Radio Technique George M Myers ELECTRIC THINGS Its probably no secret havent shown much interest electric-powered RC models thing Id seen prior Keystone RC Club Electric Fly-In September 22-23 1984 Hatfield PA gave idea electric-motored RC models like rubber-powered Free Flight models initial power burst left out Now know better started good friend Larry Sribnick SR Batteries man coiwinced take break seemingly end less weekend grind proposal-writing Grumman Aerospace Corp favor getting up 500 am take four-hour drive Pennsylvania should mention Larry lives further out Long Island NY lie get up 400 am Larry keeps telling great Electric flying keep saying things like Someday maybe basis Id never seen really large group Electric-powered aircraft weather forecast looked good went time well spent First impressions larger quantity variety models present anticipated Four basic types pres ent 1 Electri&powered Sailplanes 2 Sport models looked flew like 1AA Pylon Racers 3 Scale models looked flew like Jumbo-Scale rubber models 4 Some very-highly-developed specialty models would stand out gathering RC modelers field nicely prepared looked bit small surprisingly large turnout location next long high factory wall seemed have some built-in problems particularly wind chose blow toward away wall didnt chose blow right out sun down long dimension field Clear blue sky Comfortable temperature humidity Fly-In well-organized Keystone RC Club members ran well attended seemed well satisfied specialty models modelers made big impression Dr Keith Shaw physicist University Michigan determines atomic structure molecules measuring scattering laser light notes correct Obviously Dr Shaw believes scientific method applies hobby brought four absolutely gorgeous completely dif ferent models meet highly-developed jewel its own right Pattern model looked somewhat like small Tiporare derived own earlier alcoholpowered Pattern design called Columbia flew just like other Pattern model youve seen quieter also version Leon Shul man Zomby flew like Zomby out late 1940s quieter satisfy Scale enthusiasts Keith pre sented Mk lA Spitfire retracting landing gear no less took off 40 Model Aviation Keith Shaw hooks RC-Assist Old-Timer Zomby charging station four provided Bob Kopskls Spectra foreground Everything see RC ElectrIc Tents background registration transmitter impound Frank Vilioni L sweeps transmitters impound version John Langes RF Wand featured August October 1984 Columns detects transmitters left ON John Smith R kept use frequency clips order Some filers using 53 MHz Ham bandwhere 534 MHz frequency flag BiackIYeiiow looked lot like RC4O YeiiowIBiack flag number boards RC4O mollified situation landed grass field just like Quickee 500 flight aerobatic could ask looked very realistic piece de resistance version Horten B-2 Flying Wing course developing model Dr Shaw friend cut out over 150 bluefoam models just get parame ters right Well got right plane handles beautifully believe claims have clocked 85 mph though speed trap doesnt expect see amphibi ans seaplanes flying off grass field Nelson Whitman Simsbury CT three hydros AA size Several folks went out way tell Nelson created quite stir Brimfield CT Hydro meet year challenged alcohol-burners own turf speak Apparent ly Nelson doesnt give up easily spent some contest time telling history models traces back 1975 thing Im learning Electric afficionados persistent walking about pits talking people put AMA Frequency Committee Chairman hat figuratively asked about problems new RC channels flags SRF radios flags interference problems etc Dan Mitten Ham professional electronics engineering representative spent some time discussing new Ham channels RCOI thru RClO Dan admits has seen some repeater activity 53 MHz band thinks still quieter 508 MHz chunk Most other Hams Ive spoken agree him However before rushing off make some kind change Id advise give band plan some time mature Remember its voluntary some people take get around volunteering None people spoke ever seen SRF radio flag let alone flown Therefore no data subject couple people opined they would probably put channel leave wouldnt need present flags What got some decided change channels didnt know what theyd Interference reports few undefined Most problems sounded like could cured finding out what wrong radio some complaints number-board flags causing tips antennas get bent insist wrapping number-board around antenna cant collapse antenna completely problem can appear other hand make lower tachment can slip over base collapsed antenna Ace RC flag wont did see instance interference meet Larry Sribnicks plane RC4O some distance its con trolling transmitter flew close another transmitter wearing RC38 flag snaprolled Subsequent ground tests showed Larrys system normal ground range away offend ing transmitter no range lots jitters nearby Larrys set just recently back manufacturer RC channel changed set tuned up evidence present looked like clear-cut case interference no measuring tools us could prove unit off frequency much let typical inter ference report unfortunately also becoming common form interContinued page 140 January1985 41 Nelson Whitman L bends task preparing fiest hydroplanes fiight whiie another Eiectric RCer asks him does Larry Sribnick camera-carrying Oiympic 650 powered 05 cobait motor six-ceil battery pack SR EPi 200 course Larry Mr SR Batteries Dr Keith Shaw fast smooth-fiying version WW ii Horten B-2 fiying wing claims its clocked atS5 mph George would love MA construction article ASSOCIAm INC 21668 CLOUD WAY ARD CA 94O45 415-783-4368 1 HinD866D 0 - 4 L IMAA/Bsckman Continued page 137 several modelers came spectators because figured talked-of 1000 airplanes would never get chance fly As mat ter fact heard no complaints score lot people got lot flying done seldom less four big birds air early morn ing until late afternoon real reason going things meet talk people especially true whatever reason dont have plane fly year Evelyn made some new friends renewed some old relationships Chief among latter Bob Iris Morse Santa Clara CA Jerry Martha Rhodes Eagle Pass TX Morses old friends way back Rhodes new friends last year Ida Grove Among years crop acquaintances Lou Proctor have long admired work first meeting Travel aire 2000 real standouts years FFF Two regular features IMAAs extrav aganza Friday evening picnic Saturday night banquet didnt make picnic heard good reports Saturday