Radio Control: Electrics

RADIO CONTROL ELECTRICS f U THIS MONTHS discussion will cover some new E-products seen KRC 98 will discuss some aspects economy Electric photo illustrates new mounting plate Speed 400-type motors Stitzer Model Design 113 William St Centre Hall PA 16828 Tel 814 364-9530 nicely fabricated aluminum plate notched drilled ready motor tie-wrapped plate held wooden hearers screws shown misplaced pricing info can get touch Sam Stitzer full details Another photo billboards expanding line tiny infrared RC stuff Z-TRON Yet another photo details integrated receiver proportional servo motor on/off controller combo thats competitive pen tip size As might guess products aimed right exploding tiny Indoor RC crowd can get full details Z-TRONs products writing Sergio Zigras 171 Arundel Rd Paramus NJ 07652 Cost common concern readers seeking enjoy fun benefits Electric investing too heavily up front Incoming mail suggests youthful once-again-youthful modelers retirees ones likely ask cost-related questions An often-asked question concerns cost motor batteries Since firsttime E-fliers choose six- seven-cell airplanes like Mirage PT Electric natural temptation use RC car batteries RC car battery packs market lowcost latter consideration being attention-getter several low-cost choices perhaps often asked about Duratrax 1500 six- sevencell packs have available mail order few years no experience unable respond first-hand information 100 Model Aviation iled look Z-TRONs new small light RC products all-in-one receiver proportional servo on/off motor control Z-TRONs display super-tiny infrared remote control stuff tiny airplanes seen KRC 98 Sergio Zigras Speed 400 motor mount plate sample installation Stitzer product show 97l Address text Model Products Nicely made cleanly punched Address text Well now Having asked particular question times decided find out ordered two six-cell packs restacked 12-cell pack intent assuming pack OK use Astro 15 As usual new packs slowcharged 12-cell assembly overnight ran discharge curve constant 10-amp loadnot very severe test its representative good enough comparison purposes Pack terminal voltage during discharge automatically recorded computer-controlled dataacquisition system recharged pack five amps using Astro 11 OD peak-detect charger reran discharge did time now discharge data three bench runs new pack Note pack adequately cooled between runs results tests presented graph curious title Four Channel Voltmeter printout computer display dataacquisition system software simply Four Channel Voltmeter can record four separate time-variant voltages simultaneously case Ch 1 used data run made up 200 individual voltage readings/recordings over test duration Note Ch 1 vertical scale ranges Computer-controlled Four Channel Voltmeter display CII 1 voltage scale used battery test described text Curves three battery discharges 10 20 voltsits expanded scale horizontal time axis 10 minutes long grid shown minute data recording duration graphic shown three discharge data runs overlaid same display little regard which-iswhich can clear conscience since much alike What clear data presentation three discharge curves cross 12volt grid line average about 6 ing bonds Only Pro CA example Pro adhesives available includes best used date wide selection sizes free KNOW its freshand its brochure location dealer surface wetting wicking bonding nearest please call 1-800-682-8948 characteristics prime mention code number 0425Z Kit building has challenges Getting dependable bond adhesive shouldnt application Great Planes Pro Adhesives best choice lastThe Pro M Adhesives lineup includes Available 6- 30- 45-Minute formulas Pro Epoxies give maximum strength working time durable fiberglass laminations stain less fuelproofing use Pro Epoxy Finishing Resin easy 1-to-i mixing Choose thin instant setting CA. medium gap-filling CA thick slow curing CA-. ultra-thick super slow curing CA Gel Pro CA Activator pump new easyto-use aerosol cures types CAs instantly Pro CA Debonder dissolves CA gently release bonds damage S Distributed Esolusisely Thraugh GREAT PLANES MODEL DISTRIBUTORS COMPANY RO Bus 9021 Champaign IL 61826-9021 wwwgreatplanescom Copyrghl 19993072294 March 1999 103 POUR CHANNEL UtILTNETER CHi012CII 3 CII 4 Li en 28881611 ___________ _______ ___ ___166188 1808880088888 1588058858858 1480848848848 1288828828828 1888888- -- -rw- 888 888 8828485888188 JIES SAMPLE 208 aquire save BOles re lag terrupt CAs Date-Coded Freshness minutes Applying criteria volt per cell pack cutoff runs show pack under test has capacity slightly 1000 mAhnowhere near label capacity 1500 mAb Remember done relatively light Icad 10 ampsabout half value typical airplanes/power systems named above way checked individual cell voltages fly cells relatively uniformly behaved disappointing test results cannot blamed bad cell two now lets recall question drove investigation first place reader questions suitability economy packs flight motor applications cant say airplane powered would fly can say would fly long comparatively speaking example one-amp-hour cells weigh just about same l7s 2Os take up about same space application really wanted 1000 mAh cells surely smaller lighter cells real one-amp-hour cells would preferred cost cheap case excessive size weight fairness must restate test based small sample two sixcell packs might have purchased non representative sample way knowing other hand immediately shared data supplier got no reaction being eager risk further funds pursuit economy packs Im going additional followup other low-cost battery products am going what always try anyway buy known good stuff As test samples dont consider flyable compared performance standard Im used just have lick dollar-loss wounds find use pack benchperhaps paperweight Battery favorites flighttine imm USA TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered THU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name U PRECISION MODEL PRODUCTS Romco Manufacturing Inc OUALITY VERSA T/LITY T LOOKS SAFETY PO Box 836 South Houston Texas 77587 713 / 943-1867 Z E IS JHM Aero Engineering On-board solid-state glow drivers wwwjhmaeroengineeringcom DGS 2 $2900-DGS 5 $4900 Lights 1 2 glow plugsLights up 5 glow plugs Wt1O ozWt12 oz Requires 12 V cellRequires 12 V cell 9/l6Hxl 3/8Wx2 118L15/l6Hxl 7/8Wx2 7/16L Compatible radiosCompatible radios Specify type radio plug desired Glow plug connectors available $600 Add $200 shipping Ga residents add 7% tax Master Card Visa accepted JHM Aero Engineenng 123 Radford Circle Marietta Ga 300& 770-438-7146 mooremariettaga@wortdnetattnet March 1999 105 ProI\/IagTMAircraft Mag Wheels CNC machined aerospace-grade aluminum barstock Nylon bushings friction-free running long wear Radiused corners high-stress areas Fivespoke mag wheel functional good looks RWLOCK Tire Retention System holding power Recessed center hub keep wheel collar inside rim Hub lerrgth sized fit 5/32 axles including Lite-Flights Aluminum C-Clip Axles Durable lightweight flat-spot resistant foam tires Pr 1 tread design smooth ground good looks ucement foam tires nylon bushings readily available VISA Master Card welcome Dealer inquiries invited call write Precision Model Products 3 Hix St nia Michigan 48154 432-1093 Wanted How-Tos Model Aviation soliciting how-to-do-it articles its readers contributors have special modeling skill unique way solve particular problem Can explain what makes method work Can handle camera know someone can Consider writing how-to article Chances good others can benefit tips techniques Send cover letter about topic attention Executive Editor Please indicate approximate length required cover subject capabilities photography and/or artwork required what form manuscript would take hard copy computer disk fax/modem etc Payment based timeliness subject length article amount work required prepare publication 108 Model Aviation inue B&T SR cells packs reader sent very interesting letter describing experiences economy motor high-quality higher-cost motor described flying Electric Goidlire can motor later Astro 05 cobalt Both direct-drive used same six-cell battery same prop wrote ask flight results essentially same despite sizeable difference motor cost Goldfire Astro 05 cobalt have very comparable behavior tower power levels particular installation fact demonstrated myself past able respond query because experience However run both motors higher power levels two performances would begin separate Astro superior brush commutator interface other features would soon pull away economy can motor Over long haul Astro its