Radio Control E lectrics Bob Kopski EARLY reader reaction April column has swift sure voluminous months column being written just few days after April 1987 issue MA has begun appear across country everyone has received subscription copy yet reader response coming record levels Never before has columns brought such strong initial reaction Electric suppliers take note Whats fuss about Well April column offered thoughts establishing meaningful Electric model motor specification standards evidently offering hit home lots readers Large numbers have made very clear too want meaningful motor descriptions/specifications standards absolutely no has written contrary response impressed very much came major mail-order hobby provider told difficulties has What motor goes what plane customer inquiries Another person called states distant hearty Congratulations re sponded Thank youbut what responded April column Well folks since positively reactive model-motor matter let suggest simple thing Write starters write Electric Aeromodel ing Association EAA official AMA-recognized Special Interest Group Electric folks best posi tioned guide Electric matters us hoped represent desires address EAA PO Box 9 Midway City CA 92655 you might consider joining forces Annual membership EAA $10 gets regular newsletters dedicated Electric Another obvious place make feelings known model industry itself Write good folks make Electric stuff tell feel Refer column April issue dont let anybody make feel like dont know what youre talking about Remember Electric hold Other likely places write two people associated other model maga zines other Electric columnists editors columnists know welcome readers letters enough press subject responsible writer will surely react through column As editors think can taken granted very seriously interested hobby whole After its livelihood adherents major aspect hobby Electric destined become have something say editors usually very accommodating via letters editor whatever name call column letter could certainly wind up way may very well become quite influential getting what seem want meaning ful simple Electric model-motor-specification standards Thank making feel very good too An Electric meet scheduled May 9 1987 Union Lake Flying Organization Union Lake MI Third Annual Electric Fly scheduled activities include Best Acro batic Best Scale Most Unique Best Finish Triple Duration Plaques will awarded categories make things nicer free breakfast will given enter very best things about meet its close home Keith ShawGrand Electronaire Su premeand participates youll get show life can get information meet Ken Myers 9043 Satellite Dr Union Lake MI 48085 phone number 313 698-4668 Next SAM 76 announces Old-Timer meet scheduled Sunday May 17 1987 Pennfield Middle School grounds Hatfield PA Among several Gas O-T events Electric event simplicity itself Open Electric O-Ts planes must conform SAM model requirements power system will three-flights-on-one-charge format seven-minute maxes CD Ralph Biddle 2156 Street Road Warrington PA 18976 Next Eastern Free Flight Conference has announced 1987 East Coast Free Flight Championships held Armys Gale ville NY Training Facility June 27-28 1987 meet offers events including Electric ones can obtain information CD Don Ross 38 Churchill Rd Cresskill NJ 07626 phone number 201 568-5272 Finally Keystone RC Club Hatfield PA near Philadelphia has scheduled Eighth Annual Electric Fly weekend Sep tember 19-20 1987 Over years meet has grown size fame extent must now moved larger field plans 50 Model Aviation Author Kopekl explains twin-motor Electrics wiring shouldnt just two singlemotor installations plane Speed controller could replaced switch Recognize its Midwest Esquire Jack Gollahers Santa Maria CA scratch-right outof lateFifties Ken MyersUnion built ship spans big 6 ft uses old-styleLake WI powered ltwlthanAstroloferrite/ Astro 10 dozen 550 mAh cells Jackgear drive dozen 1 200mAh cells add some lightness craftsTop Flit 11 xepuiisthee8-ozcraftrightup original 4-lb weight after flightoff snow Plans recent issue characteristics improved lotModel Builder Dr John Mountloy Winston-Salem NC built 54-in-span Taibi Powerhouse Power Robbe SOOSE 251 gear reduction driving Robbe 3-biaded folding prop Power pack eighteen 900 mAh Sanyo red-case cells weight 6 lb 2 oz craft needs 1100 sq wing area Covering silk dope Whats now place field nearby Quakertownonly 20-minute drive KRC club field location site previous KRC Electric Fly gatherings detailed informa don can obtained sending SASE CD Bruce Fenstermacher 636 Schoolhouse Rd Telford PA 18969 As interesting sidelight Bruce has flown several Electrics over years also enjoys flying Gas Helicoptersboth model full-scale Finally thats planned comes pass Grand Electronaire Supreme Keith Shaw will again attend years meetand just happen know what new goody has boards year aint tellin what can assure you wont want miss biggest best Electric Fly country Am biased what motor power supply bench item growing interest more readers seems folks want some way benchcheck motors props having charge up flight battery Thats very understand ableI myself readers have enquired about power supply personally usethe pictured part three About Electrics series ran MA few years ago particular installment appeared November 1983 issue Im amazed readers retain refer 10-part mini-course Anyway often inquiry requests information build like similar supply can obtained Well Im very sorry say power supply one-of-a-kind its constructed junk-box parts major component failed Id personally hard-pressed replace very much dislikeand feel uncomfortable withthe situation its best could myself reason Im predicament buy such power supplyor build its equivalent new partswould cost small fortune Some readers have found out firsthand Realizing interested such power supply may someday have need replacement Ive conscientiously looking way provide capacity needed reasonable cost effort So farno luck Such supply should have smoothly-variable output up about 30 volts 30 amps adequately cover needs almost kilowatt total capability though readers using flight systems having anywhere near total power individual capabilities voltage current needed seems some readers may want run 40s so-called equivalent 18 cells about 28 volts Other readers just want run cobalt 05s six- seven-cell motors 12-volt supply would suit needs have 20-amp current handing capability Thus suitable bench supply should have combined capabilities describedjust things make item very costly quite bulky heavy besides Nevertheless should lucky find suitable approach share assured youll find future issue MA Before leave topic completely Id like respond right Ive done individuals several occasions No cannot take household auto battery charger Astro 4005 B AC/DC charger connect its output now discontinued Astro Voltage Booster Radio Shack Voltage Inverter attempt get higher voltages necessary bench-run cobalt 15/25/40 doing Continued page 163 Detailed screen printed designs brilliant colors FRONT BACK ot BLACK premium weight USA made tshirts Sizes 5 M L XLCatalog 8100 Dynamic cap designs clearly Leading Edge Technology' Cap size adjustable sizt fits Available Shins two-sided $1295 A/F-4 F-lBB-iSR-71 c-s F-i4 Nightmare F-i4 A-7B-52Flil 0-130 F-ill Terrorize F-is A-bT-3eKO-135 C-141 F-lB Shijie F-16 AH-1M-i6-52 Arms Deal Available flIfls one-sided $1095 F-i Ii Libyian SunriseF-i Ii Warsaw Pact 6-52 Reach Out6-52 Send Beat Minimum 24 Shirt Order $250 ott shirt Available Caps $795 F-iSSR-il6-25P-47Space Shuttle F-16B-i B6-29ZeroTop Gun Minimum 24 Cap Order $150 oft cap ShippingFirstEa Addl Shirt/CapShirt/Cap USA$200$ 50 Canada$350$100 Other$550$150 Delivery Allow 2 3 weeks MENISA ORDERS CALL TOLL FREE 47-1726 Ext 6 Inside TX Oustomer OslI 9151 695-OgiB Ext 2 Texas customers add 6/a% tax No OODa send order check including shipping charges PACIFIC COAST OF TEXAS 2917 Robertson Dr Dept 16Abilene TX 79606 June198751 $425 AVAILABLE AT AMERICAS DISTRIBUTED BYFINEST HOBBY SHOPS SOS SMlflflHI ZND WE 13558550 Sa Gab e R ad oadero CA 93422 1 4651717 ~ CATALOG $750 1000s choose Solar rubber powered gliders copters scale tasercut diecut youcut rockets origami some wing span 6 feet ALL MADE OUT OF PAPER Limited number printed 18188423455PAPER AIRPLANES INTERNATIONAL1213822-9185 1521 Morningslde Drive Burbank California91506USA MAGNIFICENT HIGH TECHNOLOGY AVIATION ART INTRODUCING LESS THE NEW WDRIVER MANUFACTURED BY AEG POWER TOOL CORP IDEAL TOOL FOR BUILDING MODELS Automatic Torque Release 6 Torque Positions Torque Setting 5-16 inch/lb NI-CAD Battery Charger 2 Bits Included Instruction Book Warranty Included Send Money Order J C DEVELOPMENT CO ox 2406 Fullerton CA 92633 MODEL EZ-501 Dealer Price $3000 Minimum 6 Sets Calif Residents Add Sales Tax Plus $400 Shipping & Handling size order 714 879-3266 cho Morris 2715 Eastbrook Dr Mesquite TX 75150 idea regional Soaring associations excellent great method getting bigger groups Sailplaners together Probably oldest association Eastern Soaring Leaguewhich gave rise NSS National Soaring Society LA area has Southern California Soar ing Clubsalso called SC2—which consists Pasadena Soaring Society PSS Pacific RC Soar ing Association PSA North Country Clouds NCC Harbor Soaring Society HSS Soaring Union LA SULA Inland Soaring Society ISS great Northwestern US represented Northwest Soaring Society has about 140 members mainly Washington Oregon Idaho Western Canada other regional associations Im aware