NO OCR TEXT YOU CAN make Slope Thermal Soarer completely solar-powered add convenience feature power ship putting solar cells plane solar cells used charge maintain charge onboard NiCd batteries receiver battery obvious candi date Solar cells could also used battery pack electric motor electricpowered plane glow plug battery plane onboard battery onboard ignition bat teries retract batteries etc separate panel ground could power transmitter powering receiver electric current provided solar cells can made some what exceed needs battery prior conventional battery charging becomes unnecessary decide spur moment go fly wont have worry about state charge batteries just go fly course sun must shining perfectly clear days still need batteries though very small ones may suffice allowing overall weight space savings because cant always keep solar cells direct sununless never turn sharply dont care loop fly inverted Ive using solar cells model airplanes about three years Its fun does seem have some practical advantages RC flying Others have doing also Ive discovered Cal Orr president Pomona Valley Model Airplane Club used solar cells Windfree glider part college project about five years ago plane has display several energy fairs Southern California New FAI rules RC electroflight models specifically allow use solar cells recharging flight An article British publicaton Model-Planes Review 1980 de scribed solar-powered electrics no batteries Europe Japan Theyve used large experimental RPVs piloted full-scale planes see article Bob Boucher September 1980 RCMand coverage Solar Suaan Blakely friend Don Mohr display two early models aolar power project Solar Nomad 11L Solar Wanderer 68 Model Aviation two aolarcell banks thewing Solar Wanderer thin layer foam protects cells rough landings bolar Monterey during ground charging speed things up auxiliarysolarcell panel plugs left jack fused milliamp meter monitors charge rate right jack Lai urr solar-powered Windfree Bird has flown batteries no problems close look cells Cal Orrs Windfree Twelve 05-amp series connected cells wing wings wired parallel providing about 1 amp 6 volt capability Challenger October 1981 MA recent EAA-sponsored air show Chino CA saw several Vari-eze lightplanes solar cells mounted fuselage presumably tricklecharge onboard batteries About solar cells separation negatively charged electrons positively charged holes occurs solar cells exposed light process used generate electricity light free electrons accumulate front negative side solar cell Awire connecting front back positive side solar cell allows electrons flow reunite holes silicon solar cells sunlight can converted electrical energy efficiency about 10-15% single open-circuit cell exposed sunlight will develop about 05 volt regardless cell size Higher voltages obtained connecting cells series batteries circuit closed voltage drops shortcircuited voltage drop zero current amperage depends surface area solar cell nature electrical load course amount light short-circuited 2 x 4 cm silicon solar cell exposed radiance direct full midday sunlight will generate current about 200 mA Maximum power wattage equals current Continued page 131 NOMINAL PERFORMANCE OF 2 X 4cm SILICON SOLAR CELL VOLTAGE U5 CUR RENTmo 200 150 100 C- 50 0 I 0 DARKNESS RRADIANCE 16 2c4CM SILICON SOLAR CELLS MOUNTED IN WINGS DIODE SEENOTELtWING DISCONNECT4 FUSELAGE 2 PINI 04 03 02 0-I IC 0mw/cm2 FULL SUN CURRENT-VOLTAGE CURVE FOR SILICON SOLAR CELL short circuit current circuit voltage Vmlm point maximum power Sc 0 U VOLTAGE Vm V0 J NI CADS LIlY JACKS SEE NOTE 2 B LU Note 1 diode prevents backflow current NiCdsto solar cells dim light dark ness Note 2 Switchcraft P SAX 712A jacks monitoring current output solar cells B current consumption Rx servos ammeter plug inserted jack current forced flow through ammeter removed switch closes carry current through jack II I WING4 FUSELAGE 4 _ 32 2x4CM SOLAR CELLS SERIES CONNECTED DIODE L SOLAR MONTEREY WIRING SCHEME II I I -JACK FOR AMMETER TO MON ITER SOLAR CELL OUTPUT BrSPDTIPZZII1X1 IL1EJ FELECTRIC AF ELECTRONIC MOTOR MOTOR CONTROL CHARGE JACK January 198269 .. terey Cells a. . sm quares side fuselage cells dont disturb classy lines beautiful ship SOLAR WANDERER WIRING SCHEME 0 IIIIII FEATURES INCLUDE Space battery & meter panel Transmitter compartment Room gallon fuel MASTER AIRSCRIW FLIGHTBOX KIT Master Airscrew Flight Box has features larger boxes compact handy arrangement parts cut imported mahogany plywood will take stain varnish paint finishes overall size 19W x 9W x 12 high $3at dealer 495 postpaid California add 6% Sales Tax Propeller storage Gravity closed small parts storage 7/8 aluminum handle Complete instructions & fasteners WINDSOR PROPELLER CO PO Box 112 Windsor CA 95492 * 1/3 Stand Off Scale * 92 Wingspan 1510 sq * Weight 19 21 lbs * Fiberglass Cowl Balsa Fuselage * Foam Wing Tail Section * Superior Landing Gear * For Kioritz Quadra etc * Cut Parts Sanded Shape * Full Size Rolled Plans PRICE $20995 Fine Quality Flying Models 98 RUBBER POWER KITS plus Gliders C/L RIC Accessories Books Catalog $150 4 * AJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 Sorry bout dat Look close-up basic fixture Note winding wire hanging torque meter tail boom tail assembly inserted its holder After mounting tail group second holder swung place fuselage/wing assembly slipped over winding wire winding wire slipped splatter shield Although may show after printing motor has hooked winding wire actually being wound picture snapped Note would very unlikely motor broken during winding damage model since model rigidly fastened holder wont flinch splatter shield should catch broken motor Once winding has completed motor accessible Ron smooth out knots etc next photo Ron has just removed splatter shield moved fuselage forward onto motor next-to-last picture Ron has taken final torque reading unhooked motor winding wire swung tail group place transferred motor models rear hook point model fully wound almost untouched human hands range game Ron has free rest anything else needed giving helper nervous attack cramp holding motor Finally Ron attaches prop After seating thrust bearing properly front fuselage has loosen clothespin-type clamp holding rear model lift out go fly watched Ron use thing several times seemed always command much ease possible usual twoman winding dance fliers use gadget may make Cabin popular sure makes less scary wind Bud Tenny PO Box 545 Richardson TX 75080 FF Old-Timers/Haught Continued page 63 runs own models performance Dont leave home ROG CIA agent Don Jenkins made some relevant interesting observations during 1980 SAM Champs held Wright Patterson AFB Central Indiana Aeromodelers