RADIO CONTROL ELECTRICS N 4-YEU COLUMN WILL COVER some big USA/FAI news some industry news motor alternatives speed-control stuff Steve Neu man dazzled hundreds KRC past years FM Electrics called tell 94 E-Power FAI meet results years gathering world competitors took place Australia November results very exciting US Team took second overall team member Jerry Bridgeman iaking individual first place Butrelated big news US Team outfitted custom Aveox brushless motors teams motor controls designed individually built Steve extreme compactness tells Aveox FM motor motor controller measured 90% efficiency 3000 watts dynamometerto unheard-of achievement Congratulations team guess what Some other international teams now carefully studying brushless technology As interesting sidelight competitive team models ouffitted conventional motors planetary drives Gear drives never used activities case however props variable pitch controlled servo-driven pushrod running through motor shaft gear-drive assembly servo commanded microprocessor sensor inputs locations wing sophistication notwithstanding Aveox brushless motor technology clearly superior giant attaboy David Palombo man behind Aveox know-how conviction moxie make happen now have seen ads EMS Jomar speed controls Joe Utasi has sold speed-control business EMS now using trade name Jomar know Joe first offer high-rate speed controls decade agonow established standard speed-control technology Over years Joe continually expanded improved products always highly motivated provide very best Hes familiar participant KRC meet holds reputation helping anyone speed control need Joe now pursuing other electronic things life tells enjoying some newfound freedom thats allowing him build fly morefor change sincere personal thank Joe personal advancement Electric art Im looking forward flying Joe KRC 95 Last month offered some thoughts about low- high-quality ends Electric motors chargers review put forth suggestion Electric beginners feel might very well stay grow Electric should seriously consider investing high-end motor charger products right start Now want fill middle between economical cosfly power systems options class ie kind motor/power system market probably best described middle ground product least two established manufacturers products addition modelers roll own versions within motor/power system categoryIm referring power systems based car motors derivatives ouffitted gear drives powered six 10 cells typically turn large folders established suppliers include American Fun Fly Co Model Electronics first-hand experience personal observations flight demos can tell alternative power systems well worth considering Electric applications As rough guideline associated costs between lowest- highest-priced power-system products motors serviceable meaning throwaways economy can motors Some offer features like adjustable brush angle wide range gear drive ratios available So far Ive personally flown two versions AFF systems REVOLTs have some Model Electronics products try its 78 Modei Aviation 0 MHz radio spectrum sweep display RC 534 MHz middle channel 50 its right Disregard leftmost spike microprocessor-controlled speed control interference pattern hits 534 hard does infringe Channel 50 Effect chokes speed-control lead Interfering speed-control noise pile pushed left away RC signal winter did however witness several flight demonstrations Pete Peterson Model Electronics KRC 94 performance spectacular exactly surprise because once watched Daryl Sanford American Fun Fly show stuff too its clear can attain some impressive flight performance such moderately priced equipment fact Im enthused Im now planning new model design especially such six-to-tencell power systemsbut will few months As roll own crowd Im aware several active E modelers have caught capability affordability geared systems based car similar motors routinely fly preference else Scott Hartman Fritch Texas routinely uses preferred car motor gear drive prop has photo-REVOLT shown photos Scott designer Ace Puddlemaster Scott recently told substituting Model Electronics system favorite home brews much surprise found significantly improved performanceHaving interest tweaked such stories did visit local hobby shop surveyed car motor department What got trouble frustration least several zillion car motors available feature emotional names much other info box oh begin Unless youre experimenting might just want go AFF Model Electronics folks have done dirty work selecting best options motors/gears thus relieving having choose between such tantalizing nomenclature Super Ultra Turbo Motor Mania Mastadon Terminator car motors geared systems motors have very high rpm winds would part useless direct-drive motorsthe prop selection would limited very small props too useful purposes other hand combined 80 Model Aviation t Hartmans Revolt 35mm camera Installation Lens looking down just behind landing gear mounting plate Scotts camera shutter activating servo attached geared car motor seven cells flies installation easily full line fuels ranging 0% banA ata lower price youre cars boats UUUWU IdiIS wwu wing rotay wing theres Byron Fuel blended specifically needs including three premium Byron RACE car fuels Get fueling confidence Get Byron Fuel sivethe fuel champions aler first , doesnt stock Byron Inc ox 279 Grove IA gear drives turning large props motors afford much performance flying fun course model design lends itself well large prop large folding prop some judgment required plan have detailed info product choices applications future now suggest send info suppliers get feel whats available American Fun Fly Co 7543 Maple Ave Pulaski NY 13142 Tel 315 298-3630 315 676-4988 Model Electronics 6500 6th Ave NW Seaffle WA 98117 Tel 206 7827458 February issue has out about two weeks readers reacting strongly speed-control discussion therein Im seeing lot reader interest because lot readers experiencing glitching problems also because continuing confusion about two speed control terms Lets address latter first Two common terms associated motor speed controls optocoupled BEC Battery Eliminator Circuitoften mentioned other Electric columns terms optocoupled BEC mutually exclusive cannot ask both functions same time As far know cannot have both BEC operation benefits optocoupling same time although some controls offer user option either Heres story BEC means speed control equipped necessary electronics power receiver servos motor battery No receiver battery needed Power derived regnlated motor battery piped receiver/servos via three-lead cable connects latter speed control wiring also carries receiver output signal speed control Its two-way street Optocoupling means no direct electrical connection between receiver system motor/power systemthe same interconnecting three-lead cable notwithstanding Thus cannot power receiver motor battery same time being optocoupled what about obvious question theres no electrical connection receiver/speed control optocoupling does speed control get its control information Fair enough communication takes place via light beam hence optocoupler Thats right light Inside optocoupler looks like four- six-lead IC alightemitting diode light receiving diode transistor wherein former sends light signals usually invisible infrared light receiver signals