please write can spread gospel Colorado have two Soaring clubs located Denver-Boulder area Co lorado Springs So nature activities closely combined 1985 Pikes Peak Club president Randy Reynolds decided two clubs should have western-style shoot-out states bragging rights So Colorado Challenge Cup insti tuted has become regular fixture contest calendar no limit number fliers club winning side deter mined top five scorers club Challenge neighbor clubyoull enjoy Club newsletter exchange Editors en couraged send name address well see other editors would like begin exchange month have Randy Reynolds Pikes Peak Soaring Society Colorado Springs Vaughn Entwistle Greater De troit Soaring Hiking Society Randys address 122 East Unitab Colorado Springs CO 80903 Vaughns 36098 Jeffrey Drive Sterling Heights MI 48310 Byron Blokeslee 3134 Winnebago Dr Se dalia CO 80135 RC Electrics/Kopski Continued page 51 think thing wouldnt burned crisp would motor Twins subject question posed readers long time ago February 1985 matter fact time enquired anyone knew . better spend same total electrical power twin-motor installation versus single motor effect wondered two props better assuming same power expenditure Several readers kind enough respond hut opinions varied However Yesses outnumbered Nays I-dont-knows Well still am sure what answer However whatever reason can say twins showing up more Electric flying field often natural part Scale project theyre fun theyre easy implement readers have enquired about installation details thought Id share some answers everyone general best way wire twins series means positive terminal motor connected negative terminal second motor positive terminal second motor negative terminal first motor new combined motor leads two wires connected remainder system installationbattery fuse switch etc Just motors connected series also individual battery packs Thus motor normally runs example 12 cells two series-connected motors will run total battery 24 cells two twelve-packs wired series Hmmthats full case two distinct advantages series-twin installation total current drain battery same single motor very efficient motors batteries connected parallel other reasonable way configure twin total current drain would double bad news exception thiswhich Ill cover next month Wiring losses increase square current such losses would increase factor offour parallel-wired system Fuse rating would have doubleand dont know get suitable small fuses rated 40 amps addition switches speed controllers would gasp help under such tremendous currents recommended wiring diagram twins shown includes speed controller sake completeness want On/Off switch simply omit controller wiring Whatever custom particulars instal lation some provision must made charging battery very best way charge cells series once general requires charger capable high voltage-outputs Exam ples such chargers Robbe Automax Astro DC/DC Super Charger system described column May/June 1985 issues such charging capability available some provision must made section battery smaller packs disconnect individual packs charge individually popular lower-cost six- seven-cell charg ers reconnect subpacks form larger total battery Astro twin-motor sys tems provided wiring harnesses allow approach conjunction Model 4005D twin charger Finally response question regarding making twin simply installing two indepen dent systems two motors batteries switches etcdont true beauty Electric twin battery two motors neither ofthe latter can stop prematorely unlike liquid-fueled motivation single series-connected Electric circuit assures same nominal performance both motors throughout entire flight motor running otherand same nominal speed Continued page 170 THE DIFFERENT FOAM MODEL Leweat Cast MedeUng Send $100 latest fine-grain sheet foam 3 developments foam samples FREE foam sources Hard Shell finishes now lable Dozens easy build foam air plane plans Peanuts RIC FOAM SCALE MODELS 1 gD/iI RT Magazinea Box 1706 Huntsville AL 358071 INcr Different 5900/5t650 12/24 istues 5100 sample copy/USA oniy Published primarily forI Ithe RC Sport Flyer no curs boors Specializing lots HONEST tests aod comparisoos kits enginesI radios tools issue compared rwenrs-seoen 40 engines Free classifieds letters ness products crashes humor prizes sos tall tales begsnners column much keep fun Already 10000 monthly copies SUBSCRIBE TODA 1 II June1987 163 IMPORTED DIESELS A-MAereraD-CEDMYVSMUleEnVa PAW1aplln Standard N/C 01646 Aere A Marine VlntageSpert Centeat Send 6100 latermatle CARLSON ENGINE IMPORTS 814 East MarconI Phoehlx AZ 35022 1I ~aioatI CENDEAPOR Collectors Notice Just released AMA Museum BACK ISSUES Model Aviation magazinesNEW original car tons sale YEAR SETS ONLY Check selections below send SEPARATE $2200 CHECK individual set Orders will filled first-come basis set request sold out check will returned being cashed Limited Quantities Sets Are Complete I I I I Enclose separate $2200 check set ordered NO CASH NO CHARGES o 1975 July first issue o 1976 0197701982 0197801983 0197901984 0198001985 0198101986 Print carefully shipping label I I I I I U I I Name Street Address I CityStateZIP Make checks payable AMA Send orders Academy Model Aeronautics 1810 Samuel Morse Dr Reston VA 22090 rnrnrn ..I HOBBYPOXY TRUE TWO-PART EPOXY PAINTS 16 COLOR5 R ER EPOXY GLUES FOUR FORMULAS 5-MIN 10 45-MIN FAST FILL GRAIN FILLER OUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE RC Electrics/KopSki Continued page 163 Electric competition rules YOU follow column regular basis know past Ive argued heavily favor simple low-cost first-time AMA Electric competition rules other points view such EAA wherein complex demanding financially otherwise rules proposals favored final version rules proposal sub mitted EAA cycle rules changes published February Competition Newsletter beginning page 123 section Model Aviation proposal compro mise allowed local Contest Directors some options run events March Competition Newsletter reported Electric Contest Board cast its Initial Vote favor acceptance rule 10 Yes zero No margin As see very best can hope circumstances wherein different strong points view no matter what issue compromise new Electric rules-proposal represents compromise workable opinionprovided Electric CDs advertise options have selected meet very important CD elects go three-flights per-charge approach have publihed favored modelers planes can reasonably participate other hand CD elects use EAA-proposed option limited motor runs modelers costly systems can reasonably compete Thus contestants traveling considerable distance contest very important rulesoptions selected made known advance CDs take note situation lest invite violent reaction majority Electric modelersthose simply cant afford dont want very best Now Electric rules matter pretty much put bed 10 0 victory Initial Vote think its sure bet proposed rule will pass Final Vote too Id like add personal Thank right Woody Blanchard Hampton VA serving Electric Contest Board chairman cant help feel must have frust ratingeven brutalizingand mostly unappre ciated job times Finally Id like close months column passing along two recent observations Ijust opportunity look car motor Mabuchi RX-540SD dont know much about cars thing about motor impressed motors label contained following words Max Input Voltage DC 12VMax Input Power 80 W Also just recently noticed Hobby Lobby ad RCM Super Olympus belt-drive electric power unita product Ive yet seen Part description reads 110-watt Mabuchi motor ll folks very sort thing advocated April column neither label complete illus trated thenits start can hardly wait day can report whos first full-up job motor labels dustry take note Please send comment question SASE please Bob Kopski 25 West End Dr Lansdale PA 19446 Since some readers ask writing column part total hobby enjoyment derive lots personal enjoyment building flying Electricand writing column hope others enjoy Electric Electric Elationfirst-time continuing Electric suc cess Fun what hobby make living either hobby writing profession Im electronics engineer Hap py quiet landings everyone RC Giant Scale/de Vries Continued page 53 order things documentation booklet will ease judges job set up properly cover book should identify model note name can attractive introduction model logotype trademark prototypes manufacturer appropriate doll up cover first page book can essentially write-up history models prototype giving such data dimensions performance choose use plastic model document Giant first page booklet good place identify manufac turer plastic kit scale plastic model second page should contain threeview have following pages should contain selection photos airplane modeled Since color markings may handled photos descriptive page noting may may required Finally though isnt strictly documen tation should page noting com mercial parts used constructing model Its 170 Model Aviation P * ****** ***** * ** * **** ****** BALSA WOOD W PIeteset DER PLANS 0 INEXPENSIVE 0 EASY TO BUILD 0-FLYING MODELS 0FAMOUS AIRCRAFT REPLICAS 0-RUBBER BAND HAND LAUNCH 11 EACH 551555 FlYING TO ORDER COMPLETE STAR KRAFT MODEl EROS I/IASHEETSET 057 PLANSso sex 321 BALSA & 3/16 STICK sALSA SEND $7SH PL5S NOUNTIPUL 5T 540tH 1155 LISS THAN ODE SHEET $1 55 POSTAGE TO AND ONE STICK PER MODEl. 17 DIFFERENT PLANS INCLUDtNG F-laF-16 F-lBF-4 U-2A-S SPACE SHUTTLE tO OTHERS U I HOOBYPOXY DIVISION Pettil Paint Company IDE 36 Pine Street Rockaway NJ 07866
Edition: Model Aviation - 1987/06
