RADIO CONTROL ELECTRICS THIS MONTH Ill cover three meet announcements April errata understanding brushless motors controllers prop mount suggestion battery accessories speed control information Fourth Annual Southeastern ElectriFly scheduled Saturday June 4 near Dallas Georgia meet sponsored North Georgia Flying Circus club member Gene Norman wrote nice letter telling about meet will feature Pylon racing Climb Glide slow fast flying competitions plus open flying Attendance has growing rate about 30% per year can add Details available Gene 1031 Pinecrest Drive Forest Park GA 30050-3334 Tel 404 960-0863 call Mike Green 404 386-5016 July 23 1994 date Seventh Annual Northern Connecticut Radio Control Club Electric Fun-Fly meet will offer events 610 612 618 Larry Sribnick John Sermos will discuss offerings Electric community can get full details map friend CD Ron Torrito 1625 Maln St East Hartford CT 06108 Tel 203 528-2227 next meet bit unusual Competition Fun-Fly NationalsShootout Indy 94will held Labor Day weekend September 3-4 Indianapolis Indiana meet normally intended funnylooking short coupled wet-powered all-flap winged flying machines seem turn tight enough chew tails off years meet different however E-power invited participate no special classjust go fly against whatever else there will special award highest-placing Electric meet heres opportunity show Electric stuff make stik understanding events Fun-Fly designs usually take less 30 seconds execute means can use rather light battery installation Also aircraft] engine/motor rules unlimited AMA Safety Code prevailing Example wet Fun-Fly designs have successfully converted E-power include Stickit IV Stickit V Ive seen number such conversions fly KRC over years image comes mind quiet gyration can get detailed meet information Azarr 1750 Lundgren Rd New Carlisle OH 45344 Tel 513 849-0411 April column contained small error discussion SCRC cell page 94 passed along some information reader Martin Bamert regarding small measurable differences individual SCRC cell weights between good good cells reported numbers 54 52 grams should have read 56 54 grams respectively June column contained descriptions some forthcoming new controllers brushless motors comments ordinary speed controls cannot used motors Sometimes readers have difficulty understanding accepting last point Ive included photo shows Aveox motor/controller pair familiar conventional speed controls will July1994 77 Aveox brushless motor/controller eight wires Copper interconnecter bars B & T Note performance data interconnecting two Text has technical detailslabel SCRC cell B & Ts address text Drywall sandpaper can cut scissors prop washers toAs seen KRC 93 Kirk Masseys custom lightened cooled prevent prop spinner slippageAstro 05GNew Creations RC Box 496 Willis TX 77378 immediately notice obvious brushless motor control has wires going motor fact ordinary speed control has two motor wires brushless control has eight course both control types have two additional wires going arming switch battery three-wire cable connect receiver What extra brushless motor wires three heavier wires Sermos connectors power wires go windings motor driven MOSFETS control electronics Instead plus minus wires connected brushes conventional motors three carry three-phase drive brushless motor windings windings part housing assembly physically rotate conventional motors permanent cobalt magnets reside rotating armature also unlike conventional motors Brushless motors use electromcally-clocked timed three-phase electrical drive motor windings Think operation three timed after other pulse excitations three physically progressive windings results revolving magnetic field inside motor housing drags cobalt armature magnets along causing physical rotation five light-gauge wires visible photo connect Hall magnetic sensors motor pick up signal information feed back controller electronics sensor signals keep power drive pulses running properly ie keep physical motor operation electronic operation sync Speed controlled varying nature power pulse drive windings accordance throttle-stick movement transmitter Conventional motors can reversed direction reversing plus minus wires brushes maybe adjusting motor timing go along reversal Brushless motors can reversed electronic reversal controller Aveox controller uses jumper magnetic sensors electronics always keep timing running properly theres no equivalent brush angle adjustment case Given above doubting reader should thoroughly convinced must use brushless motor controller brushiess motors What gets seeming complexity simply no brushes means no brush resistance higher efficiency no brush drag much lower current lower power levels no brush commutator wear no brush sparking electrical noise no brush angle adjust no brush protrusions motor case no brush capacitors no brush dustthat insidious black powder gets over everything stays Brush dust Electric fliers equivalent wet goo its just theres much less Wet engines typically have nice feature thats usually duplicated Electric motors knurled prop drive prevents props spinners slipping prop nut tightened Electric prop adapters have smooth-faced surface often its Kirk Massey custom tandem Astro 25 Write Kirk very difficult tighten upon prop New Creations catalogor prop/spinner combination 78 Model Aviation 4YES THE TWIN-AIR 20 IS HERE AT LAST YES THE TWIN-AIR 20 REALLY CAN BE CONTROLLED ON JUST ONE ENGINE YES THE TWIN-AIR 20 OFFERS THE SAME HIGH QUALITY PERFOR MANCE EASE OF FINING AND HANDLING AEROBAliC CAPABIU TIES FUN TO BUILD AND FUN TO FLY FEATURES FOUND IN ALL NORTHEAST AERODYNAMIC KITS THE TRAIN-AIRS BEL-AIRS AND SPORT AIR YES ITS FROM . NORTHEAST AERODYNAMICS INC 4 NORTHEA ST AERODYNAMICS INC 150 ROBINSON ROAD ON NH 03051 881-5899 Specifications Engine Requirement -Two 20-30 Wing Span 58 Wing Area 625 Sq 434 Sq Fuselage Length 43 Fuselage Width 35 Overall Weight Range 55 65 pounds Wing Loading Range 195 239 Sq Ft Radio Functions 4 Channel Ask local hobby shop order direct Better engine protection rust protection Higher performance Rirnn nffRrc full/inn nf fun/s ranoino 0% uws boats ducted fans fixed wing rotaly wing theres Byron Fuel blended specifically needs including three premium Byron RACE car fuels Get fueling confidence Get Byron Fuel fuel champions BYRON ORIGINALS because everything wants slip smooth surface theres no bite Ive found simple washer cut drywall sandpaper corrects problem drywall sandpaper looks like