representations conventional pulses come out receiver just like drive servos optocoupler converts electrical pulses light pulses light receiver converts light pulses back electrical pulses needed operate rest speed-control electronics main point no hard connection between receiver wiring power system wiring just no power can carried motor battery radio via lighted path also hard have power-system noise carried radio Implicit fact light commands can travel oniy direction light emitter light receiver Incidentally takes place sealed package couldnt see light beam visible light spectrum know speed control optocoupled Its easy find out simple ohmmeter will job speed control disconnected everything connect ohmmeter probe three speedcontrol/radio receiver cable connector pins time Connect other meter probe speed-control motor motor battery connectorsone time Try combinations have optocoupled speed control ohmmeter will register infinity open circuit time done overthis time reversing exchanging two meter leads between receiver cable plug motor/battery connector positions reverses test polarity assure tricked some polarity effect connection combination causes viable meter WITH fiFiTbFIDfL IFiTELLIGEIlCE creation space age technology 21st CENTURY IRON makes other covering irons obsolete No guesswork major iron-on covering manufacturers recommend specific application shrinking temperatures achieve tightest longest lasting possible finish Only 21st CENTURY IRON has built-in temperature control system accurate within three degrees Fahrenheit dial setting Simply set dial desired temperature Temperature Processing Indicator TPI lights iron temperature rises reach dial setting TPI blinks set temperature reached telling its time cover No thermometer complicated testing needed advanced tool iron allows dial specific temperature 21st CENTURYRON has designed ground up master modelers Itsique shoe design will reach places other irons can dream ofand its fully contoured shape allows dent-freeapplication temperature control dial handle hot shoe no burned fingers Its specially ulated coating delivers remarkable slip characteristics smoothest no-drag slide over virtually covering surface custom-fitted covering sock sturdy table top stand included free costs little conventional irons its last iron youll ever buy smart iron Coverite REAR STTIJS ThECOOL OU4T *At- NOTO ~ WLHinLVM COTRO TE CURATh TOAThm PE May 1995 81 THE WOFiLIJS OFiLY COUEFIF1O IFiOFi reading control optocoupled truly/fully effective optocoupling scheme has three leads receiver cable isolated motor/power system connectors Anything less about good having no optocoupler begin Take care get false indication allowing fingers touch probe tips meter will read body discussion should now quite clear optocoupled speed controls cannot also BEC functional also controls very effective reducing power-system-induced radio glitching radio frequencies actually some very small connectivity between radio power systems due small electrical RADII CONTROL * MODEL RAILROADS * U m IMaking History East Coast * G0 La ILl * FT WASUNCTU EXPO cENTER -6 MAY 18-211995FYI _________________________S Tur nan u uuu I * E RTIFSk Inc UIULI lULL LINE Hubby Show East Coasts * * St *** DEMONSTRATIONS *** REGISTOIR NOW LaATT 1AY yijj I*U/Ic~Jii * MINIATURES * SLOT CARS * GAMES * RADIO CONTROL * MODEL RAILROADS * Gear Door Cc1er Battery Backer Exactly wh t need forBest way insure reliable split retractdoorsequenc-power model Use ing like P-51 Mus-with 2 packs Runs main tang & otheraircraftinclud-packthen switchesto hack ing jetsl Install aup pack Works stan Y connector retractdard 4 cell 5 cell Gel-Cell channel Controls gear doorpacks Battery packs can servos time re-differentcapacitylikeal200 tract switch used up ordown geardoors openforafew& 600 Solid state design seconds close agajul Delaytimeisadjustablefromuses MOSFET transistors add own switch har 1-9 seconds 1 5x1 5x3/4 1/2 oz $3995nesses wiring 1 5x1 5x3/4 Weighs 8 oz $4995 GLITCH Buster Optically isolate 6 chan nels use separate bat tery pack servo power Totally eliminates glitching caused heavy duty servos long leads can use 4 5 6 cells servo side extra powerand speed Requires insianalion oryourown runiouno servo leads Compatible PCM radioul Used Reno Racers NASA tool 15x15x3/4 Wt 8 oz 4405 Mini-Max Throttle microprocessor-con trolled super-small MINIMAX features high-rate no adjustment auto-setup softstart brake throttle-guard wontutart armed stick position motor-off tail safe extensive glitch fil ter software Designed 1-16 ceiis 0 30 amps j20 amps peak lncludesservoconnectorandSERMOSonnectors Measures lxi 5x5 ht 1 oz Introductory price $7995 capacitance associated physical optocoupler printed wiring board its mounted Usually about two four picoFaradsrepresenting several hundred Ohms 72 MHz optocoupling very good what does have actually seen cases some residue glitching via small capacitance could reduced eliminated addition chokes discussed last montha sort double safety will Heres hoping above has cleared up some confusion shared some lessknown information besides Continuing last three columns discussion microprocessor-controlinduced glitching several photos month shown results work done since writing last column Photos Two Three own oscilloscope displaying radio frequency spectrum about 1 MHz left about 100 MHz right photos tall spike leftmost edge can ignored its zero beat spectrum analyzer probe using Photo spike near middle pix 534 MHz RC signal its right Channel 50 RC signal markers appear Photos Two Three also can see whats happening Moving Photo Two large noise pileup electrical trash noise receiver lead certaln new preproduction speed control noise caused microprocessor motor controller clearly encompasses 534 RC frequency interference fully explains experience lots inflight hits test product Note also no junk showing near Ch 50 marker Moving Photo Three observe trash pile shifted left RC signal same speed control now Ive installed chokes discussed last month control-to-receiver lead photo fully explains why/how chokes work well reducing in-flight glitching effect stop trash extending RC frequency area noise energy still piled higher lower frequency photos also reasonably show flying control 72 MHz equipment nearly same with/without chokes no electrical junk anyway Indeed FM may have nothing better performance previously reported have kind photographic data several new speed controls Ive sharing info various manufacturers involved sample photos show trouble 50 MHz frequencies sort thing could actually happen anywhereincluding 72 MHz spots Given observations Ive encouraging manufacturers invest low-cost Spectrum Probe assist design new products Incidentally photos got taken borrowed Probe just see what could see did ever am doing Its part own Electric aeromodeling fun case Ive also told some appreciative industry folks really very worthwhile Sure makes feel gooood hope find too Meanwhile please enclose SASE correspondence youd like reply go forth enjoy very best possible Springtime Electric Landings everyone odel Aviation CARS * MINIATURE * GAMES U U THE EAST COAST * e HOBBY SHOW m I22403 Miuxion Hum Lu Yorbu Lindu tA 92687 Info 714-692-1393 Orders 800-645-8978 $300 Shipping ling per order Credit Cards accepted
Edition: Model Aviation - 1995/05
