Electric Connection Service ECS activ ity month includes three modelers would like find others locales share fun Electric always brings Paul Combs 4880 Glenbrook DrBoise ID 83704 Tel [208] 376-6119 has flying mostly seven-cell having great time tone letter think hell eventually move larger power systems definite trend Electric about 50% Astros current sales sizes 15 above Bill Mecca 912 Center St Throop PA 185 12 wrote nice letter commenting cant think friendlier group DOD I1I JUIUIdI1OU IIIULUr mounting methodnow very popular Lengths yellow inner rod Sullivan pushrod product red blue outer size form U-straps hold motors tightly V block resting glued 118-in ply floor model 2-56 screws draw straps tight 1/16-in foam tape V rest cushion motor Hold-down screws accessible bottom mount IR ADHO CONTROL individuals involved aeromodeling agree Bill think its especially true Electric aeromodeling Anyway Bill group northwestern Pennsylvania ELECTRICS s future radio control flying rests growth acceptance Electric-powered flight Right again Bill Okay folks its up now join forces Bill et al make Left A Great Planes Thrustmaster motor installed brass-strap approach Motor nests wooden V-cradle Clamp strap screws draw motor down tight Kopski recommends use two such straps smallest motors method differs Gold-N-Rod method screws accessed motor side may permit neater installation I 86 Model Aviation e Commercial motor mounting bracket Stitzer Model Design Two mount sizes available Mounts supplied tie wraps shown Kopski prefers using Gold-N-Rod ties draw screws Right Modified Gold-N-Rod scheme Bob Afflerback holds large Astro cobalt standard aluminum wet engine mount beams filed slightly fit motor housing better Braided wire soldered threaded couplers slipped through sections Gold-N-Rod hold-downs drawn tight nuts lock washers Afflerback photo Below Pieces needed Bob Kopskis latest motor mounting method K&S brass strip square section tubing normal hobby shop items Pull-down screws 2-56 hex head Iwu 1uI ai 1 ~ mNVvi ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 46 30 gALU STICKS 3648 1116x2331/16x1/410 3/32x2401/16x3/811 1/8x2431/161/216 3/16x2493/32x1/412 1/4x2563/32x3/813 1/32x3373/32x1/217 1/20x3371/8x1/809 1/16x3 37 49 31 1/Bx1/412 3/32x34458 37118x3/813 1/8x35574 AS1/8x1/218 3/16x36384 553/16x3/1612 1/4x37598 613/16x3/818 5/16x387115 16x 2 3/8x390128 711/41/418 1/2x3114160 4x 8 3/4x3170200 4x 2 1/16x45876 481/4x3/434 3/3247297 561/4x142 1/8x482109 565/16x5/1623 3/16496126 753/8x3/829 1/4x4115139 843/8x1/233 3/8x4170235 1443/8x3/444 1/2x4235273 2003/8x154 MATCHEDSHEETS42 1/2x 1/2 38 3/32x41091/2x3/448 1/8 x41291/2x160 3/16x41445/85/852 1/4 x41553/4x 3/4 75 BALSA HOT LINE Cull COC 745 6394 10. 6pm Cntngl Time Up ALSA TRIANGLES 36 141425 383630 121235 34 3445 1~55 BALSA PLANKS36 1,190 1,2157 143219 144293 11/243302 11/244395 22231 243335 244475 343515 344715 TAPERED SHEETS36 1/4266 14386 382 68 3/84398 23120 LIGRT 4-6 LB WOOD 36 1/32378 1/2078 1/1678 3/3293 1/8114 3/16132 1/4157 3/8188 1/2238 3/4375 1532 1/16x4123 3/32149 1/8169 3/16197 1/4237 3/8357 1/2482 18 19 24 19 21 31 26 28 32 45 57 30 39 49 56 73 55 66 82 70 98 LONESTAR EPOXY INSTANTGLUE 9 02 List 1009 1 oz Thick 300 5 Mm6691 oz Thin300 15 Mm6692oz Thick556 30Mm8692ozThin550 TRAILING EDGE 36 1/4132 5/1611/438 361 1/246 1/22711 must try 4-6 lb balsa SASSWOOD48 3/163/16 /161/4 /163/8 /161/246 3/163/460 1/4 1/4 42 1/43/649 1/43/480 3/83/860 3/81/270 3/83/496 1/21/290 123/4100 BUNDLE DEALS 20-1/1 6x3x36609 20-1/1 6x4x361035 20-3/32x3x36875 1 5-3/32x4x36999 15-1/5x3x36775 1o-1/8x4x36775 15-3/16x3x36940 10-3/16x4x36899 10-1/4336699 1O-1/4x4s361090 1 0-3/8x3x36890 5-3/8x4x36655 5-1 /2x3x36540 5-1/2x4x361110 O-/32x4x48930 5-1/8x4x48525 53/16x4x48620 51/444448680 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 1/81/81725 1/8142026 1/93/82232 3/163/162838 1/4143450 1/43/84055 1/41/24565 3/63/84969 3/841/26077 1/241/26688 1/2 43/47587 SPRUCE TRIANGLES 36 3/83/847 1/21/264 3/443/481 LITEPLV48 HARD MAPLE 14 38 3/83/8 3/6 12 3/8 34 1 34 IS 40 45 50 56 68 BIRCH DOWELS 36 1/812 311617 1/419 5/1625 3/832 3 PLY BIRCH 48 1/64x12835 1/32x12550 1/1612550 1/8x12495 SPLYBIRCH48 3/32x12725 1/8x12825 3/1612625 1/4x12650 3/8x12750 1/2x12900 GROOVED LG MOUNTS l2MeMa 1/861713/8x3/4115145 1/8x123503/8x3/415/3245 1/4x6275 1/4x125501/2x3/413/16150 LONE STAR MODELS 1623 57th St Lubbock TX 79412 Cont 48 States Handling Charge pay UPS Add $400 COD $500 extra PP APO FPO accept VISA MC Discever personal checks 000 6/4% tax Texas US currency Mm wood order $1000 06Tern Thirteen-year-old Chris Steel Lansdale Pennsylvania proudly holds Airtronics Eclipse KRC 92 fully equipped custom-built raffle prizes Chris first chance sticks few weeks after meet sure looked author Bob Kopski hes gonna make fine pilot Kopski lucky instructor day says plane great flier too Merle Miller 2136W Oakland Ave Hemet CA 92545 picked up some Vintage comments earlier column addition requesting ECS listing advised has some newin-the-box vintage escapements etc plans can sell Regular readers know appreciate electrified vintage planes cant help wonder someday might have official events Joe Utasi Jomar doing what hes famous forhelping modelers annual KRC meet Joe comes year sets up shop help out can flies between Hes known fix up some speed controls made competitors sorta like SAM Electric eventsfor competitive inclination course Way back September 1992 column offered some thoughts about heavy Continued page 159 Paul Hoisten plant manager Ace R/C having great time KRC 92 hes getting big charge out Kopskis Galloping Ghost-equipped vintage Esquireguided Micropro transmitter plus models on-board re encoder circuit Latter uses contemporary radio drives classic Mighty Midget motor/actuator nostalgic bang-bang manner Seeing believing Paul says Ace will back next years Electric Fly April 1993 87 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance wind might well dry other hand youre little aggressive figure would drift downwind thermal fortunate enough stumble youd wise carry some ballast youre type plans put nose down really search need carry enough ballast get moving significantly faster wind speed plane handles weight differently need experiment find out yours will react plane light side experiment adding small amount lead very light wind conditions will make fly little faster will also help keep track get hit wind gusts landing approach course stronger wind faster airspeed need faster need fly ballast add Eventually will reach point planes glide ratio deteriorates noticeably Ballasting beyond point usually fruitless Draggy floater types will reach point lower wing loading slicker highperformance ships Once determine point youll know complete window loadings available know keep beating around bush want real numbers want know exactly what wing loadings will work Im probably going regret sake beginners probably still completely dark opinions some broad rules thumb Gentle Lady-type two-meter will probably benefit ballasting up about 9 ozIsq ft wing loading stronger two-meter faster airfoil like Sagitta 600 can go up about 12 os/sq ft big old Paragon its draggy high-lift airfoil should probably go beyond 11 os/sq ft polyhedral Sensor 117 maybe 13 os/sq ft newer breed ships such Falcon 880 Legend may benefit up 15 ozIsq ft loading Increase wing loading increments about ounce per square foot anything less will hard notice Unless build really heavy should probably consider adding ballast winds above 8 mph hope Ive convinced try little weight Now need figure out put Ballast usually form lead needs secured directly over centerof-gravity Anywhere else means changing trim CG plane well adding weight enough ingenious ways mounting ballast fill another article Just make sure cant shift fall out during launching hard landings Note safety AMA rules state ballast must carried inside plane Thanks sharing knowledge Bob think beauties soaring hobby notion always something leam.always something new try. always plenty scope improve ones flying keep trying improve glider flying never gets boring As making ballast pieces please remember decide melt lead like readily available automobile wheel weights cast special shapes molten lead fumes toxic Lead melting should done outdoors very well-ventilated area Bob included personal note let us know what hes up latest building project Flite Lite Composites Thermal Eagle Mine first after Ron Vann took over company can vouch first class kit quality fact kits complete now Mark Allen sorry Mark started presheeted wing kit way go opinion know couldnt sheet wings light Thermal Eagle will Open-class contest plane 1993 chose 5D8000 airfoil option Ive flown several sailplanes airfoil option really love lightly loaded plan use Airtronics 94141 servos wings Ive using planes two years now have never stripped gear dont use servo savers radio Ill use Airtronics Vision 8SP course its still ultimate full-house soaring lectricslKopski Continued page 87 reputation Electric has Also respect Electric conversion wet designs noted contemporary wet kits generally impress being overbuiltie lumberyardsoften having too much too heavy wood makes models heavy begin emphasized important feel build both strong lightno matter what fly above background can understand sorta chuckied read Jim Oddinos Airplane Stuff column November 1992 issue RCM Among other good things piece Jim observes Pattern fliers have finally figured out weight enemy flight trying build bigger airplanes build lighter Nuff said same RCM issue has articles will interest Electric other modelers construction article written Joe Utasi alight-duty optically isolated electronic switch Joe known E modeling community reputable supplier fine speed controls company name Jomar Joe himself great time 92 KRC meet also won four fully assembled equipped test-flown raffle Electricsa Viking OT Continued page 162 INTRO PRICE$16000 ALL KITS FEATURE HAND LAID FIBERGLASS FUSELAGEPANEL UNES SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULKHEADS SEE YOUR LOCAL DEALER OR CALL HOBBY HANGAR 606-283-5746 FOR IMMEDIATR DEUVERY DEALER INQUIRIES WELCOME WEACCEPT VISA MASIERCARD & DISCOVER CARDS WEGLADLYSHIP C OD SHIPPING & HAND UNG $500 PER KIT COIIIINENTAL USA 071152 AREAS CALL KENTTJCKYRESIDENES ADD 6% SALES TAX HOBBY HANGAR ISA FULL SERVICE HOBBY SHOP WITH OVER 11000 ITEMS IN STOCI CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HANGAR EXLSIVED/STRWTOR FIBER SCALE MODELS 153 LLOYD AVE FLEM KY 41042 6e6-283-5746 P*YE 606-253-5889 FAX April 1993 159 FOCKE WULF 190 Made USA SPECIFICATIONS WINGSPAN 65 ENGINE SIZE609 2-SIROKE 9iI 20 4-SThOKE WEIGHT9-10 LBS t1R5 00 ThJ7Pa PPICC P47 THUNDERBOLT Made isz USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT8-ES LBS Made USA CESSNA 150 SPECIFICATIONS WINGSPAN 6 ENGINE SIZE4560 2-S7ROKE WEIGHT7-75 LBS cun nn P40 WARHAWK Made USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT7-8 LBS SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AVArTARI V IwrnVrnTIAI iv OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITF SPARK PLUGS SILK 8 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASThRCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS N Koosh-In-It Koosh-In-It tough flex ible rubber/fabric laminate softens vibration between engine fuselage Cuts easily scissors insta n mnufes Sheets 2 x 4 x 1/16 thick Money back f complete y sat st ed Send check money o der $490 pIus 90 P&H $580toBalsadust PO Box78 NewYo k NY 002 212 737-0071 Fax 212 737 0072 FREE Ordernowand ece ye sam Aura pie issue Balsadust Quart efly first magazine exciusiveyfo B/C entertainment --a $400 va ueanQ71 1 RC Electrics/Kopski Continued page None Next regular RCM columnist Chuck Cunningham discusses Vintage flying scaled-down wet-powered Rudder Bug using Cox Fail Safe rudder-only radio radio operating old 27 mHz band becoming popular E-fliers small rudder-only Electrics fact Ive just recent ly purchased such application know used SEFLI group Long Island Anyway Chuck comments flying CB band now seems possible againwith safety has experience well having recently flying Electrified Wave Hitec Shredder pictured January 1993 column Also several Cox radios used recent KRC meet several folks flew 27 mHz band other radio equipment 92 Labor Day Vintage Reunion Selinsgrove Pennsylva alaall no known interference prob lems Think about course RCM issue offers Silent Power column written friend Ted Davey DSC fame mention last cause really needs no mention butjust caseI want Ted remain friend Several columns recent past have included discussions computers modeling general E-modeling particular few examples add growing list First something especially forE-fliers Ken Myers Walled Lake Michigan active E-flier editor Ampeer newsletter Electric Flyers Only Inc club Ken has developed computer program designed evaluate motor/battery/plane configurations can get copy own use sending Ken $750 can supply program Apple II format MS DOS either 35-in 525-in disks order MS-DOS version also need let Ken know version BASIC running Ive playing program having lot fun Incidentally EFO has about 30 active members mails out about 160 newsletters month because great newsletter demand can subscribe Ampeer $10 year $17 outside USalso writing Ken com plete address 1911 Bradshaw Ct Walled Lake MI 48390 Dont forget tell Ken Bob sent ya Another program interest modelers presented December issue RCM Create Computerized Magazine Article Index authors Dave Garwood Jim Harrigan present program keep track magazine articlessomething wish available last 40 years program called MAG-TRACK written BASIC designed allow search infor mation author title subject can manually copy listing given article buy disk IBM-PC/compatible machines $5 $7 525-in 35-in disks respectively sounds good just sent Jim Harrigan 103 Highland Ave Rensselaer NY 12144-1006 Finally Ive playing two model ing programs C&J Microsystems called WingDesigner EditFoil As titles suggest can design everything except fuselage newest Electric wetyuk design wing-design program will allow print plot working drawings upon build almost kind wing outline including tapered swept planforms Also can plot rib outlines including spar notches etc Dont worry intended design large wont fit printer paper program allows print multiple spans fractional chords can taped together Also can save design disk have professionally plotted commercial printer Okay folks need now fuselage design programand computer-controlled robotized android builder could also pressed mow lawns between crashes Some photos month detail several motor mounting methods First up new product Stitzer Model Designthe Aero-Vee mount formed-aluminum mount available two sizes up 15-size motors other up 40-size motors designed mounting against firewall former motor held mount draw straps made tie-wraps yellow inner rods Gold-N-Rods similar productsthe same technique introduced column several years ago modeler behind design Sam Stitzer regular KRC Electric Fly attendee years can write Sam Stitzer Model Design 113 William St Centre Hall PA 16828 Having just referenced own Gold-NRod technique see MA July 87 variation photo illustrates reinforced version designed friend Bob Afflerback uses braided metal cable threaded couplers soldered ends real ly put bite large motor installations Bob rests motor beams allmetal wet power plant mount shown beams first modified slightly inside taper better match shape round motor housingeasily done file threaded ends cable pass through holes beams tightened nuts lock washers bottom beams Note pieces Gold-N-Rod inners slipped over cable top motor done before threaded ends soldered think approach would hold automobile starter Incidentally Bob Beth Afflerback n kids have also regular attendees KRC meet years past Bob has written several articles columns Flying Models might want look feature coverage 92 KRC meet early 93 issue Model Builder magazine 162 Model Aviation REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE Finally Ive also trying new motor mounting variation approach useful possible desirable use draw screws pull down GoldN-Rod straps Such might case simply dont want exposed hardware bottom sleek new fuselage So far Ive used technique great success both 50-watt Hi Line 50 100-watt Great Planes Thrustmaster motors see no reason could applied much higher power installations intend just upcoming months Fabricating assembling new mount relatively easy still based ply baseplate usually /s-in thick made part model structure wooden V motor rest block fit between motor Whats basically new hardware As shown photos make motor draw straps -in-wide 0016-in K&S brass strip material readily available hobby shops end strap necked down just under /s-in wide length about /o Ive found easy nibbling tool two narrowed ends bent back formed main strap pictured short length about 1/2 /8-in inside square K&S brass tube slipped over J-formed strap ends Finally 2-56 draw screw small washer under head dropped through square tubing top side shown Thus bent-back strap end captured between inside side wall square tube screw Whats important tube must slightly longer bent-back strap ends screw washer bears down tube end strap end tube turn bears down latter bottom J motor nested suitably sized wooden V-block preformed U-shaped brass straps dropped over motor draw screws turned 2-56 blind mounting nuts installed baseplate bottom Incidentally finished wooden V motor rest should have pieces A6 x /2-in single-sided foam tape sloped sides better nest round motor housing add some friction latter Adhere sticky wood motor course formed brass strap length must such very ends J ends touch base mounting plate preclude proper tightening draw straps against motor Also advisable make V-block no wider outside diameter motor locate blind nuts baseplate spaced straps snug against V-block outer edgesie straps come straight down motor above Finally prefer use socket-head screws hex driver tighten screws easily Let know works out past readers wrote tell well Gold-N-Rod approach worked Ive seen such installations show up KRC over years Maybe variant will also catch Speed controls regular readers know have occupied much space within column part because own intense personal interest associated problems can occur Also over years Ive opportunity examine use brands though well design build own controls scratch As result extensive experience both bench air both important Ive compiled own criteria speed control selection since get letters subject thought would make good column topic Firstexcept noted belowany speed control use must optically coupled Simply put refuse use anything less see absolutely no reason set myself up potential radio interference problems glitching can easily occur hardwired controls-especially larger power systems Yes like some too have some nonisolated installations past worked pretty good time Now however feel less-than-the-best performance simply no longer necessary acceptable given proliferation good optically coupled designs Almost manufacturers now offer optical coupling way gowith some product exceptions may include specialty controls low-cell-count low-power systems Next application exception speed controls personal use must high-rate design Again given proliferation good speed controls market no longer reason accept relative inefficiency frame-rate designs case might use frame-rate design on-off switch ie in-between speeds application good use old speed controls cant bring myself throw away some modelers however tough decision may remain lone frame-rate tough choice know Futaba Electric receiver/speed control combination six- seven-cell power systems product works very well overall Ive seen flown Because BEC design simple lightweight installation minimum wiring possible receiver uses motor battery source power separate radio battery needed have use myself admire product often recommend beginning E-modelers reasons given above Nowif Futaba would upgrade high-rate design Futaba would upgrade more-than-seven-cell design Hint also look subtle characteristics speed control example prefer use control permits momentary motor burst either receiver arming switch turned off Also PRECISION MODEL PRODUCTS zZI4jas Made uSA t. BARSTOCK ALUMINUM SPINNERS RetailApprox Part No SizePriceWeight fl150B .. 