Annual might make suggestion column sometime about importance flier checking wind direction before turning loose Old-Timer quite few Im speaking experience dont pay attention wind direction just guys California fly SAM Champs Wright-Pat AFB Just few weeks ago timed day CIA Annual Old-Timer w/added Nostalgia bash Ill bet least dozen times fliers would just let model attempt ROG have almost right angle wind Needless say resulted several ground loops broken props thrilling mo ments innocent bystanders innocent bystander can found Old-Timer contest timer like armchair quarterbackhe can see what going wrong times before goes wrong finally got handkerchief out stood momentarily front guy let him see what wind doing handker chief worked time always have Mylar streamers several just purpose helping guy line up model however likes fliers seem oblivious wind directional aids So 130 Model Aviation OUTSTANDING BIG SCALE AEROBATICS Heres equipment need give props very best balance--balance directions Caref idly crafted top grade materials BUBBLE BALANCER accomadates 3/161/49/32 prop holes Other sizes available special order Dealers invited $1595 Add t15llter HOWARD B HUEBL OEPTROS mulige haidhng hr Mmn add 4% sales tao tin CODs 8o 82 Ri 8 Mnk*no MN 58001 would suggest timers standpoint least look around before letting Old-Timer loose Some current AMA models dont seem bothered such minimal things wind direction have yet see OldTimer type engine doesnt need bit aligning prior letting er go might also add some modelers fail check obstructions takeoff path ie motorcycles toolboxes people Keep safe Anderson Pylon Just received comment Carl Goldberg regarding Anderson Pylon photo October issue page 60 pointed out Anderson Pylon built 1938 actually followed Valkyrie built 1937 wanted emphasize Anderson actually simplified smaller version Val sequence model designs really Valkyrie/Anderson Pylon/Zipper thinks Anderson actually aptly described forerunner Diamond Zipper have undisputed Authority Clarence Haugh1 RL 5 Box 16 CoeurdAlene ID 83814 Pieces/Van Gorder Continued page 66 prop test glide rubber motor Start Out 0 incidence Make several test glides Adjust wing until get smooth glide prop turning slight nosedown attitude model weighs over gram will require motor 050 x 18 inches model weight gets down near 085 gram will fly 040 045 point model weight goes down takes less rubber get up also helps performance may necessary add wash-in left panel wing test flying will necessary determine much have now completed model has proven good flier much duration get will depend upon familiar become model Fly chance Dont afraid change size length motor Record results will soon find combination will just right model have questions concerning construction adjusting Pieces address 5669 Victoryview Lane Cincinnati Ohio 45238 Please include self-addressed stamped envelope Solar Power/Blakely Continued page 69 times voltage given irradiance obtained voltage current somewhat below respective maxes see graphs Connecting cells parallel batteries provides current cell aimed away directly sun will receive less radiance generate less current Another factor consider temperature solar cells heat up will exposed full sunlight become somewhat less efficient installation design should attempt minimize heat build-up Solar Nomad II Solar Wanderer have used solar cells two Sailplanes Nomad II completed Spring 1978 Wanderer completed Summer 1978 Wanderer NiCds have never conventionally charged plane doesnt have charging jack receptacle has hundreds hours still active service RJL K61 eAmerican made Schnuerle ports eDouble ball bearing ePerry carburetor eForged & domed pistonsuggested 0 Forged &rod Retail 0-ring sealed back cover$14800 Muffler 1 nvestment cast crankcaseIncluded Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA CA 91107 213 359-0016 795-9821 January 1982 131 PUMPS IN ONLY AND OUT 1O HAND OPERA TED DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084
Edition: Model Aviation - 1982/01
Page Numbers: 67, 68, 69, 130, 131
NO OCR TEXT YOU CAN make Slope Thermal Soarer completely solar-powered add convenience feature power ship putting solar cells plane solar cells used charge maintain charge onboard NiCd batteries receiver battery obvious candi date Solar cells could also used battery pack electric motor electricpowered plane glow plug battery plane onboard battery onboard ignition bat teries retract batteries etc separate panel ground could power transmitter powering receiver electric current provided solar cells can made some what exceed needs battery prior conventional battery charging becomes unnecessary decide spur moment go fly wont have worry about state charge batteries just go fly course sun must shining perfectly clear days still need batteries though very small ones may suffice allowing overall weight space savings because cant always keep solar cells direct sununless never turn sharply dont care loop fly inverted Ive using solar cells model airplanes about three years Its fun does seem have some practical advantages RC flying Others have doing also Ive discovered Cal Orr president Pomona Valley Model Airplane Club used solar cells Windfree glider part college project about five years ago plane has display several energy fairs Southern California New FAI rules RC electroflight models specifically allow use solar cells recharging flight An article British publicaton Model-Planes Review 1980 de scribed solar-powered electrics no batteries Europe Japan Theyve used large experimental RPVs piloted full-scale planes see article Bob Boucher September 1980 RCMand coverage Solar Suaan Blakely friend Don Mohr display two early models aolar power project Solar Nomad 11L Solar Wanderer 68 Model Aviation two aolarcell banks thewing Solar Wanderer thin layer foam protects cells rough landings bolar Monterey during ground charging speed things up auxiliarysolarcell panel plugs left jack fused milliamp meter monitors charge rate right jack Lai urr solar-powered Windfree Bird has flown batteries no problems close look cells Cal Orrs Windfree Twelve 05-amp series connected cells wing wings wired parallel providing about 1 amp 6 volt capability Challenger October 1981 MA recent EAA-sponsored air show Chino CA saw several Vari-eze lightplanes solar cells mounted fuselage presumably tricklecharge onboard batteries About solar cells separation negatively charged electrons positively charged holes occurs solar cells exposed light process used generate electricity light free electrons accumulate front negative side solar cell Awire connecting front back positive side solar cell allows electrons flow reunite holes silicon solar cells sunlight can converted electrical