Page Numbers: 78, 80, 81, 82
RADIO CONTROL ELECTRICS N 4-YEU COLUMN WILL COVER some big USA/FAI news some industry news motor alternatives speed-control stuff Steve Neu man dazzled hundreds KRC past years FM Electrics called tell 94 E-Power FAI meet results years gathering world competitors took place Australia November results very exciting US Team took second overall team member Jerry Bridgeman iaking individual first place Butrelated big news US Team outfitted custom Aveox brushless motors teams motor controls designed individually built Steve extreme compactness tells Aveox FM motor motor controller measured 90% efficiency 3000 watts dynamometerto unheard-of achievement Congratulations team guess what Some other international teams now carefully studying brushless technology As interesting sidelight competitive team models ouffitted conventional motors planetary drives Gear drives never used activities case however props variable pitch controlled servo-driven pushrod running through motor shaft gear-drive assembly servo commanded microprocessor sensor inputs locations wing sophistication notwithstanding Aveox brushless motor technology clearly superior giant attaboy David Palombo man behind Aveox know-how conviction moxie make happen now have seen ads EMS Jomar speed controls Joe Utasi has sold speed-control business EMS now using trade name Jomar know Joe first offer high-rate speed controls decade agonow established standard speed-control technology Over years Joe continually expanded improved products always highly motivated provide very best Hes familiar participant KRC meet holds reputation helping anyone speed control need Joe now pursuing other electronic things life tells enjoying some newfound freedom thats allowing him build fly morefor change sincere personal thank Joe personal advancement Electric art Im looking forward flying Joe KRC 95 Last month offered some thoughts about low- high-quality ends Electric motors chargers review put forth suggestion Electric beginners feel might very well stay grow Electric should seriously consider investing high-end motor charger products right start Now want fill middle between economical cosfly power systems options class ie kind motor/power system market probably best described middle ground product least two established manufacturers products addition modelers roll own versions within motor/power system categoryIm referring power systems based car motors derivatives ouffitted gear drives powered six 10 cells typically turn large folders established suppliers include American Fun Fly Co Model Electronics first-hand experience personal observations flight demos can tell alternative power systems well worth considering Electric applications As rough guideline associated costs between lowest- highest-priced power-system products motors serviceable meaning throwaways economy can motors Some offer features like adjustable brush angle wide range gear drive ratios available So far Ive personally flown two versions AFF systems REVOLTs have some Model Electronics products try its 78 Modei Aviation 0 MHz radio spectrum sweep display RC 534 MHz middle channel 50 its right Disregard leftmost spike microprocessor-controlled speed control interference pattern hits 534 hard does infringe Channel 50 Effect chokes speed-control lead Interfering speed-control noise pile pushed left away RC signal winter did however witness several flight demonstrations Pete Peterson Model Electronics KRC 94 performance spectacular exactly surprise because once watched Daryl Sanford American Fun Fly show stuff too its clear can attain some impressive flight performance such moderately priced equipment fact Im enthused Im now planning new model design especially such six-to-tencell power systemsbut will few months As roll own crowd Im aware several active E modelers have caught capability affordability geared systems based car similar motors routinely fly preference else Scott Hartman Fritch Texas routinely uses preferred car motor gear drive prop has photo-REVOLT shown photos Scott designer Ace Puddlemaster Scott recently told substituting Model Electronics system favorite home brews much surprise found significantly improved performanceHaving interest tweaked such stories did visit local hobby shop surveyed car motor department What got trouble frustration least several zillion car motors available feature emotional names much other info box oh begin Unless youre experimenting might just want go AFF Model Electronics folks have done dirty work selecting best options motors/gears thus relieving having choose between such tantalizing nomenclature Super Ultra Turbo Motor Mania Mastadon Terminator car motors geared systems motors have very high rpm winds would part useless direct-drive motorsthe prop selection would limited very small props too useful purposes other hand combined 80 Model Aviation t Hartmans Revolt 35mm camera Installation Lens looking down just behind landing gear mounting plate Scotts camera shutter activating servo attached geared car motor seven cells flies installation easily full line fuels ranging 0% banA ata lower price youre cars boats UUUWU IdiIS wwu wing rotay wing theres Byron Fuel blended specifically needs including three premium Byron RACE car fuels Get fueling confidence Get Byron Fuel sivethe fuel champions aler first , doesnt stock Byron Inc ox 279 Grove IA gear drives turning large props motors afford much performance flying fun course model design lends itself well large prop large folding prop some judgment required plan have detailed info product choices applications future now suggest send info suppliers get feel whats available American Fun Fly Co 7543 Maple Ave Pulaski NY 13142 Tel 315 298-3630 315 676-4988 Model Electronics 6500 6th Ave NW Seaffle WA 98117 Tel 206 7827458 February issue has out about two weeks readers reacting strongly speed-control discussion therein Im seeing lot reader interest because lot readers experiencing glitching problems also because continuing confusion about two speed control terms Lets address latter first Two common terms associated motor speed controls optocoupled BEC Battery Eliminator Circuitoften mentioned other Electric columns terms optocoupled BEC mutually exclusive cannot ask both functions same time As far know cannot have both BEC operation benefits optocoupling same time although some controls offer user option either Heres story BEC means speed control equipped necessary electronics power receiver servos motor battery No receiver battery needed Power derived regnlated motor battery piped receiver/servos via three-lead cable connects latter speed control wiring also carries receiver output signal speed control Its two-way street Optocoupling means no direct electrical connection between receiver system motor/power systemthe same interconnecting three-lead cable notwithstanding Thus cannot power receiver motor battery same time being optocoupled what about obvious question theres no electrical connection receiver/speed control optocoupling does speed control get its control information Fair enough communication takes place via light beam hence optocoupler Thats right light Inside optocoupler looks like four- six-lead IC alightemitting diode light receiving diode transistor wherein former sends light signals usually invisible infrared light