night fling / delightful food reasonably good speeches reasonably short unhappy note eve ning announcement Les Hard retiring High Flight editor owe Les lot job has done last few years should take chance get express gratitude Below listed vital statistics aircraft photos no means noteworthy models present Time didnt allow get pic tures everything available space doesnt allow print pic tures did take AT-6 George Normington Irvine CA Ziroli kit scale Kioritz 24 Dynathrust 20-10 30 lb covered chrome Mono Kote burnished 3M abrasive pad retracts Bristol Scout Jerry Rhodes Eagle Pass TX STARS plans available MAN scale Quadra original version over 105 hours running time Dynathrust 20-8 21 lb Bronco OV-1OA Nick Rivaldo Wil mington CA scratch-built based manufacturer drawings / scale two 23 Cobras Zinger 20-6 three-bladed props 52 lb two receivers 13 servos working flaps Cobra biplane racer Ralph Knight Riverside CA Santich plans MAN scale Super Tartan Zinger 20-10 23 lb Corsair F4U1D JW Jones Dallas Span 71 Area 612 sq Length 46 Engine 40- 60 Cu Radio 4 channels Weight 5% lbs Material Fiberglass fuse. balsa covered foam wing balsa tail Air Flair Mfg PO Box 11702 Kansas City MO 64138 816J 353-7854 TX Ziroli plans scale Sachs-Dolmar 37 Zinger 22-10 32 lb operating flaps added Ercoupe Erco 415C Dick Skoglund Lancaster CA Messer kit scale OS 108 Zinger 15-6 18 lb Krier Great Lakes Gary Pozzi King City CA plans Larry Scott scale Zenoah 23 18-8 prop 19 lb Mr Mulligan Howard DGA-5 Jack Kilgore Layton UT Nosen kit scale Quadra original version Dynathrust 18-8 21 lb Mustang P-51D Dick Smith Yorba Linda CA Nosen kit scale Kawasaki 315 Zinger 22-10 41 lb mods kit including working flaps Travelalre 2000 Lou Proctor San Diego CA scratch-built based factory drawings scale Tartan Twin Zinger 22-6 21 lb Waco YMF Jim Johnson Oxnard CA scratch-built scale Tecumseh 6 cu homemade 26-8 prop 48 lb Radio TechniquslMyors Continued page 41 ference report need some cheap reli able way separate Out bad systems no matter owns operates No didnt see electric Helicopters meet brings up thought Michael Bock Brooklyn NY called 140 Model Aviation UNDERDOG Factory $7895 Price Astoundingnotminaoie plastics.. Very light weight discriminating hobbiest. Either Pilot version kit.. Sportsman Barnstormer.. arn Good Airmen .. complete See Dealer add . .....Dollar direct order handling6881 MSlaeflS SOd 7% 8166e TaD HOT WIRE FOAM CUTlER ATTENTION ORATON BUILDERS r cutting foam wings ats turtle decks model parts made foom uts over 7 foot wing pan Operates 12 volt motor cycle battery cith Instructions detlar 12439 orotrder BIack Hawk MsnuIscIu, 0368ibolor 08 Fine Mode POdDDN P01ox221 Mt Morris MI 46458 S KY FOX SPORT FLYER Wing Span Wing Area Length Weight Engine Radio SEE YOUR 54 Inches 620 Sq 43 Inches 55 Lbs 40 50 4 Channel DEALER RLA MODELS513866-0105 P 0 BOX 640 WEST CARROLLTON OHIO 45449 Direct Orders Send check money order pay shipping handling Ohio residents add 6% Sales Tax $7495 problemand suggested solu tion problem group formerly all-airplane club has taken interest flying Helicopters want fly club field isnt working out After considering alternate solutions some make sense now looking idea 1 Survey members find out RC channels using purpose 2 Assign Airplane Only Heli copter Only channels club basis according distribution falls now will make sense later Mike leaning toward idea Helicopters should use 72400 Mhz under take over replacement low-band channels released 1987 Airplanes should use RC38 up now forever reas oning airplanes usually fly higher farther away control trans mitters hence likely see destructive interference operating old even-numbered channels Aiso fields area getting smaller fewer number seems likely choppers will replace airplanes ever-increasing percentages number available channels will increase about same rate need increases What think idea Now dont flip back Bob Kopskis feature article get authoritative word what went Hatfield George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY ToolslCostlow Continued page 44 will hold servo amplifier other small printed circuit board can glue spacer between hold wider objects Glue some modified clips short piece 2 4 wood will have stationary mount clips Take clothespin apart reverse spring makes tweezer type clip can also sand nose clothes pin angle will give much closer grip Avoid cheap clothespins have found just arent worth less couple dollars should able get bag 50 good quality clips get very frustrated have drill holes model An electric drill big clumsy usually need hand drill ties up both hands its awk ward hold fuselage between knees drill looking solution came up what call Handrills Generally about five drill bits will cover appli cations some stores have set couple dollars Pick up 2-ft length clothes pole lumberyard Cut suitable lengths used 3-in pieces may want try 2 smaller bits possible use drill press next step bits bought drill hole center end length Rough-up shank bit press drilled holes Use thin CyA apply around bit until wood wont absorb anymore Mark Handrills its respective size may want make small stand hold drills Use would screwdriver make holes firewalls engine mounts fuel lines pushrods etc A-in bit perfect drilling holes servo rails No 2 screws wont replace regu lar drill will surprised applications have outset mentioned some ideas stolen originated compliments fine idea Check local hobby shop items mentioned contact following manufacturers Dremel Racine WI 53406 DG Products 209 Carrlands Dr Dayton OH 45429 Robart 310 N 5th St Charles IL 60174 House Balsa 20134 State Rd Cer ritos CA 90701 Merit Abrasive Products 201 W Man ville PO Box 5447 Compton CA 90224 RC SoaringlPruss Continued page 47 month happy provide picture finished product mod el flown two days after picture taken May article Martin reports after satisfactory test flights 22 pounds lead ballast added increase performance brought weight bird up 75 kg thats about 164 pounds bird DG-202 scale three-and-a-half Span five meters fuselage length two meters Airfoils used wing Wortmann sections start FX6l-163 transition FX-140 subsequently changing FX6O-126 stab measures 0164 meters has NACA 0012 section Wing area just under square meter Birds type designed primarily slope flying fully aerobatic contrast Bamerts creation Larry Jolly shows latest designs January1985 141 Engineered sport modeler mind
Edition: Model Aviation - 1985/01