1112 $1495 58 fl175B 14 5 95 oz TT-200B 1895 00 oz TT225B .. 21/4 5 80 oz TT226B .. 21/4 FAt . 2195 50 oz TT250-B /2 5 90 oz TT251B . 2112FAt 395 70 0z fl275B 14 5 20 oz TT276B .. 23/4 IFAtI 895 00 oz T1300B 3095 80 oz TT301B FAt 50 oz tT325B .. 3114 5 40 07 TT350B .. 3112 5 70 fl375B .. 33/4 5 20 fl400B 7995 70 07 3 Pieces Cone Back Ptate Retainer Screw Note 3 4 Blade Spinners Available Att Sizes Add $300 Per Spinner RetailApprox Part No SizePriceWeight TT140A .. 1/428 . $595 . 061or TT147A 428/7mm595061or TT610A .. 6 x 10mm 595 07 TT710A .. 7 x 10mm59508207 TT-516-A .. 5/1624 59507607 1T518A .. 5/1624/8mm59507607 TT810A Ox 10mm5950 7607 TT825A Ox 125mm5950 7507 TT375-A 3/824 117or TT-125-A lOx 125mm695115or 3 Pieces Nut Washer aird Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 April 1993 163 PROP NUT ADAPTORS V prefer use controls can allow sustained comes stays motor operation absence signal such receiver transmitter offa safety consideration Additionally prefer control has slightly slowed response mean prefer speed controls instantly respond stick motion rather lag behind littlesorta like servo requires some time transit kind operation permits model fly through momentary glitch opportunities noticeable motor speed reaction Finally some speed controls have poor line rejectionas follows Whenever servo moved receiver battery voltage may also move little depending battery condition wiring loss etc Some speed controls react line motion motor speed may fluctuate often noticeable lower throttle settings can occur near full throttle poorly designed controls Next time youre considering new speed control take look whats use field apply guidelines abovealong price availability considerationsto make best choice urge choose speed control meets important criteria dont too concerned about subtle issues depending feel fly happily quietly ever after Several small items topical interest have accumulated desk over time Ive decided collect tidbits sharing now First E-fliers also active amateur radio operators Im told Electric-oriented activity 7243 kHz Friday mornings 1000 ET can join AA4L Bob W2NDY John WA4ZDK Jim discuss favorite Electric subjects Incidentally AA4L other Bob Johnson gentleman told us help reduce motor glitching toroids motor leads August91 issue RIC Report Next its becoming increasingly clear year Electric Scale growing popularitynot just sheer numbers quality models size power systems well rather dramatically demonstrated KRC 92 fact Im beginning wonder Electric scale will soon grow dominate application Electric powerreplacing gliders-only image Electrics early years Anyway years KRC Best Scale award went Steven Stratt New York stunning Sopwith Swallow Steven man contact youre interested highly documented plans pix etc scale models days long gone can supply remarkable info package entitled Fabulous Planes Plans Aerodrome $10 plus $290 first-class postage historical album/documentary kit impressive collection actual photos plans listings whats available serious Electric historic scale modeler address Aerodrome PO Box 1425 FDR Station New York NY 10150 tell Steven Bob sent ya Finally since Electric motor mounts discussed earlier column cant help get chuckle out some wet mount advertising thats evolving recent years Have noticed antivibration how-tos products have popped up What Did someone just finally realize wet engines like shake rattle roll Closely akin topic mufflers seems no shortage how-tos productsfor Im thankful Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now arent glad fly Electric no-noise no-vibration nononsense power modeldoms future So ends yet column Thank continuing support nice comments what Im trying monthit makes monthly effort worthwhile fun case youre wondering March column did appear due flyby sorts getting column together Now know letters turn column first month its absence may have noticed some being case suggested expanded-length format month folks MA guess used words like reader uprising revolt revenge violence terrorist activity bombing etc convinced OkayI am exaggerating Anyway well try hard keep future columns sound steady years past Ive got lots lots good stuff share upcoming issues often find myself cant-walt state mind get print course direct result folks letters continuing supportas above Its selffeeding folks Thank again Okay its time think upbeat live areas experience real winterthink spring time get spring too awfully far away Please sure enclose SASE correspondence youd like reply Happy Quiet Landings Everyone cale/Troy Continued page 89 Lou Oskowski Douglas A-26 Invader bomber has long aeromodeling s favorite twin-engine subjects Lou Oskowskis outstanding 10-foot rendition best Ive seen long time Its /7-scale model Gerrard retracts its powered two 164 Model Aviation PING & HANDLING UPS Ground continental us $495 UPS Air & Parcel Post $495 plus 10% Subtotal Continental US UPS Nest Day Air $1400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal U S Mail $495 plus 10% Subtotal
Edition: Model Aviation - 1993/04
Page Numbers: 86, 87, 159, 162, 163, 164
Electric Connection Service ECS activ ity month includes three modelers would like find others locales share fun Electric always brings Paul Combs 4880 Glenbrook DrBoise ID 83704 Tel [208] 376-6119 has flying mostly seven-cell having great time tone letter think hell eventually move larger power systems definite trend Electric about 50% Astros current sales sizes 15 above Bill Mecca 912 Center St Throop PA 185 12 wrote nice letter commenting cant think friendlier group DOD I1I JUIUIdI1OU IIIULUr mounting methodnow very popular Lengths yellow inner rod Sullivan pushrod product red blue outer size form U-straps hold motors tightly V block resting glued 118-in ply floor model 2-56 screws draw straps tight 1/16-in foam tape V rest cushion motor Hold-down screws accessible bottom mount IR ADHO CONTROL individuals involved aeromodeling agree Bill think its especially true Electric aeromodeling Anyway Bill group northwestern Pennsylvania ELECTRICS s future radio control flying rests growth acceptance Electric-powered flight Right again Bill Okay folks its up now join forces Bill et al make Left A Great Planes Thrustmaster motor installed brass-strap approach Motor nests wooden V-cradle Clamp strap screws draw motor down tight Kopski recommends use two such straps smallest motors method differs Gold-N-Rod method screws accessed motor side may permit neater installation I 86 Model Aviation e Commercial motor mounting bracket Stitzer Model Design Two mount sizes available Mounts supplied tie wraps shown Kopski prefers using Gold-N-Rod ties draw screws Right Modified Gold-N-Rod scheme Bob Afflerback holds large Astro cobalt standard aluminum wet engine mount beams filed slightly fit motor housing better Braided wire soldered threaded couplers slipped through sections Gold-N-Rod hold-downs drawn tight nuts lock washers Afflerback photo Below Pieces needed Bob Kopskis latest motor mounting method K&S brass strip square section tubing normal hobby shop items Pull-down screws 2-56 hex head Iwu 1uI ai 1 ~ mNVvi ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 46 30 gALU STICKS 3648 1116x2331/16x1/410 3/32x2401/16x3/811 1/8x2431/161/216 3/16x2493/32x1/412 1/4x2563/32x3/813 1/32x3373/32x1/217 1/20x3371/8x1/809 1/16x3 37 49 31 1/Bx1/412 3/32x34458 37118x3/813 1/8x35574 AS1/8x1/218 3/16x36384 553/16x3/1612 1/4x37598 613/16x3/818 5/16x387115 16x 2 3/8x390128 711/41/418 1/2x3114160 4x 8 3/4x3170200 4x 2 1/16x45876 481/4x3/434 3/3247297 561/4x142 1/8x482109 565/16x5/1623 3/16496126 753/8x3/829 1/4x4115139 843/8x1/233 3/8x4170235 1443/8x3/444 1/2x4235273 2003/8x154 MATCHEDSHEETS42 1/2x 1/2 38 3/32x41091/2x3/448 1/8 x41291/2x160 3/16x41445/85/852 1/4 x41553/4x 3/4 75 BALSA HOT LINE Cull COC 745 6394 10. 6pm Cntngl Time Up ALSA TRIANGLES 36 141425 383630 121235 34 3445 1~55 BALSA PLANKS36 1,190 1,2157 143219 144293 11/243302 11/244395 22231 243335 244475 343515 344715 TAPERED SHEETS36 1/4266 14386 382 68 3/84398 23120 LIGRT 4-6 LB WOOD 36 1/32378 1/2078 1/1678 3/3293 1/8114 3/16132 1/4157 3/8188 1/2238 3/4375 1532 1/16x4123 3/32149 1/8169 3/16197 1/4237 3/8357 1/2482 18 19 24 19 21 31 26 28 32 45 57 30 39 49 56 73 55 66 82 70 98 LONESTAR EPOXY INSTANTGLUE 9 02 List 1009 1 oz Thick 300 5 Mm6691 oz Thin300 15 Mm6692oz Thick556 30Mm8692ozThin550 TRAILING EDGE 36 1/4132 5/1611/438 361 1/246 1/22711 must try 4-6 lb balsa SASSWOOD48 3/163/16 /161/4 /163/8 /161/246 3/163/460 1/4 1/4 42 1/43/649 1/43/480 3/83/860 3/81/270 3/83/496 1/21/290 123/4100 BUNDLE DEALS 20-1/1 6x3x36609 20-1/1 6x4x361035 20-3/32x3x36875 1 5-3/32x4x36999 15-1/5x3x36775 1o-1/8x4x36775 15-3/16x3x36940 10-3/16x4x36899 10-1/4336699 1O-1/4x4s361090 1 0-3/8x3x36890 5-3/8x4x36655 5-1 /2x3x36540 5-1/2x4x361110 O-/32x4x48930 5-1/8x4x48525 53/16x4x48620 51/444448680 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 1/81/81725 1/8142026 1/93/82232 3/163/162838 1/4143450 1/43/84055 1/41/24565 3/63/84969 3/841/26077 1/241/26688 1/2 43/47587 SPRUCE TRIANGLES 36 3/83/847 1/21/264 3/443/481 LITEPLV48 HARD MAPLE 14 38 3/83/8 3/6 12 3/8 34 1 34 IS 40 45 50 56 68 BIRCH DOWELS 36 1/812 311617 1/419 5/1625 3/832 3 PLY BIRCH 48 1/64x12835 1/32x12550 1/1612550 1/8x12495 SPLYBIRCH48 3/32x12725 1/8x12825 3/1612625 1/4x12650 3/8x12750 1/2x12900 GROOVED LG MOUNTS l2MeMa 1/861713/8x3/4115145 1/8x123503/8x3/415/3245 1/4x6275 1/4x125501/2x3/413/16150 LONE STAR MODELS 1623 57th St Lubbock TX 79412 Cont 48 States Handling Charge pay UPS Add $400 COD $500 extra PP APO FPO accept VISA MC Discever personal checks 000 6/4% tax Texas US currency Mm wood order $1000 06Tern Thirteen-year-old Chris Steel Lansdale Pennsylvania proudly holds Airtronics Eclipse KRC 92 fully equipped custom-built raffle prizes Chris first chance sticks few weeks after meet sure looked author Bob Kopski hes gonna make fine pilot Kopski lucky instructor day says plane great flier too Merle Miller 2136W Oakland Ave Hemet CA 92545 picked up some Vintage comments earlier column addition requesting ECS listing advised has some newin-the-box vintage escapements etc plans can sell Regular readers know appreciate electrified vintage planes cant help wonder someday might have official events Joe Utasi Jomar doing what hes famous forhelping modelers annual KRC meet Joe comes year sets up shop help out can flies between Hes known fix up some speed controls made competitors sorta like SAM Electric eventsfor competitive inclination course Way back September 1992 column offered some thoughts about heavy Continued page 159 Paul Hoisten plant manager Ace R/C having great time KRC 92 hes getting big charge out Kopskis Galloping Ghost-equipped vintage Esquireguided Micropro transmitter plus models on-board re encoder circuit Latter uses contemporary radio drives classic Mighty Midget motor/actuator nostalgic bang-bang manner Seeing believing Paul says Ace will back next years Electric Fly April 1993 87 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance wind might well dry other hand youre little aggressive figure would drift downwind thermal fortunate enough stumble youd wise carry some ballast youre type plans put nose down really search need carry enough ballast get moving significantly faster wind speed plane handles weight differently need experiment find out yours will react plane light side experiment adding small amount lead very light wind conditions will make fly little faster will also help keep track get hit wind gusts landing approach course stronger wind faster airspeed need faster need fly ballast add Eventually will reach point planes glide ratio deteriorates noticeably Ballasting beyond point usually fruitless Draggy floater types will reach point lower wing loading slicker highperformance ships Once determine point youll know complete window loadings available know keep beating around bush want real numbers want know exactly what wing loadings will work Im probably going regret sake beginners probably still completely dark opinions some broad rules thumb Gentle Lady-type two-meter will probably benefit ballasting up about 9 ozIsq ft wing loading stronger two-meter faster airfoil like Sagitta 600 can go up about 12 os/sq ft big old Paragon its draggy high-lift airfoil should probably go beyond 11 os/sq ft polyhedral Sensor 117 maybe 13 os/sq ft newer breed ships such Falcon 880 Legend may benefit up 15 ozIsq ft loading Increase wing loading increments about ounce per square foot anything less will hard notice Unless build really heavy should probably consider adding ballast winds above 8 mph hope Ive convinced try little weight Now need figure out put Ballast usually form lead needs secured directly over centerof-gravity Anywhere else means changing trim CG plane well adding weight enough ingenious ways mounting ballast fill another article Just make sure cant shift fall out during launching hard landings Note safety AMA rules state ballast must carried inside plane Thanks sharing knowledge Bob think beauties soaring hobby notion always something leam.always something new try. always plenty scope improve ones flying keep trying improve glider flying never gets boring As making ballast pieces please remember decide melt lead like readily available automobile wheel weights cast special shapes molten lead fumes toxic Lead melting should done outdoors very well-ventilated area Bob included personal note let us know what hes up latest building project Flite Lite Composites Thermal Eagle Mine first after Ron Vann took over company can vouch first class kit quality fact kits complete now Mark Allen sorry Mark started presheeted wing kit way go opinion know couldnt sheet wings light Thermal Eagle will Open-class contest plane 1993 chose 5D8000 airfoil option Ive flown several sailplanes airfoil option really love lightly loaded plan use Airtronics 94141 servos wings Ive using planes two years now have never stripped gear dont use servo savers radio Ill use Airtronics Vision 8SP course its still ultimate full-house soaring lectricslKopski Continued page 87 reputation Electric has Also respect Electric conversion wet designs noted contemporary wet kits generally impress being overbuiltie lumberyardsoften having too much too heavy wood makes models heavy begin emphasized important feel build both strong lightno matter what fly above background can understand sorta chuckied read Jim Oddinos Airplane Stuff column November 1992 issue RCM Among other good things piece Jim observes Pattern fliers have finally figured out weight enemy flight trying build bigger airplanes build lighter Nuff said same RCM issue has articles will interest Electric other modelers construction article written Joe Utasi alight-duty optically isolated electronic switch Joe known E modeling community reputable supplier fine speed controls company name Jomar Joe himself great time 92 KRC meet also won four fully assembled equipped test-flown raffle Electricsa Viking OT Continued page 162 INTRO PRICE$16000 ALL KITS FEATURE HAND LAID FIBERGLASS FUSELAGEPANEL UNES SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULKHEADS SEE YOUR LOCAL DEALER OR CALL HOBBY HANGAR 606-283-5746 FOR IMMEDIATR DEUVERY DEALER INQUIRIES WELCOME WEACCEPT VISA MASIERCARD & DISCOVER CARDS WEGLADLYSHIP C OD SHIPPING & HAND UNG $500 PER KIT COIIIINENTAL USA 071152 AREAS CALL KENTTJCKYRESIDENES ADD 6% SALES TAX HOBBY HANGAR ISA FULL SERVICE HOBBY SHOP WITH OVER 11000 ITEMS IN STOCI CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HANGAR EXLSIVED/STRWTOR FIBER SCALE MODELS 153 LLOYD AVE FLEM KY 41042 6e6-283-5746 P*YE 606-253-5889 FAX April 1993 159 FOCKE WULF 190 Made USA SPECIFICATIONS WINGSPAN 65 ENGINE SIZE609 2-SIROKE 9iI 20 4-SThOKE WEIGHT9-10 LBS t1R5 00 ThJ7Pa PPICC P47 THUNDERBOLT Made isz USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT8-ES LBS Made USA CESSNA 150 SPECIFICATIONS WINGSPAN 6 ENGINE SIZE4560 2-S7ROKE WEIGHT7-75 LBS cun nn P40 WARHAWK Made USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT7-8 LBS SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AVArTARI V IwrnVrnTIAI iv OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITF SPARK PLUGS SILK 8 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASThRCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS N Koosh-In-It Koosh-In-It tough flex ible rubber/fabric laminate softens vibration between engine fuselage Cuts easily scissors insta n mnufes Sheets 2 x 4 x 1/16 thick Money back f complete y sat st ed Send check money o der $490 pIus 90 P&H $580toBalsadust PO Box78 NewYo k NY 002 212 737-0071 Fax 212 737 0072 FREE Ordernowand ece ye sam Aura pie issue Balsadust Quart efly first magazine exciusiveyfo B/C entertainment --a $400 va ueanQ71 1 RC Electrics/Kopski Continued page None Next regular RCM columnist Chuck Cunningham discusses Vintage flying scaled-down wet-powered Rudder Bug using Cox Fail Safe rudder-only radio radio operating old 27 mHz band becoming popular E-fliers small rudder-only Electrics fact Ive just recent ly purchased such application know used SEFLI group Long Island Anyway Chuck comments flying CB band now seems possible againwith safety has experience well having recently flying Electrified Wave Hitec Shredder pictured January 1993 column Also several Cox radios used recent KRC meet several folks flew 27 mHz band other radio equipment 92 Labor Day Vintage Reunion Selinsgrove Pennsylva alaall no known interference prob lems Think about course RCM issue offers Silent Power column written friend Ted Davey DSC fame mention last cause really needs no mention butjust caseI want Ted remain friend Several columns recent past have included discussions computers modeling general E-modeling particular few examples add growing list First something especially forE-fliers