ball bearings larger-diameter shaft cobalt magnets serviceable brushes would easily outlive outperform throwaway competition especially used higher power levels beyond reader flying above notwithstanding perfectly reasonable use economy can motors flight demands overall performance expectations highest nothing wrong Ive done ever since Ive flying E-power have companions flightline Nevertheless have use quality motors throwaways Something everyone something application Car motors another reader interest comes pursuit economy Electric car motors market lots relatively low cost Through years Ive toyed share car motors far can determine no car motors suitable direct-drive application E-aeromodels motors typically fast-turning-they wound relatively high rpm may sound good its high rpm dictates use too-small propnecessary hold current reasonable levels typically quite-small prop simply New Toll Free Number 888-790-8577 S@mething smaller taking wing Mud Duck Aviation 7118 Westmoreland Dr Warrenton VA 20187 WWWcaseynet com/mudduckcchipleycutizen unfi net w CIeoCospyAoIobIe BIde K $255 Sheed Ki $365DI,, Sheered Ki $95 IJLTIMATESPORT BC 255 Eod Aahlosd/PO 806727/Soda Springa Idaho 83276 12085473742FF,h,IfoSadSA5E wont work well air So dont think about using car motors direct-drive applications Geared car motors can entirely different story fact what makes motors useless direct-drive makes well worth considering geared applications depending flying intent general Ive found operating car motors over six- ten-cell range holding current 20-amp area average can provide lots quality flight fun reasonable cost trick always match up motor gear drive prop battery cell count get whats needed application topic alone could fill column two Two well-proven combinations Magnetic Mayhem Reverse about $19 31 drive turning 11 x 7 prop 10 cells Use 381 drive turn 13 x 7 Put airplanes up about 3/2-4 pounds weight same time dont lose sight fact still economy motors will wear out much easily high-quality product Chargers another item often questioned economy topic interest Ive written before have others invest good charger right start fact Id recommend delaying getting hobby until such investment can made Economy six- seven-cell chargers good investment long haul will typically wind up trash must control costs up front going economy motor route starters least youll have plenty flying fun start can always upgrade motor later strongly recommend reasonably priced Astro 1 lOD peak-detector charger works very well can charge up 18 cells can good rellable peak-detecting operation have two routine use use flightline Coupling good working charger quality motor battery best wayand long term most-economical wayto handle energy storage delivery needs E aeromodeling right start So ends column Come-on E Springtime Please enclose SASE correspondence youd like reply uying Engines cash Old current glow diesel ignition Trade ins possible Any condition has value Bob Boumstein 10970 Marcy Plaza Omaha Nebraska 68154 Phone 402-334-0122 Fax 402-334-4173 Hyde Soft Mounts 3 year guarantee Enjoy increased RPM reduced noise extended equipment life 2000% over other mount money back Patented sizes available Starting $5200 CK/MO/COD Orders/info Merle Hyde 3 Golfview Drive Henderson NV 89014 Ph/Fx 702-269-7829 Boeing 80A Scale Plans Model Aviation October 1998 Page 79 wwwlapaginaconi/sammossrchtm Make Real Decals computer printer Send $1000 introductory kit LABCO Dept MA 27563 Dover Warren Ml 48093 http//wwwmichcom/labco/ Plans Enlarging Plan Enlarging Software Large scale scanning/plotting Concept Technology PO Box 669 Poway CA 92074 Attention Contest Directors CD Pro software easily handles Pilot Registration Scoring AMA Reports Frequency Control Visit http//wwwrcorocom call 614-878-6805 information Flying Aces Video 1997 Nationals two hours scale free flight competition includeing static display $2350 pp Charlie Sauter 3372 Kirkham Road Columbus OH 43221 Aces Video crash course 101 $2000 plus shipping & handling 1997 Las Vegas OSAA fly 2/set $4000 plus shipping & handling Hitchcock Production 22 West F Ave Kalamazoo Ml 49004 1-800-987-5491 Balsa USA Kits Big Discounts Save $$$ off advertised prices GCBM R/C Models 5009 Fairdale Pasadena TX 77505 1 -800-609-7951 Blue Gray Model Aircraft & Boat Builder