Page Numbers: 40, 41, 140, 141
Radio Technique George M Myers ELECTRIC THINGS Its probably no secret havent shown much interest electric-powered RC models thing Id seen prior Keystone RC Club Electric Fly-In September 22-23 1984 Hatfield PA gave idea electric-motored RC models like rubber-powered Free Flight models initial power burst left out Now know better started good friend Larry Sribnick SR Batteries man coiwinced take break seemingly end less weekend grind proposal-writing Grumman Aerospace Corp favor getting up 500 am take four-hour drive Pennsylvania should mention Larry lives further out Long Island NY lie get up 400 am Larry keeps telling great Electric flying keep saying things like Someday maybe basis Id never seen really large group Electric-powered aircraft weather forecast looked good went time well spent First impressions larger quantity variety models present anticipated Four basic types pres ent 1 Electri&powered Sailplanes 2 Sport models looked flew like 1AA Pylon Racers 3 Scale models looked flew like Jumbo-Scale rubber models 4 Some very-highly-developed specialty models would stand out gathering RC modelers field nicely prepared looked bit small surprisingly large turnout location next long high factory wall seemed have some built-in problems particularly wind chose blow toward away wall didnt chose blow right out sun down long dimension field Clear blue sky Comfortable temperature humidity Fly-In well-organized Keystone RC Club members ran well attended seemed well satisfied specialty models modelers made big impression Dr Keith Shaw physicist University Michigan determines atomic structure molecules measuring scattering laser light notes correct Obviously Dr Shaw believes scientific method applies hobby brought four absolutely gorgeous completely dif ferent models meet highly-developed jewel its own right Pattern model looked somewhat like small Tiporare derived own earlier alcoholpowered Pattern design called Columbia flew just like other Pattern model youve seen quieter also version Leon Shul man Zomby flew like Zomby out late 1940s quieter satisfy Scale enthusiasts Keith pre sented Mk lA Spitfire retracting landing gear no less took off 40 Model Aviation Keith Shaw hooks RC-Assist Old-Timer Zomby charging station four provided Bob Kopskls Spectra foreground Everything see RC ElectrIc Tents background registration transmitter impound Frank Vilioni L sweeps transmitters impound version John Langes RF Wand featured August October 1984 Columns detects transmitters left ON John Smith R kept use frequency clips order Some filers using 53 MHz Ham bandwhere 534 MHz frequency flag BiackIYeiiow looked lot like RC4O YeiiowIBiack flag number boards RC4O mollified situation landed grass field just like Quickee 500 flight aerobatic could ask looked very realistic piece de resistance version Horten B-2 Flying Wing course developing model Dr Shaw friend cut out over 150 bluefoam models just get parame ters right Well got right plane handles beautifully believe claims have clocked 85 mph though speed trap doesnt expect see amphibi ans seaplanes flying off grass field Nelson Whitman Simsbury CT three hydros AA size Several folks went out way tell Nelson created quite stir Brimfield CT Hydro meet year challenged alcohol-burners own turf speak Apparent ly Nelson doesnt give up easily spent some contest time telling history models traces back 1975 thing Im learning Electric afficionados persistent walking about pits talking people put AMA Frequency Committee Chairman hat figuratively asked about problems new RC channels flags SRF radios flags interference problems etc Dan Mitten Ham professional electronics engineering representative spent some time discussing new Ham channels RCOI thru RClO Dan admits has seen some repeater activity 53 MHz band thinks still quieter 508 MHz chunk Most other Hams Ive spoken agree him However before rushing off make some kind change Id advise give band plan some time mature Remember its voluntary some people take get around volunteering None people spoke ever seen SRF radio flag let alone flown Therefore no data subject couple people opined they would probably put channel leave wouldnt need present flags What got some decided change channels didnt know what theyd Interference reports few undefined Most problems sounded like could cured finding out what wrong radio some complaints number-board flags causing tips antennas get bent insist wrapping number-board around antenna cant collapse antenna completely problem can appear other hand make lower tachment can slip over base collapsed antenna Ace RC flag wont did see instance interference meet Larry Sribnicks plane RC4O some distance its con trolling transmitter flew close another transmitter wearing RC38 flag snaprolled Subsequent ground tests showed Larrys system normal ground range away offend ing transmitter no range lots jitters nearby Larrys set just recently back manufacturer RC channel changed set tuned up evidence present looked like clear-cut case interference no measuring tools us could prove unit off frequency much let typical inter ference report unfortunately also becoming common form interContinued page 140 January1985 41 Nelson Whitman L bends task preparing fiest hydroplanes fiight whiie another Eiectric RCer asks him does Larry Sribnick camera-carrying Oiympic 650 powered 05 cobait motor six-ceil battery pack SR EPi 200 course Larry Mr SR Batteries Dr Keith Shaw fast smooth-fiying version WW ii Horten B-2 fiying wing claims its clocked atS5 mph George would love MA construction article ASSOCIAm INC 21668 CLOUD WAY ARD CA 94O45 415-783-4368 1 HinD866D 0 - 4 L IMAA/Bsckman Continued page 137 several modelers came spectators because figured talked-of 1000 airplanes would never get chance fly As mat ter fact heard no complaints score lot people got lot flying done seldom less four big birds air early morn ing until late afternoon real reason going things meet talk people especially true whatever reason dont have plane fly year Evelyn made some new friends renewed some old relationships Chief among latter Bob Iris Morse Santa Clara CA Jerry Martha Rhodes Eagle Pass TX Morses old friends way back Rhodes new friends last year Ida Grove Among years crop acquaintances Lou Proctor have long admired work first meeting Travel aire 2000 real standouts years FFF Two regular features IMAAs extrav aganza Friday evening picnic Saturday night banquet didnt make picnic heard good