energy efficiency about 10-15% single open-circuit cell exposed sunlight will develop about 05 volt regardless cell size Higher voltages obtained connecting cells series batteries circuit closed voltage drops shortcircuited voltage drop zero current amperage depends surface area solar cell nature electrical load course amount light short-circuited 2 x 4 cm silicon solar cell exposed radiance direct full midday sunlight will generate current about 200 mA Maximum power wattage equals current Continued page 131 NOMINAL PERFORMANCE OF 2 X 4cm SILICON SOLAR CELL VOLTAGE U5 CUR RENTmo 200 150 100 C- 50 0 I 0 DARKNESS RRADIANCE 16 2c4CM SILICON SOLAR CELLS MOUNTED IN WINGS DIODE SEENOTELtWING DISCONNECT4 FUSELAGE 2 PINI 04 03 02 0-I IC 0mw/cm2 FULL SUN CURRENT-VOLTAGE CURVE FOR SILICON SOLAR CELL short circuit current circuit voltage Vmlm point maximum power Sc 0 U VOLTAGE Vm V0 J NI CADS LIlY JACKS SEE NOTE 2 B LU Note 1 diode prevents backflow current NiCdsto solar cells dim light dark ness Note 2 Switchcraft P SAX 712A jacks monitoring current output solar cells B current consumption Rx servos ammeter plug inserted jack current forced flow through ammeter removed switch closes carry current through jack II I WING4 FUSELAGE 4 _ 32 2x4CM SOLAR CELLS SERIES CONNECTED DIODE L SOLAR MONTEREY WIRING SCHEME II I I -JACK FOR AMMETER TO MON ITER SOLAR CELL OUTPUT BrSPDTIPZZII1X1 IL1EJ FELECTRIC AF ELECTRONIC MOTOR MOTOR CONTROL CHARGE JACK January 198269 .. terey Cells a. . sm quares side fuselage cells dont disturb classy lines beautiful ship SOLAR WANDERER WIRING SCHEME 0 IIIIII FEATURES INCLUDE Space battery & meter panel Transmitter compartment Room gallon fuel MASTER AIRSCRIW FLIGHTBOX KIT Master Airscrew Flight Box has features larger boxes compact handy arrangement parts cut imported mahogany plywood will take stain varnish paint finishes overall size 19W x 9W x 12 high $3at dealer 495 postpaid California add 6% Sales Tax Propeller storage Gravity closed small parts storage 7/8 aluminum handle Complete instructions & fasteners WINDSOR PROPELLER CO PO Box 112 Windsor CA 95492 * 1/3 Stand Off Scale * 92 Wingspan 1510 sq * Weight 19 21 lbs * Fiberglass Cowl Balsa Fuselage * Foam Wing Tail Section * Superior Landing Gear * For Kioritz Quadra etc * Cut Parts Sanded Shape * Full Size Rolled Plans PRICE $20995 Fine Quality Flying Models 98 RUBBER POWER KITS plus Gliders C/L RIC Accessories Books Catalog $150 4 * AJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 Sorry bout dat Look close-up basic fixture Note winding wire hanging torque meter tail boom tail assembly inserted its holder After mounting tail group second holder swung place fuselage/wing assembly slipped over winding wire winding wire slipped splatter shield Although may show after printing motor has hooked winding wire actually being wound picture snapped Note would very unlikely motor broken during winding damage model since model rigidly fastened holder wont flinch splatter shield should catch broken motor Once winding has completed motor accessible Ron smooth out knots etc next photo Ron has just removed splatter shield moved fuselage forward onto motor next-to-last picture Ron has taken final torque reading unhooked motor winding wire swung tail group place transferred motor models rear hook point model fully wound almost untouched human hands range game Ron has free rest anything else needed giving helper nervous attack cramp holding motor Finally Ron attaches prop After seating thrust bearing properly front fuselage has loosen clothespin-type clamp holding rear model lift out go fly watched Ron use thing several times seemed always command much ease possible usual twoman winding dance fliers use gadget may make Cabin popular sure makes less scary wind Bud Tenny PO Box 545 Richardson TX 75080 FF Old-Timers/Haught Continued page 63 runs own models performance Dont leave home ROG CIA agent Don Jenkins made some relevant interesting observations during 1980 SAM Champs held Wright Patterson AFB Central Indiana Aeromodelers Annual might make suggestion column sometime about importance flier checking wind direction before turning loose Old-Timer quite few Im speaking experience dont pay attention wind direction just guys California fly SAM Champs Wright-Pat AFB Just few weeks ago timed day CIA Annual Old-Timer w/added Nostalgia bash Ill bet least dozen times fliers would just let model attempt ROG have almost right angle wind Needless say resulted several ground loops broken props thrilling mo ments innocent bystanders innocent bystander can found Old-Timer contest timer like armchair quarterbackhe can see what going wrong times before goes wrong finally got handkerchief out stood momentarily front guy let him see what wind doing handker chief worked time always have Mylar streamers several just purpose helping guy line up model however likes fliers seem oblivious wind directional aids So 130 Model Aviation OUTSTANDING BIG SCALE AEROBATICS Heres equipment need give props very best balance--balance directions Caref idly crafted top grade materials BUBBLE BALANCER accomadates 3/161/49/32 prop holes Other sizes available special order Dealers invited $1595 Add t15llter HOWARD B HUEBL OEPTROS mulige haidhng hr Mmn add 4% sales tao tin CODs 8o 82 Ri 8 Mnk*no MN 58001 would suggest timers standpoint least look around before letting Old-Timer loose Some current AMA models dont seem bothered such minimal things wind direction have yet see OldTimer type engine doesnt need bit aligning prior letting er go might also add some modelers fail check obstructions takeoff path ie motorcycles toolboxes people Keep safe Anderson Pylon Just received comment Carl Goldberg regarding Anderson Pylon photo October issue page 60 pointed out Anderson Pylon built 1938 actually followed Valkyrie built 1937 wanted emphasize Anderson actually simplified smaller version Val sequence model designs really Valkyrie/Anderson Pylon/Zipper thinks Anderson actually aptly described forerunner Diamond Zipper have undisputed Authority Clarence Haugh1 RL 5 Box 16 CoeurdAlene ID 83814 Pieces/Van Gorder Continued page 66 prop test glide rubber motor Start Out 0 incidence Make several test glides Adjust wing until get smooth glide prop turning slight nosedown attitude model weighs over gram will require motor 050 x 18 inches model weight gets down near 085 gram will fly 040 045 point model weight goes down takes less rubber get up also helps performance may necessary add wash-in left panel wing test flying will necessary determine much have now completed model has proven good flier much duration get will depend upon familiar become model Fly chance Dont afraid change size length motor Record results will