Radio Control: Electrics

RADIO CONTROL ELECTRICS THIS MONTHS topics include two meet announcements followup motor mount some photo detail emphasis function discussed last month Mega-motor substitute developmental slow charger large packs Dick Miller sent announcement Bassett/Brown Commemorative meet June 28-29 near Reading PA meet sponsored Cocalico Prop Dusters one-design event Miss Philadelphia OT Theres lots activity planned opportunities compete including Electric option Write Contest Director Paul Ahnert 442 West Marion Lititz PA 17543 Tim McDonough 127 5 Oaklane Road Springfield IL 62707 Tel [217] 523 8625 wrote tell Land Lincoln Electric Fly also June 28-29 meet sponsored Knights Air RC Club will held club field near Springfield Tim tells plenty whole family enjoy immediate area suggests good family vacation opportunity can provide detail everyone interested Tim can also reached tpm@inwnet http/wwwinwnet/tpm Tim tells received lot positive response MA column mentioning proposal Electric event 1997 referenced column May 1996 reacted sufficiently multi-interest club went photo shows slick motor mount plate Tim offers use Speed 400 motors Its laser-cut 1A6 plywood plate mounting cooling holes accurately cut 400-size motors plate oversize can trimmed fit installation needs Cost $5 pack three plus associated metric mounting screws heard nothing good comments KRC 96 about product rapidly growing Speed 400 crowd Two photos offer some followup shaped throttle-response circuit discussed last month transmitter circuit addition greatly improved throttle feel Im really excited about device its operation Ive opportunity photograph home-brew circuit its installation MicroPro transmitter Its relatively simple circuit assemblyand simple install merely covered circuit board assembly heat-shrink tubing New Creations RIC Velcroed resulting package near transmitter battery wiring goes stick pot emphasis control top transmitter housing encoder circuit stick pot connected topical area time goes ongoing saga Kyosho Mega Monster Reverse motor has come conclusionI think May 1996 column several subsequent described excellent E-Motion flying experiencing inexpensive motor recently 1/97 advise motor discontinued replacement forthcoming new motor called Magnetic Mayhem Reverse listed Tower Hobbies catalog photo shows new product alongside last remaining new Megaboth running break-in mode motors same size weight rear end bell new seems configured permit better brush cooling addition new has cooling slits housing real question compare performance-wise outfitted both new motors new Leisure 381 radial gear drives E-Motion installation Weight drive four inches wire Sermos connectors just 83 ounces did some bench testing few words about bench-testing motors Anyone has done probably knows can quickly become perplexing has make test choices might should driven application mind Choices include props gear ratio cell count Data demands rise quickly number choices made theres frenzy associated data recording fly including voltage current rpm have move quickly because soon run data pack begins deplete cant repeat exactly what just finished measuring As testing continues motor heats up tends alter performance resultsso may get repeatable data wanted Fortunately have rely batteries major source annoyance goes away use high-power fully Home-brew throttle-stick response shaper circuit discussed inCircuit enclosed heat-shrink tubing attached Velcro April 1997 columngreatly improved feelto inside back MicroPro transmitter May1997 91 Laser-cut plywood mounting plate Speed 400-size motors available Tim McDonough address information text adjustable regulated power supply can dial up voltage represent cell count case interested representing 10-cell pack also interested prop original 13 x 71/2 Sonic-Tronics folder E-Motion limited choices simplified undertaking set up motor time test stand prepared run up adjustable supply DVM Digital Volt Meter connected motor brushes another reading motor current shunt third reading tack output cranked up supply 11 volts right brush terminals voltage about right 10-cell SCRC pack average over much flight use pack will provide somewhat higher voltage beginning flight less toward end got 5875 rpm Mega 5975 rpm