Real plane model pilot mechanic figures heighten illusion reality smidgeon dihedral does say model perceiving eye Author used electric power order fly outside curfew hours equivalent gas engine can used just easily three-servo electric-powered RC scale model worlds interesting airplanes just oozes alongas should its convertible Vein Schroeder DURING THE EARLY 1930s British Aircraft Corp built series tan dem two-place gliders designated BAC VII 1932 aircraft fitted landing gear motorcycle engine mounted pylon above wing Since weight additional equipment equalled weight second occupant redesigned single-seater named Plan ette proved both docile maneuver able speed range 15 40 mph Due its success three constructed 1933 company taken over Australian sailplane pilot Robert Kronfeld fitted remaining No 2 pro totype streamlined pylon re named Drone Production Drones fitted specially developed 23-hp Douglas Sprite engines April 1936 1935 production model G-AEUA flown non-stop Croydon England Berlin Germany 11 hours 25 shillings worth fuel During year 1936 20 planes built firm renamed Kronfeld Ltd Shortly afterward aircraft came known Kronfeld Super Drone Before closing down 1937 total 28 planes built delight fly low visibility could heard miles due credible noise created close prox imity propeller tips structure During war Drone camou flaged flown pilots No 609 Fighter Squadron duck-shooting sorties using 12 gauge shotgun ring-andbead sight G-AEKV sub ject model rebuilt 1950 last Drones remain air worthy 28 planes built probably no two exactly alike crashed modified during reconstruction clearly evident photos AEKV Bill Winter able furnish during con struction Drone specifications listed British Civil Aircraft follows Wingspan 39 ft 8 length 21 ft 2 height 7 ft Depending powerplant maximum speed ranged 70-73 mph cruising speed 60-65 mph initial climb 380-480 ft per min ute ceiling 12500 ft range 300-340 miles design construction Drone began spring 1974 time just regained use club flying field after flying suspended several months mainly due noise problems given back use field providing several rules fol lowed namely mufflers used flying restricted hours between 1000 am 800 pm fliers hours perfectly acceptable writer has always pre ferred avoid crowds 60powered bombs has preferred fly calmness tranquility early morning air About time remembered seeing several articles electric propulsion various model magazines After read ing information electrics could find decided case its advantages far outweighed its disadvan tages decision made go elec tric Its quietness would allow us fly hour night day completely eliminating need costly messy glow fuel glow plugs startingbatteries starters cleaner rags other goodies necessary gas engine operation ad dition ideal pusher configurations since necessary reverse battery polarity motor reverse its direction thereby eliminating need special pusher props quite limited sizes availability Also what could convenient just flip switch lever start stop motor will either ground flight Electric power its disad vantages however mainly higher initial cost higher weight need cases set on-the-field charg ing batteries Some smaller systems can charged automobile bat tery eliminating field charger usually consists two three motorcycle batteries connected series model built scale 2 inches equals 1 foot giving wingspan slight ly under 80 inches length ofjust over 42 inches Total weight came out whopping 5 lb 3 oz using Astro-lO 10 ModelAviation ur perhaps Its easier tell real plane trom modelthe model much neateri Heal plane saw light 1930 two-place glider 1932 motorcycle engine added electric power unit suggested glow en gine installation shown wishing go electric route choose electric however keep construc tion light practical especially tail model required 5 ounces ballast nose bring CG proper location suggest building tail surfaces 3/16 stock instead 1/4 using 3/32 sides possibly substituting wire tail skid steerable tail wheel radio gear Astro-lO battery follow motor manufacturers instructions kept far forward possible lightweight set wheels such Trexler used likely five ounces ballast could eliminated total weight could reduced much 12 14 ounces Elimination motor on-off switch servo could save another couple ounces thereby possibly saving total 16 ounces lowering total weight slightly over five pounds four pounds would increase performance consid erably Construction fairly straightforward throughout maximum strength aliphatic resin cement such Titebond Wilhold recommended doublers Contact cement works well Fuselage Cut sides doublers sheet stock join together using contact cement Next add formers followed top bottom sheet covering Note bottom hatch landing gear mounts plywood landing gear fabricated 3/32 music wire attached suitable clamps shown steerable tail wheel optional holes 3/16 wire wing mounts should carefully located drilled area between two plywood sides should reinforced balsa block additional strength fuselage doped give