reports Saturday night fling / delightful food reasonably good speeches reasonably short unhappy note eve ning announcement Les Hard retiring High Flight editor owe Les lot job has done last few years should take chance get express gratitude Below listed vital statistics aircraft photos no means noteworthy models present Time didnt allow get pic tures everything available space doesnt allow print pic tures did take AT-6 George Normington Irvine CA Ziroli kit scale Kioritz 24 Dynathrust 20-10 30 lb covered chrome Mono Kote burnished 3M abrasive pad retracts Bristol Scout Jerry Rhodes Eagle Pass TX STARS plans available MAN scale Quadra original version over 105 hours running time Dynathrust 20-8 21 lb Bronco OV-1OA Nick Rivaldo Wil mington CA scratch-built based manufacturer drawings / scale two 23 Cobras Zinger 20-6 three-bladed props 52 lb two receivers 13 servos working flaps Cobra biplane racer Ralph Knight Riverside CA Santich plans MAN scale Super Tartan Zinger 20-10 23 lb Corsair F4U1D JW Jones Dallas Span 71 Area 612 sq Length 46 Engine 40- 60 Cu Radio 4 channels Weight 5% lbs Material Fiberglass fuse. balsa covered foam wing balsa tail Air Flair Mfg PO Box 11702 Kansas City MO 64138 816J 353-7854 TX Ziroli plans scale Sachs-Dolmar 37 Zinger 22-10 32 lb operating flaps added Ercoupe Erco 415C Dick Skoglund Lancaster CA Messer kit scale OS 108 Zinger 15-6 18 lb Krier Great Lakes Gary Pozzi King City CA plans Larry Scott scale Zenoah 23 18-8 prop 19 lb Mr Mulligan Howard DGA-5 Jack Kilgore Layton UT Nosen kit scale Quadra original version Dynathrust 18-8 21 lb Mustang P-51D Dick Smith Yorba Linda CA Nosen kit scale Kawasaki 315 Zinger 22-10 41 lb mods kit including working flaps Travelalre 2000 Lou Proctor San Diego CA scratch-built based factory drawings scale Tartan Twin Zinger 22-6 21 lb Waco YMF Jim Johnson Oxnard CA scratch-built scale Tecumseh 6 cu homemade 26-8 prop 48 lb Radio TechniquslMyors Continued page 41 ference report need some cheap reli able way separate Out bad systems no matter owns operates No didnt see electric Helicopters meet brings up thought Michael Bock Brooklyn NY called 140 Model Aviation UNDERDOG Factory $7895 Price Astoundingnotminaoie plastics.. Very light weight discriminating hobbiest. Either Pilot version kit.. Sportsman Barnstormer.. arn Good Airmen .. complete See Dealer add . .....Dollar direct order handling6881 MSlaeflS SOd 7% 8166e TaD HOT WIRE FOAM CUTlER ATTENTION ORATON BUILDERS r cutting foam wings ats turtle decks model parts made foom uts over 7 foot wing pan Operates 12 volt motor cycle battery cith Instructions detlar 12439 orotrder BIack Hawk MsnuIscIu, 0368ibolor 08 Fine Mode POdDDN P01ox221 Mt Morris MI 46458 S KY FOX SPORT FLYER Wing Span Wing Area Length Weight Engine Radio SEE YOUR 54 Inches 620 Sq 43 Inches 55 Lbs 40 50 4 Channel DEALER RLA MODELS513866-0105 P 0 BOX 640 WEST CARROLLTON OHIO 45449 Direct Orders Send check money order pay shipping handling Ohio residents add 6% Sales Tax $7495 problemand suggested solu tion problem group formerly all-airplane club has taken interest flying Helicopters want fly club field isnt working out After considering alternate solutions some make sense now looking idea 1 Survey members find out RC channels using purpose 2 Assign Airplane Only Heli copter Only channels club basis according distribution falls now will make sense later Mike leaning toward idea Helicopters should use 72400 Mhz under take over replacement low-band channels released 1987 Airplanes should use RC38 up now forever reas oning airplanes usually fly higher farther away control trans mitters hence likely see destructive interference operating old even-numbered channels Aiso fields area getting smaller fewer number seems likely choppers will replace airplanes ever-increasing percentages number available channels will increase about same rate need increases What think idea Now dont flip back Bob Kopskis feature article get authoritative word what went Hatfield George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY ToolslCostlow Continued page 44 will hold servo amplifier other small printed circuit board can glue spacer between hold wider objects Glue some modified clips short piece 2 4 wood will have stationary mount clips Take clothespin apart reverse spring makes tweezer type clip can also sand nose clothes pin angle will give much closer grip Avoid cheap clothespins have found just arent worth less couple dollars should able get bag 50 good quality clips get very frustrated have drill holes model An electric drill big clumsy usually need hand drill ties up both hands its awk ward hold fuselage between knees drill looking solution came up what call Handrills Generally about five drill bits will cover appli cations some stores have set couple dollars Pick up 2-ft length clothes pole lumberyard Cut suitable lengths used 3-in pieces may want try 2 smaller bits possible use drill press next step bits bought drill hole center end length Rough-up shank bit press drilled holes Use thin CyA apply around bit until wood wont absorb anymore Mark Handrills its respective size may want make small stand hold drills Use would screwdriver make holes firewalls engine mounts fuel lines pushrods etc A-in bit perfect drilling holes servo rails No 2 screws wont replace regu lar drill will surprised applications have outset mentioned some ideas stolen originated compliments fine idea Check local hobby shop items mentioned contact following manufacturers Dremel Racine WI 53406 DG Products 209 Carrlands Dr Dayton OH 45429 Robart 310 N 5th St Charles IL 60174 House Balsa 20134 State Rd Cer ritos CA 90701 Merit Abrasive Products 201 W Man ville PO Box 5447 Compton CA 90224 RC SoaringlPruss Continued page 47 month happy provide picture finished product mod el flown two days after picture taken May article Martin reports after satisfactory test flights 22 pounds lead ballast added increase performance brought weight bird up 75 kg thats about 164 pounds bird DG-202 scale three-and-a-half Span five meters fuselage length two meters Airfoils used wing Wortmann sections start FX6l-163 transition FX-140 subsequently changing FX6O-126 stab measures 0164 meters has NACA 0012 section Wing area just under square meter Birds type designed primarily slope flying fully aerobatic contrast Bamerts creation Larry Jolly shows latest designs January1985 141 Engineered sport modeler mind
Edition: Model Aviation - 1985/01