window screen its really gritty material sands both sides stuff have labeled 220 gritjust like conventional sandpaper material makes effective nonslip washers can placed between prop adapter face prop spinner made several washers first cutting center hole sized fit prop shaft easily done sharpened piece brass tubing cut outer circumference washer old scissors recommend using good tools Obviously almost size washer can made various prop adapters pennies can make lifetime supply washers single sheet sanding material youve plagued prop slipitus give try let know works March column included description attractively priced tested characterized SCRC cells available B & T RC Products 2905 Guess Rd Suite 1 Durham NC 27705 Tel 919 471-2060 understand have taken advantage supply opportunity Ive learned some other useful B & T goodies including some preformed metal straps relatively thick highly conductive copper material can easily soldered make cell-to-cell interconnections photos shows what look like soldered cell illustrate use addition copper interconnects also got some large clear heat-shrink tubing cover cells/packs So youre inclined roll own packs get touch folks excellent products service very reasonable prices gentleman talk Billy Russell has lots RC car background now getting some familiarity aeromodeling crowd well Before leave area note label SCRC cell Its electrical test performance record particular B & T cell youll find cells given pack have closely matching information labels information listed includes initial final run voltages minutes 20-amps dram time cell resistance etc think its fair thank RC car crowd driving battery technology degree beneficiaries quest higher levels performance April column advised several new microprocessor-controlled speed controls try out Id have report coming up later year would happen after opportunity try em bench well airthe latter having wait until winter passed Given brutality winter its clear Champion Model Products 880 Carmen Court LaVerne CA 91750 909 599-3348 July1994 79 ock Byron Fuel contact us direct Grove IA 51445 364-3165 Seven models available weigh both gins & ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $29250 Includes AC adaptor UPS 1 yr warrantee N Rechargeable Nickel Metal Hydride Batteries New HydriMax batteriesthe first nickel metal hydride NiMH cells packs available R/C usesafely power full day flying charge youve enjoyed convenience using new NiMH-powered laptop computers imagine freedom youll have HydriMax batteries sophisticated transmitters other R/fD gear. HydriMax NiMH batteries double rated capacity ordinary Tx Rx packswithout requiring room bigger cells can provide tests have proven see chart DOUBLE safe flight/run time supply greater capacity adding weightideal radio other low medium current applications M cells provide 1200 mAh capacityA cells provide 125 TYPICAL DISCHARGE CURVE COMPARISONA NickeICadnion oR NickelHydide 1800 mAh capacity can charge HydriMax batterieslIT 2 times standard radio NiCd chargers useflying time expanded scale voltmeter measure NMH Ullage Unlike NiGds present no disposal problemsNiMH batteries environmentally safe Choose full range assembled packs tabbed untabbed cells free brochure1234 0 67 8 9 10 Ii 12 location dealer nearest please*TIME HOURS call 1-800-682-8948 ext 043AYR82Eo2o0oo40RngO8VLA90FP109P 2 Ii\IE 8 DRInbotod ERolosively Thoogh GREAT PLANES MODEL OISTRIeUTO8S COMPANY P08069021 Chanpogn IL 618289021 I-4J WARIIA WK SPECIFICATIONS WING SPA N 60 ENGINE SIZE60 2-S7ROKE WEIGHT74 LBS $17000 ALL KITS FEATURE HAND LAID FIBERGL4SS FUSEIAGEPANEL UNES & SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULAJIEADS SEE YOUR LOCAL DEALJZ OR CALL HOBBY IL4NGAR 61M-283-5 746 FOR IMA4EDIA7E DElIVERY DE4LER INQUIRIFS WFLCOME WEACCEPT VIS4 MAEIRCARD & DISCOVER CARDS WEGLADLYSHIP C GD SHIPPING& IIANDUNG$SW PER KIT COPflYNENTAL U&4 OilIER AREAS CALL KEN7VCKYRFSIDEJeI ADD 6% SALES TAX HOBBY HANGAR ISA FULL SER VICE HOBBY SHOP WITH OVER 11600 ITEMS IN STOCI4 CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HQAR EXCLUSIVE DISTRIBUTOR OF FIBER SCALE MODELS 153 LLOYD AVE FLORENCE KY 41042 606-283-5746 PHONE 606-282-4666 FAX ALSO AVAILABLE Focke WuIf 190 $18500 P-47 Thunderbolt $17000 Cessna 150 $17000 Giant Scale Me-i 09 $37500 its ever going end As write early March under much ice snow have done quite bit bench-running Ive built some dedicated test accessories help compare finer points new products Ive also talking some manufacturers other evaluators Whats come out knowledge some newest controls already design revision means some what Im working already becoming obsolete make speed controls zealous lot Electric modelers themselves very friendly very driven never seem content continue improve products partly caused feedback manufacturers manufacturer will often supply samples columnists other Electric modelers Its good way manufacturers get lots field testing under varied conditions example just finding out design works different radios valuable piece information can tell features todays products outcome field testing us have caused product revisions can require much work sometimes have accident because So effort part Its just part total E-modeling fun very rewarding help advance product designeven small way also gives opportunity share new product information experience Inherent process however policy maintaining separation certain proprietary private information learn stays individual supplier Im saying because sometimes readers press bit now know times have little say some matters September 1993 column commented .got some speed control design ideas own try out. statement part discussion RE VOLT Electric designed specifically easily try things out air brief comment stuck readers Im getting inquiries about what meant have some ideas try fact finally began miniproject few weeks ago am getting speed control business What Im pursuing simply fun thing trying some own electronics Electrics possible out might come uaique maybe dramatic speed control operational concept something Im aware having done before Im prepared detail point Only other person aware what Im doing hes expressing some enthusiasm combined some doubt Well see can safely bet however results something worthwhile Ill share column So ends another column Please include SASE inquiry youd like reply Happy summertime Electric landings odel Aviation Double flight time charge adding weight II
Edition: Model Aviation - 1994/07