Building kits Specializing 1/4 scale above 35 years experience Reasonable turnover time rates Call free quote John Sellhamer 3461 Old Harrisburg Rd Gettysburg PA 17325 717-334-4301 After 600 PM EST iseil @ mailcvnnet Price Zaic Year Books will increased March 1sf New List Index 15 Book 1394 Plans $125 Model Aeronautic Publications Box 135 Northridge CA 91328 Subscribe Silent Flight SAVE magazine covers aspects model gliding electric powered soaring Subscribe before 2/15/99 special AMA rate $38 7 issues per year Send check payable Wise Owl Worldwide Publications 4314 W 238th Street Suite Torrance CA 90505-4509 310-375-6258 CIL Combat Model Plans Renegade T-Square Reactor Etc OT Stunt SASE catalog Barry Baxter 3292 Greenleaf Dr Brea CA 92823-6323 Model Warplanes 10000 plans kits $1800 John Fredriksen 461 Loring Salem MA 01970 http//wwwreconlinecom/1 812 Scale Plans Clements 308 Palo Alto CaIdwell ID 83605 Send LSASE Buzzard Back 160 pages sailplane wisdom stolen experts Old Buzzards Soaring Book $1695 postpaid Check MO Dave Thornburg 5 Monticello Dr Albuquerque NM 87123 Giant Scale Plans $1995 Photo/Info E-mail rcpaeroplans@freewwwebcom Staudacher S-300D 81 span 145 lbs $3700 PPD 65 span 8 lbs $2500 PPD Rolled plans Bruce Lund Models 17 Saint Charles Place Daphne AL 36526 334-626-4283 Attention Old Time Model Kit builders B & M Model Company now offering line Old Time Free Flight kits partial 3-channel kits Send $200 color photo sheet models kit contents listing B & M Model Company 290 West 1050 North Layton Utah 84041 Telephone 801 -544-5689 R C Flight Instruction Plus- beginner instructor week whether have RC flying experience using proven Ragland Techniques June 98 Grand Event can teach skillfully fly R C airplane helicopter well enough train others Call write information Clarence C Ragland 546 Niagara Street Lockport NY 14094 716-434-7965 FREE Trim Stability helpful practical summary subject references Trimming cannot correct stability troubles SASE William MeComba 2106a Siesta Dallas TX 75224 Flying Scale Models Magazine covers categories flying scale models issue filled information techniques insights fun includes free plan year subscription 6 issues send $37 check payable Wise Owl Worldwide Publications 4314 W 238th Street Suite Torrance CA 90505 310-375-6258 113 Scale Davis Acro Pro Ready Fly Bob Godfrey Kit Comes JR 6 Ch XF622 Transmitter 3W-70 glow engine 9875 wingspan 83 long 23 lbs Contact Robert Drexler 513-3675596 Negotiable Scale Plans Harold Osborne Over 160 plans 049 1/3 Scale R/C Power Sailplanes 1940s C/L Scale Indoor/Outdoor Rubber Power Racer Civilian Scale Drawings Send #10 SASE $64 Ken Kehlet 6800 St Marys Place Oklahoma City Oklahoma 73132 E-mail kbkopyl @junocom Glow engines 1960s vintage sizes 15 60 Also control line Veco Smoothie kit complete call Arlin 507-451-8105 String Trimmer excellent 1/4 scale gas engines Custom conversions Homelife Ryobi Weedeater McCulloch Honda etc kits accessories Conversion design package $5 Visa Carr Precision 6040 N Cutter Circle #303 Portland OR 97217503-735-9980 http//homeattnet/-carrprecision R C Soaring Digest Monthly Journal R C soaring enthusiasts focusing technical construction techniques glider design since 1984 Sample copy $250 year subscription $30 check payable RCSD P0 Box 2108 Wylie TX 75098 972-442-3910 Finest R C Soaring Videos best-seller Endless Lift New Endless Lift 2 Ultimate Soaring Information previews Website wwwradiocarbonartcom Tapes $2495 both $3995 plus $300 shipping MBG Visa/Mastercard Radio Carbon Art PO Box 2311 Dept Corvallis OR 97339-2311 Phone 541752-9661 Illness Sale Kits planes plans engines servos power packs chargers radios much Leon 302-629-4858 Classitied advertising must paid advance rate ot $50 per word Please make check payable Model Aviation wail check printed copy ot ad Mark Lanterman Airborne Media 5655 David Place Fairfield OH 45014 Ad payment must received 15th ot third month preceding issue date esample April 15 tor July issue Ads will printed flint come timt served basis space permits Ads may ren month time Multiply cost ot ad times number months ad will run include initial payment Count initials numbem phone numbers address city state zip code word Questions about Classitied ads should directed Mark Lanterman IToh Freel 888-529-4060 March 1999 109