Page Numbers: 40, 41, 140, 141
Radio Technique George M Myers ELECTRIC THINGS Its probably no secret havent shown much interest electric-powered RC models thing Id seen prior Keystone RC Club Electric Fly-In September 22-23 1984 Hatfield PA gave idea electric-motored RC models like rubber-powered Free Flight models initial power burst left out Now know better started good friend Larry Sribnick SR Batteries man coiwinced take break seemingly end less weekend grind proposal-writing Grumman Aerospace Corp favor getting up 500 am take four-hour drive Pennsylvania should mention Larry lives further out Long Island NY lie get up 400 am Larry keeps telling great Electric flying keep saying things like Someday maybe basis Id never seen really large group Electric-powered aircraft weather forecast looked good went time well spent First impressions larger quantity variety models present anticipated Four basic types pres ent 1 Electri&powered Sailplanes 2 Sport models looked flew like 1AA Pylon Racers 3 Scale models looked flew like Jumbo-Scale rubber models 4 Some very-highly-developed specialty models would stand out gathering RC modelers field nicely prepared looked bit small surprisingly large turnout location next long high factory wall seemed have some built-in problems particularly wind chose blow toward away wall didnt chose blow right out sun down long dimension field Clear blue sky Comfortable temperature humidity Fly-In well-organized Keystone RC Club members ran well attended seemed well satisfied specialty models modelers made big impression Dr Keith Shaw physicist University Michigan determines atomic structure molecules measuring scattering laser light notes correct Obviously Dr Shaw believes scientific method applies hobby brought four absolutely gorgeous completely dif ferent models meet highly-developed jewel its own right Pattern model looked somewhat like small Tiporare derived own earlier alcoholpowered Pattern design called Columbia flew just like other Pattern model youve seen quieter also version Leon Shul man Zomby flew like Zomby out late 1940s quieter satisfy Scale enthusiasts Keith pre sented Mk lA Spitfire retracting landing gear no less took off 40 Model Aviation Keith Shaw hooks RC-Assist Old-Timer Zomby charging station four provided Bob Kopskls Spectra foreground Everything see RC ElectrIc Tents background registration transmitter impound Frank Vilioni L sweeps transmitters impound version John Langes RF Wand featured August October 1984 Columns detects transmitters left ON John Smith R kept use frequency clips order Some filers using 53 MHz Ham bandwhere 534 MHz frequency flag BiackIYeiiow looked lot like RC4O YeiiowIBiack flag number boards RC4O mollified situation landed grass field just like Quickee 500 flight aerobatic could ask looked very realistic piece de resistance version Horten B-2 Flying Wing course developing model Dr Shaw friend cut out over 150 bluefoam models just get parame ters right Well got right plane handles beautifully believe claims have clocked 85 mph though speed trap doesnt expect see amphibi ans seaplanes flying off grass field Nelson Whitman Simsbury CT three hydros AA size Several folks went out way tell Nelson created quite stir Brimfield CT Hydro meet year challenged alcohol-burners own turf speak Apparent ly Nelson doesnt give up easily spent some contest time telling history models traces back 1975 thing Im learning Electric afficionados persistent walking about pits talking people put AMA Frequency Committee Chairman hat figuratively asked about problems new RC channels flags SRF radios flags interference problems etc Dan Mitten Ham professional electronics engineering representative spent some time discussing new Ham channels RCOI thru RClO Dan admits has seen some repeater activity 53 MHz band thinks still quieter 508 MHz chunk Most other Hams Ive spoken agree him However before rushing off make some kind change Id advise give band plan some time mature Remember its voluntary some people take get around volunteering None people spoke ever seen SRF radio flag let alone flown Therefore no data subject couple people opined they would probably put channel leave wouldnt need present flags What got some decided change channels didnt know what theyd Interference reports few undefined Most problems sounded like could cured finding out what wrong radio some complaints number-board flags causing tips antennas get bent insist wrapping number-board around antenna cant collapse antenna completely problem can appear other hand make lower tachment can slip over base collapsed antenna Ace RC flag wont did see instance interference meet Larry Sribnicks plane RC4O some distance its con trolling transmitter flew close another transmitter wearing RC38 flag snaprolled Subsequent ground tests showed Larrys system normal ground range away offend ing transmitter no range lots jitters nearby Larrys set just recently back manufacturer RC channel changed set tuned up evidence present looked like clear-cut case interference no measuring tools us could prove unit off frequency much let typical inter ference report unfortunately also becoming common form interContinued page 140 January1985 41 Nelson Whitman L bends task preparing fiest hydroplanes fiight whiie another Eiectric RCer asks him does Larry Sribnick camera-carrying Oiympic 650 powered 05 cobait motor six-ceil battery pack SR EPi 200 course Larry Mr SR Batteries Dr Keith Shaw fast smooth-fiying version WW ii Horten B-2 fiying wing claims its clocked atS5 mph George would love MA construction article ASSOCIAm INC 21668 CLOUD WAY ARD CA 94O45 415-783-4368 1 HinD866D 0 - 4 L IMAA/Bsckman Continued page 137 several modelers came spectators because figured talked-of 1000 airplanes would never get chance fly As mat ter fact heard no complaints score lot people got lot flying done seldom less four big birds air early morn ing until late afternoon real reason going things meet talk people especially true whatever reason dont have plane fly year Evelyn made some new friends renewed some old relationships Chief among latter Bob Iris Morse Santa Clara CA Jerry Martha Rhodes Eagle Pass TX Morses old friends way back Rhodes new friends last year Ida Grove Among years crop acquaintances Lou Proctor have long admired work first meeting Travel aire 2000 real standouts years FFF Two regular features IMAAs extrav aganza Friday evening picnic Saturday night banquet didnt make