THIS very special issue because represents fifth year association Model Aviation Its hard believe first Electric writing appeared Septem ber 1983 issueand seems just like last week September 83 issue first install ment MAs Electric series About Elec trics Originally intended four- five-part effort project grew total 10 install ments wrapping up June 1986 issue Ap parently magazine sales did decline new Electric coverage offered good folks MA asked continue regular monthly column Thus began regular RC Electrics column July 1986 Along way also appeared two con struction articles Spectra November 1984 Mods DC-DC Super Charger Sep tember 1987 Another feature article KRC Electric Fly appeared January 1985 Throughout Ive always tried share Electric fun success Fun what hobby for Electric fun has its own special appeal since sharing fun special fun Im particularly indebted Model Aviation giving opportunity Im equally grateful modeler/read ers have frequently written thanks information other words encourage ment Without no purpose writ ing What follows probably difficult piece Ive written Its attempt five-year index above writing readers have asking such index celebration anniversary index bit unusual Basically its chronological listing sortsbut within topical areas Only main topics given alphabetically subtopics aremore lessgiven timespread fashion means may have look little longer list follows find what want and/or look under topic also means wouldnt classic index fashion Anyway Ive tried very hard include evgry thingand get everything right probably didnt Please forgive errors may cause difficulty Constructing index quite naturally forced reread five-years worth stuff WHEW Thats lot stuffi what came Out effort realization just about still timely mean example much what appeared 1983 part still contemporary fact things outdated materials peculiar products time have survived good because Octo ber 1983 issue wrote Soon Electric products today will come dated will specific how-to examples based dont want series become dated want continue basic value understanding utilization whatever new better products come along Im biased course feel past issues MA still hold value eager Electric mod eler such may want hang Newcomers Electric may want dig back few years see what offered As said theecs lot stuff Now no further rambling Bobs five-year Electric index September 1983 September 1988 1 Basic electricity Part One- voltage current Part Two- Ohms Law power Practical example Part Three- Electric terms sizes Pan Four- meters basic Part Five using multimeter Part Six using multimeter Part Seven using multimeter Part Eight other multimeter parts Part Nine high-current shunt Part Ten special multimeter functions Part Eleven meter effect circuit 2 Batteries chargers charging Kinds12/83 6/84 Cooling12/83 7/86 2/87 10/87 Connections/connectors12/83 7/85 2/88 7/88 Capacitysize12/83 4/87 8/87 Power12/83 7/85 Configurations12/83 Heat12/83 7/86 3/85 4/85 5/85 7/85 8/85 10/85 12/85 2/86 3/86 4/86 5/86 7/86 Life9/84 12/84 Charging12/83 9/84 3/85 5/85 6/85 7/85 5/86 4/87 8/87 1/85 3/85 3/85 9/86 10/86 12/86 10/85 12/85 5/86 10/86 12/87 10/86 9/87 10/87 12/87 4/88 5/88 7/88 12/87 Assembly Charger connections Timer maintenance Advanced Sermos connectors DC-DC Super Charger Sanyo Extra 3 Construction Spectra three-in-one airplane desisnl 11/84 54 Model Aviation Radio Control Electrics Bob Kopsid 25 West End Dr Lansdale PA 19446 wondrous creations workbench Woody Blanchard Above splendid Russian Maxsim Gorky Thirties spans 76 motivated eight rs wingmounted ones VI HY7Os pylon-mounted ones pair Astro 02 cobalts single battery seven 1200-mAh cells runs Below B-17F Memphis Belle Craft weighs 6 lb 3 oz spans 74 powered four Astro 035 cobalts turning 7 x 4 props Twenty 900-mAh cells job Model has Goldberg retracts flaps ailerons elevator rud der throttle control via Robart H0500 ROGs after 50-ft takeoff roll full throttle climbs steeply half throttle See em 88 KRC Electric Fly Cessna AW -scale scratch-built WE Technical Services plans John Mountjoy Winston-Salem NC Motor R-E-A sport cobalt 60 run 21 1 200-mAh cells driving 13 x 8 prop Speed con trol Astro 200 Flying weight 88 lb wing area 900 sq Finish solid red Per magloss Coverite Norm Hanson Hilton Head Falls SC has large fying field mere 30 ft pat io built Astro Viking floats use Astro speed control meters juice seven 800-mAh cells geared cobalt 05 Its just form Electric Elation 7/84 3/85 5/85 6/85 8/85 9/85 7/85 4/88 4/84 11/84 7/86 9/83 8/86 12/86 3/84 4/84 5/84 6/84 2/85 3/86 9/86 10/86 Safety such8/86 5/87 10/87 3/88 8/88 Flight intensity4/88 Clubs7/84 4/86 5/86 10/87 5/88 7/88 Trivta2/84 8/88 5 Electric design flight examples Kraft Shoestring Hundreds flights four planes Performance Motor/prop/plane com binations Wanderer 99 Solar-powered Glider Giant Electric Scale American Eaglet semiscale Eureka large sport KRC Electric Fly van ery Wasp Kits various Playboy balance point Spectrapower experi ment Exciter 40 ARFs Gee Bee Leisure Lanzo Bomber Helicopters Caliph Silentius Amptique Great Planes ElectriCub Sportique 6 Electric publications Books Magazines references 7 Fuses Discussion/sizes mounts/connections 11/83 3/84 5/84 11/84 5/84 6/84 8/84 9/84 10/84 10/84 10/84 10/85 11/84 11/84 11/84 1/85 3/85 1/85 10/85 9/86 7/88 9/86 12/86 2/87 1/88 7/87 8/87 10/87 2/88 12/87 4/88 9/87 12/87 1/88 6/88 5/88 6/88 8/84 6/85 8/87 12/87 10/84 11/84 6/85 8/85 9/86 5/87 8/87 9/87 8/88 2/84 8/87 9/87 3/88 10/83 11/83 Continued page 144 ASTRO FLIGHT SYSTEMS Challenger Cebat 4 cell 020 Direct $ 7645Geared$ 9771 Challenger CobaS 5 cell 035 Direct $ 6920Geared$11046 Challenger Cobatt7cell 00 Direct $10621Geared$12745 Challenger Cobat 12 cell 10 Direct $14020Geared$16140 Challenger Cobalt 14 cell 25 Direct $16570Geared$18696 CsallengerCebalt 16 cell 40 Direct $19545Geared$21671 Challenger Cebalt 24 cell 60 Direct $28471 Autro DC/DC Super Charger up 1026 cells$8286 Astro AC/DC Charger current aduot$5000 Astro DC/DC Charger$3200 Autro Electric Throttle$5596 Astro On-OS Motor Control Electronic$3196 Andersen Power Pole Connecter 4 hoesiegs /4 pins $200 /pr Gold Pin Moleo ConneGor$210 lot Tamipa Connector$100 lot Hi-Fleo wire 39 ea red & black 16 Gaj240 Strand$200 Daveps 30 Amp Metert81995 Micro 5oct06 Hurnesst$450 3/16 Flat Braid Soldering Batteries$080/ft Heat Shrink Tabing Baheries 25 lor450AFl 900$ 12000CR Flat Packs$150/h 3 eSOAR Flat Packs$160 / ft 4 tot OOOAR & 12000CR Stacked Packs$180 / SANYO CUT-OFF BATTERY PACKSt CELLS dCell 450mA$1950 5Cell 450mA$2300 d5OAR $35Oea 6 Cell 800 mA $2920 7 Cell 800 mA $3315 800AR $395ea 0 Cell 900 mA $2980 7 Cell 900 teA $3380 9000CR $dOSna 6 Cell l200reA 82920 7 Cell 1200059 $3315 12005CR$395eo packs edred hot packs Please specilp desired connectort ELECTRIC POWER KITS MMC USIa MK IV 68 Span Sailplane br 05 Gear$3790 MMC Electric Playboy 67 Span Old Timer tot 05 Gear$2600 Astro Challenger 73 Span Sailplane let 05 Gear$3250 EMD Electra Glide II 73 Span Sailplane tot 08$3100 EMD Themlic Traseler Sailplane 76 Span 05$3100 EMDSkp Knight 44 Span Troinerlor 00$2400 EMD Lightning 39 Span Aerehatic Spec Model 10105$2400 MMC Fast Eddie Aerobatic Sport Model tot 05$2400 AsIro 0005 37 i 05$2400 SHIPPING & HANDLING76 Page CATALOGtJE U0 $800 add$200$200 pp/tsr Closs free 0801 $2000 add$250when requested order $2001 $4000 add$320 $4001 $7000 add$375 Over $7000 odd$400HOBBY HORN CA Addressees add 6% tOe Send 15173 Moran St A] MO VISA / MC 8 & Sep Dale Box 2212 Clreck allow ep 30 days tsrWestmnster Ca 92584 check clearance COD heart charges plus $100 803-831 1 handling Cash OnlyHrs Mon-Fri 9AM 5PM September 1988 55 El Jett Kelety San Francisco CA thought youd like see what famous Clipper old looks like before covering Models 10-ft span will hauled Astro cobalt 40 Jomar speed control Wing twopiece tail removable Friendly youth shown just happened passing Jeff shooting photos nearby park Motor mount Octopussy connector array Simple charge systems Charge-Splitter Guidelines Battery cooler 4 Electric Advantages disadvan tages Easy economical entry-level Electric Elation DAVE BROWN PRODUCTS 4560 Layhigh Rd Hamilton Ohio 45013 13 738-1576 Motor exploded view 6 x 4 prop power RC Giant Scale/de Vries Continued page 141 cates hell Sopwith Triplane quarter-scale next Ive got see good friend called recently test fly newly developed Giant Scale model Hes ace pilot kind guy people call make first flights uncommon procedure amongst Scale designers/builders After maldng meticulous safety inspection new model bit apprehensive about alleron con trol installation designer chosen ose plastic pushrods although aileron its own servo werent supported through full length ground check en gine running showed proper control movement initial test flight attempted After few tries model airborne Hap pily bird easily trimmable friend test pilot made some passes over runway mandatory photo session photographers both well-qualified Giant builders fliers own right After first pass re duced airspeed thought heard some thing second pass engine running full-bore confirmed suspicions aile rons fluttering alarmingly telltale blur both wing tips noise flutter loud enough heard over roar 108 course friend test pilot honked back throttle reduce airspeed made slow sweeping pattem equally gentle straightin approach off-runway landing caused bird tumble damage relatively small assembled experts allowed flut ter resulted unsupported aileron pushrods recommended repalred wing modified provide pushrod tie-down three inches along length drastic corrective action considered adding internal dynamic balances within wing forward aileron spar Rather make both modifications former suggestion increased pushrod support adopted inner plastic rod twopiece pushrods changed less temperature sensitive flexible cable Another day another test flight later bird performed perfectly evidence flutter gone model beauty control alr couple lessons can gained ex perience First test flight new model de sign just thata test pilot must pre pared unexpected qualified meet Second safe flight RC model alrplane con trol surfaces must function air Surface flut ter can render model uncontrollable can cause model disintegrate air Its aggravated high airspeeds strikes slow bird down land immediately proficient test pilots its darn good idea qualified observer two hand initial test flights Unencumbered flying bird observations can abso lutely invaluableas case friends first flight does month Back atcha next month RC Electrics/Kopski Continued page 55 Motor installation Battery installation Templates cooling hole Wiring diagram airhome Prop Stop Authors 1982 flight profile Spectra-Soar flight togram Persuader flight histo gram J-3 flight histogram Playboy flight histogram Wing fuselage con struction Motor power vs model weight Spectra exploded view Charge systems schematics Charge-splitter acces sory Volt- current-meter schematics High-current shunt pic torial Twin wiring diagram DC-DC Super Charger modification 9 Meets comments/coverage Boeing Hawks SAM 76 KRC Electric Fly Intemational Canada South Shore MA Sparks Houston Daniel Boone Silent Fliers Astro Champs 1/84 1/84 1/84 2/84 2/84 3/84 3/84 3/84 3/84 3/84 4/84 6/84 11/84 5/85 6/85 7/85 12/85 4/86 6/87 9/87 10/87 11/84 6/85 7/86 7/87 1/85 7/85 8/85 11/85 12/85 7/86 6/87 11/84 1/85 6/85 1/86 7/86 1/87 6/87 1/88 4/88 5/88 6/85 6/85 12/85 7/86 5/87 6/85 4/86 5/87 8/85 2/86 7/86 10/86 8/85 MAC Huntsville 86 F3E meet Suggestions Largest County Soaring Eagles EMF/Chicago CASA Urion Lake Eastem Free Flight Conference Harbor Soaring Society Midwest Electric Fly WES2 Lehigh Valley First An nual Winston-Salem 10 Miscellaneous Reader mail Series review over sights Things Id like sec Flight logbook Stopwatch transmitter mount AlA Electric series er rata Twins Cold-weather flying Robbe Electric supplies EAA Newsletters Flight records High-current meter Dwight Holley Personal statements Electric Flier Patch Graupner Electric prod ucts ii Motors work Mounts mount assembly Venting Brashes commutators Break-in Bearings Prop adaptors Features Size Testing Power input/output Efficiency Flux rings Comparison Speed reducers belt gear Hot-wind Large Controls/speed controls 9/85 3/86 5/86 5/86 7/86 12/86 7/87 7/86 9/87 10/86 6/87 6/87 7/87 7/87 6/88 7/88 7/88 8/88 6/84 6/85 5/87 6/84 6/84 8/84 8/84 8/84 2/85 6/87 7/87 2/85 2/87 3/87 2/85 12/85 4/87 4/88 3/86 12/86 6/87 5/86 5/86 2/87 3/87 6/87 7/88 9/87 12/87 8/83 5/87 8/83 7/84 11/84 2/87 5/87 7/87 8/87 10/87 8/88 8/83 4/85 8/83 4/85 8/83 8/83 8/83 4/85 8/83 4/85 8/83 4/87 6/87 7/87 4/88 8/83 4/85 4/87 6/87 7/88 8/88 8/83 8/83 8/83 8/83 4/85 11/83 5/84 3/87 3/88 6/88 5/87 8/87 8/88 2/85 4/85 3/86 4/88 5/88 7/88 2/84 6/85 2/86 2/87 7/88 144 Model Aviation OH Scai -Extra 230 Kits Now Available Three Sizes 30% Scale Kit plus 815 shipping 1/3 Scale Kit plus 815 shipping 1/4 Scale Kit ~ plus 810 shipping Cash VISA Certified Check R/C EXTRAS 712-943-4102 RR1 Box 28B Sergeant Bluff IA 51054 12 Photos September 1983 Euphoria 11 aerobatic Motor bat tery etc assortment Whisper V Glider 3-3 Sport Scale Spectra-Soar/Sport/Stunt Buzzard Bombshell OT replica Strato Streak OT replica Mattel Super Star Persuader 05 acrobatic October 1983 Astro 10 Leisure 05 motors Disassem bled motors Cobalt 05 installation Props prop adap tors Motor mounts detailed Batteries assorted Charg ers Field boxes Connectors Blowers coolers January 1984 05 installation 15 belt-drive installa tion Battery cooling air vents Playboy radio installa tion Playboy motor mount Persuader aerobatic radio installation Battery installations February 1984 Switches Fuses Connectors Resis tors speed control Connectors crimp Switch installa tions Radio installations March 1984 i- flight Playboy cabin Spectra Per suader aerobatic April 1984 Motor battery radioweight Tape hinges May 1984 KRC Electric Fly scenes June 1984 Astro Porterfield Gentle Lady Olympic II Olympic 650 July 1984 Sleek motor mount assembly August 1984 Wanderer 99 Transmitter stopwatch mount September 1984 Five varied Electrics Solar-powered Electric October 1984 Ginnt Electricframework American Eaglet semiscale Eurekalarge sport Electric Wasp aerobatic January 1985 Spectra motor/battery combos Battery pack assembly Cobalt 15 mounting Spectra February 1985 Comet kitsport Electric Leisure ar matures Lightweight rudder/elevator mixer March 1985 Auto battery connections Multimeters assorted Connector arrayOctopussy April 1985 Motorslarge May/June 1985 Chargeradvanced construction July 1985 Charge-splitter construction Charge con nectors airborne August 1985 Astro Champs September 1985 PusherGlider Blanchards B-24 SPARKS Houston meet October 1985 Charger maintenance Exciter 40 aero batic December 1985 SAM 76 85 