RADIO CONTROL ELECTRICS U MONTHS TOPICS include meet announcement two reminders new catalog E-Motion large small power systems Dallas Electric Flyers DEAF has announced its Ninth Annual Electric Fly-in September 30-October 1 Dallas RC Field Seagoville TX near Dallas addition events will sell/swap bazaar free Saturday night buffet free DEAF Fly-In mug Electric folks friendliest Get details CD Frank Korman 9354 Forrest Hills Blvd Dallas TX 75218 Tel 214 327-8411 Please dont forget have power help shape column future September column asked input what needs interests likes/dislikes Electric column like/want newproduct announcements meet announcements meet reports beginner stuff high-tech stuff how-to something havent thought Please let deepest secret E-column wishesand knows may happen please dont forget columns club call Please see September October columns details Dont let club left outNovember its way dont know folks Hobby Lobby continue outdo themselves new HL catalog jam-packed masterpiece E-content surely cant beat HL folks have added numerous new Electric items already extensive selection including airplanes motors gear drives helicopter etc cover work art too Get HL Catalog $250 Hobby Lobby International 5614 Franklin Pike Circle Brentwood TN 37027 Tel 615 373-1444 get $6 voucher 74 Model Aviation 4Under hood E-Motion Model Electronics Plus Turbo 10 E-Motion 6-10-cell gear drive systems Weighs 44-52 ounces 61 gears Flightec SP BEG controller floor depending power system used Electric models fly sizes Tiny 18-ounce Micro-E Dick Miller presses Tom Hunts 16-pound quarter-scale Cub submission Sig Seniorita twin Canadas Jeff Miller Astro geared 15s 24 Vintage Midwest trio Esquires Everett Rubendunst has 02cells ailerons weighs 7 pounds 12 ounces 25 power weighs 32-1 20 ounces purchase catalog cant possibly go wrong Alternatively catalog free regular customers orders As mentioned May column Ive working new six-to-tencell Electric design use small geared systems market such Master Airscrew Model Electronics American Fun Fly Astro roll own variety based car motors photo shows just-finished E-Motion another gives look inside E-Motion 400-square-inch configuration looks somewhat like slope soarer has NACA 2412 section rather large strip ailerons goes Ive use about 10 days write Ive already checked out over 6-10 cell range motor prop mixture including Master Airscrews home-brew car motor Model Electronics Turbo Plus 10 61 ratio particular note latter system 10 cells Sonic Tronics 13 x 7 long hub climb absolutely sizzling 49 ounces ascent quite vertical close Its quite bit docile still very flyable less-impressive systems has something everybody including growth opportunity E Motion very exciting experimental point view still have lots power combos try including some Astros American Fun Fly new Aveox Thats what keeps going E-xcitement June 1995 LVRCS Meet near Easton PA brought out its usual exciting attendance nice casual meet run fine folks great flying site photo particular need further comment two airplanes depicting large small Electric RC photo opportunity presented itself quite coincidence just after finished writing October column column offered some thoughts regarding just large just tiny Electric models can Lets begin biggie Tom Hunt ouffitted previously-built Nosen quarter-scale Cub ModelAir-Tech dual-motor belt-drive unit driven two 12-volt version Speed 700s Hobby Lobby No attempt made lighten 16-pound craft easily flies 32 SR l500sanda2O xli fan Thelatterturns at4000rpmwitha20-amp NEW BIG Lazy Bee finally BI LAZY BEE modelers fly BIG planes has same amazing low speed flying characteristics the60 WINGWING 41094119 smaller Lazy Bee amazing character istics Cox decided manufacture Cox RTF Lazy Bee under license us E SHIPPING INSIDE USA could go on about tight turns short take-The Big Plane can Fly Small Places offs snap rolls hands-off stability gives itFlys Juat Like Original Lazy Bee ability self-recover attitude superAccepts 25 45 2-cycle Electric 45 slow stall speed Seeing is70 4-Cycle Believing Get 35 mm video see the Super Low Wing Loading 78 112 os/sq Itt BIG Wing Area Over 5 Sq Ft Std 50 Wing Lazy Bee perform aerobatics taxi over 2 x 10 Sq Ft 72 Extended Wingl fly floats gas & electric power fly in Optional Removable Tail Easy Transport formation ducks morel New low price Optional eolt-on Wing just $10 including shippingit includes computer drawn plans covering itterns detailed instruction book Pre-cut Balsa xl Pluversord macto rarhrxxr fiher stainless steel tor windows TIlE OX READY-TO-FLY Just shake out box go flying huge wing Standard 40 wino Kit $54 Extended Wing 48 wino Kit $60 Float Kit $24 makes ideal beginners Experts will enjoy respon sive oversized control surfaces Low Price Guarantee will 049 powered 39 span radio ONLY $109FREE SHIPPISO IN USbeat advertised OR 2 channel 27 MHz 2-stick radio $179 FREE SHIRPISO IN USLazy Bee Priceal Prices include Priority Mail ~shipping Convert land st plane 2 minutesl improved Lazy Bee kits feature New computer drawn plans espsnded instruction hook optional bolt-on wing & removable tail quick socess battery door electric flyers recom mend 40 version moat glow engines aerobatics snd 48 entended wing training gliding four-cycle engines electric power 3NWILID WA New! Iectrification ombination Only $119For Quick Service Call carry full lineal great inflatehie wheels lS500InCOeSerlOUOesvlecrtoombonsculortvxdvLauyexxhanelleo[v32][b1723297492125320]]CLANCY AVIATION wesome snockabosrbinq shility light aeght have made reedrsner staneuflpeg eleonic irchneos essteyrsceoo 05 gearmive mots,OU 6491534219 W 2nd AVE modelers whs demand best AsrrsPigvt2rnmicrnopeedmorrni7mllsaoynroodmerEenerypechAP[v32][b1681302292025700]] H em 105pm MST M-F MESA AZ 85210-1317 te 6 diameter far pmp HiTec peek detector neck cOarse system giveeeeeorin5 mjoato cenoiTosesucos cesnes vccnrno sizes tnI lull thenie loops roid hammerheods etc acfr lor5er flight relaxed HPar info send oar nec catalos 92 Free catalog rhronled hacir Oreat flootfipirs toe aecirs Oxijeciog rhe video vase ALL PRICES IPtCL5OE OHIPPIttO lesion THE 55 76 Model Aviation Jennifer Lumley holds Chris Trues 171/2-ounce Graupner Mini Viper Six-volt Speed 400 seven KR 1000 AEs EEEEE A4 way have hard time reading tiny orint really shoald get Lazy Bee easy t Matchedl700SCRClndCeIls $550 SANYO N270 AA md Cells $250 SANYO Ni 700 SCRC Ind Cells $450 SANYO 600 AA Rechargeable $150 SANYO N1400 SCR md Cells $300 4 Cell 270 AA Receiver Pk $1000 SANYO Ni 000 SCR md Cells $350 5 Cell 1000 AE Receiver Pk $1800 SANYO N600 SCR Ind Cells $350 SANYO N800 AR md Cells $350 WIRE SHRINK SANYO KR600 AE md Cells $250 BARS AND BRAIDS AVAILABLE draw Its majestic Tom half Hunt-Aberle team forms ModelAir TechThis Cub held pressed ground Dick Millers 16-inch Micro-E designed Don Srull Two 50-mAh cells power HiLine Micro 4 motor turning 3-inch prop Rudder-only guidance provided very tiny CETO radio discussed last month all-up weight 18 ounces Remember position flies can flown Electric Several months ago opened up topic power-system basics included some discussion motors props batteries topic prompted some ongoing confusion appears mail fliglitline Electric motors tend turn rpm directly related applied voltage principle means double voltage motor will spin twice fast fact motor parameter called K vthe rpm per volt constant dictates behavior typical number motors might 2000 example motor would turn 2000 rpm volt applied practice motor RPM falls somewhat short rulesort volt equation just applied