Page Numbers: 77, 78, 79, 80
RADIO CONTROL ELECTRICS THIS MONTH Ill cover three meet announcements April errata understanding brushless motors controllers prop mount suggestion battery accessories speed control information Fourth Annual Southeastern ElectriFly scheduled Saturday June 4 near Dallas Georgia meet sponsored North Georgia Flying Circus club member Gene Norman wrote nice letter telling about meet will feature Pylon racing Climb Glide slow fast flying competitions plus open flying Attendance has growing rate about 30% per year can add Details available Gene 1031 Pinecrest Drive Forest Park GA 30050-3334 Tel 404 960-0863 call Mike Green 404 386-5016 July 23 1994 date Seventh Annual Northern Connecticut Radio Control Club Electric Fun-Fly meet will offer events 610 612 618 Larry Sribnick John Sermos will discuss offerings Electric community can get full details map friend CD Ron Torrito 1625 Maln St East Hartford CT 06108 Tel 203 528-2227 next meet bit unusual Competition Fun-Fly NationalsShootout Indy 94will held Labor Day weekend September 3-4 Indianapolis Indiana meet normally intended funnylooking short coupled wet-powered all-flap winged flying machines seem turn tight enough chew tails off years meet different however E-power invited participate no special classjust go fly against whatever else there will special award highest-placing Electric meet heres opportunity show Electric stuff make stik understanding events Fun-Fly designs usually take less 30 seconds execute means can use rather light battery installation Also aircraft] engine/motor rules unlimited AMA Safety Code prevailing Example wet Fun-Fly designs have successfully converted E-power include Stickit IV Stickit V Ive seen number such conversions fly KRC over years image comes mind quiet gyration can get detailed meet information Azarr 1750 Lundgren Rd New Carlisle OH 45344 Tel 513 849-0411 April column contained small error discussion SCRC cell page 94 passed along some information reader Martin Bamert regarding small measurable differences individual SCRC cell weights between good good cells reported numbers 54 52 grams should have read 56 54 grams respectively June column contained descriptions some forthcoming new controllers brushless motors comments ordinary speed controls cannot used motors Sometimes readers have difficulty understanding accepting last point Ive included photo shows Aveox motor/controller pair familiar conventional speed controls will July1994 77 Aveox brushless motor/controller eight wires Copper interconnecter bars B & T Note performance data interconnecting two Text has technical detailslabel SCRC cell B & Ts address text Drywall sandpaper can cut scissors prop washers toAs seen KRC 93 Kirk Masseys custom lightened cooled prevent prop spinner slippageAstro 05GNew Creations RC Box 496 Willis TX 77378 immediately notice obvious brushless motor control has wires going motor fact ordinary speed control has two motor wires brushless control has eight course both control types have two additional wires going arming switch battery three-wire cable connect receiver What extra brushless motor wires three heavier wires Sermos connectors power wires go windings motor driven MOSFETS control electronics Instead plus minus wires connected brushes conventional motors three carry three-phase drive brushless motor windings windings part housing assembly physically rotate conventional motors permanent cobalt magnets reside rotating armature also unlike conventional motors Brushless motors use electromcally-clocked timed three-phase electrical drive motor windings Think operation three timed after other pulse excitations three physically progressive windings results revolving magnetic field inside motor housing drags cobalt armature magnets along causing physical rotation five light-gauge wires visible photo connect Hall magnetic sensors motor pick up signal information feed back controller electronics sensor signals keep power drive pulses running properly ie keep physical motor operation electronic operation sync Speed controlled varying nature power pulse drive windings accordance throttle-stick movement transmitter Conventional motors can reversed direction reversing plus minus wires brushes maybe adjusting motor timing go along reversal Brushless motors can reversed electronic reversal controller Aveox controller uses jumper magnetic sensors electronics always keep timing running properly theres no equivalent brush angle adjustment case Given above doubting reader should thoroughly convinced must use brushless motor controller brushiess motors What gets seeming complexity simply no brushes means no brush resistance higher efficiency no brush drag much lower current lower power levels no brush commutator wear no brush sparking electrical noise no brush angle adjust no brush protrusions motor case no brush capacitors no brush dustthat insidious black powder gets over everything stays Brush dust Electric fliers equivalent wet goo its just theres much less Wet engines typically have nice feature thats usually duplicated Electric motors knurled prop drive prevents props spinners slipping prop nut tightened Electric prop adapters have smooth-faced surface often its Kirk Massey custom tandem Astro 25 Write Kirk very difficult tighten upon prop New Creations catalogor prop/spinner combination 78 Model Aviation 4YES THE TWIN-AIR 20 IS HERE AT LAST YES THE TWIN-AIR 20 REALLY CAN BE CONTROLLED ON JUST ONE ENGINE YES THE TWIN-AIR 20 OFFERS THE SAME HIGH QUALITY PERFOR MANCE EASE OF FINING AND HANDLING AEROBAliC CAPABIU TIES FUN TO BUILD AND FUN TO FLY FEATURES FOUND IN ALL NORTHEAST AERODYNAMIC KITS THE TRAIN-AIRS BEL-AIRS AND SPORT AIR YES ITS FROM . NORTHEAST AERODYNAMICS INC 4 NORTHEA ST AERODYNAMICS INC 150 ROBINSON ROAD ON NH 03051 881-5899 Specifications Engine Requirement -Two 20-30 Wing Span 58 Wing Area 625 Sq 434 Sq Fuselage Length 43 Fuselage Width 35 Overall Weight Range 55 65 pounds Wing Loading Range 195 239 Sq Ft Radio Functions 4 Channel Ask local hobby shop order direct Better engine protection rust protection Higher performance Rirnn nffRrc full/inn nf fun/s ranoino 0% uws boats ducted fans fixed wing rotaly wing theres Byron Fuel blended specifically needs including three premium Byron RACE car fuels Get fueling confidence Get Byron Fuel fuel champions BYRON ORIGINALS because everything wants slip smooth surface theres no bite Ive found simple washer cut drywall sandpaper corrects problem drywall sandpaper