coat clear followed layer lightweight Silkspan three four coats sealer After sanding another couple coats clear before color will produce better finish Wing Tail Surfaces Cover plans Saran Wrap other clear plastic material lay out tail surfaces normal manner lighten can built 3/16 stock mentioned earlier wing begun cutting ribs th size stock indicated plan turn page February 1976 11 Scale figures people seen more daysthese two guys startingly life-like seem make model look smaller span generous 80 inches Nice white wood skillfully fabricated aircraft structures sure hold eye 0-section LE double spars strong Below caterpillar turns graceful butterfly covering place pays take pains lettering 12 Model Aviation BAC Drone holes W-l W-2 must drilled match precisely wing mounts fuselage Lay wing out over plan beginning lower / 16 wing leading trailing edge sheet ing cap strips followed lower 1/8 X 1/4 spar Now carefully cement ribs place lower leading edge sheeting must blocked up match lower curvature ribs point after cement has dried outer tapered portion wing must blocked up /2 tip until upper surface ribs form straight line upper spar leading trailing edge sheeting now added along upper cap strips leading edge cut sheet Finally webbing plywood strut mounts added entire structure sanded thoroughly Since right wing shown plan will neces sary turn plan over build left wing little oil rubbed plan proper locations will enable lines seen back side wing tail model covered Super Monokote RC Installation will differ depend ing type power used electric placement gear shown plans either type gas electric radio gear should placed far forward possible since ship considerably tail heavy gas recommend placing receiver servos cockpit area model used three servos rudder elevator motor on-off Motor on-off accomplished usingaminiature lOamp SPDT toggle switch Radio Shack No 275-326 The soft brass handle flattened drilled 1/16 wire pushrod 1/16 DU-BRO collars side handle collars must placed stall servo either extreme off positions switch wired motor battery charged off position Notes Electric Flight As mentioned earlier extremely important keep weight aircraft absolute minimum comparing weight 21-ounce Astro-lO Cox Medalion 09 has weight approximate ly 7 ounces including fuel tank reason becomes apparent As rule thumb aircraft should weigh too much power unit itself An ex ception rule however would powered glider such Drone its extremely large wing area un common fly 3-pound 8-foot sailplane 049 engine best performance some experiment ing will often required propellers CG location etc Drone rec ommend starting 8 X 3/2 prop further experimentation 7 4 8 X 5 props could tried also extremely important pro vide adequate cooling both motor battery least hould provided air entrance exit Astro-lO motor about 14 sq batteries Flying Balance model point shown plans accomplish may may necessary add ballast nose Hopefully will re quired long grass available ship can test glided point otherwise recommend skipping procedure Select fairly calm day nice gen tle wind about 5 mph test flights launch directly wind lucky enough have hard surfaced runway dont alarmed takes 100 feet lift off Actually power quite marginal should scale type flight model such since Drone nothing powered glider Drone docile flier should satisfy requirements sport flier Above Tail wheel bracket elevator rudder horns pushrod attachments show clearly herenote control surfaces feathered Right landing gear screw-strapped plywood bottom fuselage Ry rubber-banding together fuselage end wing struts can give freely impact Means can fly strutted machine struts place Bottom Electric motor well hidden easily detailed nacelle
Edition: Model Aviation - 1976/02
Page Numbers: 10, 11, 12, 13
Edition: Model Aviation - 1976/02
Page Numbers: 10, 11, 12, 13
Real plane model pilot mechanic figures heighten illusion reality smidgeon dihedral does say model perceiving eye Author used electric power order fly outside curfew hours equivalent gas engine can used just easily three-servo electric-powered RC scale model worlds interesting airplanes just oozes alongas should its convertible Vein Schroeder DURING THE EARLY 1930s British Aircraft Corp built series tan dem two-place gliders designated BAC VII 1932 aircraft fitted landing gear motorcycle engine mounted pylon above wing Since weight additional equipment equalled weight second occupant redesigned single-seater named Plan ette proved both docile maneuver able speed range 15 40 mph Due its success three constructed 1933 company taken over Australian sailplane pilot Robert Kronfeld fitted remaining No 2 pro totype streamlined pylon re named Drone Production Drones fitted specially developed 23-hp Douglas Sprite engines April 1936 1935 production model G-AEUA flown non-stop Croydon England Berlin Germany 11 hours 25 shillings worth fuel During year 1936 20 planes built firm renamed Kronfeld Ltd Shortly afterward aircraft came known Kronfeld Super Drone Before closing down 1937 total 