meet Hobby shop Klensm L25d China Clipper Playboy/lithium battery January 1986 1985 KRC Electric Flymany photos February 1986 Adams speed control Orga nizer' Motor noise-suppression capacitors Daniel Boone meet March 1986 Multimeter recommended Grandpa bipe Ellis Grumer Spectrastylized April 1986 Homemade high-current meter shunt May 1986 Exciter 40-size installation Advanced charger Piper Tripacer June 1986 Citabria SparkFire25 aerobatic Sparky July 1986 Hair-dryer blower parts Meter/leads/parts cases August 1986 Economy Electric system Wiring har nesses Electric installation September 1986 Pronto Mountjoy Auto battery con nections Playboy Ewing October 1986 mans huge fleet Evanson Cut awacka Blanchard Large spring clips Sermos connec tors DC-DC Super Charger December 1986 Armatures straight skewed slots Bluebird 15 Grumer Leisure Lanzo Bomber Py Ion Playboy SAM meet January 1987 86 KRC Electric Fly photos February 1987 Astro Viking installation Lanzo Bomber installation Astro cobalt new take-apart design DSC high-current meter March 1987 Dwight Holley Prop slots April 1987 Unbelievable motor Ni-Cd cells sizes OSs etc sizes motors May 1987 Lanzo Bomber installation Astro Viking installation So Long OT Taylor Pod-mounted motors June 1987 Astro 10 original Gollaher Esquire Myers Powerhouse Mountjoy July/August 1987 Caliph installation detail September 1987 Arming switch Fuses & holders Electric Flier patch DC-DC Super Charger modifica tions October 1987 Caliph construction detail December 1987 Leisure Amptique installation de tail Various connectors January 1988 1987 KRC Electric Fly photos February 1988 Zlin 526 Shaw Amptique Wilson Amptique tail wheel Ampeater bipe Kopski Jomar speed controls March 1988 Astro 02/035 gear drive Old/new As tro cobalt brushes K&W folding props Fuse connec tions make April 1988 Ford Flivver True Mystery Electric P 38 Wetzel Waco Taperwing Shaw May 1988 Mystery Electric Amptique 15 installa tion 3-3 Spagnuolo Fenstermacher Leisure Lanzo Bomber Chaplick Amptique Kraynak June 1988 Mystery Electric Ewing Eindecker Da vey Astro cobalt 60 installations Swizzle Stik Griggs July 1988 Goldberg Electra Schmitt Robbe Geier Rumsey Robin Wood Glider Walpole Jersey Goose sport Grumer August 1988 Ferrite 05 Astro gear drive mount Challenger Kopskl Tronics 13 Propellers Sizes Effects pitch power Prop stops Folders Prop slots 14 Radio Choosing Electric Installation Motor noise Range Glitching Power 15 Rules competition Discussion proposals etc 16 Rules thumb Power needed fly Power ROG Power system weight Wing weight Weight importance Kits An application example 17 Switches Toggle Miemawitches Three-position Size Life Master arming Electronic 18 Tables Effects propeller size Plane power system weights Spectra Soar statistics Persuader statistics 3-3 statistics Playboy statistics Wing structures Fuselage structures Recommended motor operation Motor power/model weights Battery performance old/new Spectra Soar flight time Large motor perform ance Motor mounts JTec Sonic11/83 1/83 5/85 8/88 2/84 11/84 9/86 3/87 3/88 6/88 8/88 3/87 1/84 1/84 11/84 6/85 2/86 8/87 6/85 6/85 9/87 9/87 11/84 1/85 2/85 3/85 8/85 6/86 9/86 10/86 12/86 6/87 4/88 8/88 4/84 4/84 4/84 4/84 4/84 4/84 10/84 2/84 2/84 1/85 8/87 2/84 2/84 2/84 6/88 2/84 9/87 6/88 9/87 11/83 4/85 1/84 3/84 3/84 3/84 3/84 4/84 4/84 5/84 6/84 9/84 1/85 4/85 September 1988 145 L OPS 18 engine quarter scale Contact us free engine test results SThe CmAe~eR% 9m6o4 9i0 Power ranges7/85 Capacitors2/86 Feel12/86 New motors/im-12/86 2/87 3/88 proved motors Unbelievable4/87 7/87 Car motors6/87 Keller motor nomencla-7/87 10/87 ture Power supply6/87 Leisure2/88 Recommended charge current Article index Ni-Cd cell weights DC-DC Super Charger mod parts list Connector wire resis tance Leisure 05 perform ance Caliph power systems Astm 15 props/power Geared Astro 05 15 props/power Popular equipment 85 Electric Fly 19 Weight Importance Plane/power system Radio servo receiver battery Covering Framework examples 20 Wfring Size/kind/loss/weight Soldering Connectors Auto model chargers Organizer Twins 6/85 9/85 4/87 9/87 12/87 2/88 2/88 7/88 8/88 3/86 1/84 4/84 8/87 1/84 1/84 4/84 10/84 11/84 2/84 10/87 12/87 2/84 2/84 3/85 7/85 2/86 6/87 So ends another columnalbeit somewhat unus ual hope find useful doing couldnt help think useful master index Electric articles magazines last 15 years would Would ever killer project Next month back normal column format Please forward comment question SASE please photo ad dress given very top column Thanks five years fun everyone RC Helicopters/Jolly Continued page 56 side frames tail tube gyro mount engine mount bearing mounts made fa miliar friend aluminum However landing gear tail rotor housing washout assembly blade grips blade mounts tail rotor mounts bellcranks yoke main reduction gear tail rotor blades molded fiber-filled plastic rest X-Cell made accepted materials Included smoked Lexan canopy all-metal inline swashplate metal clutch steel starting shaft both main tail rotor shafts centerless ground hardened steel As layout X-Cell conventional two side frames trapping engine mounts bearing mounts tail tube engine mounted vertically glow plug pointing aft starting shaft positioned forward main rotor shaft main reduction gear nylon has tail-rotor-drive takeoff track molded side covered least mistake 60-size X-Cell has ball bearings something rotates would expect control system virtually slop-free featur ing four-point attachment swashplate Col lective pitch activated via mixer roll servo output arm Using method 200 col lective pitch travel possible fore-and-aft cyclic pitch elevator servo mounted unique position just aft main rotor shaft its pushrod both straight short As matter fact pushrods straight runs course adds precise response al ready tight controls As far physical statistics go X-Cell 60 has overall length 53 height 16 main rotor diameter 57 engine-torotor reduction gear ratio 91 feature unique X-Cell use delta hinge tail rotor Theoretically reduces effect side gusts machine cant tell difference tell truth feature interesting Making use stock flybar weights adjust able head dampening wide collective range produces very adaptable machine can made respond needs wide range fliers novices all-out aerobatic perform ers looking X-Cell should get accessories designed adaptable other machines First would Rotor-Sport blades have proven give great performance well made ex hibit good characteristics during aerobatics cluding autorotations have commend Miniature Aircraft its use sticky-back vinyl blade covering excellent choice nd will lift off use Also available Magna pipes ex haust system allows smooth power keeps mass Helicopters longitudinal centerof-gravity As mentioned earlier instruction manual excellent Following letter will yield very easily built smooth-flying aerobatic per former After flying X-Cell have say few machines will match its flight performance probably best-rolling Helicop ter available today Just before mailed off months colusim magazines editorial office Ted Schoonard kindly sent photos some accessories X-Cell noteworthy Quick Silver version basically three-piece lightweight fiberglass molding turns stock X-Cell full-bodied FM-style machine addition 10 oz all-up weight mechanics have modified ac cept fuselage Merely remove canopy tail rotor housing install two fuselage halves over mechanics Theres real good thinking total adjustments can made removing mechanics shell will report other updates later column am now getting close running out space summary would like state X-Cell combination quality parts sound cur rent Helicopter design thinking brought together great kit yielding Helicopter great performance Because Schoonards strong interest improving products expect will see still excellent products coming years now personal note Wait Schoonard has very ill during first part 1988 behalf fraternity RC Helicopter enthusi asts congratulate Walt X-Cell wish speedy recovery can get back Helicopters love much BCNU RC Pylon Racing/Hager Continued page 57 brush cleaning place paper towel Spray fine mist WD4O other com parable lubricant parts Inspect interior crankcase flash sharp edges around ports machined areas spect carefully presence foreign materi al Using #11 X-Acto blade gently clean rough and/or sharp edges Inspect area sleeve goes case high spots rough edges detected wrap piece #400or #600-grit wet/dry sandpaper around fin ger dowel spray some WD4O sandpa per gently rotate sandpaper bore area Inspect rear crankcase cover appears crankshaft hitting cover some places polish rear covers face portion faces crankshaft things assem 146 Model Aviation I I II U UHuA Send $1 tO toupon lsrwithysurssme andsddresallsADDRESS MlcroMark 340-569Snyder Ave flvkeIeYHIhta NJ O722CITYSTATEZIP3
Edition: Model Aviation - 1988/09
Page Numbers: 54, 55, 144, 145, 146
THIS very special issue because represents fifth year association Model Aviation Its hard believe first Electric writing appeared Septem ber 1983 issueand seems just like last week September 83 issue first install ment MAs Electric series About Elec trics Originally intended four- five-part effort project grew total 10 install ments wrapping up June 1986 issue Ap parently magazine sales did decline new Electric coverage offered good folks MA asked continue regular monthly column Thus began regular RC Electrics column July 1986 Along way also appeared two con struction articles Spectra November 1984 Mods DC-DC Super Charger Sep tember 1987 Another feature article KRC Electric Fly appeared January 1985 Throughout Ive always tried share Electric fun success Fun what hobby for Electric fun has its own special appeal since sharing fun special fun Im particularly indebted Model Aviation giving opportunity Im equally grateful modeler/read ers have frequently written thanks information other words encourage ment Without no purpose writ ing What follows probably difficult piece Ive written Its attempt five-year index above writing readers have asking such index celebration anniversary index bit unusual Basically its chronological listing sortsbut within topical areas Only main topics given alphabetically subtopics aremore lessgiven timespread fashion means may have look little longer list follows find what want and/or look under topic also means wouldnt classic index fashion Anyway Ive tried very hard include evgry thingand get everything right probably didnt Please forgive errors may cause difficulty Constructing index quite naturally forced reread five-years worth stuff WHEW Thats lot stuffi what came Out effort realization just about still timely mean example much what appeared 1983 part still contemporary fact things outdated materials peculiar products time have survived good because Octo ber 1983 issue wrote Soon Electric products today will come dated will specific how-to examples based dont want series become dated want continue basic value understanding utilization whatever new better products come along Im biased course feel past issues MA still hold value eager Electric mod eler such may want hang Newcomers Electric may want dig back few years see what offered As said theecs lot stuff Now no further rambling Bobs five-year Electric index September 1983 September 1988 1 Basic electricity Part One- voltage current Part Two- Ohms Law power Practical example Part Three- Electric terms sizes Pan Four- meters basic Part Five using multimeter Part Six using multimeter Part Seven using multimeter Part Eight other multimeter parts Part Nine high-current shunt Part Ten special multimeter functions Part Eleven meter effect circuit 2 Batteries chargers charging Kinds12/83 6/84 Cooling12/83 7/86 2/87 10/87 Connections/connectors12/83 7/85 2/88 7/88 Capacitysize12/83 4/87 8/87 Power12/83 7/85 Configurations12/83 Heat12/83 7/86 3/85 4/85 5/85 7/85 8/85 10/85 12/85 2/86 3/86 4/86 5/86 7/86 Life9/84 12/84 Charging12/83 9/84 3/85 5/85 6/85 7/85 5/86 4/87 8/87 1/85 3/85 3/85 9/86 10/86 12/86 10/85 12/85 5/86 10/86 12/87 10/86 9/87 10/87 12/87 4/88 5/88 7/88 12/87 Assembly Charger connections Timer maintenance Advanced Sermos connectors DC-DC Super Charger Sanyo Extra 3 Construction Spectra three-in-one airplane desisnl 11/84 54 Model Aviation Radio Control Electrics Bob Kopsid 25 West End Dr Lansdale PA 19446 wondrous creations workbench Woody Blanchard Above splendid Russian Maxsim Gorky Thirties spans 76 motivated eight rs wingmounted ones VI HY7Os pylon-mounted ones pair Astro 02 cobalts single battery seven 1200-mAh cells runs Below B-17F Memphis Belle Craft weighs 6 lb 3 oz spans 74 powered four Astro 035 cobalts turning 7 x 4 props Twenty 900-mAh cells job Model has Goldberg retracts flaps ailerons elevator rud der throttle control via Robart H0500 ROGs after 50-ft takeoff roll full throttle climbs steeply half throttle See em 88 KRC Electric Fly Cessna AW -scale scratch-built WE Technical Services plans John Mountjoy Winston-Salem NC Motor R-E-A sport cobalt 60 run 21 1 200-mAh cells driving 13 x 8 prop Speed con trol Astro 200 Flying weight 88 lb wing area 900 sq Finish solid red Per magloss Coverite Norm Hanson Hilton Head Falls SC has large fying field mere 30 ft pat io built Astro Viking floats use Astro speed control meters juice seven 800-mAh cells geared cobalt 05 Its just form Electric Elation 7/84 3/85 5/85 6/85 8/85 9/85 7/85 4/88 4/84 11/84 7/86 9/83 8/86 12/86 3/84 4/84 5/84 6/84 2/85 3/86 9/86 10/86 Safety such8/86 5/87 10/87 3/88 8/88 Flight intensity4/88 Clubs7/84 4/86 5/86 10/87 5/88 7/88 Trivta2/84 8/88 5 Electric design flight examples Kraft Shoestring Hundreds flights four planes Performance Motor/prop/plane com binations Wanderer 99 Solar-powered Glider Giant Electric Scale American Eaglet semiscale Eureka large sport KRC Electric Fly van ery Wasp Kits various Playboy balance point Spectrapower experi ment Exciter 40 ARFs Gee Bee Leisure Lanzo Bomber Helicopters Caliph Silentius Amptique Great Planes ElectriCub Sportique 6 Electric publications Books Magazines references 7 Fuses Discussion/sizes mounts/connections 11/83 3/84 5/84 11/84 5/84 6/84 8/84 9/84 10/84 10/84 10/84 10/85 11/84 11/84 11/84 1/85 3/85 1/85 10/85 9/86 7/88 9/86 12/86 2/87 1/88 7/87 8/87 10/87 2/88 12/87 4/88 9/87 12/87 1/88 6/88 5/88 6/88 8/84 6/85 8/87 12/87 10/84 11/84 6/85 8/85 9/86 5/87 8/87 9/87 8/88 2/84 8/87 9/87 3/88 10/83 11/83 Continued page 144 ASTRO FLIGHT SYSTEMS Challenger Cebat 4 cell 020 Direct $ 7645Geared$ 9771 Challenger CobaS 5 cell 035 Direct $ 6920Geared$11046 Challenger Cobatt7cell 00 Direct $10621Geared$12745 Challenger Cobat 12 cell 10 Direct $14020Geared$16140 Challenger Cobalt 14 cell 25 Direct $16570Geared$18696 CsallengerCebalt 16 cell 40 Direct $19545Geared$21671 Challenger Cebalt 24 cell 60 