soon find combination will just right model have questions concerning construction adjusting Pieces address 5669 Victoryview Lane Cincinnati Ohio 45238 Please include self-addressed stamped envelope Solar Power/Blakely Continued page 69 times voltage given irradiance obtained voltage current somewhat below respective maxes see graphs Connecting cells parallel batteries provides current cell aimed away directly sun will receive less radiance generate less current Another factor consider temperature solar cells heat up will exposed full sunlight become somewhat less efficient installation design should attempt minimize heat build-up Solar Nomad II Solar Wanderer have used solar cells two Sailplanes Nomad II completed Spring 1978 Wanderer completed Summer 1978 Wanderer NiCds have never conventionally charged plane doesnt have charging jack receptacle has hundreds hours still active service RJL K61 eAmerican made Schnuerle ports eDouble ball bearing ePerry carburetor eForged & domed pistonsuggested 0 Forged &rod Retail 0-ring sealed back cover$14800 Muffler 1 nvestment cast crankcaseIncluded Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA CA 91107 213 359-0016 795-9821 January 1982 131 PUMPS IN ONLY AND OUT 1O HAND OPERA TED DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084
Edition: Model Aviation - 1982/01
Page Numbers: 67, 68, 69, 130, 131
NO OCR TEXT YOU CAN make Slope Thermal Soarer completely solar-powered add convenience feature power ship putting solar cells plane solar cells used charge maintain charge onboard NiCd batteries receiver battery obvious candi date Solar cells could also used battery pack electric motor electricpowered plane glow plug battery plane onboard battery onboard ignition bat teries retract batteries etc separate panel ground could power transmitter powering receiver electric current provided solar cells can made some what exceed needs battery prior conventional battery charging becomes unnecessary decide spur moment go fly wont have worry about state charge batteries just go fly course sun must shining perfectly clear days still need batteries though very small ones may suffice allowing overall weight space savings because cant always keep solar cells direct sununless never turn sharply dont care loop fly inverted Ive using solar cells model airplanes about three years Its fun does seem have some practical advantages RC flying Others have doing also Ive discovered Cal Orr president Pomona Valley Model Airplane Club used solar cells Windfree glider part college project about five years ago plane has display several energy fairs Southern California New FAI rules RC electroflight models specifically allow use solar cells recharging flight An article British publicaton Model-Planes Review 1980 de scribed solar-powered electrics no batteries Europe Japan Theyve used large experimental RPVs piloted full-scale planes see article Bob Boucher September 1980 RCMand coverage Solar Suaan Blakely friend Don Mohr display two early models aolar power project Solar Nomad 11L Solar Wanderer 68 Model Aviation two aolarcell banks thewing Solar Wanderer thin layer foam protects cells rough landings bolar Monterey during ground charging speed things up auxiliarysolarcell panel plugs left jack fused milliamp meter monitors charge rate right jack Lai urr solar-powered Windfree Bird has flown batteries no problems close look cells Cal Orrs Windfree Twelve 05-amp series connected cells wing wings wired parallel providing about 1 amp 6 volt capability Challenger October 1981 MA recent EAA-sponsored air show Chino CA saw several Vari-eze lightplanes solar cells mounted fuselage presumably tricklecharge onboard batteries About solar cells separation negatively charged electrons positively charged holes occurs solar cells exposed light process used generate electricity light free electrons accumulate front negative side solar cell Awire connecting front back positive side solar cell allows electrons flow reunite holes silicon solar cells sunlight can converted electrical energy efficiency about 10-15% single open-circuit cell exposed sunlight will develop about 05 volt regardless cell size Higher voltages obtained connecting cells series batteries circuit closed voltage drops shortcircuited voltage drop zero current amperage depends surface area solar cell nature electrical load course amount light short-circuited 2 x 4 cm silicon solar cell exposed radiance direct full midday sunlight will generate current about 200 mA Maximum power wattage equals current Continued page 131 NOMINAL PERFORMANCE OF 2 X 4cm SILICON SOLAR CELL VOLTAGE U5 CUR RENTmo 200 150 100 C- 50 0 I 0 DARKNESS RRADIANCE 16 2c4CM SILICON SOLAR CELLS MOUNTED IN WINGS DIODE SEENOTELtWING DISCONNECT4 FUSELAGE 2 PINI 04 03 02 0-I IC 0mw/cm2 FULL SUN CURRENT-VOLTAGE CURVE FOR SILICON SOLAR CELL short circuit current circuit voltage Vmlm point maximum power Sc 0 U VOLTAGE Vm V0 J NI CADS LIlY JACKS SEE NOTE 2 B LU Note 1 diode prevents backflow current NiCdsto solar cells dim light dark ness Note 2 Switchcraft P SAX 712A jacks monitoring current output solar cells B current consumption Rx servos ammeter plug inserted jack current forced flow through ammeter removed switch closes carry current through jack II I WING4 FUSELAGE 4 _ 32 2x4CM SOLAR CELLS SERIES CONNECTED DIODE L SOLAR MONTEREY WIRING SCHEME II I I -JACK FOR AMMETER TO MON ITER SOLAR CELL OUTPUT BrSPDTIPZZII1X1 IL1EJ FELECTRIC AF ELECTRONIC MOTOR MOTOR CONTROL CHARGE JACK January 198269 .. terey Cells a. . sm quares side fuselage cells dont disturb classy lines beautiful ship SOLAR WANDERER WIRING SCHEME 0 IIIIII FEATURES INCLUDE Space battery & meter panel Transmitter compartment Room gallon fuel MASTER AIRSCRIW FLIGHTBOX KIT Master Airscrew Flight Box has features larger boxes compact handy arrangement parts cut imported mahogany plywood will take stain varnish paint finishes overall size 19W x 9W x 12 high $3at dealer 495 postpaid California add 6% Sales Tax Propeller storage Gravity closed small parts storage 7/8 aluminum handle Complete instructions & fasteners WINDSOR PROPELLER CO PO Box 112 Windsor CA 95492 * 1/3 Stand Off Scale * 92 Wingspan 1510 sq * Weight 19 21 lbs * Fiberglass Cowl Balsa Fuselage * Foam Wing Tail Section * Superior Landing Gear * For Kioritz Quadra etc * Cut Parts Sanded Shape * Full Size Rolled Plans PRICE $20995 Fine Quality Flying Models 98 RUBBER POWER KITS plus Gliders C/L RIC Accessories Books Catalog $150 4 * AJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 Sorry bout dat Look close-up basic fixture Note winding wire hanging torque meter tail boom tail assembly inserted its holder After mounting tail group second holder swung place