picnic heard good reports Saturday night fling / delightful food reasonably good speeches reasonably short unhappy note eve ning announcement Les Hard retiring High Flight editor owe Les lot job has done last few years should take chance get express gratitude Below listed vital statistics aircraft photos no means noteworthy models present Time didnt allow get pic tures everything available space doesnt allow print pic tures did take AT-6 George Normington Irvine CA Ziroli kit scale Kioritz 24 Dynathrust 20-10 30 lb covered chrome Mono Kote burnished 3M abrasive pad retracts Bristol Scout Jerry Rhodes Eagle Pass TX STARS plans available MAN scale Quadra original version over 105 hours running time Dynathrust 20-8 21 lb Bronco OV-1OA Nick Rivaldo Wil mington CA scratch-built based manufacturer drawings / scale two 23 Cobras Zinger 20-6 three-bladed props 52 lb two receivers 13 servos working flaps Cobra biplane racer Ralph Knight Riverside CA Santich plans MAN scale Super Tartan Zinger 20-10 23 lb Corsair F4U1D JW Jones Dallas Span 71 Area 612 sq Length 46 Engine 40- 60 Cu Radio 4 channels Weight 5% lbs Material Fiberglass fuse. balsa covered foam wing balsa tail Air Flair Mfg PO Box 11702 Kansas City MO 64138 816J 353-7854 TX Ziroli plans scale Sachs-Dolmar 37 Zinger 22-10 32 lb operating flaps added Ercoupe Erco 415C Dick Skoglund Lancaster CA Messer kit scale OS 108 Zinger 15-6 18 lb Krier Great Lakes Gary Pozzi King City CA plans Larry Scott scale Zenoah 23 18-8 prop 19 lb Mr Mulligan Howard DGA-5 Jack Kilgore Layton UT Nosen kit scale Quadra original version Dynathrust 18-8 21 lb Mustang P-51D Dick Smith Yorba Linda CA Nosen kit scale Kawasaki 315 Zinger 22-10 41 lb mods kit including working flaps Travelalre 2000 Lou Proctor San Diego CA scratch-built based factory drawings scale Tartan Twin Zinger 22-6 21 lb Waco YMF Jim Johnson Oxnard CA scratch-built scale Tecumseh 6 cu homemade 26-8 prop 48 lb Radio TechniquslMyors Continued page 41 ference report need some cheap reli able way separate Out bad systems no matter owns operates No didnt see electric Helicopters meet brings up thought Michael Bock Brooklyn NY called 140 Model Aviation UNDERDOG Factory $7895 Price Astoundingnotminaoie plastics.. Very light weight discriminating hobbiest. Either Pilot version kit.. Sportsman Barnstormer.. arn Good Airmen .. complete See Dealer add . .....Dollar direct order handling6881 MSlaeflS SOd 7% 8166e TaD HOT WIRE FOAM CUTlER ATTENTION ORATON BUILDERS r cutting foam wings ats turtle decks model parts made foom uts over 7 foot wing pan Operates 12 volt motor cycle battery cith Instructions detlar 12439 orotrder BIack Hawk MsnuIscIu, 0368ibolor 08 Fine Mode POdDDN P01ox221 Mt Morris MI 46458 S KY FOX SPORT FLYER Wing Span Wing Area Length Weight Engine Radio SEE YOUR 54 Inches 620 Sq 43 Inches 55 Lbs 40 50 4 Channel DEALER RLA MODELS513866-0105 P 0 BOX 640 WEST CARROLLTON OHIO 45449 Direct Orders Send check money order pay shipping handling Ohio residents add 6% Sales Tax $7495 problemand suggested solu tion problem group formerly all-airplane club has taken interest flying Helicopters want fly club field isnt working out After considering alternate solutions some make sense now looking idea 1 Survey members find out RC channels using purpose 2 Assign Airplane Only Heli copter Only channels club basis according distribution falls now will make sense later Mike leaning toward idea Helicopters should use 72400 Mhz under take over replacement low-band channels released 1987 Airplanes should use RC38 up now forever reas oning airplanes usually fly higher farther away control trans mitters hence likely see destructive interference operating old even-numbered channels Aiso fields area getting smaller fewer number seems likely choppers will replace airplanes ever-increasing percentages number available channels will increase about same rate need increases What think idea Now dont flip back Bob Kopskis feature article get authoritative word what went Hatfield George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY ToolslCostlow Continued page 44 will hold servo amplifier other small printed circuit board can glue spacer between hold wider objects Glue some modified clips short piece 2 4 wood will have stationary mount clips Take clothespin apart reverse spring makes tweezer type clip can also sand nose clothes pin angle will give much closer grip Avoid cheap clothespins have found just arent worth less couple dollars should able get bag 50 good quality clips get very frustrated have drill holes model An electric drill big clumsy usually need hand drill ties up both hands its awk ward hold fuselage between knees drill looking solution came up what call Handrills Generally about five drill bits will cover appli cations some stores have set couple dollars Pick up 2-ft length clothes pole lumberyard Cut suitable lengths used 3-in pieces may want try 2 smaller bits possible use drill press next step bits bought drill hole center end length Rough-up shank bit press drilled holes Use thin CyA apply around bit until wood wont absorb anymore Mark Handrills its respective size may want make small stand hold drills Use would screwdriver make holes firewalls engine mounts fuel lines pushrods etc A-in bit perfect drilling holes servo rails No 2 screws wont replace regu lar drill will surprised applications have outset mentioned some ideas stolen originated compliments fine idea Check local hobby shop items mentioned contact following manufacturers Dremel Racine WI 53406 DG Products 209 Carrlands Dr Dayton OH 45429 Robart 310 N 5th St Charles IL 60174 House Balsa 20134 State Rd Cer ritos CA 90701 Merit Abrasive Products 201 W Man ville PO Box 5447 Compton CA 90224 RC SoaringlPruss Continued page 47 month happy provide picture finished product mod el flown two days after picture taken May article Martin reports after satisfactory test flights 22 pounds lead ballast added increase performance brought weight bird up 75 kg thats about 164 pounds bird DG-202 scale three-and-a-half Span five meters fuselage length two meters Airfoils used wing Wortmann sections start FX6l-163 transition FX-140 subsequently changing FX6O-126 stab measures 0164 meters has NACA 0012 section Wing area just under square meter Birds type designed primarily slope flying fully aerobatic contrast Bamerts creation Larry Jolly shows latest designs January1985 141 Engineered sport modeler mind