Direct $28471 Autro DC/DC Super Charger up 1026 cells$8286 Astro AC/DC Charger current aduot$5000 Astro DC/DC Charger$3200 Autro Electric Throttle$5596 Astro On-OS Motor Control Electronic$3196 Andersen Power Pole Connecter 4 hoesiegs /4 pins $200 /pr Gold Pin Moleo ConneGor$210 lot Tamipa Connector$100 lot Hi-Fleo wire 39 ea red & black 16 Gaj240 Strand$200 Daveps 30 Amp Metert81995 Micro 5oct06 Hurnesst$450 3/16 Flat Braid Soldering Batteries$080/ft Heat Shrink Tabing Baheries 25 lor450AFl 900$ 12000CR Flat Packs$150/h 3 eSOAR Flat Packs$160 / ft 4 tot OOOAR & 12000CR Stacked Packs$180 / SANYO CUT-OFF BATTERY PACKSt CELLS dCell 450mA$1950 5Cell 450mA$2300 d5OAR $35Oea 6 Cell 800 mA $2920 7 Cell 800 mA $3315 800AR $395ea 0 Cell 900 mA $2980 7 Cell 900 teA $3380 9000CR $dOSna 6 Cell l200reA 82920 7 Cell 1200059 $3315 12005CR$395eo packs edred hot packs Please specilp desired connectort ELECTRIC POWER KITS MMC USIa MK IV 68 Span Sailplane br 05 Gear$3790 MMC Electric Playboy 67 Span Old Timer tot 05 Gear$2600 Astro Challenger 73 Span Sailplane let 05 Gear$3250 EMD Electra Glide II 73 Span Sailplane tot 08$3100 EMD Themlic Traseler Sailplane 76 Span 05$3100 EMDSkp Knight 44 Span Troinerlor 00$2400 EMD Lightning 39 Span Aerehatic Spec Model 10105$2400 MMC Fast Eddie Aerobatic Sport Model tot 05$2400 AsIro 0005 37 i 05$2400 SHIPPING & HANDLING76 Page CATALOGtJE U0 $800 add$200$200 pp/tsr Closs free 0801 $2000 add$250when requested order $2001 $4000 add$320 $4001 $7000 add$375 Over $7000 odd$400HOBBY HORN CA Addressees add 6% tOe Send 15173 Moran St A] MO VISA / MC 8 & Sep Dale Box 2212 Clreck allow ep 30 days tsrWestmnster Ca 92584 check clearance COD heart charges plus $100 803-831 1 handling Cash OnlyHrs Mon-Fri 9AM 5PM September 1988 55 El Jett Kelety San Francisco CA thought youd like see what famous Clipper old looks like before covering Models 10-ft span will hauled Astro cobalt 40 Jomar speed control Wing twopiece tail removable Friendly youth shown just happened passing Jeff shooting photos nearby park Motor mount Octopussy connector array Simple charge systems Charge-Splitter Guidelines Battery cooler 4 Electric Advantages disadvan tages Easy economical entry-level Electric Elation DAVE BROWN PRODUCTS 4560 Layhigh Rd Hamilton Ohio 45013 13 738-1576 Motor exploded view 6 x 4 prop power RC Giant Scale/de Vries Continued page 141 cates hell Sopwith Triplane quarter-scale next Ive got see good friend called recently test fly newly developed Giant Scale model Hes ace pilot kind guy people call make first flights uncommon procedure amongst Scale designers/builders After maldng meticulous safety inspection new model bit apprehensive about alleron con trol installation designer chosen ose plastic pushrods although aileron its own servo werent supported through full length ground check en gine running showed proper control movement initial test flight attempted After few tries model airborne Hap pily bird easily trimmable friend test pilot made some passes over runway mandatory photo session photographers both well-qualified Giant builders fliers own right After first pass re duced airspeed thought heard some thing second pass engine running full-bore confirmed suspicions aile rons fluttering alarmingly telltale blur both wing tips noise flutter loud enough heard over roar 108 course friend test pilot honked back throttle reduce airspeed made slow sweeping pattem equally gentle straightin approach off-runway landing caused bird tumble damage relatively small assembled experts allowed flut ter resulted unsupported aileron pushrods recommended repalred wing modified provide pushrod tie-down three inches along length drastic corrective action considered adding internal dynamic balances within wing forward aileron spar Rather make both modifications former suggestion increased pushrod support adopted inner plastic rod twopiece pushrods changed less temperature sensitive flexible cable Another day another test flight later bird performed perfectly evidence flutter gone model beauty control alr couple lessons can gained ex perience First test flight new model de sign just thata test pilot must pre pared unexpected qualified meet Second safe flight RC model alrplane con trol surfaces must function air Surface flut ter can render model uncontrollable can cause model disintegrate air Its aggravated high airspeeds strikes slow bird down land immediately proficient test pilots its darn good idea qualified observer two hand initial test flights Unencumbered flying bird observations can abso lutely invaluableas case friends first flight does month Back atcha next month RC Electrics/Kopski Continued page 55 Motor installation Battery installation Templates cooling hole Wiring diagram airhome Prop Stop Authors 1982 flight profile Spectra-Soar flight togram Persuader flight histo gram J-3 flight histogram Playboy flight histogram Wing fuselage con struction Motor power vs model weight Spectra exploded view Charge systems schematics Charge-splitter acces sory Volt- current-meter schematics High-current shunt pic torial Twin wiring diagram DC-DC Super Charger modification 9 Meets comments/coverage Boeing Hawks SAM 76 KRC Electric Fly Intemational Canada South Shore MA Sparks Houston Daniel Boone Silent Fliers Astro Champs 1/84 1/84 1/84 2/84 2/84 3/84 3/84 3/84 3/84 3/84 4/84 6/84 11/84 5/85 6/85 7/85 12/85 4/86 6/87 9/87 10/87 11/84 6/85 7/86 7/87 1/85 7/85 8/85 11/85 12/85 7/86 6/87 11/84 1/85 6/85 1/86 7/86 1/87 6/87 1/88 4/88 5/88 6/85 6/85 12/85 7/86 5/87 6/85 4/86 5/87 8/85 2/86 7/86 10/86 8/85 MAC Huntsville 86 F3E meet Suggestions Largest County Soaring Eagles EMF/Chicago CASA Urion Lake Eastem Free Flight Conference Harbor Soaring Society Midwest Electric Fly WES2 Lehigh Valley First An nual Winston-Salem 10 Miscellaneous Reader mail Series review over sights Things Id like sec Flight logbook Stopwatch transmitter mount AlA Electric series er rata Twins Cold-weather flying Robbe Electric supplies EAA Newsletters Flight records High-current meter Dwight Holley Personal statements Electric Flier Patch Graupner Electric prod ucts ii Motors work Mounts mount assembly Venting Brashes commutators Break-in Bearings Prop adaptors Features Size Testing Power input/output Efficiency Flux rings Comparison Speed reducers belt gear Hot-wind Large Controls/speed controls 9/85 3/86 5/86 5/86 7/86 12/86 7/87 7/86 9/87 10/86 6/87 6/87 7/87 7/87 6/88 7/88 7/88 8/88 6/84 6/85 5/87 6/84 6/84 8/84 8/84 8/84 2/85 6/87 7/87 2/85 2/87 3/87 2/85 12/85 4/87 4/88 3/86 12/86 6/87 5/86 5/86 2/87 3/87 6/87 7/88 9/87 12/87 8/83 5/87 8/83 7/84 11/84 2/87 5/87 7/87 8/87 10/87 8/88 8/83 4/85 8/83 4/85 8/83 8/83 8/83 4/85 8/83 4/85 8/83 4/87 6/87 7/87 4/88 8/83 4/85 4/87 6/87 7/88 8/88 8/83 8/83 8/83 8/83 4/85 11/83 5/84 3/87 3/88 6/88 5/87 8/87 8/88 2/85 4/85 3/86 4/88 5/88 7/88 2/84 6/85 2/86 2/87 7/88 144 Model Aviation OH Scai -Extra 230 Kits Now Available Three Sizes 30% Scale Kit plus 815 shipping 1/3 Scale Kit plus 815 shipping 1/4 Scale Kit ~ plus 810 shipping Cash VISA Certified Check R/C EXTRAS 712-943-4102 RR1 Box 28B Sergeant Bluff IA 51054 12 Photos September 1983 Euphoria 11 aerobatic Motor bat tery etc assortment Whisper V Glider 3-3 Sport Scale Spectra-Soar/Sport/Stunt Buzzard Bombshell OT replica Strato Streak OT replica Mattel Super Star Persuader 05 acrobatic October 1983 Astro 10 Leisure 05 motors Disassem bled motors Cobalt 05 installation Props prop adap tors Motor mounts detailed Batteries assorted Charg ers Field boxes Connectors Blowers coolers January 1984 05 installation 15 belt-drive installa tion Battery cooling air vents Playboy radio installa tion Playboy motor mount Persuader aerobatic radio installation Battery installations February 1984 Switches Fuses Connectors Resis tors speed control Connectors crimp Switch installa tions Radio installations March 1984 i- flight Playboy cabin Spectra Per suader aerobatic April 1984 Motor battery radioweight Tape hinges May 1984 KRC Electric Fly scenes June 1984 Astro Porterfield Gentle Lady Olympic II Olympic 650 July 1984 Sleek motor mount assembly August 1984 Wanderer 99 Transmitter stopwatch mount September 1984 Five varied Electrics Solar-powered Electric October 1984 Ginnt Electricframework American Eaglet semiscale Eurekalarge sport Electric Wasp aerobatic January 1985 Spectra motor/battery combos Battery pack assembly Cobalt 15 mounting Spectra February 1985 Comet kitsport Electric Leisure ar matures Lightweight rudder/elevator mixer March 1985 Auto battery connections Multimeters assorted Connector arrayOctopussy April 1985 Motorslarge May/June 1985 Chargeradvanced construction July 1985 Charge-splitter construction Charge con nectors airborne August 1985 Astro Champs September 1985 PusherGlider Blanchards B-24 SPARKS Houston meet October 1985 Charger maintenance Exciter 40 aero batic December 1985 SAM 76 85 meet Hobby shop Klensm L25d China Clipper Playboy/lithium battery January 1986 1985 KRC Electric Flymany photos February 1986 Adams speed control Orga nizer' Motor noise-suppression capacitors Daniel Boone meet March 1986 Multimeter recommended Grandpa bipe Ellis Grumer Spectrastylized April 1986 Homemade high-current meter shunt May 1986 Exciter 40-size installation Advanced charger Piper Tripacer June 1986 Citabria SparkFire25 aerobatic Sparky July 1986 Hair-dryer blower parts Meter/leads/parts cases August 1986 Economy Electric system Wiring har nesses Electric installation September 1986 Pronto Mountjoy Auto battery con nections Playboy Ewing October 1986 mans huge fleet Evanson Cut awacka Blanchard Large spring clips Sermos connec tors DC-DC Super Charger December 1986 Armatures straight skewed slots Bluebird 15 Grumer Leisure Lanzo Bomber Py Ion Playboy SAM meet January 1987 86 KRC Electric Fly photos February 1987 Astro Viking installation Lanzo Bomber installation Astro cobalt new take-apart design DSC high-current meter March 1987 Dwight Holley Prop slots April 1987 Unbelievable motor Ni-Cd cells sizes OSs etc sizes motors May 1987 Lanzo Bomber installation Astro Viking installation So Long OT Taylor Pod-mounted motors June 1987 Astro 10 original Gollaher Esquire Myers Powerhouse Mountjoy July/August 1987 Caliph installation detail September 1987 Arming switch Fuses & holders Electric Flier patch DC-DC Super Charger modifica tions October 1987 Caliph construction detail December 1987 Leisure Amptique installation de tail Various connectors January 1988 1987 KRC Electric Fly photos February 1988 Zlin 526 Shaw Amptique Wilson Amptique tail wheel Ampeater bipe Kopski Jomar speed controls March 1988 Astro 02/035 gear drive Old/new As tro cobalt brushes K&W folding props Fuse connec tions make April 1988 Ford Flivver True Mystery Electric P 38 Wetzel Waco Taperwing Shaw May 1988 Mystery Electric Amptique 15 installa tion 3-3 Spagnuolo Fenstermacher Leisure Lanzo Bomber Chaplick Amptique Kraynak June 1988 Mystery Electric Ewing Eindecker Da vey Astro cobalt 60 installations Swizzle Stik Griggs July 1988 Goldberg Electra Schmitt Robbe Geier Rumsey Robin Wood Glider Walpole Jersey Goose sport Grumer August 1988 Ferrite 05 Astro gear drive mount Challenger Kopskl Tronics 13 Propellers Sizes Effects pitch power Prop stops Folders Prop slots 14 Radio Choosing Electric Installation Motor noise Range Glitching Power 15 Rules competition Discussion proposals etc 16 Rules thumb Power needed fly Power ROG Power system weight Wing weight Weight importance Kits An application example 17 Switches Toggle Miemawitches Three-position Size Life Master arming Electronic 18 Tables Effects propeller size Plane power system weights Spectra Soar statistics Persuader statistics 3-3 statistics Playboy statistics Wing structures Fuselage structures Recommended motor operation Motor power/model weights Battery performance old/new Spectra Soar flight time Large motor perform ance Motor mounts JTec Sonic11/83 1/83 5/85 8/88 2/84 11/84 9/86 3/87 3/88 6/88 8/88 3/87 1/84 1/84 11/84 6/85 2/86 8/87 6/85 6/85 9/87 9/87 11/84 1/85 2/85 3/85 8/85 6/86 9/86 10/86 12/86 6/87 4/88 8/88 4/84 4/84 4/84 4/84 4/84 4/84 10/84 2/84 2/84 1/85 8/87 2/84 2/84 2/84 6/88 2/84 9/87 6/88 9/87 11/83 4/85 1/84 3/84 3/84 3/84 3/84 4/84 4/84 5/84 6/84 9/84 1/85 4/85 September 1988 145 L OPS 18 engine quarter scale Contact us free engine test results SThe CmAe~eR% 9m6o4 9i0 Power ranges7/85 Capacitors2/86 Feel12/86 New motors/im-12/86 2/87 3/88 proved motors Unbelievable4/87 7/87 Car motors6/87 Keller motor nomencla-7/87 10/87 ture Power supply6/87 Leisure2/88 Recommended charge current Article index Ni-Cd cell weights DC-DC Super Charger mod parts list Connector wire resis tance Leisure 05 perform ance Caliph power systems Astm 15 props/power Geared Astro 05 15 props/power Popular equipment 85 Electric Fly 19 Weight Importance Plane/power system Radio servo receiver battery Covering Framework examples 20 Wfring Size/kind/loss/weight Soldering Connectors Auto model chargers Organizer Twins 6/85 9/85 4/87 9/87 12/87 2/88 2/88 7/88 8/88 3/86 1/84 4/84 8/87 1/84 1/84 4/84 10/84 11/84 2/84 10/87 12/87 2/84 2/84 3/85 7/85 2/86 6/87 So ends another columnalbeit somewhat unus ual hope find useful doing couldnt help think useful master index Electric articles magazines last 15 years would Would ever killer project Next month back normal column format Please forward comment question SASE please photo ad dress given very top column Thanks five years fun everyone RC Helicopters/Jolly Continued page 56 side frames tail tube gyro mount engine mount bearing mounts made fa miliar friend aluminum However landing gear tail rotor housing washout assembly blade grips blade mounts tail rotor mounts bellcranks yoke main reduction gear tail rotor blades molded fiber-filled plastic rest X-Cell made accepted materials Included smoked Lexan canopy all-metal inline swashplate metal clutch steel starting shaft both main tail rotor shafts centerless ground hardened steel As layout X-Cell conventional two side frames trapping engine mounts bearing mounts tail tube engine mounted vertically glow plug pointing aft starting shaft positioned forward main rotor shaft main reduction gear nylon has tail-rotor-drive takeoff track molded side covered least mistake 60-size X-Cell has ball bearings something rotates would expect control system virtually slop-free featur ing four-point attachment swashplate Col lective pitch activated via mixer roll servo output arm Using method 200 col lective pitch travel possible fore-and-aft cyclic pitch elevator servo mounted unique position just aft main rotor shaft its pushrod both straight short As matter fact pushrods straight runs course adds precise response al ready tight controls As far physical statistics go X-Cell 60 has overall length 53 height 16 