fuselage/wing assembly slipped over winding wire winding wire slipped splatter shield Although may show after printing motor has hooked winding wire actually being wound picture snapped Note would very unlikely motor broken during winding damage model since model rigidly fastened holder wont flinch splatter shield should catch broken motor Once winding has completed motor accessible Ron smooth out knots etc next photo Ron has just removed splatter shield moved fuselage forward onto motor next-to-last picture Ron has taken final torque reading unhooked motor winding wire swung tail group place transferred motor models rear hook point model fully wound almost untouched human hands range game Ron has free rest anything else needed giving helper nervous attack cramp holding motor Finally Ron attaches prop After seating thrust bearing properly front fuselage has loosen clothespin-type clamp holding rear model lift out go fly watched Ron use thing several times seemed always command much ease possible usual twoman winding dance fliers use gadget may make Cabin popular sure makes less scary wind Bud Tenny PO Box 545 Richardson TX 75080 FF Old-Timers/Haught Continued page 63 runs own models performance Dont leave home ROG CIA agent Don Jenkins made some relevant interesting observations during 1980 SAM Champs held Wright Patterson AFB Central Indiana Aeromodelers Annual might make suggestion column sometime about importance flier checking wind direction before turning loose Old-Timer quite few Im speaking experience dont pay attention wind direction just guys California fly SAM Champs Wright-Pat AFB Just few weeks ago timed day CIA Annual Old-Timer w/added Nostalgia bash Ill bet least dozen times fliers would just let model attempt ROG have almost right angle wind Needless say resulted several ground loops broken props thrilling mo ments innocent bystanders innocent bystander can found Old-Timer contest timer like armchair quarterbackhe can see what going wrong times before goes wrong finally got handkerchief out stood momentarily front guy let him see what wind doing handker chief worked time always have Mylar streamers several just purpose helping guy line up model however likes fliers seem oblivious wind directional aids So 130 Model Aviation OUTSTANDING BIG SCALE AEROBATICS Heres equipment need give props very best balance--balance directions Caref idly crafted top grade materials BUBBLE BALANCER accomadates 3/161/49/32 prop holes Other sizes available special order Dealers invited $1595 Add t15llter HOWARD B HUEBL OEPTROS mulige haidhng hr Mmn add 4% sales tao tin CODs 8o 82 Ri 8 Mnk*no MN 58001 would suggest timers standpoint least look around before letting Old-Timer loose Some current AMA models dont seem bothered such minimal things wind direction have yet see OldTimer type engine doesnt need bit aligning prior letting er go might also add some modelers fail check obstructions takeoff path ie motorcycles toolboxes people Keep safe Anderson Pylon Just received comment Carl Goldberg regarding Anderson Pylon photo October issue page 60 pointed out Anderson Pylon built 1938 actually followed Valkyrie built 1937 wanted emphasize Anderson actually simplified smaller version Val sequence model designs really Valkyrie/Anderson Pylon/Zipper thinks Anderson actually aptly described forerunner Diamond Zipper have undisputed Authority Clarence Haugh1 RL 5 Box 16 CoeurdAlene ID 83814 Pieces/Van Gorder Continued page 66 prop test glide rubber motor Start Out 0 incidence Make several test glides Adjust wing until get smooth glide prop turning slight nosedown attitude model weighs over gram will require motor 050 x 18 inches model weight gets down near 085 gram will fly 040 045 point model weight goes down takes less rubber get up also helps performance may necessary add wash-in left panel wing test flying will necessary determine much have now completed model has proven good flier much duration get will depend upon familiar become model Fly chance Dont afraid change size length motor Record results will soon find combination will just right model have questions concerning construction adjusting Pieces address 5669 Victoryview Lane Cincinnati Ohio 45238 Please include self-addressed stamped envelope Solar Power/Blakely Continued page 69 times voltage given irradiance obtained voltage current somewhat below respective maxes see graphs Connecting cells parallel batteries provides current cell aimed away directly sun will receive less radiance generate less current Another factor consider temperature solar cells heat up will exposed full sunlight become somewhat less efficient installation design should attempt minimize heat build-up Solar Nomad II Solar Wanderer have used solar cells two Sailplanes Nomad II completed Spring 1978 Wanderer completed Summer 1978 Wanderer NiCds have never conventionally charged plane doesnt have charging jack receptacle has hundreds hours still active service RJL K61 eAmerican made Schnuerle ports eDouble ball bearing ePerry carburetor eForged & domed pistonsuggested 0 Forged &rod Retail 0-ring sealed back cover$14800 Muffler 1 nvestment cast crankcaseIncluded Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA CA 91107 213 359-0016 795-9821 January 1982 131 PUMPS IN ONLY AND OUT 1O HAND OPERA TED DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084
Edition: Model Aviation - 1982/01
Page Numbers: 67, 68, 69, 130, 131
NO OCR TEXT YOU CAN make Slope Thermal Soarer completely solar-powered add convenience feature power ship putting solar cells plane solar cells used charge maintain charge onboard NiCd batteries receiver battery obvious candi date Solar cells could also used battery pack electric motor electricpowered plane glow plug battery plane onboard battery onboard ignition bat teries retract batteries etc separate panel ground could power transmitter powering receiver electric current provided solar cells can made some what exceed needs battery prior conventional battery charging becomes unnecessary decide spur moment go fly wont have worry about state charge batteries just go fly course sun must shining perfectly clear days still need batteries though very small ones may suffice allowing overall weight space savings because cant always keep solar cells direct sununless never turn sharply dont care loop fly inverted Ive using solar cells model airplanes about three years Its fun does seem have some practical advantages RC flying Others have doing also Ive discovered Cal Orr president Pomona Valley Model Airplane Club used solar cells Windfree glider part college project about five years ago plane has display several energy fairs Southern California New FAI rules RC electroflight models specifically