Mayhem Based sample new Mayhem turns up bit fasterbut what penalty no penalty rather bonus current drains 194 amps Mega 186 amps Mayhem power input levels 213 205 watts respectively appears motors close propped performance Mayhem having performance edge remember sample So far Ive able get both motors air though expect flight performance very close Whether Mayhem holds up well Mega flight after flight Ill have wait until summertime find out now would hesitate buy Mayhems application 92 Model Aviation ere will find P Catalog $1000 ou will find delay! y An early Mega Monster Reverse motor left newer simple overnight charger large-cell-count motor packs based Magnetic Mayhem Reverse right Radio Shack plug-in module Iuaing ig tips rsand o refresh whether up-ianked pilot -Step Shopping Place Fbr Cs Fileotries 4ccesscri Magnetic Mayhem Reverse motor costs about $23 gear drive about $22 economy power system does extremely well described application Despite fact brushes replaceable still consider motor throwawaythe bearings bushings Another limitation fixed timing can get past matters can get awful lot good flying very little money relatively speaking Almost airplane can accommodate 10 cells 13 x 7Y2 folder weighs about 54 ounces loadings under about 20 ozIsq would very well power system apply Rule Thumb power required lust fly 54-ounce airplane 20ounce load would need 54/16 x 20 atts lust fly far good enoughuseful comparison purposes much else apply suggestion 50 watts per pound good flight power needed would 50 x 54/16 watts 200 watts average system clearly does joband long flights too What other good combinations possible using motor configurations would impractical 13-inch prop reasonably sized model suitable landing gear would permit CARBON OR KEVLAR MAT 2 4 Sozisqyd CARBON FIBER NO FRAY TAPE CARBON FIBER RIBBON KEVLAR FABRIC TAPE KEVLAR FABRIC 17 ozIsq yd E-Z LAM Epoxy Laminating Resin Send SASE for complete listing products Composite Products 14210 balM Dr S Laan&o tO 94571 3522022 FAX 510 3522021 Lightweight Materials ZThe Source ForA May1997 93 VACUUM BAGGING SUPPLIES CARBON FIBER LAMINATES 007 014 022 & 030 Thick NROHACELI Light Rigid Foam 12 3mm GLASS CLOTH 58 oz/sq yd 75 15 20 30 & 4 oz ADAPTOR THROW AWAY YOUR cOLLErS cHucK & WRENCH USE OUR ADAPTOR & KEYLESS cHuck IOTO 0102 CAP ON ALL DREME POWER TOOLS INCLUDING [~IMna___FLEXIBLE SHAFT RUNS 100% TRUE & CONCENtRIC AT FULl RRM NO 501 ADAPTORKEYLESS CHUCKS1895 800 296 DO NOT NEED ADAPTOR TO USE KEYLEBS CHUCK STEEL SAW AND ARBOR HARDENED GROOM & POUSHED STEEL USED FOR CEIIlUG PIASTIc WOoD SOFT METAlS LEXAN PLECIGIASS & ETC AVAILASIE IN 006006 010 012014 010 018 5020 IS 025 028032 ThCKI4ESS NO 602 R$800 V OOFTS02E DIAMETER 04075 Ek NO503PX014X1/46AW$60O OUR SAWS OtLY WORK WITH OUR ARBOR ABRASIVE CUT-OFF BLADES FIBERGLASS REINFORCED-RESISTS BREAKAGE-CUT STEEL BRASS COPPER ALUMINUM AND OTHER METALS ALL BLADES 1/32 THICK SIZE NO PRICE SIZE NO PRICE 1 l/Z AB2 100 3 ABS 150 SAWS AND CUT-OFF BLADES ONLY WOW WITH OW ARBOR NO NEED FOR PINT OR MATCHES MICRO f JUST PRESS THE P1020 SELF-STAR11NG BUTTON FOR MICRO SIZE ADJUSTABLE SELF ElFLAME THAT BURFE AT 237r FOR UP TC STARTINGg~DFSRAYS ON STANDARD TORCHREFILLABLE TANK FITS COMFORTABLY OF VOW HAND AND S MT770...- MADE OF HIGH IMPACT RUBBER WHICH Blow TorchALLOWS FOR SAFE NON-SUP DRIP twill , 01 bBln $3500 SUPPUED WITH CAN OF BUTANE MT771 Butane 5 5000 CATALOG $380- WHFN DROtRING PPD ADD $650 FREE WITH ORDERCOD ADD $950 EASTERN TOOL & SUPPLY co DBDtRS 212-925-1006 212-226-2149 149 GRAND ST NYC NY 10013FAX 212-225-1010 diameter Revolt example smaller-diameter prop would make nearly impossible get 200 watts having thoroughly unrealistic pitch smaller-diameter prop change gear ratio turn smaller prop faster could get back nominal power level near future Im going explore other reasonable combinations prop size gear ratio operating 10-cell count 200-watt input-power level can great deal very nice flying variety model designs 200 watts choice 10 cells permits nice motor current less 20 amps seems good upper limit car motors reader input put onto Mega motor first place normally would experiment car motors power system has worked out very well over time general endorsement car motors E-flight purposes car motors Im