looks like window screen its really gritty material sands both sides stuff have labeled 220 gritjust like conventional sandpaper material makes effective nonslip washers can placed between prop adapter face prop spinner made several washers first cutting center hole sized fit prop shaft easily done sharpened piece brass tubing cut outer circumference washer old scissors recommend using good tools Obviously almost size washer can made various prop adapters pennies can make lifetime supply washers single sheet sanding material youve plagued prop slipitus give try let know works March column included description attractively priced tested characterized SCRC cells available B & T RC Products 2905 Guess Rd Suite 1 Durham NC 27705 Tel 919 471-2060 understand have taken advantage supply opportunity Ive learned some other useful B & T goodies including some preformed metal straps relatively thick highly conductive copper material can easily soldered make cell-to-cell interconnections photos shows what look like soldered cell illustrate use addition copper interconnects also got some large clear heat-shrink tubing cover cells/packs So youre inclined roll own packs get touch folks excellent products service very reasonable prices gentleman talk Billy Russell has lots RC car background now getting some familiarity aeromodeling crowd well Before leave area note label SCRC cell Its electrical test performance record particular B & T cell youll find cells given pack have closely matching information labels information listed includes initial final run voltages minutes 20-amps dram time cell resistance etc think its fair thank RC car crowd driving battery technology degree beneficiaries quest higher levels performance April column advised several new microprocessor-controlled speed controls try out Id have report coming up later year would happen after opportunity try em bench well airthe latter having wait until winter passed Given brutality winter its clear Champion Model Products 880 Carmen Court LaVerne CA 91750 909 599-3348 July1994 79 ock Byron Fuel contact us direct Grove IA 51445 364-3165 Seven models available weigh both gins & ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $29250 Includes AC adaptor UPS 1 yr warrantee N Rechargeable Nickel Metal Hydride Batteries New HydriMax batteriesthe first nickel metal hydride NiMH cells packs available R/C usesafely power full day flying charge youve enjoyed convenience using new NiMH-powered laptop computers imagine freedom youll have HydriMax batteries sophisticated transmitters other R/fD gear. HydriMax NiMH batteries double rated capacity ordinary Tx Rx packswithout requiring room bigger cells can provide tests have proven see chart DOUBLE safe flight/run time supply greater capacity adding weightideal radio other low medium current applications M cells provide 1200 mAh capacityA cells provide 125 TYPICAL DISCHARGE CURVE COMPARISONA NickeICadnion oR NickelHydide 1800 mAh capacity can charge HydriMax batterieslIT 2 times standard radio NiCd chargers useflying time expanded scale voltmeter measure NMH Ullage Unlike NiGds present no disposal problemsNiMH batteries environmentally safe Choose full range assembled packs tabbed untabbed cells free brochure1234 0 67 8 9 10 Ii 12 location dealer nearest please*TIME HOURS call 1-800-682-8948 ext 043AYR82Eo2o0oo40RngO8VLA90FP109P 2 Ii\IE 8 DRInbotod ERolosively Thoogh GREAT PLANES MODEL OISTRIeUTO8S COMPANY P08069021 Chanpogn IL 618289021 I-4J WARIIA WK SPECIFICATIONS WING SPA N 60 ENGINE SIZE60 2-S7ROKE WEIGHT74 LBS $17000 ALL KITS FEATURE HAND LAID FIBERGL4SS FUSEIAGEPANEL UNES & SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULAJIEADS SEE YOUR LOCAL DEALJZ OR CALL HOBBY IL4NGAR 61M-283-5 746 FOR IMA4EDIA7E DElIVERY DE4LER INQUIRIFS WFLCOME WEACCEPT VIS4 MAEIRCARD & DISCOVER CARDS WEGLADLYSHIP C GD SHIPPING& IIANDUNG$SW PER KIT COPflYNENTAL U&4 OilIER AREAS CALL KEN7VCKYRFSIDEJeI ADD 6% SALES TAX HOBBY HANGAR ISA FULL SER VICE HOBBY SHOP WITH OVER 11600 ITEMS IN STOCI4 CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HQAR EXCLUSIVE DISTRIBUTOR OF FIBER SCALE MODELS 153 LLOYD AVE FLORENCE KY 41042 606-283-5746 PHONE 606-282-4666 FAX ALSO AVAILABLE Focke WuIf 190 $18500 P-47 Thunderbolt $17000 Cessna 150 $17000 Giant Scale Me-i 09 $37500 its ever going end As write early March under much ice snow have done quite bit bench-running Ive built some dedicated test accessories help compare finer points new products Ive also talking some manufacturers other evaluators Whats come out knowledge some newest controls already design revision means some what Im working already becoming obsolete make speed controls zealous lot Electric modelers themselves very friendly very driven never seem content continue improve products partly caused feedback manufacturers manufacturer will often supply samples columnists other Electric modelers Its good way manufacturers get lots field testing under varied conditions example just finding out design works different radios valuable piece information can tell features todays products outcome field testing us have caused product revisions can require much work sometimes have accident because So effort part Its just part total E-modeling fun very rewarding help advance product designeven small way also gives opportunity share new product information experience Inherent process however policy maintaining separation certain proprietary private information learn stays individual supplier Im saying because sometimes readers press bit now know times have little say some matters September 1993 column commented .got some speed control design ideas own try out. statement part discussion RE VOLT Electric designed specifically easily try things out air brief comment stuck readers Im getting inquiries about what meant have some ideas try fact finally began miniproject few weeks ago am getting speed control business What Im pursuing simply fun thing trying some own electronics Electrics possible out might come uaique maybe dramatic speed control operational concept something Im aware having done before Im prepared detail point Only other person aware what Im doing hes expressing some enthusiasm combined some doubt Well see can safely bet however results something worthwhile Ill share column So ends another column Please include SASE inquiry youd like reply Happy summertime Electric landings odel Aviation Double flight time charge adding weight II
Edition: Model Aviation - 1994/07