battery voltage rather its applied voltage minus voltage loss due current flow winding resistance motor highquality motors having few turns very heavy wire loss minimal motor heating rpm closely tracks actual applled motor terminal voltage August issue included graph motor voltage current rpm review graph youll see rpm curve does quite track linear voltage ramp-up shown rpm curve nearly linearbut quite typical illustration behavior motor voltage rpm goodquality motor Earlier discussions motor current drain very low unloaded no prop motor shaft spinning prop moving air load motor indeed its whole idea behind E flight takes power move air model motor input current rises rapidly prop size andlor rpm larger prop turns faster moves air does work becomes heavier load motor Thus given applied voltage number cells oaly way motor can tarn larger prop drive heavier load demand input currentTo turn particular prop faster motor requires voltage cunent Given typical model flightline has fixed number cells installed getting out can achieved increasing prop size must carefully considered move because bigger prop always dictates motor current some point motor current can become excessive point being destructive some current level damage will resultusually brushes brush springs and/or commutator Current offender because its current causes motor heat 78 Model Aviation 4WEfMNWJEWAVMWLUMWWHLEWtVJYMUI ~aerM deIcIzo P47 24 UBERATOR* __24 NOT INCLUDED 12 Exciting wwiuy nIuuIu w urn i unwzu w WWH uuuiiy pturunj Ill EUN WIR tUMID IIIW Ilium INCLUDES Full instructIons histoilcal notes clear plastIc prop disks Accurate detall carefully designed mbly Makes fantastic mobile OR create own minIature Air Museum Scale IS approx 172 SatisfactIon always Guaranteed AvalWle Air Mieseums directly aeg formula current squared times motor resistance r lost heat Doubling current causes four times heat principle usually practice other way get out Adding cells dropping prop size way increase motor operating power much risk damage idea maintain motor current some safe level using smaller prop increasing voltage Remember motor power input product motor terminal voltage current current primary risk factor Increasing voltage some cells maintaining safe current level dropping prop size trickbeing mindful added cell weight course some point given model may perform better smaller faster prop same would true plane wet- rubber-powered idea really simple little first hand practice will quickly drive point home easily done assist current meter least can strongly recommend Astro digital ammeter/voltmeter catalog number 100 available discounted less $50 little meter simply plugs motor circuit airplane bench can switch reading motor voltage reading motor current can quickly determine motor input power its bit much wallet think terms motors wont destroy experiment new planes power systems team up buddy share expense necessary can also use conventional current shunt separate meter may already have Please refer January 1993 column details power systems Ive just tried E-Motion economy motor wanted operate around 20 amps also wanted use 10 cells Using guideline 11-volts-per-cell operating voltage flight would give motor input power level about 220 watts wanted see E Motion would perform 200 watts little charged up pack tried three props included Sonic-Tronics 12 x 7 longhub folder Master Airscrew 12 x 8 folder Sonic-Tronics 13 x 7 long-hub folder Astro meter plugged circuit between speed control motor carefully ran up throttle few seconds noted following values order 215 24 265 amps what wanted went first prop Clearly could same sort thing other condition preferences such different cell counts and/or different preferred current actually tried three props short time just see E-Motion performed definitely performed differently among choices power system basics future Thus ends another column Please enjoy Fall Electric flying flying better cool dry air performance longer way works enclose SASE correspondence youd like reply power reliability affordable servos TAKE COMMAND Compare value features quality youll see more modelers choose Hobbico Command servos cars planes boats hells micro 1/4 scale get MORE performance LESS money So next time youre market servos dont take chances. take Commandl No matter what application theres Hobbico Command servo thats right Deluxe CS-55 aded CS-51 bearings Dual BB 05-67 ision servo dual ball bearings smooth operation 1/4 Scale 05-72 -torque servo thats perfect large scale aircraft Micro OS-il ltra compact lightweight high speed servo Mini CS-31 l-size servo thats ideal electric hells planes Standard OS-51 est seller wide range applications Law-Profile OS-63 compact high-torque retract servo fitsriOBBICO tight spacesCOMMA NDgervog location dealer nearest please call 1 800 682 8948 mention code #0470 Gear Door Cycler Battery Backer Exactly chat need for Best way insure reliable split retractdoorsequenc- power model Use let like P-51 Met- with 2 packs Reins main tact & other aircraft includ- packthen switchesto backleg jetsl Install a op pack Works stan Y connector retract dard 4 cell 5 cell Gel-Cell channel Controls tear door packs Battery packs can servos time in- ditferentcapacitylikeal200 tractswitchisusedupordown geardoorsopentorafew & 600 Solid state desito secondsandthencloseataini Oelaytimeisadjestablefrow uses MOSFET transistors Yoo add own switch har 1 9 seconds 1 551 553/4 1/2 oz $39 95testes w n 1 5x1 5s3 4 Weths 8 oz $49 95 GLITCH Buster Mini-Max Throttle Optically isolate 6 chanThe microprocessor con nels use separate bat-trolled super-small MINI tery pack tor terseMAX features hith-rate no powerl Totally eliminatesadjustment auto-setup soft tlitchint caused heavystart hrake throttle-tuard duty servos loot leadswontstartitarmed stick can use 45 6 cellsleon position motor-oft fail servo side extrasate esteesive tlitch fil powerand speed l Requires installation otyourown radloandtersotiware Desitned tori-i 6 cellsat 3t amps St amps peaK servo leads Compatible PCM radiosl Used Rent Measures Racersand NASAtool 15x15s3/4Wt 8 oz $4495lxl5o5Weithtl ozIntroducturyprice$7995 22483 Miuxiux Hilly Ln Yarbo tinds CA 82687 714-892-1393$300 Shipping & Handling per order Orders 800-845-8978Credit Cards accepted TURBO 10 MOTORS 1 ENERGY COMPRESSION TECHNOLOGY 16-14 calm depending en motorl tu 0100 und weight meet powertul motorgeurboe nyatem uvajiable aunem blyweightieuppiooimutely7tez uedcannro dioe over 112 hp 0010 ceiis H esperte cey did witneee euve onetrations Pete Peterson o 84 end perfermeece pskL Model Aviation May85 8 mis i covid climb needy verlical roli way u Model Airtlene News May85 uregeting motor rune et upto tnn wh enough power let 10 tusi buck Jell Rashin Model Airplane News Joiy 85 Power Quips end deruOve cun tutored iv modei end iype xi lhiinglll SPECIAL LiMITCO SALt 1 eu Turbo tO motoroichoice 1 eaSuperbosltO1 ruilol lea P0-35 Olgitul motor continuer end web 140 wire connectors $19800 $550 55H Cutulog $300 Itree wlpurchusel Csii br asniotunce motor type gear ratio end etc piecing order MODEL ELECTRONICS COAR 120817827458e5uO 6th NWFAX 2081 -782-81 88 VISA taunie WA 88117 MASTERCARD FREE CATALOI Klingberg Wing 78-in span flying wing elec gas conversions piano $45 $5 S&H Get catalog home famous Klingberg Wing Find out about new Rocket Wing Sport Wing along will other kits accessories great wood prices Send long SASE catalog 1256 Prescott Ave # 2 Sunnyvale CA 94089 408735-8260 VoiceIFAX Ft,rw FllehCiO lana November 1995 79
Edition: Model Aviation - 1995/11