Ken Myers Walled Lake Michigan active E-flier editor Ampeer newsletter Electric Flyers Only Inc club Ken has developed computer program designed evaluate motor/battery/plane configurations can get copy own use sending Ken $750 can supply program Apple II format MS DOS either 35-in 525-in disks order MS-DOS version also need let Ken know version BASIC running Ive playing program having lot fun Incidentally EFO has about 30 active members mails out about 160 newsletters month because great newsletter demand can subscribe Ampeer $10 year $17 outside USalso writing Ken com plete address 1911 Bradshaw Ct Walled Lake MI 48390 Dont forget tell Ken Bob sent ya Another program interest modelers presented December issue RCM Create Computerized Magazine Article Index authors Dave Garwood Jim Harrigan present program keep track magazine articlessomething wish available last 40 years program called MAG-TRACK written BASIC designed allow search infor mation author title subject can manually copy listing given article buy disk IBM-PC/compatible machines $5 $7 525-in 35-in disks respectively sounds good just sent Jim Harrigan 103 Highland Ave Rensselaer NY 12144-1006 Finally Ive playing two model ing programs C&J Microsystems called WingDesigner EditFoil As titles suggest can design everything except fuselage newest Electric wetyuk design wing-design program will allow print plot working drawings upon build almost kind wing outline including tapered swept planforms Also can plot rib outlines including spar notches etc Dont worry intended design large wont fit printer paper program allows print multiple spans fractional chords can taped together Also can save design disk have professionally plotted commercial printer Okay folks need now fuselage design programand computer-controlled robotized android builder could also pressed mow lawns between crashes Some photos month detail several motor mounting methods First up new product Stitzer Model Designthe Aero-Vee mount formed-aluminum mount available two sizes up 15-size motors other up 40-size motors designed mounting against firewall former motor held mount draw straps made tie-wraps yellow inner rods Gold-N-Rods similar productsthe same technique introduced column several years ago modeler behind design Sam Stitzer regular KRC Electric Fly attendee years can write Sam Stitzer Model Design 113 William St Centre Hall PA 16828 Having just referenced own Gold-NRod technique see MA July 87 variation photo illustrates reinforced version designed friend Bob Afflerback uses braided metal cable threaded couplers soldered ends real ly put bite large motor installations Bob rests motor beams allmetal wet power plant mount shown beams first modified slightly inside taper better match shape round motor housingeasily done file threaded ends cable pass through holes beams tightened nuts lock washers bottom beams Note pieces Gold-N-Rod inners slipped over cable top motor done before threaded ends soldered think approach would hold automobile starter Incidentally Bob Beth Afflerback n kids have also regular attendees KRC meet years past Bob has written several articles columns Flying Models might want look feature coverage 92 KRC meet early 93 issue Model Builder magazine 162 Model Aviation REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE Finally Ive also trying new motor mounting variation approach useful possible desirable use draw screws pull down GoldN-Rod straps Such might case simply dont want exposed hardware bottom sleek new fuselage So far Ive used technique great success both 50-watt Hi Line 50 100-watt Great Planes Thrustmaster motors see no reason could applied much higher power installations intend just upcoming months Fabricating assembling new mount relatively easy still based ply baseplate usually /s-in thick made part model structure wooden V motor rest block fit between motor Whats basically new hardware As shown photos make motor draw straps -in-wide 0016-in K&S brass strip material readily available hobby shops end strap necked down just under /s-in wide length about /o Ive found easy nibbling tool two narrowed ends bent back formed main strap pictured short length about 1/2 /8-in inside square K&S brass tube slipped over J-formed strap ends Finally 2-56 draw screw small washer under head dropped through square tubing top side shown Thus bent-back strap end captured between inside side wall square tube screw Whats important tube must slightly longer bent-back strap ends screw washer bears down tube end strap end tube turn bears down latter bottom J motor nested suitably sized wooden V-block preformed U-shaped brass straps dropped over motor draw screws turned 2-56 blind mounting nuts installed baseplate bottom Incidentally finished wooden V motor rest should have pieces A6 x /2-in single-sided foam tape sloped sides better nest round motor housing add some friction latter Adhere sticky wood motor course formed brass strap length must such very ends J ends touch base mounting plate preclude proper tightening draw straps against motor Also advisable make V-block no wider outside diameter motor locate blind nuts baseplate spaced straps snug against V-block outer edgesie straps come straight down motor above Finally prefer use socket-head screws hex driver tighten screws easily Let know works out past readers wrote tell well Gold-N-Rod approach worked Ive seen such installations show up KRC over years Maybe variant will also catch Speed controls regular readers know have occupied much space within column part because own intense personal interest associated problems can occur Also over years Ive opportunity examine use brands though well design build own controls scratch As result extensive experience both bench air both important Ive compiled own criteria speed control selection since get letters subject thought would make good column topic Firstexcept noted belowany speed control use must optically coupled Simply put refuse use anything less see absolutely no reason set myself up potential radio interference problems glitching can easily occur hardwired controls-especially larger power systems Yes like some too have some nonisolated installations past worked pretty good time Now however feel less-than-the-best performance simply no longer necessary acceptable given proliferation good optically coupled designs Almost manufacturers now offer optical coupling way gowith some product exceptions may include specialty controls low-cell-count low-power systems Next application exception speed controls personal use must high-rate design Again given proliferation good speed controls market no longer reason accept relative inefficiency frame-rate designs case might use frame-rate design on-off switch ie in-between speeds application good use old speed controls cant bring myself throw away some modelers however tough decision may remain lone frame-rate tough choice know Futaba Electric receiver/speed control combination six- seven-cell power systems product works very well overall Ive seen flown Because BEC design simple lightweight installation minimum wiring possible receiver uses motor battery source power separate radio battery needed have use myself admire product often recommend beginning E-modelers reasons given above Nowif Futaba would upgrade high-rate design Futaba would upgrade more-than-seven-cell design Hint also look subtle characteristics speed control example prefer use control permits momentary motor burst either receiver arming switch turned off Also PRECISION MODEL PRODUCTS zZI4jas Made uSA t. BARSTOCK ALUMINUM SPINNERS RetailApprox Part No SizePriceWeight fl150B .. 1112 $1495 58 fl175B 14 5 95 oz TT-200B 1895 00 oz TT225B .. 21/4 5 80 oz TT226B .. 21/4 FAt . 2195 50 oz TT250-B /2 5 90 oz TT251B . 2112FAt 395 70 0z fl275B 14 5 20 oz TT276B .. 23/4 IFAtI 895 00 oz T1300B 3095 80 oz TT301B FAt 50 oz tT325B .. 3114 5 40 07 TT350B .. 3112 5 70 fl375B .. 33/4 5 20 fl400B 7995 70 07 3 Pieces Cone Back Ptate Retainer Screw Note 3 4 Blade Spinners Available Att Sizes Add $300 Per Spinner RetailApprox Part No SizePriceWeight TT140A .. 1/428 . $595 . 061or TT147A 428/7mm595061or TT610A .. 6 x 10mm 595 07 TT710A .. 7 x 10mm59508207 TT-516-A .. 5/1624 59507607 1T518A .. 5/1624/8mm59507607 TT810A Ox 10mm5950 7607 TT825A Ox 125mm5950 7507 TT375-A 3/824 117or TT-125-A lOx 125mm695115or 3 Pieces Nut Washer aird Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 April 1993 163 PROP NUT ADAPTORS V prefer use controls can allow sustained comes stays motor operation absence signal such receiver transmitter offa safety consideration Additionally prefer control has slightly slowed response mean prefer speed controls instantly respond stick motion rather lag behind littlesorta like servo requires some time transit kind operation permits model fly through momentary glitch opportunities noticeable motor speed reaction Finally some speed controls have poor line rejectionas follows Whenever servo moved receiver battery voltage may also move little depending battery condition wiring loss etc Some speed controls react line motion motor speed may fluctuate often noticeable lower throttle settings can occur near full throttle poorly designed controls Next time youre considering new speed control take look whats use field apply guidelines abovealong price availability considerationsto make best choice urge choose speed control meets important criteria dont too concerned about subtle issues depending feel fly happily quietly ever after Several small items topical interest have accumulated desk over time Ive decided collect tidbits sharing now First E-fliers also active amateur radio operators Im told Electric-oriented activity 7243 kHz Friday mornings 1000 ET can join AA4L Bob W2NDY John WA4ZDK Jim discuss favorite Electric subjects Incidentally AA4L other Bob Johnson gentleman told us help reduce motor glitching toroids motor leads August91 issue RIC Report Next its becoming increasingly clear year Electric Scale growing popularitynot just sheer numbers quality models size power systems well rather dramatically demonstrated KRC 92 fact Im beginning wonder Electric scale will soon grow dominate application Electric powerreplacing gliders-only image Electrics early years Anyway years KRC Best Scale award went Steven Stratt New York stunning Sopwith Swallow Steven man contact youre interested highly documented plans pix etc scale models days long gone can supply remarkable info package entitled Fabulous Planes Plans Aerodrome $10 plus $290 first-class postage historical album/documentary kit impressive collection actual photos plans listings whats available serious Electric historic scale modeler address Aerodrome PO Box 1425 FDR Station New York NY 10150 tell Steven Bob sent ya Finally since Electric motor mounts discussed earlier column cant help get chuckle out some wet mount advertising thats evolving recent years Have noticed antivibration how-tos products have popped up What Did someone just finally realize wet engines like shake rattle roll Closely akin topic mufflers seems no shortage how-tos productsfor Im thankful Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now arent glad fly Electric no-noise no-vibration nononsense power modeldoms future So ends yet column Thank continuing support nice comments what Im trying monthit makes monthly effort worthwhile fun case youre wondering March column did appear due flyby sorts getting column together Now know letters turn column first month its absence may have noticed some being case suggested expanded-length format month folks MA guess used words like reader uprising revolt revenge violence terrorist activity bombing etc convinced OkayI am exaggerating Anyway well try hard keep future columns sound steady years past Ive got lots lots good stuff share upcoming issues often find myself cant-walt state mind get print course direct result folks letters continuing supportas above Its selffeeding folks Thank again Okay its time think upbeat live areas experience real winterthink spring time get spring too awfully far away Please sure enclose SASE correspondence youd like reply Happy Quiet Landings Everyone cale/Troy Continued page 89 Lou Oskowski Douglas A-26 Invader bomber has long aeromodeling s favorite twin-engine subjects Lou Oskowskis outstanding 10-foot rendition best Ive seen long time Its /7-scale model Gerrard retracts its powered two 164 Model Aviation PING & HANDLING UPS Ground continental us $495 UPS Air & Parcel Post $495 plus 10% Subtotal Continental US UPS Nest Day Air $1400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal U S Mail $495 plus 10% Subtotal
Edition: Model Aviation - 1993/04
Page Numbers: 86, 87, 159, 162, 163, 164
Electric Connection Service ECS activ ity month includes three modelers would like find others locales share fun Electric always brings Paul Combs 4880 Glenbrook DrBoise ID 83704 Tel [208] 376-6119 has flying mostly seven-cell having great time tone letter think hell eventually move larger power systems definite trend Electric about 50% Astros current sales sizes 15 above Bill Mecca 912 Center St Throop PA 185 12 wrote nice letter commenting cant think friendlier group DOD I1I JUIUIdI1OU IIIULUr mounting methodnow very popular Lengths yellow inner rod Sullivan pushrod product red blue outer size form U-straps hold motors tightly V block resting glued 118-in ply floor model 2-56 screws draw straps tight 1/16-in foam tape V rest cushion motor Hold-down screws accessible bottom mount IR ADHO CONTROL individuals involved aeromodeling agree Bill think its especially true Electric aeromodeling Anyway Bill group northwestern Pennsylvania ELECTRICS s future radio control flying rests growth acceptance Electric-powered flight Right again Bill Okay folks its up now join forces Bill et al make Left A Great Planes Thrustmaster motor installed brass-strap approach Motor nests wooden V-cradle Clamp strap screws draw motor down tight Kopski recommends use two such straps smallest motors method differs Gold-N-Rod method screws accessed motor side may permit neater installation I 86 Model Aviation e Commercial motor mounting bracket Stitzer Model Design Two mount sizes available Mounts supplied tie wraps shown Kopski prefers using Gold-N-Rod ties draw screws Right Modified Gold-N-Rod scheme Bob Afflerback holds large Astro cobalt standard aluminum wet engine mount beams filed slightly fit motor housing better Braided wire soldered threaded couplers slipped through sections Gold-N-Rod hold-downs drawn tight nuts lock washers Afflerback photo Below Pieces needed Bob Kopskis latest motor mounting method K&S brass strip square section tubing normal hobby shop items Pull-down screws 2-56 hex head Iwu 1uI ai 1 ~ mNVvi ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 46 30 gALU STICKS 3648 1116x2331/16x1/410 3/32x2401/16x3/811 1/8x2431/161/216 3/16x2493/32x1/412 1/4x2563/32x3/813 1/32x3373/32x1/217 1/20x3371/8x1/809 1/16x3 37 49 31 1/Bx1/412 3/32x34458 37118x3/813 1/8x35574 AS1/8x1/218 3/16x36384 553/16x3/1612 1/4x37598 613/16x3/818 5/16x387115 16x 2 3/8x390128 711/41/418 1/2x3114160 4x 8 3/4x3170200 4x 2 1/16x45876 481/4x3/434 3/3247297 561/4x142 1/8x482109 565/16x5/1623 3/16496126 753/8x3/829 1/4x4115139 843/8x1/233 3/8x4170235 1443/8x3/444 1/2x4235273 2003/8x154 MATCHEDSHEETS42 1/2x 1/2 38 3/32x41091/2x3/448 1/8 x41291/2x160 3/16x41445/85/852 1/4 x41553/4x 3/4 75 BALSA HOT LINE Cull COC 745 6394 10. 6pm Cntngl Time Up ALSA TRIANGLES 36 141425 383630 121235 34 3445 1~55 BALSA PLANKS36 1,190 1,2157 143219 144293 11/243302 11/244395 22231 243335 244475 343515 344715 TAPERED SHEETS36 1/4266 14386 382 68 3/84398 23120 LIGRT 4-6 LB WOOD 36 1/32378 1/2078 1/1678 3/3293 1/8114 3/16132 1/4157 3/8188 1/2238 3/4375 1532 1/16x4123 3/32149 1/8169 3/16197 1/4237 3/8357 1/2482 18 19 24 19 21 31 26 28 32 45 57 30 39 49 56 73 55 66 82 70 98 LONESTAR EPOXY INSTANTGLUE 9 02 List 1009 1 oz Thick 300 5 Mm6691 oz Thin300 15 Mm6692oz Thick556 30Mm8692ozThin550 TRAILING EDGE 36 1/4132 5/1611/438 361 1/246 1/22711 must try 4-6 lb balsa SASSWOOD48 3/163/16 /161/4 /163/8 /161/246 3/163/460 1/4 1/4 42 1/43/649 1/43/480 3/83/860 3/81/270 3/83/496 1/21/290 123/4100 BUNDLE DEALS 20-1/1 6x3x36609 20-1/1 6x4x361035 20-3/32x3x36875 1 5-3/32x4x36999 15-1/5x3x36775 1o-1/8x4x36775 15-3/16x3x36940 10-3/16x4x36899 10-1/4336699 1O-1/4x4s361090 1 0-3/8x3x36890 5-3/8x4x36655 5-1 /2x3x36540 5-1/2x4x361110 O-/32x4x48930 5-1/8x4x48525 53/16x4x48620 51/444448680 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 1/81/81725 1/8142026 1/93/82232 3/163/162838 1/4143450 1/43/84055 1/41/24565 3/63/84969 3/841/26077 1/241/26688 1/2 43/47587 SPRUCE TRIANGLES 36 3/83/847 1/21/264 3/443/481 LITEPLV48 HARD MAPLE 14 38 3/83/8 3/6 12 3/8 34 1 34 IS 40 45 50 56 68 BIRCH DOWELS 36 1/812 311617 1/419 5/1625 3/832 3 PLY BIRCH 48 1/64x12835 1/32x12550 1/1612550 1/8x12495 SPLYBIRCH48 3/32x12725 1/8x12825 3/1612625 1/4x12650 3/8x12750 1/2x12900 GROOVED LG MOUNTS l2MeMa 1/861713/8x3/4115145 1/8x123503/8x3/415/3245 1/4x6275 1/4x125501/2x3/413/16150 LONE STAR MODELS 1623 57th St Lubbock TX 79412 Cont 48 States Handling Charge pay UPS Add $400 COD $500 extra PP APO FPO accept VISA MC Discever personal checks 000 6/4% tax Texas US currency Mm wood order $1000 06Tern Thirteen-year-old Chris Steel Lansdale Pennsylvania proudly holds Airtronics Eclipse KRC 92 fully equipped custom-built raffle prizes Chris first chance sticks few weeks after meet sure looked author Bob Kopski hes gonna make fine pilot Kopski lucky instructor day says plane great flier too Merle Miller 2136W Oakland Ave Hemet CA 92545 picked up some Vintage comments earlier column addition requesting ECS listing advised has some newin-the-box vintage escapements etc plans can sell Regular readers know appreciate electrified vintage planes cant help wonder someday might have official events Joe Utasi Jomar doing what hes famous forhelping modelers annual KRC meet Joe comes year sets up shop help out can flies between Hes known fix up some speed controls made competitors sorta like SAM Electric eventsfor competitive inclination course Way back September 1992 column offered some thoughts about heavy Continued page 159 Paul Hoisten plant manager Ace R/C having great time KRC 92 hes getting big charge out Kopskis Galloping Ghost-equipped vintage Esquireguided Micropro transmitter plus models on-board re encoder circuit Latter uses contemporary radio drives classic Mighty Midget motor/actuator nostalgic bang-bang manner Seeing believing Paul says Ace will back next years Electric Fly April 1993 87 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance wind might well dry other hand youre little aggressive figure would drift downwind thermal fortunate enough stumble youd wise carry some ballast youre type plans put nose down really search need carry enough ballast get moving significantly faster wind speed plane handles weight differently need experiment find out yours will react plane light side experiment adding small amount lead very light wind conditions will