Page Numbers: 50, 51, 163, 170
Radio Control E lectrics Bob Kopski EARLY reader reaction April column has swift sure voluminous months column being written just few days after April 1987 issue MA has begun appear across country everyone has received subscription copy yet reader response coming record levels Never before has columns brought such strong initial reaction Electric suppliers take note Whats fuss about Well April column offered thoughts establishing meaningful Electric model motor specification standards evidently offering hit home lots readers Large numbers have made very clear too want meaningful motor descriptions/specifications standards absolutely no has written contrary response impressed very much came major mail-order hobby provider told difficulties has What motor goes what plane customer inquiries Another person called states distant hearty Congratulations re sponded Thank youbut what responded April column Well folks since positively reactive model-motor matter let suggest simple thing Write starters write Electric Aeromodel ing Association EAA official AMA-recognized Special Interest Group Electric folks best posi tioned guide Electric matters us hoped represent desires address EAA PO Box 9 Midway City CA 92655 you might consider joining forces Annual membership EAA $10 gets regular newsletters dedicated Electric Another obvious place make feelings known model industry itself Write good folks make Electric stuff tell feel Refer column April issue dont let anybody make feel like dont know what youre talking about Remember Electric hold Other likely places write two people associated other model maga zines other Electric columnists editors columnists know welcome readers letters enough press subject responsible writer will surely react through column As editors think can taken granted very seriously interested hobby whole After its livelihood adherents major aspect hobby Electric destined become have something say editors usually very accommodating via letters editor whatever name call column letter could certainly wind up way may very well become quite influential getting what seem want meaning ful simple Electric model-motor-specification standards Thank making feel very good too An Electric meet scheduled May 9 1987 Union Lake Flying Organization Union Lake MI Third Annual Electric Fly scheduled activities include Best Acro batic Best Scale Most Unique Best Finish Triple Duration Plaques will awarded categories make things nicer free breakfast will given enter very best things about meet its close home Keith ShawGrand Electronaire Su premeand participates youll get show life can get information meet Ken Myers 9043 Satellite Dr Union Lake MI 48085 phone number 313 698-4668 Next SAM 76 announces Old-Timer meet scheduled Sunday May 17 1987 Pennfield Middle School grounds Hatfield PA Among several Gas O-T events Electric event simplicity itself Open Electric O-Ts planes must conform SAM model requirements power system will three-flights-on-one-charge format seven-minute maxes CD Ralph Biddle 2156 Street Road Warrington PA 18976 Next Eastern Free Flight Conference has announced 1987 East Coast Free Flight Championships held Armys Gale ville NY Training Facility June 27-28 1987 meet offers events including Electric ones can obtain information CD Don Ross 38 Churchill Rd Cresskill NJ 07626 phone number 201 568-5272 Finally Keystone RC Club Hatfield PA near Philadelphia has scheduled Eighth Annual Electric Fly weekend Sep tember 19-20 1987 Over years meet has grown size fame extent must now moved larger field plans 50 Model Aviation Author Kopekl explains twin-motor Electrics wiring shouldnt just two singlemotor installations plane Speed controller could replaced switch Recognize its Midwest Esquire Jack Gollahers Santa Maria CA scratch-right outof lateFifties Ken MyersUnion built ship spans big 6 ft uses old-styleLake WI powered ltwlthanAstroloferrite/ Astro 10 dozen 550 mAh cells Jackgear drive dozen 1 200mAh cells add some lightness craftsTop Flit 11 xepuiisthee8-ozcraftrightup original 4-lb weight after flightoff snow Plans recent issue characteristics improved lotModel Builder Dr John Mountloy Winston-Salem NC built 54-in-span Taibi Powerhouse Power Robbe SOOSE 251 gear reduction driving Robbe 3-biaded folding prop Power pack eighteen 900 mAh Sanyo red-case cells weight 6 lb 2 oz craft needs 1100 sq wing area Covering silk dope Whats now place field nearby Quakertownonly 20-minute drive KRC club field location site previous KRC Electric Fly gatherings detailed informa don can obtained sending SASE CD Bruce Fenstermacher 636 Schoolhouse Rd Telford PA 18969 As interesting sidelight Bruce has flown several Electrics over years also enjoys flying Gas Helicoptersboth model full-scale Finally thats planned comes pass Grand Electronaire Supreme Keith Shaw will again attend years meetand just happen know what new goody has boards year aint tellin what can assure you wont want miss biggest best Electric Fly country Am biased what motor power supply bench item growing interest more readers seems folks want some way benchcheck motors props having charge up flight battery Thats very understand ableI myself readers have enquired about power supply personally usethe pictured part three About Electrics series ran MA few years ago particular installment appeared November 1983 issue Im amazed readers retain refer 10-part mini-course Anyway often inquiry requests information build like similar supply can obtained Well Im very sorry say power supply one-of-a-kind its constructed junk-box parts major component failed Id personally hard-pressed replace very much dislikeand feel uncomfortable withthe situation its best could myself reason Im predicament buy such power supplyor build its equivalent new partswould cost small fortune Some readers have found out firsthand Realizing interested such power supply may someday have need replacement Ive conscientiously looking way provide capacity needed reasonable cost effort So farno luck Such supply should have smoothly-variable output up about 30 volts 30 amps adequately cover needs almost kilowatt total capability though readers using flight systems having anywhere near total power individual capabilities voltage current needed seems some readers may want run 40s so-called equivalent 18 cells about 28 volts Other readers just want run cobalt 05s six- seven-cell motors 12-volt supply would suit needs have 20-amp current handing capability Thus suitable bench supply should have combined capabilities describedjust things make item very costly quite bulky heavy besides Nevertheless should lucky find suitable approach share assured youll find future issue MA Before leave topic completely Id like respond right Ive done individuals several occasions No cannot take household auto battery charger Astro 4005 B AC/DC charger connect its output now discontinued Astro Voltage Booster Radio Shack Voltage Inverter attempt get higher voltages necessary bench-run cobalt 15/25/40 doing Continued page 163 Detailed screen printed designs brilliant colors FRONT BACK ot BLACK premium weight USA made tshirts Sizes 5 M L XLCatalog 8100 Dynamic cap designs clearly Leading Edge Technology' Cap size adjustable sizt fits Available Shins two-sided $1295 A/F-4 F-lBB-iSR-71 c-s F-i4 Nightmare F-i4 A-7B-52Flil 0-130 F-ill Terrorize F-is A-bT-3eKO-135 C-141 F-lB Shijie F-16 AH-1M-i6-52 Arms Deal Available flIfls one-sided $1095 F-i Ii Libyian SunriseF-i Ii Warsaw Pact 6-52 Reach Out6-52 Send Beat Minimum 24 Shirt Order $250 ott shirt Available Caps $795 F-iSSR-il6-25P-47Space Shuttle F-16B-i B6-29ZeroTop Gun Minimum 24 Cap Order $150 oft cap ShippingFirstEa Addl Shirt/CapShirt/Cap USA$200$ 50 Canada$350$100 Other$550$150 Delivery Allow 2 3 weeks MENISA ORDERS CALL TOLL FREE 47-1726 Ext 6 Inside TX Oustomer OslI 9151 695-OgiB Ext 2 Texas customers add 6/a% tax No OODa send order check including shipping charges PACIFIC COAST OF TEXAS 2917 Robertson Dr Dept 16Abilene TX 79606 June198751 $425 AVAILABLE AT AMERICAS DISTRIBUTED BYFINEST HOBBY SHOPS SOS SMlflflHI ZND WE 13558550 Sa Gab e R ad oadero CA 93422 1 4651717 ~ CATALOG $750 1000s choose Solar rubber powered gliders copters scale tasercut diecut youcut rockets origami some wing span 6 feet ALL MADE OUT OF PAPER Limited number printed 18188423455PAPER AIRPLANES INTERNATIONAL1213822-9185 1521 Morningslde Drive Burbank California91506USA MAGNIFICENT HIGH TECHNOLOGY AVIATION ART INTRODUCING LESS THE NEW WDRIVER MANUFACTURED BY AEG POWER TOOL CORP IDEAL TOOL FOR BUILDING MODELS Automatic Torque Release 6 Torque Positions Torque Setting 5-16 inch/lb NI-CAD Battery Charger 2 Bits Included Instruction Book Warranty Included Send Money Order J C DEVELOPMENT CO ox 2406 Fullerton CA 92633 MODEL EZ-501 Dealer Price $3000 Minimum 6 Sets Calif Residents Add Sales Tax Plus $400 Shipping & Handling size order 714 879-3266 cho Morris 2715 Eastbrook Dr Mesquite TX 75150 idea regional Soaring associations excellent great method getting bigger groups Sailplaners together Probably oldest association Eastern Soaring Leaguewhich gave rise NSS National Soaring Society LA area has Southern California Soar ing Clubsalso called SC2—which consists Pasadena Soaring Society PSS Pacific RC Soar ing Association PSA North Country Clouds NCC Harbor Soaring Society HSS Soaring Union LA SULA Inland Soaring Society ISS great Northwestern US represented Northwest Soaring Society has about 140 members mainly Washington Oregon Idaho Western Canada other regional