allow use solar cells recharging flight An article British publicaton Model-Planes Review 1980 de scribed solar-powered electrics no batteries Europe Japan Theyve used large experimental RPVs piloted full-scale planes see article Bob Boucher September 1980 RCMand coverage Solar Suaan Blakely friend Don Mohr display two early models aolar power project Solar Nomad 11L Solar Wanderer 68 Model Aviation two aolarcell banks thewing Solar Wanderer thin layer foam protects cells rough landings bolar Monterey during ground charging speed things up auxiliarysolarcell panel plugs left jack fused milliamp meter monitors charge rate right jack Lai urr solar-powered Windfree Bird has flown batteries no problems close look cells Cal Orrs Windfree Twelve 05-amp series connected cells wing wings wired parallel providing about 1 amp 6 volt capability Challenger October 1981 MA recent EAA-sponsored air show Chino CA saw several Vari-eze lightplanes solar cells mounted fuselage presumably tricklecharge onboard batteries About solar cells separation negatively charged electrons positively charged holes occurs solar cells exposed light process used generate electricity light free electrons accumulate front negative side solar cell Awire connecting front back positive side solar cell allows electrons flow reunite holes silicon solar cells sunlight can converted electrical energy efficiency about 10-15% single open-circuit cell exposed sunlight will develop about 05 volt regardless cell size Higher voltages obtained connecting cells series batteries circuit closed voltage drops shortcircuited voltage drop zero current amperage depends surface area solar cell nature electrical load course amount light short-circuited 2 x 4 cm silicon solar cell exposed radiance direct full midday sunlight will generate current about 200 mA Maximum power wattage equals current Continued page 131 NOMINAL PERFORMANCE OF 2 X 4cm SILICON SOLAR CELL VOLTAGE U5 CUR RENTmo 200 150 100 C- 50 0 I 0 DARKNESS RRADIANCE 16 2c4CM SILICON SOLAR CELLS MOUNTED IN WINGS DIODE SEENOTELtWING DISCONNECT4 FUSELAGE 2 PINI 04 03 02 0-I IC 0mw/cm2 FULL SUN CURRENT-VOLTAGE CURVE FOR SILICON SOLAR CELL short circuit current circuit voltage Vmlm point maximum power Sc 0 U VOLTAGE Vm V0 J NI CADS LIlY JACKS SEE NOTE 2 B LU Note 1 diode prevents backflow current NiCdsto solar cells dim light dark ness Note 2 Switchcraft P SAX 712A jacks monitoring current output solar cells B current consumption Rx servos ammeter plug inserted jack current forced flow through ammeter removed switch closes carry current through jack II I WING4 FUSELAGE 4 _ 32 2x4CM SOLAR CELLS SERIES CONNECTED DIODE L SOLAR MONTEREY WIRING SCHEME II I I -JACK FOR AMMETER TO MON ITER SOLAR CELL OUTPUT BrSPDTIPZZII1X1 IL1EJ FELECTRIC AF ELECTRONIC MOTOR MOTOR CONTROL CHARGE JACK January 198269 .. terey Cells a. . sm quares side fuselage cells dont disturb classy lines beautiful ship SOLAR WANDERER WIRING SCHEME 0 IIIIII FEATURES INCLUDE Space battery & meter panel Transmitter compartment Room gallon fuel MASTER AIRSCRIW FLIGHTBOX KIT Master Airscrew Flight Box has features larger boxes compact handy arrangement parts cut imported mahogany plywood will take stain varnish paint finishes overall size 19W x 9W x 12 high $3at dealer 495 postpaid California add 6% Sales Tax Propeller storage Gravity closed small parts storage 7/8 aluminum handle Complete instructions & fasteners WINDSOR PROPELLER CO PO Box 112 Windsor CA 95492 * 1/3 Stand Off Scale * 92 Wingspan 1510 sq * Weight 19 21 lbs * Fiberglass Cowl Balsa Fuselage * Foam Wing Tail Section * Superior Landing Gear * For Kioritz Quadra etc * Cut Parts Sanded Shape * Full Size Rolled Plans PRICE $20995 Fine Quality Flying Models 98 RUBBER POWER KITS plus Gliders C/L RIC Accessories Books Catalog $150 4 * AJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 Sorry bout dat Look close-up basic fixture Note winding wire hanging torque meter tail boom tail assembly inserted its holder After mounting tail group second holder swung place fuselage/wing assembly slipped over winding wire winding wire slipped splatter shield Although may show after printing motor has hooked winding wire actually being wound picture snapped Note would very unlikely motor broken during winding damage model since model rigidly fastened holder wont flinch splatter shield should catch broken motor Once winding has completed motor accessible Ron smooth out knots etc next photo Ron has just removed splatter shield moved fuselage forward onto motor next-to-last picture Ron has taken final torque reading unhooked motor winding wire swung tail group place transferred motor models rear hook point model fully wound almost untouched human hands range game Ron has free rest anything else needed giving helper nervous attack cramp holding motor Finally Ron attaches prop After seating thrust bearing properly front fuselage has loosen clothespin-type clamp holding rear model lift out go fly watched Ron use thing several times seemed always command much ease possible usual twoman winding dance fliers use gadget may make Cabin popular sure makes less scary wind Bud Tenny PO Box 545 Richardson TX 75080 FF Old-Timers/Haught Continued page 63 runs own models performance Dont leave home ROG CIA agent Don Jenkins made some relevant interesting observations during 1980 SAM Champs held Wright Patterson AFB Central Indiana Aeromodelers Annual might make suggestion column sometime about importance flier checking wind direction before turning loose Old-Timer quite few Im speaking experience dont pay attention wind direction just guys California fly SAM Champs Wright-Pat AFB Just few weeks ago timed day CIA Annual Old-Timer w/added Nostalgia bash Ill bet least dozen times fliers would just let model attempt ROG have almost right angle wind Needless say resulted several ground loops broken props thrilling mo ments innocent bystanders innocent bystander can found Old-Timer contest timer like armchair quarterbackhe can see what going wrong times before goes wrong finally got handkerchief out stood momentarily front guy let him see what wind doing handker chief worked time always have Mylar streamers several just purpose helping guy line up model however likes fliers seem oblivious wind directional aids So 130 Model Aviation OUTSTANDING BIG SCALE AEROBATICS Heres equipment need give props very best balance--balance directions Caref idly crafted top grade materials BUBBLE BALANCER accomadates 3/161/49/32 prop holes Other sizes available special order Dealers invited $1595 Add t15llter HOWARD B HUEBL OEPTROS mulige haidhng hr Mmn add 4% sales tao tin CODs 8o 82 Ri 8 Mnk*no MN 58001 would suggest timers standpoint least look around