RADIO CONTROL HELICOPTERS IIm OW MOST OF THE COUNTRY out gnps winter thoughts again returning flying helicopters However did perform thorough end-of-flying-season maintenance inspection favorite machine now time take close look lucky enough have good flying weather year round its still good idea give helicopter thorough inspection make sure its ready summer helicopter will same require same attention area some basics apply helicopters Bearings Helicopters use bearings provide smooth rolling surface high rpm under great load Im no different anyone else just expect continue doing excellent job further attention other few drops oil now So helicopter has given flying seasons service now may good time inspect bearings replace worn feel gritty spin Before start disassembly process aware have two maintenance alternatives method would disassemble various parts containing bearings decide need replaced advantage method purchase bearings needed disadvantage have keep parts helicopter disassembled state until new bearings arrive Another option preorder bearings think will need replaced have available work prefer option since know will have everything ready get chance tear helicopter down some bearings decide change keep new ones spares later use like change out high wear/load bearings whether appear need changing idea will save later problem keep helicopter flying longer top shape first thing look blow-up diagram helicopter identify areas helicopter will require disassembly get various bearings Once identify bearings think will need replaced can ordered manufacturer/distributor bearing supply like Boca Bearing 7040W Palmetto Park Rd Suite 2304 Boca Raton FL 33433 Owner Allen Baum very knowledgeable person forms bearings did tell him make model helicopter part numbers appeared blow-up diagram knew exactly what needed also like disassemble engines periodically replace bearings well Allen has bearings stock will ever need Batteries Radio equipment has come long way past few years give us computer technology programming reliability lost batteries let us down flying So have checked transmitter receiver batteries lately two checks will increase confidence level items Cycling testtake fully charged battery pack discharge known rate time takes discharge calculate capacity pack mAh Compare stated capacity pack see capacity has lost over time capacity checks out everything fine what does handy soldering iron can get exactly replacement battery cells may want inspect cell voltmeter see defective simply replace cells However have pessimistic point view feel cells bad whatever reason others soon follow So just cut connector off pack either use doorstop bring recycling center accepts batteries Dendrite check Dendrites tiny whiskerlike growths battery cause internal shorting An easy way check pack dendrites first charge immediately cycle battery pack determine its capacity mentioned above battery tests good fully charge again let sit few days Ni-Cds should selfdischarge about 1% 2% day after five days should lose 5% 10% its capacity After five days cycle battery pack again determine its capacity its 90% previous reading fine what now shows 75% capacity after sitting 5 days means have dreaded dendrites No three people can come agreement battery pack should replaced due dendrites decision up least will let know have also believe dendrites can cut quick-charging charging pulse charger such 92 Model Aviation opace Cycler/Charger small easy use has LEDs blink show battery capacity down 1 mAh Hitecs Multi Charge-A-Matic works 12V lets select charge/discharge parameters suit battery pack SR Batteries Smart Charger/Cycler does fast/slow charge/discharge monitoring battery temperature MEN charger since holes dendrites have made battery still will come back time Because batteries have become weakest link radio systems several new products have come market cycle analyze batteries detect possible problems before cause inflight failure Micropace Inc Box 648 Northville MI 48167 has compact AC unit discharges batteries regulated 300 mA rare down 11 volts per cell automatically switches charge mode selectable 55 120 mAh 15 hours automatically reverts trickle charge until ready fly Micropace unique does have digital readout discharge time rather light system blinks display battery capacity down 1 mAh Another battery product have used like very much Hitec RCD Inc 10729 Wheatlands Ave Suite C Santee CA 92071 Multi Charge-A-MaticThis different designed work 12-volt DC source such car battery cigarette lighter through new technology can charge everything 48-volt pack right up 12-volt field battery automatic peak detection charger allows choose charge current automatically reverts trickle charge batteries fully charged Its realty nice fast field-charging batteries just keeping topped off slower rate charge taking advantage nice long