28 planes built delight fly low visibility could heard miles due credible noise created close prox imity propeller tips structure During war Drone camou flaged flown pilots No 609 Fighter Squadron duck-shooting sorties using 12 gauge shotgun ring-andbead sight G-AEKV sub ject model rebuilt 1950 last Drones remain air worthy 28 planes built probably no two exactly alike crashed modified during reconstruction clearly evident photos AEKV Bill Winter able furnish during con struction Drone specifications listed British Civil Aircraft follows Wingspan 39 ft 8 length 21 ft 2 height 7 ft Depending powerplant maximum speed ranged 70-73 mph cruising speed 60-65 mph initial climb 380-480 ft per min ute ceiling 12500 ft range 300-340 miles design construction Drone began spring 1974 time just regained use club flying field after flying suspended several months mainly due noise problems given back use field providing several rules fol lowed namely mufflers used flying restricted hours between 1000 am 800 pm fliers hours perfectly acceptable writer has always pre ferred avoid crowds 60powered bombs has preferred fly calmness tranquility early morning air About time remembered seeing several articles electric propulsion various model magazines After read ing information electrics could find decided case its advantages far outweighed its disadvan tages decision made go elec tric Its quietness would allow us fly hour night day completely eliminating need costly messy glow fuel glow plugs startingbatteries starters cleaner rags other goodies necessary gas engine operation ad dition ideal pusher configurations since necessary reverse battery polarity motor reverse its direction thereby eliminating need special pusher props quite limited sizes availability Also what could convenient just flip switch lever start stop motor will either ground flight Electric power its disad vantages however mainly higher initial cost higher weight need cases set on-the-field charg ing batteries Some smaller systems can charged automobile bat tery eliminating field charger usually consists two three motorcycle batteries connected series model built scale 2 inches equals 1 foot giving wingspan slight ly under 80 inches length ofjust over 42 inches Total weight came out whopping 5 lb 3 oz using Astro-lO 10 ModelAviation ur perhaps Its easier tell real plane trom modelthe model much neateri Heal plane saw light 1930 two-place glider 1932 motorcycle engine added electric power unit suggested glow en gine installation shown wishing go electric route choose electric however keep construc tion light practical especially tail model required 5 ounces ballast nose bring CG proper location suggest building tail surfaces 3/16 stock instead 1/4 using 3/32 sides possibly substituting wire tail skid steerable tail wheel radio gear Astro-lO battery follow motor manufacturers instructions kept far forward possible lightweight set wheels such Trexler used likely five ounces ballast could eliminated total weight could reduced much 12 14 ounces Elimination motor on-off switch servo could save another couple ounces thereby possibly saving total 16 ounces lowering total weight slightly over five pounds four pounds would increase performance consid erably Construction fairly straightforward throughout maximum strength aliphatic resin cement such Titebond Wilhold recommended doublers Contact cement works well Fuselage Cut sides doublers sheet stock join together using contact cement Next add formers followed top bottom sheet covering Note bottom hatch landing gear mounts plywood landing gear fabricated 3/32 music wire attached suitable clamps shown steerable tail wheel optional holes 3/16 wire wing mounts should carefully located drilled area between two plywood sides should reinforced balsa block additional strength fuselage doped give coat clear followed layer lightweight Silkspan three four coats sealer After sanding another couple coats clear before color will produce better finish Wing Tail Surfaces Cover plans Saran Wrap other clear plastic material lay out tail surfaces normal manner lighten can built 3/16 stock mentioned earlier wing begun cutting ribs th size stock indicated plan turn page February 1976 11 Scale figures people seen more daysthese two guys startingly life-like seem make model look smaller span generous 80 inches Nice white wood skillfully fabricated aircraft structures sure hold eye 0-section LE double spars strong Below caterpillar turns graceful butterfly covering place pays take pains lettering 12 Model Aviation BAC Drone holes W-l W-2 must drilled match precisely wing mounts fuselage Lay wing out over plan beginning lower / 16 wing leading trailing edge sheet ing cap strips followed lower 1/8 X 1/4 spar Now carefully cement ribs place lower leading edge sheeting must blocked up match lower curvature ribs point after cement has dried outer tapered portion wing must blocked up /2 tip until upper surface ribs form straight line upper spar leading trailing edge sheeting now added along