RADIO CONTROL ELECTRICS THIS MONTHS topics include some new E-products missing Mega motor some charger/charging discussion Harris Design 2000 NW 84th Ave Ankeny IA 50021 Tel 515 965-5942 offering new covering material called ThermalSpana fabric look feel silk silkspan should particular interest E-OT modelers others appreciate classic look product direct-mail-marketed 14-inch widths 16 feet long $10 hipping handling Wise Owl Worldwide Publications 4314 W 238th St Torrance CA 90505-4509 Tel 310 375-6258 North American subscription agency number British publishing companies handle several magazines interest Silent Flight has really neat feature including full size plans magazine Wise Owl can supply back issues books some kits greatly simplifies ordering foreign publications since can pay US currency credit card Hobby Supply South 5060 Glade Road Acworth GA 30101 Tel 770 974-0843 carries extensive kit modeling supplies inventory including E-kits kits suitable E-conversion E supplies catalog $4 Hobby Lobby 5614 Franldin Pike Circle Brentwood TN 37027 Tel 615 373-1444 now has catalog #28 available $250 As historically case includes even-more-expanded Electric products section continuing E- growth makes wonder just folks find much variety E-models featured catalog available pre built some can purchased complete outfits including airplane motor battery charger speed control video shows Timothy McDonough 127 S Oaklane Rd Springfield IL 62707 Tel 217 523-8625 can supply some really neat laser-cut motor mount plates popular Speed 400 ferrite motors cut 1A6 plywood feature super-sharp holes properly located motor mount screws motor front end bell air intakes 1 inches square can trimmed outline suited model three pack plus metric mounting screws for $5 per package workmanship very nice product well worth price Tim guy supplies No Noise T shirts described 5/96 column discussed E-Motion design several times recent columns once mentioned Kyosho Mega 360 Reverse motor Leisure gear drive combination used plane ongoing discussion two glitches crept First Mega appeared MCGA several times 9/96 column Next troublesome fact specified motor has dropped product no longer carried Tower did know wrote reference discussions found out other local modelers tried order some Ive received reader input reporting same finding asking alternatives regret circumstanceespecially given wanted buy myself As alternate understanding replacement motor types will available wont recommend until try same application myself will report outcome future column continue fly E-MotionlMega motor/Leisure drive/Sonic-Tronics 13 x 71/2 10-cell system described continuing satisfaction honest Im now experiencing whole new Electric sensation too long flight time unending 15-minute-plus flights getting tiring never thought Id see day Id feel Electric flies too long Charging motor batteries ongoing subject reader mail varied field 100 Model Aviation e Lazy Bee Gus Janger Philadelphia PA has geared Astro 40 21 cells RC truck shock absorbers used support Lazy Bees landing gear axle six-inch Trexler balloon wheels Top panel view on/off switch located next existing circu itbreaker button Astro 11 OD charger see text NEUJWU4WWLFWEUIUZ4YEUIWIWiEUI1W51L4VWELUIWUL Matched 1700 SCRC md Cells$500 SANYO N1700 SCRC md Cells$450 SANYO N1400 SCR md Cells$300 SANYO Ni 000 SCR lnd Cells$350 SANYO N800 AR Ind Cells$350 SANYO KR600 AE Ind Cells$250 SANYO N270 AA md Cells$250 SANYO 600 AA Rechargeable$1 50 SAFT Full C Rechargeable Batteries$100 Ea 4 Cell 270 AA Receiver Pk$1000 5 Cell 1000 AE Receiver Pk$1800 Connectors$300 PR BARS AND BRAIDS AVAILABLE experiences Related topics include charging products use battery funnies etc few January 96 column described then-new Astro 11 OD charger several columns since referenced recommended product 1 lOD peak detecting charger use up 18 cells up about 5 amps charge current feelings about product continue highmine continues work great column also noted two disappointments 11 OD lack beep signal completion charge have keep checking built-in display note charging completed also lamented lack power switch since keep chargers internally wired within minivan instead clipping em onto battery under hood switch would definite plus case too