Page Numbers: 74, 76, 78, 79
RADIO CONTROL ELECTRICS U MONTHS TOPICS include meet announcement two reminders new catalog E-Motion large small power systems Dallas Electric Flyers DEAF has announced its Ninth Annual Electric Fly-in September 30-October 1 Dallas RC Field Seagoville TX near Dallas addition events will sell/swap bazaar free Saturday night buffet free DEAF Fly-In mug Electric folks friendliest Get details CD Frank Korman 9354 Forrest Hills Blvd Dallas TX 75218 Tel 214 327-8411 Please dont forget have power help shape column future September column asked input what needs interests likes/dislikes Electric column like/want newproduct announcements meet announcements meet reports beginner stuff high-tech stuff how-to something havent thought Please let deepest secret E-column wishesand knows may happen please dont forget columns club call Please see September October columns details Dont let club left outNovember its way dont know folks Hobby Lobby continue outdo themselves new HL catalog jam-packed masterpiece E-content surely cant beat HL folks have added numerous new Electric items already extensive selection including airplanes motors gear drives helicopter etc cover work art too Get HL Catalog $250 Hobby Lobby International 5614 Franklin Pike Circle Brentwood TN 37027 Tel 615 373-1444 get $6 voucher 74 Model Aviation 4Under hood E-Motion Model Electronics Plus Turbo 10 E-Motion 6-10-cell gear drive systems Weighs 44-52 ounces 61 gears Flightec SP BEG controller floor depending power system used Electric models fly sizes Tiny 18-ounce Micro-E Dick Miller presses Tom Hunts 16-pound quarter-scale Cub submission Sig Seniorita twin Canadas Jeff Miller Astro geared 15s 24 Vintage Midwest trio Esquires Everett Rubendunst has 02cells ailerons weighs 7 pounds 12 ounces 25 power weighs 32-1 20 ounces purchase catalog cant possibly go wrong Alternatively catalog free regular customers orders As mentioned May column Ive working new six-to-tencell Electric design use small geared systems market such Master Airscrew Model Electronics American Fun Fly Astro roll own variety based car motors photo shows just-finished E-Motion another gives look inside E-Motion 400-square-inch configuration looks somewhat like slope soarer has NACA 2412 section rather large strip ailerons goes Ive use about 10 days write Ive already checked out over 6-10 cell range motor prop mixture including Master Airscrews home-brew car motor Model Electronics Turbo Plus 10 61 ratio particular note latter system 10 cells Sonic Tronics 13 x 7 long hub climb absolutely sizzling 49 ounces ascent quite vertical close Its quite bit docile still very flyable less-impressive systems has something everybody including growth opportunity E Motion very exciting experimental point view still have lots power combos try including some Astros American Fun Fly new Aveox Thats what keeps going E-xcitement June 1995 LVRCS Meet near Easton PA brought out its usual exciting attendance nice casual meet run fine folks great flying site photo particular need further comment two airplanes depicting large small Electric RC photo opportunity presented itself quite coincidence just after finished writing October column column offered some thoughts regarding just large just tiny Electric models can Lets begin biggie Tom Hunt ouffitted previously-built Nosen quarter-scale Cub ModelAir-Tech dual-motor belt-drive unit driven two 12-volt version Speed 700s Hobby Lobby No attempt made lighten 16-pound craft easily flies 32 SR l500sanda2O xli fan Thelatterturns at4000rpmwitha20-amp NEW BIG Lazy Bee finally BI LAZY BEE modelers fly BIG planes has same amazing low speed flying characteristics the60 WINGWING 41094119 smaller Lazy Bee amazing character istics Cox decided manufacture Cox RTF Lazy Bee under license us E SHIPPING INSIDE USA could go on about tight turns short take-The Big Plane can Fly Small Places offs snap rolls hands-off stability gives itFlys Juat Like Original Lazy Bee ability self-recover attitude superAccepts 25 45 2-cycle Electric 45 slow stall speed Seeing is70 4-Cycle Believing Get 35 mm video see the Super Low Wing Loading 78 112 os/sq Itt BIG Wing Area Over 5 Sq Ft Std 50 Wing Lazy Bee perform aerobatics taxi over 2 x 10 Sq Ft 72 Extended Wingl fly floats gas & electric power fly in Optional Removable Tail Easy Transport formation ducks morel New low price Optional eolt-on Wing just $10 including shippingit includes computer drawn plans covering itterns detailed instruction book Pre-cut Balsa xl Pluversord macto rarhrxxr fiher stainless steel tor windows TIlE OX READY-TO-FLY Just shake out box go flying huge wing Standard 40 wino Kit $54 Extended Wing 48 wino Kit $60 Float Kit $24 makes ideal beginners Experts will enjoy respon sive oversized control surfaces Low Price Guarantee will 049 powered 39 span radio ONLY $109FREE SHIPPISO IN USbeat advertised OR 2 channel 27 MHz 2-stick radio $179 FREE SHIRPISO IN USLazy Bee Priceal Prices include Priority Mail ~shipping Convert land st plane 2 minutesl improved Lazy Bee kits feature New computer drawn plans espsnded instruction hook optional bolt-on wing & removable tail quick socess battery door electric flyers recom mend 40 version moat glow engines aerobatics snd 48 entended wing training gliding four-cycle engines electric power 3NWILID WA New! Iectrification ombination Only $119For Quick Service Call carry full lineal great inflatehie wheels lS500InCOeSerlOUOesvlecrtoombonsculortvxdvLauyexxhanelleo[v32][b1723297492125320]]CLANCY AVIATION wesome snockabosrbinq shility light aeght have made reedrsner staneuflpeg eleonic irchneos essteyrsceoo 05 gearmive mots,OU 6491534219 W 2nd AVE modelers whs demand best AsrrsPigvt2rnmicrnopeedmorrni7mllsaoynroodmerEenerypechAP[v32][b1681302292025700]] H em 105pm MST M-F MESA AZ 85210-1317 te 6 diameter far pmp HiTec peek detector neck cOarse system giveeeeeorin5 mjoato cenoiTosesucos cesnes vccnrno sizes tnI lull thenie loops roid hammerheods etc acfr lor5er flight relaxed HPar info send oar nec catalos 92 Free catalog rhronled hacir Oreat flootfipirs toe aecirs Oxijeciog rhe video vase ALL PRICES IPtCL5OE OHIPPIttO lesion THE 55 76 Model Aviation Jennifer Lumley holds Chris Trues 171/2-ounce Graupner Mini Viper Six-volt Speed 400 seven KR 1000 AEs EEEEE A4 way have hard time reading tiny orint really shoald get Lazy Bee easy t Matchedl700SCRClndCeIls $550 SANYO N270 AA md Cells $250 SANYO Ni 700 SCRC Ind Cells $450 SANYO 600 AA Rechargeable $150 SANYO N1400 SCR md Cells $300 4 Cell 270 AA Receiver Pk $1000 SANYO Ni 000 SCR md Cells $350 5 Cell 1000 AE Receiver Pk $1800 SANYO N600 SCR Ind Cells $350 SANYO N800 AR md Cells $350 WIRE SHRINK SANYO KR600 AE md Cells $250 BARS AND BRAIDS AVAILABLE draw Its majestic Tom half Hunt-Aberle team forms ModelAir TechThis Cub held pressed ground Dick Millers 16-inch Micro-E designed Don Srull Two 50-mAh cells power HiLine Micro 4 motor turning 3-inch prop Rudder-only guidance provided very tiny CETO radio discussed last month all-up weight 18 ounces Remember position flies can flown Electric Several months ago opened up topic power-system basics included some discussion motors props batteries topic prompted some ongoing confusion appears mail fliglitline Electric motors tend turn rpm directly related applied voltage principle means double voltage motor will spin twice fast fact motor parameter called K vthe rpm per volt constant dictates behavior typical number motors might 2000 example motor would turn 2000 rpm volt applied practice motor RPM falls somewhat short rulesort volt equation