make fly little faster will also help keep track get hit wind gusts landing approach course stronger wind faster airspeed need faster need fly ballast add Eventually will reach point planes glide ratio deteriorates noticeably Ballasting beyond point usually fruitless Draggy floater types will reach point lower wing loading slicker highperformance ships Once determine point youll know complete window loadings available know keep beating around bush want real numbers want know exactly what wing loadings will work Im probably going regret sake beginners probably still completely dark opinions some broad rules thumb Gentle Lady-type two-meter will probably benefit ballasting up about 9 ozIsq ft wing loading stronger two-meter faster airfoil like Sagitta 600 can go up about 12 os/sq ft big old Paragon its draggy high-lift airfoil should probably go beyond 11 os/sq ft polyhedral Sensor 117 maybe 13 os/sq ft newer breed ships such Falcon 880 Legend may benefit up 15 ozIsq ft loading Increase wing loading increments about ounce per square foot anything less will hard notice Unless build really heavy should probably consider adding ballast winds above 8 mph hope Ive convinced try little weight Now need figure out put Ballast usually form lead needs secured directly over centerof-gravity Anywhere else means changing trim CG plane well adding weight enough ingenious ways mounting ballast fill another article Just make sure cant shift fall out during launching hard landings Note safety AMA rules state ballast must carried inside plane Thanks sharing knowledge Bob think beauties soaring hobby notion always something leam.always something new try. always plenty scope improve ones flying keep trying improve glider flying never gets boring As making ballast pieces please remember decide melt lead like readily available automobile wheel weights cast special shapes molten lead fumes toxic Lead melting should done outdoors very well-ventilated area Bob included personal note let us know what hes up latest building project Flite Lite Composites Thermal Eagle Mine first after Ron Vann took over company can vouch first class kit quality fact kits complete now Mark Allen sorry Mark started presheeted wing kit way go opinion know couldnt sheet wings light Thermal Eagle will Open-class contest plane 1993 chose 5D8000 airfoil option Ive flown several sailplanes airfoil option really love lightly loaded plan use Airtronics 94141 servos wings Ive using planes two years now have never stripped gear dont use servo savers radio Ill use Airtronics Vision 8SP course its still ultimate full-house soaring lectricslKopski Continued page 87 reputation Electric has Also respect Electric conversion wet designs noted contemporary wet kits generally impress being overbuiltie lumberyardsoften having too much too heavy wood makes models heavy begin emphasized important feel build both strong lightno matter what fly above background can understand sorta chuckied read Jim Oddinos Airplane Stuff column November 1992 issue RCM Among other good things piece Jim observes Pattern fliers have finally figured out weight enemy flight trying build bigger airplanes build lighter Nuff said same RCM issue has articles will interest Electric other modelers construction article written Joe Utasi alight-duty optically isolated electronic switch Joe known E modeling community reputable supplier fine speed controls company name Jomar Joe himself great time 92 KRC meet also won four fully assembled equipped test-flown raffle Electricsa Viking OT Continued page 162 INTRO PRICE$16000 ALL KITS FEATURE HAND LAID FIBERGLASS FUSELAGEPANEL UNES SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULKHEADS SEE YOUR LOCAL DEALER OR CALL HOBBY HANGAR 606-283-5746 FOR IMMEDIATR DEUVERY DEALER INQUIRIES WELCOME WEACCEPT VISA MASIERCARD & DISCOVER CARDS WEGLADLYSHIP C OD SHIPPING & HAND UNG $500 PER KIT COIIIINENTAL USA 071152 AREAS CALL KENTTJCKYRESIDENES ADD 6% SALES TAX HOBBY HANGAR ISA FULL SERVICE HOBBY SHOP WITH OVER 11000 ITEMS IN STOCI CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HANGAR EXLSIVED/STRWTOR FIBER SCALE MODELS 153 LLOYD AVE FLEM KY 41042 6e6-283-5746 P*YE 606-253-5889 FAX April 1993 159 FOCKE WULF 190 Made USA SPECIFICATIONS WINGSPAN 65 ENGINE SIZE609 2-SIROKE 9iI 20 4-SThOKE WEIGHT9-10 LBS t1R5 00 ThJ7Pa PPICC P47 THUNDERBOLT Made isz USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT8-ES LBS Made USA CESSNA 150 SPECIFICATIONS WINGSPAN 6 ENGINE SIZE4560 2-S7ROKE WEIGHT7-75 LBS cun nn P40 WARHAWK Made USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT7-8 LBS SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AVArTARI V IwrnVrnTIAI iv OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITF SPARK PLUGS SILK 8 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASThRCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS N Koosh-In-It Koosh-In-It tough flex ible rubber/fabric laminate softens vibration between engine fuselage Cuts easily scissors insta n mnufes Sheets 2 x 4 x 1/16 thick Money back f complete y sat st ed Send check money o der $490 pIus 90 P&H $580toBalsadust PO Box78 NewYo k NY 002 212 737-0071 Fax 212 737 0072 FREE Ordernowand ece ye sam Aura pie issue Balsadust Quart efly first magazine exciusiveyfo B/C entertainment --a $400 va ueanQ71 1 RC Electrics/Kopski Continued page None Next regular RCM columnist Chuck Cunningham discusses Vintage flying scaled-down wet-powered Rudder Bug using Cox Fail Safe rudder-only radio radio operating old 27 mHz band becoming popular E-fliers small rudder-only Electrics fact Ive just recent ly purchased such application know used SEFLI group Long Island Anyway Chuck comments flying CB band now seems possible againwith safety has experience well having recently flying Electrified Wave Hitec Shredder pictured January 1993 column Also several Cox radios used recent KRC meet several folks flew 27 mHz band other radio equipment 92 Labor Day Vintage Reunion Selinsgrove Pennsylva alaall no known interference prob lems Think about course RCM issue offers Silent Power column written friend Ted Davey DSC fame mention last cause really needs no mention butjust caseI want Ted remain friend Several columns recent past have included discussions computers modeling general E-modeling particular few examples add growing list First something especially forE-fliers Ken Myers Walled Lake Michigan active E-flier editor Ampeer newsletter Electric Flyers Only Inc club Ken has developed computer program designed evaluate motor/battery/plane configurations can get copy own use sending Ken $750 can supply program Apple II format MS DOS either 35-in 525-in disks order MS-DOS version also need let Ken know version BASIC running Ive playing program having lot fun Incidentally EFO has about 30 active members mails out about 160 newsletters month because great newsletter demand can subscribe Ampeer $10 year $17 outside USalso writing Ken com plete address 1911 Bradshaw Ct Walled Lake MI 48390 Dont forget tell Ken Bob sent ya Another program interest modelers presented December issue RCM Create Computerized Magazine Article Index authors Dave Garwood Jim Harrigan present program keep track magazine articlessomething wish available last 40 years program called MAG-TRACK written BASIC designed allow search infor mation author title subject can manually copy listing given article buy disk IBM-PC/compatible machines $5 $7 525-in 35-in disks respectively sounds good just sent Jim Harrigan 103 Highland Ave Rensselaer NY 12144-1006 Finally Ive playing two model ing programs C&J Microsystems called WingDesigner EditFoil As titles suggest can design everything except fuselage newest Electric wetyuk design wing-design program will allow print plot working drawings upon build almost kind wing outline including tapered swept planforms Also can plot rib outlines including spar notches etc Dont worry intended design large wont fit printer paper program allows print multiple spans fractional chords can taped together Also can save design disk have professionally plotted commercial printer Okay folks need now fuselage design programand computer-controlled robotized android builder could also pressed mow lawns between crashes Some photos month detail several motor mounting methods First up new product Stitzer Model Designthe Aero-Vee mount formed-aluminum mount available two sizes up 15-size motors other up 40-size motors designed mounting against firewall former motor held mount draw straps made tie-wraps yellow inner rods Gold-N-Rods similar productsthe same technique introduced column several years ago modeler behind design Sam Stitzer regular KRC Electric Fly attendee years can write Sam Stitzer Model Design 113 William St Centre Hall PA 16828 Having just referenced own Gold-NRod technique see MA July 87 variation photo illustrates reinforced version designed friend Bob Afflerback uses braided metal cable threaded couplers soldered ends real ly put bite large motor installations Bob rests motor beams allmetal wet power plant mount shown beams first modified slightly inside taper better match shape round motor housingeasily done file threaded ends cable pass through holes beams tightened nuts lock washers bottom beams Note pieces Gold-N-Rod inners slipped over cable top motor done before threaded ends soldered think approach would hold automobile starter Incidentally Bob Beth Afflerback n kids have also regular attendees KRC meet years past Bob has written several articles columns Flying Models might want look feature coverage 92 KRC meet early 93 issue Model Builder magazine 162 Model Aviation REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE Finally Ive also trying new motor mounting variation approach useful possible desirable use draw screws pull down GoldN-Rod straps Such might case simply dont want exposed hardware bottom sleek new fuselage So far Ive used technique great success both 50-watt Hi Line 50 100-watt Great Planes Thrustmaster motors see no reason could applied much higher power installations intend just upcoming months Fabricating assembling new mount relatively easy still based ply baseplate usually /s-in thick made part model structure wooden V motor rest block fit between motor Whats basically new hardware As shown photos make motor draw straps -in-wide 0016-in K&S brass strip material readily available hobby shops end strap necked down just under /s-in wide length about /o Ive found easy nibbling tool two narrowed ends bent back formed main strap pictured short length about 1/2 /8-in inside square K&S brass tube slipped over J-formed strap ends Finally 2-56 draw screw small washer under head dropped through square tubing top side shown Thus bent-back strap end captured between inside side wall square tube screw Whats important tube must slightly longer bent-back strap ends screw washer bears down tube end strap end tube turn bears down latter bottom J motor nested suitably sized wooden V-block preformed U-shaped brass straps dropped over motor draw screws turned 2-56 blind mounting nuts installed baseplate bottom Incidentally finished wooden V motor rest should have pieces A6 x /2-in single-sided foam tape sloped sides better nest round motor housing add some friction latter Adhere sticky wood motor course formed brass strap length must such very ends J ends touch base mounting plate preclude proper tightening draw straps against motor Also advisable make V-block no wider outside diameter motor locate blind nuts baseplate spaced straps snug against V-block outer edgesie straps come straight down motor above Finally prefer use socket-head screws hex driver tighten screws easily Let know works out past readers wrote tell well Gold-N-Rod approach worked Ive seen such installations show up KRC over years Maybe variant will also catch Speed controls regular readers know have occupied much space within column part because own intense personal interest associated problems can occur Also over years Ive opportunity examine use brands though well design build own controls scratch As result extensive experience both bench air both important Ive compiled own criteria speed control selection since get letters subject thought would make good column topic Firstexcept noted belowany speed control use must optically coupled Simply put refuse use anything less see absolutely no reason set myself up potential radio interference problems glitching can easily occur hardwired controls-especially larger power systems Yes like some too have some nonisolated installations past worked pretty good time Now however feel less-than-the-best performance simply no longer necessary acceptable given proliferation good optically coupled designs Almost manufacturers now offer optical coupling way gowith some product exceptions may include specialty controls low-cell-count low-power systems Next application exception speed controls personal use must high-rate design Again given proliferation good speed controls market no longer reason accept relative inefficiency frame-rate designs case might use frame-rate design on-off switch ie in-between speeds application good use old speed controls cant bring myself throw away some modelers however tough decision may remain lone frame-rate tough choice know Futaba Electric receiver/speed control combination six- seven-cell power systems product works very well overall Ive seen flown Because BEC design simple lightweight installation minimum wiring possible receiver uses motor battery source power separate radio battery needed have use myself admire product often recommend beginning E-modelers reasons given above Nowif Futaba would upgrade high-rate design Futaba would upgrade more-than-seven-cell design Hint also look subtle characteristics speed control example prefer use control permits momentary motor burst either receiver arming switch turned off Also PRECISION MODEL PRODUCTS zZI4jas Made uSA t. BARSTOCK ALUMINUM SPINNERS RetailApprox Part No SizePriceWeight fl150B .. 1112 $1495 58 fl175B 14 5 95 oz TT-200B 1895 00 oz TT225B .. 21/4 5 80 oz TT226B .. 21/4 FAt . 2195 50 oz TT250-B /2 5 90 oz TT251B . 2112FAt 395 70 0z fl275B 14 5 20 oz TT276B .. 23/4 IFAtI 895 00 oz T1300B 3095 80 oz TT301B FAt 50 oz tT325B .. 3114 5 40 07 TT350B .. 3112 5 70 fl375B .. 33/4 5 20 fl400B 7995 70 07 3 Pieces Cone Back Ptate Retainer Screw Note 3 4 Blade Spinners Available Att Sizes Add $300 Per Spinner RetailApprox Part No SizePriceWeight TT140A .. 1/428 . $595 . 061or TT147A 428/7mm595061or TT610A .. 6 x 10mm 595 07 TT710A .. 7 x 10mm59508207 TT-516-A .. 5/1624 59507607 1T518A .. 5/1624/8mm59507607 TT810A Ox 10mm5950 7607 TT825A Ox 125mm5950 7507 TT375-A 3/824 117or TT-125-A lOx 125mm695115or 3 Pieces Nut Washer aird Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 April 1993 163 PROP NUT ADAPTORS V prefer use controls can allow sustained comes stays motor operation absence signal such receiver transmitter offa safety consideration Additionally prefer control has slightly slowed response mean prefer speed controls instantly respond stick motion rather lag behind littlesorta like servo requires some time transit kind operation permits model fly through momentary glitch opportunities noticeable motor speed reaction Finally some speed controls have poor line rejectionas follows Whenever servo moved receiver battery voltage may also move little depending battery condition wiring loss etc Some speed controls react line motion motor speed may fluctuate often noticeable lower throttle settings can occur near full throttle poorly designed controls Next time youre considering new speed control take look whats use field apply guidelines abovealong price availability considerationsto make best choice urge choose speed control meets important criteria dont too concerned about subtle issues depending feel fly happily quietly ever after Several small items topical interest have accumulated desk over time Ive decided collect tidbits sharing now First E-fliers also active amateur radio operators Im told Electric-oriented activity 7243 kHz Friday mornings 1000 ET can join AA4L Bob W2NDY John WA4ZDK Jim discuss favorite Electric subjects Incidentally AA4L other Bob Johnson gentleman told us help reduce motor glitching toroids motor leads August91 issue RIC Report Next its becoming increasingly clear year Electric Scale growing popularitynot just sheer numbers quality models size power systems well rather dramatically demonstrated KRC 92 fact Im beginning wonder Electric scale will soon grow dominate application Electric powerreplacing gliders-only image Electrics early years Anyway years KRC Best Scale award went Steven Stratt New York stunning Sopwith Swallow Steven man contact youre interested highly documented plans pix etc scale models days long gone can supply remarkable info package entitled Fabulous Planes Plans Aerodrome $10 plus $290 first-class postage historical album/documentary kit impressive collection actual photos plans listings whats available serious Electric historic scale modeler address Aerodrome PO Box 1425 FDR Station New York NY 10150 tell Steven Bob sent ya Finally since Electric motor mounts discussed earlier column cant help get chuckle out some wet mount advertising thats evolving recent years Have noticed antivibration how-tos products have popped up What Did someone just finally realize wet engines like shake rattle roll Closely akin topic mufflers seems no shortage how-tos productsfor Im thankful Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now arent glad fly Electric no-noise no-vibration nononsense power modeldoms future So ends yet column Thank continuing support nice comments what Im trying monthit makes monthly effort worthwhile fun case youre wondering March column did appear due flyby sorts getting column together Now know letters turn column first month its absence may have noticed some being case suggested expanded-length format month folks MA guess used words like reader uprising revolt revenge violence terrorist activity bombing etc convinced OkayI am exaggerating Anyway well try hard keep future columns sound steady years past Ive got lots lots good stuff share upcoming issues often find myself cant-walt state mind get print course direct result folks letters continuing supportas above Its selffeeding folks Thank again Okay its time think upbeat live areas experience real winterthink spring time get spring too awfully far away Please sure enclose SASE correspondence youd like reply Happy Quiet Landings Everyone cale/Troy Continued page 89 Lou Oskowski Douglas A-26 Invader bomber has long aeromodeling s favorite twin-engine subjects Lou Oskowskis outstanding 10-foot rendition best Ive seen long time Its /7-scale model Gerrard retracts its powered two 164 Model Aviation PING & HANDLING UPS Ground continental us $495 UPS Air & Parcel Post $495 plus 10% Subtotal Continental US UPS Nest Day Air $1400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal U S Mail $495 plus 10% Subtotal
Edition: Model Aviation - 1993/04
Page Numbers: 86, 87, 159, 162, 163, 164