eliminating possibility dangerous sparking vicinity auto battery clips connected Ive now fixed two matters illustrated month photos show modification 1 lOD installed on/off power switch front panel switch 20-amp auto switch readily found auto-parts stores fits nicely panel alongside breaker reset button Installation requires mounting hole drilled panel shown rerouting positive red input power line wire through switch used same heavy gauge wire original wire about gauge will work fineonly about 2/2 inches needed Work carefully drilling solderingmake sure no free metal solder particles floating about threaten internal circuitry also replaced charger output lead longer lamp cord/charge connector field use convenience Normally charger sits inside rear minivan airplane ground outside use about eight feet 18-gauge lamp cord reach airplane also installed some Ty-Wraps strain reliefs input Aveox High Performance Brushless DC Motors Aveox proud introduce Aveox Infinity Charger/Cycler Specs 1-30 cells 1-99 cycles user adjustable 100 mab-SA charge/discharge rates recalls lastS cycles mah12V input microprocessor controlled month $16995 Aveox has complete line direct drive geared motcrs compettor sport flyer starting low $26995 motor/controller system also carry full line accessories plane kits including Aveox Molded Limit new 2t oz 12 MOSFET Hint Perfermence Micreprocessor Czech-MP JET 061 102 Model Aviation ,ogur anu ontro rr d]iLvIuoIlnas lu vvesiiue vllluge UACI6OL uiu-s-ucn proudly made USA htp//wwwuveoxcom emuillo 112252411@tompuservecom Plain Bearing Glow 5000 5600 6000 Ball Bearing Glow 650070007500 Ball Bearing Diesel 650070007500 engines include silencer Add $500 P&H per Order Vice & M/C OK adds ee dcaea aa carison Engine Imports- 814 E Marconi Ave Phoenix Az USA 85022- Ph/ Fax 602-863-1684 output power leads placed catch just inside charger housing prevent unnecessary pulls internal wire connections times trip charge wire Ive field-testing home-brew accessory used conjunction own 1 lOD beeper signals end charge So far has working very well Ill discuss detail future subject charging some reminders Constant-output current chargers like 1 lOD others can cause unexpected trouble used source battery thats good condition going dead operation such chargers maintain output charge current almost no matter what circuitry such chargers designed charge wide variety cell counts state charge almost no matter condition source auto battery given charge-current value motor pack being charged gradually reaches full its terminal voltage rises charger keeps right pumping its set current value output power charger goes up its input power demand goes up too As terminal voltage auto battery drops continued use current demand placed nonstop currentpumping charger goes up satisfy input-power requirements charger Eventually auto battery terminal voltage tends lowsay 11 volts lessthe charger input current demand may get high enough trip breaker damage charger technically inclined description above essentially negative resistance negative resistor would device such lowering applied voltage would cause current through increase Such passive device nonexistent active electronics can made appear like such component constant-current output charger appears its input leads lowering source voltage causes corresponding TECHNICAL INC Largest Stocking Distributor SA$JVO Batteries Call Competitive Pricing FREE CATALOG Receiver & Transmitter Packs ops Camcorder Cellular Sealed Lead Acid Lithium & Immediate Delivery om Assemblies nical Support Production Facilities 301 Central Park Drive ord FL 32771 New Location Same Owner Fax 407-321-3208 email tnrbattery@aolcom 0O NEW Guide Computer Radio Control Systems computer radios Don Edberg Futabas 9Z/8U16X manual author & RGM columnist 190 pgs $18* postpd Explained work c set-up ming em plane copter ial functions ustom mixing examples order/info Dynamic Modelling 4922-3D Rochelle Ave Irvine CA 92604 1-714-552-1812 *CaIIf add $140 VISA/MC OK foreign S&H write Email 7241 72067@compuservecom January1997 105 800-3460601 Web http//wwwbatterystorecom D & 1236330-877-1445 hiService & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzers Endorsd AMA1 RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance ExtraUPSU S MailCODs z t home page http//wwwdnleleclronicscom Email david@dnleIectronicscom jayne@dnjelectronics AMA #256123ARRLWB8VSQ E-Z BILT WWII Pedal Planes 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MORE ACCESSORIES PARTS CUSTOM INSTALLATIONI SEND $2 FOR PRICE UST LItMOI crrCc ncrnraa IMQrnr rrnflNFd increase input current behavior quickly takes destructive proportions sort silly limit zero volts would imply infinite current nonsense over some range diminishing applied voltage associated input current might does reach damaging levels Some local modelers use separate car battery power chargers un flightline state charge batteries often gets very lowthen chargers get trouble flying friend has replaced power MOSFETS charger three times before asking always seem pop source battery gets low using separate auto batteries flightline wary state charge using auto battery also wary its state charge latter case potentially punish charger risk trip home well charger know designed reduce kinds problems SR Smart Charger/Cycler has programmable setting shut down choice source auto battery voltage fine featureI use two products lot flying too future column Ill detail E installation own vehicle recently replaced aging minivan E-flying support system installation over again Basically routed heavy cable vehicle battery through inside rear van end terminates bank Sermos connector pairs plug chargers other flying accessories photographed details will able share specifics Some time-proven conveniences would likely prove applicable vehicle Lets take look back time motor battery charging Longtime readers have 106 Model Aviation 5 PLus SHIPPING & HANDLING Worlds Finest Laser Cut Rubber Powered Free Flight Scale Kits worlds leader Laser Cut Model Aircraft Kitsnerr kIt features finest LASER CUT BALSA PARTS Contest Rubber Detailed Computer Drawn PlansEngineering Complete Hardeare Pack Authentic Watersllde Decafs Molded Plastic Propeller Real Colored TIssue Corporation Light WeIght Wheels Complete Step L Step BuIldIng Instrudlons Please check local hobby dealer first kIts available better hobby shops around world1431 ChSflOO Suite #3 Full Line catalog $200 Add $460 shipping kitOverseas orders add 20%FL residents add 6% sales tax Tltusvilie FL 32780 KMade USADealer inquiree invitedt407 264-24882 noticed change view peakdetecting charging recent years recent years have adopted approach strong advocate timed-charge techniquenow diminished popularity relatively slow change because earlier peak chargers just did seem perform well reliably found untrustworthy could always trust timed charge long began empty pack pumped safe amount chargecontrolled chargers built-in timer now peak chargers have improved greatly very reliable Batteries have also improved especially comes use matched cells within pack Because things peak-detecting chargers now almost ever use Almost Yes still have timed charger installed minivan still times using better least convenient occasions motor packs may very depleted charge really empty have unused long periods time terminal behavior during charge can actually trick peak-detecting chargers Such packs can false peak cause charger shut down long before pack charged Packs such may actually display terminal voltage depression early charge cyclejust minutes after commencing charge terminal voltage drop also what happens just following full charge Such depression what peak chargers use determine full charge condition shut down Thus name false peak timed charger cant tricked such battery behavior practice Ill use timed charger such packs first 10 minutes change peak charger complete charging process find two-step procedure much better putting up repetitive false peaks require restarts peak-detector chargers So ends column Please enclose SASE correspondence youd like reply enjoy wintertime anytime E-flying ii - DAILY II 4338 Austin Blvd Island Park NY 11558 516-431-4127 518-889-2682 INCLUDEUfl I3/4PI 8s10$80$110I IloslO$85$115I WE MAISJFACIURE & SToat SEVER AL OThER SYSTEMS & HAVE RIL LHE OF ACCESEORIES ALL WITh ThE VENDOR H MN CALL FAX OR MAE US TO PLACE YOUR ORDER OR TO RECEIVE YOUR FREE CATALOG -S F1NCLUDEfl I3/4PI 8x10$95$130I 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