RADIO CONTROL ELECTRICS f U THIS MONTHS discussion will cover some new E-products seen KRC 98 will discuss some aspects economy Electric photo illustrates new mounting plate Speed 400-type motors Stitzer Model Design 113 William St Centre Hall PA 16828 Tel 814 364-9530 nicely fabricated aluminum plate notched drilled ready motor tie-wrapped plate held wooden hearers screws shown misplaced pricing info can get touch Sam Stitzer full details Another photo billboards expanding line tiny infrared RC stuff Z-TRON Yet another photo details integrated receiver proportional servo motor on/off controller combo thats competitive pen tip size As might guess products aimed right exploding tiny Indoor RC crowd can get full details Z-TRONs products writing Sergio Zigras 171 Arundel Rd Paramus NJ 07652 Cost common concern readers seeking enjoy fun benefits Electric investing too heavily up front Incoming mail suggests youthful once-again-youthful modelers retirees ones likely ask cost-related questions An often-asked question concerns cost motor batteries Since firsttime E-fliers choose six- seven-cell airplanes like Mirage PT Electric natural temptation use RC car batteries RC car battery packs market lowcost latter consideration being attention-getter several low-cost choices perhaps often asked about Duratrax 1500 six- sevencell packs have available mail order few years no experience unable respond first-hand information 100 Model Aviation iled look Z-TRONs new small light RC products all-in-one receiver proportional servo on/off motor control Z-TRONs display super-tiny infrared remote control stuff tiny airplanes seen KRC 98 Sergio Zigras Speed 400 motor mount plate sample installation Stitzer product show 97l Address text Model Products Nicely made cleanly punched Address text Well now Having asked particular question times decided find out ordered two six-cell packs restacked 12-cell pack intent assuming pack OK use Astro 15 As usual new packs slowcharged 12-cell assembly overnight ran discharge curve constant 10-amp loadnot very severe test its representative good enough comparison purposes Pack terminal voltage during discharge automatically recorded computer-controlled dataacquisition system recharged pack five amps using Astro 11 OD peak-detect charger reran discharge did time now discharge data three bench runs new pack Note pack adequately cooled between runs results tests presented graph curious title Four Channel Voltmeter printout computer display dataacquisition system software simply Four Channel Voltmeter can record four separate time-variant voltages simultaneously case Ch 1 used data run made up 200 individual voltage readings/recordings over test duration Note Ch 1 vertical scale ranges Computer-controlled Four Channel Voltmeter display CII 1 voltage scale used battery test described text Curves three battery discharges 10 20 voltsits expanded scale horizontal time axis 10 minutes long grid shown minute data recording duration graphic shown three discharge data runs overlaid same display little regard which-iswhich can clear conscience since much alike What clear data presentation three discharge curves cross 12volt grid line average about 6 ing bonds Only Pro CA example Pro adhesives available includes best used date wide selection sizes free KNOW its freshand its brochure location dealer surface wetting wicking bonding nearest please call 1-800-682-8948 characteristics prime mention code number 0425Z Kit building has challenges Getting dependable bond adhesive shouldnt application Great Planes Pro Adhesives best choice lastThe Pro M Adhesives lineup includes Available 6- 30- 45-Minute formulas Pro Epoxies give maximum strength working time durable fiberglass laminations stain less fuelproofing use Pro Epoxy Finishing Resin easy 1-to-i mixing Choose thin instant setting CA. medium gap-filling CA thick slow curing CA-. ultra-thick super slow curing CA Gel Pro CA Activator pump new easyto-use aerosol cures types CAs instantly Pro CA Debonder dissolves CA gently release bonds damage S Distributed Esolusisely Thraugh GREAT PLANES MODEL DISTRIBUTORS COMPANY RO Bus 9021 Champaign IL 61826-9021 wwwgreatplanescom Copyrghl 19993072294 March 1999 103 POUR CHANNEL UtILTNETER CHi012CII 3 CII 4 Li en 28881611 ___________ _______ ___ ___166188 1808880088888 1588058858858 1480848848848 1288828828828 1888888- -- -rw- 888 888 8828485888188 JIES SAMPLE 208 aquire save BOles re lag terrupt CAs Date-Coded Freshness minutes Applying criteria volt per cell pack cutoff runs show pack under test has capacity slightly 1000 mAhnowhere near label capacity 1500 mAb Remember done relatively light Icad 10 ampsabout half value typical airplanes/power systems named above way checked individual cell voltages fly cells relatively uniformly behaved disappointing test results cannot blamed bad cell two now lets recall question drove investigation first place reader questions suitability economy packs flight motor applications cant say airplane powered would fly can say would fly long comparatively speaking example one-amp-hour cells weigh just about same l7s 2Os take up about same space application really wanted 1000 mAh cells surely smaller lighter cells real one-amp-hour cells would preferred cost cheap case excessive size weight fairness must restate test based small sample two sixcell packs might have purchased non representative sample way knowing other hand immediately shared data supplier got no reaction being eager risk further funds pursuit economy packs Im going additional followup other low-cost battery products am going what always try anyway buy known good stuff As test samples dont consider flyable compared performance standard Im used just have lick dollar-loss wounds find use pack benchperhaps paperweight Battery favorites flighttine imm USA TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered THU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name U PRECISION MODEL PRODUCTS Romco Manufacturing Inc OUALITY VERSA T/LITY T LOOKS SAFETY PO Box 836 South Houston Texas 77587 713 / 943-1867 Z E IS JHM Aero Engineering On-board solid-state glow drivers wwwjhmaeroengineeringcom DGS 2 $2900-DGS 5 $4900 Lights 1 2 glow plugsLights up 5 glow plugs Wt1O ozWt12 oz Requires 12 V cellRequires 12 V cell 9/l6Hxl 3/8Wx2 118L15/l6Hxl 7/8Wx2 7/16L Compatible radiosCompatible radios Specify type radio plug desired Glow plug connectors available $600 Add $200 shipping Ga residents add 7% tax Master Card Visa accepted JHM Aero Engineenng 123 Radford Circle Marietta Ga 300& 770-438-7146 mooremariettaga@wortdnetattnet March 1999 105 ProI\/IagTMAircraft Mag Wheels CNC machined aerospace-grade aluminum barstock Nylon bushings friction-free running long wear Radiused corners high-stress areas Fivespoke mag wheel functional good looks RWLOCK Tire Retention System holding power Recessed center hub keep wheel collar inside rim Hub lerrgth sized fit 5/32 axles including Lite-Flights Aluminum C-Clip Axles Durable lightweight flat-spot resistant foam tires Pr 1 tread design smooth ground good looks ucement foam tires nylon bushings readily available VISA Master Card welcome Dealer inquiries invited call write Precision Model Products 3 Hix St nia Michigan 48154 432-1093 Wanted How-Tos Model Aviation soliciting how-to-do-it articles its readers contributors have special modeling skill unique way solve particular problem Can explain what makes method work Can handle camera know someone can Consider writing how-to article Chances good others can benefit tips techniques Send cover letter about topic attention Executive Editor Please indicate approximate length required cover subject capabilities photography and/or artwork required what form manuscript would take hard copy computer disk fax/modem etc Payment based timeliness subject length article amount work required prepare publication 108 Model Aviation inue B&T SR cells packs reader sent very interesting letter describing experiences economy motor high-quality higher-cost motor described flying Electric Goidlire can motor later Astro 05 cobalt Both direct-drive used same six-cell battery same prop wrote ask flight results essentially same despite sizeable difference motor cost Goldfire Astro 05 cobalt have very comparable behavior tower power levels particular installation fact demonstrated myself past able respond query because experience However run both motors higher power levels two performances would begin separate Astro superior brush commutator interface other features would soon pull away economy can motor Over long haul Astro its ball bearings