Edition: Model Aviation - 1985/01
Page Numbers: 40, 41, 140, 141
Radio Technique George M Myers ELECTRIC THINGS Its probably no secret havent shown much interest electric-powered RC models thing Id seen prior Keystone RC Club Electric Fly-In September 22-23 1984 Hatfield PA gave idea electric-motored RC models like rubber-powered Free Flight models initial power burst left out Now know better started good friend Larry Sribnick SR Batteries man coiwinced take break seemingly end less weekend grind proposal-writing Grumman Aerospace Corp favor getting up 500 am take four-hour drive Pennsylvania should mention Larry lives further out Long Island NY lie get up 400 am Larry keeps telling great Electric flying keep saying things like Someday maybe basis Id never seen really large group Electric-powered aircraft weather forecast looked good went time well spent First impressions larger quantity variety models present anticipated Four basic types pres ent 1 Electri&powered Sailplanes 2 Sport models looked flew like 1AA Pylon Racers 3 Scale models looked flew like Jumbo-Scale rubber models 4 Some very-highly-developed specialty models would stand out gathering RC modelers field nicely prepared looked bit small surprisingly large turnout location next long high factory wall seemed have some built-in problems particularly wind chose blow toward away wall didnt chose blow right out sun down long dimension field Clear blue sky Comfortable temperature humidity Fly-In well-organized Keystone RC Club members ran well attended seemed well satisfied specialty models modelers made big impression Dr Keith Shaw physicist University Michigan determines atomic structure molecules measuring scattering laser light notes correct Obviously Dr Shaw believes scientific method applies hobby brought four absolutely gorgeous completely dif ferent models meet highly-developed jewel its own right Pattern model looked somewhat like small Tiporare derived own earlier alcoholpowered Pattern design called Columbia flew just like other Pattern model youve seen quieter also version Leon Shul man Zomby flew like Zomby out late 1940s quieter satisfy Scale enthusiasts Keith pre sented Mk lA Spitfire retracting landing gear no less took off 40 Model Aviation Keith Shaw hooks RC-Assist Old-Timer Zomby charging station four provided Bob Kopskls Spectra foreground Everything see RC ElectrIc Tents background registration transmitter impound Frank Vilioni L sweeps transmitters impound version John Langes RF Wand featured August October 1984 Columns detects transmitters left ON John Smith R kept use frequency clips order Some filers using 53 MHz Ham bandwhere 534 MHz frequency flag BiackIYeiiow looked lot like RC4O YeiiowIBiack flag number boards RC4O mollified situation landed grass field just like Quickee 500 flight aerobatic could ask looked very realistic piece de resistance version Horten B-2 Flying Wing course developing model Dr Shaw friend cut out over 150 bluefoam models just get parame ters right Well got right plane handles beautifully believe claims have clocked 85 mph though speed trap doesnt expect see amphibi ans seaplanes flying off grass field Nelson Whitman Simsbury CT three hydros AA size Several folks went out way tell Nelson created quite stir Brimfield CT Hydro meet year challenged alcohol-burners own turf speak Apparent ly Nelson doesnt give up easily spent some contest time telling history models traces back 1975 thing Im learning Electric afficionados persistent walking about pits talking people put AMA Frequency Committee Chairman hat figuratively asked about problems new RC channels flags SRF radios flags interference problems etc Dan Mitten Ham professional electronics engineering representative spent some time discussing new Ham channels RCOI thru RClO Dan admits has seen some repeater activity 53 MHz band thinks still quieter 508 MHz chunk Most other Hams Ive spoken agree him However before rushing off make some kind change Id advise give band plan some time mature Remember its voluntary some people take get around volunteering None people spoke ever seen SRF radio flag let alone flown Therefore no data subject couple people opined they would probably put channel leave wouldnt need present flags What got some decided change channels didnt know what theyd Interference reports few undefined Most problems sounded like could cured finding out what wrong radio some complaints number-board flags causing tips antennas get bent insist wrapping number-board around antenna cant collapse antenna completely problem can appear other hand make lower tachment can slip over base collapsed antenna Ace RC flag wont did see instance interference meet Larry Sribnicks plane RC4O some distance its con trolling transmitter flew close another transmitter wearing RC38 flag snaprolled Subsequent ground tests showed Larrys system normal ground range away offend ing transmitter no range lots jitters nearby Larrys set just recently back manufacturer RC channel changed set tuned up evidence present looked like clear-cut case interference no measuring tools us could prove unit off frequency much let typical inter ference report unfortunately also becoming common form interContinued page 140 January1985 41 Nelson Whitman L bends task preparing fiest hydroplanes fiight whiie another Eiectric RCer asks him does Larry Sribnick camera-carrying Oiympic 650 powered 05 cobait motor six-ceil battery pack SR EPi 200 course Larry Mr SR Batteries Dr Keith Shaw fast smooth-fiying version WW ii Horten B-2 fiying wing claims its clocked atS5 mph George would love MA construction article ASSOCIAm INC 21668 CLOUD WAY ARD CA 94O45 415-783-4368 1 HinD866D 0 - 4 L IMAA/Bsckman Continued page 137 several modelers came spectators because figured talked-of 1000 airplanes would never get chance fly As mat ter fact heard no complaints score lot people got lot flying done seldom less four big birds air early morn ing until late afternoon real reason going things meet talk people especially true whatever reason dont have plane fly year Evelyn made some new friends renewed some old relationships Chief among latter Bob Iris Morse Santa Clara CA Jerry Martha Rhodes Eagle Pass TX Morses old friends way back Rhodes new friends last year Ida Grove Among years crop acquaintances Lou Proctor have long admired work first meeting Travel aire 2000 real standouts years FFF Two regular features IMAAs extrav aganza Friday evening picnic Saturday night