associations Im aware please write can spread gospel Colorado have two Soaring clubs located Denver-Boulder area Co lorado Springs So nature activities closely combined 1985 Pikes Peak Club president Randy Reynolds decided two clubs should have western-style shoot-out states bragging rights So Colorado Challenge Cup insti tuted has become regular fixture contest calendar no limit number fliers club winning side deter mined top five scorers club Challenge neighbor clubyoull enjoy Club newsletter exchange Editors en couraged send name address well see other editors would like begin exchange month have Randy Reynolds Pikes Peak Soaring Society Colorado Springs Vaughn Entwistle Greater De troit Soaring Hiking Society Randys address 122 East Unitab Colorado Springs CO 80903 Vaughns 36098 Jeffrey Drive Sterling Heights MI 48310 Byron Blokeslee 3134 Winnebago Dr Se dalia CO 80135 RC Electrics/Kopski Continued page 51 think thing wouldnt burned crisp would motor Twins subject question posed readers long time ago February 1985 matter fact time enquired anyone knew . better spend same total electrical power twin-motor installation versus single motor effect wondered two props better assuming same power expenditure Several readers kind enough respond hut opinions varied However Yesses outnumbered Nays I-dont-knows Well still am sure what answer However whatever reason can say twins showing up more Electric flying field often natural part Scale project theyre fun theyre easy implement readers have enquired about installation details thought Id share some answers everyone general best way wire twins series means positive terminal motor connected negative terminal second motor positive terminal second motor negative terminal first motor new combined motor leads two wires connected remainder system installationbattery fuse switch etc Just motors connected series also individual battery packs Thus motor normally runs example 12 cells two series-connected motors will run total battery 24 cells two twelve-packs wired series Hmmthats full case two distinct advantages series-twin installation total current drain battery same single motor very efficient motors batteries connected parallel other reasonable way configure twin total current drain would double bad news exception thiswhich Ill cover next month Wiring losses increase square current such losses would increase factor offour parallel-wired system Fuse rating would have doubleand dont know get suitable small fuses rated 40 amps addition switches speed controllers would gasp help under such tremendous currents recommended wiring diagram twins shown includes speed controller sake completeness want On/Off switch simply omit controller wiring Whatever custom particulars instal lation some provision must made charging battery very best way charge cells series once general requires charger capable high voltage-outputs Exam ples such chargers Robbe Automax Astro DC/DC Super Charger system described column May/June 1985 issues such charging capability available some provision must made section battery smaller packs disconnect individual packs charge individually popular lower-cost six- seven-cell charg ers reconnect subpacks form larger total battery Astro twin-motor sys tems provided wiring harnesses allow approach conjunction Model 4005D twin charger Finally response question regarding making twin simply installing two indepen dent systems two motors batteries switches etcdont true beauty Electric twin battery two motors neither ofthe latter can stop prematorely unlike liquid-fueled motivation single series-connected Electric circuit assures same nominal performance both motors throughout entire flight motor running otherand same nominal speed Continued page 170 THE DIFFERENT FOAM MODEL Leweat Cast MedeUng Send $100 latest fine-grain sheet foam 3 developments foam samples FREE foam sources Hard Shell finishes now lable Dozens easy build foam air plane plans Peanuts RIC FOAM SCALE MODELS 1 gD/iI RT Magazinea Box 1706 Huntsville AL 358071 INcr Different 5900/5t650 12/24 istues 5100 sample copy/USA oniy Published primarily forI Ithe RC Sport Flyer no curs boors Specializing lots HONEST tests aod comparisoos kits enginesI radios tools issue compared rwenrs-seoen 40 engines Free classifieds letters ness products crashes humor prizes sos tall tales begsnners column much keep fun Already 10000 monthly copies SUBSCRIBE TODA 1 II June1987 163 IMPORTED DIESELS A-MAereraD-CEDMYVSMUleEnVa PAW1aplln Standard N/C 01646 Aere A Marine VlntageSpert Centeat Send 6100 latermatle CARLSON ENGINE IMPORTS 814 East MarconI Phoehlx AZ 35022 1I ~aioatI CENDEAPOR Collectors Notice Just released AMA Museum BACK ISSUES Model Aviation magazinesNEW original car tons sale YEAR SETS ONLY Check selections below send SEPARATE $2200 CHECK individual set Orders will filled first-come basis set request sold out check will returned being cashed Limited Quantities Sets Are Complete I I I I Enclose separate $2200 check set ordered NO CASH NO CHARGES o 1975 July first issue o 1976 0197701982 0197801983 0197901984 0198001985 0198101986 Print carefully shipping label I I I I I U I I Name Street Address I CityStateZIP Make checks payable AMA Send orders Academy Model Aeronautics 1810 Samuel Morse Dr Reston VA 22090 rnrnrn ..I HOBBYPOXY TRUE TWO-PART EPOXY PAINTS 16 COLOR5 R ER EPOXY GLUES FOUR FORMULAS 5-MIN 10 45-MIN FAST FILL GRAIN FILLER OUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE RC Electrics/KopSki Continued page 163 Electric competition rules YOU follow column regular basis know past Ive argued heavily favor simple low-cost first-time AMA Electric competition rules other points view such EAA wherein complex demanding financially otherwise rules proposals favored final version rules proposal sub mitted EAA cycle rules changes published February Competition Newsletter beginning page 123 section Model Aviation proposal compro mise allowed local Contest Directors some options run events March Competition Newsletter reported Electric Contest Board cast its Initial Vote favor acceptance rule 10 Yes zero No margin As see very best can hope circumstances wherein different strong points view no matter what issue compromise new Electric rules-proposal represents compromise workable opinionprovided Electric CDs advertise options have selected meet very important CD elects go three-flights per-charge approach have publihed favored modelers planes can reasonably participate other hand CD elects use EAA-proposed option limited motor runs modelers costly systems can reasonably compete Thus contestants traveling considerable distance contest very important rulesoptions selected made known advance CDs take note situation lest invite violent reaction majority Electric modelersthose simply cant afford dont want very best Now Electric rules matter pretty much put bed 10 0 victory Initial Vote think its sure bet proposed rule will pass Final Vote too Id like add personal Thank right Woody Blanchard Hampton VA serving Electric Contest Board chairman cant help feel must have frust ratingeven brutalizingand mostly unappre ciated job times Finally Id like close months column passing along two recent observations Ijust opportunity look car motor Mabuchi RX-540SD dont know much about cars thing about motor impressed motors label contained following words Max Input Voltage DC 12VMax Input Power 80 W Also just recently noticed Hobby Lobby ad RCM Super Olympus belt-drive electric power unita product Ive yet seen Part description reads 110-watt Mabuchi motor ll folks very sort thing advocated April column neither label complete illus trated thenits start can hardly wait day can report whos first full-up job motor labels dustry take note Please send comment question SASE please Bob Kopski 25 West End Dr Lansdale PA 19446 Since some readers ask writing column part total hobby enjoyment derive lots personal enjoyment building flying Electricand writing column hope others enjoy Electric Electric Elationfirst-time continuing Electric suc cess Fun what hobby make living either hobby writing profession Im electronics engineer Hap py quiet landings everyone RC Giant Scale/de Vries Continued page 53 order things documentation booklet will ease judges job set up properly cover book should identify model note name can attractive introduction model logotype trademark prototypes manufacturer appropriate doll up cover first page book can essentially write-up history models prototype giving such data dimensions performance choose use plastic model document Giant first page booklet good place identify manufac turer plastic kit scale plastic model second page should contain threeview have following pages should contain selection photos airplane modeled Since color markings may handled photos descriptive page noting may may required Finally though isnt strictly documen tation should page noting com mercial parts used constructing model Its 170 Model Aviation P * ****** ***** * ** * **** ****** BALSA WOOD W PIeteset DER PLANS 0 INEXPENSIVE 0 EASY TO BUILD 0-FLYING MODELS 0FAMOUS AIRCRAFT REPLICAS 0-RUBBER BAND HAND LAUNCH 11 EACH 551555 FlYING TO ORDER COMPLETE STAR KRAFT MODEl EROS I/IASHEETSET 057 PLANSso sex 321 BALSA & 3/16 STICK sALSA SEND $7SH PL5S NOUNTIPUL 5T 540tH 1155 LISS THAN ODE SHEET $1 55 POSTAGE TO AND ONE STICK PER MODEl. 17 DIFFERENT PLANS INCLUDtNG F-laF-16 F-lBF-4 U-2A-S SPACE SHUTTLE tO OTHERS U I HOOBYPOXY DIVISION Pettil Paint Company IDE 36 Pine Street Rockaway NJ 07866
Edition: Model Aviation - 1987/06