familiar would nearly successful air Mega Mayhem no substitute morecostly high-quality products such folks Astro Aveox assure have far latter products use car motors Something everyone its fun anyway j Introducing 1$ RC Video Show STICKMAS TEAS RR1 Box 1179I Fort Ann NY 12827 P Thpcs vi-is Fornia Tax Shipping ExtraI hint -Airs ar Ivers frc -I June 1993 column photo some then-new personal electronic projects Electric using still routine use home-brew adjustable slow charger overnight charging/equalization large-cell-count motor packs best knowledge no simple low-cost product fills need grew reluctant publish details because assembly involved internal line cord wiring connections modelers could comfortably handle aspect felt some may some risk area dragged feet periodically get mail asking charger described long ago now have simplified version eliminates having deal power line cord wiring approach based familiar plug-in power supply intended use telephone answering machines readily available Radio Shack other sources lowvoltage output wires connect directly fairly simple circuit develops constant 150-160 mA output current charging 22 cells current steady regardless cell count current level chosen suitable motor pack capacities either 14 Ah SCRs 17 Ah SCRCs Its simple set circuit up other currents resistor change need Im looking versions some output adjustability adding multiple outputs charging pack time Im also trying keep design Radio Shack ease task getting parts expect have followupand possibly feature presentationon topic Please continue enjoying powerful-but-quiet thrill joy pure exhilaration Electric flight Please enclose SASE correspondence youd like reply & Field Support tor RC Enthusiast Engineered strength durability & compact storage 11 lbS lD5 4U1D5I K-Bencn 15 lbs 200 lbsna$10500 Stops 16 lbs nana$ 2300 pr] K-System Package engine operation$20700 complete KSystem reqired engine operation MO residents add 645% sales tax TO ORDERrI Call Toll Free 800-700-9884 Fax 417-626-7414 May 1997 97 EtectroJynamws inc 1-800-337-1636 O _____________-I 31185 SCHOOLCRAFT LIVONIA MI 48150 Info313 422-5420 Fax 313 422-5338

RADIO CONTROL ELECTRICS THIS MONTHS topics include two meet announcements followup motor mount some photo detail emphasis function discussed last month Mega-motor substitute developmental slow charger large packs Dick Miller sent announcement Bassett/Brown Commemorative meet June 28-29 near Reading PA meet sponsored Cocalico Prop Dusters one-design event Miss Philadelphia OT Theres lots activity planned opportunities compete including Electric option Write Contest Director Paul Ahnert 442 West Marion Lititz PA 17543 Tim McDonough 127 5 Oaklane Road Springfield IL 62707 Tel [217] 523 8625 wrote tell Land Lincoln Electric Fly also June 28-29 meet sponsored Knights Air RC Club will held club field near Springfield Tim tells plenty whole family enjoy immediate area suggests good family vacation opportunity can provide detail everyone interested Tim can also reached tpm@inwnet http/wwwinwnet/tpm Tim tells received lot positive response MA column mentioning proposal Electric event 1997 referenced column May 1996 reacted sufficiently multi-interest club went photo shows slick motor mount plate Tim offers use Speed 400 motors Its laser-cut 1A6 plywood plate mounting cooling holes accurately cut 400-size motors plate oversize can trimmed fit installation needs Cost $5 pack three plus associated metric mounting screws heard nothing good comments KRC 96 about product rapidly growing Speed 400 crowd Two photos offer some followup shaped throttle-response circuit discussed last month transmitter circuit addition greatly improved throttle feel Im really excited about device its operation Ive opportunity photograph home-brew circuit its installation MicroPro transmitter Its relatively simple circuit assemblyand simple install merely covered circuit board assembly heat-shrink tubing New Creations RIC Velcroed resulting package near transmitter battery wiring goes stick pot emphasis control top transmitter housing encoder circuit stick pot connected topical area time goes ongoing saga Kyosho Mega Monster Reverse motor has come conclusionI think May 1996 column several subsequent described excellent E-Motion