just applied battery voltage rather its applied voltage minus voltage loss due current flow winding resistance motor highquality motors having few turns very heavy wire loss minimal motor heating rpm closely tracks actual applled motor terminal voltage August issue included graph motor voltage current rpm review graph youll see rpm curve does quite track linear voltage ramp-up shown rpm curve nearly linearbut quite typical illustration behavior motor voltage rpm goodquality motor Earlier discussions motor current drain very low unloaded no prop motor shaft spinning prop moving air load motor indeed its whole idea behind E flight takes power move air model motor input current rises rapidly prop size andlor rpm larger prop turns faster moves air does work becomes heavier load motor Thus given applied voltage number cells oaly way motor can tarn larger prop drive heavier load demand input currentTo turn particular prop faster motor requires voltage cunent Given typical model flightline has fixed number cells installed getting out can achieved increasing prop size must carefully considered move because bigger prop always dictates motor current some point motor current can become excessive point being destructive some current level damage will resultusually brushes brush springs and/or commutator Current offender because its current causes motor heat 78 Model Aviation 4WEfMNWJEWAVMWLUMWWHLEWtVJYMUI ~aerM deIcIzo P47 24 UBERATOR* __24 NOT INCLUDED 12 Exciting wwiuy nIuuIu w urn i unwzu w WWH uuuiiy pturunj Ill EUN WIR tUMID IIIW Ilium INCLUDES Full instructIons histoilcal notes clear plastIc prop disks Accurate detall carefully designed mbly Makes fantastic mobile OR create own minIature Air Museum Scale IS approx 172 SatisfactIon always Guaranteed AvalWle Air Mieseums directly aeg formula current squared times motor resistance r lost heat Doubling current causes four times heat principle usually practice other way get out Adding cells dropping prop size way increase motor operating power much risk damage idea maintain motor current some safe level using smaller prop increasing voltage Remember motor power input product motor terminal voltage current current primary risk factor Increasing voltage some cells maintaining safe current level dropping prop size trickbeing mindful added cell weight course some point given model may perform better smaller faster prop same would true plane wet- rubber-powered idea really simple little first hand practice will quickly drive point home easily done assist current meter least can strongly recommend Astro digital ammeter/voltmeter catalog number 100 available discounted less $50 little meter simply plugs motor circuit airplane bench can switch reading motor voltage reading motor current can quickly determine motor input power its bit much wallet think terms motors wont destroy experiment new planes power systems team up buddy share expense necessary can also use conventional current shunt separate meter may already have Please refer January 1993 column details power systems Ive just tried E-Motion economy motor wanted operate around 20 amps also wanted use 10 cells Using guideline 11-volts-per-cell operating voltage flight would give motor input power level about 220 watts wanted see E Motion would perform 200 watts little charged up pack tried three props included Sonic-Tronics 12 x 7 longhub folder Master Airscrew 12 x 8 folder Sonic-Tronics 13 x 7 long-hub folder Astro meter plugged circuit between speed control motor carefully ran up throttle few seconds noted following values order 215 24 265 amps what wanted went first prop Clearly could same sort thing other condition preferences such different cell counts and/or different preferred current actually tried three props short time just see E-Motion performed definitely performed differently among choices power system basics future Thus ends another column Please enjoy Fall Electric flying flying better cool dry air performance longer way works enclose SASE correspondence youd like reply power reliability affordable servos TAKE COMMAND Compare value features quality youll see more modelers choose Hobbico Command servos cars planes boats hells micro 1/4 scale get MORE performance LESS money So next time youre market servos dont take chances. take Commandl No matter what application theres Hobbico Command servo thats right Deluxe CS-55 aded CS-51 bearings Dual BB 05-67 ision servo dual ball bearings smooth operation 1/4 Scale 05-72 -torque servo thats perfect large scale aircraft Micro OS-il ltra compact lightweight high speed servo Mini CS-31 l-size servo thats ideal electric hells planes Standard OS-51 est seller wide range applications Law-Profile OS-63 compact high-torque retract servo fitsriOBBICO tight spacesCOMMA NDgervog location dealer nearest please call 1 800 682 8948 mention code #0470 Gear Door Cycler Battery Backer Exactly chat need for Best way insure reliable split retractdoorsequenc- power model Use let like P-51 Met- with 2 packs Reins main tact & other aircraft includ- packthen switchesto backleg jetsl Install a op pack Works stan Y connector retract dard 4 cell 5 cell Gel-Cell channel Controls tear door packs Battery packs can servos time in- ditferentcapacitylikeal200 tractswitchisusedupordown geardoorsopentorafew & 600 Solid state desito secondsandthencloseataini Oelaytimeisadjestablefrow uses MOSFET transistors Yoo add own switch har 1 9 seconds 1 551 553/4 1/2 oz $39 95testes w n 1 5x1 5s3 4 Weths 8 oz $49 95 GLITCH Buster Mini-Max Throttle Optically isolate 6 chanThe microprocessor con nels use separate bat-trolled super-small MINI tery pack tor terseMAX features hith-rate no powerl Totally eliminatesadjustment auto-setup soft tlitchint caused heavystart hrake throttle-tuard duty servos loot leadswontstartitarmed stick can use 45 6 cellsleon position motor-oft fail servo side extrasate esteesive tlitch fil powerand speed l Requires installation otyourown radloandtersotiware Desitned tori-i 6 cellsat 3t amps St amps peaK servo leads Compatible PCM radiosl Used Rent Measures Racersand NASAtool 15x15s3/4Wt 8 oz $4495lxl5o5Weithtl ozIntroducturyprice$7995 22483 Miuxiux Hilly Ln Yarbo tinds CA 82687 714-892-1393$300 Shipping & Handling per order Orders 800-845-8978Credit Cards accepted TURBO 10 MOTORS 1 ENERGY COMPRESSION TECHNOLOGY 16-14 calm depending en motorl tu 0100 und weight meet powertul motorgeurboe nyatem uvajiable aunem blyweightieuppiooimutely7tez uedcannro dioe over 112 hp 0010 ceiis H esperte cey did witneee euve onetrations Pete Peterson o 84 end perfermeece pskL Model Aviation May85 8 mis i covid climb needy verlical roli way u Model Airtlene News May85 uregeting motor rune et upto tnn wh enough power let 10 tusi buck Jell Rashin Model Airplane News Joiy 85 Power Quips end deruOve cun tutored iv modei end iype xi lhiinglll SPECIAL LiMITCO SALt 1 eu Turbo tO motoroichoice 1 eaSuperbosltO1 ruilol lea P0-35 Olgitul motor continuer end web 140 wire connectors $19800 $550 55H Cutulog $300 Itree wlpurchusel Csii br asniotunce motor type gear ratio end etc piecing order MODEL ELECTRONICS COAR 120817827458e5uO 6th NWFAX 2081 -782-81 88 VISA taunie WA 88117 MASTERCARD FREE CATALOI Klingberg Wing 78-in span flying wing elec gas conversions piano $45 $5 S&H Get catalog home famous Klingberg Wing Find out about new Rocket Wing Sport Wing along will other kits accessories great wood prices Send long SASE catalog 1256 Prescott Ave # 2 Sunnyvale CA 94089 408735-8260 VoiceIFAX Ft,rw FllehCiO lana November 1995 79
Edition: Model Aviation - 1995/11