larger-diameter shaft cobalt magnets serviceable brushes would easily outlive outperform throwaway competition especially used higher power levels beyond reader flying above notwithstanding perfectly reasonable use economy can motors flight demands overall performance expectations highest nothing wrong Ive done ever since Ive flying E-power have companions flightline Nevertheless have use quality motors throwaways Something everyone something application Car motors another reader interest comes pursuit economy Electric car motors market lots relatively low cost Through years Ive toyed share car motors far can determine no car motors suitable direct-drive application E-aeromodels motors typically fast-turning-they wound relatively high rpm may sound good its high rpm dictates use too-small propnecessary hold current reasonable levels typically quite-small prop simply New Toll Free Number 888-790-8577 S@mething smaller taking wing Mud Duck Aviation 7118 Westmoreland Dr Warrenton VA 20187 WWWcaseynet com/mudduckcchipleycutizen unfi net w CIeoCospyAoIobIe BIde K $255 Sheed Ki $365DI,, Sheered Ki $95 IJLTIMATESPORT BC 255 Eod Aahlosd/PO 806727/Soda Springa Idaho 83276 12085473742FF,h,IfoSadSA5E wont work well air So dont think about using car motors direct-drive applications Geared car motors can entirely different story fact what makes motors useless direct-drive makes well worth considering geared applications depending flying intent general Ive found operating car motors over six- ten-cell range holding current 20-amp area average can provide lots quality flight fun reasonable cost trick always match up motor gear drive prop battery cell count get whats needed application topic alone could fill column two Two well-proven combinations Magnetic Mayhem Reverse about $19 31 drive turning 11 x 7 prop 10 cells Use 381 drive turn 13 x 7 Put airplanes up about 3/2-4 pounds weight same time dont lose sight fact still economy motors will wear out much easily high-quality product Chargers another item often questioned economy topic interest Ive written before have others invest good charger right start fact Id recommend delaying getting hobby until such investment can made Economy six- seven-cell chargers good investment long haul will typically wind up trash must control costs up front going economy motor route starters least youll have plenty flying fun start can always upgrade motor later strongly recommend reasonably priced Astro 1 lOD peak-detector charger works very well can charge up 18 cells can good rellable peak-detecting operation have two routine use use flightline Coupling good working charger quality motor battery best wayand long term most-economical wayto handle energy storage delivery needs E aeromodeling right start So ends column Come-on E Springtime Please enclose SASE correspondence youd like reply uying Engines cash Old current glow diesel ignition Trade ins possible Any condition has value Bob Boumstein 10970 Marcy Plaza Omaha Nebraska 68154 Phone 402-334-0122 Fax 402-334-4173 Hyde Soft Mounts 3 year guarantee Enjoy increased RPM reduced noise extended equipment life 2000% over other mount money back Patented sizes available Starting $5200 CK/MO/COD Orders/info Merle Hyde 3 Golfview Drive Henderson NV 89014 Ph/Fx 702-269-7829 Boeing 80A Scale Plans Model Aviation October 1998 Page 79 wwwlapaginaconi/sammossrchtm Make Real Decals computer printer Send $1000 introductory kit LABCO Dept MA 27563 Dover Warren Ml 48093 http//wwwmichcom/labco/ Plans Enlarging Plan Enlarging Software Large scale scanning/plotting Concept Technology PO Box 669 Poway CA 92074 Attention Contest Directors CD Pro software easily handles Pilot Registration Scoring AMA Reports Frequency Control Visit http//wwwrcorocom call 614-878-6805 information Flying Aces Video 1997 Nationals two hours scale free flight competition includeing static display $2350 pp Charlie Sauter 3372 Kirkham Road Columbus OH 43221 Aces Video crash course 101 $2000 plus shipping & handling 1997 Las Vegas OSAA fly 2/set $4000 plus shipping & handling Hitchcock Production 22 West F Ave Kalamazoo Ml 49004 1-800-987-5491 Balsa USA Kits Big Discounts Save $$$ off advertised prices GCBM R/C Models 5009 Fairdale Pasadena TX 77505 1 -800-609-7951 Blue Gray Model Aircraft & Boat Builder Building