MAY 2 AND 3 years dates Sixth Annual Current News Challenge Electric meet sponsored Winston-Salem RC Club year Contest Director CD Charlie Spear will recognize Charlies name co-author monthly Electric column RC Report magazine meet dates significant departure mid-August timing has characterized former schedules Charlie tells us modification bowing pressure Yankee friends void some heat Southern summer Bridgema Neu Perrin 1992 US F3E team will wearing emblem Wand Championships Hoi iand coming August Brian Chan chair man F3E Team Fund Raising Commit tee invites everyone support team buying raft tickets merchandise now ing donated modeiing industry Raffle tickets wiii avaliabie after aii donations taiiied Right now can heip pur chasing team T-shirt patch pin re spectiveiy $12 $5 $3 Send payment US Eiectrtc Flight Team 20 Lemon Ct Hilisborough CA 94010-6214 new Electrics may first sight NI-Cd battery ceiis represent ative ceiis various size capacity usuaiiy pre-assembied ready-made battery packs can aiso buiid own pack individuai celia ceiis positive insi end bump fiat surface negative Some celia come pre attached soidering iugs Some have descriptive info piastic outer insuiating wrapper Pic tured 800 900 1200 1700 mAh ceiis Au photos author Anyway addition prizes Scale events 610 618 Meet location Beauty Most Impressive All-Up/Last- Thrift Field Advance North Carolina Down awards available AMA full particulars can obtained 84 Model Aviation Electrics Bob Kopski 25 West End Dr Lansdale PA 19440 THIS MONTHS TOPICS 1 Meet announce mentsAdvance NC Kent WA 2 American F3E effort 3 Batteries charg ing beginners individusi ceiis building blocks battery battery interconnection ceii Shown 2- 4- 6- 7- 18-ceii batteries motor batteries have ceils wired series per text packs shown homemade except Astro pack close-up photo homemade seven-cell 1700 mAh nickel-cadmium Ni-Cd motor bat tery pack showing positive tive rconnection cells known series wiring Overall pack has two output terminalsin case two wires wire positive other negative Voltage outputs sum individual cell voltages 7 x 12 olts nominal pack capacity same individual cells 17 Ah writing Charlie Spear 288 Holly Ln Mocksville NC 27828 Next up Tenth Annual Electric RC Fly-In sponsored Puget Sound Electric Model Flyers June 27-28 PSEMF home field Model Builders Electric columnist Mitch Poling although Mitch presently writing temporary location Germany Anyway CD Bernard Cawley tells years meet has Schematic Symbols Cell Two Cells series connected Multi-Cells series connected Pictorial Symbols -LIlY -IZITLZIITypical wiring symbois used depict batteries ceil interconnections may see time time various articies about Electrica weii other RC articles prizes trophies Most Aerobatic Best Scale Longest Flight Most Impressive Best Multi-Motor seeking true competition will AMA 609 event Thats CD will also awarding discretionary Special Achievement awards location fun Boeing Kent Space Center Field Kent Washington can get specifics contacting Bernard Cawley 29838 48th Ave S Auburn WA 98001 telephone 206 839-9157 Assistant CD Ben Almojuela 1941 6th Ave W Seattle WA 98119 telephone 206 283-3407 contact Charlie Bernard Ben please tell em Bob sent ya 1992 Olympics just days away wrote column Olympics events will history issue received However theres another world-class event just ahead should special interest readers columnthe 1992 FM F3E World Championships coming August Continued page 174 May 1992 85 NI-Cd motor battery iuei tank heavy relatively speaking 1 8-cell 12 Ah pack weighs little over 2 ib seen digital scaic Kopakis cobait 40powered acrobatIc ship piane weighs 5 ib 8 oz motor battery typicaiiy 30 40% finished weight Eiectrics C-130 HERKY-BIRD 130118 Wingspan515 Wing area 87 272aq 752aq Wing load 335 oz 33 oz natruction manual included PLANS 3 sh $48 $68 115 scale nacelles available plans include model specs weight schedule scale source information experienced 645 5058 sq PLANS 4 sh Canopy air intakes & access Rolled & postpaid IUSAby PALMER PLANS 21 0-1/2 EL CAMINO DR Dept C BEVERLY HILLS CA 90212 310 274-2456 A-26BINVADER Scale112 Wingspan Wing area 70 5405 sq Wing loading229 twin 25s instruction Manual Included PLANS 4 sh$58 Fiberglass cowls svaliable SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS mrnruV OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/ 2A TEXACO PLAYBOY SR KIT 112A 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 & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS down side though 10/Ss performance doesnt produce much way coefficient lift therefore isnt airfoil would want use model designed light lift conditions however have abundant lift might consider using airfoil next design elicopters/Jolly Continued page 83 Honestly am amazed smooth gear train example Everything tight isnt slop anywhere Helicopter truly high quality