Page Numbers: 50, 51, 163, 170
Radio Control E lectrics Bob Kopski EARLY reader reaction April column has swift sure voluminous months column being written just few days after April 1987 issue MA has begun appear across country everyone has received subscription copy yet reader response coming record levels Never before has columns brought such strong initial reaction Electric suppliers take note Whats fuss about Well April column offered thoughts establishing meaningful Electric model motor specification standards evidently offering hit home lots readers Large numbers have made very clear too want meaningful motor descriptions/specifications standards absolutely no has written contrary response impressed very much came major mail-order hobby provider told difficulties has What motor goes what plane customer inquiries Another person called states distant hearty Congratulations re sponded Thank youbut what responded April column Well folks since positively reactive model-motor matter let suggest simple thing Write starters write Electric Aeromodel ing Association EAA official AMA-recognized Special Interest Group Electric folks best posi tioned guide Electric matters us hoped represent desires address EAA PO Box 9 Midway City CA 92655 you might consider joining forces Annual membership EAA $10 gets regular newsletters dedicated Electric Another obvious place make feelings known model industry itself Write good folks make Electric stuff tell feel Refer column April issue dont let anybody make feel like dont know what youre talking about Remember Electric hold Other likely places write two people associated other model maga zines other Electric columnists editors columnists know welcome readers letters enough press subject responsible writer will surely react through column As editors think can taken granted very seriously interested hobby whole After its livelihood adherents major aspect hobby Electric destined become have something say editors usually very accommodating via letters editor whatever name call column letter could certainly wind up way may very well become quite influential getting what seem want meaning ful simple Electric model-motor-specification standards Thank making feel very good too An Electric meet scheduled May 9 1987 Union Lake Flying Organization Union Lake MI Third Annual Electric Fly scheduled activities include Best Acro batic Best Scale Most Unique Best Finish Triple Duration Plaques will awarded categories make things nicer free breakfast will given enter very best things about meet its close home Keith ShawGrand Electronaire Su premeand participates youll get show life can get information meet Ken Myers 9043 Satellite Dr Union Lake MI 48085 phone number 313 698-4668 Next SAM 76 announces Old-Timer meet scheduled Sunday May 17 1987 Pennfield Middle School grounds Hatfield PA Among several Gas O-T events Electric event simplicity itself Open Electric O-Ts planes must conform SAM model requirements power system will three-flights-on-one-charge format seven-minute maxes CD Ralph Biddle 2156 Street Road Warrington PA 18976 Next Eastern Free Flight Conference has announced 1987 East Coast Free Flight Championships held Armys Gale ville NY Training Facility June 27-28 1987 meet offers events including Electric ones can obtain information CD Don Ross 38 Churchill Rd Cresskill NJ 07626 phone number 201 568-5272 Finally Keystone RC Club Hatfield PA near Philadelphia has scheduled Eighth Annual Electric Fly weekend Sep tember 19-20 1987 Over years meet has grown size fame extent must now moved larger field plans 50 Model Aviation Author Kopekl explains twin-motor Electrics wiring shouldnt just two singlemotor installations plane Speed controller could replaced switch Recognize its Midwest Esquire Jack Gollahers Santa Maria CA scratch-right outof lateFifties Ken MyersUnion built ship spans big 6 ft uses old-styleLake WI powered ltwlthanAstroloferrite/ Astro 10 dozen 550 mAh cells Jackgear drive dozen 1 200mAh cells add some lightness craftsTop Flit 11 xepuiisthee8-ozcraftrightup original 4-lb weight after flightoff snow Plans recent issue characteristics improved lotModel Builder Dr John Mountloy Winston-Salem NC built 54-in-span Taibi Powerhouse Power Robbe SOOSE 251 gear reduction driving Robbe 3-biaded folding prop Power pack eighteen 900 mAh Sanyo red-case cells weight 6 lb 2 oz craft needs 1100 sq wing area Covering silk dope Whats now place field nearby Quakertownonly 20-minute drive KRC club field location site previous KRC Electric Fly gatherings detailed informa don can obtained sending SASE CD Bruce Fenstermacher 636 Schoolhouse Rd Telford PA 18969 As interesting sidelight Bruce has flown several Electrics over years also enjoys flying Gas Helicoptersboth model full-scale Finally thats planned comes pass Grand Electronaire Supreme Keith Shaw will again attend years meetand just happen know what new goody has boards year aint tellin what can assure you wont want miss biggest best Electric Fly country Am biased what motor power supply bench item growing interest more readers seems folks want some way benchcheck motors props having charge up flight battery Thats very understand ableI myself readers have enquired about power supply personally usethe pictured part three About Electrics series ran MA few years ago particular installment appeared November 1983 issue Im amazed readers retain refer 10-part mini-course Anyway often inquiry requests information build like similar supply can obtained Well Im very sorry say power supply one-of-a-kind its constructed junk-box parts major component failed Id personally hard-pressed replace very much dislikeand feel uncomfortable withthe situation its best could myself reason Im predicament buy such power supplyor build its equivalent new partswould cost small fortune Some readers have found out firsthand Realizing interested such power supply may someday have need replacement Ive conscientiously looking way provide capacity needed reasonable cost effort So farno luck Such supply should have smoothly-variable output up about 30 volts 30 amps adequately cover needs almost kilowatt total capability though readers using flight systems having anywhere near total power individual capabilities voltage current needed seems some readers may want run 40s so-called equivalent 18 cells about 28 volts Other readers just want run cobalt 05s six- seven-cell motors 12-volt supply would suit needs have 20-amp current handing capability Thus suitable bench supply should have combined capabilities describedjust things make item very costly quite bulky heavy besides Nevertheless should lucky find suitable approach share assured youll find future issue MA Before leave topic completely Id like respond right Ive done individuals several occasions No cannot take household auto battery charger Astro 4005 B AC/DC charger connect its output now discontinued Astro Voltage Booster Radio Shack Voltage Inverter attempt get higher voltages necessary bench-run cobalt 15/25/40 doing Continued page 163 Detailed screen printed designs brilliant colors FRONT BACK ot BLACK premium weight USA made tshirts Sizes 5 M L XLCatalog 8100 Dynamic cap designs clearly Leading Edge Technology' Cap size adjustable sizt fits Available Shins two-sided $1295 A/F-4 F-lBB-iSR-71 c-s F-i4 Nightmare F-i4 A-7B-52Flil 0-130 F-ill Terrorize F-is A-bT-3eKO-135 C-141 F-lB Shijie F-16 AH-1M-i6-52 Arms Deal Available flIfls one-sided $1095 F-i Ii Libyian SunriseF-i Ii Warsaw Pact 6-52 Reach Out6-52 Send Beat Minimum 24 Shirt Order $250 ott shirt Available Caps $795 F-iSSR-il6-25P-47Space Shuttle F-16B-i B6-29ZeroTop Gun Minimum 24 Cap Order $150 oft cap ShippingFirstEa Addl Shirt/CapShirt/Cap USA$200$ 50 Canada$350$100 Other$550$150 Delivery Allow 2 3 weeks MENISA ORDERS CALL TOLL FREE 47-1726 Ext 6 Inside TX Oustomer OslI 9151 695-OgiB Ext 2 Texas customers add 6/a% tax No OODa send order check including shipping charges PACIFIC COAST OF TEXAS 2917 Robertson Dr Dept 16Abilene TX 79606 June198751 $425 AVAILABLE AT AMERICAS DISTRIBUTED BYFINEST HOBBY SHOPS SOS SMlflflHI ZND WE 13558550 Sa Gab e R ad oadero CA 93422 1 4651717 ~ CATALOG $750 1000s choose Solar rubber powered gliders copters scale tasercut diecut youcut rockets origami some wing span 6 feet ALL MADE OUT OF PAPER Limited number printed 18188423455PAPER AIRPLANES INTERNATIONAL1213822-9185 1521 Morningslde Drive Burbank California91506USA MAGNIFICENT HIGH TECHNOLOGY AVIATION ART INTRODUCING LESS THE NEW WDRIVER MANUFACTURED BY AEG POWER TOOL CORP IDEAL TOOL FOR BUILDING MODELS Automatic Torque Release 6 Torque Positions Torque Setting 5-16 inch/lb NI-CAD Battery Charger 2 Bits Included Instruction Book Warranty Included Send Money Order J C DEVELOPMENT CO ox 2406 Fullerton CA 92633 MODEL EZ-501 Dealer Price $3000 Minimum 6 Sets Calif Residents Add Sales Tax Plus $400 Shipping & Handling size order 714 879-3266 cho Morris 2715 Eastbrook Dr Mesquite TX 75150 idea regional Soaring associations excellent great method getting bigger groups Sailplaners together Probably oldest association Eastern Soaring Leaguewhich gave rise NSS National Soaring Society LA area has Southern California Soar ing Clubsalso called SC2—which consists Pasadena Soaring Society PSS Pacific RC Soar ing Association PSA North Country Clouds NCC Harbor Soaring Society HSS Soaring Union LA SULA Inland Soaring Society ISS great Northwestern US represented Northwest Soaring Society has about 140 members mainly Washington Oregon Idaho Western Canada