Page Numbers: 77, 78, 79, 80
RADIO CONTROL ELECTRICS THIS MONTH Ill cover three meet announcements April errata understanding brushless motors controllers prop mount suggestion battery accessories speed control information Fourth Annual Southeastern ElectriFly scheduled Saturday June 4 near Dallas Georgia meet sponsored North Georgia Flying Circus club member Gene Norman wrote nice letter telling about meet will feature Pylon racing Climb Glide slow fast flying competitions plus open flying Attendance has growing rate about 30% per year can add Details available Gene 1031 Pinecrest Drive Forest Park GA 30050-3334 Tel 404 960-0863 call Mike Green 404 386-5016 July 23 1994 date Seventh Annual Northern Connecticut Radio Control Club Electric Fun-Fly meet will offer events 610 612 618 Larry Sribnick John Sermos will discuss offerings Electric community can get full details map friend CD Ron Torrito 1625 Maln St East Hartford CT 06108 Tel 203 528-2227 next meet bit unusual Competition Fun-Fly NationalsShootout Indy 94will held Labor Day weekend September 3-4 Indianapolis Indiana meet normally intended funnylooking short coupled wet-powered all-flap winged flying machines seem turn tight enough chew tails off years meet different however E-power invited participate no special classjust go fly against whatever else there will special award highest-placing Electric meet heres opportunity show Electric stuff make stik understanding events Fun-Fly designs usually take less 30 seconds execute means can use rather light battery installation Also aircraft] engine/motor rules unlimited AMA Safety Code prevailing Example wet Fun-Fly designs have successfully converted E-power include Stickit IV Stickit V Ive seen number such conversions fly KRC over years image comes mind quiet gyration can get detailed meet information Azarr 1750 Lundgren Rd New Carlisle OH 45344 Tel 513 849-0411 April column contained small error discussion SCRC cell page 94 passed along some information reader Martin Bamert regarding small measurable differences individual SCRC cell weights between good good cells reported numbers 54 52 grams should have read 56 54 grams respectively June column contained descriptions some forthcoming new controllers brushless motors comments ordinary speed controls cannot used motors Sometimes readers have difficulty understanding accepting last point Ive included photo shows Aveox motor/controller pair familiar conventional speed controls will July1994 77 Aveox brushless motor/controller eight wires Copper interconnecter bars B & T Note performance data interconnecting two Text has technical detailslabel SCRC cell B & Ts address text Drywall sandpaper can cut scissors prop washers toAs seen KRC 93 Kirk Masseys custom lightened cooled prevent prop spinner slippageAstro 05GNew Creations RC Box 496 Willis TX 77378 immediately notice obvious brushless motor control has wires going motor fact ordinary speed control has two motor wires brushless control has eight course both control types have two additional wires going arming switch battery three-wire cable connect receiver What extra brushless motor wires three heavier wires Sermos connectors power wires go windings motor driven MOSFETS control electronics Instead plus minus wires connected brushes conventional motors three carry three-phase drive brushless motor windings windings part housing assembly physically rotate conventional motors permanent cobalt magnets reside rotating armature also unlike conventional motors Brushless motors use electromcally-clocked timed three-phase electrical drive motor windings Think operation three timed after other pulse excitations three physically progressive windings results revolving magnetic field inside motor housing drags cobalt armature magnets along causing physical rotation five light-gauge wires visible photo connect Hall magnetic sensors motor pick up signal information feed back controller electronics sensor signals keep power drive pulses running properly ie keep physical motor operation electronic operation sync Speed controlled varying nature power pulse drive windings accordance throttle-stick movement transmitter Conventional motors can reversed direction reversing plus minus wires brushes maybe adjusting motor timing go along reversal Brushless motors can reversed electronic reversal controller Aveox controller uses jumper magnetic sensors electronics always keep timing running properly theres no equivalent brush angle adjustment case Given above doubting reader should thoroughly convinced must use brushless motor controller brushiess motors What gets seeming complexity simply no brushes means no brush resistance higher efficiency no brush drag much lower current lower power levels no brush commutator wear no brush sparking electrical noise no brush angle adjust no brush protrusions motor case no brush capacitors no brush dustthat insidious black powder gets over everything stays Brush dust Electric fliers equivalent wet goo its just theres much less Wet engines typically have nice feature thats usually duplicated Electric motors knurled prop drive prevents props spinners slipping prop nut tightened Electric prop adapters have smooth-faced surface often its Kirk Massey custom tandem Astro 25 Write Kirk very difficult tighten upon prop New Creations catalogor prop/spinner combination 78 Model Aviation 4YES THE TWIN-AIR 20 IS HERE AT LAST YES THE TWIN-AIR 20 REALLY CAN BE CONTROLLED ON JUST ONE ENGINE YES THE TWIN-AIR 20 OFFERS THE SAME HIGH QUALITY PERFOR MANCE EASE OF FINING AND HANDLING AEROBAliC CAPABIU TIES FUN TO BUILD AND FUN TO FLY FEATURES FOUND IN ALL NORTHEAST AERODYNAMIC KITS THE TRAIN-AIRS BEL-AIRS AND SPORT AIR YES ITS FROM . NORTHEAST AERODYNAMICS INC 4 NORTHEA ST AERODYNAMICS INC 150 ROBINSON ROAD ON NH 03051 881-5899 Specifications Engine Requirement -Two 20-30 Wing Span 58 Wing Area 625 Sq 434 Sq Fuselage Length 43 Fuselage Width 35 Overall Weight Range 55 65 pounds Wing Loading Range 195 239 Sq Ft Radio Functions 4 Channel Ask local hobby shop order direct Better engine protection rust protection Higher performance Rirnn nffRrc full/inn nf fun/s ranoino 0% uws boats ducted fans fixed wing rotaly wing theres Byron Fuel blended specifically needs including three premium Byron RACE car fuels Get fueling confidence Get Byron Fuel fuel champions BYRON ORIGINALS because everything wants slip smooth surface theres no bite Ive found simple washer cut drywall sandpaper corrects problem