main rotor diameter 57 engine-torotor reduction gear ratio 91 feature unique X-Cell use delta hinge tail rotor Theoretically reduces effect side gusts machine cant tell difference tell truth feature interesting Making use stock flybar weights adjust able head dampening wide collective range produces very adaptable machine can made respond needs wide range fliers novices all-out aerobatic perform ers looking X-Cell should get accessories designed adaptable other machines First would Rotor-Sport blades have proven give great performance well made ex hibit good characteristics during aerobatics cluding autorotations have commend Miniature Aircraft its use sticky-back vinyl blade covering excellent choice nd will lift off use Also available Magna pipes ex haust system allows smooth power keeps mass Helicopters longitudinal centerof-gravity As mentioned earlier instruction manual excellent Following letter will yield very easily built smooth-flying aerobatic per former After flying X-Cell have say few machines will match its flight performance probably best-rolling Helicop ter available today Just before mailed off months colusim magazines editorial office Ted Schoonard kindly sent photos some accessories X-Cell noteworthy Quick Silver version basically three-piece lightweight fiberglass molding turns stock X-Cell full-bodied FM-style machine addition 10 oz all-up weight mechanics have modified ac cept fuselage Merely remove canopy tail rotor housing install two fuselage halves over mechanics Theres real good thinking total adjustments can made removing mechanics shell will report other updates later column am now getting close running out space summary would like state X-Cell combination quality parts sound cur rent Helicopter design thinking brought together great kit yielding Helicopter great performance Because Schoonards strong interest improving products expect will see still excellent products coming years now personal note Wait Schoonard has very ill during first part 1988 behalf fraternity RC Helicopter enthusi asts congratulate Walt X-Cell wish speedy recovery can get back Helicopters love much BCNU RC Pylon Racing/Hager Continued page 57 brush cleaning place paper towel Spray fine mist WD4O other com parable lubricant parts Inspect interior crankcase flash sharp edges around ports machined areas spect carefully presence foreign materi al Using #11 X-Acto blade gently clean rough and/or sharp edges Inspect area sleeve goes case high spots rough edges detected wrap piece #400or #600-grit wet/dry sandpaper around fin ger dowel spray some WD4O sandpa per gently rotate sandpaper bore area Inspect rear crankcase cover appears crankshaft hitting cover some places polish rear covers face portion faces crankshaft things assem 146 Model Aviation I I II U UHuA Send $1 tO toupon lsrwithysurssme andsddresallsADDRESS MlcroMark 340-569Snyder Ave flvkeIeYHIhta NJ O722CITYSTATEZIP3
Edition: Model Aviation - 1988/09
Page Numbers: 54, 55, 144, 145, 146
THIS very special issue because represents fifth year association Model Aviation Its hard believe first Electric writing appeared Septem ber 1983 issueand seems just like last week September 83 issue first install ment MAs Electric series About Elec trics Originally intended four- five-part effort project grew total 10 install ments wrapping up June 1986 issue Ap parently magazine sales did decline new Electric coverage offered good folks MA asked continue regular monthly column Thus began regular RC Electrics column July 1986 Along way also appeared two con struction articles Spectra November 1984 Mods DC-DC Super Charger Sep tember 1987 Another feature article KRC Electric Fly appeared January 1985 Throughout Ive always tried share Electric fun success Fun what hobby for Electric fun has its own special appeal since sharing fun special fun Im particularly indebted Model Aviation giving opportunity Im equally grateful modeler/read ers have frequently written thanks information other words encourage ment Without no purpose writ ing What follows probably difficult piece Ive written Its attempt five-year index above writing readers have asking such index celebration anniversary index bit unusual Basically its chronological listing sortsbut within topical areas Only main topics given alphabetically subtopics aremore lessgiven timespread fashion means may have look little longer list follows find what want and/or look under topic also means wouldnt classic index fashion Anyway Ive tried very hard include evgry thingand get everything right probably didnt Please forgive errors may cause difficulty Constructing index quite naturally forced reread five-years worth stuff WHEW Thats lot stuffi what came Out effort realization just about still timely mean example much what appeared 1983 part still contemporary fact things outdated materials peculiar products time have survived good because Octo ber 1983 issue wrote Soon Electric products today will come dated will specific how-to examples based dont want series become dated want continue basic value understanding utilization whatever new better products come along Im biased course feel past issues MA still hold value eager Electric mod eler such may want hang Newcomers Electric may want dig back few years see what offered As said theecs lot stuff Now no further rambling Bobs five-year Electric index September 1983 September 1988 1 Basic electricity Part One- voltage current Part Two- Ohms Law power Practical example Part Three- Electric terms sizes Pan Four- meters basic Part Five using multimeter Part Six using multimeter Part Seven using multimeter Part Eight other multimeter parts Part Nine high-current shunt Part Ten special multimeter functions Part Eleven meter effect circuit 2 Batteries chargers charging Kinds12/83 6/84 Cooling12/83 7/86 2/87 10/87 Connections/connectors12/83 7/85 2/88 7/88 Capacitysize12/83 4/87 8/87 Power12/83 7/85 Configurations12/83 Heat12/83 7/86 3/85 4/85 5/85 7/85 8/85 10/85 12/85 2/86 3/86 4/86 5/86 7/86 Life9/84 12/84 Charging12/83 9/84 3/85 5/85 6/85 7/85 5/86 4/87 8/87 1/85 3/85 3/85 9/86 10/86 12/86 10/85 12/85 5/86 10/86 12/87 10/86 9/87 10/87 12/87 4/88 5/88 7/88 12/87 Assembly Charger connections Timer maintenance Advanced Sermos connectors DC-DC Super Charger Sanyo Extra 3 Construction Spectra three-in-one airplane desisnl 11/84 54 Model Aviation Radio Control Electrics Bob Kopsid 25 West End Dr Lansdale PA 19446 wondrous creations workbench Woody Blanchard Above splendid Russian Maxsim Gorky Thirties spans 76 motivated eight rs wingmounted ones VI HY7Os pylon-mounted ones pair Astro 02 cobalts single battery seven 1200-mAh cells runs Below B-17F Memphis Belle Craft weighs 6 lb 3 oz spans 74 powered four Astro 035 cobalts turning 7 x 4 props Twenty 900-mAh cells job Model has Goldberg retracts flaps ailerons elevator rud der throttle control via Robart H0500 ROGs after 50-ft takeoff roll full throttle climbs steeply half throttle See em 88 KRC Electric Fly Cessna AW -scale scratch-built WE Technical Services plans John Mountjoy Winston-Salem NC Motor R-E-A sport cobalt 60 run 21 1 200-mAh cells driving 13 x 8 prop Speed con trol Astro 200 Flying weight 88 lb wing area 900 sq Finish solid red Per magloss Coverite Norm Hanson Hilton Head Falls SC has large fying field mere 30 ft pat io built Astro Viking floats use Astro speed control meters juice seven 800-mAh cells geared cobalt 05 Its just form Electric Elation 7/84 3/85 5/85 6/85 8/85 9/85 7/85 4/88 4/84 11/84 7/86 9/83 8/86 12/86 3/84 4/84 5/84 6/84 2/85 3/86 9/86 10/86 Safety such8/86 5/87 10/87 3/88 8/88 Flight intensity4/88 Clubs7/84 4/86 5/86 10/87 5/88 7/88 Trivta2/84 8/88 5 Electric design flight examples Kraft Shoestring Hundreds flights four planes Performance Motor/prop/plane com binations Wanderer 99 Solar-powered Glider Giant Electric Scale American Eaglet semiscale Eureka large sport KRC Electric Fly van ery Wasp Kits various Playboy balance point Spectrapower experi ment Exciter 40 ARFs Gee Bee Leisure Lanzo Bomber Helicopters Caliph Silentius Amptique Great Planes ElectriCub Sportique 6 Electric publications Books Magazines references 7 Fuses Discussion/sizes mounts/connections 11/83 3/84 5/84 11/84 5/84 6/84 8/84 9/84 10/84 10/84 10/84 10/85 11/84 11/84 11/84 1/85 3/85 1/85 10/85 9/86 7/88 9/86 12/86 2/87 1/88 7/87 8/87 10/87 2/88 12/87 4/88 9/87 12/87 1/88 6/88 5/88 6/88 8/84 6/85 8/87 12/87 10/84 11/84 6/85 8/85 9/86 5/87 8/87 9/87 8/88 2/84 8/87 9/87 3/88 10/83 11/83 Continued page 144 ASTRO FLIGHT SYSTEMS Challenger Cebat 4 cell 020 Direct $ 7645Geared$ 9771 Challenger CobaS 5 cell 035 Direct $ 6920Geared$11046 Challenger Cobatt7cell 00 Direct $10621Geared$12745 Challenger Cobat 12 cell 10 Direct $14020Geared$16140 Challenger Cobalt 14 cell 25 Direct $16570Geared$18696 CsallengerCebalt 16 cell 40 Direct $19545Geared$21671 Challenger Cebalt 24 cell 60 Direct $28471 Autro DC/DC Super Charger up 1026 cells$8286 Astro AC/DC Charger current aduot$5000 Astro DC/DC Charger$3200 Autro Electric Throttle$5596 Astro On-OS Motor Control Electronic$3196 Andersen Power Pole Connecter 4 hoesiegs /4 pins $200 /pr Gold Pin Moleo ConneGor$210 lot Tamipa Connector$100 lot Hi-Fleo wire 39 ea red & black 16 Gaj240 Strand$200 Daveps 30 Amp Metert81995 Micro 5oct06 Hurnesst$450 3/16 Flat Braid Soldering Batteries$080/ft Heat Shrink Tabing Baheries 25 lor450AFl 900$ 12000CR Flat Packs$150/h 3 eSOAR Flat Packs$160 / ft 4 tot OOOAR & 12000CR Stacked Packs$180 / SANYO CUT-OFF BATTERY PACKSt CELLS dCell 450mA$1950 5Cell 450mA$2300 d5OAR $35Oea 6 Cell 800 mA $2920 7 Cell 800 mA $3315 800AR $395ea 0 Cell 900 mA $2980 7 Cell 900 teA $3380 9000CR $dOSna 6 Cell l200reA 82920 7 Cell 1200059 $3315 12005CR$395eo packs edred hot packs Please specilp desired connectort ELECTRIC POWER KITS MMC USIa MK IV 68 Span Sailplane br 05 Gear$3790 MMC Electric Playboy 67 Span Old Timer tot 05 Gear$2600 Astro Challenger 73 Span Sailplane let 05 Gear$3250 EMD Electra Glide II 73 Span Sailplane tot 08$3100 EMD Themlic Traseler Sailplane 76 Span 05$3100 EMDSkp Knight 44 Span Troinerlor 00$2400 EMD Lightning 39 Span Aerehatic Spec Model 10105$2400 MMC Fast Eddie Aerobatic Sport Model tot 05$2400 AsIro 0005 37 i 05$2400 SHIPPING & HANDLING76 Page CATALOGtJE U0 $800 add$200$200 pp/tsr Closs free 0801 $2000 add$250when requested order $2001 $4000 add$320 $4001 $7000 add$375 Over $7000 odd$400HOBBY HORN CA Addressees add 6% tOe Send 15173 Moran St A] MO VISA / MC 8 & Sep Dale Box 2212 Clreck allow ep 30 days tsrWestmnster Ca 92584 check clearance COD heart charges plus $100 803-831 1 handling Cash OnlyHrs Mon-Fri 9AM 5PM September 1988 55 El Jett Kelety San Francisco CA thought youd like see what famous Clipper old looks like before covering Models 10-ft span will hauled Astro cobalt 40 Jomar speed control Wing twopiece tail removable Friendly youth shown just happened passing Jeff shooting photos nearby park Motor mount Octopussy connector array Simple charge systems Charge-Splitter Guidelines Battery cooler 4 Electric Advantages disadvan tages Easy economical entry-level Electric Elation DAVE BROWN PRODUCTS 4560 Layhigh Rd Hamilton Ohio 45013 13 738-1576 Motor exploded view 6 x 4 prop power RC Giant Scale/de Vries Continued page 141 cates hell Sopwith Triplane quarter-scale next Ive got see good friend called recently test fly newly developed Giant Scale model Hes ace pilot kind guy people call make first flights uncommon procedure amongst Scale designers/builders After maldng meticulous safety inspection new model bit apprehensive about alleron con trol installation designer chosen ose plastic pushrods although aileron its own servo werent supported through full length ground check en gine running showed proper control movement initial test flight attempted After few tries model airborne Hap pily bird easily trimmable friend test pilot made some passes over runway mandatory photo session photographers both well-qualified Giant builders fliers own right After first pass re duced airspeed thought heard some thing second pass engine running full-bore confirmed suspicions aile rons fluttering alarmingly telltale blur both wing tips noise flutter loud enough heard over roar 108 course friend test pilot honked back throttle reduce airspeed made slow sweeping pattem equally gentle straightin approach off-runway landing caused bird tumble damage relatively small assembled experts allowed flut ter resulted unsupported aileron pushrods recommended repalred wing modified provide pushrod tie-down three inches along length drastic corrective action considered adding internal dynamic balances within wing forward aileron spar Rather make both modifications former suggestion increased pushrod support adopted inner plastic rod twopiece pushrods changed less temperature sensitive flexible cable Another day another test flight later bird performed perfectly evidence flutter gone model beauty control alr couple lessons can gained ex perience First test flight new model de sign just thata test pilot must pre pared unexpected qualified meet Second safe flight RC model alrplane con trol surfaces must function air Surface flut ter can render model uncontrollable can cause model disintegrate air Its aggravated high airspeeds strikes slow bird down land immediately proficient test pilots its darn good idea qualified observer two hand initial test flights Unencumbered flying bird observations can abso lutely invaluableas case friends first flight does month Back atcha next month RC Electrics/Kopski Continued page 55 Motor installation Battery installation Templates cooling hole Wiring diagram airhome Prop Stop Authors 1982 flight profile Spectra-Soar flight togram Persuader flight histo gram J-3 flight histogram Playboy flight histogram Wing fuselage con struction Motor power vs model weight Spectra exploded view Charge systems schematics Charge-splitter acces sory Volt- current-meter schematics High-current shunt pic torial Twin wiring diagram DC-DC Super Charger modification 9 Meets comments/coverage Boeing Hawks SAM 76 KRC Electric Fly Intemational Canada South Shore MA Sparks Houston Daniel Boone Silent Fliers Astro Champs 1/84 1/84 1/84 2/84 2/84 3/84 3/84 3/84 3/84 3/84 4/84 6/84 11/84 5/85 6/85 7/85 12/85 4/86 6/87 9/87 10/87 11/84 6/85 7/86 7/87 1/85 7/85 8/85 11/85 12/85 7/86 6/87 11/84 1/85 6/85 1/86 7/86 1/87 6/87 1/88 4/88 5/88 6/85 6/85 12/85 7/86 5/87 6/85 4/86 5/87 8/85 2/86 7/86 10/86 8/85 MAC Huntsville 86 F3E meet Suggestions Largest County Soaring Eagles EMF/Chicago CASA Urion Lake Eastem Free Flight Conference Harbor Soaring Society Midwest Electric Fly WES2 Lehigh Valley First An nual Winston-Salem 10 Miscellaneous Reader mail Series review over sights Things Id like sec Flight logbook Stopwatch transmitter mount