receiver signals representations conventional pulses come out receiver just like drive servos optocoupler converts electrical pulses light pulses light receiver converts light pulses back electrical pulses needed operate rest speed-control electronics main point no hard connection between receiver wiring power system wiring just no power can carried motor battery radio via lighted path also hard have power-system noise carried radio Implicit fact light commands can travel oniy direction light emitter light receiver Incidentally takes place sealed package couldnt see light beam visible light spectrum know speed control optocoupled Its easy find out simple ohmmeter will job speed control disconnected everything connect ohmmeter probe three speedcontrol/radio receiver cable connector pins time Connect other meter probe speed-control motor motor battery connectorsone time Try combinations have optocoupled speed control ohmmeter will register infinity open circuit time done overthis time reversing exchanging two meter leads between receiver cable plug motor/battery connector positions reverses test polarity assure tricked some polarity effect connection combination causes viable meter WITH fiFiTbFIDfL IFiTELLIGEIlCE creation space age technology 21st CENTURY IRON makes other covering irons obsolete No guesswork major iron-on covering manufacturers recommend specific application shrinking temperatures achieve tightest longest lasting possible finish Only 21st CENTURY IRON has built-in temperature control system accurate within three degrees Fahrenheit dial setting Simply set dial desired temperature Temperature Processing Indicator TPI lights iron temperature rises reach dial setting TPI blinks set temperature reached telling its time cover No thermometer complicated testing needed advanced tool iron allows dial specific temperature 21st CENTURYRON has designed ground up master modelers Itsique shoe design will reach places other irons can dream ofand its fully contoured shape allows dent-freeapplication temperature control dial handle hot shoe no burned fingers Its specially ulated coating delivers remarkable slip characteristics smoothest no-drag slide over virtually covering surface custom-fitted covering sock sturdy table top stand included free costs little conventional irons its last iron youll ever buy smart iron Coverite REAR STTIJS ThECOOL OU4T *At- NOTO ~ WLHinLVM COTRO TE CURATh TOAThm PE May 1995 81 THE WOFiLIJS OFiLY COUEFIF1O IFiOFi reading control optocoupled truly/fully effective optocoupling scheme has three leads receiver cable isolated motor/power system connectors Anything less about good having no optocoupler begin Take care get false indication allowing fingers touch probe tips meter will read body discussion should now quite clear optocoupled speed controls cannot also BEC functional also controls very effective reducing power-system-induced radio glitching radio frequencies actually some very small connectivity between radio power systems due small electrical RADII CONTROL * MODEL RAILROADS * U m IMaking History East Coast * G0 La ILl * FT WASUNCTU EXPO cENTER -6 MAY 18-211995FYI _________________________S Tur nan u uuu I * E RTIFSk Inc UIULI lULL LINE Hubby Show East Coasts * * St *** DEMONSTRATIONS *** REGISTOIR NOW LaATT 1AY yijj I*U/Ic~Jii * MINIATURES * SLOT CARS * GAMES * RADIO CONTROL * MODEL RAILROADS * Gear Door Cc1er Battery Backer Exactly wh t need forBest way insure reliable split retractdoorsequenc-power model Use ing like P-51 Mus-with 2 packs Runs main tang & otheraircraftinclud-packthen switchesto hack ing jetsl Install aup pack Works stan Y connector retractdard 4 cell 5 cell Gel-Cell channel Controls gear doorpacks Battery packs can servos time re-differentcapacitylikeal200 tract switch used up ordown geardoors openforafew& 600 Solid state design seconds close agajul Delaytimeisadjustablefromuses MOSFET transistors add own switch har 1-9 seconds 1 5x1 5x3/4 1/2 oz $3995nesses wiring 1 5x1 5x3/4 Weighs 8 oz $4995 GLITCH Buster Optically isolate 6 chan nels use separate bat tery pack servo power Totally eliminates glitching caused heavy duty servos long leads can use 4 5 6 cells servo side extra powerand speed Requires insianalion oryourown runiouno servo leads Compatible PCM radioul Used Reno Racers NASA tool 15x15x3/4 Wt 8 oz 4405 Mini-Max Throttle microprocessor-con trolled super-small MINIMAX features high-rate no adjustment auto-setup softstart brake throttle-guard wontutart armed stick position motor-off tail safe extensive glitch fil ter software Designed 1-16 ceiis 0 30 amps j20 amps peak lncludesservoconnectorandSERMOSonnectors Measures lxi 5x5 ht 1 oz Introductory price $7995 capacitance associated physical optocoupler printed wiring board its mounted Usually about two four picoFaradsrepresenting several hundred Ohms 72 MHz optocoupling very good what does have actually seen cases some residue glitching via small capacitance could reduced eliminated addition chokes discussed last montha sort double safety will Heres hoping above has cleared up some confusion shared some lessknown information besides Continuing last three columns discussion microprocessor-controlinduced glitching several photos month shown results work done since writing last column Photos Two Three own oscilloscope displaying radio frequency spectrum about 1 MHz left about 100 MHz right photos tall spike leftmost edge can ignored its zero beat spectrum analyzer probe using Photo spike near middle pix 534 MHz RC signal its right Channel 50 RC signal markers appear Photos Two Three also can see whats happening Moving Photo Two large noise pileup electrical trash noise receiver lead certaln new preproduction speed control noise caused microprocessor motor controller clearly encompasses 534 RC frequency interference fully explains experience lots inflight hits test product Note also no junk showing near Ch 50 marker Moving Photo Three observe trash pile shifted left RC signal same speed control now Ive installed chokes discussed last month control-to-receiver lead photo fully explains why/how chokes work well reducing in-flight glitching effect stop trash extending RC frequency area noise energy still piled higher lower frequency photos also reasonably show flying control 72 MHz equipment nearly same with/without chokes no electrical junk anyway Indeed FM may have nothing better performance previously reported have kind photographic data several new speed controls Ive sharing info various manufacturers involved sample photos show trouble 50 MHz frequencies sort thing could actually happen anywhereincluding 72 MHz spots Given observations Ive encouraging manufacturers invest low-cost Spectrum Probe assist design new products Incidentally photos got taken borrowed Probe just see what could see did ever am doing Its part own Electric aeromodeling fun case Ive also told some appreciative industry folks really very worthwhile Sure makes feel gooood hope find too Meanwhile please enclose SASE correspondence youd like reply go forth enjoy very best possible Springtime Electric Landings everyone odel Aviation CARS * MINIATURE * GAMES U U THE EAST COAST * e HOBBY SHOW m I22403 Miuxion Hum Lu Yorbu Lindu tA 92687 Info 714-692-1393 Orders 800-645-8978 $300 Shipping ling per order Credit Cards accepted
Edition: Model Aviation - 1995/05