drywall sandpaper looks like window screen its really gritty material sands both sides stuff have labeled 220 gritjust like conventional sandpaper material makes effective nonslip washers can placed between prop adapter face prop spinner made several washers first cutting center hole sized fit prop shaft easily done sharpened piece brass tubing cut outer circumference washer old scissors recommend using good tools Obviously almost size washer can made various prop adapters pennies can make lifetime supply washers single sheet sanding material youve plagued prop slipitus give try let know works March column included description attractively priced tested characterized SCRC cells available B & T RC Products 2905 Guess Rd Suite 1 Durham NC 27705 Tel 919 471-2060 understand have taken advantage supply opportunity Ive learned some other useful B & T goodies including some preformed metal straps relatively thick highly conductive copper material can easily soldered make cell-to-cell interconnections photos shows what look like soldered cell illustrate use addition copper interconnects also got some large clear heat-shrink tubing cover cells/packs So youre inclined roll own packs get touch folks excellent products service very reasonable prices gentleman talk Billy Russell has lots RC car background now getting some familiarity aeromodeling crowd well Before leave area note label SCRC cell Its electrical test performance record particular B & T cell youll find cells given pack have closely matching information labels information listed includes initial final run voltages minutes 20-amps dram time cell resistance etc think its fair thank RC car crowd driving battery technology degree beneficiaries quest higher levels performance April column advised several new microprocessor-controlled speed controls try out Id have report coming up later year would happen after opportunity try em bench well airthe latter having wait until winter passed Given brutality winter its clear Champion Model Products 880 Carmen Court LaVerne CA 91750 909 599-3348 July1994 79 ock Byron Fuel contact us direct Grove IA 51445 364-3165 Seven models available weigh both gins & ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $29250 Includes AC adaptor UPS 1 yr warrantee N Rechargeable Nickel Metal Hydride Batteries New HydriMax batteriesthe first nickel metal hydride NiMH cells packs available R/C usesafely power full day flying charge youve enjoyed convenience using new NiMH-powered laptop computers imagine freedom youll have HydriMax batteries sophisticated transmitters other R/fD gear. HydriMax NiMH batteries double rated capacity ordinary Tx Rx packswithout requiring room bigger cells can provide tests have proven see chart DOUBLE safe flight/run time supply greater capacity adding weightideal radio other low medium current applications M cells provide 1200 mAh capacityA cells provide 125 TYPICAL DISCHARGE CURVE COMPARISONA NickeICadnion oR NickelHydide 1800 mAh capacity can charge HydriMax batterieslIT 2 times standard radio NiCd chargers useflying time expanded scale voltmeter measure NMH Ullage Unlike NiGds present no disposal problemsNiMH batteries environmentally safe Choose full range assembled packs tabbed untabbed cells free brochure1234 0 67 8 9 10 Ii 12 location dealer nearest please*TIME HOURS call 1-800-682-8948 ext 043AYR82Eo2o0oo40RngO8VLA90FP109P 2 Ii\IE 8 DRInbotod ERolosively Thoogh GREAT PLANES MODEL OISTRIeUTO8S COMPANY P08069021 Chanpogn IL 618289021 I-4J WARIIA WK SPECIFICATIONS WING SPA N 60 ENGINE SIZE60 2-S7ROKE WEIGHT74 LBS $17000 ALL KITS FEATURE HAND LAID FIBERGL4SS FUSEIAGEPANEL UNES & SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULAJIEADS SEE YOUR LOCAL DEALJZ OR CALL HOBBY IL4NGAR 61M-283-5 746 FOR IMA4EDIA7E DElIVERY DE4LER INQUIRIFS WFLCOME WEACCEPT VIS4 MAEIRCARD & DISCOVER CARDS WEGLADLYSHIP C GD SHIPPING& IIANDUNG$SW PER KIT COPflYNENTAL U&4 OilIER AREAS CALL KEN7VCKYRFSIDEJeI ADD 6% SALES TAX HOBBY HANGAR ISA FULL SER VICE HOBBY SHOP WITH OVER 11600 ITEMS IN STOCI4 CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HQAR EXCLUSIVE DISTRIBUTOR OF FIBER SCALE MODELS 153 LLOYD AVE FLORENCE KY 41042 606-283-5746 PHONE 606-282-4666 FAX ALSO AVAILABLE Focke WuIf 190 $18500 P-47 Thunderbolt $17000 Cessna 150 $17000 Giant Scale Me-i 09 $37500 its ever going end As write early March under much ice snow have done quite bit bench-running Ive built some dedicated test accessories help compare finer points new products Ive also talking some manufacturers other evaluators Whats come out knowledge some newest controls already design revision means some what Im working already becoming obsolete make speed controls zealous lot Electric modelers themselves very friendly very driven never seem content continue improve products partly caused feedback manufacturers manufacturer will often supply samples columnists other Electric modelers Its good way manufacturers get lots field testing under varied conditions example just finding out design works different radios valuable piece information can tell features todays products outcome field testing us have caused product revisions can require much work sometimes have accident because So effort part Its just part total E-modeling fun very rewarding help advance product designeven small way also gives opportunity share new product information experience Inherent process however policy maintaining separation certain proprietary private information learn stays individual supplier Im saying because sometimes readers press bit now know times have little say some matters September 1993 column commented .got some speed control design ideas own try out. statement part discussion RE VOLT Electric designed specifically easily try things out air brief comment stuck readers Im getting inquiries about what meant have some ideas try fact finally began miniproject few weeks ago am getting speed control business What Im pursuing simply fun thing trying some own electronics Electrics possible out might come uaique maybe dramatic speed control operational concept something Im aware having done before Im prepared detail point Only other person aware what Im doing hes expressing some enthusiasm combined some doubt Well see can safely bet however results something worthwhile Ill share column So ends another column Please include SASE inquiry youd like reply Happy summertime Electric landings odel Aviation Double flight time charge adding weight II