Electric Connection Service ECS activ ity month includes three modelers would like find others locales share fun Electric always brings Paul Combs 4880 Glenbrook DrBoise ID 83704 Tel [208] 376-6119 has flying mostly seven-cell having great time tone letter think hell eventually move larger power systems definite trend Electric about 50% Astros current sales sizes 15 above Bill Mecca 912 Center St Throop PA 185 12 wrote nice letter commenting cant think friendlier group DOD I1I JUIUIdI1OU IIIULUr mounting methodnow very popular Lengths yellow inner rod Sullivan pushrod product red blue outer size form U-straps hold motors tightly V block resting glued 118-in ply floor model 2-56 screws draw straps tight 1/16-in foam tape V rest cushion motor Hold-down screws accessible bottom mount IR ADHO CONTROL individuals involved aeromodeling agree Bill think its especially true Electric aeromodeling Anyway Bill group northwestern Pennsylvania ELECTRICS s future radio control flying rests growth acceptance Electric-powered flight Right again Bill Okay folks its up now join forces Bill et al make Left A Great Planes Thrustmaster motor installed brass-strap approach Motor nests wooden V-cradle Clamp strap screws draw motor down tight Kopski recommends use two such straps smallest motors method differs Gold-N-Rod method screws accessed motor side may permit neater installation I 86 Model Aviation e Commercial motor mounting bracket Stitzer Model Design Two mount sizes available Mounts supplied tie wraps shown Kopski prefers using Gold-N-Rod ties draw screws Right Modified Gold-N-Rod scheme Bob Afflerback holds large Astro cobalt standard aluminum wet engine mount beams filed slightly fit motor housing better Braided wire soldered threaded couplers slipped through sections Gold-N-Rod hold-downs drawn tight nuts lock washers Afflerback photo Below Pieces needed Bob Kopskis latest motor mounting method K&S brass strip square section tubing normal hobby shop items Pull-down screws 2-56 hex head Iwu 1uI ai 1 ~ mNVvi ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 46 30 gALU STICKS 3648 1116x2331/16x1/410 3/32x2401/16x3/811 1/8x2431/161/216 3/16x2493/32x1/412 1/4x2563/32x3/813 1/32x3373/32x1/217 1/20x3371/8x1/809 1/16x3 37 49 31 1/Bx1/412 3/32x34458 37118x3/813 1/8x35574 AS1/8x1/218 3/16x36384 553/16x3/1612 1/4x37598 613/16x3/818 5/16x387115 16x 2 3/8x390128 711/41/418 1/2x3114160 4x 8 3/4x3170200 4x 2 1/16x45876 481/4x3/434 3/3247297 561/4x142 1/8x482109 565/16x5/1623 3/16496126 753/8x3/829 1/4x4115139 843/8x1/233 3/8x4170235 1443/8x3/444 1/2x4235273 2003/8x154 MATCHEDSHEETS42 1/2x 1/2 38 3/32x41091/2x3/448 1/8 x41291/2x160 3/16x41445/85/852 1/4 x41553/4x 3/4 75 BALSA HOT LINE Cull COC 745 6394 10. 6pm Cntngl Time Up ALSA TRIANGLES 36 141425 383630 121235 34 3445 1~55 BALSA PLANKS36 1,190 1,2157 143219 144293 11/243302 11/244395 22231 243335 244475 343515 344715 TAPERED SHEETS36 1/4266 14386 382 68 3/84398 23120 LIGRT 4-6 LB WOOD 36 1/32378 1/2078 1/1678 3/3293 1/8114 3/16132 1/4157 3/8188 1/2238 3/4375 1532 1/16x4123 3/32149 1/8169 3/16197 1/4237 3/8357 1/2482 18 19 24 19 21 31 26 28 32 45 57 30 39 49 56 73 55 66 82 70 98 LONESTAR EPOXY INSTANTGLUE 9 02 List 1009 1 oz Thick 300 5 Mm6691 oz Thin300 15 Mm6692oz Thick556 30Mm8692ozThin550 TRAILING EDGE 36 1/4132 5/1611/438 361 1/246 1/22711 must try 4-6 lb balsa SASSWOOD48 3/163/16 /161/4 /163/8 /161/246 3/163/460 1/4 1/4 42 1/43/649 1/43/480 3/83/860 3/81/270 3/83/496 1/21/290 123/4100 BUNDLE DEALS 20-1/1 6x3x36609 20-1/1 6x4x361035 20-3/32x3x36875 1 5-3/32x4x36999 15-1/5x3x36775 1o-1/8x4x36775 15-3/16x3x36940 10-3/16x4x36899 10-1/4336699 1O-1/4x4s361090 1 0-3/8x3x36890 5-3/8x4x36655 5-1 /2x3x36540 5-1/2x4x361110 O-/32x4x48930 5-1/8x4x48525 53/16x4x48620 51/444448680 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 1/81/81725 1/8142026 1/93/82232 3/163/162838 1/4143450 1/43/84055 1/41/24565 3/63/84969 3/841/26077 1/241/26688 1/2 43/47587 SPRUCE TRIANGLES 36 3/83/847 1/21/264 3/443/481 LITEPLV48 HARD MAPLE 14 38 3/83/8 3/6 12 3/8 34 1 34 IS 40 45 50 56 68 BIRCH DOWELS 36 1/812 311617 1/419 5/1625 3/832 3 PLY BIRCH 48 1/64x12835 1/32x12550 1/1612550 1/8x12495 SPLYBIRCH48 3/32x12725 1/8x12825 3/1612625 1/4x12650 3/8x12750 1/2x12900 GROOVED LG MOUNTS l2MeMa 1/861713/8x3/4115145 1/8x123503/8x3/415/3245 1/4x6275 1/4x125501/2x3/413/16150 LONE STAR MODELS 1623 57th St Lubbock TX 79412 Cont 48 States Handling Charge pay UPS Add $400 COD $500 extra PP APO FPO accept VISA MC Discever personal checks 000 6/4% tax Texas US currency Mm wood order $1000 06Tern Thirteen-year-old Chris Steel Lansdale Pennsylvania proudly holds Airtronics Eclipse KRC 92 fully equipped custom-built raffle prizes Chris first chance sticks few weeks after meet sure looked author Bob Kopski hes gonna make fine pilot Kopski lucky instructor day says plane great flier too Merle Miller 2136W Oakland Ave Hemet CA 92545 picked up some Vintage comments earlier column addition requesting ECS listing advised has some newin-the-box vintage escapements etc plans can sell Regular readers know appreciate electrified vintage planes cant help wonder someday might have official events Joe Utasi Jomar doing what hes famous forhelping modelers annual KRC meet Joe comes year sets up shop help out can flies between Hes known fix up some speed controls made competitors sorta like SAM Electric eventsfor competitive inclination course Way back September 1992 column offered some thoughts about heavy Continued page 159 Paul Hoisten plant manager Ace R/C having great time KRC 92 hes getting big charge out Kopskis Galloping Ghost-equipped vintage Esquireguided Micropro transmitter plus models on-board re encoder circuit Latter uses contemporary radio drives classic Mighty Midget motor/actuator nostalgic bang-bang manner Seeing believing Paul says Ace will back next years Electric Fly April 1993 87 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance wind might well dry other hand youre little aggressive figure would drift downwind thermal fortunate enough stumble youd wise carry some ballast youre type plans put nose down really search need carry enough ballast get moving significantly faster wind speed plane handles weight differently need experiment find out yours will react plane light side experiment adding small amount lead very light wind conditions will make fly little faster will also help keep track get hit wind gusts landing approach course stronger wind faster airspeed need faster need fly ballast add Eventually will reach point planes glide ratio deteriorates noticeably Ballasting beyond point usually fruitless Draggy floater types will reach point lower wing loading slicker highperformance ships Once determine point youll know complete window loadings available know keep beating around bush want real numbers want know exactly what wing loadings will work Im probably going regret sake beginners probably still completely dark opinions some broad rules thumb Gentle Lady-type two-meter will probably benefit ballasting up about 9 ozIsq ft wing loading stronger two-meter faster airfoil like Sagitta 600 can go up about 12 os/sq ft big old Paragon its draggy high-lift airfoil should probably go beyond 11 os/sq ft polyhedral Sensor 117 maybe 13 os/sq ft newer breed ships such Falcon 880 Legend may benefit up 15 ozIsq ft loading Increase wing loading increments about ounce per square foot anything less will hard notice Unless build really heavy should probably consider adding ballast winds above 8 mph hope Ive convinced try little weight Now need figure out put Ballast usually form lead needs secured directly over centerof-gravity Anywhere else means changing trim CG plane well adding weight enough ingenious ways mounting ballast fill another article Just make sure cant shift fall out during launching hard landings Note safety AMA rules state ballast must carried inside plane Thanks sharing knowledge Bob think beauties soaring hobby notion always something leam.always something new try. always plenty scope improve ones flying keep trying improve glider flying never gets boring As making ballast pieces please remember decide melt lead like readily available automobile wheel weights cast special shapes molten lead fumes toxic Lead melting should done outdoors very well-ventilated area Bob included personal note let us know what hes up latest building project Flite Lite Composites Thermal Eagle Mine first after Ron Vann took over company can vouch first class kit quality fact kits complete now Mark Allen sorry Mark started presheeted wing kit way go opinion know couldnt sheet wings light Thermal Eagle will Open-class contest plane 1993 chose 5D8000 airfoil option Ive flown several sailplanes airfoil option really love lightly loaded plan use Airtronics 94141 servos wings Ive using planes two years now have never stripped gear dont use servo savers radio Ill use Airtronics Vision 8SP course its still ultimate full-house soaring lectricslKopski Continued page 87 reputation Electric has Also respect Electric conversion wet designs noted contemporary wet kits generally impress being overbuiltie lumberyardsoften having too much too heavy wood makes models heavy begin emphasized important feel build both strong lightno matter what fly above background can understand sorta chuckied read Jim Oddinos Airplane Stuff column November 1992 issue RCM Among other good things piece Jim observes Pattern fliers have finally figured out weight enemy flight trying build bigger airplanes build lighter Nuff said same RCM issue has articles will interest Electric other modelers construction article written Joe Utasi alight-duty optically isolated electronic switch Joe known E modeling community reputable supplier fine speed controls company name Jomar Joe himself great time 92 KRC meet also won four fully assembled equipped test-flown raffle Electricsa Viking OT Continued page 162 INTRO PRICE$16000 ALL KITS FEATURE HAND LAID FIBERGLASS FUSELAGEPANEL UNES SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULKHEADS SEE YOUR LOCAL DEALER OR CALL HOBBY HANGAR 606-283-5746 FOR IMMEDIATR DEUVERY DEALER INQUIRIES WELCOME WEACCEPT VISA MASIERCARD & DISCOVER CARDS WEGLADLYSHIP C OD SHIPPING & HAND UNG $500 PER KIT COIIIINENTAL USA 071152 AREAS CALL KENTTJCKYRESIDENES ADD 6% SALES TAX HOBBY HANGAR ISA FULL SERVICE HOBBY SHOP WITH OVER 11000 ITEMS IN STOCI CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HANGAR EXLSIVED/STRWTOR FIBER SCALE MODELS 153 LLOYD AVE FLEM KY 41042 6e6-283-5746 P*YE 606-253-5889 FAX April 1993 159 FOCKE WULF 190 Made USA SPECIFICATIONS WINGSPAN 65 ENGINE SIZE609 2-SIROKE 9iI 20 4-SThOKE WEIGHT9-10 LBS t1R5 00 ThJ7Pa PPICC P47 THUNDERBOLT Made isz USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT8-ES LBS Made USA CESSNA 150 SPECIFICATIONS WINGSPAN 6 ENGINE SIZE4560 2-S7ROKE WEIGHT7-75 LBS cun nn P40 WARHAWK Made USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT7-8 LBS SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AVArTARI V IwrnVrnTIAI iv OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITF SPARK PLUGS SILK 8 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASThRCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS N Koosh-In-It Koosh-In-It tough flex ible rubber/fabric laminate softens vibration between engine fuselage Cuts easily scissors insta n mnufes Sheets 2 x 4 x 1/16 thick Money back f complete y sat st ed Send check money o der $490 pIus 90 P&H $580toBalsadust PO Box78 NewYo k NY 002 212 737-0071 Fax 212 737 0072 FREE Ordernowand ece ye sam Aura pie issue Balsadust Quart efly first magazine exciusiveyfo B/C entertainment --a $400 va ueanQ71 1 RC Electrics/Kopski Continued page None Next regular RCM columnist Chuck Cunningham discusses Vintage flying scaled-down wet-powered Rudder Bug using Cox Fail Safe rudder-only radio radio operating old 27 mHz band becoming popular E-fliers small rudder-only Electrics fact Ive just recent ly purchased such application know used SEFLI group Long Island Anyway Chuck comments flying CB band now seems possible againwith safety has experience well having recently flying Electrified Wave Hitec Shredder pictured January 1993 column Also several Cox radios used recent KRC meet several folks flew 27 mHz band other radio equipment 92 Labor Day Vintage Reunion Selinsgrove Pennsylva alaall no known interference prob lems Think about course RCM issue offers Silent Power column written friend Ted Davey DSC fame mention last cause really needs no mention butjust caseI want Ted remain friend Several columns recent past have included discussions computers modeling general E-modeling particular few examples add growing list First something especially forE-fliers Ken Myers Walled Lake Michigan active E-flier editor Ampeer newsletter Electric Flyers Only Inc club Ken has developed computer program designed evaluate motor/battery/plane configurations can get copy own use sending Ken $750 can supply program Apple II format MS DOS either 35-in 525-in disks order MS-DOS version also need let Ken know version BASIC running Ive playing program having lot fun Incidentally EFO has about 30 active members mails out about 160 newsletters month because great newsletter demand can subscribe Ampeer $10 year $17 outside USalso writing Ken com plete address 1911 Bradshaw Ct Walled Lake MI 48390 Dont forget tell Ken Bob sent ya Another program interest modelers presented December issue RCM Create Computerized Magazine Article Index authors Dave Garwood Jim Harrigan present program keep track magazine articlessomething wish available last 40 years program called MAG-TRACK written BASIC designed allow search infor mation author title subject can manually copy listing given article buy disk IBM-PC/compatible machines $5 $7 525-in 35-in disks respectively sounds good just sent Jim Harrigan 103 Highland Ave Rensselaer NY 12144-1006 Finally Ive playing two model ing programs C&J Microsystems called WingDesigner EditFoil As titles suggest can design everything except fuselage newest Electric wetyuk design wing-design program will allow print plot working drawings upon build almost kind wing outline including tapered swept planforms Also can plot rib outlines including spar notches etc Dont worry intended design large wont fit printer paper program allows print multiple spans fractional chords can taped together Also can save design disk have professionally plotted commercial printer Okay folks need now fuselage design programand computer-controlled robotized android builder could also pressed mow lawns between crashes Some photos month detail several motor mounting methods First up new product Stitzer Model Designthe Aero-Vee mount formed-aluminum mount available two sizes up 15-size motors other up 40-size motors designed mounting against firewall former motor held mount draw straps made tie-wraps yellow inner rods Gold-N-Rods similar productsthe same technique introduced column several years ago modeler behind design Sam Stitzer regular KRC Electric Fly attendee years can write Sam Stitzer Model Design 113 William St Centre Hall PA 16828 Having just referenced own Gold-NRod technique see MA July 87 variation photo illustrates reinforced version designed friend Bob Afflerback uses braided metal cable threaded couplers soldered ends real ly put bite large motor installations Bob rests motor beams allmetal wet power plant mount shown beams first modified slightly inside taper better match shape round motor housingeasily done file threaded ends cable pass through holes beams tightened nuts lock washers bottom beams Note pieces Gold-N-Rod inners slipped over cable top motor done before threaded ends soldered think approach would hold automobile starter Incidentally Bob Beth Afflerback n kids have also regular attendees KRC meet years past Bob has written several articles columns Flying Models might want look feature coverage 92 KRC meet early 93 issue Model Builder magazine 162 Model Aviation REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE Finally Ive also trying new motor mounting variation approach useful possible desirable use draw screws pull down GoldN-Rod straps Such might case simply dont want exposed hardware bottom sleek new fuselage So far Ive used technique great success both 50-watt Hi Line 50 100-watt Great Planes Thrustmaster motors see no reason could applied much higher power installations intend just upcoming months Fabricating assembling new mount relatively easy still based ply baseplate usually /s-in thick made part model structure wooden V motor rest block fit between motor Whats basically new hardware As shown photos make motor draw straps -in-wide 0016-in K&S brass strip material readily available hobby shops end strap necked down just under /s-in wide length about /o Ive found easy nibbling tool two narrowed ends bent back formed main strap pictured short length about 1/2 /8-in inside square K&S brass tube slipped over J-formed strap ends Finally 2-56 draw screw small washer under head dropped through square tubing top side shown Thus bent-back strap end captured between inside side wall square tube screw Whats important tube must slightly longer bent-back strap ends screw washer bears down tube end strap end tube turn bears down latter bottom J motor nested suitably sized wooden V-block preformed U-shaped brass straps dropped over motor draw screws turned 2-56 blind mounting nuts installed baseplate bottom Incidentally finished wooden V motor rest should have pieces A6 x /2-in single-sided foam tape sloped sides better nest round motor housing add some friction latter Adhere sticky wood motor course formed brass strap length must such very ends J ends touch base mounting plate preclude proper tightening draw straps against motor Also advisable make V-block no wider outside diameter motor locate blind nuts baseplate spaced straps snug against V-block outer edgesie straps come straight down motor above Finally prefer use socket-head screws hex driver tighten screws easily Let know works out past readers wrote tell well Gold-N-Rod approach worked Ive seen such installations show up KRC over years Maybe variant will also catch Speed controls regular readers know have occupied much space within column part because own intense personal interest associated problems can occur Also over years Ive opportunity examine use brands though well design build own controls scratch As result extensive experience both bench air both important Ive compiled own criteria speed control selection since get letters subject thought would make good column topic Firstexcept noted belowany speed control use must optically coupled Simply put refuse use anything less see absolutely no reason set myself up potential radio interference problems glitching can easily occur hardwired controls-especially larger power systems Yes like some too have some nonisolated installations past worked pretty good time Now however feel less-than-the-best performance simply no longer necessary acceptable given proliferation good optically coupled designs Almost manufacturers now offer optical coupling way gowith some product exceptions may include specialty controls low-cell-count low-power systems Next application exception speed controls personal use must high-rate design Again given proliferation good speed controls market no longer reason accept relative inefficiency frame-rate designs case might use frame-rate design on-off switch ie in-between speeds application good use old speed controls cant bring myself throw away some modelers however tough decision may remain lone frame-rate tough choice know Futaba Electric receiver/speed control combination six- seven-cell power systems product works very well overall Ive seen flown Because BEC design simple lightweight installation minimum wiring possible receiver uses motor battery source power separate radio battery needed have use myself admire product often recommend beginning E-modelers reasons given above Nowif Futaba would upgrade high-rate design Futaba would upgrade more-than-seven-cell design Hint also look subtle characteristics speed control example prefer use control permits momentary motor burst either receiver arming switch turned off Also PRECISION MODEL PRODUCTS zZI4jas Made uSA t. BARSTOCK ALUMINUM SPINNERS RetailApprox Part No SizePriceWeight fl150B .. 