flying experiencing inexpensive motor recently 1/97 advise motor discontinued replacement forthcoming new motor called Magnetic Mayhem Reverse listed Tower Hobbies catalog photo shows new product alongside last remaining new Megaboth running break-in mode motors same size weight rear end bell new seems configured permit better brush cooling addition new has cooling slits housing real question compare performance-wise outfitted both new motors new Leisure 381 radial gear drives E-Motion installation Weight drive four inches wire Sermos connectors just 83 ounces did some bench testing few words about bench-testing motors Anyone has done probably knows can quickly become perplexing has make test choices might should driven application mind Choices include props gear ratio cell count Data demands rise quickly number choices made theres frenzy associated data recording fly including voltage current rpm have move quickly because soon run data pack begins deplete cant repeat exactly what just finished measuring As testing continues motor heats up tends alter performance resultsso may get repeatable data wanted Fortunately have rely batteries major source annoyance goes away use high-power fully Home-brew throttle-stick response shaper circuit discussed inCircuit enclosed heat-shrink tubing attached Velcro April 1997 columngreatly improved feelto inside back MicroPro transmitter May1997 91 Laser-cut plywood mounting plate Speed 400-size motors available Tim McDonough address information text adjustable regulated power supply can dial up voltage represent cell count case interested representing 10-cell pack also interested prop original 13 x 71/2 Sonic-Tronics folder E-Motion limited choices simplified undertaking set up motor time test stand prepared run up adjustable supply DVM Digital Volt Meter connected motor brushes another reading motor current shunt third reading tack output cranked up supply 11 volts right brush terminals voltage about right 10-cell SCRC pack average over much flight use pack will provide somewhat higher voltage beginning flight less toward end got 5875 rpm Mega 5975 rpm Mayhem Based sample new Mayhem turns up bit fasterbut what penalty no penalty rather bonus current drains 194 amps Mega 186 amps Mayhem power input levels 213 205 watts respectively appears motors close propped performance Mayhem having performance edge remember sample So far Ive able get both motors air though expect flight performance very close Whether Mayhem holds up well Mega flight after flight Ill have wait until summertime find out now would hesitate buy Mayhems application 92 Model Aviation ere will find P Catalog $1000 ou will find delay! y An early Mega Monster Reverse motor left newer simple overnight charger large-cell-count motor packs based Magnetic Mayhem Reverse right Radio Shack plug-in module Iuaing ig tips rsand o refresh whether up-ianked pilot -Step Shopping Place Fbr Cs Fileotries 4ccesscri Magnetic Mayhem Reverse motor costs about $23 gear drive about $22 economy power system does extremely well described application Despite fact brushes replaceable still consider motor throwawaythe bearings bushings Another limitation fixed timing can get past matters can get awful lot good flying very little money relatively speaking Almost airplane can accommodate 10 cells 13 x 7Y2 folder weighs about 54 ounces loadings under about 20 ozIsq would very well power system apply Rule Thumb power required lust fly 54-ounce airplane 20ounce load would need 54/16 x 20 atts lust fly far good enoughuseful comparison purposes much else apply suggestion 50 watts per pound good flight power needed would 50 x 54/16 watts 200 watts average system clearly does joband long flights too What other good combinations possible using motor configurations would impractical 13-inch prop reasonably sized model suitable landing gear would permit CARBON OR KEVLAR MAT 2 4 Sozisqyd CARBON FIBER NO FRAY TAPE CARBON FIBER RIBBON KEVLAR FABRIC TAPE KEVLAR FABRIC 17 ozIsq yd E-Z LAM Epoxy Laminating Resin Send SASE for complete listing products Composite Products 14210 balM Dr S Laan&o tO 94571 3522022 FAX 510 3522021 Lightweight Materials ZThe Source ForA May1997 93 VACUUM BAGGING SUPPLIES CARBON FIBER LAMINATES 007 014 022 & 030 