bands Now cover fuselage top bottom 1/16 sheet running grain spanwise /8 ply wood used bottom land ing gear mounts Cement enough balsa blocks together form chunk large enough carve cowl windshield upper half shown plan made removable access engine lower half hollowed just enough fit engine opening cut bottom cowl fuel drainage case electric power proper air flow engine cooling Continued page 110 62 Model Aviation Above 1 Some details show addition bolt-on gear cooling slot bottom cowl peg-in cowl cover bolt-mounted wheels bottom stringers scale-like steps Above thing fits big cabin radio battery packs Ace pulse-rudder actuator Note push-pull switch side Left Two screws bracket hold down motor Ship easily modified gas engine THE SECOND ANNUAL LULLL&LiJ JANUARY 6 & 7 1979 SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF MODEL AIRCRAFT* MODEL ENGINES eMODEL BOATSeRADIOCONTROLSYSTEMS eMODELCARSeMODELINGACCESSORIES INDOOR AND OUTDOOR DEMONSTRATIONS STATIC DISPLAY COMPETITION IN MANY CATEGORIES OVERSEAS EXHIBITORS CORDIALLY INVITED INTERNATIONAL MODELER SHOW BOX 127 COSTA MESA CA 92627 17141 548-4700 know what happened flew Four times longest flight 59 seconds covering 852 feet over ground estimated half mile through air wind blowing better 20 mph Flyer never flew again having wrecked wind shortly after its fourth landing historic day eventually shipped England display Science Museum London because Smithsonian insisted Langley inventor airplane 1948 finally placed displayin Wash ington after stuffy Museum people admitted Wrights Lang ley first today Flyer hangs its glory just inside entrance National Air & Space Museum 20 million people have seen just first two years since new museum opened Yet true superiority Wrights still fully appreciated world isnt merely first fly fully controlled heavier-than-air machine No accomplishments span whole spectrum aeronautics Aerodynamics structures control engines propellers flight training race first fly really wasnt much race 59-second flight Dec 17 1903 wasnt bettered anyone else almost four years Wilbur credit 38-min ute flight covered 24 miles far ahead like no else trying still think 75 years such long time consider case Steve Wittman undisputed king pylon air racing record holder new Formula Vee Class Steve born just 3 months after Wrights first flight hes still active pilot ever run Steve ask see FAI Sporting License signed 0 Wright T-Craft/Schroeder continued page 62 Wing Begin cutting out ribs materials called out plan methods cutting out wing ribs preferred builder pin blanks together stacks about inch high trace pat tern onto top stack sand shape disc sander table must set exactly 90 degrees sanding dsc ribs will vary top stack bottom notches spars can cut band jig razor saw bbfore ribs split apart An alternate method would cut template light sheet metal pin down sheet balsa cut around edges making rib time time consuming perhaps results same Pin spars leading trailing edges down over plan after carefully checking rib proper fit cement place Next add wing tips cut /8 sheet balsa Finally add upper spars Join two outer panels center section using plywood di hedral braces reinforcement Next cover leading edges center section 1/16 sheet top Sand shape necessary preparation covering Covering Finish types coverings finishes available today sometimes difficult decide method use builder has less standardized MonoKote other plastic covering material wing tail surfaces doped Silkspan-covered surfaces fuselage Sand fuselage thoroughly #400 grit sandpaper dust off apply coat clear dope point simulate longerons applying 1/32 wide strips masking tape thread appro priate places shown plan Next entire fuselage covered layer lightweight Silkspan followed two coats 20% cornstarch 80% clear dope mixture After another sanding #400 grit sandpaper structure ready color doping Two three coats favorite color preferably sprayed will usually give satisfactory finish windows numbers cut white black MonoKote trim sheets RC Gear Installation location 110 ModelAviation -Lfl RC gear will determined mainly type power used Since Astro 02 electric-powered version considerably heavier Tee-Dee 020 rearward location radio gear will necessary balance model point shown plan Tee-Deepowered version other hand will require RC gear placed far forward possible perhaps some additional nose ballast may necessary balance ship proper location An excellent set instructions cluded Ace Pulse Commander showing several different types actuator mounting torque rod installations Any could used shown plan has advantage being visible after plane completed feature especially nice scale aircraft Flying Under no circumstances should T-Craft flown until aircraft has balanced location shown plan true model failure could very well spell disaster ship nose-heavy ship could possibly sur vive tail heavy strictly bad news T-Craft models size strictly calm weather airplane authors midwest location means either early morning late evening flying sessions use electric power permits since flying gaspowered aircraft times usually permitted fields Ace Pulse Commander radio supplied very good set instruc tions pulse rudder-only flying tech niques dont see point repeat ing Build model light sturdy follow manufacturers instructions engine RC installation will get hours relaxation enjoy ment T-Craft Power Weber continued page 64 passing less torque rpm through clutch fact torque power related following simple equation Power 000019 x Torque x rpm power horsepower hp torque pound-feet lb ft Look closely equation power product torque rpm fixed engine speed increase torque gives proportional increase power considered other way fixed torque rpm means power comparing two model engines may hear has torque other has power apparent contradiction explained fact rpm considered two engines will different Remem ber specified rpm torque always means power first figure shows power torque curves OS FS-60 4-cycle engine K&B 35cc 21 engine Notice K&B 35 can produce power OS FS-60 both engines operate above 12300 rpm K&B 35 operates above 16000 rpm low speed however OS FS-60 has power torque So read need torque turn large props what writer means need good power low rpm illustrated OS FS-60 Still both engines example run power peaks K&B 35 will fly model faster providing pro peller can matched correctly plane cases such planes large cowls high drag would require gearing down prop Gearing gains torque expense rpm Power delivered prop un changed except small losses gears belt gearing practical OS FS-60 would outperform K&B 35 large props because OS FS-60 has power torque low engine speed second figure shows power torque required turn typical 11-7 propeller different speeds test stand stationary airplane can seen increasing rpm raises power rapidly torque cause prop power again January1979 111 Please send me.......... copies new fourth edition Radio Control Buyers Guide Enclosed $600 copy ordered $525 Guide plus $75 postage & handling Total Enclosed ___________ anada City State ZIP Return Boynton & Assoc Clifton House Clifton VA 22024