Page Numbers: 74, 76, 78, 79
RADIO CONTROL ELECTRICS U MONTHS TOPICS include meet announcement two reminders new catalog E-Motion large small power systems Dallas Electric Flyers DEAF has announced its Ninth Annual Electric Fly-in September 30-October 1 Dallas RC Field Seagoville TX near Dallas addition events will sell/swap bazaar free Saturday night buffet free DEAF Fly-In mug Electric folks friendliest Get details CD Frank Korman 9354 Forrest Hills Blvd Dallas TX 75218 Tel 214 327-8411 Please dont forget have power help shape column future September column asked input what needs interests likes/dislikes Electric column like/want newproduct announcements meet announcements meet reports beginner stuff high-tech stuff how-to something havent thought Please let deepest secret E-column wishesand knows may happen please dont forget columns club call Please see September October columns details Dont let club left outNovember its way dont know folks Hobby Lobby continue outdo themselves new HL catalog jam-packed masterpiece E-content surely cant beat HL folks have added numerous new Electric items already extensive selection including airplanes motors gear drives helicopter etc cover work art too Get HL Catalog $250 Hobby Lobby International 5614 Franklin Pike Circle Brentwood TN 37027 Tel 615 373-1444 get $6 voucher 74 Model Aviation 4Under hood E-Motion Model Electronics Plus Turbo 10 E-Motion 6-10-cell gear drive systems Weighs 44-52 ounces 61 gears Flightec SP BEG controller floor depending power system used Electric models fly sizes Tiny 18-ounce Micro-E Dick Miller presses Tom Hunts 16-pound quarter-scale Cub submission Sig Seniorita twin Canadas Jeff Miller Astro geared 15s 24 Vintage Midwest trio Esquires Everett Rubendunst has 02cells ailerons weighs 7 pounds 12 ounces 25 power weighs 32-1 20 ounces purchase catalog cant possibly go wrong Alternatively catalog free regular customers orders As mentioned May column Ive working new six-to-tencell Electric design use small geared systems market such Master Airscrew Model Electronics American Fun Fly Astro roll own variety based car motors photo shows just-finished E-Motion another gives look inside E-Motion 400-square-inch configuration looks somewhat like slope soarer has NACA 2412 section rather large strip ailerons goes Ive use about 10 days write Ive already checked out over 6-10 cell range motor prop mixture including Master Airscrews home-brew car motor Model Electronics Turbo Plus 10 61 ratio particular note latter system 10 cells Sonic Tronics 13 x 7 long hub climb absolutely sizzling 49 ounces ascent quite vertical close Its quite bit docile still very flyable less-impressive systems has something everybody including growth opportunity E Motion very exciting experimental point view still have lots power combos try including some Astros American Fun Fly new Aveox Thats what keeps going E-xcitement June 1995 LVRCS Meet near Easton PA brought out its usual exciting attendance nice casual meet run fine folks great flying site photo particular need further comment two airplanes depicting large small Electric RC photo opportunity presented itself quite coincidence just after finished writing October column column offered some thoughts regarding just large just tiny Electric models can Lets begin biggie Tom Hunt ouffitted previously-built Nosen quarter-scale Cub ModelAir-Tech dual-motor belt-drive unit driven two 12-volt version Speed 700s Hobby Lobby No attempt made lighten 16-pound craft easily flies 32 SR l500sanda2O xli fan Thelatterturns at4000rpmwitha20-amp NEW BIG Lazy Bee finally BI LAZY BEE modelers fly BIG planes has same amazing low speed flying characteristics the60 WINGWING 41094119 smaller Lazy Bee amazing character istics Cox decided manufacture Cox RTF Lazy Bee under license us E SHIPPING INSIDE USA could go on about tight turns short take-The Big Plane can Fly Small Places offs snap rolls hands-off stability gives itFlys Juat Like Original Lazy Bee ability self-recover attitude superAccepts 25 45 2-cycle Electric 45 slow stall speed Seeing is70 4-Cycle Believing Get 35 mm video see the Super Low Wing Loading 78 112 os/sq Itt BIG Wing Area Over 5 Sq Ft Std 50 Wing Lazy Bee perform aerobatics taxi over 2 x 10 Sq Ft 72 Extended Wingl fly floats gas & electric power fly in Optional Removable Tail Easy Transport formation ducks morel New low price Optional eolt-on Wing just $10 including shippingit includes computer drawn plans covering itterns detailed instruction book Pre-cut Balsa xl Pluversord macto rarhrxxr fiher stainless steel tor windows TIlE OX READY-TO-FLY Just shake out box go flying huge wing Standard 40 wino Kit $54 Extended Wing 48 wino Kit $60 Float Kit $24 makes ideal beginners Experts will enjoy respon sive oversized control surfaces Low Price Guarantee will 049 powered 39 span radio ONLY $109FREE SHIPPISO IN USbeat advertised OR 2 channel 27 MHz 2-stick radio $179 FREE SHIRPISO IN USLazy Bee Priceal Prices include Priority Mail ~shipping Convert land st plane 2 minutesl improved Lazy Bee kits feature New computer drawn plans espsnded instruction hook optional bolt-on wing & removable tail quick socess battery door electric flyers recom mend 40 version moat glow engines aerobatics snd 48 entended wing training gliding four-cycle engines electric power 3NWILID WA New! Iectrification ombination Only $119For Quick Service Call carry full lineal great inflatehie wheels lS500InCOeSerlOUOesvlecrtoombonsculortvxdvLauyexxhanelleo[v32][b1723297492125320]]CLANCY AVIATION wesome snockabosrbinq shility light aeght have made reedrsner staneuflpeg eleonic irchneos essteyrsceoo 05 gearmive mots,OU 6491534219 W 2nd AVE modelers whs demand best AsrrsPigvt2rnmicrnopeedmorrni7mllsaoynroodmerEenerypechAP[v32][b1681302292025700]] H em 105pm MST M-F MESA AZ 85210-1317 te 6 diameter far pmp HiTec peek detector neck cOarse system giveeeeeorin5 mjoato cenoiTosesucos cesnes vccnrno sizes tnI lull thenie loops roid hammerheods etc acfr lor5er flight relaxed HPar info send oar nec catalos 92 Free catalog rhronled hacir Oreat flootfipirs toe aecirs Oxijeciog rhe video vase ALL PRICES IPtCL5OE OHIPPIttO lesion THE 55 76 Model Aviation Jennifer Lumley holds Chris Trues 171/2-ounce Graupner Mini Viper Six-volt Speed 400 seven KR 1000 AEs EEEEE A4 way have hard time reading tiny orint really shoald get Lazy Bee easy t Matchedl700SCRClndCeIls $550 SANYO N270 AA md Cells $250 SANYO Ni 700 SCRC Ind Cells $450 SANYO 600 AA Rechargeable $150 SANYO N1400 SCR md Cells $300 4 Cell 270 AA Receiver Pk $1000 SANYO Ni 000 SCR md Cells $350 5 Cell 1000 AE Receiver Pk $1800 SANYO N600 SCR Ind Cells $350 SANYO N800 AR md Cells $350 WIRE SHRINK SANYO KR600 AE md Cells $250 BARS AND BRAIDS AVAILABLE draw Its majestic Tom half Hunt-Aberle team forms ModelAir TechThis Cub held pressed ground Dick Millers 16-inch Micro-E designed Don Srull Two 50-mAh cells power HiLine Micro 4 motor turning 3-inch prop Rudder-only guidance provided very tiny CETO radio discussed last month all-up weight 18 ounces Remember position flies can flown Electric Several months ago opened up topic power-system basics included some discussion motors props batteries topic prompted some ongoing confusion appears mail fliglitline Electric motors tend turn rpm directly related applied voltage principle means double voltage motor will spin twice fast fact motor parameter called K vthe rpm per volt constant dictates behavior typical number motors might 2000 example motor would turn 2000 rpm volt applied practice motor RPM falls somewhat short rulesort