Thick NROHACELI Light Rigid Foam 12 3mm GLASS CLOTH 58 oz/sq yd 75 15 20 30 & 4 oz ADAPTOR THROW AWAY YOUR cOLLErS cHucK & WRENCH USE OUR ADAPTOR & KEYLESS cHuck IOTO 0102 CAP ON ALL DREME POWER TOOLS INCLUDING [~IMna___FLEXIBLE SHAFT RUNS 100% TRUE & CONCENtRIC AT FULl RRM NO 501 ADAPTORKEYLESS CHUCKS1895 800 296 DO NOT NEED ADAPTOR TO USE KEYLEBS CHUCK STEEL SAW AND ARBOR HARDENED GROOM & POUSHED STEEL USED FOR CEIIlUG PIASTIc WOoD SOFT METAlS LEXAN PLECIGIASS & ETC AVAILASIE IN 006006 010 012014 010 018 5020 IS 025 028032 ThCKI4ESS NO 602 R$800 V OOFTS02E DIAMETER 04075 Ek NO503PX014X1/46AW$60O OUR SAWS OtLY WORK WITH OUR ARBOR ABRASIVE CUT-OFF BLADES FIBERGLASS REINFORCED-RESISTS BREAKAGE-CUT STEEL BRASS COPPER ALUMINUM AND OTHER METALS ALL BLADES 1/32 THICK SIZE NO PRICE SIZE NO PRICE 1 l/Z AB2 100 3 ABS 150 SAWS AND CUT-OFF BLADES ONLY WOW WITH OW ARBOR NO NEED FOR PINT OR MATCHES MICRO f JUST PRESS THE P1020 SELF-STAR11NG BUTTON FOR MICRO SIZE ADJUSTABLE SELF ElFLAME THAT BURFE AT 237r FOR UP TC STARTINGg~DFSRAYS ON STANDARD TORCHREFILLABLE TANK FITS COMFORTABLY OF VOW HAND AND S MT770...- MADE OF HIGH IMPACT RUBBER WHICH Blow TorchALLOWS FOR SAFE NON-SUP DRIP twill , 01 bBln $3500 SUPPUED WITH CAN OF BUTANE MT771 Butane 5 5000 CATALOG $380- WHFN DROtRING PPD ADD $650 FREE WITH ORDERCOD ADD $950 EASTERN TOOL & SUPPLY co DBDtRS 212-925-1006 212-226-2149 149 GRAND ST NYC NY 10013FAX 212-225-1010 diameter Revolt example smaller-diameter prop would make nearly impossible get 200 watts having thoroughly unrealistic pitch smaller-diameter prop change gear ratio turn smaller prop faster could get back nominal power level near future Im going explore other reasonable combinations prop size gear ratio operating 10-cell count 200-watt input-power level can great deal very nice flying variety model designs 200 watts choice 10 cells permits nice motor current less 20 amps seems good upper limit car motors reader input put onto Mega motor first place normally would experiment car motors power system has worked out very well over time general endorsement car motors E-flight purposes car motors Im familiar would nearly successful air Mega Mayhem no substitute morecostly high-quality products such folks Astro Aveox assure have far latter products use car motors Something everyone its fun anyway j Introducing 1$ RC Video Show STICKMAS TEAS RR1 Box 1179I Fort Ann NY 12827 P Thpcs vi-is Fornia Tax Shipping ExtraI hint -Airs ar Ivers frc -I June 1993 column photo some then-new personal electronic projects Electric using still routine use home-brew adjustable slow charger overnight charging/equalization large-cell-count motor packs best knowledge no simple low-cost product fills need grew reluctant publish details because assembly involved internal line cord wiring connections modelers could comfortably handle aspect felt some may some risk area dragged feet periodically get mail asking charger described long ago now have simplified version eliminates having deal power line cord wiring approach based familiar plug-in power supply intended use telephone answering machines readily available Radio Shack other sources lowvoltage output wires connect directly fairly simple circuit develops constant 150-160 mA output current charging 22 cells current steady regardless cell count current level chosen suitable motor pack capacities either 14 Ah SCRs 17 Ah SCRCs Its simple set circuit up other currents resistor change need Im looking versions some output adjustability adding multiple outputs charging pack time Im also trying keep design Radio Shack ease task getting parts expect have followupand possibly feature presentationon topic Please continue enjoying powerful-but-quiet thrill joy pure exhilaration Electric flight Please enclose SASE correspondence youd like reply & Field Support tor RC Enthusiast Engineered strength durability & compact storage 11 lbS lD5 4U1D5I K-Bencn 15 lbs 200 lbsna$10500 Stops 16 lbs nana$ 2300 pr] K-System Package engine operation$20700 complete KSystem reqired engine operation MO residents add 645% sales tax TO ORDERrI Call Toll Free 800-700-9884 Fax 417-626-7414 May 1997 97 EtectroJynamws inc 1-800-337-1636 O _____________-I 31185 SCHOOLCRAFT LIVONIA MI 48150 Info313 422-5420 Fax 313 422-5338