AlA Electric series er rata Twins Cold-weather flying Robbe Electric supplies EAA Newsletters Flight records High-current meter Dwight Holley Personal statements Electric Flier Patch Graupner Electric prod ucts ii Motors work Mounts mount assembly Venting Brashes commutators Break-in Bearings Prop adaptors Features Size Testing Power input/output Efficiency Flux rings Comparison Speed reducers belt gear Hot-wind Large Controls/speed controls 9/85 3/86 5/86 5/86 7/86 12/86 7/87 7/86 9/87 10/86 6/87 6/87 7/87 7/87 6/88 7/88 7/88 8/88 6/84 6/85 5/87 6/84 6/84 8/84 8/84 8/84 2/85 6/87 7/87 2/85 2/87 3/87 2/85 12/85 4/87 4/88 3/86 12/86 6/87 5/86 5/86 2/87 3/87 6/87 7/88 9/87 12/87 8/83 5/87 8/83 7/84 11/84 2/87 5/87 7/87 8/87 10/87 8/88 8/83 4/85 8/83 4/85 8/83 8/83 8/83 4/85 8/83 4/85 8/83 4/87 6/87 7/87 4/88 8/83 4/85 4/87 6/87 7/88 8/88 8/83 8/83 8/83 8/83 4/85 11/83 5/84 3/87 3/88 6/88 5/87 8/87 8/88 2/85 4/85 3/86 4/88 5/88 7/88 2/84 6/85 2/86 2/87 7/88 144 Model Aviation OH Scai -Extra 230 Kits Now Available Three Sizes 30% Scale Kit plus 815 shipping 1/3 Scale Kit plus 815 shipping 1/4 Scale Kit ~ plus 810 shipping Cash VISA Certified Check R/C EXTRAS 712-943-4102 RR1 Box 28B Sergeant Bluff IA 51054 12 Photos September 1983 Euphoria 11 aerobatic Motor bat tery etc assortment Whisper V Glider 3-3 Sport Scale Spectra-Soar/Sport/Stunt Buzzard Bombshell OT replica Strato Streak OT replica Mattel Super Star Persuader 05 acrobatic October 1983 Astro 10 Leisure 05 motors Disassem bled motors Cobalt 05 installation Props prop adap tors Motor mounts detailed Batteries assorted Charg ers Field boxes Connectors Blowers coolers January 1984 05 installation 15 belt-drive installa tion Battery cooling air vents Playboy radio installa tion Playboy motor mount Persuader aerobatic radio installation Battery installations February 1984 Switches Fuses Connectors Resis tors speed control Connectors crimp Switch installa tions Radio installations March 1984 i- flight Playboy cabin Spectra Per suader aerobatic April 1984 Motor battery radioweight Tape hinges May 1984 KRC Electric Fly scenes June 1984 Astro Porterfield Gentle Lady Olympic II Olympic 650 July 1984 Sleek motor mount assembly August 1984 Wanderer 99 Transmitter stopwatch mount September 1984 Five varied Electrics Solar-powered Electric October 1984 Ginnt Electricframework American Eaglet semiscale Eurekalarge sport Electric Wasp aerobatic January 1985 Spectra motor/battery combos Battery pack assembly Cobalt 15 mounting Spectra February 1985 Comet kitsport Electric Leisure ar matures Lightweight rudder/elevator mixer March 1985 Auto battery connections Multimeters assorted Connector arrayOctopussy April 1985 Motorslarge May/June 1985 Chargeradvanced construction July 1985 Charge-splitter construction Charge con nectors airborne August 1985 Astro Champs September 1985 PusherGlider Blanchards B-24 SPARKS Houston meet October 1985 Charger maintenance Exciter 40 aero batic December 1985 SAM 76 85 meet Hobby shop Klensm L25d China Clipper Playboy/lithium battery January 1986 1985 KRC Electric Flymany photos February 1986 Adams speed control Orga nizer' Motor noise-suppression capacitors Daniel Boone meet March 1986 Multimeter recommended Grandpa bipe Ellis Grumer Spectrastylized April 1986 Homemade high-current meter shunt May 1986 Exciter 40-size installation Advanced charger Piper Tripacer June 1986 Citabria SparkFire25 aerobatic Sparky July 1986 Hair-dryer blower parts Meter/leads/parts cases August 1986 Economy Electric system Wiring har nesses Electric installation September 1986 Pronto Mountjoy Auto battery con nections Playboy Ewing October 1986 mans huge fleet Evanson Cut awacka Blanchard Large spring clips Sermos connec tors DC-DC Super Charger December 1986 Armatures straight skewed slots Bluebird 15 Grumer Leisure Lanzo Bomber Py Ion Playboy SAM meet January 1987 86 KRC Electric Fly photos February 1987 Astro Viking installation Lanzo Bomber installation Astro cobalt new take-apart design DSC high-current meter March 1987 Dwight Holley Prop slots April 1987 Unbelievable motor Ni-Cd cells sizes OSs etc sizes motors May 1987 Lanzo Bomber installation Astro Viking installation So Long OT Taylor Pod-mounted motors June 1987 Astro 10 original Gollaher Esquire Myers Powerhouse Mountjoy July/August 1987 Caliph installation detail September 1987 Arming switch Fuses & holders Electric Flier patch DC-DC Super Charger modifica tions October 1987 Caliph construction detail December 1987 Leisure Amptique installation de tail Various connectors January 1988 1987 KRC Electric Fly photos February 1988 Zlin 526 Shaw Amptique Wilson Amptique tail wheel Ampeater bipe Kopski Jomar speed controls March 1988 Astro 02/035 gear drive Old/new As tro cobalt brushes K&W folding props Fuse connec tions make April 1988 Ford Flivver True Mystery Electric P 38 Wetzel Waco Taperwing Shaw May 1988 Mystery Electric Amptique 15 installa tion 3-3 Spagnuolo Fenstermacher Leisure Lanzo Bomber Chaplick Amptique Kraynak June 1988 Mystery Electric Ewing Eindecker Da vey Astro cobalt 60 installations Swizzle Stik Griggs July 1988 Goldberg Electra Schmitt Robbe Geier Rumsey Robin Wood Glider Walpole Jersey Goose sport Grumer August 1988 Ferrite 05 Astro gear drive mount Challenger Kopskl Tronics 13 Propellers Sizes Effects pitch power Prop stops Folders Prop slots 14 Radio Choosing Electric Installation Motor noise Range Glitching Power 15 Rules competition Discussion proposals etc 16 Rules thumb Power needed fly Power ROG Power system weight Wing weight Weight importance Kits An application example 17 Switches Toggle Miemawitches Three-position Size Life Master arming Electronic 18 Tables Effects propeller size Plane power system weights Spectra Soar statistics Persuader statistics 3-3 statistics Playboy statistics Wing structures Fuselage structures Recommended motor operation Motor power/model weights Battery performance old/new Spectra Soar flight time Large motor perform ance Motor mounts JTec Sonic11/83 1/83 5/85 8/88 2/84 11/84 9/86 3/87 3/88 6/88 8/88 3/87 1/84 1/84 11/84 6/85 2/86 8/87 6/85 6/85 9/87 9/87 11/84 1/85 2/85 3/85 8/85 6/86 9/86 10/86 12/86 6/87 4/88 8/88 4/84 4/84 4/84 4/84 4/84 4/84 10/84 2/84 2/84 1/85 8/87 2/84 2/84 2/84 6/88 2/84 9/87 6/88 9/87 11/83 4/85 1/84 3/84 3/84 3/84 3/84 4/84 4/84 5/84 6/84 9/84 1/85 4/85 September 1988 145 L OPS 18 engine quarter scale Contact us free engine test results SThe CmAe~eR% 9m6o4 9i0 Power ranges7/85 Capacitors2/86 Feel12/86 New motors/im-12/86 2/87 3/88 proved motors Unbelievable4/87 7/87 Car motors6/87 Keller motor nomencla-7/87 10/87 ture Power supply6/87 Leisure2/88 Recommended charge current Article index Ni-Cd cell weights DC-DC Super Charger mod parts list Connector wire resis tance Leisure 05 perform ance Caliph power systems Astm 15 props/power Geared Astro 05 15 props/power Popular equipment 85 Electric Fly 19 Weight Importance Plane/power system Radio servo receiver battery Covering Framework examples 20 Wfring Size/kind/loss/weight Soldering Connectors Auto model chargers Organizer Twins 6/85 9/85 4/87 9/87 12/87 2/88 2/88 7/88 8/88 3/86 1/84 4/84 8/87 1/84 1/84 4/84 10/84 11/84 2/84 10/87 12/87 2/84 2/84 3/85 7/85 2/86 6/87 So ends another columnalbeit somewhat unus ual hope find useful doing couldnt help think useful master index Electric articles magazines last 15 years would Would ever killer project Next month back normal column format Please forward comment question SASE please photo ad dress given very top column Thanks five years fun everyone RC Helicopters/Jolly Continued page 56 side frames tail tube gyro mount engine mount bearing mounts made fa miliar friend aluminum However landing gear tail rotor housing washout assembly blade grips blade mounts tail rotor mounts bellcranks yoke main reduction gear tail rotor blades molded fiber-filled plastic rest X-Cell made accepted materials Included smoked Lexan canopy all-metal inline swashplate metal clutch steel starting shaft both main tail rotor shafts centerless ground hardened steel As layout X-Cell conventional two side frames trapping engine mounts bearing mounts tail tube engine mounted vertically glow plug pointing aft starting shaft positioned forward main rotor shaft main reduction gear nylon has tail-rotor-drive takeoff track molded side covered least mistake 60-size X-Cell has ball bearings something rotates would expect control system virtually slop-free featur ing four-point attachment swashplate Col lective pitch activated via mixer roll servo output arm Using method 200 col lective pitch travel possible fore-and-aft cyclic pitch elevator servo mounted unique position just aft main rotor shaft its pushrod both straight short As matter fact pushrods straight runs course adds precise response al ready tight controls As far physical statistics go X-Cell 60 has overall length 53 height 16 main rotor diameter 57 engine-torotor reduction gear ratio 91 feature unique X-Cell use delta hinge tail rotor Theoretically reduces effect side gusts machine cant tell difference tell truth feature interesting Making use stock flybar weights adjust able head dampening wide collective range produces very adaptable machine can made respond needs wide range fliers novices all-out aerobatic perform ers looking X-Cell should get accessories designed adaptable other machines First would Rotor-Sport blades have proven give great performance well made ex hibit good characteristics during aerobatics cluding autorotations have commend Miniature Aircraft its use sticky-back vinyl blade covering excellent choice nd will lift off use Also available Magna pipes ex haust system allows smooth power keeps mass Helicopters longitudinal centerof-gravity As mentioned earlier instruction manual excellent Following letter will yield very easily built smooth-flying aerobatic per former After flying X-Cell have say few machines will match its flight performance probably best-rolling Helicop ter available today Just before mailed off months colusim magazines editorial office Ted Schoonard kindly sent photos some accessories X-Cell noteworthy Quick Silver version basically three-piece lightweight fiberglass molding turns stock X-Cell full-bodied FM-style machine addition 10 oz all-up weight mechanics have modified ac cept fuselage Merely remove canopy tail rotor housing install two fuselage halves over mechanics Theres real good thinking total adjustments can made removing mechanics shell will report other updates later column am now getting close running out space summary would like state X-Cell combination quality parts sound cur rent Helicopter design thinking brought together great kit yielding Helicopter great performance Because Schoonards strong interest improving products expect will see still excellent products coming years now personal note Wait Schoonard has very ill during first part 1988 behalf fraternity RC Helicopter enthusi asts congratulate Walt X-Cell wish speedy recovery can get back Helicopters love much BCNU RC Pylon Racing/Hager Continued page 57 brush cleaning place paper towel Spray fine mist WD4O other com parable lubricant parts Inspect interior crankcase flash sharp edges around ports machined areas spect carefully presence foreign materi al Using #11 X-Acto blade gently clean rough and/or sharp edges Inspect area sleeve goes case high spots rough edges detected wrap piece #400or #600-grit wet/dry sandpaper around fin ger dowel spray some WD4O sandpa per gently rotate sandpaper bore area Inspect rear crankcase cover appears crankshaft hitting cover some places polish rear covers face portion faces crankshaft things assem 146 Model Aviation I I II U UHuA Send $1 tO toupon lsrwithysurssme andsddresallsADDRESS MlcroMark 340-569Snyder Ave flvkeIeYHIhta NJ O722CITYSTATEZIP3
Edition: Model Aviation - 1988/09
Page Numbers: 54, 55, 144, 145, 146
THIS very special issue because represents fifth year association Model Aviation Its hard believe first Electric writing appeared Septem ber 1983 issueand seems just like last week September 83 issue first install ment MAs Electric series About Elec trics Originally intended four- five-part effort project grew total 10 install ments wrapping up June 1986 issue Ap parently magazine sales did decline new Electric coverage offered good folks MA asked continue regular monthly column Thus began regular RC Electrics column July 1986 Along way also appeared two con struction articles Spectra November 1984 Mods DC-DC Super Charger Sep tember 1987 Another feature article KRC Electric Fly appeared January 1985 Throughout Ive always tried share Electric fun success Fun what hobby for Electric fun has its own special appeal since sharing fun special fun Im particularly indebted Model Aviation giving opportunity Im equally grateful modeler/read ers have frequently written thanks information other words encourage ment Without no purpose writ ing What follows probably difficult piece Ive written Its attempt five-year index above writing readers have asking such index celebration anniversary index bit unusual Basically its chronological listing sortsbut within topical areas Only main topics given alphabetically subtopics aremore lessgiven timespread fashion means may have look little longer list follows find what want and/or look under topic also means wouldnt classic index fashion Anyway Ive tried very hard include evgry thingand get everything right probably didnt Please forgive errors may cause difficulty Constructing index quite naturally forced reread five-years worth stuff WHEW Thats lot stuffi what came Out effort realization just about still timely mean example much what appeared 1983 part still contemporary fact things outdated materials peculiar products time have survived good because Octo ber 1983 issue wrote Soon Electric products today will come dated will specific how-to examples based dont want series become dated want continue basic value understanding utilization whatever new better products come along Im biased course feel past issues MA still hold value eager Electric mod eler such may want hang Newcomers Electric may want dig back few years see what offered As said theecs lot stuff Now no further rambling Bobs five-year Electric index September 1983 September 1988 1 Basic electricity Part One- voltage current Part Two- Ohms Law power Practical example Part Three- Electric terms sizes Pan Four- meters basic Part Five using multimeter Part Six using multimeter Part Seven using multimeter Part Eight other multimeter parts Part Nine high-current shunt Part Ten special multimeter functions Part Eleven meter effect circuit 2 Batteries chargers charging Kinds12/83 6/84 Cooling12/83 7/86 2/87 10/87 Connections/connectors12/83 7/85 2/88 7/88 Capacitysize12/83 4/87 8/87 