machine Its going next weekend before can fly Alpha II please come back next month Ill let know what find Besides want try couple sets blades will give opportunity put few gallons through Alpha before wrap up Robert Teoh Goes Home just heard Tom Dooley during conversation told well known Heli-flier collector around nice guy Robert Teoh will leaving Atlanta area will returning come country Malaysia know Roberts friends will join wishing Robert fond farewell Good luck Robert hope able continue favorite hobby back home think bad day department called Dan Melnik Vertical Flight Technologies other night order some new FAI carbon blades seemed little down asked what bothering him Well hasnt great year Dan seems Tangerine lost number ship during practice day before contest During contest stretched auto farther Kalt wanted go awful boom strike last weekend went down Ernie Hubers Fun Fly new ship Everything going well lot swell people getting some flying Dan mid aired Miniature Aircraft X-Cell 40 wiping out both ships Unbeknownst Dan two werent casualties Some poor guy hovering near pits lost ship piece mid aired ships went through rotor disc predictable results Some days just doesnt pay get up Hirobo Vertol Ive working Hirobo Vertol tandem ship have truly satisfied anybody out really flying circuits general has successful Helicopter please contact Id love publish findings BCNU RC Electrics/Kopski Continued page 85 United States Electric Team will seek claim F3E Gold Holland year US represented team Jerry Bridgeman Steve Neu Jasin Perrin Ive met Steve January 1992 MA have corresponded both him Jasin Perrin can tell guys serious say because along hundreds witnessed spectacular F3E demonstration Steve put KRC 1991 performance nothing routine about clearly convinced present lots special effort dedication went both plane pilot performance-polishing Following dazzling demonstration members KRC wasted no time committing support F3E team Im well aware readers both familiar much interested personally participating F3E Nor Ihistorically after seeing Steve planes cant help feel supportive pursuit despite limited popular interest International Electric competition relatively new American modelers past attempts arena have fallen short 174 Model Aviation 1/4 Scale Wingspan Wing area Wing loading 338oz OUR 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 full success However thrust continues Im believe team attempt gold good us just E-fliers just modelers usas Americanjust like Olympics Next month Ill have some descriptive information regarding nature F3E flying Meanwhile Id like suggest and/or club might want consider offering some support Electric team team relies heavily industry other support can help share did KRC mailing contribution US Electric Flight Team 20 Lemon Ct Hillsborough CA 94010-6241 write tell em Bob sent topic unceasing reader inquiry dual subject motor batteries charging think Electric columnist has covered aspects combined subject often anything else What see continual growth Electric general column readership particular some topics previously coveredlike onemust periodically revisited month offers some topical info especially new entrant fun world Electrics experienced E-fliers among us may find bit boring begin nickel-cadmium motor batteries indeed batteries made up individual cells cell basic building block its characteristics alone determine basic characteristics total battery pack thinks battery fuel tank sorts cell capacity number cells fully describe energy storage capability tank Cell battery size capacity expressed ounces like wet fuel tank rather current X time number expression represents what cell battery cells nominally capable storing delivering Thus cells have ampere-hours milliampere-hours ampere-minutes milliampere-minutes capacity terms fully interchangeable provided appropriate scale factor also used easy way think cell capacity nominal time needed fully charge fully discharge cell ampere current proper correct ampere rarely experienced Electric applications Thus its really practical view cell capacity generalized way total product current X time ncrease decrease either term other adjusts appropriately downward upward respectively keep final value constant Think filling emptying water bottle Either action takes longer trickle low current pouring dumping high current case bottle size bottle size does change Popular Electric cell sizes capacities include limited 900 1200 milliampere-hours mAh two examples could just well have expressed 09 12 ampere-hours respectively term milli means 1/1000 50 12 Ah equals 1200 mAh Similarly 1 2-Ah cell battery could also described 72 ampereminute cell battery follows AC ff7L1k1 Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 May1992 175 Obechi Large Sheets Please call 404 642-0645 send SASE #7 Creekpark Ct Roswell GA 30076 ADVANCED