before letting Old-Timer loose Some current AMA models dont seem bothered such minimal things wind direction have yet see OldTimer type engine doesnt need bit aligning prior letting er go might also add some modelers fail check obstructions takeoff path ie motorcycles toolboxes people Keep safe Anderson Pylon Just received comment Carl Goldberg regarding Anderson Pylon photo October issue page 60 pointed out Anderson Pylon built 1938 actually followed Valkyrie built 1937 wanted emphasize Anderson actually simplified smaller version Val sequence model designs really Valkyrie/Anderson Pylon/Zipper thinks Anderson actually aptly described forerunner Diamond Zipper have undisputed Authority Clarence Haugh1 RL 5 Box 16 CoeurdAlene ID 83814 Pieces/Van Gorder Continued page 66 prop test glide rubber motor Start Out 0 incidence Make several test glides Adjust wing until get smooth glide prop turning slight nosedown attitude model weighs over gram will require motor 050 x 18 inches model weight gets down near 085 gram will fly 040 045 point model weight goes down takes less rubber get up also helps performance may necessary add wash-in left panel wing test flying will necessary determine much have now completed model has proven good flier much duration get will depend upon familiar become model Fly chance Dont afraid change size length motor Record results will soon find combination will just right model have questions concerning construction adjusting Pieces address 5669 Victoryview Lane Cincinnati Ohio 45238 Please include self-addressed stamped envelope Solar Power/Blakely Continued page 69 times voltage given irradiance obtained voltage current somewhat below respective maxes see graphs Connecting cells parallel batteries provides current cell aimed away directly sun will receive less radiance generate less current Another factor consider temperature solar cells heat up will exposed full sunlight become somewhat less efficient installation design should attempt minimize heat build-up Solar Nomad II Solar Wanderer have used solar cells two Sailplanes Nomad II completed Spring 1978 Wanderer completed Summer 1978 Wanderer NiCds have never conventionally charged plane doesnt have charging jack receptacle has hundreds hours still active service RJL K61 eAmerican made Schnuerle ports eDouble ball bearing ePerry carburetor eForged & domed pistonsuggested 0 Forged &rod Retail 0-ring sealed back cover$14800 Muffler 1 nvestment cast crankcaseIncluded Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA CA 91107 213 359-0016 795-9821 January 1982 131 PUMPS IN ONLY AND OUT 1O HAND OPERA TED DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084
Edition: Model Aviation - 1982/01
Page Numbers: 67, 68, 69, 130, 131
NO OCR TEXT YOU CAN make Slope Thermal Soarer completely solar-powered add convenience feature power ship putting solar cells plane solar cells used charge maintain charge onboard NiCd batteries receiver battery obvious candi date Solar cells could also used battery pack electric motor electricpowered plane glow plug battery plane onboard battery onboard ignition bat teries retract batteries etc separate panel ground could power transmitter powering receiver electric current provided solar cells can made some what exceed needs battery prior conventional battery charging becomes unnecessary decide spur moment go fly wont have worry about state charge batteries just go fly course sun must shining perfectly clear days still need batteries though very small ones may suffice allowing overall weight space savings because cant always keep solar cells direct sununless never turn sharply dont care loop fly inverted Ive using solar cells model airplanes about three years Its fun does seem have some practical advantages RC flying Others have doing also Ive discovered Cal Orr president Pomona Valley Model Airplane Club used solar cells Windfree glider part college project about five years ago plane has display several energy fairs Southern California New FAI rules RC electroflight models specifically allow use solar cells recharging flight An article British publicaton Model-Planes Review 1980 de scribed solar-powered electrics no batteries Europe Japan Theyve used large experimental RPVs piloted full-scale planes see article Bob Boucher September 1980 RCMand coverage Solar Suaan Blakely friend Don Mohr display two early models aolar power project Solar Nomad 11L Solar Wanderer 68 Model Aviation two aolarcell banks thewing Solar Wanderer thin layer foam protects cells rough landings bolar Monterey during ground charging speed things up auxiliarysolarcell panel plugs left jack fused milliamp meter monitors charge rate right jack Lai urr solar-powered Windfree Bird has flown batteries no problems close look cells Cal Orrs Windfree Twelve 05-amp series connected cells wing wings wired parallel providing about 1 amp 6 volt capability Challenger October 1981 MA recent EAA-sponsored air show Chino CA saw several Vari-eze lightplanes solar cells mounted fuselage presumably tricklecharge onboard batteries About solar cells separation negatively charged electrons positively charged holes occurs solar cells exposed light process used generate electricity light free electrons accumulate front negative side solar cell Awire connecting front back positive side solar cell allows electrons flow reunite holes silicon solar cells sunlight can converted electrical energy efficiency about 10-15% single open-circuit cell exposed sunlight will develop about 05 volt regardless cell size Higher voltages obtained connecting cells series batteries circuit closed voltage drops shortcircuited voltage drop zero current amperage depends surface area solar cell nature electrical load course amount light short-circuited 2 x 4 cm silicon solar cell exposed radiance direct full midday sunlight will generate current about 200 mA Maximum power wattage equals current Continued page 131 NOMINAL PERFORMANCE OF 2 X 4cm SILICON SOLAR CELL VOLTAGE U5 CUR RENTmo 200 150 100 C- 50 0 I 0 DARKNESS RRADIANCE 16 2c4CM SILICON SOLAR CELLS MOUNTED IN WINGS DIODE SEENOTELtWING DISCONNECT4 FUSELAGE 2 PINI 04 03 02 0-I IC 0mw/cm2 FULL SUN CURRENT-VOLTAGE CURVE FOR SILICON SOLAR CELL short circuit current circuit voltage Vmlm point maximum power Sc 0 U VOLTAGE Vm V0 J NI CADS LIlY JACKS SEE NOTE 2 B LU Note 1 diode prevents backflow current NiCdsto solar cells dim light dark ness Note 2 Switchcraft P SAX 712A jacks monitoring current output solar cells B current consumption Rx servos ammeter plug inserted jack current forced flow through ammeter removed switch closes carry current through jack II I WING4 FUSELAGE 4 _ 32 2x4CM SOLAR CELLS SERIES CONNECTED DIODE L SOLAR MONTEREY