flying day An Efficiency Tester also cycles/discharges batteries selectable current choosing displays battery efficiency via multicolored LEDs No discussion batteries would complete mentioning SR Batteries Box 287 Bellport NY 11713 fine line batteries support equipment SR has long known model industry well commercial applications providing highest-quality Ni-Cd batteries available have using years what have invested helicopters both time money would fly am expert batteries SR will happy provide information standard battery packs custom-make specifications SR also manufacturers Smart Charger/Cycler state-of-the-art battery testing needs has too features list basically runs 12-volt source AC-to-DC converter charges 2-28 cells both peak temperature detection An LCD digital display lets adjust fast/slow charge discharge functions whether home flying field simply will let fly bad battery have PC Vencon Technologies Inc 5 Graymar Ave Downsview Ontario M3H 3B5 Canada has Ultimate Battery Analyzer will charge fast-charge automatically revert trickle charger plot everything computer either save print out different parameters available suit particular battery keeping record parameters discharge curve battery pack should able spot battery problems well before could cause problems flight Although two Bsbearings batteriesare important proper operation helicopters routine maintenance lubrication program also needed catch potential problems before develop mishap Start front helicopter look slowly item inspect tightness wear items bearings sliders need drop oil periodically maintain smooth operation doesnt matter use high-priced oil plenty additives just plain 3-InOne oil just use something final point preventative maintenance look closely helicopter clean something does look right chances isnt Simply looking poking will find screws bolts have worked way loose some other part bent slightly worn point should replaced maintenance tips take lot time effort will help enjoy full flying season right around corner rerlermance IPSiCNC MACHINED SPECIAL SPECIALPINNER NUTS RJL K61 best HP RI flAl fl HP RIALUMINUM Made 61 HF llamaS UK 0- ALL THREAD SIZES METRIC & US % Metric 5sB-6x1 -7s1 -Bxl -Bxl25- lOxl25 dSUHF US 6s32 8x32- 1/4s28 5/16x24 1/2 HEXBrsss299Aluminum199 iflSSSltfli St CrEflkcase Easy adi needle5/8 HEXBrsss399Aluminum299 carturetor 3/4 HEX Brsss 449 .. Aluminum Retail Valse $ 2RPRICJ 7/8 HEX Brass 599 .. Aluminum RJL K 61 w/std hush muffler$18995CUSTOM HEAD ADAPTERSiHEXBrass699Aluminum499 FSUPER DFAL~ SO YOU CAN USE STANDARD GLOW PLUGS inHP lair cycle engines IOX 049 HEAD ADAPTER FOR LONG PLUG HP VT tour strokes Made USA Complete 049 HEAD ADAPTER FOR SHORT PLUG 499 carry two year warranty 21 _______TuS stem OX 09 HEAD ADAPTER FOR LONG PLUG699is quietest engine market ______________________________ Includes strap header silicone lost ube & 15 HEAD ADAPTER FOR LONG PLUG 9 rivaled electric mIi espansion chamber pressure tap Inc eases TESTOR McCOY 049 ADAPTER LONG PLUG .All VT engines teature Double ball bearing crankshaft power easily meets sound requirements Tuning in-Diesel Head Conversion CoxBBC bronze brass chrome Valve structions included Great looking Black finish light nor- RJL DIESEL HEAD CONVERSION FOR COX Tee Dee piston/cylinder true chrorr mal estended headers available enginesedallion USE TRUE 0-RING SEALED CONTRA PISTON For9ed&bushed con rod &tary valves Corn lete pipe system.I 0491051 B-$1299 009 $1699 1999High pressure alloy castings i4•-41omt3SSea RII$SMNIVSIA7ELLotsmoreavailablei onal roller bearing supported valve Alma-NO THROTTLE OR MUFFLERHP VT 21 STANDARD HEAD REG295.. 13999 Size Hm5WiUqUHPVT49 STANDARD HEAD ero 289w. 16999 HPVT21 BEARING HEAD . R5O24n95.. 14999 COMPLETE TUNED PIPE SYSTEMjSCHNUERLE PORTHP VT 49 BEARING HEAD . eo 2mw 17999 FOR K&B SPORTSTER 20-28~ P STON/CYL_______________________________________ INCLUDES ALL MOUNTING~SDEEXHAUSTFOR FACTORY PARTS SERVICE AND HARDWARE AND BOOSTSOnly $2999NAPJ15fl7 ff55$3999 POWER 1500 RPMS WITHOUT NOISE INCREASEDIESEL OR GLOW ESELTECHNICAL ASSISTANCE ON ENGINES REAR INTAKE NTAKE IN THIS AD AND THE FOLLOWING $2999 999HB ENGINES KAVAN FK-50 HP ENGINES MU5HERaIREBDMPAIIYgFAwg*IBA END 100 F R 48 PA E CATALOG KRAFT 61 CCX CONOUEST 15 RJL P0 Box 80830 -- San Marino California 91118 SORRY NO CODsTsIPSN 40 HOK ENOiNEE FoRETER ENOINEs 2@RDER TOLL FREEALL CREDIT CARDS ACCEPTEDMcCoy SERIEs 21 stacK HEAD FINNED casE Prices subject 10 change noticeFor parts technical help Call write NO PARTS OR TECHNICAL HELP FROM THIS NUMBER1 imited supply some items ii I,r, 1Sf ping & Handling continental US $400 size order a~inFLN MY V Q Alaska Hawaii & international higher ox 5- SIERRA MADRE CA 91025 LOCAL & INTERNATIONAL 1-81 8-FLY MY RC 3596972California Residents add 825% Sales Tax TELEPHONE 818 3590016 FAx 818-3010-298 May1995 93
Edition: Model Aviation - 1995/05