Page Numbers: 78, 80, 81, 82
RADIO CONTROL ELECTRICS N 4-YEU COLUMN WILL COVER some big USA/FAI news some industry news motor alternatives speed-control stuff Steve Neu man dazzled hundreds KRC past years FM Electrics called tell 94 E-Power FAI meet results years gathering world competitors took place Australia November results very exciting US Team took second overall team member Jerry Bridgeman iaking individual first place Butrelated big news US Team outfitted custom Aveox brushless motors teams motor controls designed individually built Steve extreme compactness tells Aveox FM motor motor controller measured 90% efficiency 3000 watts dynamometerto unheard-of achievement Congratulations team guess what Some other international teams now carefully studying brushless technology As interesting sidelight competitive team models ouffitted conventional motors planetary drives Gear drives never used activities case however props variable pitch controlled servo-driven pushrod running through motor shaft gear-drive assembly servo commanded microprocessor sensor inputs locations wing sophistication notwithstanding Aveox brushless motor technology clearly superior giant attaboy David Palombo man behind Aveox know-how conviction moxie make happen now have seen ads EMS Jomar speed controls Joe Utasi has sold speed-control business EMS now using trade name Jomar know Joe first offer high-rate speed controls decade agonow established standard speed-control technology Over years Joe continually expanded improved products always highly motivated provide very best Hes familiar participant KRC meet holds reputation helping anyone speed control need Joe now pursuing other electronic things life tells enjoying some newfound freedom thats allowing him build fly morefor change sincere personal thank Joe personal advancement Electric art Im looking forward flying Joe KRC 95 Last month offered some thoughts about low- high-quality ends Electric motors chargers review put forth suggestion Electric beginners feel might very well stay grow Electric should seriously consider investing high-end motor charger products right start Now want fill middle between economical cosfly power systems options class ie kind motor/power system market probably best described middle ground product least two established manufacturers products addition modelers roll own versions within motor/power system categoryIm referring power systems based car motors derivatives ouffitted gear drives powered six 10 cells typically turn large folders established suppliers include American Fun Fly Co Model Electronics first-hand experience personal observations flight demos can tell alternative power systems well worth considering Electric applications As rough guideline associated costs between lowest- highest-priced power-system products motors serviceable meaning throwaways economy can motors Some offer features like adjustable brush angle wide range gear drive ratios available So far Ive personally flown two versions AFF systems REVOLTs have some Model Electronics products try its 78 Modei Aviation 0 MHz radio spectrum sweep display RC 534 MHz middle channel 50 its right Disregard leftmost spike microprocessor-controlled speed control interference pattern hits 534 hard does infringe Channel 50 Effect chokes speed-control lead Interfering speed-control noise pile pushed left away RC signal winter did however witness several flight demonstrations Pete Peterson Model Electronics KRC 94 performance spectacular exactly surprise because once watched Daryl Sanford American Fun Fly show stuff too its clear can attain some impressive flight performance such moderately priced equipment fact Im enthused Im now planning new model design especially such six-to-tencell power systemsbut will few months As roll own crowd Im aware several active E modelers have caught capability affordability geared systems based car similar motors routinely fly preference else Scott Hartman Fritch Texas routinely uses preferred car motor gear drive prop has photo-REVOLT shown photos Scott designer Ace Puddlemaster Scott recently told substituting Model Electronics system favorite home brews much surprise found significantly improved performanceHaving interest tweaked such stories did visit local hobby shop surveyed car motor department What got trouble frustration least several zillion car motors available feature emotional names much other info box oh begin Unless youre experimenting might just want go AFF Model Electronics folks have done dirty work selecting best options motors/gears thus relieving having choose between such tantalizing nomenclature Super Ultra Turbo Motor Mania Mastadon Terminator car motors geared systems motors have very high rpm winds would part useless direct-drive motorsthe prop selection would limited very small props too useful purposes other hand combined 80 Model Aviation t Hartmans Revolt 35mm camera Installation Lens looking down just behind landing gear mounting plate Scotts camera shutter activating servo attached geared car motor seven cells flies installation easily full line fuels ranging 0% banA ata lower price youre cars boats UUUWU IdiIS wwu wing rotay wing theres Byron Fuel blended specifically needs including three premium Byron RACE car fuels Get fueling confidence Get Byron Fuel sivethe fuel champions aler first , doesnt stock Byron Inc ox 279 Grove IA gear drives turning large props motors afford much performance flying fun course model design lends itself well large prop large folding prop some judgment required plan have detailed info product choices applications future now suggest send info suppliers get feel whats available American Fun Fly Co 7543 Maple Ave Pulaski NY 13142 Tel 315 298-3630 315 676-4988 Model Electronics 6500 6th Ave NW Seaffle WA 98117 Tel 206 7827458 February issue has out about two weeks readers reacting strongly speed-control discussion therein Im seeing lot reader interest because lot readers experiencing glitching problems also because continuing confusion about two speed control terms Lets address latter first Two common terms associated motor speed controls optocoupled BEC Battery Eliminator Circuitoften mentioned other Electric columns terms optocoupled BEC mutually exclusive cannot ask both functions same time As far know cannot have both BEC operation benefits optocoupling same time although some controls offer user option either Heres story BEC means speed control equipped necessary electronics power receiver servos motor battery No receiver battery needed Power derived regnlated motor battery piped receiver/servos via three-lead cable connects latter speed control wiring also carries receiver output signal speed control Its two-way street Optocoupling means no direct electrical connection between receiver system motor/power systemthe same interconnecting three-lead cable notwithstanding Thus cannot power receiver motor battery same time being optocoupled what about obvious question theres no electrical connection receiver/speed control optocoupling does speed control get its control information Fair enough communication takes place via light beam hence optocoupler Thats right light Inside optocoupler looks like four- six-lead IC alightemitting diode light receiving diode transistor wherein former sends light signals usually invisible