Power12/83 7/85 Configurations12/83 Heat12/83 7/86 3/85 4/85 5/85 7/85 8/85 10/85 12/85 2/86 3/86 4/86 5/86 7/86 Life9/84 12/84 Charging12/83 9/84 3/85 5/85 6/85 7/85 5/86 4/87 8/87 1/85 3/85 3/85 9/86 10/86 12/86 10/85 12/85 5/86 10/86 12/87 10/86 9/87 10/87 12/87 4/88 5/88 7/88 12/87 Assembly Charger connections Timer maintenance Advanced Sermos connectors DC-DC Super Charger Sanyo Extra 3 Construction Spectra three-in-one airplane desisnl 11/84 54 Model Aviation Radio Control Electrics Bob Kopsid 25 West End Dr Lansdale PA 19446 wondrous creations workbench Woody Blanchard Above splendid Russian Maxsim Gorky Thirties spans 76 motivated eight rs wingmounted ones VI HY7Os pylon-mounted ones pair Astro 02 cobalts single battery seven 1200-mAh cells runs Below B-17F Memphis Belle Craft weighs 6 lb 3 oz spans 74 powered four Astro 035 cobalts turning 7 x 4 props Twenty 900-mAh cells job Model has Goldberg retracts flaps ailerons elevator rud der throttle control via Robart H0500 ROGs after 50-ft takeoff roll full throttle climbs steeply half throttle See em 88 KRC Electric Fly Cessna AW -scale scratch-built WE Technical Services plans John Mountjoy Winston-Salem NC Motor R-E-A sport cobalt 60 run 21 1 200-mAh cells driving 13 x 8 prop Speed con trol Astro 200 Flying weight 88 lb wing area 900 sq Finish solid red Per magloss Coverite Norm Hanson Hilton Head Falls SC has large fying field mere 30 ft pat io built Astro Viking floats use Astro speed control meters juice seven 800-mAh cells geared cobalt 05 Its just form Electric Elation 7/84 3/85 5/85 6/85 8/85 9/85 7/85 4/88 4/84 11/84 7/86 9/83 8/86 12/86 3/84 4/84 5/84 6/84 2/85 3/86 9/86 10/86 Safety such8/86 5/87 10/87 3/88 8/88 Flight intensity4/88 Clubs7/84 4/86 5/86 10/87 5/88 7/88 Trivta2/84 8/88 5 Electric design flight examples Kraft Shoestring Hundreds flights four planes Performance Motor/prop/plane com binations Wanderer 99 Solar-powered Glider Giant Electric Scale American Eaglet semiscale Eureka large sport KRC Electric Fly van ery Wasp Kits various Playboy balance point Spectrapower experi ment Exciter 40 ARFs Gee Bee Leisure Lanzo Bomber Helicopters Caliph Silentius Amptique Great Planes ElectriCub Sportique 6 Electric publications Books Magazines references 7 Fuses Discussion/sizes mounts/connections 11/83 3/84 5/84 11/84 5/84 6/84 8/84 9/84 10/84 10/84 10/84 10/85 11/84 11/84 11/84 1/85 3/85 1/85 10/85 9/86 7/88 9/86 12/86 2/87 1/88 7/87 8/87 10/87 2/88 12/87 4/88 9/87 12/87 1/88 6/88 5/88 6/88 8/84 6/85 8/87 12/87 10/84 11/84 6/85 8/85 9/86 5/87 8/87 9/87 8/88 2/84 8/87 9/87 3/88 10/83 11/83 Continued page 144 ASTRO FLIGHT SYSTEMS Challenger Cebat 4 cell 020 Direct $ 7645Geared$ 9771 Challenger CobaS 5 cell 035 Direct $ 6920Geared$11046 Challenger Cobatt7cell 00 Direct $10621Geared$12745 Challenger Cobat 12 cell 10 Direct $14020Geared$16140 Challenger Cobalt 14 cell 25 Direct $16570Geared$18696 CsallengerCebalt 16 cell 40 Direct $19545Geared$21671 Challenger Cebalt 24 cell 60 Direct $28471 Autro DC/DC Super Charger up 1026 cells$8286 Astro AC/DC Charger current aduot$5000 Astro DC/DC Charger$3200 Autro Electric Throttle$5596 Astro On-OS Motor Control Electronic$3196 Andersen Power Pole Connecter 4 hoesiegs /4 pins $200 /pr Gold Pin Moleo ConneGor$210 lot Tamipa Connector$100 lot Hi-Fleo wire 39 ea red & black 16 Gaj240 Strand$200 Daveps 30 Amp Metert81995 Micro 5oct06 Hurnesst$450 3/16 Flat Braid Soldering Batteries$080/ft Heat Shrink Tabing Baheries 25 lor450AFl 900$ 12000CR Flat Packs$150/h 3 eSOAR Flat Packs$160 / ft 4 tot OOOAR & 12000CR Stacked Packs$180 / SANYO CUT-OFF BATTERY PACKSt CELLS dCell 450mA$1950 5Cell 450mA$2300 d5OAR $35Oea 6 Cell 800 mA $2920 7 Cell 800 mA $3315 800AR $395ea 0 Cell 900 mA $2980 7 Cell 900 teA $3380 9000CR $dOSna 6 Cell l200reA 82920 7 Cell 1200059 $3315 12005CR$395eo packs edred hot packs Please specilp desired connectort ELECTRIC POWER KITS MMC USIa MK IV 68 Span Sailplane br 05 Gear$3790 MMC Electric Playboy 67 Span Old Timer tot 05 Gear$2600 Astro Challenger 73 Span Sailplane let 05 Gear$3250 EMD Electra Glide II 73 Span Sailplane tot 08$3100 EMD Themlic Traseler Sailplane 76 Span 05$3100 EMDSkp Knight 44 Span Troinerlor 00$2400 EMD Lightning 39 Span Aerehatic Spec Model 10105$2400 MMC Fast Eddie Aerobatic Sport Model tot 05$2400 AsIro 0005 37 i 05$2400 SHIPPING & HANDLING76 Page CATALOGtJE U0 $800 add$200$200 pp/tsr Closs free 0801 $2000 add$250when requested order $2001 $4000 add$320 $4001 $7000 add$375 Over $7000 odd$400HOBBY HORN CA Addressees add 6% tOe Send 15173 Moran St A] MO VISA / MC 8 & Sep Dale Box 2212 Clreck allow ep 30 days tsrWestmnster Ca 92584 check clearance COD heart charges plus $100 803-831 1 handling Cash OnlyHrs Mon-Fri 9AM 5PM September 1988 55 El Jett Kelety San Francisco CA thought youd like see what famous Clipper old looks like before covering Models 10-ft span will hauled Astro cobalt 40 Jomar speed control Wing twopiece tail removable Friendly youth shown just happened passing Jeff shooting photos nearby park Motor mount Octopussy connector array Simple charge systems Charge-Splitter Guidelines Battery cooler 4 Electric Advantages disadvan tages Easy economical entry-level Electric Elation DAVE BROWN PRODUCTS 4560 Layhigh Rd Hamilton Ohio 45013 13 738-1576 Motor exploded view 6 x 4 prop power RC Giant Scale/de Vries Continued page 141 cates hell Sopwith Triplane quarter-scale next Ive got see good friend called recently test fly newly developed Giant Scale model Hes ace pilot kind guy people call make first flights uncommon procedure amongst Scale designers/builders After maldng meticulous safety inspection new model bit apprehensive about alleron con trol installation designer chosen ose plastic pushrods although aileron its own servo werent supported through full length ground check en gine running showed proper control movement initial test flight attempted After few tries model airborne Hap pily bird easily trimmable friend test pilot made some passes over runway mandatory photo session photographers both well-qualified Giant builders fliers own right After first pass re duced airspeed thought heard some thing second pass engine running full-bore confirmed suspicions aile rons fluttering alarmingly telltale blur both wing tips noise flutter loud enough heard over roar 108 course friend test pilot honked back throttle reduce airspeed made slow sweeping pattem equally gentle straightin approach off-runway landing caused bird tumble damage relatively small assembled experts allowed flut ter resulted unsupported aileron pushrods recommended repalred wing modified provide pushrod tie-down three inches along length drastic corrective action considered adding internal dynamic balances within wing forward aileron spar Rather make both modifications former suggestion increased pushrod support adopted inner plastic rod twopiece pushrods changed less temperature sensitive flexible cable Another day another test flight later bird performed perfectly evidence flutter gone model beauty control alr couple lessons can gained ex perience First test flight new model de sign just thata test pilot must pre pared unexpected qualified meet Second safe flight RC model alrplane con trol surfaces must function air Surface flut ter can render model uncontrollable can cause model disintegrate air Its aggravated high airspeeds strikes slow bird down land immediately proficient test pilots its darn good idea qualified observer two hand initial test flights Unencumbered flying bird observations can abso lutely invaluableas case friends first flight does month Back atcha next month RC Electrics/Kopski Continued page 55 Motor installation Battery installation Templates cooling hole Wiring diagram airhome Prop Stop Authors 1982 flight profile Spectra-Soar flight togram Persuader flight histo gram J-3 flight histogram Playboy flight histogram Wing fuselage con struction Motor power vs model weight Spectra exploded view Charge systems schematics Charge-splitter acces sory Volt- current-meter schematics High-current shunt pic torial Twin wiring diagram DC-DC Super Charger modification 9 Meets comments/coverage Boeing Hawks SAM 76 KRC Electric Fly Intemational Canada South Shore MA Sparks Houston Daniel Boone Silent Fliers Astro Champs 1/84 1/84 1/84 2/84 2/84 3/84 3/84 3/84 3/84 3/84 4/84 6/84 11/84 5/85 6/85 7/85 12/85 4/86 6/87 9/87 10/87 11/84 6/85 7/86 7/87 1/85 7/85 8/85 11/85 12/85 7/86 6/87 11/84 1/85 6/85 1/86 7/86 1/87 6/87 1/88 4/88 5/88 6/85 6/85 12/85 7/86 5/87 6/85 4/86 5/87 8/85 2/86 7/86 10/86 8/85 MAC Huntsville 86 F3E meet Suggestions Largest County Soaring Eagles EMF/Chicago CASA Urion Lake Eastem Free Flight Conference Harbor Soaring Society Midwest Electric Fly WES2 Lehigh Valley First An nual Winston-Salem 10 Miscellaneous Reader mail Series review over sights Things Id like sec Flight logbook Stopwatch transmitter mount AlA Electric series er rata Twins Cold-weather flying Robbe Electric supplies EAA Newsletters Flight records High-current meter Dwight Holley Personal statements Electric Flier Patch Graupner Electric prod ucts ii Motors work Mounts mount assembly Venting Brashes commutators Break-in Bearings Prop adaptors Features Size Testing Power input/output Efficiency Flux rings Comparison Speed reducers belt gear Hot-wind Large Controls/speed controls 9/85 3/86 5/86 5/86 7/86 12/86 7/87 7/86 9/87 10/86 6/87 6/87 7/87 7/87 6/88 7/88 7/88 8/88 6/84 6/85 5/87 6/84 6/84 8/84 8/84 8/84 2/85 6/87 7/87 2/85 2/87 3/87 2/85 12/85 4/87 4/88 3/86 12/86 6/87 5/86 5/86 2/87 3/87 6/87 7/88 9/87 12/87 8/83 5/87 8/83 7/84 11/84 2/87 5/87 7/87 8/87 10/87 8/88 8/83 4/85 8/83 4/85 8/83 8/83 8/83 4/85 8/83 4/85 8/83 4/87 6/87 7/87 4/88 8/83 4/85 4/87 6/87 7/88 8/88 8/83 8/83 8/83 8/83 4/85 11/83 5/84 3/87 3/88 6/88 5/87 8/87 8/88 2/85 4/85 3/86 4/88 5/88 7/88 2/84 6/85 2/86 2/87 7/88 144 Model Aviation OH Scai -Extra 230 Kits Now Available Three Sizes 30% Scale Kit plus 815 shipping 1/3 Scale Kit plus 815 shipping 1/4 Scale Kit ~ plus 810 shipping Cash VISA Certified Check R/C EXTRAS 712-943-4102 RR1 Box 28B Sergeant Bluff IA 51054 12 Photos September 1983 Euphoria 11 aerobatic Motor bat tery etc assortment Whisper V Glider 3-3 Sport Scale Spectra-Soar/Sport/Stunt Buzzard Bombshell OT replica Strato Streak OT replica Mattel Super Star Persuader 05 acrobatic October 1983 Astro 10 Leisure 05 motors Disassem bled motors Cobalt 05 installation Props prop adap tors Motor mounts detailed Batteries assorted Charg ers Field boxes Connectors Blowers coolers January 1984 05 installation 15 belt-drive installa tion Battery cooling air vents Playboy radio installa tion Playboy motor mount Persuader aerobatic radio installation Battery installations February 1984 Switches Fuses Connectors Resis tors speed control Connectors crimp Switch installa tions Radio installations March 1984 i- flight Playboy cabin Spectra Per suader aerobatic April 1984 Motor battery radioweight Tape hinges May 1984 KRC Electric Fly scenes June 1984 Astro Porterfield Gentle Lady Olympic II Olympic 650 July 1984 Sleek motor mount assembly August 1984 Wanderer 99 Transmitter stopwatch mount September 1984 Five varied Electrics Solar-powered Electric October 1984 Ginnt Electricframework American Eaglet semiscale Eurekalarge sport Electric Wasp aerobatic January 1985 Spectra motor/battery combos Battery pack assembly Cobalt 15 mounting Spectra February 1985 Comet kitsport Electric Leisure ar matures Lightweight rudder/elevator mixer March 1985 Auto battery connections Multimeters assorted Connector arrayOctopussy April 1985 Motorslarge May/June 1985 Chargeradvanced construction July 1985 Charge-splitter construction Charge con nectors airborne August 1985 Astro Champs September 1985 PusherGlider Blanchards B-24 SPARKS Houston meet October 1985 Charger maintenance Exciter 40 aero batic December 1985 SAM 76 85 meet Hobby shop Klensm L25d China Clipper Playboy/lithium battery January 1986 1985 KRC Electric Flymany photos February 1986 Adams speed control Orga nizer' Motor noise-suppression capacitors Daniel Boone meet March 1986 Multimeter recommended Grandpa bipe Ellis Grumer Spectrastylized April 1986 Homemade high-current meter shunt May 1986 Exciter 40-size installation Advanced charger Piper Tripacer June 1986 Citabria SparkFire25 aerobatic Sparky July 1986 Hair-dryer blower parts Meter/leads/parts cases August 1986 Economy Electric system Wiring har nesses Electric installation September 1986 Pronto Mountjoy Auto battery con nections Playboy Ewing October 1986 mans huge fleet Evanson Cut awacka Blanchard Large spring clips Sermos connec tors DC-DC Super Charger December 1986 Armatures straight skewed slots Bluebird 15 Grumer Leisure Lanzo Bomber Py Ion Playboy SAM meet January 1987 86 KRC Electric Fly photos February 1987 Astro Viking installation Lanzo Bomber installation Astro cobalt new take-apart design DSC high-current meter March 1987 Dwight Holley Prop slots April 1987 Unbelievable motor Ni-Cd cells sizes OSs etc sizes motors May 1987 Lanzo Bomber installation Astro Viking installation So Long OT Taylor Pod-mounted motors June 1987 Astro 10 original Gollaher Esquire Myers Powerhouse Mountjoy July/August 1987 Caliph installation detail September 1987 Arming switch Fuses & holders Electric Flier patch DC-DC Super Charger modifica tions October 1987 Caliph construction detail December 1987 Leisure Amptique installation de tail Various connectors January 1988 1987 KRC Electric Fly photos February 1988 Zlin 526 Shaw Amptique Wilson Amptique tail wheel Ampeater bipe Kopski Jomar speed controls March 1988 Astro 02/035 gear drive Old/new As tro cobalt brushes K&W folding props Fuse connec tions make April 1988 Ford Flivver True Mystery Electric P 38 Wetzel Waco Taperwing Shaw May 1988 Mystery Electric Amptique 15 installa tion 3-3 Spagnuolo Fenstermacher Leisure Lanzo Bomber Chaplick Amptique Kraynak June 1988 Mystery Electric Ewing Eindecker Da vey Astro cobalt 60 installations Swizzle Stik Griggs July 1988 Goldberg Electra Schmitt Robbe Geier Rumsey Robin Wood Glider Walpole Jersey Goose sport Grumer August 1988 Ferrite 05 Astro gear drive mount Challenger Kopskl Tronics 13 Propellers Sizes Effects pitch power Prop stops Folders Prop slots 14 Radio Choosing Electric Installation Motor noise Range Glitching Power 15 Rules competition Discussion proposals etc 16 Rules thumb Power needed fly Power ROG Power system weight Wing weight Weight importance Kits An application example 17 Switches Toggle Miemawitches Three-position Size Life Master arming Electronic 18 Tables Effects propeller size Plane power system weights Spectra Soar statistics Persuader statistics 3-3 statistics Playboy statistics Wing structures Fuselage structures Recommended motor operation Motor power/model