kits Specializing 1/4 scale above 35 years experience Reasonable turnover time rates Call free quote John Sellhamer 3461 Old Harrisburg Rd Gettysburg PA 17325 717-334-4301 After 600 PM EST iseil @ mailcvnnet Price Zaic Year Books will increased March 1sf New List Index 15 Book 1394 Plans $125 Model Aeronautic Publications Box 135 Northridge CA 91328 Subscribe Silent Flight SAVE magazine covers aspects model gliding electric powered soaring Subscribe before 2/15/99 special AMA rate $38 7 issues per year Send check payable Wise Owl Worldwide Publications 4314 W 238th Street Suite Torrance CA 90505-4509 310-375-6258 CIL Combat Model Plans Renegade T-Square Reactor Etc OT Stunt SASE catalog Barry Baxter 3292 Greenleaf Dr Brea CA 92823-6323 Model Warplanes 10000 plans kits $1800 John Fredriksen 461 Loring Salem MA 01970 http//wwwreconlinecom/1 812 Scale Plans Clements 308 Palo Alto CaIdwell ID 83605 Send LSASE Buzzard Back 160 pages sailplane wisdom stolen experts Old Buzzards Soaring Book $1695 postpaid Check MO Dave Thornburg 5 Monticello Dr Albuquerque NM 87123 Giant Scale Plans $1995 Photo/Info E-mail rcpaeroplans@freewwwebcom Staudacher S-300D 81 span 145 lbs $3700 PPD 65 span 8 lbs $2500 PPD Rolled plans Bruce Lund Models 17 Saint Charles Place Daphne AL 36526 334-626-4283 Attention Old Time Model Kit builders B & M Model Company now offering line Old Time Free Flight kits partial 3-channel kits Send $200 color photo sheet models kit contents listing B & M Model Company 290 West 1050 North Layton Utah 84041 Telephone 801 -544-5689 R C Flight Instruction Plus- beginner instructor week whether have RC flying experience using proven Ragland Techniques June 98 Grand Event can teach skillfully fly R C airplane helicopter well enough train others Call write information Clarence C Ragland 546 Niagara Street Lockport NY 14094 716-434-7965 FREE Trim Stability helpful practical summary subject references Trimming cannot correct stability troubles SASE William MeComba 2106a Siesta Dallas TX 75224 Flying Scale Models Magazine covers categories flying scale models issue filled information techniques insights fun includes free plan year subscription 6 issues send $37 check payable Wise Owl Worldwide Publications 4314 W 238th Street Suite Torrance CA 90505 310-375-6258 113 Scale Davis Acro Pro Ready Fly Bob Godfrey Kit Comes JR 6 Ch XF622 Transmitter 3W-70 glow engine 9875 wingspan 83 long 23 lbs Contact Robert Drexler 513-3675596 Negotiable Scale Plans Harold Osborne Over 160 plans 049 1/3 Scale R/C Power Sailplanes 1940s C/L Scale Indoor/Outdoor Rubber Power Racer Civilian Scale Drawings Send #10 SASE $64 Ken Kehlet 6800 St Marys Place Oklahoma City Oklahoma 73132 E-mail kbkopyl @junocom Glow engines 1960s vintage sizes 15 60 Also control line Veco Smoothie kit complete call Arlin 507-451-8105 String Trimmer excellent 1/4 scale gas engines Custom conversions Homelife Ryobi Weedeater McCulloch Honda etc kits accessories Conversion design package $5 Visa Carr Precision 6040 N Cutter Circle #303 Portland OR 97217503-735-9980 http//homeattnet/-carrprecision R C Soaring Digest Monthly Journal R C soaring enthusiasts focusing technical construction techniques glider design since 1984 Sample copy $250 year subscription $30 check payable RCSD P0 Box 2108 Wylie TX 75098 972-442-3910 Finest R C Soaring Videos best-seller Endless Lift New Endless Lift 2 Ultimate Soaring Information previews Website wwwradiocarbonartcom Tapes $2495 both $3995 plus $300 shipping MBG Visa/Mastercard Radio Carbon Art PO Box 2311 Dept Corvallis OR 97339-2311 Phone 541752-9661 Illness Sale Kits planes plans engines servos power packs chargers radios much Leon 302-629-4858 Classitied advertising must paid advance rate ot $50 per word Please make check payable Model Aviation wail check printed copy ot ad Mark Lanterman Airborne Media 5655 David Place Fairfield OH 45014 Ad payment must received 15th ot third month preceding issue date esample April 15 tor July issue Ads will printed flint come timt served basis space permits Ads may ren month time Multiply cost ot ad times number months ad will run include initial payment Count initials numbem phone numbers address city state zip code word Questions about Classitied ads should directed Mark Lanterman IToh Freel 888-529-4060 March 1999 109