1112 $1495 58 fl175B 14 5 95 oz TT-200B 1895 00 oz TT225B .. 21/4 5 80 oz TT226B .. 21/4 FAt . 2195 50 oz TT250-B /2 5 90 oz TT251B . 2112FAt 395 70 0z fl275B 14 5 20 oz TT276B .. 23/4 IFAtI 895 00 oz T1300B 3095 80 oz TT301B FAt 50 oz tT325B .. 3114 5 40 07 TT350B .. 3112 5 70 fl375B .. 33/4 5 20 fl400B 7995 70 07 3 Pieces Cone Back Ptate Retainer Screw Note 3 4 Blade Spinners Available Att Sizes Add $300 Per Spinner RetailApprox Part No SizePriceWeight TT140A .. 1/428 . $595 . 061or TT147A 428/7mm595061or TT610A .. 6 x 10mm 595 07 TT710A .. 7 x 10mm59508207 TT-516-A .. 5/1624 59507607 1T518A .. 5/1624/8mm59507607 TT810A Ox 10mm5950 7607 TT825A Ox 125mm5950 7507 TT375-A 3/824 117or TT-125-A lOx 125mm695115or 3 Pieces Nut Washer aird Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 April 1993 163 PROP NUT ADAPTORS V prefer use controls can allow sustained comes stays motor operation absence signal such receiver transmitter offa safety consideration Additionally prefer control has slightly slowed response mean prefer speed controls instantly respond stick motion rather lag behind littlesorta like servo requires some time transit kind operation permits model fly through momentary glitch opportunities noticeable motor speed reaction Finally some speed controls have poor line rejectionas follows Whenever servo moved receiver battery voltage may also move little depending battery condition wiring loss etc Some speed controls react line motion motor speed may fluctuate often noticeable lower throttle settings can occur near full throttle poorly designed controls Next time youre considering new speed control take look whats use field apply guidelines abovealong price availability considerationsto make best choice urge choose speed control meets important criteria dont too concerned about subtle issues depending feel fly happily quietly ever after Several small items topical interest have accumulated desk over time Ive decided collect tidbits sharing now First E-fliers also active amateur radio operators Im told Electric-oriented activity 7243 kHz Friday mornings 1000 ET can join AA4L Bob W2NDY John WA4ZDK Jim discuss favorite Electric subjects Incidentally AA4L other Bob Johnson gentleman told us help reduce motor glitching toroids motor leads August91 issue RIC Report Next its becoming increasingly clear year Electric Scale growing popularitynot just sheer numbers quality models size power systems well rather dramatically demonstrated KRC 92 fact Im beginning wonder Electric scale will soon grow dominate application Electric powerreplacing gliders-only image Electrics early years Anyway years KRC Best Scale award went Steven Stratt New York stunning Sopwith Swallow Steven man contact youre interested highly documented plans pix etc scale models days long gone can supply remarkable info package entitled Fabulous Planes Plans Aerodrome $10 plus $290 first-class postage historical album/documentary kit impressive collection actual photos plans listings whats available serious Electric historic scale modeler address Aerodrome PO Box 1425 FDR Station New York NY 10150 tell Steven Bob sent ya Finally since Electric motor mounts discussed earlier column cant help get chuckle out some wet mount advertising thats evolving recent years Have noticed antivibration how-tos products have popped up What Did someone just finally realize wet engines like shake rattle roll Closely akin topic mufflers seems no shortage how-tos productsfor Im thankful Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now arent glad fly Electric no-noise no-vibration nononsense power modeldoms future So ends yet column Thank continuing support nice comments what Im trying monthit makes monthly effort worthwhile fun case youre wondering March column did appear due flyby sorts getting column together Now know letters turn column first month its absence may have noticed some being case suggested expanded-length format month folks MA guess used words like reader uprising revolt revenge violence terrorist activity bombing etc convinced OkayI am exaggerating Anyway well try hard keep future columns sound steady years past Ive got lots lots good stuff share upcoming issues often find myself cant-walt state mind get print course direct result folks letters continuing supportas above Its selffeeding folks Thank again Okay its time think upbeat live areas experience real winterthink spring time get spring too awfully far away Please sure enclose SASE correspondence youd like reply Happy Quiet Landings Everyone cale/Troy Continued page 89 Lou Oskowski Douglas A-26 Invader bomber has long aeromodeling s favorite twin-engine subjects Lou Oskowskis outstanding 10-foot rendition best Ive seen long time Its /7-scale model Gerrard retracts its powered two 164 Model Aviation PING & HANDLING UPS Ground continental us $495 UPS Air & Parcel Post $495 plus 10% Subtotal Continental US UPS Nest Day Air $1400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal U S Mail $495 plus 10% Subtotal
Edition: Model Aviation - 1993/04
Page Numbers: 86, 87, 159, 162, 163, 164
Electric Connection Service ECS activ ity month includes three modelers would like find others locales share fun Electric always brings Paul Combs 4880 Glenbrook DrBoise ID 83704 Tel [208] 376-6119 has flying mostly seven-cell having great time tone letter think hell eventually move larger power systems definite trend Electric about 50% Astros current sales sizes 15 above Bill Mecca 912 Center St Throop PA 185 12 wrote nice letter commenting cant think friendlier group DOD I1I JUIUIdI1OU IIIULUr mounting methodnow very popular Lengths yellow inner rod Sullivan pushrod product red blue outer size form U-straps hold motors tightly V block resting glued 118-in ply floor model 2-56 screws draw straps tight 1/16-in foam tape V rest cushion motor Hold-down screws accessible bottom mount IR ADHO CONTROL individuals involved aeromodeling agree Bill think its especially true Electric aeromodeling Anyway Bill group northwestern Pennsylvania ELECTRICS s future radio control flying rests growth acceptance Electric-powered flight Right again Bill Okay folks its up now join forces Bill et al make Left A Great Planes Thrustmaster motor installed brass-strap approach Motor nests wooden V-cradle Clamp strap screws draw motor down tight Kopski recommends use two such straps smallest motors method differs Gold-N-Rod method screws accessed motor side may permit neater installation I 86 Model Aviation e Commercial motor mounting bracket Stitzer Model Design Two mount sizes available Mounts supplied tie wraps shown Kopski prefers using Gold-N-Rod ties draw screws Right Modified Gold-N-Rod scheme Bob Afflerback holds large Astro cobalt standard aluminum wet engine mount beams filed slightly fit motor housing better Braided wire soldered threaded couplers slipped through sections Gold-N-Rod hold-downs drawn tight nuts lock washers Afflerback photo Below Pieces needed Bob Kopskis latest motor mounting method K&S brass strip square section tubing normal hobby shop items Pull-down screws 2-56 hex head Iwu 1uI ai 1 ~ mNVvi ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 46 30 gALU STICKS 3648 1116x2331/16x1/410 3/32x2401/16x3/811 1/8x2431/161/216 3/16x2493/32x1/412 1/4x2563/32x3/813 1/32x3373/32x1/217 1/20x3371/8x1/809 1/16x3 37 49 31 1/Bx1/412 3/32x34458 37118x3/813 1/8x35574 AS1/8x1/218 3/16x36384 553/16x3/1612 1/4x37598 613/16x3/818 5/16x387115 16x 2 3/8x390128 711/41/418 1/2x3114160 4x 8 3/4x3170200 4x 2 1/16x45876 481/4x3/434 3/3247297 561/4x142 1/8x482109 565/16x5/1623 3/16496126 753/8x3/829 1/4x4115139 843/8x1/233 3/8x4170235 1443/8x3/444 1/2x4235273 2003/8x154 MATCHEDSHEETS42 1/2x 1/2 38 3/32x41091/2x3/448 1/8 x41291/2x160 3/16x41445/85/852 1/4 x41553/4x 3/4 75 BALSA HOT LINE Cull COC 745 6394 10. 6pm Cntngl Time Up ALSA TRIANGLES 36 141425 383630 121235 34 3445 1~55 BALSA PLANKS36 1,190 1,2157 143219 144293 11/243302 11/244395 22231 243335 244475 343515 344715 TAPERED SHEETS36 1/4266 14386 382 68 3/84398 23120 LIGRT 4-6 LB WOOD 36 1/32378 1/2078 1/1678 3/3293 1/8114 3/16132 1/4157 3/8188 1/2238 3/4375 1532 1/16x4123 3/32149 1/8169 3/16197 1/4237 3/8357 1/2482 18 19 24 19 21 31 26 28 32 45 57 30 39 49 56 73 55 66 82 70 98 LONESTAR EPOXY INSTANTGLUE 9 02 List 1009 1 oz Thick 300 5 Mm6691 oz Thin300 15 Mm6692oz Thick556 30Mm8692ozThin550 TRAILING EDGE 36 1/4132 5/1611/438 361 1/246 1/22711 must try 4-6 lb balsa SASSWOOD48 3/163/16 /161/4 /163/8 /161/246 3/163/460 1/4 1/4 42 1/43/649 1/43/480 3/83/860 3/81/270 3/83/496 1/21/290 123/4100 BUNDLE DEALS 20-1/1 6x3x36609 20-1/1 6x4x361035 20-3/32x3x36875 1 5-3/32x4x36999 15-1/5x3x36775 1o-1/8x4x36775 15-3/16x3x36940 10-3/16x4x36899 10-1/4336699 1O-1/4x4s361090 1 0-3/8x3x36890 5-3/8x4x36655 5-1 /2x3x36540 5-1/2x4x361110 O-/32x4x48930 5-1/8x4x48525 53/16x4x48620 51/444448680 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 1/81/81725 1/8142026 1/93/82232 3/163/162838 1/4143450 1/43/84055 1/41/24565 3/63/84969 3/841/26077 1/241/26688 1/2 43/47587 SPRUCE TRIANGLES 36 3/83/847 1/21/264 3/443/481 LITEPLV48 HARD MAPLE 14 38 3/83/8 3/6 12 3/8 34 1 34 IS 40 45 50 56 68 BIRCH DOWELS 36 1/812 311617 1/419 5/1625 3/832 3 PLY BIRCH 48 1/64x12835 1/32x12550 1/1612550 1/8x12495 SPLYBIRCH48 3/32x12725 1/8x12825 3/1612625 1/4x12650 3/8x12750 1/2x12900 GROOVED LG MOUNTS l2MeMa 1/861713/8x3/4115145 1/8x123503/8x3/415/3245 1/4x6275 1/4x125501/2x3/413/16150 LONE STAR MODELS 1623 57th St Lubbock TX 79412 Cont 48 States Handling Charge pay UPS Add $400 COD $500 extra PP APO FPO accept VISA MC Discever personal checks 000 6/4% tax Texas US currency Mm wood order $1000 06Tern Thirteen-year-old Chris Steel Lansdale Pennsylvania proudly holds Airtronics Eclipse KRC 92 fully equipped custom-built raffle prizes Chris first chance sticks few weeks after meet sure looked author Bob Kopski hes gonna make fine pilot Kopski lucky instructor day says plane great flier too Merle Miller 2136W Oakland Ave Hemet CA 92545 picked up some Vintage comments earlier column addition requesting ECS listing advised has some newin-the-box vintage escapements etc plans can sell Regular readers know appreciate electrified vintage planes cant help wonder someday might have official events Joe Utasi Jomar doing what hes famous forhelping modelers annual KRC meet Joe comes year sets up shop help out can flies between Hes known fix up some speed controls made competitors sorta like SAM Electric eventsfor competitive inclination course Way back September 1992 column offered some thoughts about heavy Continued page 159 Paul Hoisten plant manager Ace R/C having great time KRC 92 hes getting big charge out Kopskis Galloping Ghost-equipped vintage Esquireguided Micropro transmitter plus models on-board re encoder circuit Latter uses contemporary radio drives classic Mighty Midget motor/actuator nostalgic bang-bang manner Seeing believing Paul says Ace will back next years Electric Fly April 1993 87 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance wind might well dry other hand youre little aggressive figure would drift downwind thermal fortunate enough stumble youd wise carry some ballast youre type plans put nose down really search need carry enough ballast get moving significantly faster wind speed plane handles weight differently need experiment find out yours will react plane light side experiment adding small amount lead very light wind conditions will make fly little faster will also help keep track get hit wind gusts landing approach course stronger wind faster airspeed need faster need fly ballast add Eventually will reach point planes glide ratio deteriorates noticeably Ballasting beyond point usually fruitless Draggy floater types will reach point lower wing loading slicker highperformance ships Once determine point youll know complete window loadings available know keep beating around bush want real numbers want know exactly what wing loadings will work Im probably going regret sake beginners probably still completely dark opinions some broad rules thumb Gentle Lady-type two-meter will probably benefit ballasting up about 9 ozIsq ft wing loading stronger two-meter faster airfoil like Sagitta 600 can go up about 12 os/sq ft big old Paragon its draggy high-lift airfoil should probably go beyond 11 os/sq ft polyhedral Sensor 117 maybe 13 os/sq ft newer breed ships such Falcon 880 Legend may benefit up 15 ozIsq ft loading Increase wing loading increments about ounce per square foot anything less will hard notice Unless build really heavy should probably consider adding ballast winds above 8 mph hope Ive convinced try little weight Now need figure out put Ballast usually form lead needs secured directly over centerof-gravity Anywhere else means changing trim CG plane well adding weight enough ingenious ways mounting ballast fill another article Just make sure cant shift fall out during launching hard landings Note safety AMA rules state ballast must carried inside plane Thanks sharing knowledge Bob think beauties soaring hobby notion always something leam.always something new try. always plenty scope improve ones flying keep trying improve glider flying never gets boring As making ballast pieces please remember decide melt lead like readily available automobile wheel weights cast special shapes molten lead fumes toxic Lead melting should done outdoors very well-ventilated area Bob included personal note let us know what hes up latest building project Flite Lite Composites Thermal Eagle Mine first after Ron Vann took over company can vouch first class kit quality fact kits complete now Mark Allen sorry Mark started presheeted wing kit way go opinion know couldnt sheet wings light Thermal Eagle will Open-class contest plane 1993 chose 5D8000 airfoil option Ive flown several sailplanes airfoil option really love lightly loaded plan use Airtronics 94141 servos wings Ive using planes two years now have never stripped gear dont use servo savers radio Ill use Airtronics Vision 8SP course its still ultimate full-house soaring lectricslKopski Continued page 87 reputation Electric has Also respect Electric conversion wet designs noted contemporary wet kits generally impress being overbuiltie lumberyardsoften having too much too heavy wood makes models heavy begin emphasized important feel build both strong lightno matter what fly above background can understand sorta chuckied read Jim Oddinos Airplane Stuff column November 1992 issue RCM Among other good things piece Jim observes Pattern fliers have finally figured out weight enemy flight trying build bigger airplanes build lighter Nuff said same RCM issue has articles will interest Electric other modelers construction article written Joe Utasi alight-duty optically isolated electronic switch Joe known E modeling community reputable supplier fine speed controls company name Jomar Joe himself great time 92 KRC meet also won four fully assembled equipped test-flown raffle Electricsa Viking OT Continued page 162 INTRO PRICE$16000 ALL KITS FEATURE HAND LAID FIBERGLASS FUSELAGEPANEL UNES SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULKHEADS SEE YOUR LOCAL DEALER OR CALL HOBBY HANGAR 606-283-5746 FOR IMMEDIATR DEUVERY DEALER INQUIRIES WELCOME WEACCEPT VISA MASIERCARD & DISCOVER CARDS WEGLADLYSHIP C OD SHIPPING & HAND UNG $500 PER KIT COIIIINENTAL USA 071152 AREAS CALL KENTTJCKYRESIDENES ADD 6% SALES TAX HOBBY HANGAR ISA FULL SERVICE HOBBY SHOP WITH OVER 11000 ITEMS IN STOCI CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HANGAR EXLSIVED/STRWTOR FIBER SCALE MODELS 153 LLOYD AVE FLEM KY 41042 6e6-283-5746 P*YE 606-253-5889 FAX April 1993 159 FOCKE WULF 190 Made USA SPECIFICATIONS WINGSPAN 65 ENGINE SIZE609 2-SIROKE 9iI 20 4-SThOKE WEIGHT9-10 LBS t1R5 00 ThJ7Pa PPICC P47 THUNDERBOLT Made isz USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT8-ES LBS Made USA CESSNA 150 SPECIFICATIONS WINGSPAN 6 ENGINE SIZE4560 2-S7ROKE WEIGHT7-75 LBS cun nn P40 WARHAWK Made USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT7-8 LBS SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AVArTARI V IwrnVrnTIAI iv OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITF SPARK PLUGS SILK 8 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASThRCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS N Koosh-In-It Koosh-In-It tough flex ible rubber/fabric laminate softens vibration between engine fuselage Cuts easily scissors insta n mnufes Sheets 2 x 4 x 1/16 thick Money back f complete y sat st ed Send check money o der $490 pIus 90 P&H $580toBalsadust PO Box78 NewYo k NY 002 212 737-0071 Fax 212 737 0072 FREE Ordernowand ece ye sam Aura pie issue Balsadust Quart efly first magazine exciusiveyfo B/C entertainment --a $400 va ueanQ71 1 RC Electrics/Kopski Continued page None Next regular RCM columnist Chuck Cunningham discusses Vintage flying scaled-down wet-powered Rudder Bug using Cox Fail Safe rudder-only radio radio operating old 27 mHz band becoming popular E-fliers small rudder-only Electrics fact Ive just recent ly purchased such application know used SEFLI group Long Island Anyway Chuck comments flying CB band now seems possible againwith safety has experience well having recently flying Electrified Wave Hitec Shredder pictured January 1993 column Also several Cox radios used recent KRC meet several folks flew 27 mHz band other radio equipment 92 Labor Day Vintage Reunion Selinsgrove Pennsylva alaall no known interference prob lems Think about course RCM issue offers Silent Power column written friend Ted Davey DSC fame mention last cause really needs no mention butjust caseI want Ted remain friend Several columns recent past have included discussions computers modeling general E-modeling particular few examples add growing list First something