weights Battery performance old/new Spectra Soar flight time Large motor perform ance Motor mounts JTec Sonic11/83 1/83 5/85 8/88 2/84 11/84 9/86 3/87 3/88 6/88 8/88 3/87 1/84 1/84 11/84 6/85 2/86 8/87 6/85 6/85 9/87 9/87 11/84 1/85 2/85 3/85 8/85 6/86 9/86 10/86 12/86 6/87 4/88 8/88 4/84 4/84 4/84 4/84 4/84 4/84 10/84 2/84 2/84 1/85 8/87 2/84 2/84 2/84 6/88 2/84 9/87 6/88 9/87 11/83 4/85 1/84 3/84 3/84 3/84 3/84 4/84 4/84 5/84 6/84 9/84 1/85 4/85 September 1988 145 L OPS 18 engine quarter scale Contact us free engine test results SThe CmAe~eR% 9m6o4 9i0 Power ranges7/85 Capacitors2/86 Feel12/86 New motors/im-12/86 2/87 3/88 proved motors Unbelievable4/87 7/87 Car motors6/87 Keller motor nomencla-7/87 10/87 ture Power supply6/87 Leisure2/88 Recommended charge current Article index Ni-Cd cell weights DC-DC Super Charger mod parts list Connector wire resis tance Leisure 05 perform ance Caliph power systems Astm 15 props/power Geared Astro 05 15 props/power Popular equipment 85 Electric Fly 19 Weight Importance Plane/power system Radio servo receiver battery Covering Framework examples 20 Wfring Size/kind/loss/weight Soldering Connectors Auto model chargers Organizer Twins 6/85 9/85 4/87 9/87 12/87 2/88 2/88 7/88 8/88 3/86 1/84 4/84 8/87 1/84 1/84 4/84 10/84 11/84 2/84 10/87 12/87 2/84 2/84 3/85 7/85 2/86 6/87 So ends another columnalbeit somewhat unus ual hope find useful doing couldnt help think useful master index Electric articles magazines last 15 years would Would ever killer project Next month back normal column format Please forward comment question SASE please photo ad dress given very top column Thanks five years fun everyone RC Helicopters/Jolly Continued page 56 side frames tail tube gyro mount engine mount bearing mounts made fa miliar friend aluminum However landing gear tail rotor housing washout assembly blade grips blade mounts tail rotor mounts bellcranks yoke main reduction gear tail rotor blades molded fiber-filled plastic rest X-Cell made accepted materials Included smoked Lexan canopy all-metal inline swashplate metal clutch steel starting shaft both main tail rotor shafts centerless ground hardened steel As layout X-Cell conventional two side frames trapping engine mounts bearing mounts tail tube engine mounted vertically glow plug pointing aft starting shaft positioned forward main rotor shaft main reduction gear nylon has tail-rotor-drive takeoff track molded side covered least mistake 60-size X-Cell has ball bearings something rotates would expect control system virtually slop-free featur ing four-point attachment swashplate Col lective pitch activated via mixer roll servo output arm Using method 200 col lective pitch travel possible fore-and-aft cyclic pitch elevator servo mounted unique position just aft main rotor shaft its pushrod both straight short As matter fact pushrods straight runs course adds precise response al ready tight controls As far physical statistics go X-Cell 60 has overall length 53 height 16 main rotor diameter 57 engine-torotor reduction gear ratio 91 feature unique X-Cell use delta hinge tail rotor Theoretically reduces effect side gusts machine cant tell difference tell truth feature interesting Making use stock flybar weights adjust able head dampening wide collective range produces very adaptable machine can made respond needs wide range fliers novices all-out aerobatic perform ers looking X-Cell should get accessories designed adaptable other machines First would Rotor-Sport blades have proven give great performance well made ex hibit good characteristics during aerobatics cluding autorotations have commend Miniature Aircraft its use sticky-back vinyl blade covering excellent choice nd will lift off use Also available Magna pipes ex haust system allows smooth power keeps mass Helicopters longitudinal centerof-gravity As mentioned earlier instruction manual excellent Following letter will yield very easily built smooth-flying aerobatic per former After flying X-Cell have say few machines will match its flight performance probably best-rolling Helicop ter available today Just before mailed off months colusim magazines editorial office Ted Schoonard kindly sent photos some accessories X-Cell noteworthy Quick Silver version basically three-piece lightweight fiberglass molding turns stock X-Cell full-bodied FM-style machine addition 10 oz all-up weight mechanics have modified ac cept fuselage Merely remove canopy tail rotor housing install two fuselage halves over mechanics Theres real good thinking total adjustments can made removing mechanics shell will report other updates later column am now getting close running out space summary would like state X-Cell combination quality parts sound cur rent Helicopter design thinking brought together great kit yielding Helicopter great performance Because Schoonards strong interest improving products expect will see still excellent products coming years now personal note Wait Schoonard has very ill during first part 1988 behalf fraternity RC Helicopter enthusi asts congratulate Walt X-Cell wish speedy recovery can get back Helicopters love much BCNU RC Pylon Racing/Hager Continued page 57 brush cleaning place paper towel Spray fine mist WD4O other com parable lubricant parts Inspect interior crankcase flash sharp edges around ports machined areas spect carefully presence foreign materi al Using #11 X-Acto blade gently clean rough and/or sharp edges Inspect area sleeve goes case high spots rough edges detected wrap piece #400or #600-grit wet/dry sandpaper around fin ger dowel spray some WD4O sandpa per gently rotate sandpaper bore area Inspect rear crankcase cover appears crankshaft hitting cover some places polish rear covers face portion faces crankshaft things assem 146 Model Aviation I I II U UHuA Send $1 tO toupon lsrwithysurssme andsddresallsADDRESS MlcroMark 340-569Snyder Ave flvkeIeYHIhta NJ O722CITYSTATEZIP3
Edition: Model Aviation - 1988/09
Page Numbers: 54, 55, 144, 145, 146
THIS very special issue because represents fifth year association Model Aviation Its hard believe first Electric writing appeared Septem ber 1983 issueand seems just like last week September 83 issue first install ment MAs Electric series About Elec trics Originally intended four- five-part effort project grew total 10 install ments wrapping up June 1986 issue Ap parently magazine sales did decline new Electric coverage offered good folks MA asked continue regular monthly column Thus began regular RC Electrics column July 1986 Along way also appeared two con struction articles Spectra November 1984 Mods DC-DC Super Charger Sep tember 1987 Another feature article KRC Electric Fly appeared January 1985 Throughout Ive always tried share Electric fun success Fun what hobby for Electric fun has its own special appeal since sharing fun special fun Im particularly indebted Model Aviation giving opportunity Im equally grateful modeler/read ers have frequently written thanks information other words encourage ment Without no purpose writ ing What follows probably difficult piece Ive written Its attempt five-year index above writing readers have asking such index celebration anniversary index bit unusual Basically its chronological listing sortsbut within topical areas Only main topics given alphabetically subtopics aremore lessgiven timespread fashion means may have look little longer list follows find what want and/or look under topic also means wouldnt classic index fashion Anyway Ive tried very hard include evgry thingand get everything right probably didnt Please forgive errors may cause difficulty Constructing index quite naturally forced reread five-years worth stuff WHEW Thats lot stuffi what came Out effort realization just about still timely mean example much what appeared 1983 part still contemporary fact things outdated materials peculiar products time have survived good because Octo ber 1983 issue wrote Soon Electric products today will come dated will specific how-to examples based dont want series become dated want continue basic value understanding utilization whatever new better products come along Im biased course feel past issues MA still hold value eager Electric mod eler such may want hang Newcomers Electric may want dig back few years see what offered As said theecs lot stuff Now no further rambling Bobs five-year Electric index September 1983 September 1988 1 Basic electricity Part One- voltage current Part Two- Ohms Law power Practical example Part Three- Electric terms sizes Pan Four- meters basic Part Five using multimeter Part Six using multimeter Part Seven using multimeter Part Eight other multimeter parts Part Nine high-current shunt Part Ten special multimeter functions Part Eleven meter effect circuit 2 Batteries chargers charging Kinds12/83 6/84 Cooling12/83 7/86 2/87 10/87 Connections/connectors12/83 7/85 2/88 7/88 Capacitysize12/83 4/87 8/87 Power12/83 7/85 Configurations12/83 Heat12/83 7/86 3/85 4/85 5/85 7/85 8/85 10/85 12/85 2/86 3/86 4/86 5/86 7/86 Life9/84 12/84 Charging12/83 9/84 3/85 5/85 6/85 7/85 5/86 4/87 8/87 1/85 3/85 3/85 9/86 10/86 12/86 10/85 12/85 5/86 10/86 12/87 10/86 9/87 10/87 12/87 4/88 5/88 7/88 12/87 Assembly Charger connections Timer maintenance Advanced Sermos connectors DC-DC Super Charger Sanyo Extra 3 Construction Spectra three-in-one airplane desisnl 11/84 54 Model Aviation Radio Control Electrics Bob Kopsid 25 West End Dr Lansdale PA 19446 wondrous creations workbench Woody Blanchard Above splendid Russian Maxsim Gorky Thirties spans 76 motivated eight rs wingmounted ones VI HY7Os pylon-mounted ones pair Astro 02 cobalts single battery seven 1200-mAh cells runs Below B-17F Memphis Belle Craft weighs 6 lb 3 oz spans 74 powered four Astro 035 cobalts turning 7 x 4 props Twenty 900-mAh cells job Model has Goldberg retracts flaps ailerons elevator rud der throttle control via Robart H0500 ROGs after 50-ft takeoff roll full throttle climbs steeply half throttle See em 88 KRC Electric Fly Cessna AW -scale scratch-built WE Technical Services plans John Mountjoy Winston-Salem NC Motor R-E-A sport cobalt 60 run 21 1 200-mAh cells driving 13 x 8 prop Speed con trol Astro 200 Flying weight 88 lb wing area 900 sq Finish solid red Per magloss Coverite Norm Hanson Hilton Head Falls SC has large fying field mere 30 ft pat io built Astro Viking floats use Astro speed control meters juice seven 800-mAh cells geared cobalt 05 Its just form Electric Elation 7/84 3/85 5/85 6/85 8/85 9/85 7/85 4/88 4/84 11/84 7/86 9/83 8/86 12/86 3/84 4/84 5/84 6/84 2/85 3/86 9/86 10/86 Safety such8/86 5/87 10/87 3/88 8/88 Flight intensity4/88 Clubs7/84 4/86 5/86 10/87 5/88 7/88 Trivta2/84 8/88 5 Electric design flight examples Kraft Shoestring Hundreds flights four planes Performance Motor/prop/plane com binations Wanderer 99 Solar-powered Glider Giant Electric Scale American Eaglet semiscale Eureka large sport KRC Electric Fly van ery Wasp Kits various Playboy balance point Spectrapower experi ment Exciter 40 ARFs Gee Bee Leisure Lanzo Bomber Helicopters Caliph Silentius Amptique Great Planes ElectriCub Sportique 6 Electric publications Books Magazines references 7 Fuses Discussion/sizes mounts/connections 11/83 3/84 5/84 11/84 5/84 6/84 8/84 9/84 10/84 10/84 10/84 10/85 11/84 11/84 11/84 1/85 3/85 1/85 10/85 9/86 7/88 9/86 12/86 2/87 1/88 7/87 8/87 10/87 2/88 12/87 4/88 9/87 12/87 1/88 6/88 5/88 6/88 8/84 6/85 8/87 12/87 10/84 11/84 6/85 8/85 9/86 5/87 8/87 9/87 8/88 2/84 8/87 9/87 3/88 10/83 11/83 Continued page 144 ASTRO FLIGHT SYSTEMS Challenger Cebat 4 cell 020 Direct $ 7645Geared$ 9771 Challenger CobaS 5 cell 035 Direct $ 6920Geared$11046 Challenger Cobatt7cell 00 Direct $10621Geared$12745 Challenger Cobat 12 cell 10 Direct $14020Geared$16140 Challenger Cobalt 14 cell 25 Direct $16570Geared$18696 CsallengerCebalt 16 cell 40 Direct $19545Geared$21671 Challenger Cebalt 24 cell 60 Direct $28471 Autro DC/DC Super Charger up 1026 cells$8286 Astro AC/DC Charger current aduot$5000 Astro DC/DC Charger$3200 Autro Electric Throttle$5596 Astro On-OS Motor Control Electronic$3196 Andersen Power Pole Connecter 4 hoesiegs /4 pins $200 /pr Gold Pin Moleo ConneGor$210 lot Tamipa Connector$100 lot Hi-Fleo wire 39 ea red & black 16 Gaj240 Strand$200 Daveps 30 Amp Metert81995 Micro 5oct06 Hurnesst$450 3/16 Flat Braid Soldering Batteries$080/ft Heat Shrink Tabing Baheries 25 lor450AFl 900$ 12000CR Flat Packs$150/h 3 eSOAR Flat Packs$160 / ft 4 tot OOOAR & 12000CR Stacked Packs$180 / SANYO CUT-OFF BATTERY PACKSt CELLS dCell 450mA$1950 5Cell 450mA$2300 d5OAR $35Oea 6 Cell 800 mA $2920 7 Cell 800 mA $3315 800AR $395ea 0 Cell 900 mA $2980 7 Cell 900 teA $3380 9000CR $dOSna 6 Cell l200reA 82920 7 Cell 1200059 $3315 12005CR$395eo packs edred hot packs Please specilp desired connectort ELECTRIC POWER KITS MMC USIa MK IV 68 Span Sailplane br 05 Gear$3790 MMC Electric Playboy 67 Span Old Timer tot 05 Gear$2600 Astro Challenger 73 Span Sailplane let 05 Gear$3250 EMD Electra Glide II 73 Span Sailplane tot 08$3100 EMD Themlic Traseler Sailplane 76 Span 05$3100 EMDSkp Knight 44 Span Troinerlor 00$2400 EMD Lightning 39 Span Aerehatic Spec Model 10105$2400 MMC Fast Eddie Aerobatic Sport Model tot 05$2400 AsIro 0005 37 i 05$2400 SHIPPING & HANDLING76 Page CATALOGtJE U0 $800 add$200$200 pp/tsr Closs free 0801 $2000 add$250when requested order $2001 $4000 add$320 $4001 $7000 add$375 Over $7000 odd$400HOBBY HORN CA Addressees add 6% tOe Send 15173 Moran St A] MO VISA / MC 8 & Sep Dale Box 2212 Clreck allow ep 30 days tsrWestmnster Ca 92584 check clearance COD heart charges plus $100 803-831 1 handling Cash OnlyHrs Mon-Fri 9AM 5PM September 1988 55 El Jett Kelety San Francisco CA thought youd like see what famous Clipper old looks like before covering Models 10-ft span will hauled Astro cobalt 40 Jomar speed control Wing twopiece tail removable Friendly youth shown just happened passing Jeff shooting photos nearby park Motor mount Octopussy connector array Simple charge systems Charge-Splitter Guidelines Battery cooler 4 Electric Advantages disadvan tages Easy economical entry-level Electric Elation DAVE BROWN PRODUCTS 4560 Layhigh Rd Hamilton Ohio 45013 13 738-1576 Motor exploded view 6 x 4 prop power RC Giant Scale/de Vries Continued page 141 cates hell Sopwith Triplane quarter-scale next Ive got see good friend called recently test fly newly developed Giant Scale model Hes ace pilot kind guy people call make first flights uncommon procedure amongst Scale designers/builders After maldng meticulous safety inspection new model bit apprehensive about alleron con trol installation designer chosen ose plastic pushrods although aileron its own servo werent supported through full length ground check en gine running showed proper control movement initial test flight attempted After few tries