Page Numbers: 92, 93
RADIO CONTROL HELICOPTERS IIm OW MOST OF THE COUNTRY out gnps winter thoughts again returning flying helicopters However did perform thorough end-of-flying-season maintenance inspection favorite machine now time take close look lucky enough have good flying weather year round its still good idea give helicopter thorough inspection make sure its ready summer helicopter will same require same attention area some basics apply helicopters Bearings Helicopters use bearings provide smooth rolling surface high rpm under great load Im no different anyone else just expect continue doing excellent job further attention other few drops oil now So helicopter has given flying seasons service now may good time inspect bearings replace worn feel gritty spin Before start disassembly process aware have two maintenance alternatives method would disassemble various parts containing bearings decide need replaced advantage method purchase bearings needed disadvantage have keep parts helicopter disassembled state until new bearings arrive Another option preorder bearings think will need replaced have available work prefer option since know will have everything ready get chance tear helicopter down some bearings decide change keep new ones spares later use like change out high wear/load bearings whether appear need changing idea will save later problem keep helicopter flying longer top shape first thing look blow-up diagram helicopter identify areas helicopter will require disassembly get various bearings Once identify bearings think will need replaced can ordered manufacturer/distributor bearing supply like Boca Bearing 7040W Palmetto Park Rd Suite 2304 Boca Raton FL 33433 Owner Allen Baum very knowledgeable person forms bearings did tell him make model helicopter part numbers appeared blow-up diagram knew exactly what needed also like disassemble engines periodically replace bearings well Allen has bearings stock will ever need Batteries Radio equipment has come long way past few years give us computer technology programming reliability lost batteries let us down flying So have checked transmitter receiver batteries lately two checks will increase confidence level items Cycling testtake fully charged battery pack discharge known rate time takes discharge calculate capacity pack mAh Compare stated capacity pack see capacity has lost over time capacity checks out everything fine what does handy soldering iron can get exactly replacement battery cells may want inspect cell voltmeter see defective simply replace cells However have pessimistic point view feel cells bad whatever reason others soon follow So just cut connector off pack either use doorstop bring recycling center accepts batteries Dendrite check Dendrites tiny whiskerlike growths battery cause internal shorting An easy way check pack dendrites first charge immediately cycle battery pack determine its capacity mentioned above battery tests good fully charge again let sit few days Ni-Cds should selfdischarge about 1% 2% day after five days should lose 5% 10% its capacity After five days cycle battery pack again determine its capacity its 90% previous reading fine what now shows 75% capacity after sitting 5 days means have dreaded dendrites No three people can come agreement battery pack should replaced due dendrites decision up least will let know have also believe dendrites can cut quick-charging charging pulse charger such 92 Model Aviation opace Cycler/Charger small easy use has LEDs blink show battery capacity down 1 mAh Hitecs Multi Charge-A-Matic works 12V lets select charge/discharge parameters suit battery pack SR Batteries Smart Charger/Cycler does fast/slow charge/discharge monitoring battery temperature MEN charger since holes dendrites have made battery still will come back time Because batteries have become weakest link radio systems several new products have come market cycle analyze batteries detect possible problems before cause inflight failure Micropace Inc Box 648 Northville MI 48167 has compact AC unit discharges batteries regulated 300 mA rare down 11 volts per cell automatically switches charge mode selectable 55 120 mAh 15 hours automatically reverts trickle charge until ready fly Micropace unique does have digital readout discharge time rather light system blinks display battery capacity down 1 mAh Another battery product have used like very much Hitec RCD Inc 10729 Wheatlands Ave Suite C Santee CA 92071 Multi Charge-A-MaticThis different designed work 12-volt DC source such car battery cigarette lighter through new technology can charge everything 48-volt pack right up 12-volt field battery automatic peak detection charger allows choose charge current automatically reverts trickle charge batteries fully charged Its realty nice fast field-charging batteries just keeping topped off slower rate charge