volt equation just applied battery voltage rather its applied voltage minus voltage loss due current flow winding resistance motor highquality motors having few turns very heavy wire loss minimal motor heating rpm closely tracks actual applled motor terminal voltage August issue included graph motor voltage current rpm review graph youll see rpm curve does quite track linear voltage ramp-up shown rpm curve nearly linearbut quite typical illustration behavior motor voltage rpm goodquality motor Earlier discussions motor current drain very low unloaded no prop motor shaft spinning prop moving air load motor indeed its whole idea behind E flight takes power move air model motor input current rises rapidly prop size andlor rpm larger prop turns faster moves air does work becomes heavier load motor Thus given applied voltage number cells oaly way motor can tarn larger prop drive heavier load demand input currentTo turn particular prop faster motor requires voltage cunent Given typical model flightline has fixed number cells installed getting out can achieved increasing prop size must carefully considered move because bigger prop always dictates motor current some point motor current can become excessive point being destructive some current level damage will resultusually brushes brush springs and/or commutator Current offender because its current causes motor heat 78 Model Aviation 4WEfMNWJEWAVMWLUMWWHLEWtVJYMUI ~aerM deIcIzo P47 24 UBERATOR* __24 NOT INCLUDED 12 Exciting wwiuy nIuuIu w urn i unwzu w WWH uuuiiy pturunj Ill EUN WIR tUMID IIIW Ilium INCLUDES Full instructIons histoilcal notes clear plastIc prop disks Accurate detall carefully designed mbly Makes fantastic mobile OR create own minIature Air Museum Scale IS approx 172 SatisfactIon always Guaranteed AvalWle Air Mieseums directly aeg formula current squared times motor resistance r lost heat Doubling current causes four times heat principle usually practice other way get out Adding cells dropping prop size way increase motor operating power much risk damage idea maintain motor current some safe level using smaller prop increasing voltage Remember motor power input product motor terminal voltage current current primary risk factor Increasing voltage some cells maintaining safe current level dropping prop size trickbeing mindful added cell weight course some point given model may perform better smaller faster prop same would true plane wet- rubber-powered idea really simple little first hand practice will quickly drive point home easily done assist current meter least can strongly recommend Astro digital ammeter/voltmeter catalog number 100 available discounted less $50 little meter simply plugs motor circuit airplane bench can switch reading motor voltage reading motor current can quickly determine motor input power its bit much wallet think terms motors wont destroy experiment new planes power systems team up buddy share expense necessary can also use conventional current shunt separate meter may already have Please refer January 1993 column details power systems Ive just tried E-Motion economy motor wanted operate around 20 amps also wanted use 10 cells Using guideline 11-volts-per-cell operating voltage flight would give motor input power level about 220 watts wanted see E Motion would perform 200 watts little charged up pack tried three props included Sonic-Tronics 12 x 7 longhub folder Master Airscrew 12 x 8 folder Sonic-Tronics 13 x 7 long-hub folder Astro meter plugged circuit between speed control motor carefully ran up throttle few seconds noted following values order 215 24 265 amps what wanted went first prop Clearly could same sort thing other condition preferences such different cell counts and/or different preferred current actually tried three props short time just see E-Motion performed definitely performed differently among choices power system basics future Thus ends another column Please enjoy Fall Electric flying flying better cool dry air performance longer way works enclose SASE correspondence youd like reply power reliability affordable servos TAKE COMMAND Compare value features quality youll see more modelers choose Hobbico Command servos cars planes boats hells micro 1/4 scale get MORE performance LESS money So next time youre market servos dont take chances. take Commandl No matter what application theres Hobbico Command servo thats right Deluxe CS-55 aded CS-51 bearings Dual BB 05-67 ision servo dual ball bearings smooth operation 1/4 Scale 05-72 -torque servo thats perfect large scale aircraft Micro OS-il ltra compact lightweight high speed servo Mini CS-31 l-size servo thats ideal electric hells planes Standard OS-51 est seller wide range applications Law-Profile OS-63 compact high-torque retract servo fitsriOBBICO tight spacesCOMMA NDgervog location dealer nearest please call 1 800 682 8948 mention code #0470 Gear Door Cycler Battery Backer Exactly chat need for Best way insure reliable split retractdoorsequenc- power model Use let like P-51 Met- with 2 packs Reins main tact & other aircraft includ- packthen switchesto backleg jetsl Install a op pack Works stan Y connector retract dard 4 cell 5 cell Gel-Cell channel Controls tear door packs Battery packs can servos time in- ditferentcapacitylikeal200 tractswitchisusedupordown geardoorsopentorafew & 600 Solid state desito secondsandthencloseataini Oelaytimeisadjestablefrow uses MOSFET transistors Yoo add own switch har 1 9 seconds 1 551 553/4 1/2 oz $39 95testes w n 1 5x1 5s3 4 Weths 8 oz $49 95 GLITCH Buster Mini-Max Throttle Optically isolate 6 chanThe microprocessor con nels use separate bat-trolled super-small MINI tery pack tor terseMAX features hith-rate no powerl Totally eliminatesadjustment auto-setup soft tlitchint caused heavystart hrake throttle-tuard duty servos loot leadswontstartitarmed stick can use 45 6 cellsleon position motor-oft fail servo side extrasate esteesive tlitch fil powerand speed l Requires installation otyourown radloandtersotiware Desitned tori-i 6 cellsat 3t amps St amps peaK servo leads Compatible PCM radiosl Used Rent Measures Racersand NASAtool 15x15s3/4Wt 8 oz $4495lxl5o5Weithtl ozIntroducturyprice$7995 22483 Miuxiux Hilly Ln Yarbo tinds CA 82687 714-892-1393$300 Shipping & Handling per order Orders 800-845-8978Credit Cards accepted TURBO 10 MOTORS 1 ENERGY COMPRESSION TECHNOLOGY 16-14 calm depending en motorl tu 0100 und weight meet powertul motorgeurboe nyatem uvajiable aunem blyweightieuppiooimutely7tez uedcannro dioe over 112 hp 0010 ceiis H esperte cey did witneee euve onetrations Pete Peterson o 84 end perfermeece pskL Model Aviation May85 8 mis i covid climb needy verlical roli way u Model Airtlene News May85 uregeting motor rune et upto tnn wh enough power let 10 tusi buck Jell Rashin Model Airplane News Joiy 85 Power Quips end deruOve cun tutored iv modei end iype xi lhiinglll SPECIAL LiMITCO SALt 1 eu Turbo tO motoroichoice 1 eaSuperbosltO1 ruilol lea P0-35 Olgitul motor continuer end web 140 wire connectors $19800 $550 55H Cutulog $300 Itree wlpurchusel Csii br asniotunce motor type gear ratio end etc piecing order MODEL ELECTRONICS COAR 120817827458e5uO 6th NWFAX 2081 -782-81 88 VISA taunie WA 88117 MASTERCARD FREE CATALOI Klingberg Wing 78-in span flying wing elec gas conversions piano $45 $5 S&H Get catalog home famous Klingberg Wing Find out about new Rocket Wing Sport Wing along will other kits accessories great wood prices Send long SASE catalog 1256 Prescott Ave # 2 Sunnyvale CA 94089 408735-8260 VoiceIFAX Ft,rw FllehCiO lana November 1995 79