upper cap strips leading edge cut sheet Finally webbing plywood strut mounts added entire structure sanded thoroughly Since right wing shown plan will neces sary turn plan over build left wing little oil rubbed plan proper locations will enable lines seen back side wing tail model covered Super Monokote RC Installation will differ depend ing type power used electric placement gear shown plans either type gas electric radio gear should placed far forward possible since ship considerably tail heavy gas recommend placing receiver servos cockpit area model used three servos rudder elevator motor on-off Motor on-off accomplished usingaminiature lOamp SPDT toggle switch Radio Shack No 275-326 The soft brass handle flattened drilled 1/16 wire pushrod 1/16 DU-BRO collars side handle collars must placed stall servo either extreme off positions switch wired motor battery charged off position Notes Electric Flight As mentioned earlier extremely important keep weight aircraft absolute minimum comparing weight 21-ounce Astro-lO Cox Medalion 09 has weight approximate ly 7 ounces including fuel tank reason becomes apparent As rule thumb aircraft should weigh too much power unit itself An ex ception rule however would powered glider such Drone its extremely large wing area un common fly 3-pound 8-foot sailplane 049 engine best performance some experiment ing will often required propellers CG location etc Drone rec ommend starting 8 X 3/2 prop further experimentation 7 4 8 X 5 props could tried also extremely important pro vide adequate cooling both motor battery least hould provided air entrance exit Astro-lO motor about 14 sq batteries Flying Balance model point shown plans accomplish may may necessary add ballast nose Hopefully will re quired long grass available ship can test glided point otherwise recommend skipping procedure Select fairly calm day nice gen tle wind about 5 mph test flights launch directly wind lucky enough have hard surfaced runway dont alarmed takes 100 feet lift off Actually power quite marginal should scale type flight model such since Drone nothing powered glider Drone docile flier should satisfy requirements sport flier Above Tail wheel bracket elevator rudder horns pushrod attachments show clearly herenote control surfaces feathered Right landing gear screw-strapped plywood bottom fuselage Ry rubber-banding together fuselage end wing struts can give freely impact Means can fly strutted machine struts place Bottom Electric motor well hidden easily detailed nacelle
Edition: Model Aviation - 1976/02
Page Numbers: 10, 11, 12, 13
Real plane model pilot mechanic figures heighten illusion reality smidgeon dihedral does say model perceiving eye Author used electric power order fly outside curfew hours equivalent gas engine can used just easily three-servo electric-powered RC scale model worlds interesting airplanes just oozes alongas should its convertible Vein Schroeder DURING THE EARLY 1930s British Aircraft Corp built series tan dem two-place gliders designated BAC VII 1932 aircraft fitted landing gear motorcycle engine mounted pylon above wing Since weight additional equipment equalled weight second occupant redesigned single-seater named Plan ette proved both docile maneuver able speed range 15 40 mph Due its success three constructed 1933 company taken over Australian sailplane pilot Robert Kronfeld fitted remaining No 2 pro totype streamlined pylon re named Drone Production Drones fitted specially developed 23-hp Douglas Sprite engines April 1936 1935 production model G-AEUA flown non-stop Croydon England Berlin Germany 11 hours 25 shillings worth fuel During year 1936 20 planes built firm renamed Kronfeld Ltd Shortly afterward aircraft came known Kronfeld Super Drone Before closing down 1937 total 28 planes built delight fly low visibility could heard miles due credible noise created close prox imity propeller tips structure During war Drone camou flaged flown pilots No 609 Fighter Squadron duck-shooting sorties using 12 gauge shotgun ring-andbead sight G-AEKV sub ject model rebuilt 1950 last Drones remain air worthy 28 planes built probably no two exactly alike crashed modified during reconstruction clearly evident photos AEKV Bill Winter able furnish during con struction Drone specifications listed British Civil Aircraft follows Wingspan 39 ft 8 length 21 ft 2 height 7 ft Depending powerplant maximum speed ranged 70-73 mph cruising speed 60-65 mph initial climb 380-480 ft per min ute ceiling 12500 ft range 300-340 miles design construction Drone began spring 1974 time just regained use club flying field after flying suspended several months mainly due noise problems given back use field providing several rules fol lowed namely mufflers used flying restricted hours between 1000 am 800 pm fliers hours perfectly acceptable writer has always pre ferred avoid crowds 60powered bombs has preferred fly calmness tranquility early morning air About time remembered seeing several articles electric propulsion various model magazines After read