infrared light receiver signals representations conventional pulses come out receiver just like drive servos optocoupler converts electrical pulses light pulses light receiver converts light pulses back electrical pulses needed operate rest speed-control electronics main point no hard connection between receiver wiring power system wiring just no power can carried motor battery radio via lighted path also hard have power-system noise carried radio Implicit fact light commands can travel oniy direction light emitter light receiver Incidentally takes place sealed package couldnt see light beam visible light spectrum know speed control optocoupled Its easy find out simple ohmmeter will job speed control disconnected everything connect ohmmeter probe three speedcontrol/radio receiver cable connector pins time Connect other meter probe speed-control motor motor battery connectorsone time Try combinations have optocoupled speed control ohmmeter will register infinity open circuit time done overthis time reversing exchanging two meter leads between receiver cable plug motor/battery connector positions reverses test polarity assure tricked some polarity effect connection combination causes viable meter WITH fiFiTbFIDfL IFiTELLIGEIlCE creation space age technology 21st CENTURY IRON makes other covering irons obsolete No guesswork major iron-on covering manufacturers recommend specific application shrinking temperatures achieve tightest longest lasting possible finish Only 21st CENTURY IRON has built-in temperature control system accurate within three degrees Fahrenheit dial setting Simply set dial desired temperature Temperature Processing Indicator TPI lights iron temperature rises reach dial setting TPI blinks set temperature reached telling its time cover No thermometer complicated testing needed advanced tool iron allows dial specific temperature 21st CENTURYRON has designed ground up master modelers Itsique shoe design will reach places other irons can dream ofand its fully contoured shape allows dent-freeapplication temperature control dial handle hot shoe no burned fingers Its specially ulated coating delivers remarkable slip characteristics smoothest no-drag slide over virtually covering surface custom-fitted covering sock sturdy table top stand included free costs little conventional irons its last iron youll ever buy smart iron Coverite REAR STTIJS ThECOOL OU4T *At- NOTO ~ WLHinLVM COTRO TE CURATh TOAThm PE May 1995 81 THE WOFiLIJS OFiLY COUEFIF1O IFiOFi reading control optocoupled truly/fully effective optocoupling scheme has three leads receiver cable isolated motor/power system connectors Anything less about good having no optocoupler begin Take care get false indication allowing fingers touch probe tips meter will read body discussion should now quite clear optocoupled speed controls cannot also BEC functional also controls very effective reducing power-system-induced radio glitching radio frequencies actually some very small connectivity between radio power systems due small electrical RADII CONTROL * MODEL RAILROADS * U m IMaking History East Coast * G0 La ILl * FT WASUNCTU EXPO cENTER -6 MAY 18-211995FYI _________________________S Tur nan u uuu I * E RTIFSk Inc UIULI lULL LINE Hubby Show East Coasts * * St *** DEMONSTRATIONS *** REGISTOIR NOW LaATT 1AY yijj I*U/Ic~Jii * MINIATURES * SLOT CARS * GAMES * RADIO CONTROL * MODEL RAILROADS * Gear Door Cc1er Battery Backer Exactly wh t need forBest way insure reliable split retractdoorsequenc-power model Use ing like P-51 Mus-with 2 packs Runs main tang & otheraircraftinclud-packthen switchesto hack ing jetsl Install aup pack Works stan Y connector retractdard 4 cell 5 cell Gel-Cell channel Controls gear doorpacks Battery packs can servos time re-differentcapacitylikeal200 tract switch used up ordown geardoors openforafew& 600 Solid state design seconds close agajul Delaytimeisadjustablefromuses MOSFET transistors add own switch har 1-9 seconds 1 5x1 5x3/4 1/2 oz $3995nesses wiring 1 5x1 5x3/4 Weighs 8 oz $4995 GLITCH Buster Optically isolate 6 chan nels use separate bat tery pack servo power Totally eliminates glitching caused heavy duty servos long leads can use 4 5 6 cells servo side extra powerand speed Requires insianalion oryourown runiouno servo leads Compatible PCM radioul Used Reno Racers NASA tool 15x15x3/4 Wt 8 oz 4405 Mini-Max Throttle microprocessor-con trolled super-small MINIMAX features high-rate no adjustment auto-setup softstart brake throttle-guard wontutart armed stick position motor-off tail safe extensive glitch fil ter software Designed 1-16 ceiis 0 30 amps j20 amps peak lncludesservoconnectorandSERMOSonnectors Measures lxi 5x5 ht 1 oz Introductory price $7995 capacitance associated physical optocoupler printed wiring board its mounted Usually about two four picoFaradsrepresenting several hundred Ohms 72 MHz optocoupling very good what does have actually seen cases some residue glitching via small capacitance could reduced eliminated addition chokes discussed last montha sort double safety will Heres hoping above has cleared up some confusion shared some lessknown information besides Continuing last three columns discussion microprocessor-controlinduced glitching several photos month shown results work done since writing last column Photos Two Three own oscilloscope displaying radio frequency spectrum about 1 MHz left about 100 MHz right photos tall spike leftmost edge can ignored its zero beat spectrum analyzer probe using Photo spike near middle pix 534 MHz RC signal its right Channel 50 RC signal markers appear Photos Two Three also can see whats happening Moving Photo Two large noise pileup electrical trash noise receiver lead certaln new preproduction speed control noise caused microprocessor motor controller clearly encompasses 534 RC frequency interference fully explains experience lots inflight hits test product Note also no junk showing near Ch 50 marker Moving Photo Three observe trash pile shifted left RC signal same speed control now Ive installed chokes discussed last month control-to-receiver lead photo fully explains why/how chokes work well reducing in-flight glitching effect stop trash extending RC frequency area noise energy still piled higher lower frequency photos also reasonably show flying control 72 MHz equipment nearly same with/without chokes no electrical junk anyway Indeed FM may have nothing better performance previously reported have kind photographic data several new speed controls Ive sharing info various manufacturers involved sample photos show trouble 50 MHz frequencies sort thing could actually happen anywhereincluding 72 MHz spots Given observations Ive encouraging manufacturers invest low-cost Spectrum Probe assist design new products Incidentally photos got taken borrowed Probe just see what could see did ever am doing Its part own Electric aeromodeling fun case Ive also told some appreciative industry folks really very worthwhile Sure makes feel gooood hope find too Meanwhile please enclose SASE correspondence youd like reply go forth enjoy very best possible Springtime Electric Landings everyone odel Aviation CARS * MINIATURE * GAMES U U THE EAST COAST * e HOBBY SHOW m I22403 Miuxion Hum Lu Yorbu Lindu tA 92687 Info 714-692-1393 Orders 800-645-8978 $300 Shipping ling per order Credit Cards accepted