taking advantage nice long flying day An Efficiency Tester also cycles/discharges batteries selectable current choosing displays battery efficiency via multicolored LEDs No discussion batteries would complete mentioning SR Batteries Box 287 Bellport NY 11713 fine line batteries support equipment SR has long known model industry well commercial applications providing highest-quality Ni-Cd batteries available have using years what have invested helicopters both time money would fly am expert batteries SR will happy provide information standard battery packs custom-make specifications SR also manufacturers Smart Charger/Cycler state-of-the-art battery testing needs has too features list basically runs 12-volt source AC-to-DC converter charges 2-28 cells both peak temperature detection An LCD digital display lets adjust fast/slow charge discharge functions whether home flying field simply will let fly bad battery have PC Vencon Technologies Inc 5 Graymar Ave Downsview Ontario M3H 3B5 Canada has Ultimate Battery Analyzer will charge fast-charge automatically revert trickle charger plot everything computer either save print out different parameters available suit particular battery keeping record parameters discharge curve battery pack should able spot battery problems well before could cause problems flight Although two Bsbearings batteriesare important proper operation helicopters routine maintenance lubrication program also needed catch potential problems before develop mishap Start front helicopter look slowly item inspect tightness wear items bearings sliders need drop oil periodically maintain smooth operation doesnt matter use high-priced oil plenty additives just plain 3-InOne oil just use something final point preventative maintenance look closely helicopter clean something does look right chances isnt Simply looking poking will find screws bolts have worked way loose some other part bent slightly worn point should replaced maintenance tips take lot time effort will help enjoy full flying season right around corner rerlermance IPSiCNC MACHINED SPECIAL SPECIALPINNER NUTS RJL K61 best HP RI flAl fl HP RIALUMINUM Made 61 HF llamaS UK 0- ALL THREAD SIZES METRIC & US % Metric 5sB-6x1 -7s1 -Bxl -Bxl25- lOxl25 dSUHF US 6s32 8x32- 1/4s28 5/16x24 1/2 HEXBrsss299Aluminum199 iflSSSltfli St CrEflkcase Easy adi needle5/8 HEXBrsss399Aluminum299 carturetor 3/4 HEX Brsss 449 .. Aluminum Retail Valse $ 2RPRICJ 7/8 HEX Brass 599 .. Aluminum RJL K 61 w/std hush muffler$18995CUSTOM HEAD ADAPTERSiHEXBrass699Aluminum499 FSUPER DFAL~ SO YOU CAN USE STANDARD GLOW PLUGS inHP lair cycle engines IOX 049 HEAD ADAPTER FOR LONG PLUG HP VT tour strokes Made USA Complete 049 HEAD ADAPTER FOR SHORT PLUG 499 carry two year warranty 21 _______TuS stem OX 09 HEAD ADAPTER FOR LONG PLUG699is quietest engine market ______________________________ Includes strap header silicone lost ube & 15 HEAD ADAPTER FOR LONG PLUG 9 rivaled electric mIi espansion chamber pressure tap Inc eases TESTOR McCOY 049 ADAPTER LONG PLUG .All VT engines teature Double ball bearing crankshaft power easily meets sound requirements Tuning in-Diesel Head Conversion CoxBBC bronze brass chrome Valve structions included Great looking Black finish light nor- RJL DIESEL HEAD CONVERSION FOR COX Tee Dee piston/cylinder true chrorr mal estended headers available enginesedallion USE TRUE 0-RING SEALED CONTRA PISTON For9ed&bushed con rod &tary valves Corn lete pipe system.I 0491051 B-$1299 009 $1699 1999High pressure alloy castings i4•-41omt3SSea RII$SMNIVSIA7ELLotsmoreavailablei onal roller bearing supported valve Alma-NO THROTTLE OR MUFFLERHP VT 21 STANDARD HEAD REG295.. 13999 Size Hm5WiUqUHPVT49 STANDARD HEAD ero 289w. 16999 HPVT21 BEARING HEAD . R5O24n95.. 14999 COMPLETE TUNED PIPE SYSTEMjSCHNUERLE PORTHP VT 49 BEARING HEAD . eo 2mw 17999 FOR K&B SPORTSTER 20-28~ P STON/CYL_______________________________________ INCLUDES ALL MOUNTING~SDEEXHAUSTFOR FACTORY PARTS SERVICE AND HARDWARE AND BOOSTSOnly $2999NAPJ15fl7 ff55$3999 POWER 1500 RPMS WITHOUT NOISE INCREASEDIESEL OR GLOW ESELTECHNICAL ASSISTANCE ON ENGINES REAR INTAKE NTAKE IN THIS AD AND THE FOLLOWING $2999 999HB ENGINES KAVAN FK-50 HP ENGINES MU5HERaIREBDMPAIIYgFAwg*IBA END 100 F R 48 PA E CATALOG KRAFT 61 CCX CONOUEST 15 RJL P0 Box 80830 -- San Marino California 91118 SORRY NO CODsTsIPSN 40 HOK ENOiNEE FoRETER ENOINEs 2@RDER TOLL FREEALL CREDIT CARDS ACCEPTEDMcCoy SERIEs 21 stacK HEAD FINNED casE Prices subject 10 change noticeFor parts technical help Call write NO PARTS OR TECHNICAL HELP FROM THIS NUMBER1 imited supply some items ii I,r, 1Sf ping & Handling continental US $400 size order a~inFLN MY V Q Alaska Hawaii & international higher ox 5- SIERRA MADRE CA 91025 LOCAL & INTERNATIONAL 1-81 8-FLY MY RC 3596972California Residents add 825% Sales Tax TELEPHONE 818 3590016 FAx 818-3010-298 May1995 93