ing information electrics could find decided case its advantages far outweighed its disadvan tages decision made go elec tric Its quietness would allow us fly hour night day completely eliminating need costly messy glow fuel glow plugs startingbatteries starters cleaner rags other goodies necessary gas engine operation ad dition ideal pusher configurations since necessary reverse battery polarity motor reverse its direction thereby eliminating need special pusher props quite limited sizes availability Also what could convenient just flip switch lever start stop motor will either ground flight Electric power its disad vantages however mainly higher initial cost higher weight need cases set on-the-field charg ing batteries Some smaller systems can charged automobile bat tery eliminating field charger usually consists two three motorcycle batteries connected series model built scale 2 inches equals 1 foot giving wingspan slight ly under 80 inches length ofjust over 42 inches Total weight came out whopping 5 lb 3 oz using Astro-lO 10 ModelAviation ur perhaps Its easier tell real plane trom modelthe model much neateri Heal plane saw light 1930 two-place glider 1932 motorcycle engine added electric power unit suggested glow en gine installation shown wishing go electric route choose electric however keep construc tion light practical especially tail model required 5 ounces ballast nose bring CG proper location suggest building tail surfaces 3/16 stock instead 1/4 using 3/32 sides possibly substituting wire tail skid steerable tail wheel radio gear Astro-lO battery follow motor manufacturers instructions kept far forward possible lightweight set wheels such Trexler used likely five ounces ballast could eliminated total weight could reduced much 12 14 ounces Elimination motor on-off switch servo could save another couple ounces thereby possibly saving total 16 ounces lowering total weight slightly over five pounds four pounds would increase performance consid erably Construction fairly straightforward throughout maximum strength aliphatic resin cement such Titebond Wilhold recommended doublers Contact cement works well Fuselage Cut sides doublers sheet stock join together using contact cement Next add formers followed top bottom sheet covering Note bottom hatch landing gear mounts plywood landing gear fabricated 3/32 music wire attached suitable clamps shown steerable tail wheel optional holes 3/16 wire wing mounts should carefully located drilled area between two plywood sides should reinforced balsa block additional strength fuselage doped give coat clear followed layer lightweight Silkspan three four coats sealer After sanding another couple coats clear before color will produce better finish Wing Tail Surfaces Cover plans Saran Wrap other clear plastic material lay out tail surfaces normal manner lighten can built 3/16 stock mentioned earlier wing begun cutting ribs th size stock indicated plan turn page February 1976 11 Scale figures people seen more daysthese two guys startingly life-like seem make model look smaller span generous 80 inches Nice white wood skillfully fabricated aircraft structures sure hold eye 0-section LE double spars strong Below caterpillar turns graceful butterfly covering place pays take pains lettering 12 Model Aviation BAC Drone holes W-l W-2 must drilled match precisely wing mounts fuselage Lay wing out over plan beginning lower / 16 wing leading trailing edge sheet ing cap strips followed lower 1/8 X 1/4 spar Now carefully cement ribs place lower leading edge sheeting must blocked up match lower curvature ribs point after cement has dried outer tapered portion wing must blocked up /2 tip until upper surface ribs form straight line upper spar leading trailing edge sheeting now added along upper cap strips leading edge cut sheet Finally webbing plywood strut mounts added entire structure sanded thoroughly Since right wing shown plan will neces sary turn plan over build left wing little oil rubbed plan proper locations will enable lines seen back side wing tail model covered Super Monokote RC Installation will differ depend ing type power used electric placement gear shown plans either type gas electric radio gear should placed far forward possible since ship considerably tail heavy gas recommend placing receiver servos cockpit area model used three servos rudder elevator motor on-off Motor on-off accomplished usingaminiature lOamp SPDT toggle switch Radio Shack No 275-326 The soft brass handle flattened drilled 1/16 wire pushrod 1/16 DU-BRO collars side handle collars must placed stall servo either extreme off positions switch wired motor battery charged off position Notes Electric Flight As mentioned earlier extremely important keep weight aircraft absolute minimum comparing weight 21-ounce Astro-lO Cox Medalion 09 has weight approximate ly 7 ounces including fuel tank reason becomes apparent As rule thumb aircraft should weigh too much power unit itself An ex ception rule however would powered glider such Drone its extremely