other regional associations Im aware please write can spread gospel Colorado have two Soaring clubs located Denver-Boulder area Co lorado Springs So nature activities closely combined 1985 Pikes Peak Club president Randy Reynolds decided two clubs should have western-style shoot-out states bragging rights So Colorado Challenge Cup insti tuted has become regular fixture contest calendar no limit number fliers club winning side deter mined top five scorers club Challenge neighbor clubyoull enjoy Club newsletter exchange Editors en couraged send name address well see other editors would like begin exchange month have Randy Reynolds Pikes Peak Soaring Society Colorado Springs Vaughn Entwistle Greater De troit Soaring Hiking Society Randys address 122 East Unitab Colorado Springs CO 80903 Vaughns 36098 Jeffrey Drive Sterling Heights MI 48310 Byron Blokeslee 3134 Winnebago Dr Se dalia CO 80135 RC Electrics/Kopski Continued page 51 think thing wouldnt burned crisp would motor Twins subject question posed readers long time ago February 1985 matter fact time enquired anyone knew . better spend same total electrical power twin-motor installation versus single motor effect wondered two props better assuming same power expenditure Several readers kind enough respond hut opinions varied However Yesses outnumbered Nays I-dont-knows Well still am sure what answer However whatever reason can say twins showing up more Electric flying field often natural part Scale project theyre fun theyre easy implement readers have enquired about installation details thought Id share some answers everyone general best way wire twins series means positive terminal motor connected negative terminal second motor positive terminal second motor negative terminal first motor new combined motor leads two wires connected remainder system installationbattery fuse switch etc Just motors connected series also individual battery packs Thus motor normally runs example 12 cells two series-connected motors will run total battery 24 cells two twelve-packs wired series Hmmthats full case two distinct advantages series-twin installation total current drain battery same single motor very efficient motors batteries connected parallel other reasonable way configure twin total current drain would double bad news exception thiswhich Ill cover next month Wiring losses increase square current such losses would increase factor offour parallel-wired system Fuse rating would have doubleand dont know get suitable small fuses rated 40 amps addition switches speed controllers would gasp help under such tremendous currents recommended wiring diagram twins shown includes speed controller sake completeness want On/Off switch simply omit controller wiring Whatever custom particulars instal lation some provision must made charging battery very best way charge cells series once general requires charger capable high voltage-outputs Exam ples such chargers Robbe Automax Astro DC/DC Super Charger system described column May/June 1985 issues such charging capability available some provision must made section battery smaller packs disconnect individual packs charge individually popular lower-cost six- seven-cell charg ers reconnect subpacks form larger total battery Astro twin-motor sys tems provided wiring harnesses allow approach conjunction Model 4005D twin charger Finally response question regarding making twin simply installing two indepen dent systems two motors batteries switches etcdont true beauty Electric twin battery two motors neither ofthe latter can stop prematorely unlike liquid-fueled motivation single series-connected Electric circuit assures same nominal performance both motors throughout entire flight motor running otherand same nominal speed Continued page 170 THE DIFFERENT FOAM MODEL Leweat Cast MedeUng Send $100 latest fine-grain sheet foam 3 developments foam samples FREE foam sources Hard Shell finishes now lable Dozens easy build foam air plane plans Peanuts RIC FOAM SCALE MODELS 1 gD/iI RT Magazinea Box 1706 Huntsville AL 358071 INcr Different 5900/5t650 12/24 istues 5100 sample copy/USA oniy Published primarily forI Ithe RC Sport Flyer no curs boors Specializing lots HONEST tests aod comparisoos kits enginesI radios tools issue compared rwenrs-seoen 40 engines Free classifieds letters ness products crashes humor prizes sos tall tales begsnners column much keep fun Already 10000 monthly copies SUBSCRIBE TODA 1 II June1987 163 IMPORTED DIESELS A-MAereraD-CEDMYVSMUleEnVa PAW1aplln Standard N/C 01646 Aere A Marine VlntageSpert Centeat Send 6100 latermatle CARLSON ENGINE IMPORTS 814 East MarconI Phoehlx AZ 35022 1I ~aioatI CENDEAPOR Collectors Notice Just released AMA Museum BACK ISSUES Model Aviation magazinesNEW original car tons sale YEAR SETS ONLY Check selections below send SEPARATE $2200 CHECK individual set Orders will filled first-come basis set request sold out check will returned being cashed Limited Quantities Sets Are Complete I I I I Enclose separate $2200 check set ordered NO CASH NO CHARGES o 1975 July first issue o 1976 0197701982 0197801983 0197901984 0198001985 0198101986 Print carefully shipping label I I I I I U I I Name Street Address I CityStateZIP Make checks payable AMA Send orders Academy Model Aeronautics 1810 Samuel Morse Dr Reston VA 22090 rnrnrn ..I HOBBYPOXY TRUE TWO-PART EPOXY PAINTS 16 COLOR5 R ER EPOXY GLUES FOUR FORMULAS 5-MIN 10 45-MIN FAST FILL GRAIN FILLER OUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE RC Electrics/KopSki Continued page 163 Electric competition rules YOU follow column regular basis know past Ive argued heavily favor simple low-cost first-time AMA Electric competition rules other points view such EAA wherein complex demanding financially otherwise rules proposals favored final version rules proposal sub mitted EAA cycle rules changes published February Competition Newsletter beginning page 123 section Model Aviation proposal compro mise allowed local Contest Directors some options run events March Competition Newsletter reported Electric Contest Board cast its Initial Vote favor acceptance rule 10 Yes zero No margin As see very best can hope circumstances wherein different strong points view no matter what issue compromise new Electric rules-proposal represents compromise workable opinionprovided Electric CDs advertise options have selected meet very important CD elects go three-flights per-charge approach have publihed favored modelers planes can reasonably participate other hand CD elects use EAA-proposed option limited motor runs modelers costly systems can reasonably compete Thus contestants traveling considerable distance contest very important rulesoptions selected made known advance CDs take note situation lest invite violent reaction majority Electric modelersthose simply cant afford dont want very best Now Electric rules matter pretty much put bed 10 0 victory Initial Vote think its sure bet proposed rule will pass Final Vote too Id like add personal Thank right Woody Blanchard Hampton VA serving Electric Contest Board chairman cant help feel must have frust ratingeven brutalizingand mostly unappre ciated job times Finally Id like close months column passing along two recent observations Ijust opportunity look car motor Mabuchi RX-540SD dont know much about cars thing about motor impressed motors label contained following words Max Input Voltage DC 12VMax Input Power 80 W Also just recently noticed Hobby Lobby ad RCM Super Olympus belt-drive electric power unita product Ive yet seen Part description reads 110-watt Mabuchi motor ll folks very sort thing advocated April column neither label complete illus trated thenits start can hardly wait day can report whos first full-up job motor labels dustry take note Please send comment question SASE please Bob Kopski 25 West End Dr Lansdale PA 19446 Since some readers ask writing column part total hobby enjoyment derive lots personal enjoyment building flying Electricand writing column hope others enjoy Electric Electric Elationfirst-time continuing Electric suc cess Fun what hobby make living either hobby writing profession Im electronics engineer Hap py quiet landings everyone RC Giant Scale/de Vries Continued page 53 order things documentation booklet will ease judges job set up properly cover book should identify model note name can attractive introduction model logotype trademark prototypes manufacturer appropriate doll up cover first page book can essentially write-up history models prototype giving such data dimensions performance choose use plastic model document Giant first page booklet good place identify manufac turer plastic kit scale plastic model second page should contain threeview have following pages should contain selection photos airplane modeled Since color markings may handled photos descriptive page noting may may required Finally though isnt strictly documen tation should page noting com mercial parts used constructing model Its 170 Model Aviation P * ****** ***** * ** * **** ****** BALSA WOOD W PIeteset DER PLANS 0 INEXPENSIVE 0 EASY TO BUILD 0-FLYING MODELS 0FAMOUS AIRCRAFT REPLICAS 0-RUBBER BAND HAND LAUNCH 11 EACH 551555 FlYING TO ORDER COMPLETE STAR KRAFT MODEl EROS I/IASHEETSET 057 PLANSso sex 321 BALSA & 3/16 STICK sALSA SEND $7SH PL5S NOUNTIPUL 5T 540tH 1155 LISS THAN ODE SHEET $1 55 POSTAGE TO AND ONE STICK PER MODEl. 17 DIFFERENT PLANS INCLUDtNG F-laF-16 F-lBF-4 U-2A-S SPACE SHUTTLE tO OTHERS U I HOOBYPOXY DIVISION Pettil Paint Company IDE 36 Pine Street Rockaway NJ 07866