AERO PRODUCTS YS & OS SPASS 120 rwv EXHAuST SYSTEMS POR PATTERN AIRCRAFT AND ULTIMATE WE SIUCONE COUPLERS AND TAIl PIPES ALSO AVAILABLE GML O TF WORAATN OAI OJWES ffiTO RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 * Internal over-voltage protection * Diode battery protection * 4-cell nicad operation fact 60 minutes hour 12 ampere-hours times 60 minutes per hour equals 72 ampereminutes An O9-Ah pack could described 54 Am some convenience describing capacity minutes descriptor will see some typical Electric modeling examples above ideas Consider motor drawing 20 amps 1 2-Ah packa perfectly reasonable condition fully charged 1200 milliampere-hour battery would run motor 12 Its EasyTo SiN1 Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column Mode/A vat/on Nov 90 Easy assemble battery starter PATENT PENDING See ACE R/C dealer send check money order KRANKING Safety Starters PO Box 2563 Beaumont Texas 77704 Add $700 packaging shipping UPS Texas rosideeto add 825% sales tax Allow approximately two weeks delivery Ah/20 amps hours Since 60 minutes hour would translate 006 x 60 36 minutes Since 60 seconds minute turn translates 3 mm 36 sec As another example consider recharging same pack Lets say charger delivers steady 4 amps charge current Thus pack would reach nominal full charge 12 Ah/4 amps ours As above translates 18 minutes Throughout above discussions have used word nominal several times because example nominal named label cell capacity hardly ever experienced exactly Thus typical 1200mAh cell will display just about capacity Actual capacity has some variability due manufacturing tolerances also due usage parameters example fully charged pack will display apparent capacity low discharge current high discharge PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Unsurpasr IA current Also fully charged may really achieved somewhat charging predicted label size actual practice variations rather small careful observation will reveal existence feel compelled warn such cell has two terminalsone end physical cell designated named positive negative usual appearance positive terminal centered raised bump cell end usual appearance negative terminal simply flat surface cell may may also have or s stamped cell ends printed cell label motor batteries always have cells wired series means positive terminal cell connected negative terminal next overall pack winds up positive negative output terminal series connection cells results overall battery output voltage being sum individual cells 176 Model Aviation REICHMUTH eledronic advance has no moving parts advance totally controlled engine speed Engines require no modificeation Zenoahs Quadras INSTABLOCK fast simple way convert engine BEFORE buy.ask. Does ignition have * Electronic automatic advance * Regulated power supply PRICES lees battery/spark plug Single cylinder$107 Twin cylinder$134 Inatablock pre-mounted w/syatem$16 Instablock w/sensors mounted 2nd engine$32 Stitt 480 1/4x32 sparkplug$10 NGK ME8 1/4x32 sparkplug -$13 NGK 10mm sparkplug$3 Shipping handling$4 COD$4 2nd day air add$3 Performance WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No 324 SEND $100 FOR PRICE LIST AND CATALOG 7ffrebun RIC 1db-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-Idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 151 ca * Wayne NJ 07470 number cells has no effect whatsoever battery capacity However direcfly affects total stored energy will seen later because same charge discharge currents flow equally through cells same time no matter should clear cells pack must always same size Thus example 12 Ah 09 Ah sizes described above never mixed within pack Battery charging has evolved range techniques preferences chargers market designed operate different ways accomplish charging task As generalization model motor flight batteries can charged appropriate current usually about 15 mm little fact chargers include timer-switches can set particular time interval use myself other chargers however have no timers instead use sophisticated charge-termination techniques rely certain battery characteristics signal charger electronics stop charging process pack full Both voltagepeak techniques thermal-detection schemes used former being popular case should clear 15-mm charging lot different familiar overnight variety routinely used charge radio transmitter receiver battery packs Its experience timercontrolled charger fully practical device used properly peakdetector kind will usually provide somewhat flight time properly mean setting charge current value such chargers 15-mm timer will allow pack almost filled assuming pack empty begin Lets look little moresince ask consider packs empty otherwise very flyable plane wont fly means flight goes will point model will sink despite fact prop may still turning battery pack voltage has dropped level rpm insufficient