Edition: Model Aviation - 1994/07
Page Numbers: 77, 78, 79, 80
RADIO CONTROL ELECTRICS THIS MONTH Ill cover three meet announcements April errata understanding brushless motors controllers prop mount suggestion battery accessories speed control information Fourth Annual Southeastern ElectriFly scheduled Saturday June 4 near Dallas Georgia meet sponsored North Georgia Flying Circus club member Gene Norman wrote nice letter telling about meet will feature Pylon racing Climb Glide slow fast flying competitions plus open flying Attendance has growing rate about 30% per year can add Details available Gene 1031 Pinecrest Drive Forest Park GA 30050-3334 Tel 404 960-0863 call Mike Green 404 386-5016 July 23 1994 date Seventh Annual Northern Connecticut Radio Control Club Electric Fun-Fly meet will offer events 610 612 618 Larry Sribnick John Sermos will discuss offerings Electric community can get full details map friend CD Ron Torrito 1625 Maln St East Hartford CT 06108 Tel 203 528-2227 next meet bit unusual Competition Fun-Fly NationalsShootout Indy 94will held Labor Day weekend September 3-4 Indianapolis Indiana meet normally intended funnylooking short coupled wet-powered all-flap winged flying machines seem turn tight enough chew tails off years meet different however E-power invited participate no special classjust go fly against whatever else there will special award highest-placing Electric meet heres opportunity show Electric stuff make stik understanding events Fun-Fly designs usually take less 30 seconds execute means can use rather light battery installation Also aircraft] engine/motor rules unlimited AMA Safety Code prevailing Example wet Fun-Fly designs have successfully converted E-power include Stickit IV Stickit V Ive seen number such conversions fly KRC over years image comes mind quiet gyration can get detailed meet information Azarr 1750 Lundgren Rd New Carlisle OH 45344 Tel 513 849-0411 April column contained small error discussion SCRC cell page 94 passed along some information reader Martin Bamert regarding small measurable differences individual SCRC cell weights between good good cells reported numbers 54 52 grams should have read 56 54 grams respectively June column contained descriptions some forthcoming new controllers brushless motors comments ordinary speed controls cannot used motors Sometimes readers have difficulty understanding accepting last point Ive included photo shows Aveox motor/controller pair familiar conventional speed controls will July1994 77 Aveox brushless motor/controller eight wires Copper interconnecter bars B & T Note performance data interconnecting two Text has technical detailslabel SCRC cell B & Ts address text Drywall sandpaper can cut scissors prop washers toAs seen KRC 93 Kirk Masseys custom lightened cooled prevent prop spinner slippageAstro 05GNew Creations RC Box 496 Willis TX 77378 immediately notice obvious brushless motor control has wires going motor fact ordinary speed control has two motor wires brushless control has eight course both control types have two additional wires going arming switch battery three-wire cable connect receiver What extra brushless motor wires three heavier wires Sermos connectors power wires go windings motor driven MOSFETS control electronics Instead plus minus wires connected brushes conventional motors three carry three-phase drive brushless motor windings windings part housing assembly physically rotate conventional motors permanent cobalt magnets reside rotating armature also unlike conventional motors Brushless motors use electromcally-clocked timed three-phase electrical drive motor windings Think operation three timed after other pulse excitations three physically progressive windings results revolving magnetic field inside motor housing drags cobalt armature magnets along causing physical rotation five light-gauge wires visible photo connect Hall magnetic sensors motor pick up signal information feed back controller electronics sensor signals keep power drive pulses running properly ie keep physical motor operation electronic operation sync Speed controlled varying nature power pulse drive windings accordance throttle-stick movement transmitter Conventional motors can reversed direction reversing plus minus wires brushes maybe adjusting motor timing go along reversal Brushless motors can reversed electronic reversal controller Aveox controller uses jumper magnetic sensors electronics always keep timing running properly theres no equivalent brush angle adjustment case Given above doubting reader should thoroughly convinced must use brushless motor controller brushiess motors What gets seeming complexity simply no brushes means no brush resistance higher efficiency no brush drag much lower current lower power levels no brush commutator wear no brush sparking electrical noise no brush angle adjust no brush protrusions motor case no brush capacitors no brush dustthat insidious black powder gets over everything stays Brush dust Electric fliers equivalent wet goo its just theres much less Wet engines typically have nice feature thats usually duplicated Electric motors knurled prop drive prevents props spinners slipping prop nut tightened Electric prop adapters have smooth-faced surface often its Kirk Massey custom tandem Astro 25 Write Kirk very difficult tighten upon prop New Creations catalogor prop/spinner combination 78 Model Aviation 4YES THE TWIN-AIR 20 IS HERE AT LAST YES THE TWIN-AIR 20 REALLY CAN BE CONTROLLED ON JUST ONE ENGINE YES THE TWIN-AIR 20 OFFERS THE SAME HIGH QUALITY PERFOR MANCE EASE OF FINING AND HANDLING AEROBAliC CAPABIU TIES FUN TO BUILD AND FUN TO FLY FEATURES FOUND IN ALL NORTHEAST AERODYNAMIC KITS THE TRAIN-AIRS BEL-AIRS AND SPORT AIR YES ITS FROM . NORTHEAST AERODYNAMICS INC 4 NORTHEA ST AERODYNAMICS INC 150 ROBINSON ROAD ON NH 03051 881-5899 Specifications Engine Requirement -Two 20-30 Wing Span 58 Wing Area 625 Sq 434 Sq Fuselage Length 43 Fuselage Width 35 Overall Weight Range 55 65 pounds Wing Loading Range 195 239 Sq Ft Radio Functions 4 Channel Ask local hobby shop order direct Better engine protection rust protection Higher performance Rirnn nffRrc full/inn nf fun/s ranoino 0% uws boats ducted fans fixed wing rotaly wing theres Byron Fuel blended specifically needs including three premium Byron RACE car fuels Get fueling confidence Get Byron Fuel fuel champions BYRON ORIGINALS because everything wants slip smooth surface theres no bite Ive found simple washer cut drywall sandpaper