Edition: Model Aviation - 1987/06
Page Numbers: 50, 51, 163, 170
Radio Control E lectrics Bob Kopski EARLY reader reaction April column has swift sure voluminous months column being written just few days after April 1987 issue MA has begun appear across country everyone has received subscription copy yet reader response coming record levels Never before has columns brought such strong initial reaction Electric suppliers take note Whats fuss about Well April column offered thoughts establishing meaningful Electric model motor specification standards evidently offering hit home lots readers Large numbers have made very clear too want meaningful motor descriptions/specifications standards absolutely no has written contrary response impressed very much came major mail-order hobby provider told difficulties has What motor goes what plane customer inquiries Another person called states distant hearty Congratulations re sponded Thank youbut what responded April column Well folks since positively reactive model-motor matter let suggest simple thing Write starters write Electric Aeromodel ing Association EAA official AMA-recognized Special Interest Group Electric folks best posi tioned guide Electric matters us hoped represent desires address EAA PO Box 9 Midway City CA 92655 you might consider joining forces Annual membership EAA $10 gets regular newsletters dedicated Electric Another obvious place make feelings known model industry itself Write good folks make Electric stuff tell feel Refer column April issue dont let anybody make feel like dont know what youre talking about Remember Electric hold Other likely places write two people associated other model maga zines other Electric columnists editors columnists know welcome readers letters enough press subject responsible writer will surely react through column As editors think can taken granted very seriously interested hobby whole After its livelihood adherents major aspect hobby Electric destined become have something say editors usually very accommodating via letters editor whatever name call column letter could certainly wind up way may very well become quite influential getting what seem want meaning ful simple Electric model-motor-specification standards Thank making feel very good too An Electric meet scheduled May 9 1987 Union Lake Flying Organization Union Lake MI Third Annual Electric Fly scheduled activities include Best Acro batic Best Scale Most Unique Best Finish Triple Duration Plaques will awarded categories make things nicer free breakfast will given enter very best things about meet its close home Keith ShawGrand Electronaire Su premeand participates youll get show life can get information meet Ken Myers 9043 Satellite Dr Union Lake MI 48085 phone number 313 698-4668 Next SAM 76 announces Old-Timer meet scheduled Sunday May 17 1987 Pennfield Middle School grounds Hatfield PA Among several Gas O-T events Electric event simplicity itself Open Electric O-Ts planes must conform SAM model requirements power system will three-flights-on-one-charge format seven-minute maxes CD Ralph Biddle 2156 Street Road Warrington PA 18976 Next Eastern Free Flight Conference has announced 1987 East Coast Free Flight Championships held Armys Gale ville NY Training Facility June 27-28 1987 meet offers events including Electric ones can obtain information CD Don Ross 38 Churchill Rd Cresskill NJ 07626 phone number 201 568-5272 Finally Keystone RC Club Hatfield PA near Philadelphia has scheduled Eighth Annual Electric Fly weekend Sep tember 19-20 1987 Over years meet has grown size fame extent must now moved larger field plans 50 Model Aviation Author Kopekl explains twin-motor Electrics wiring shouldnt just two singlemotor installations plane Speed controller could replaced switch Recognize its Midwest Esquire Jack Gollahers Santa Maria CA scratch-right outof lateFifties Ken MyersUnion built ship spans big 6 ft uses old-styleLake WI powered ltwlthanAstroloferrite/ Astro 10 dozen 550 mAh cells Jackgear drive dozen 1 200mAh cells add some lightness craftsTop Flit 11 xepuiisthee8-ozcraftrightup original 4-lb weight after flightoff snow Plans recent issue characteristics improved lotModel Builder Dr John Mountloy Winston-Salem NC built 54-in-span Taibi Powerhouse Power Robbe SOOSE 251 gear reduction driving Robbe 3-biaded folding prop Power pack eighteen 900 mAh Sanyo red-case cells weight 6 lb 2 oz craft needs 1100 sq wing area Covering silk dope Whats now place field nearby Quakertownonly 20-minute drive KRC club field location site previous KRC Electric Fly gatherings detailed informa don can obtained sending SASE CD Bruce Fenstermacher 636 Schoolhouse Rd Telford PA 18969 As interesting sidelight Bruce has flown several Electrics over years also enjoys flying Gas Helicoptersboth model full-scale Finally thats planned comes pass Grand Electronaire Supreme Keith Shaw will again attend years meetand just happen know what new goody has boards year aint tellin what can assure you wont want miss biggest best Electric Fly country Am biased what motor power supply bench item growing interest more readers seems folks want some way benchcheck motors props having charge up flight battery Thats very understand ableI myself readers have enquired about power supply personally usethe pictured part three About Electrics series ran MA few years ago particular installment appeared November 1983 issue Im amazed readers retain refer 10-part mini-course Anyway often inquiry requests information build like similar supply can obtained Well Im very sorry say power supply one-of-a-kind its constructed junk-box parts major component failed Id personally hard-pressed replace very much dislikeand feel uncomfortable withthe situation its best could myself reason Im predicament buy such power supplyor build its equivalent new partswould cost small fortune Some readers have found out firsthand Realizing interested such power supply may someday have need replacement Ive conscientiously looking way provide capacity needed reasonable cost effort So farno luck Such supply should have smoothly-variable output up about 30 volts 30 amps adequately cover needs almost kilowatt total capability though readers using flight systems having anywhere near total power individual capabilities voltage current needed seems some readers may want run 40s so-called equivalent 18 cells about 28 volts Other readers just want run cobalt 05s six- seven-cell motors 12-volt supply would suit needs have 20-amp current handing capability Thus suitable bench supply should have combined capabilities describedjust things make item very costly quite bulky heavy besides Nevertheless should lucky find suitable approach share assured youll find future issue MA Before leave topic completely Id like respond right Ive done individuals several occasions No cannot take household auto battery charger Astro 4005 B AC/DC charger connect its output now discontinued Astro Voltage Booster Radio Shack Voltage Inverter attempt get higher voltages necessary bench-run cobalt 15/25/40 doing Continued page 163 Detailed screen printed designs brilliant colors FRONT BACK ot BLACK premium weight USA made tshirts Sizes 5 M L XLCatalog 8100 Dynamic cap designs clearly Leading Edge Technology' Cap size adjustable sizt fits Available Shins two-sided $1295 A/F-4 F-lBB-iSR-71 c-s F-i4 Nightmare F-i4 A-7B-52Flil 0-130 F-ill Terrorize F-is A-bT-3eKO-135 C-141 F-lB Shijie F-16 AH-1M-i6-52 Arms Deal Available flIfls one-sided $1095 F-i Ii Libyian SunriseF-i Ii Warsaw Pact 6-52 Reach Out6-52 Send Beat Minimum 24 Shirt Order $250 ott shirt Available Caps $795 F-iSSR-il6-25P-47Space Shuttle F-16B-i B6-29ZeroTop Gun Minimum 24 Cap Order $150 oft cap ShippingFirstEa Addl Shirt/CapShirt/Cap USA$200$ 50 Canada$350$100 Other$550$150 Delivery Allow 2 3 weeks MENISA ORDERS CALL TOLL FREE 47-1726 Ext 6 Inside TX Oustomer OslI 9151 695-OgiB Ext 2 Texas customers add 6/a% tax No OODa send order check including shipping charges PACIFIC COAST OF TEXAS 2917 Robertson Dr Dept 16Abilene TX 79606 June198751 $425 AVAILABLE AT AMERICAS DISTRIBUTED BYFINEST HOBBY SHOPS SOS SMlflflHI ZND WE 13558550 Sa Gab e R ad oadero CA 93422 1 4651717 ~ CATALOG $750 1000s choose Solar rubber powered gliders copters scale tasercut diecut youcut rockets origami some wing span 6 feet ALL MADE OUT OF PAPER Limited number printed 18188423455PAPER AIRPLANES INTERNATIONAL1213822-9185 1521 Morningslde Drive Burbank California91506USA MAGNIFICENT HIGH TECHNOLOGY AVIATION ART INTRODUCING LESS THE NEW WDRIVER MANUFACTURED BY AEG POWER TOOL CORP IDEAL TOOL FOR BUILDING MODELS Automatic Torque Release 6 Torque Positions Torque Setting 5-16 inch/lb NI-CAD Battery Charger 2 Bits Included Instruction Book Warranty Included Send Money Order J C DEVELOPMENT CO ox 2406 Fullerton CA 92633 MODEL EZ-501 Dealer Price $3000 Minimum 6 Sets Calif Residents Add Sales Tax Plus $400 Shipping & Handling size order 714 879-3266 cho Morris 2715 Eastbrook Dr Mesquite TX 75150 idea regional Soaring associations excellent great method getting bigger groups Sailplaners together Probably oldest association Eastern Soaring Leaguewhich gave rise NSS National Soaring Society LA area has Southern California Soar ing Clubsalso called SC2—which consists Pasadena Soaring Society PSS Pacific RC Soar ing Association PSA North Country Clouds NCC Harbor Soaring Society HSS Soaring Union LA SULA Inland Soaring Society ISS great Northwestern US represented Northwest Soaring Society has about 140 members mainly Washington Oregon Idaho