Edition: Model Aviation - 1995/05
Page Numbers: 78, 80, 81, 82
RADIO CONTROL ELECTRICS N 4-YEU COLUMN WILL COVER some big USA/FAI news some industry news motor alternatives speed-control stuff Steve Neu man dazzled hundreds KRC past years FM Electrics called tell 94 E-Power FAI meet results years gathering world competitors took place Australia November results very exciting US Team took second overall team member Jerry Bridgeman iaking individual first place Butrelated big news US Team outfitted custom Aveox brushless motors teams motor controls designed individually built Steve extreme compactness tells Aveox FM motor motor controller measured 90% efficiency 3000 watts dynamometerto unheard-of achievement Congratulations team guess what Some other international teams now carefully studying brushless technology As interesting sidelight competitive team models ouffitted conventional motors planetary drives Gear drives never used activities case however props variable pitch controlled servo-driven pushrod running through motor shaft gear-drive assembly servo commanded microprocessor sensor inputs locations wing sophistication notwithstanding Aveox brushless motor technology clearly superior giant attaboy David Palombo man behind Aveox know-how conviction moxie make happen now have seen ads EMS Jomar speed controls Joe Utasi has sold speed-control business EMS now using trade name Jomar know Joe first offer high-rate speed controls decade agonow established standard speed-control technology Over years Joe continually expanded improved products always highly motivated provide very best Hes familiar participant KRC meet holds reputation helping anyone speed control need Joe now pursuing other electronic things life tells enjoying some newfound freedom thats allowing him build fly morefor change sincere personal thank Joe personal advancement Electric art Im looking forward flying Joe KRC 95 Last month offered some thoughts about low- high-quality ends Electric motors chargers review put forth suggestion Electric beginners feel might very well stay grow Electric should seriously consider investing high-end motor charger products right start Now want fill middle between economical cosfly power systems options class ie kind motor/power system market probably best described middle ground product least two established manufacturers products addition modelers roll own versions within motor/power system categoryIm referring power systems based car motors derivatives ouffitted gear drives powered six 10 cells typically turn large folders established suppliers include American Fun Fly Co Model Electronics first-hand experience personal observations flight demos can tell alternative power systems well worth considering Electric applications As rough guideline associated costs between lowest- highest-priced power-system products motors serviceable meaning throwaways economy can motors Some offer features like adjustable brush angle wide range gear drive ratios available So far Ive personally flown two versions AFF systems REVOLTs have some Model Electronics products try its 78 Modei Aviation 0 MHz radio spectrum sweep display RC 534 MHz middle channel 50 its right Disregard leftmost spike microprocessor-controlled speed control interference pattern hits 534 hard does infringe Channel 50 Effect chokes speed-control lead Interfering speed-control noise pile pushed left away RC signal winter did however witness several flight demonstrations Pete Peterson Model Electronics KRC 94 performance spectacular exactly surprise because once watched Daryl Sanford American Fun Fly show stuff too its clear can attain some impressive flight performance such moderately priced equipment fact Im enthused Im now planning new model design especially such six-to-tencell power systemsbut will few months As roll own crowd Im aware several active E modelers have caught capability affordability geared systems based car similar motors routinely fly preference else Scott Hartman Fritch Texas routinely uses preferred car motor gear drive prop has photo-REVOLT shown photos Scott designer Ace Puddlemaster Scott recently told substituting Model Electronics system favorite home brews much surprise found significantly improved performanceHaving interest tweaked such stories did visit local hobby shop surveyed car motor department What got trouble frustration least several zillion car motors available feature emotional names much other info box oh begin Unless youre experimenting might just want go AFF Model Electronics folks have done dirty work selecting best options motors/gears thus relieving having choose between such tantalizing nomenclature Super Ultra Turbo Motor Mania Mastadon Terminator car motors geared systems motors have very high rpm winds would part useless direct-drive motorsthe prop selection would limited very small props too useful purposes other hand combined 80 Model Aviation t Hartmans Revolt 35mm camera Installation Lens looking down just behind landing gear mounting plate Scotts camera shutter activating servo attached geared car motor seven cells flies installation easily full line fuels ranging 0% banA ata lower price youre cars boats UUUWU IdiIS wwu wing rotay wing theres Byron Fuel blended specifically needs including three premium Byron RACE car fuels Get fueling confidence Get Byron Fuel sivethe fuel champions aler first , doesnt stock Byron Inc ox 279 Grove IA gear drives turning large props motors afford much performance flying fun course model design lends itself well large prop large folding prop some judgment required plan have detailed info product choices applications future now suggest send info suppliers get feel whats available American Fun Fly Co 7543 Maple Ave Pulaski NY 13142 Tel 315 298-3630 315 676-4988 Model Electronics 6500 6th Ave NW Seaffle WA 98117 Tel 206 7827458 February issue has out about two weeks readers reacting strongly speed-control discussion therein Im seeing lot reader interest because lot readers experiencing glitching problems also because continuing confusion about two speed control terms Lets address latter first Two common terms associated motor speed controls optocoupled BEC Battery Eliminator Circuitoften mentioned other Electric columns terms optocoupled BEC mutually exclusive cannot ask both functions same time As far know cannot have both BEC operation benefits optocoupling same time although some controls offer user option either Heres story BEC means speed control equipped necessary electronics power receiver servos motor battery No receiver battery needed Power derived regnlated motor battery piped receiver/servos via three-lead cable connects latter speed control wiring also carries receiver output signal speed control Its two-way street Optocoupling means no direct electrical connection between receiver system motor/power systemthe same interconnecting three-lead cable notwithstanding Thus cannot power receiver motor battery same time being optocoupled what about obvious question theres no electrical connection receiver/speed control optocoupling does speed control get its control information Fair enough communication takes place via light beam hence optocoupler Thats right light Inside optocoupler looks like four- six-lead IC alightemitting diode light receiving diode transistor wherein former sends light signals