corrects problem drywall sandpaper looks like window screen its really gritty material sands both sides stuff have labeled 220 gritjust like conventional sandpaper material makes effective nonslip washers can placed between prop adapter face prop spinner made several washers first cutting center hole sized fit prop shaft easily done sharpened piece brass tubing cut outer circumference washer old scissors recommend using good tools Obviously almost size washer can made various prop adapters pennies can make lifetime supply washers single sheet sanding material youve plagued prop slipitus give try let know works March column included description attractively priced tested characterized SCRC cells available B & T RC Products 2905 Guess Rd Suite 1 Durham NC 27705 Tel 919 471-2060 understand have taken advantage supply opportunity Ive learned some other useful B & T goodies including some preformed metal straps relatively thick highly conductive copper material can easily soldered make cell-to-cell interconnections photos shows what look like soldered cell illustrate use addition copper interconnects also got some large clear heat-shrink tubing cover cells/packs So youre inclined roll own packs get touch folks excellent products service very reasonable prices gentleman talk Billy Russell has lots RC car background now getting some familiarity aeromodeling crowd well Before leave area note label SCRC cell Its electrical test performance record particular B & T cell youll find cells given pack have closely matching information labels information listed includes initial final run voltages minutes 20-amps dram time cell resistance etc think its fair thank RC car crowd driving battery technology degree beneficiaries quest higher levels performance April column advised several new microprocessor-controlled speed controls try out Id have report coming up later year would happen after opportunity try em bench well airthe latter having wait until winter passed Given brutality winter its clear Champion Model Products 880 Carmen Court LaVerne CA 91750 909 599-3348 July1994 79 ock Byron Fuel contact us direct Grove IA 51445 364-3165 Seven models available weigh both gins & ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $29250 Includes AC adaptor UPS 1 yr warrantee N Rechargeable Nickel Metal Hydride Batteries New HydriMax batteriesthe first nickel metal hydride NiMH cells packs available R/C usesafely power full day flying charge youve enjoyed convenience using new NiMH-powered laptop computers imagine freedom youll have HydriMax batteries sophisticated transmitters other R/fD gear. HydriMax NiMH batteries double rated capacity ordinary Tx Rx packswithout requiring room bigger cells can provide tests have proven see chart DOUBLE safe flight/run time supply greater capacity adding weightideal radio other low medium current applications M cells provide 1200 mAh capacityA cells provide 125 TYPICAL DISCHARGE CURVE COMPARISONA NickeICadnion oR NickelHydide 1800 mAh capacity can charge HydriMax batterieslIT 2 times standard radio NiCd chargers useflying time expanded scale voltmeter measure NMH Ullage Unlike NiGds present no disposal problemsNiMH batteries environmentally safe Choose full range assembled packs tabbed untabbed cells free brochure1234 0 67 8 9 10 Ii 12 location dealer nearest please*TIME HOURS call 1-800-682-8948 ext 043AYR82Eo2o0oo40RngO8VLA90FP109P 2 Ii\IE 8 DRInbotod ERolosively Thoogh GREAT PLANES MODEL OISTRIeUTO8S COMPANY P08069021 Chanpogn IL 618289021 I-4J WARIIA WK SPECIFICATIONS WING SPA N 60 ENGINE SIZE60 2-S7ROKE WEIGHT74 LBS $17000 ALL KITS FEATURE HAND LAID FIBERGL4SS FUSEIAGEPANEL UNES & SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULAJIEADS SEE YOUR LOCAL DEALJZ OR CALL HOBBY IL4NGAR 61M-283-5 746 FOR IMA4EDIA7E DElIVERY DE4LER INQUIRIFS WFLCOME WEACCEPT VIS4 MAEIRCARD & DISCOVER CARDS WEGLADLYSHIP C GD SHIPPING& IIANDUNG$SW PER KIT COPflYNENTAL U&4 OilIER AREAS CALL KEN7VCKYRFSIDEJeI ADD 6% SALES TAX HOBBY HANGAR ISA FULL SER VICE HOBBY SHOP WITH OVER 11600 ITEMS IN STOCI4 CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HQAR EXCLUSIVE DISTRIBUTOR OF FIBER SCALE MODELS 153 LLOYD AVE FLORENCE KY 41042 606-283-5746 PHONE 606-282-4666 FAX ALSO AVAILABLE Focke WuIf 190 $18500 P-47 Thunderbolt $17000 Cessna 150 $17000 Giant Scale Me-i 09 $37500 its ever going end As write early March under much ice snow have done quite bit bench-running Ive built some dedicated test accessories help compare finer points new products Ive also talking some manufacturers other evaluators Whats come out knowledge some newest controls already design revision means some what Im working already becoming obsolete make speed controls zealous lot Electric modelers themselves very friendly very driven never seem content continue improve products partly caused feedback manufacturers manufacturer will often supply samples columnists other Electric modelers Its good way manufacturers get lots field testing under varied conditions example just finding out design works different radios valuable piece information can tell features todays products outcome field testing us have caused product revisions can require much work sometimes have accident because So effort part Its just part total E-modeling fun very rewarding help advance product designeven small way also gives opportunity share new product information experience Inherent process however policy maintaining separation certain proprietary private information learn stays individual supplier Im saying because sometimes readers press bit now know times have little say some matters September 1993 column commented .got some speed control design ideas own try out. statement part discussion RE VOLT Electric designed specifically easily try things out air brief comment stuck readers Im getting inquiries about what meant have some ideas try fact finally began miniproject few weeks ago am getting speed control business What Im pursuing simply fun thing trying some own electronics Electrics possible out might come uaique maybe dramatic speed control operational concept something Im aware having done before Im prepared detail point Only other person aware what Im doing hes expressing some enthusiasm combined some doubt Well see can safely bet however results something worthwhile Ill share column So ends another column Please include SASE inquiry youd like reply Happy summertime Electric landings odel Aviation Double flight time charge adding weight II