Western Canada other regional associations Im aware please write can spread gospel Colorado have two Soaring clubs located Denver-Boulder area Co lorado Springs So nature activities closely combined 1985 Pikes Peak Club president Randy Reynolds decided two clubs should have western-style shoot-out states bragging rights So Colorado Challenge Cup insti tuted has become regular fixture contest calendar no limit number fliers club winning side deter mined top five scorers club Challenge neighbor clubyoull enjoy Club newsletter exchange Editors en couraged send name address well see other editors would like begin exchange month have Randy Reynolds Pikes Peak Soaring Society Colorado Springs Vaughn Entwistle Greater De troit Soaring Hiking Society Randys address 122 East Unitab Colorado Springs CO 80903 Vaughns 36098 Jeffrey Drive Sterling Heights MI 48310 Byron Blokeslee 3134 Winnebago Dr Se dalia CO 80135 RC Electrics/Kopski Continued page 51 think thing wouldnt burned crisp would motor Twins subject question posed readers long time ago February 1985 matter fact time enquired anyone knew . better spend same total electrical power twin-motor installation versus single motor effect wondered two props better assuming same power expenditure Several readers kind enough respond hut opinions varied However Yesses outnumbered Nays I-dont-knows Well still am sure what answer However whatever reason can say twins showing up more Electric flying field often natural part Scale project theyre fun theyre easy implement readers have enquired about installation details thought Id share some answers everyone general best way wire twins series means positive terminal motor connected negative terminal second motor positive terminal second motor negative terminal first motor new combined motor leads two wires connected remainder system installationbattery fuse switch etc Just motors connected series also individual battery packs Thus motor normally runs example 12 cells two series-connected motors will run total battery 24 cells two twelve-packs wired series Hmmthats full case two distinct advantages series-twin installation total current drain battery same single motor very efficient motors batteries connected parallel other reasonable way configure twin total current drain would double bad news exception thiswhich Ill cover next month Wiring losses increase square current such losses would increase factor offour parallel-wired system Fuse rating would have doubleand dont know get suitable small fuses rated 40 amps addition switches speed controllers would gasp help under such tremendous currents recommended wiring diagram twins shown includes speed controller sake completeness want On/Off switch simply omit controller wiring Whatever custom particulars instal lation some provision must made charging battery very best way charge cells series once general requires charger capable high voltage-outputs Exam ples such chargers Robbe Automax Astro DC/DC Super Charger system described column May/June 1985 issues such charging capability available some provision must made section battery smaller packs disconnect individual packs charge individually popular lower-cost six- seven-cell charg ers reconnect subpacks form larger total battery Astro twin-motor sys tems provided wiring harnesses allow approach conjunction Model 4005D twin charger Finally response question regarding making twin simply installing two indepen dent systems two motors batteries switches etcdont true beauty Electric twin battery two motors neither ofthe latter can stop prematorely unlike liquid-fueled motivation single series-connected Electric circuit assures same nominal performance both motors throughout entire flight motor running otherand same nominal speed Continued page 170 THE DIFFERENT FOAM MODEL Leweat Cast MedeUng Send $100 latest fine-grain sheet foam 3 developments foam samples FREE foam sources Hard Shell finishes now lable Dozens easy build foam air plane plans Peanuts RIC FOAM SCALE MODELS 1 gD/iI RT Magazinea Box 1706 Huntsville AL 358071 INcr Different 5900/5t650 12/24 istues 5100 sample copy/USA oniy Published primarily forI Ithe RC Sport Flyer no curs boors Specializing lots HONEST tests aod comparisoos kits enginesI radios tools issue compared rwenrs-seoen 40 engines Free classifieds letters ness products crashes humor prizes sos tall tales begsnners column much keep fun Already 10000 monthly copies SUBSCRIBE TODA 1 II June1987 163 IMPORTED DIESELS A-MAereraD-CEDMYVSMUleEnVa PAW1aplln Standard N/C 01646 Aere A Marine VlntageSpert Centeat Send 6100 latermatle CARLSON ENGINE IMPORTS 814 East MarconI Phoehlx AZ 35022 1I ~aioatI CENDEAPOR Collectors Notice Just released AMA Museum BACK ISSUES Model Aviation magazinesNEW original car tons sale YEAR SETS ONLY Check selections below send SEPARATE $2200 CHECK individual set Orders will filled first-come basis set request sold out check will returned being cashed Limited Quantities Sets Are Complete I I I I Enclose separate $2200 check set ordered NO CASH NO CHARGES o 1975 July first issue o 1976 0197701982 0197801983 0197901984 0198001985 0198101986 Print carefully shipping label I I I I I U I I Name Street Address I CityStateZIP Make checks payable AMA Send orders Academy Model Aeronautics 1810 Samuel Morse Dr Reston VA 22090 rnrnrn ..I HOBBYPOXY TRUE TWO-PART EPOXY PAINTS 16 COLOR5 R ER EPOXY GLUES FOUR FORMULAS 5-MIN 10 45-MIN FAST FILL GRAIN FILLER OUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE RC Electrics/KopSki Continued page 163 Electric competition rules YOU follow column regular basis know past Ive argued heavily favor simple low-cost first-time AMA Electric competition rules other points view such EAA wherein complex demanding financially otherwise rules proposals favored final version rules proposal sub mitted EAA cycle rules changes published February Competition Newsletter beginning page 123 section Model Aviation proposal compro mise allowed local Contest Directors some options run events March Competition Newsletter reported Electric Contest Board cast its Initial Vote favor acceptance rule 10 Yes zero No margin As see very best can hope circumstances wherein different strong points view no matter what issue compromise new Electric rules-proposal represents compromise workable opinionprovided Electric CDs advertise options have selected meet very important CD elects go three-flights per-charge approach have publihed favored modelers planes can reasonably participate other hand CD elects use EAA-proposed option limited motor runs modelers costly systems can reasonably compete Thus contestants traveling considerable distance contest very important rulesoptions selected made known advance CDs take note situation lest invite violent reaction majority Electric modelersthose simply cant afford dont want very best Now Electric rules matter pretty much put bed 10 0 victory Initial Vote think its sure bet proposed rule will pass Final Vote too Id like add personal Thank right Woody Blanchard Hampton VA serving Electric Contest Board chairman cant help feel must have frust ratingeven brutalizingand mostly unappre ciated job times Finally Id like close months column passing along two recent observations Ijust opportunity look car motor Mabuchi RX-540SD dont know much about cars thing about motor impressed motors label contained following words Max Input Voltage DC 12VMax Input Power 80 W Also just recently noticed Hobby Lobby ad RCM Super Olympus belt-drive electric power unita product Ive yet seen Part description reads 110-watt Mabuchi motor ll folks very sort thing advocated April column neither label complete illus trated thenits start can hardly wait day can report whos first full-up job motor labels dustry take note Please send comment question SASE please Bob Kopski 25 West End Dr Lansdale PA 19446 Since some readers ask writing column part total hobby enjoyment derive lots personal enjoyment building flying Electricand writing column hope others enjoy Electric Electric Elationfirst-time continuing Electric suc cess Fun what hobby make living either hobby writing profession Im electronics engineer Hap py quiet landings everyone RC Giant Scale/de Vries Continued page 53 order things documentation booklet will ease judges job set up properly cover book should identify model note name can attractive introduction model logotype trademark prototypes manufacturer appropriate doll up cover first page book can essentially write-up history models prototype giving such data dimensions performance choose use plastic model document Giant first page booklet good place identify manufac turer plastic kit scale plastic model second page should contain threeview have following pages should contain selection photos airplane modeled Since color markings may handled photos descriptive page noting may may required Finally though isnt strictly documen tation should page noting com mercial parts used constructing model Its 170 Model Aviation P * ****** ***** * ** * **** ****** BALSA WOOD W PIeteset DER PLANS 0 INEXPENSIVE 0 EASY TO BUILD 0-FLYING MODELS 0FAMOUS AIRCRAFT REPLICAS 0-RUBBER BAND HAND LAUNCH 11 EACH 551555 FlYING TO ORDER COMPLETE STAR KRAFT MODEl EROS I/IASHEETSET 057 PLANSso sex 321 BALSA & 3/16 STICK sALSA SEND $7SH PL5S NOUNTIPUL 5T 540tH 1155 LISS THAN ODE SHEET $1 55 POSTAGE TO AND ONE STICK PER MODEl. 17 DIFFERENT PLANS INCLUDtNG F-laF-16 F-lBF-4 U-2A-S SPACE SHUTTLE tO OTHERS U I HOOBYPOXY DIVISION Pettil Paint Company IDE 36 Pine Street Rockaway NJ 07866