Edition: Model Aviation - 1995/11
Page Numbers: 74, 76, 78, 79
RADIO CONTROL ELECTRICS U MONTHS TOPICS include meet announcement two reminders new catalog E-Motion large small power systems Dallas Electric Flyers DEAF has announced its Ninth Annual Electric Fly-in September 30-October 1 Dallas RC Field Seagoville TX near Dallas addition events will sell/swap bazaar free Saturday night buffet free DEAF Fly-In mug Electric folks friendliest Get details CD Frank Korman 9354 Forrest Hills Blvd Dallas TX 75218 Tel 214 327-8411 Please dont forget have power help shape column future September column asked input what needs interests likes/dislikes Electric column like/want newproduct announcements meet announcements meet reports beginner stuff high-tech stuff how-to something havent thought Please let deepest secret E-column wishesand knows may happen please dont forget columns club call Please see September October columns details Dont let club left outNovember its way dont know folks Hobby Lobby continue outdo themselves new HL catalog jam-packed masterpiece E-content surely cant beat HL folks have added numerous new Electric items already extensive selection including airplanes motors gear drives helicopter etc cover work art too Get HL Catalog $250 Hobby Lobby International 5614 Franklin Pike Circle Brentwood TN 37027 Tel 615 373-1444 get $6 voucher 74 Model Aviation 4Under hood E-Motion Model Electronics Plus Turbo 10 E-Motion 6-10-cell gear drive systems Weighs 44-52 ounces 61 gears Flightec SP BEG controller floor depending power system used Electric models fly sizes Tiny 18-ounce Micro-E Dick Miller presses Tom Hunts 16-pound quarter-scale Cub submission Sig Seniorita twin Canadas Jeff Miller Astro geared 15s 24 Vintage Midwest trio Esquires Everett Rubendunst has 02cells ailerons weighs 7 pounds 12 ounces 25 power weighs 32-1 20 ounces purchase catalog cant possibly go wrong Alternatively catalog free regular customers orders As mentioned May column Ive working new six-to-tencell Electric design use small geared systems market such Master Airscrew Model Electronics American Fun Fly Astro roll own variety based car motors photo shows just-finished E-Motion another gives look inside E-Motion 400-square-inch configuration looks somewhat like slope soarer has NACA 2412 section rather large strip ailerons goes Ive use about 10 days write Ive already checked out over 6-10 cell range motor prop mixture including Master Airscrews home-brew car motor Model Electronics Turbo Plus 10 61 ratio particular note latter system 10 cells Sonic Tronics 13 x 7 long hub climb absolutely sizzling 49 ounces ascent quite vertical close Its quite bit docile still very flyable less-impressive systems has something everybody including growth opportunity E Motion very exciting experimental point view still have lots power combos try including some Astros American Fun Fly new Aveox Thats what keeps going E-xcitement June 1995 LVRCS Meet near Easton PA brought out its usual exciting attendance nice casual meet run fine folks great flying site photo particular need further comment two airplanes depicting large small Electric RC photo opportunity presented itself quite coincidence just after finished writing October column column offered some thoughts regarding just large just tiny Electric models can Lets begin biggie Tom Hunt ouffitted previously-built Nosen quarter-scale Cub ModelAir-Tech dual-motor belt-drive unit driven two 12-volt version Speed 700s Hobby Lobby No attempt made lighten 16-pound craft easily flies 32 SR l500sanda2O xli fan Thelatterturns at4000rpmwitha20-amp NEW BIG Lazy Bee finally BI LAZY BEE modelers fly BIG planes has same amazing low speed flying characteristics the60 WINGWING 41094119 smaller Lazy Bee amazing character istics Cox decided manufacture Cox RTF Lazy Bee under license us E SHIPPING INSIDE USA could go on about tight turns short take-The Big Plane can Fly Small Places offs snap rolls hands-off stability gives itFlys Juat Like Original Lazy Bee ability self-recover attitude superAccepts 25 45 2-cycle Electric 45 slow stall speed Seeing is70 4-Cycle Believing Get 35 mm video see the Super Low Wing Loading 78 112 os/sq Itt BIG Wing Area Over 5 Sq Ft Std 50 Wing Lazy Bee perform aerobatics taxi over 2 x 10 Sq Ft 72 Extended Wingl fly floats gas & electric power fly in Optional Removable Tail Easy Transport formation ducks morel New low price Optional eolt-on Wing just $10 including shippingit includes computer drawn plans covering itterns detailed instruction book Pre-cut Balsa xl Pluversord macto rarhrxxr fiher stainless steel tor windows TIlE OX READY-TO-FLY Just shake out box go flying huge wing Standard 40 wino Kit $54 Extended Wing 48 wino Kit $60 Float Kit $24 makes ideal beginners Experts will enjoy respon sive oversized control surfaces Low Price Guarantee will 049 powered 39 span radio ONLY $109FREE SHIPPISO IN USbeat advertised OR 2 channel 27 MHz 2-stick radio $179 FREE SHIRPISO IN USLazy Bee Priceal Prices include Priority Mail ~shipping Convert land st plane 2 minutesl improved Lazy Bee kits feature New computer drawn plans espsnded instruction hook optional bolt-on wing & removable tail quick socess battery door electric flyers recom mend 40 version moat glow engines aerobatics snd 48 entended wing training gliding four-cycle engines electric power 3NWILID WA New! Iectrification ombination Only $119For Quick Service Call carry full lineal great inflatehie wheels lS500InCOeSerlOUOesvlecrtoombonsculortvxdvLauyexxhanelleo[v32][b1723297492125320]]CLANCY AVIATION wesome snockabosrbinq shility light aeght have made reedrsner staneuflpeg eleonic irchneos essteyrsceoo 05 gearmive mots,OU 6491534219 W 2nd AVE modelers whs demand best AsrrsPigvt2rnmicrnopeedmorrni7mllsaoynroodmerEenerypechAP[v32][b1681302292025700]] H em 105pm MST M-F MESA AZ 85210-1317 te 6 diameter far pmp HiTec peek detector neck cOarse system giveeeeeorin5 mjoato cenoiTosesucos cesnes vccnrno sizes tnI lull thenie loops roid hammerheods etc acfr lor5er flight relaxed HPar info send oar nec catalos 92 Free catalog rhronled hacir Oreat flootfipirs toe aecirs Oxijeciog rhe video vase ALL PRICES IPtCL5OE OHIPPIttO lesion THE 55 76 Model Aviation Jennifer Lumley holds Chris Trues 171/2-ounce Graupner Mini Viper Six-volt Speed 400 seven KR 1000 AEs EEEEE A4 way have hard time reading tiny orint really shoald get Lazy Bee easy t Matchedl700SCRClndCeIls $550 SANYO N270 AA md Cells $250 SANYO Ni 700 SCRC Ind Cells $450 SANYO 600 AA Rechargeable $150 SANYO N1400 SCR md Cells $300 4 Cell 270 AA Receiver Pk $1000 SANYO Ni 000 SCR md Cells $350 5 Cell 1000 AE Receiver Pk $1800 SANYO N600 SCR Ind Cells $350 SANYO N800 AR md Cells $350 WIRE SHRINK SANYO KR600 AE md Cells $250 BARS AND BRAIDS AVAILABLE draw Its majestic Tom half Hunt-Aberle team forms ModelAir TechThis Cub held pressed ground Dick Millers 16-inch Micro-E designed Don Srull Two 50-mAh cells power HiLine Micro 4 motor turning 3-inch prop Rudder-only guidance provided very tiny CETO radio discussed last month all-up weight 18 ounces Remember position flies can flown Electric Several months ago opened up topic power-system basics included some discussion motors props batteries topic prompted some ongoing confusion appears mail fliglitline Electric motors tend turn rpm directly related applied voltage principle means double voltage motor will spin twice fast fact motor parameter called K vthe rpm per volt constant dictates behavior typical number motors might 2000 example motor would turn 2000 rpm volt applied practice motor RPM falls