large wing area un common fly 3-pound 8-foot sailplane 049 engine best performance some experiment ing will often required propellers CG location etc Drone rec ommend starting 8 X 3/2 prop further experimentation 7 4 8 X 5 props could tried also extremely important pro vide adequate cooling both motor battery least hould provided air entrance exit Astro-lO motor about 14 sq batteries Flying Balance model point shown plans accomplish may may necessary add ballast nose Hopefully will re quired long grass available ship can test glided point otherwise recommend skipping procedure Select fairly calm day nice gen tle wind about 5 mph test flights launch directly wind lucky enough have hard surfaced runway dont alarmed takes 100 feet lift off Actually power quite marginal should scale type flight model such since Drone nothing powered glider Drone docile flier should satisfy requirements sport flier Above Tail wheel bracket elevator rudder horns pushrod attachments show clearly herenote control surfaces feathered Right landing gear screw-strapped plywood bottom fuselage Ry rubber-banding together fuselage end wing struts can give freely impact Means can fly strutted machine struts place Bottom Electric motor well hidden easily detailed nacelle
Edition: Model Aviation - 1976/02
Page Numbers: 10, 11, 12, 13
Real plane model pilot mechanic figures heighten illusion reality smidgeon dihedral does say model perceiving eye Author used electric power order fly outside curfew hours equivalent gas engine can used just easily three-servo electric-powered RC scale model worlds interesting airplanes just oozes alongas should its convertible Vein Schroeder DURING THE EARLY 1930s British Aircraft Corp built series tan dem two-place gliders designated BAC VII 1932 aircraft fitted landing gear motorcycle engine mounted pylon above wing Since weight additional equipment equalled weight second occupant redesigned single-seater named Plan ette proved both docile maneuver able speed range 15 40 mph Due its success three constructed 1933 company taken over Australian sailplane pilot Robert Kronfeld fitted remaining No 2 pro totype streamlined pylon re named Drone Production Drones fitted specially developed 23-hp Douglas Sprite engines April 1936 1935 production model G-AEUA flown non-stop Croydon England Berlin Germany 11 hours 25 shillings worth fuel During year 1936 20 planes built firm renamed Kronfeld Ltd Shortly afterward aircraft came known Kronfeld Super Drone Before closing down 1937 total 28 planes built delight fly low visibility could heard miles due credible noise created close prox imity propeller tips structure During war Drone camou flaged flown pilots No 609 Fighter Squadron duck-shooting sorties using 12 gauge shotgun ring-andbead sight G-AEKV sub ject model rebuilt 1950 last Drones remain air worthy 28 planes built probably no two exactly alike crashed modified during reconstruction clearly evident photos AEKV Bill Winter able furnish during con struction Drone specifications listed British Civil Aircraft follows Wingspan 39 ft 8 length 21 ft 2 height 7 ft Depending powerplant maximum speed ranged 70-73 mph cruising speed 60-65 mph initial climb 380-480 ft per min ute ceiling 12500 ft range 300-340 miles design construction Drone began spring 1974 time just regained use club flying field after flying suspended several months mainly due noise problems given back use field providing several rules fol lowed namely mufflers used flying restricted hours between 1000 am 800 pm fliers hours perfectly acceptable writer has always pre ferred avoid crowds 60powered bombs has preferred fly calmness tranquility early morning air About time remembered seeing several articles electric propulsion various model magazines After read ing information electrics could find decided case its advantages far outweighed its disadvan tages decision made go elec tric Its quietness would allow us fly hour night day completely eliminating need costly messy glow fuel glow plugs startingbatteries starters cleaner rags other goodies necessary gas engine operation ad dition ideal pusher configurations since necessary reverse battery polarity motor reverse its direction thereby eliminating need special pusher props quite limited sizes availability Also what could convenient just flip switch lever start stop motor will either ground flight Electric power its disad vantages however mainly higher initial cost higher weight need cases set on-the-field charg ing batteries Some smaller systems can charged automobile bat tery eliminating field charger usually consists two three motorcycle batteries connected series model built scale 2 inches equals 1 foot giving wingspan slight ly under 80 inches length ofjust over 42 inches Total weight came out whopping 5 lb 3 oz using Astro-lO 10 ModelAviation ur perhaps Its easier tell real plane trom modelthe model much neateri Heal plane saw light 1930 two-place glider 1932 motorcycle engine added electric power unit suggested glow en gine installation