especially forE-fliers Ken Myers Walled Lake Michigan active E-flier editor Ampeer newsletter Electric Flyers Only Inc club Ken has developed computer program designed evaluate motor/battery/plane configurations can get copy own use sending Ken $750 can supply program Apple II format MS DOS either 35-in 525-in disks order MS-DOS version also need let Ken know version BASIC running Ive playing program having lot fun Incidentally EFO has about 30 active members mails out about 160 newsletters month because great newsletter demand can subscribe Ampeer $10 year $17 outside USalso writing Ken com plete address 1911 Bradshaw Ct Walled Lake MI 48390 Dont forget tell Ken Bob sent ya Another program interest modelers presented December issue RCM Create Computerized Magazine Article Index authors Dave Garwood Jim Harrigan present program keep track magazine articlessomething wish available last 40 years program called MAG-TRACK written BASIC designed allow search infor mation author title subject can manually copy listing given article buy disk IBM-PC/compatible machines $5 $7 525-in 35-in disks respectively sounds good just sent Jim Harrigan 103 Highland Ave Rensselaer NY 12144-1006 Finally Ive playing two model ing programs C&J Microsystems called WingDesigner EditFoil As titles suggest can design everything except fuselage newest Electric wetyuk design wing-design program will allow print plot working drawings upon build almost kind wing outline including tapered swept planforms Also can plot rib outlines including spar notches etc Dont worry intended design large wont fit printer paper program allows print multiple spans fractional chords can taped together Also can save design disk have professionally plotted commercial printer Okay folks need now fuselage design programand computer-controlled robotized android builder could also pressed mow lawns between crashes Some photos month detail several motor mounting methods First up new product Stitzer Model Designthe Aero-Vee mount formed-aluminum mount available two sizes up 15-size motors other up 40-size motors designed mounting against firewall former motor held mount draw straps made tie-wraps yellow inner rods Gold-N-Rods similar productsthe same technique introduced column several years ago modeler behind design Sam Stitzer regular KRC Electric Fly attendee years can write Sam Stitzer Model Design 113 William St Centre Hall PA 16828 Having just referenced own Gold-NRod technique see MA July 87 variation photo illustrates reinforced version designed friend Bob Afflerback uses braided metal cable threaded couplers soldered ends real ly put bite large motor installations Bob rests motor beams allmetal wet power plant mount shown beams first modified slightly inside taper better match shape round motor housingeasily done file threaded ends cable pass through holes beams tightened nuts lock washers bottom beams Note pieces Gold-N-Rod inners slipped over cable top motor done before threaded ends soldered think approach would hold automobile starter Incidentally Bob Beth Afflerback n kids have also regular attendees KRC meet years past Bob has written several articles columns Flying Models might want look feature coverage 92 KRC meet early 93 issue Model Builder magazine 162 Model Aviation REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE Finally Ive also trying new motor mounting variation approach useful possible desirable use draw screws pull down GoldN-Rod straps Such might case simply dont want exposed hardware bottom sleek new fuselage So far Ive used technique great success both 50-watt Hi Line 50 100-watt Great Planes Thrustmaster motors see no reason could applied much higher power installations intend just upcoming months Fabricating assembling new mount relatively easy still based ply baseplate usually /s-in thick made part model structure wooden V motor rest block fit between motor Whats basically new hardware As shown photos make motor draw straps -in-wide 0016-in K&S brass strip material readily available hobby shops end strap necked down just under /s-in wide length about /o Ive found easy nibbling tool two narrowed ends bent back formed main strap pictured short length about 1/2 /8-in inside square K&S brass tube slipped over J-formed strap ends Finally 2-56 draw screw small washer under head dropped through square tubing top side shown Thus bent-back strap end captured between inside side wall square tube screw Whats important tube must slightly longer bent-back strap ends screw washer bears down tube end strap end tube turn bears down latter bottom J motor nested suitably sized wooden V-block preformed U-shaped brass straps dropped over motor draw screws turned 2-56 blind mounting nuts installed baseplate bottom Incidentally finished wooden V motor rest should have pieces A6 x /2-in single-sided foam tape sloped sides better nest round motor housing add some friction latter Adhere sticky wood motor course formed brass strap length must such very ends J ends touch base mounting plate preclude proper tightening draw straps against motor Also advisable make V-block no wider outside diameter motor locate blind nuts baseplate spaced straps snug against V-block outer edgesie straps come straight down motor above Finally prefer use socket-head screws hex driver tighten screws easily Let know works out past readers wrote tell well Gold-N-Rod approach worked Ive seen such installations show up KRC over years Maybe variant will also catch Speed controls regular readers know have occupied much space within column part because own intense personal interest associated problems can occur Also over years Ive opportunity examine use brands though well design build own controls scratch As result extensive experience both bench air both important Ive compiled own criteria speed control selection since get letters subject thought would make good column topic Firstexcept noted belowany speed control use must optically coupled Simply put refuse use anything less see absolutely no reason set myself up potential radio interference problems glitching can easily occur hardwired controls-especially larger power systems Yes like some too have some nonisolated installations past worked pretty good time Now however feel less-than-the-best performance simply no longer necessary acceptable given proliferation good optically coupled designs Almost manufacturers now offer optical coupling way gowith some product exceptions may include specialty controls low-cell-count low-power systems Next application exception speed controls personal use must high-rate design Again given proliferation good speed controls market no longer reason accept relative inefficiency frame-rate designs case might use frame-rate design on-off switch ie in-between speeds application good use old speed controls cant bring myself throw away some modelers however tough decision may remain lone frame-rate tough choice know Futaba Electric receiver/speed control combination six- seven-cell power systems product works very well overall Ive seen flown Because BEC design simple lightweight installation minimum wiring possible receiver uses motor battery source power separate radio battery needed have use myself admire product often recommend beginning E-modelers reasons given above Nowif Futaba would upgrade high-rate design Futaba would upgrade more-than-seven-cell design Hint also look subtle characteristics speed control example prefer use control permits momentary motor burst either receiver arming switch turned off Also PRECISION MODEL PRODUCTS zZI4jas Made uSA t. BARSTOCK ALUMINUM SPINNERS RetailApprox Part No SizePriceWeight fl150B .. 1112 $1495 58 fl175B 14 5 95 oz TT-200B 1895 00 oz TT225B .. 21/4 5 80 oz TT226B .. 21/4 FAt . 2195 50 oz TT250-B /2 5 90 oz TT251B . 2112FAt 395 70 0z fl275B 14 5 20 oz TT276B .. 23/4 IFAtI 895 00 oz T1300B 3095 80 oz TT301B FAt 50 oz tT325B .. 3114 5 40 07 TT350B .. 3112 5 70 fl375B .. 33/4 5 20 fl400B 7995 70 07 3 Pieces Cone Back Ptate Retainer Screw Note 3 4 Blade Spinners Available Att Sizes Add $300 Per Spinner RetailApprox Part No SizePriceWeight TT140A .. 1/428 . $595 . 061or TT147A 428/7mm595061or TT610A .. 6 x 10mm 595 07 TT710A .. 7 x 10mm59508207 TT-516-A .. 5/1624 59507607 1T518A .. 5/1624/8mm59507607 TT810A Ox 10mm5950 7607 TT825A Ox 125mm5950 7507 TT375-A 3/824 117or TT-125-A lOx 125mm695115or 3 Pieces Nut Washer aird Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 April 1993 163 PROP NUT ADAPTORS V prefer use controls can allow sustained comes stays motor operation absence signal such receiver transmitter offa safety consideration Additionally prefer control has slightly slowed response mean prefer speed controls instantly respond stick motion rather lag behind littlesorta like servo requires some time transit kind operation permits model fly through momentary glitch opportunities noticeable motor speed reaction Finally some speed controls have poor line rejectionas follows Whenever servo moved receiver battery voltage may also move little depending battery condition wiring loss etc Some speed controls react line motion motor speed may fluctuate often noticeable lower throttle settings can occur near full throttle poorly designed controls Next time youre considering new speed control take look whats use field apply guidelines abovealong price availability considerationsto make best choice urge choose speed control meets important criteria dont too concerned about subtle issues depending feel fly happily quietly ever after Several small items topical interest have accumulated desk over time Ive decided collect tidbits sharing now First E-fliers also active amateur radio operators Im told Electric-oriented activity 7243 kHz Friday mornings 1000 ET can join AA4L Bob W2NDY John WA4ZDK Jim discuss favorite Electric subjects Incidentally AA4L other Bob Johnson gentleman told us help reduce motor glitching toroids motor leads August91 issue RIC Report Next its becoming increasingly clear year Electric Scale growing popularitynot just sheer numbers quality models size power systems well rather dramatically demonstrated KRC 92 fact Im beginning wonder Electric scale will soon grow dominate application Electric powerreplacing gliders-only image Electrics early years Anyway years KRC Best Scale award went Steven Stratt New York stunning Sopwith Swallow Steven man contact youre interested highly documented plans pix etc scale models days long gone can supply remarkable info package entitled Fabulous Planes Plans Aerodrome $10 plus $290 first-class postage historical album/documentary kit impressive collection actual photos plans listings whats available serious Electric historic scale modeler address Aerodrome PO Box 1425 FDR Station New York NY 10150 tell Steven Bob sent ya Finally since Electric motor mounts discussed earlier column cant help get chuckle out some wet mount advertising thats evolving recent years Have noticed antivibration how-tos products have popped up What Did someone just finally realize wet engines like shake rattle roll Closely akin topic mufflers seems no shortage how-tos productsfor Im thankful Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now arent glad fly Electric no-noise no-vibration nononsense power modeldoms future So ends yet column Thank continuing support nice comments what Im trying monthit makes monthly effort worthwhile fun case youre wondering March column did appear due flyby sorts getting column together Now know letters turn column first month its absence may have noticed some being case suggested expanded-length format month folks MA guess used words like reader uprising revolt revenge violence terrorist activity bombing etc convinced OkayI am exaggerating Anyway well try hard keep future columns sound steady years past Ive got lots lots good stuff share upcoming issues often find myself cant-walt state mind get print course direct result folks letters continuing supportas above Its selffeeding folks Thank again Okay its time think upbeat live areas experience real winterthink spring time get spring too awfully far away Please sure enclose SASE correspondence youd like reply Happy Quiet Landings Everyone cale/Troy Continued page 89 Lou Oskowski Douglas A-26 Invader bomber has long aeromodeling s favorite twin-engine subjects Lou Oskowskis outstanding 10-foot rendition best Ive seen long time Its /7-scale model Gerrard retracts its powered two 164 Model Aviation PING & HANDLING UPS Ground continental us $495 UPS Air & Parcel Post $495 plus 10% Subtotal Continental US UPS Nest Day Air $1400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal U S Mail $495 plus 10% Subtotal
Edition: Model Aviation - 1993/04
Page Numbers: 86, 87, 159, 162, 163, 164
Electric Connection Service ECS activ ity month includes three modelers would like find others locales share fun Electric always brings Paul Combs 4880 Glenbrook DrBoise ID 83704 Tel [208] 376-6119 has flying mostly seven-cell having great time tone letter think hell eventually move larger power systems definite trend Electric about 50% Astros current sales sizes 15 above Bill Mecca 912 Center St Throop PA 185 12 wrote nice letter commenting cant think friendlier group DOD I1I JUIUIdI1OU IIIULUr mounting methodnow very popular Lengths yellow inner rod Sullivan pushrod product red blue outer size form U-straps hold motors tightly V block resting glued 118-in ply floor model 2-56 screws draw straps tight 1/16-in foam tape V rest cushion motor Hold-down screws accessible bottom mount IR ADHO CONTROL individuals involved aeromodeling agree Bill think its especially true Electric aeromodeling Anyway Bill group northwestern Pennsylvania ELECTRICS s future radio control flying rests growth acceptance Electric-powered flight Right again Bill Okay folks its up now join forces Bill et al make Left A Great Planes Thrustmaster motor installed brass-strap approach Motor nests wooden V-cradle Clamp strap screws draw motor down tight Kopski recommends use two such straps smallest motors method differs Gold-N-Rod method screws accessed motor side may permit neater installation I 86 Model Aviation e Commercial motor mounting bracket Stitzer Model Design Two mount sizes available Mounts supplied tie wraps shown Kopski prefers using Gold-N-Rod ties draw screws Right Modified Gold-N-Rod scheme Bob Afflerback holds large Astro cobalt standard aluminum wet engine mount beams filed slightly fit motor housing better Braided wire soldered threaded couplers slipped through sections Gold-N-Rod hold-downs drawn tight nuts lock washers Afflerback photo Below Pieces needed Bob Kopskis latest motor mounting method K&S brass strip square section tubing normal hobby shop items Pull-down screws 2-56 hex head Iwu 1uI ai 1 ~ mNVvi ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 46 30 gALU STICKS 3648 1116x2331/16x1/410 3/32x2401/16x3/811 1/8x2431/161/216 3/16x2493/32x1/412 1/4x2563/32x3/813 1/32x3373/32x1/217 1/20x3371/8x1/809 1/16x3 37 49 31 1/Bx1/412 3/32x34458 37118x3/813 1/8x35574 AS1/8x1/218 3/16x36384 553/16x3/1612 1/4x37598 613/16x3/818 5/16x387115 16x 2 3/8x390128 711/41/418 1/2x3114160 4x 8 3/4x3170200 4x 2 1/16x45876 481/4x3/434 3/3247297 561/4x142 1/8x482109 565/16x5/1623 3/16496126 753/8x3/829 1/4x4115139 843/8x1/233 3/8x4170235 1443/8x3/444 1/2x4235273 2003/8x154 MATCHEDSHEETS42 1/2x 1/2 38 3/32x41091/2x3/448 1/8 x41291/2x160 3/16x41445/85/852 1/4 x41553/4x 3/4 75 BALSA HOT LINE Cull COC 745 6394 10. 6pm Cntngl Time Up ALSA TRIANGLES 36 141425 383630 121235 34 3445 1~55 BALSA PLANKS36 1,190 1,2157 143219 144293 11/243302 11/244395 22231 243335 244475 343515 344715 TAPERED SHEETS36 1/4266 14386 382 68 3/84398 23120 LIGRT 4-6 LB WOOD 36 1/32378 1/2078 1/1678 3/3293 1/8114 3/16132 1/4157 3/8188 1/2238 3/4375 1532 1/16x4123 3/32149 1/8169 3/16197 1/4237 3/8357 1/2482 18 19 24 19 21 31 26 28 32 45 57 30 39 49 56 73 55 66 82 70 98 LONESTAR EPOXY INSTANTGLUE 9 02 List 1009 1 oz Thick 300 5 Mm6691 oz Thin300 15 Mm6692oz Thick556 30Mm8692ozThin550 TRAILING EDGE 36 1/4132 5/1611/438 361 1/246 1/22711 must try 4-6 lb balsa SASSWOOD48 3/163/16 /161/4 /163/8 /161/246 3/163/460 1/4 1/4 42 1/43/649 1/43/480 3/83/860 3/81/270 3/83/496 1/21/290 123/4100 BUNDLE DEALS 20-1/1 6x3x36609 20-1/1 6x4x361035 20-3/32x3x36875 1 5-3/32x4x36999 15-1/5x3x36775 1o-1/8x4x36775 15-3/16x3x36940 10-3/16x4x36899 10-1/4336699 1O-1/4x4s361090 1 0-3/8x3x36890 5-3/8x4x36655 5-1 /2x3x36540 5-1/2x4x361110 O-/32x4x48930 5-1/8x4x48525 53/16x4x48620 51/444448680 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 1/81/81725 1/8142026 1/93/82232 3/163/162838 1/4143450 1/43/84055 1/41/24565 3/63/84969 3/841/26077 1/241/26688 1/2 43/47587 SPRUCE TRIANGLES 36 3/83/847 1/21/264 3/443/481 LITEPLV48 HARD MAPLE 14 38 3/83/8 3/6 12 3/8 34 1 34 IS 40 45 50 56 68 BIRCH DOWELS 36 1/812 311617 1/419 5/1625 3/832 3 PLY BIRCH 48 1/64x12835 1/32x12550 1/1612550 1/8x12495 SPLYBIRCH48 3/32x12725 1/8x12825 3/1612625 1/4x12650 3/8x12750 1/2x12900 GROOVED LG MOUNTS l2MeMa 1/861713/8x3/4115145 1/8x123503/8x3/415/3245 1/4x6275 1/4x125501/2x3/413/16150 LONE STAR MODELS 1623 57th St Lubbock TX 79412 Cont 48 States Handling Charge pay UPS Add $400 COD $500 extra PP APO FPO accept VISA MC Discever personal checks 000 6/4% tax Texas US currency Mm wood order $1000 06Tern Thirteen-year-old Chris Steel Lansdale Pennsylvania proudly holds Airtronics Eclipse KRC 92 fully equipped custom-built raffle prizes Chris first chance sticks few weeks after meet sure looked author Bob Kopski hes gonna make fine pilot Kopski lucky instructor day says plane great flier too Merle Miller 2136W Oakland Ave Hemet CA 92545 picked up some Vintage comments earlier column addition requesting ECS listing advised has some newin-the-box vintage escapements etc plans can sell Regular readers know appreciate electrified vintage planes cant help wonder someday might have official events Joe Utasi Jomar doing what hes famous forhelping modelers annual KRC meet Joe comes year sets up shop help out can flies between Hes known fix up some speed controls made competitors sorta like SAM Electric eventsfor competitive inclination course Way back September 1992 column offered some thoughts about heavy Continued page 159 Paul Hoisten plant manager Ace R/C having great time KRC 92 hes getting big charge out Kopskis Galloping Ghost-equipped vintage Esquireguided Micropro transmitter plus models on-board re encoder circuit Latter uses contemporary radio drives classic Mighty Midget motor/actuator nostalgic bang-bang manner Seeing believing Paul says Ace will back next years Electric Fly April 1993 87 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance wind might well dry other hand youre little aggressive figure would drift downwind thermal fortunate enough stumble youd wise carry some ballast youre type plans put nose down really search need carry enough ballast get moving significantly faster wind speed plane handles weight differently need experiment find out yours will react plane light side experiment adding small amount lead very light wind