somewhat short rulesort volt equation just applied battery voltage rather its applied voltage minus voltage loss due current flow winding resistance motor highquality motors having few turns very heavy wire loss minimal motor heating rpm closely tracks actual applled motor terminal voltage August issue included graph motor voltage current rpm review graph youll see rpm curve does quite track linear voltage ramp-up shown rpm curve nearly linearbut quite typical illustration behavior motor voltage rpm goodquality motor Earlier discussions motor current drain very low unloaded no prop motor shaft spinning prop moving air load motor indeed its whole idea behind E flight takes power move air model motor input current rises rapidly prop size andlor rpm larger prop turns faster moves air does work becomes heavier load motor Thus given applied voltage number cells oaly way motor can tarn larger prop drive heavier load demand input currentTo turn particular prop faster motor requires voltage cunent Given typical model flightline has fixed number cells installed getting out can achieved increasing prop size must carefully considered move because bigger prop always dictates motor current some point motor current can become excessive point being destructive some current level damage will resultusually brushes brush springs and/or commutator Current offender because its current causes motor heat 78 Model Aviation 4WEfMNWJEWAVMWLUMWWHLEWtVJYMUI ~aerM deIcIzo P47 24 UBERATOR* __24 NOT INCLUDED 12 Exciting wwiuy nIuuIu w urn i unwzu w WWH uuuiiy pturunj Ill EUN WIR tUMID IIIW Ilium INCLUDES Full instructIons histoilcal notes clear plastIc prop disks Accurate detall carefully designed mbly Makes fantastic mobile OR create own minIature Air Museum Scale IS approx 172 SatisfactIon always Guaranteed AvalWle Air Mieseums directly aeg formula current squared times motor resistance r lost heat Doubling current causes four times heat principle usually practice other way get out Adding cells dropping prop size way increase motor operating power much risk damage idea maintain motor current some safe level using smaller prop increasing voltage Remember motor power input product motor terminal voltage current current primary risk factor Increasing voltage some cells maintaining safe current level dropping prop size trickbeing mindful added cell weight course some point given model may perform better smaller faster prop same would true plane wet- rubber-powered idea really simple little first hand practice will quickly drive point home easily done assist current meter least can strongly recommend Astro digital ammeter/voltmeter catalog number 100 available discounted less $50 little meter simply plugs motor circuit airplane bench can switch reading motor voltage reading motor current can quickly determine motor input power its bit much wallet think terms motors wont destroy experiment new planes power systems team up buddy share expense necessary can also use conventional current shunt separate meter may already have Please refer January 1993 column details power systems Ive just tried E-Motion economy motor wanted operate around 20 amps also wanted use 10 cells Using guideline 11-volts-per-cell operating voltage flight would give motor input power level about 220 watts wanted see E Motion would perform 200 watts little charged up pack tried three props included Sonic-Tronics 12 x 7 longhub folder Master Airscrew 12 x 8 folder Sonic-Tronics 13 x 7 long-hub folder Astro meter plugged circuit between speed control motor carefully ran up throttle few seconds noted following values order 215 24 265 amps what wanted went first prop Clearly could same sort thing other condition preferences such different cell counts and/or different preferred current actually tried three props short time just see E-Motion performed definitely performed differently among choices power system basics future Thus ends another column Please enjoy Fall Electric flying flying better cool dry air performance longer way works enclose SASE correspondence youd like reply power reliability affordable servos TAKE COMMAND Compare value features quality youll see more modelers choose Hobbico Command servos cars planes boats hells micro 1/4 scale get MORE performance LESS money So next time youre market servos dont take chances. take Commandl No matter what application theres Hobbico Command servo thats right Deluxe CS-55 aded CS-51 bearings Dual BB 05-67 ision servo dual ball bearings smooth operation 1/4 Scale 05-72 -torque servo thats perfect large scale aircraft Micro OS-il ltra compact lightweight high speed servo Mini CS-31 l-size servo thats ideal electric hells planes Standard OS-51 est seller wide range applications Law-Profile OS-63 compact high-torque retract servo fitsriOBBICO tight spacesCOMMA NDgervog location dealer nearest please call 1 800 682 8948 mention code #0470 Gear Door Cycler Battery Backer Exactly chat need for Best way insure reliable split retractdoorsequenc- power model Use let like P-51 Met- with 2 packs Reins main tact & other aircraft includ- packthen switchesto backleg jetsl Install a op pack Works stan Y connector retract dard 4 cell 5 cell Gel-Cell channel Controls tear door packs Battery packs can servos time in- ditferentcapacitylikeal200 tractswitchisusedupordown geardoorsopentorafew & 600 Solid state desito secondsandthencloseataini Oelaytimeisadjestablefrow uses MOSFET transistors Yoo add own switch har 1 9 seconds 1 551 553/4 1/2 oz $39 95testes w n 1 5x1 5s3 4 Weths 8 oz $49 95 GLITCH Buster Mini-Max Throttle Optically isolate 6 chanThe microprocessor con nels use separate bat-trolled super-small MINI tery pack tor terseMAX features hith-rate no powerl Totally eliminatesadjustment auto-setup soft tlitchint caused heavystart hrake throttle-tuard duty servos loot leadswontstartitarmed stick can use 45 6 cellsleon position motor-oft fail servo side extrasate esteesive tlitch fil powerand speed l Requires installation otyourown radloandtersotiware Desitned tori-i 6 cellsat 3t amps St amps peaK servo leads Compatible PCM radiosl Used Rent Measures Racersand NASAtool 15x15s3/4Wt 8 oz $4495lxl5o5Weithtl ozIntroducturyprice$7995 22483 Miuxiux Hilly Ln Yarbo tinds CA 82687 714-892-1393$300 Shipping & Handling per order Orders 800-845-8978Credit Cards accepted TURBO 10 MOTORS 1 ENERGY COMPRESSION TECHNOLOGY 16-14 calm depending en motorl tu 0100 und weight meet powertul motorgeurboe nyatem uvajiable aunem blyweightieuppiooimutely7tez uedcannro dioe over 112 hp 0010 ceiis H esperte cey did witneee euve onetrations Pete Peterson o 84 end perfermeece pskL Model Aviation May85 8 mis i covid climb needy verlical roli way u Model Airtlene News May85 uregeting motor rune et upto tnn wh enough power let 10 tusi buck Jell Rashin Model Airplane News Joiy 85 Power Quips end deruOve cun tutored iv modei end iype xi lhiinglll SPECIAL LiMITCO SALt 1 eu Turbo tO motoroichoice 1 eaSuperbosltO1 ruilol lea P0-35 Olgitul motor continuer end web 140 wire connectors $19800 $550 55H Cutulog $300 Itree wlpurchusel Csii br asniotunce motor type gear ratio end etc piecing order MODEL ELECTRONICS COAR 120817827458e5uO 6th NWFAX 2081 -782-81 88 VISA taunie WA 88117 MASTERCARD FREE CATALOI Klingberg Wing 78-in span flying wing elec gas conversions piano $45 $5 S&H Get catalog home famous Klingberg Wing Find out about new Rocket Wing Sport Wing along will other kits accessories great wood prices Send long SASE catalog 1256 Prescott Ave # 2 Sunnyvale CA 94089 408735-8260 VoiceIFAX Ft,rw FllehCiO lana November 1995 79