banquet didnt make picnic heard good reports Saturday night fling / delightful food reasonably good speeches reasonably short unhappy note eve ning announcement Les Hard retiring High Flight editor owe Les lot job has done last few years should take chance get express gratitude Below listed vital statistics aircraft photos no means noteworthy models present Time didnt allow get pic tures everything available space doesnt allow print pic tures did take AT-6 George Normington Irvine CA Ziroli kit scale Kioritz 24 Dynathrust 20-10 30 lb covered chrome Mono Kote burnished 3M abrasive pad retracts Bristol Scout Jerry Rhodes Eagle Pass TX STARS plans available MAN scale Quadra original version over 105 hours running time Dynathrust 20-8 21 lb Bronco OV-1OA Nick Rivaldo Wil mington CA scratch-built based manufacturer drawings / scale two 23 Cobras Zinger 20-6 three-bladed props 52 lb two receivers 13 servos working flaps Cobra biplane racer Ralph Knight Riverside CA Santich plans MAN scale Super Tartan Zinger 20-10 23 lb Corsair F4U1D JW Jones Dallas Span 71 Area 612 sq Length 46 Engine 40- 60 Cu Radio 4 channels Weight 5% lbs Material Fiberglass fuse. balsa covered foam wing balsa tail Air Flair Mfg PO Box 11702 Kansas City MO 64138 816J 353-7854 TX Ziroli plans scale Sachs-Dolmar 37 Zinger 22-10 32 lb operating flaps added Ercoupe Erco 415C Dick Skoglund Lancaster CA Messer kit scale OS 108 Zinger 15-6 18 lb Krier Great Lakes Gary Pozzi King City CA plans Larry Scott scale Zenoah 23 18-8 prop 19 lb Mr Mulligan Howard DGA-5 Jack Kilgore Layton UT Nosen kit scale Quadra original version Dynathrust 18-8 21 lb Mustang P-51D Dick Smith Yorba Linda CA Nosen kit scale Kawasaki 315 Zinger 22-10 41 lb mods kit including working flaps Travelalre 2000 Lou Proctor San Diego CA scratch-built based factory drawings scale Tartan Twin Zinger 22-6 21 lb Waco YMF Jim Johnson Oxnard CA scratch-built scale Tecumseh 6 cu homemade 26-8 prop 48 lb Radio TechniquslMyors Continued page 41 ference report need some cheap reli able way separate Out bad systems no matter owns operates No didnt see electric Helicopters meet brings up thought Michael Bock Brooklyn NY called 140 Model Aviation UNDERDOG Factory $7895 Price Astoundingnotminaoie plastics.. Very light weight discriminating hobbiest. Either Pilot version kit.. Sportsman Barnstormer.. arn Good Airmen .. complete See Dealer add . .....Dollar direct order handling6881 MSlaeflS SOd 7% 8166e TaD HOT WIRE FOAM CUTlER ATTENTION ORATON BUILDERS r cutting foam wings ats turtle decks model parts made foom uts over 7 foot wing pan Operates 12 volt motor cycle battery cith Instructions detlar 12439 orotrder BIack Hawk MsnuIscIu, 0368ibolor 08 Fine Mode POdDDN P01ox221 Mt Morris MI 46458 S KY FOX SPORT FLYER Wing Span Wing Area Length Weight Engine Radio SEE YOUR 54 Inches 620 Sq 43 Inches 55 Lbs 40 50 4 Channel DEALER RLA MODELS513866-0105 P 0 BOX 640 WEST CARROLLTON OHIO 45449 Direct Orders Send check money order pay shipping handling Ohio residents add 6% Sales Tax $7495 problemand suggested solu tion problem group formerly all-airplane club has taken interest flying Helicopters want fly club field isnt working out After considering alternate solutions some make sense now looking idea 1 Survey members find out RC channels using purpose 2 Assign Airplane Only Heli copter Only channels club basis according distribution falls now will make sense later Mike leaning toward idea Helicopters should use 72400 Mhz under take over replacement low-band channels released 1987 Airplanes should use RC38 up now forever reas oning airplanes usually fly higher farther away control trans mitters hence likely see destructive interference operating old even-numbered channels Aiso fields area getting smaller fewer number seems likely choppers will replace airplanes ever-increasing percentages number available channels will increase about same rate need increases What think idea Now dont flip back Bob Kopskis feature article get authoritative word what went Hatfield George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY ToolslCostlow Continued page 44 will hold servo amplifier other small printed circuit board can glue spacer between hold wider objects Glue some modified clips short piece 2 4 wood will have stationary mount clips Take clothespin apart reverse spring makes tweezer type clip can also sand nose clothes pin angle will give much closer grip Avoid cheap clothespins have found just arent worth less couple dollars should able get bag 50 good quality clips get very frustrated have drill holes model An electric drill big clumsy usually need hand drill ties up both hands its awk ward hold fuselage between knees drill looking solution came up what call Handrills Generally about five drill bits will cover appli cations some stores have set couple dollars Pick up 2-ft length clothes pole lumberyard Cut suitable lengths used 3-in pieces may want try 2 smaller bits possible use drill press next step bits bought drill hole center end length Rough-up shank bit press drilled holes Use thin CyA apply around bit until wood wont absorb anymore Mark Handrills its respective size may want make small stand hold drills Use would screwdriver make holes firewalls engine mounts fuel lines pushrods etc A-in bit perfect drilling holes servo rails No 2 screws wont replace regu lar drill will surprised applications have outset mentioned some ideas stolen originated compliments fine idea Check local hobby shop items mentioned contact following manufacturers Dremel Racine WI 53406 DG Products 209 Carrlands Dr Dayton OH 45429 Robart 310 N 5th St Charles IL 60174 House Balsa 20134 State Rd Cer ritos CA 90701 Merit Abrasive Products 201 W Man ville PO Box 5447 Compton CA 90224 RC SoaringlPruss Continued page 47 month happy provide picture finished product mod el flown two days after picture taken May article Martin reports after satisfactory test flights 22 pounds lead ballast added increase performance brought weight bird up 75 kg thats about 164 pounds bird DG-202 scale three-and-a-half Span five meters fuselage length two meters Airfoils used wing Wortmann sections start FX6l-163 transition FX-140 subsequently changing FX6O-126 stab measures 0164 meters has NACA 0012 section Wing area just under square meter Birds type designed primarily slope flying fully aerobatic contrast Bamerts creation Larry Jolly shows latest designs January1985 141 Engineered sport modeler mind