conditions will make fly little faster will also help keep track get hit wind gusts landing approach course stronger wind faster airspeed need faster need fly ballast add Eventually will reach point planes glide ratio deteriorates noticeably Ballasting beyond point usually fruitless Draggy floater types will reach point lower wing loading slicker highperformance ships Once determine point youll know complete window loadings available know keep beating around bush want real numbers want know exactly what wing loadings will work Im probably going regret sake beginners probably still completely dark opinions some broad rules thumb Gentle Lady-type two-meter will probably benefit ballasting up about 9 ozIsq ft wing loading stronger two-meter faster airfoil like Sagitta 600 can go up about 12 os/sq ft big old Paragon its draggy high-lift airfoil should probably go beyond 11 os/sq ft polyhedral Sensor 117 maybe 13 os/sq ft newer breed ships such Falcon 880 Legend may benefit up 15 ozIsq ft loading Increase wing loading increments about ounce per square foot anything less will hard notice Unless build really heavy should probably consider adding ballast winds above 8 mph hope Ive convinced try little weight Now need figure out put Ballast usually form lead needs secured directly over centerof-gravity Anywhere else means changing trim CG plane well adding weight enough ingenious ways mounting ballast fill another article Just make sure cant shift fall out during launching hard landings Note safety AMA rules state ballast must carried inside plane Thanks sharing knowledge Bob think beauties soaring hobby notion always something leam.always something new try. always plenty scope improve ones flying keep trying improve glider flying never gets boring As making ballast pieces please remember decide melt lead like readily available automobile wheel weights cast special shapes molten lead fumes toxic Lead melting should done outdoors very well-ventilated area Bob included personal note let us know what hes up latest building project Flite Lite Composites Thermal Eagle Mine first after Ron Vann took over company can vouch first class kit quality fact kits complete now Mark Allen sorry Mark started presheeted wing kit way go opinion know couldnt sheet wings light Thermal Eagle will Open-class contest plane 1993 chose 5D8000 airfoil option Ive flown several sailplanes airfoil option really love lightly loaded plan use Airtronics 94141 servos wings Ive using planes two years now have never stripped gear dont use servo savers radio Ill use Airtronics Vision 8SP course its still ultimate full-house soaring lectricslKopski Continued page 87 reputation Electric has Also respect Electric conversion wet designs noted contemporary wet kits generally impress being overbuiltie lumberyardsoften having too much too heavy wood makes models heavy begin emphasized important feel build both strong lightno matter what fly above background can understand sorta chuckied read Jim Oddinos Airplane Stuff column November 1992 issue RCM Among other good things piece Jim observes Pattern fliers have finally figured out weight enemy flight trying build bigger airplanes build lighter Nuff said same RCM issue has articles will interest Electric other modelers construction article written Joe Utasi alight-duty optically isolated electronic switch Joe known E modeling community reputable supplier fine speed controls company name Jomar Joe himself great time 92 KRC meet also won four fully assembled equipped test-flown raffle Electricsa Viking OT Continued page 162 INTRO PRICE$16000 ALL KITS FEATURE HAND LAID FIBERGLASS FUSELAGEPANEL UNES SCALE DETAILSFOAM CORE WINGS & MACHINE cirr FORMERS & BULKHEADS SEE YOUR LOCAL DEALER OR CALL HOBBY HANGAR 606-283-5746 FOR IMMEDIATR DEUVERY DEALER INQUIRIES WELCOME WEACCEPT VISA MASIERCARD & DISCOVER CARDS WEGLADLYSHIP C OD SHIPPING & HAND UNG $500 PER KIT COIIIINENTAL USA 071152 AREAS CALL KENTTJCKYRESIDENES ADD 6% SALES TAX HOBBY HANGAR ISA FULL SERVICE HOBBY SHOP WITH OVER 11000 ITEMS IN STOCI CATALOGS AVAILABLE $400 EACH WIREBATE ON FIRST ORDER SPECIFY PLANEHELICOPTER OR CAR HANGAR EXLSIVED/STRWTOR FIBER SCALE MODELS 153 LLOYD AVE FLEM KY 41042 6e6-283-5746 P*YE 606-253-5889 FAX April 1993 159 FOCKE WULF 190 Made USA SPECIFICATIONS WINGSPAN 65 ENGINE SIZE609 2-SIROKE 9iI 20 4-SThOKE WEIGHT9-10 LBS t1R5 00 ThJ7Pa PPICC P47 THUNDERBOLT Made isz USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT8-ES LBS Made USA CESSNA 150 SPECIFICATIONS WINGSPAN 6 ENGINE SIZE4560 2-S7ROKE WEIGHT7-75 LBS cun nn P40 WARHAWK Made USA SPECIFICATIONS WING SPAN 60 ENGINE SIZE60 2-STROKE WEIGHT7-8 LBS SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AVArTARI V IwrnVrnTIAI iv OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITF SPARK PLUGS SILK 8 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASThRCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS N Koosh-In-It Koosh-In-It tough flex ible rubber/fabric laminate softens vibration between engine fuselage Cuts easily scissors insta n mnufes Sheets 2 x 4 x 1/16 thick Money back f complete y sat st ed Send check money o der $490 pIus 90 P&H $580toBalsadust PO Box78 NewYo k NY 002 212 737-0071 Fax 212 737 0072 FREE Ordernowand ece ye sam Aura pie issue Balsadust Quart efly first magazine exciusiveyfo B/C entertainment --a $400 va ueanQ71 1 RC Electrics/Kopski Continued page None Next regular RCM columnist Chuck Cunningham discusses Vintage flying scaled-down wet-powered Rudder Bug using Cox Fail Safe rudder-only radio radio operating old 27 mHz band becoming popular E-fliers small rudder-only Electrics fact Ive just recent ly purchased such application know used SEFLI group Long Island Anyway Chuck comments flying CB band now seems possible againwith safety has experience well having recently flying Electrified Wave Hitec Shredder pictured January 1993 column Also several Cox radios used recent KRC meet several folks flew 27 mHz band other radio equipment 92 Labor Day Vintage Reunion Selinsgrove Pennsylva alaall no known interference prob lems Think about course RCM issue offers Silent Power column written friend Ted Davey DSC fame mention last cause really needs no mention butjust caseI want Ted remain friend Several columns recent past have included discussions computers modeling general E-modeling particular few examples add growing list First something especially forE-fliers Ken Myers Walled Lake Michigan active E-flier editor Ampeer newsletter Electric Flyers Only Inc club Ken has developed computer program designed evaluate motor/battery/plane configurations can get copy own use sending Ken $750 can supply program Apple II format MS DOS either 35-in 525-in disks order MS-DOS version also need let Ken know version BASIC running Ive playing program having lot fun Incidentally EFO has about 30 active members mails out about 160 newsletters month because great newsletter demand can subscribe Ampeer $10 year $17 outside USalso writing Ken com plete address 1911 Bradshaw Ct Walled Lake MI 48390 Dont forget tell Ken Bob sent ya Another program interest modelers presented December issue RCM Create Computerized Magazine Article Index authors Dave Garwood Jim Harrigan present program keep track magazine articlessomething wish available last 40 years program called MAG-TRACK written BASIC designed allow search infor mation author title subject can manually copy listing given article buy disk IBM-PC/compatible machines $5 $7 525-in 35-in disks respectively sounds good just sent Jim Harrigan 103 Highland Ave Rensselaer NY 12144-1006 Finally Ive playing two model ing programs C&J Microsystems called WingDesigner EditFoil As titles suggest can design everything except fuselage newest Electric wetyuk design wing-design program will allow print plot working drawings upon build almost kind wing outline including tapered swept planforms Also can plot rib outlines including spar notches etc Dont worry intended design large wont fit printer paper program allows print multiple spans fractional chords can taped together Also can save design disk have professionally plotted commercial printer Okay folks need now fuselage design programand computer-controlled robotized android builder could also pressed mow lawns between crashes Some photos month detail several motor mounting methods First up new product Stitzer Model Designthe Aero-Vee mount formed-aluminum mount available two sizes up 15-size motors other up 40-size motors designed mounting against firewall former motor held mount draw straps made tie-wraps yellow inner rods Gold-N-Rods similar productsthe same technique introduced column several years ago modeler behind design Sam Stitzer regular KRC Electric Fly attendee years can write Sam Stitzer Model Design 113 William St Centre Hall PA 16828 Having just referenced own Gold-NRod technique see MA July 87 variation photo illustrates reinforced version designed friend Bob Afflerback uses braided metal cable threaded couplers soldered ends real ly put bite large motor installations Bob rests motor beams allmetal wet power plant mount shown beams first modified slightly inside taper better match shape round motor housingeasily done file threaded ends cable pass through holes beams tightened nuts lock washers bottom beams Note pieces Gold-N-Rod inners slipped over cable top motor done before threaded ends soldered think approach would hold automobile starter Incidentally Bob Beth Afflerback n kids have also regular attendees KRC meet years past Bob has written several articles columns Flying Models might want look feature coverage 92 KRC meet early 93 issue Model Builder magazine 162 Model Aviation REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE Finally Ive also trying new motor mounting variation approach useful possible desirable use draw screws pull down GoldN-Rod straps Such might case simply dont want exposed hardware bottom sleek new fuselage So far Ive used technique great success both 50-watt Hi Line 50 100-watt Great Planes Thrustmaster motors see no reason could applied much higher power installations intend just upcoming months Fabricating assembling new mount relatively easy still based ply baseplate usually /s-in thick made part model structure wooden V motor rest block fit between motor Whats basically new hardware As shown photos make motor draw straps -in-wide 0016-in K&S brass strip material readily available hobby shops end strap necked down just under /s-in wide length about /o Ive found easy nibbling tool two narrowed ends bent back formed main strap pictured short length about 1/2 /8-in inside square K&S brass tube slipped over J-formed strap ends Finally 2-56 draw screw small washer under head dropped through square tubing top side shown Thus bent-back strap end captured between inside side wall square tube screw Whats important tube must slightly longer bent-back strap ends screw washer bears down tube end strap end tube turn bears down latter bottom J motor nested suitably sized wooden V-block preformed U-shaped brass straps dropped over motor draw screws turned 2-56 blind mounting nuts installed baseplate bottom Incidentally finished wooden V motor rest should have pieces A6 x /2-in single-sided foam tape sloped sides better nest round motor housing add some friction latter Adhere sticky wood motor course formed brass strap length must such very ends J ends touch base mounting plate preclude proper tightening draw straps against motor Also advisable make V-block no wider outside diameter motor locate blind nuts baseplate spaced straps snug against V-block outer edgesie straps come straight down motor above Finally prefer use socket-head screws hex driver tighten screws easily Let know works out past readers wrote tell well Gold-N-Rod approach worked Ive seen such installations show up KRC over years Maybe variant will also catch Speed controls regular readers know have occupied much space within column part because own intense personal interest associated problems can occur Also over years Ive opportunity examine use brands though well design build own controls scratch As result extensive experience both bench air both important Ive compiled own criteria speed control selection since get letters subject thought would make good column topic Firstexcept noted belowany speed control use must optically coupled Simply put refuse use anything less see absolutely no reason set myself up potential radio interference problems glitching can easily occur hardwired controls-especially larger power systems Yes like some too have some nonisolated installations past worked pretty good time Now however feel less-than-the-best performance simply no longer necessary acceptable given proliferation good optically coupled designs Almost manufacturers now offer optical coupling way gowith some product exceptions may include specialty controls low-cell-count low-power systems Next application exception speed controls personal use must high-rate design Again given proliferation good speed controls market no longer reason accept relative inefficiency frame-rate designs case might use frame-rate design on-off switch ie in-between speeds application good use old speed controls cant bring myself throw away some modelers however tough decision may remain lone frame-rate tough choice know Futaba Electric receiver/speed control combination six- seven-cell power systems product works very well overall Ive seen flown Because BEC design simple lightweight installation minimum wiring possible receiver uses motor battery source power separate radio battery needed have use myself admire product often recommend beginning E-modelers reasons given above Nowif Futaba would upgrade high-rate design Futaba would upgrade more-than-seven-cell design Hint also look subtle characteristics speed control example prefer use control permits momentary motor burst either receiver arming switch turned off Also PRECISION MODEL PRODUCTS zZI4jas Made uSA t. BARSTOCK ALUMINUM SPINNERS RetailApprox Part No SizePriceWeight fl150B .. 1112 $1495 58 fl175B 14 5 95 oz TT-200B 1895 00 oz TT225B .. 21/4 5 80 oz TT226B .. 21/4 FAt . 2195 50 oz TT250-B /2 5 90 oz TT251B . 2112FAt 395 70 0z fl275B 14 5 20 oz TT276B .. 23/4 IFAtI 895 00 oz T1300B 3095 80 oz TT301B FAt 50 oz tT325B .. 3114 5 40 07 TT350B .. 3112 5 70 fl375B .. 33/4 5 20 fl400B 7995 70 07 3 Pieces Cone Back Ptate Retainer Screw Note 3 4 Blade Spinners Available Att Sizes Add $300 Per Spinner RetailApprox Part No SizePriceWeight TT140A .. 1/428 . $595 . 061or TT147A 428/7mm595061or TT610A .. 6 x 10mm 595 07 TT710A .. 7 x 10mm59508207 TT-516-A .. 5/1624 59507607 1T518A .. 5/1624/8mm59507607 TT810A Ox 10mm5950 7607 TT825A Ox 125mm5950 7507 TT375-A 3/824 117or TT-125-A lOx 125mm695115or 3 Pieces Nut Washer aird Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 April 1993 163 PROP NUT ADAPTORS V prefer use controls can allow sustained comes stays motor operation absence signal such receiver transmitter offa safety consideration Additionally prefer control has slightly slowed response mean prefer speed controls instantly respond stick motion rather lag behind littlesorta like servo requires some time transit kind operation permits model fly through momentary glitch opportunities noticeable motor speed reaction Finally some speed controls have poor line rejectionas follows Whenever servo moved receiver battery voltage may also move little depending battery condition wiring loss etc Some speed controls react line motion motor speed may fluctuate often noticeable lower throttle settings can occur near full throttle poorly designed controls Next time youre considering new speed control take look whats use field apply guidelines abovealong price availability considerationsto make best choice urge choose speed control meets important criteria dont too concerned about subtle issues depending feel fly happily quietly ever after Several small items topical interest have accumulated desk over time Ive decided collect tidbits sharing now First E-fliers also active amateur radio operators Im told Electric-oriented activity 7243 kHz Friday mornings 1000 ET can join AA4L Bob W2NDY John WA4ZDK Jim discuss favorite Electric subjects Incidentally AA4L other Bob Johnson gentleman told us help reduce motor glitching toroids motor leads August91 issue RIC Report Next its becoming increasingly clear year Electric Scale growing popularitynot just sheer numbers quality models size power systems well rather dramatically demonstrated KRC 92 fact Im beginning wonder Electric scale will soon grow dominate application Electric powerreplacing gliders-only image Electrics early years Anyway years KRC Best Scale award went Steven Stratt New York stunning Sopwith Swallow Steven man contact youre interested highly documented plans pix etc scale models days long gone can supply remarkable info package entitled Fabulous Planes Plans Aerodrome $10 plus $290 first-class postage historical album/documentary kit impressive collection actual photos plans listings whats available serious Electric historic scale modeler address Aerodrome PO Box 1425 FDR Station New York NY 10150 tell Steven Bob sent ya Finally since Electric motor mounts discussed earlier column cant help get chuckle out some wet mount advertising thats evolving recent years Have noticed antivibration how-tos products have popped up What Did someone just finally realize wet engines like shake rattle roll Closely akin topic mufflers seems no shortage how-tos productsfor Im thankful Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now arent glad fly Electric no-noise no-vibration nononsense power modeldoms future So ends yet column Thank continuing support nice comments what Im trying monthit makes monthly effort worthwhile fun case youre wondering March column did appear due flyby sorts getting column together Now know letters turn column first month its absence may have noticed some being case suggested expanded-length format month folks MA guess used words like reader uprising revolt revenge violence terrorist activity bombing etc convinced OkayI am exaggerating Anyway well try hard keep future columns sound steady years past Ive got lots lots good stuff share upcoming issues often find myself cant-walt state mind get print course direct result folks letters continuing supportas above Its selffeeding folks Thank again Okay its time think upbeat live areas experience real winterthink spring time get spring too awfully far away Please sure enclose SASE correspondence youd like reply Happy Quiet Landings Everyone cale/Troy Continued page 89 Lou Oskowski Douglas A-26 Invader bomber has long aeromodeling s favorite twin-engine subjects Lou Oskowskis outstanding 10-foot rendition best Ive seen long time Its /7-scale model Gerrard retracts its powered two 164 Model Aviation PING & HANDLING UPS Ground continental us $495 UPS Air & Parcel Post $495 plus 10% Subtotal Continental US UPS Nest Day Air $1400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal U S Mail $495 plus 10% Subtotal