usually invisible infrared light receiver signals representations conventional pulses come out receiver just like drive servos optocoupler converts electrical pulses light pulses light receiver converts light pulses back electrical pulses needed operate rest speed-control electronics main point no hard connection between receiver wiring power system wiring just no power can carried motor battery radio via lighted path also hard have power-system noise carried radio Implicit fact light commands can travel oniy direction light emitter light receiver Incidentally takes place sealed package couldnt see light beam visible light spectrum know speed control optocoupled Its easy find out simple ohmmeter will job speed control disconnected everything connect ohmmeter probe three speedcontrol/radio receiver cable connector pins time Connect other meter probe speed-control motor motor battery connectorsone time Try combinations have optocoupled speed control ohmmeter will register infinity open circuit time done overthis time reversing exchanging two meter leads between receiver cable plug motor/battery connector positions reverses test polarity assure tricked some polarity effect connection combination causes viable meter WITH fiFiTbFIDfL IFiTELLIGEIlCE creation space age technology 21st CENTURY IRON makes other covering irons obsolete No guesswork major iron-on covering manufacturers recommend specific application shrinking temperatures achieve tightest longest lasting possible finish Only 21st CENTURY IRON has built-in temperature control system accurate within three degrees Fahrenheit dial setting Simply set dial desired temperature Temperature Processing Indicator TPI lights iron temperature rises reach dial setting TPI blinks set temperature reached telling its time cover No thermometer complicated testing needed advanced tool iron allows dial specific temperature 21st CENTURYRON has designed ground up master modelers Itsique shoe design will reach places other irons can dream ofand its fully contoured shape allows dent-freeapplication temperature control dial handle hot shoe no burned fingers Its specially ulated coating delivers remarkable slip characteristics smoothest no-drag slide over virtually covering surface custom-fitted covering sock sturdy table top stand included free costs little conventional irons its last iron youll ever buy smart iron Coverite REAR STTIJS ThECOOL OU4T *At- NOTO ~ WLHinLVM COTRO TE CURATh TOAThm PE May 1995 81 THE WOFiLIJS OFiLY COUEFIF1O IFiOFi reading control optocoupled truly/fully effective optocoupling scheme has three leads receiver cable isolated motor/power system connectors Anything less about good having no optocoupler begin Take care get false indication allowing fingers touch probe tips meter will read body discussion should now quite clear optocoupled speed controls cannot also BEC functional also controls very effective reducing power-system-induced radio glitching radio frequencies actually some very small connectivity between radio power systems due small electrical RADII CONTROL * MODEL RAILROADS * U m IMaking History East Coast * G0 La ILl * FT WASUNCTU EXPO cENTER -6 MAY 18-211995FYI _________________________S Tur nan u uuu I * E RTIFSk Inc UIULI lULL LINE Hubby Show East Coasts * * St *** DEMONSTRATIONS *** REGISTOIR NOW LaATT 1AY yijj I*U/Ic~Jii * MINIATURES * SLOT CARS * GAMES * RADIO CONTROL * MODEL RAILROADS * Gear Door Cc1er Battery Backer Exactly wh t need forBest way insure reliable split retractdoorsequenc-power model Use ing like P-51 Mus-with 2 packs Runs main tang & otheraircraftinclud-packthen switchesto hack ing jetsl Install aup pack Works stan Y connector retractdard 4 cell 5 cell Gel-Cell channel Controls gear doorpacks Battery packs can servos time re-differentcapacitylikeal200 tract switch used up ordown geardoors openforafew& 600 Solid state design seconds close agajul Delaytimeisadjustablefromuses MOSFET transistors add own switch har 1-9 seconds 1 5x1 5x3/4 1/2 oz $3995nesses wiring 1 5x1 5x3/4 Weighs 8 oz $4995 GLITCH Buster Optically isolate 6 chan nels use separate bat tery pack servo power Totally eliminates glitching caused heavy duty servos long leads can use 4 5 6 cells servo side extra powerand speed Requires insianalion oryourown runiouno servo leads Compatible PCM radioul Used Reno Racers NASA tool 15x15x3/4 Wt 8 oz 4405 Mini-Max Throttle microprocessor-con trolled super-small MINIMAX features high-rate no adjustment auto-setup softstart brake throttle-guard wontutart armed stick position motor-off tail safe extensive glitch fil ter software Designed 1-16 ceiis 0 30 amps j20 amps peak lncludesservoconnectorandSERMOSonnectors Measures lxi 5x5 ht 1 oz Introductory price $7995 capacitance associated physical optocoupler printed wiring board its mounted Usually about two four picoFaradsrepresenting several hundred Ohms 72 MHz optocoupling very good what does have actually seen cases some residue glitching via small capacitance could reduced eliminated addition chokes discussed last montha sort double safety will Heres hoping above has cleared up some confusion shared some lessknown information besides Continuing last three columns discussion microprocessor-controlinduced glitching several photos month shown results work done since writing last column Photos Two Three own oscilloscope displaying radio frequency spectrum about 1 MHz left about 100 MHz right photos tall spike leftmost edge can ignored its zero beat spectrum analyzer probe using Photo spike near middle pix 534 MHz RC signal its right Channel 50 RC signal markers appear Photos Two Three also can see whats happening Moving Photo Two large noise pileup electrical trash noise receiver lead certaln new preproduction speed control noise caused microprocessor motor controller clearly encompasses 534 RC frequency interference fully explains experience lots inflight hits test product Note also no junk showing near Ch 50 marker Moving Photo Three observe trash pile shifted left RC signal same speed control now Ive installed chokes discussed last month control-to-receiver lead photo fully explains why/how chokes work well reducing in-flight glitching effect stop trash extending RC frequency area noise energy still piled higher lower frequency photos also reasonably show flying control 72 MHz equipment nearly same with/without chokes no electrical junk anyway Indeed FM may have nothing better performance previously reported have kind photographic data several new speed controls Ive sharing info various manufacturers involved sample photos show trouble 50 MHz frequencies sort thing could actually happen anywhereincluding 72 MHz spots Given observations Ive encouraging manufacturers invest low-cost Spectrum Probe assist design new products Incidentally photos got taken borrowed Probe just see what could see did ever am doing Its part own Electric aeromodeling fun case Ive also told some appreciative industry folks really very worthwhile Sure makes feel gooood hope find too Meanwhile please enclose SASE correspondence youd like reply go forth enjoy very best possible Springtime Electric Landings everyone odel Aviation CARS * MINIATURE * GAMES U U THE EAST COAST * e HOBBY SHOW m I22403 Miuxion Hum Lu Yorbu Lindu tA 92687 Info 714-692-1393 Orders 800-645-8978 $300 Shipping ling per order Credit Cards accepted