shown wishing go electric route choose electric however keep construc tion light practical especially tail model required 5 ounces ballast nose bring CG proper location suggest building tail surfaces 3/16 stock instead 1/4 using 3/32 sides possibly substituting wire tail skid steerable tail wheel radio gear Astro-lO battery follow motor manufacturers instructions kept far forward possible lightweight set wheels such Trexler used likely five ounces ballast could eliminated total weight could reduced much 12 14 ounces Elimination motor on-off switch servo could save another couple ounces thereby possibly saving total 16 ounces lowering total weight slightly over five pounds four pounds would increase performance consid erably Construction fairly straightforward throughout maximum strength aliphatic resin cement such Titebond Wilhold recommended doublers Contact cement works well Fuselage Cut sides doublers sheet stock join together using contact cement Next add formers followed top bottom sheet covering Note bottom hatch landing gear mounts plywood landing gear fabricated 3/32 music wire attached suitable clamps shown steerable tail wheel optional holes 3/16 wire wing mounts should carefully located drilled area between two plywood sides should reinforced balsa block additional strength fuselage doped give coat clear followed layer lightweight Silkspan three four coats sealer After sanding another couple coats clear before color will produce better finish Wing Tail Surfaces Cover plans Saran Wrap other clear plastic material lay out tail surfaces normal manner lighten can built 3/16 stock mentioned earlier wing begun cutting ribs th size stock indicated plan turn page February 1976 11 Scale figures people seen more daysthese two guys startingly life-like seem make model look smaller span generous 80 inches Nice white wood skillfully fabricated aircraft structures sure hold eye 0-section LE double spars strong Below caterpillar turns graceful butterfly covering place pays take pains lettering 12 Model Aviation BAC Drone holes W-l W-2 must drilled match precisely wing mounts fuselage Lay wing out over plan beginning lower / 16 wing leading trailing edge sheet ing cap strips followed lower 1/8 X 1/4 spar Now carefully cement ribs place lower leading edge sheeting must blocked up match lower curvature ribs point after cement has dried outer tapered portion wing must blocked up /2 tip until upper surface ribs form straight line upper spar leading trailing edge sheeting now added along upper cap strips leading edge cut sheet Finally webbing plywood strut mounts added entire structure sanded thoroughly Since right wing shown plan will neces sary turn plan over build left wing little oil rubbed plan proper locations will enable lines seen back side wing tail model covered Super Monokote RC Installation will differ depend ing type power used electric placement gear shown plans either type gas electric radio gear should placed far forward possible since ship considerably tail heavy gas recommend placing receiver servos cockpit area model used three servos rudder elevator motor on-off Motor on-off accomplished usingaminiature lOamp SPDT toggle switch Radio Shack No 275-326 The soft brass handle flattened drilled 1/16 wire pushrod 1/16 DU-BRO collars side handle collars must placed stall servo either extreme off positions switch wired motor battery charged off position Notes Electric Flight As mentioned earlier extremely important keep weight aircraft absolute minimum comparing weight 21-ounce Astro-lO Cox Medalion 09 has weight approximate ly 7 ounces including fuel tank reason becomes apparent As rule thumb aircraft should weigh too much power unit itself An ex ception rule however would powered glider such Drone its extremely large wing area un common fly 3-pound 8-foot sailplane 049 engine best performance some experiment ing will often required propellers CG location etc Drone rec ommend starting 8 X 3/2 prop further experimentation 7 4 8 X 5 props could tried also extremely important pro vide adequate cooling both motor battery least hould provided air entrance exit Astro-lO motor about 14 sq batteries Flying Balance model point shown plans accomplish may may necessary add ballast nose Hopefully will re quired long grass available ship can test glided point otherwise recommend skipping procedure Select fairly calm day nice gen tle wind about 5 mph test flights launch directly wind lucky enough have hard surfaced runway dont alarmed takes 100 feet lift off Actually power quite marginal should scale type flight model such since Drone nothing powered glider Drone docile flier should satisfy requirements sport flier Above Tail wheel bracket elevator rudder horns pushrod attachments show clearly herenote control surfaces feathered Right landing gear screw-strapped plywood bottom fuselage Ry rubber-banding together fuselage end wing struts can give freely impact Means can fly strutted machine struts place Bottom Electric motor well hidden easily detailed nacelle