model airborne Hap pily bird easily trimmable friend test pilot made some passes over runway mandatory photo session photographers both well-qualified Giant builders fliers own right After first pass re duced airspeed thought heard some thing second pass engine running full-bore confirmed suspicions aile rons fluttering alarmingly telltale blur both wing tips noise flutter loud enough heard over roar 108 course friend test pilot honked back throttle reduce airspeed made slow sweeping pattem equally gentle straightin approach off-runway landing caused bird tumble damage relatively small assembled experts allowed flut ter resulted unsupported aileron pushrods recommended repalred wing modified provide pushrod tie-down three inches along length drastic corrective action considered adding internal dynamic balances within wing forward aileron spar Rather make both modifications former suggestion increased pushrod support adopted inner plastic rod twopiece pushrods changed less temperature sensitive flexible cable Another day another test flight later bird performed perfectly evidence flutter gone model beauty control alr couple lessons can gained ex perience First test flight new model de sign just thata test pilot must pre pared unexpected qualified meet Second safe flight RC model alrplane con trol surfaces must function air Surface flut ter can render model uncontrollable can cause model disintegrate air Its aggravated high airspeeds strikes slow bird down land immediately proficient test pilots its darn good idea qualified observer two hand initial test flights Unencumbered flying bird observations can abso lutely invaluableas case friends first flight does month Back atcha next month RC Electrics/Kopski Continued page 55 Motor installation Battery installation Templates cooling hole Wiring diagram airhome Prop Stop Authors 1982 flight profile Spectra-Soar flight togram Persuader flight histo gram J-3 flight histogram Playboy flight histogram Wing fuselage con struction Motor power vs model weight Spectra exploded view Charge systems schematics Charge-splitter acces sory Volt- current-meter schematics High-current shunt pic torial Twin wiring diagram DC-DC Super Charger modification 9 Meets comments/coverage Boeing Hawks SAM 76 KRC Electric Fly Intemational Canada South Shore MA Sparks Houston Daniel Boone Silent Fliers Astro Champs 1/84 1/84 1/84 2/84 2/84 3/84 3/84 3/84 3/84 3/84 4/84 6/84 11/84 5/85 6/85 7/85 12/85 4/86 6/87 9/87 10/87 11/84 6/85 7/86 7/87 1/85 7/85 8/85 11/85 12/85 7/86 6/87 11/84 1/85 6/85 1/86 7/86 1/87 6/87 1/88 4/88 5/88 6/85 6/85 12/85 7/86 5/87 6/85 4/86 5/87 8/85 2/86 7/86 10/86 8/85 MAC Huntsville 86 F3E meet Suggestions Largest County Soaring Eagles EMF/Chicago CASA Urion Lake Eastem Free Flight Conference Harbor Soaring Society Midwest Electric Fly WES2 Lehigh Valley First An nual Winston-Salem 10 Miscellaneous Reader mail Series review over sights Things Id like sec Flight logbook Stopwatch transmitter mount AlA Electric series er rata Twins Cold-weather flying Robbe Electric supplies EAA Newsletters Flight records High-current meter Dwight Holley Personal statements Electric Flier Patch Graupner Electric prod ucts ii Motors work Mounts mount assembly Venting Brashes commutators Break-in Bearings Prop adaptors Features Size Testing Power input/output Efficiency Flux rings Comparison Speed reducers belt gear Hot-wind Large Controls/speed controls 9/85 3/86 5/86 5/86 7/86 12/86 7/87 7/86 9/87 10/86 6/87 6/87 7/87 7/87 6/88 7/88 7/88 8/88 6/84 6/85 5/87 6/84 6/84 8/84 8/84 8/84 2/85 6/87 7/87 2/85 2/87 3/87 2/85 12/85 4/87 4/88 3/86 12/86 6/87 5/86 5/86 2/87 3/87 6/87 7/88 9/87 12/87 8/83 5/87 8/83 7/84 11/84 2/87 5/87 7/87 8/87 10/87 8/88 8/83 4/85 8/83 4/85 8/83 8/83 8/83 4/85 8/83 4/85 8/83 4/87 6/87 7/87 4/88 8/83 4/85 4/87 6/87 7/88 8/88 8/83 8/83 8/83 8/83 4/85 11/83 5/84 3/87 3/88 6/88 5/87 8/87 8/88 2/85 4/85 3/86 4/88 5/88 7/88 2/84 6/85 2/86 2/87 7/88 144 Model Aviation OH Scai -Extra 230 Kits Now Available Three Sizes 30% Scale Kit plus 815 shipping 1/3 Scale Kit plus 815 shipping 1/4 Scale Kit ~ plus 810 shipping Cash VISA Certified Check R/C EXTRAS 712-943-4102 RR1 Box 28B Sergeant Bluff IA 51054 12 Photos September 1983 Euphoria 11 aerobatic Motor bat tery etc assortment Whisper V Glider 3-3 Sport Scale Spectra-Soar/Sport/Stunt Buzzard Bombshell OT replica Strato Streak OT replica Mattel Super Star Persuader 05 acrobatic October 1983 Astro 10 Leisure 05 motors Disassem bled motors Cobalt 05 installation Props prop adap tors Motor mounts detailed Batteries assorted Charg ers Field boxes Connectors Blowers coolers January 1984 05 installation 15 belt-drive installa tion Battery cooling air vents Playboy radio installa tion Playboy motor mount Persuader aerobatic radio installation Battery installations February 1984 Switches Fuses Connectors Resis tors speed control Connectors crimp Switch installa tions Radio installations March 1984 i- flight Playboy cabin Spectra Per suader aerobatic April 1984 Motor battery radioweight Tape hinges May 1984 KRC Electric Fly scenes June 1984 Astro Porterfield Gentle Lady Olympic II Olympic 650 July 1984 Sleek motor mount assembly August 1984 Wanderer 99 Transmitter stopwatch mount September 1984 Five varied Electrics Solar-powered Electric October 1984 Ginnt Electricframework American Eaglet semiscale Eurekalarge sport Electric Wasp aerobatic January 1985 Spectra motor/battery combos Battery pack assembly Cobalt 15 mounting Spectra February 1985 Comet kitsport Electric Leisure ar matures Lightweight rudder/elevator mixer March 1985 Auto battery connections Multimeters assorted Connector arrayOctopussy April 1985 Motorslarge May/June 1985 Chargeradvanced construction July 1985 Charge-splitter construction Charge con nectors airborne August 1985 Astro Champs September 1985 PusherGlider Blanchards B-24 SPARKS Houston meet October 1985 Charger maintenance Exciter 40 aero batic December 1985 SAM 76 85 meet Hobby shop Klensm L25d China Clipper Playboy/lithium battery January 1986 1985 KRC Electric Flymany photos February 1986 Adams speed control Orga nizer' Motor noise-suppression capacitors Daniel Boone meet March 1986 Multimeter recommended Grandpa bipe Ellis Grumer Spectrastylized April 1986 Homemade high-current meter shunt May 1986 Exciter 40-size installation Advanced charger Piper Tripacer June 1986 Citabria SparkFire25 aerobatic Sparky July 1986 Hair-dryer blower parts Meter/leads/parts cases August 1986 Economy Electric system Wiring har nesses Electric installation September 1986 Pronto Mountjoy Auto battery con nections Playboy Ewing October 1986 mans huge fleet Evanson Cut awacka Blanchard Large spring clips Sermos connec tors DC-DC Super Charger December 1986 Armatures straight skewed slots Bluebird 15 Grumer Leisure Lanzo Bomber Py Ion Playboy SAM meet January 1987 86 KRC Electric Fly photos February 1987 Astro Viking installation Lanzo Bomber installation Astro cobalt new take-apart design DSC high-current meter March 1987 Dwight Holley Prop slots April 1987 Unbelievable motor Ni-Cd cells sizes OSs etc sizes motors May 1987 Lanzo Bomber installation Astro Viking installation So Long OT Taylor Pod-mounted motors June 1987 Astro 10 original Gollaher Esquire Myers Powerhouse Mountjoy July/August 1987 Caliph installation detail September 1987 Arming switch Fuses & holders Electric Flier patch DC-DC Super Charger modifica tions October 1987 Caliph construction detail December 1987 Leisure Amptique installation de tail Various connectors January 1988 1987 KRC Electric Fly photos February 1988 Zlin 526 Shaw Amptique Wilson Amptique tail wheel Ampeater bipe Kopski Jomar speed controls March 1988 Astro 02/035 gear drive Old/new As tro cobalt brushes K&W folding props Fuse connec tions make April 1988 Ford Flivver True Mystery Electric P 38 Wetzel Waco Taperwing Shaw May 1988 Mystery Electric Amptique 15 installa tion 3-3 Spagnuolo Fenstermacher Leisure Lanzo Bomber Chaplick Amptique Kraynak June 1988 Mystery Electric Ewing Eindecker Da vey Astro cobalt 60 installations Swizzle Stik Griggs July 1988 Goldberg Electra Schmitt Robbe Geier Rumsey Robin Wood Glider Walpole Jersey Goose sport Grumer August 1988 Ferrite 05 Astro gear drive mount Challenger Kopskl Tronics 13 Propellers Sizes Effects pitch power Prop stops Folders Prop slots 14 Radio Choosing Electric Installation Motor noise Range Glitching Power 15 Rules competition Discussion proposals etc 16 Rules thumb Power needed fly Power ROG Power system weight Wing weight Weight importance Kits An application example 17 Switches Toggle Miemawitches Three-position Size Life Master arming Electronic 18 Tables Effects propeller size Plane power system weights Spectra Soar statistics Persuader statistics 3-3 statistics Playboy statistics Wing structures Fuselage structures Recommended motor operation Motor power/model weights Battery performance old/new Spectra Soar flight time Large motor perform ance Motor mounts JTec Sonic11/83 1/83 5/85 8/88 2/84 11/84 9/86 3/87 3/88 6/88 8/88 3/87 1/84 1/84 11/84 6/85 2/86 8/87 6/85 6/85 9/87 9/87 11/84 1/85 2/85 3/85 8/85 6/86 9/86 10/86 12/86 6/87 4/88 8/88 4/84 4/84 4/84 4/84 4/84 4/84 10/84 2/84 2/84 1/85 8/87 2/84 2/84 2/84 6/88 2/84 9/87 6/88 9/87 11/83 4/85 1/84 3/84 3/84 3/84 3/84 4/84 4/84 5/84 6/84 9/84 1/85 4/85 September 1988 145 L OPS 18 engine quarter scale Contact us free engine test results SThe CmAe~eR% 9m6o4 9i0 Power ranges7/85 Capacitors2/86 Feel12/86 New motors/im-12/86 2/87 3/88 proved motors Unbelievable4/87 7/87 Car motors6/87 Keller motor nomencla-7/87 10/87 ture Power supply6/87 Leisure2/88 Recommended charge current Article index Ni-Cd cell weights DC-DC Super Charger mod parts list Connector wire resis tance Leisure 05 perform ance Caliph power systems Astm 15 props/power Geared Astro 05 15 props/power Popular equipment 85 Electric Fly 19 Weight Importance Plane/power system Radio servo receiver battery Covering Framework examples 20 Wfring Size/kind/loss/weight Soldering Connectors Auto model chargers Organizer Twins 6/85 9/85 4/87 9/87 12/87 2/88 2/88 7/88 8/88 3/86 1/84 4/84 8/87 1/84 1/84 4/84 10/84 11/84 2/84 10/87 12/87 2/84 2/84 3/85 7/85 2/86 6/87 So ends another columnalbeit somewhat unus ual hope find useful doing couldnt help think useful master index Electric articles magazines last 15 years would Would ever killer project Next month back normal column format Please forward comment question SASE please photo ad dress given very top column Thanks five years fun everyone RC Helicopters/Jolly Continued page 56 side frames tail tube gyro mount engine mount bearing mounts made fa miliar friend aluminum However landing gear tail rotor housing washout assembly blade grips blade mounts tail rotor mounts bellcranks yoke main reduction gear tail rotor blades molded fiber-filled plastic rest X-Cell made accepted materials Included smoked Lexan canopy all-metal inline swashplate metal clutch steel starting shaft both main tail rotor shafts centerless ground hardened steel As layout X-Cell conventional two side frames trapping engine mounts bearing mounts tail tube engine mounted vertically glow plug pointing aft starting shaft positioned forward main rotor shaft main reduction gear nylon has tail-rotor-drive takeoff track molded side covered least mistake 60-size X-Cell has ball bearings something rotates would expect control system virtually slop-free featur ing four-point attachment swashplate Col lective pitch activated via mixer roll servo output arm Using method 200 col lective pitch travel possible fore-and-aft cyclic pitch elevator servo mounted unique position just aft main rotor shaft its pushrod both straight short As matter fact pushrods straight runs course adds precise response al ready tight controls As far physical statistics go X-Cell 60 has overall length 53 height 16 main rotor diameter 57 engine-torotor reduction gear ratio 91 feature unique X-Cell use delta hinge tail rotor Theoretically reduces effect side gusts machine cant tell difference tell truth feature interesting Making use stock flybar weights adjust able head dampening wide collective range produces very adaptable machine can made respond needs wide range fliers novices all-out aerobatic perform ers looking X-Cell should get accessories designed adaptable other machines First would Rotor-Sport blades have proven give great performance well made ex hibit good characteristics during aerobatics cluding autorotations have commend Miniature Aircraft its use sticky-back vinyl blade covering excellent choice nd will lift off use Also available Magna pipes ex haust system allows smooth power keeps mass Helicopters longitudinal centerof-gravity As mentioned earlier instruction manual excellent Following letter will yield very easily built smooth-flying aerobatic per former After flying X-Cell have say few machines will match its flight performance probably best-rolling Helicop ter available today Just before mailed off months colusim magazines editorial office Ted Schoonard kindly sent photos some accessories X-Cell noteworthy Quick Silver version basically three-piece lightweight fiberglass molding turns stock X-Cell full-bodied FM-style machine addition 10 oz all-up weight mechanics have modified ac cept fuselage Merely remove canopy tail rotor housing install two fuselage halves over mechanics Theres real good thinking total adjustments can made removing mechanics shell will report other updates later column am now getting close running out space summary would like state X-Cell combination quality parts sound cur rent Helicopter design thinking brought together great kit yielding Helicopter great performance Because Schoonards strong interest improving products expect will see still excellent products coming years now personal note Wait Schoonard has very ill during first part 1988 behalf fraternity RC Helicopter enthusi asts congratulate Walt X-Cell wish speedy recovery can get back Helicopters love much BCNU RC Pylon Racing/Hager Continued page 57 brush cleaning place paper towel Spray fine mist WD4O other com parable lubricant parts Inspect interior crankcase flash sharp edges around ports machined areas spect carefully presence foreign materi al Using #11 X-Acto blade gently clean rough and/or sharp edges Inspect area sleeve goes case high spots rough edges detected wrap piece #400or #600-grit wet/dry sandpaper around fin ger dowel spray some WD4O sandpa per gently rotate sandpaper bore area Inspect rear crankcase cover appears crankshaft hitting cover some places polish rear covers face portion faces crankshaft things assem 146 Model Aviation I I II U UHuA Send $1 tO toupon lsrwithysurssme andsddresallsADDRESS MlcroMark 340-569Snyder Ave flvkeIeYHIhta NJ O722CITYSTATEZIP3