WIRING SCHEME II I I -JACK FOR AMMETER TO MON ITER SOLAR CELL OUTPUT BrSPDTIPZZII1X1 IL1EJ FELECTRIC AF ELECTRONIC MOTOR MOTOR CONTROL CHARGE JACK January 198269 .. terey Cells a. . sm quares side fuselage cells dont disturb classy lines beautiful ship SOLAR WANDERER WIRING SCHEME 0 IIIIII FEATURES INCLUDE Space battery & meter panel Transmitter compartment Room gallon fuel MASTER AIRSCRIW FLIGHTBOX KIT Master Airscrew Flight Box has features larger boxes compact handy arrangement parts cut imported mahogany plywood will take stain varnish paint finishes overall size 19W x 9W x 12 high $3at dealer 495 postpaid California add 6% Sales Tax Propeller storage Gravity closed small parts storage 7/8 aluminum handle Complete instructions & fasteners WINDSOR PROPELLER CO PO Box 112 Windsor CA 95492 * 1/3 Stand Off Scale * 92 Wingspan 1510 sq * Weight 19 21 lbs * Fiberglass Cowl Balsa Fuselage * Foam Wing Tail Section * Superior Landing Gear * For Kioritz Quadra etc * Cut Parts Sanded Shape * Full Size Rolled Plans PRICE $20995 Fine Quality Flying Models 98 RUBBER POWER KITS plus Gliders C/L RIC Accessories Books Catalog $150 4 * AJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 Sorry bout dat Look close-up basic fixture Note winding wire hanging torque meter tail boom tail assembly inserted its holder After mounting tail group second holder swung place fuselage/wing assembly slipped over winding wire winding wire slipped splatter shield Although may show after printing motor has hooked winding wire actually being wound picture snapped Note would very unlikely motor broken during winding damage model since model rigidly fastened holder wont flinch splatter shield should catch broken motor Once winding has completed motor accessible Ron smooth out knots etc next photo Ron has just removed splatter shield moved fuselage forward onto motor next-to-last picture Ron has taken final torque reading unhooked motor winding wire swung tail group place transferred motor models rear hook point model fully wound almost untouched human hands range game Ron has free rest anything else needed giving helper nervous attack cramp holding motor Finally Ron attaches prop After seating thrust bearing properly front fuselage has loosen clothespin-type clamp holding rear model lift out go fly watched Ron use thing several times seemed always command much ease possible usual twoman winding dance fliers use gadget may make Cabin popular sure makes less scary wind Bud Tenny PO Box 545 Richardson TX 75080 FF Old-Timers/Haught Continued page 63 runs own models performance Dont leave home ROG CIA agent Don Jenkins made some relevant interesting observations during 1980 SAM Champs held Wright Patterson AFB Central Indiana Aeromodelers Annual might make suggestion column sometime about importance flier checking wind direction before turning loose Old-Timer quite few Im speaking experience dont pay attention wind direction just guys California fly SAM Champs Wright-Pat AFB Just few weeks ago timed day CIA Annual Old-Timer w/added Nostalgia bash Ill bet least dozen times fliers would just let model attempt ROG have almost right angle wind Needless say resulted several ground loops broken props thrilling mo ments innocent bystanders innocent bystander can found Old-Timer contest timer like armchair quarterbackhe can see what going wrong times before goes wrong finally got handkerchief out stood momentarily front guy let him see what wind doing handker chief worked time always have Mylar streamers several just purpose helping guy line up model however likes fliers seem oblivious wind directional aids So 130 Model Aviation OUTSTANDING BIG SCALE AEROBATICS Heres equipment need give props very best balance--balance directions Caref idly crafted top grade materials BUBBLE BALANCER accomadates 3/161/49/32 prop holes Other sizes available special order Dealers invited $1595 Add t15llter HOWARD B HUEBL OEPTROS mulige haidhng hr Mmn add 4% sales tao tin CODs 8o 82 Ri 8 Mnk*no MN 58001 would suggest timers standpoint least look around before letting Old-Timer loose Some current AMA models dont seem bothered such minimal things wind direction have yet see OldTimer type engine doesnt need bit aligning prior letting er go might also add some modelers fail check obstructions takeoff path ie motorcycles toolboxes people Keep safe Anderson Pylon Just received comment Carl Goldberg regarding Anderson Pylon photo October issue page 60 pointed out Anderson Pylon built 1938 actually followed Valkyrie built 1937 wanted emphasize Anderson actually simplified smaller version Val sequence model designs really Valkyrie/Anderson Pylon/Zipper thinks Anderson actually aptly described forerunner Diamond Zipper have undisputed Authority Clarence Haugh1 RL 5 Box 16 CoeurdAlene ID 83814 Pieces/Van Gorder Continued page 66 prop test glide rubber motor Start Out 0 incidence Make several test glides Adjust wing until get smooth glide prop turning slight nosedown attitude model weighs over gram will require motor 050 x 18 inches model weight gets down near 085 gram will fly 040 045 point model weight goes down takes less rubber get up also helps performance may necessary add wash-in left panel wing test flying will necessary determine much have now completed model has proven good flier much duration get will depend upon familiar become model Fly chance Dont afraid change size length motor Record results will soon find combination will just right model have questions concerning construction adjusting Pieces address 5669 Victoryview Lane Cincinnati Ohio 45238 Please include self-addressed stamped envelope Solar Power/Blakely Continued page 69 times voltage given irradiance obtained voltage current somewhat below respective maxes see graphs Connecting cells parallel batteries provides current cell aimed away directly sun will receive less radiance generate less current Another factor consider temperature solar cells heat up will exposed full sunlight become somewhat less efficient installation design should attempt minimize heat build-up Solar Nomad II Solar Wanderer have used solar cells two Sailplanes Nomad II completed Spring 1978 Wanderer completed Summer 1978 Wanderer NiCds have never conventionally charged plane doesnt have charging jack receptacle has hundreds hours still active service RJL K61 eAmerican made Schnuerle ports eDouble ball bearing ePerry carburetor eForged & domed pistonsuggested 0 Forged &rod Retail 0-ring sealed back cover$14800 Muffler 1 nvestment cast crankcaseIncluded Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA CA 91107 213 359-0016 795-9821 January 1982 131 PUMPS IN ONLY AND OUT 1O HAND OPERA TED DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084