level flight continue empty course plane wont fly fully charged pack description non sequitur Anyway just little field experience empty condition readily recognized telltale rpm drop normal Empty means can proceed fill pack predictable way case popular 12 Ah-size packs personally charge about 45 amps 15 mm represents total charge little below label value helps assure battery does overfill Note example Ive chosen desired charge time period really charger timer has chosen adjusted current accordingly cell exact 12 Ah capacity would exactly filled 12 Ah/025 hour mp current value Id rather safe sorry hence choice 45-amp setting look flight profile graphs March April columns youll see flight times safe timed charges very comfortable occasions want fully charge motor battery Ill use peakcharger lets set forget charge conditions charger stops know Im going have full charge RC car folks have devised some techniques squeezing bit out cell performancebut thats different story altogether given flight profiles mentioned previously would peak-charge reason would flying competitive event required out pack might example All-Up/Last-Down event Another reason would experimentation dont peak-charge time thing peak-charging typically May1992 177 CatalogsThe Best Scale Best Scale$400 ASPModel aircraft Plans Handbook$500 ASPScale Drawin9 Plans Book$500 RCModel World Const Guide$600 VTHGerman Plans Book$600 Yuad add $500 7u5si je J-5 uIa~h Call 714 8853959 credit card orders BRISTOL Mib Span 1055 351 scale $3600 i-$29o pp Winners ToledoThe Masters others .Bob Holman Box 741 San Berdo CA 92402. WITH THE UP1 ADJUSTABLE SPEED RETRACT VALVE REALISTIC MOTION FROM AIR RETRACTS unique valve thatSpeed range combines up and1-20 seconds up down switching1-20 seconds down function twoConstant speed over infinitely adjustablethe 20-100 psi speed control valvesoperating range Body sizeWeight 20 gins 1 2x 75x 375 inches4 air outlets NEW Airline Introductory price $2495 US quarter turn quick-disconnects $595 US NEW NEW 150 psi rated tubing 5 fteach grey clear lOft per pack $595 US NEW NEW Airline Tee fittings2 per pack $295 US NEW Dealer inquiries welcomeShipping$450 ULTRA PRECISION Technical Services Limited 1244 Honeysuckle Crescent Oakville Ontario L6H 2S8 Canada Phone 416842 1703 takes longer like sport-flylots several planes car feel can average spend time air timed charges Besides have higher-capability chargers timercontrolled have peak-chargers clear advantage peakcharging offers general need concerned about beginning-ofcharge condition pack Thus pack can have some partial charge empty still safely charged kind charger readily possible timer-controlled charger since cannot tell sure much tank begin Therefore would know much charge could safely pumped Theres lot info share batteries charging topic will continue future columns Beginning Electric fliers may want keep installment combine future additions topical area both will have less letter writing So ends another column Please enclose SASE correspondence d like reply Happy Quiet Electric Landings Everyone RC AerobaticsNan Putte Continued page 86 both indiscretions deserve should awarded scores zero plan use 150 rule Interest Senior Pattern Association SPA really taking off seems get letter phone call nearly day subject Before go further let defuse few comments Ive received Apparently some people think SPA group fliers trying escape Turnaround competition todays airplanes engines Everyone Ive talked corresponded about SPA excited about because airplanes simpler gives participants great nostalgic feeling SPA advocating anything other having fun some pre-1970 airplanes vintage maneuver schedules Anyone thinks SPA wants away Turnaround todays competition airplanes engines misinformed started looking around airplanes suitable SPA chances finding old kits seemed pretty grim did find Taurus kit line few others before deciding build A-6 Intruder assume people will same situation start looking something build Let give people hand problem mail has recently included opportunities obtaining plans kits SPA-eligible airplanes first listings received Bill LaRue Classic Air Models Co PO Box 784 Fruitland Pafk FL 34731 Tel 904/7877475 Bill sent lists Control Line Radio Control airplane kits available permission originators reproductions original kits plans wrote told Bill wasnt interested CL kits RC airplane list looks great list includes Citron Daddy Rabbit El Gringo Stormer Flat Top Stormer Sweet Tater Taurus Tiger Tail Kwik Fli Candy Phoenix Thunderstormer A-6 Intruder Pattern airplanes name afew Kit prices vary slightly range o1~ NEW MicroJet Package TO BUILD FAN POWER MODULE Entire module meighs lust 26 grams 05e ounce thrust FIies modets 60 90 in2 & up 3 ounces Peckage includes motor 3o5gmatt NtCd battery wiring haroess charger parts comptete instructions build tan unit Send SI $1995 P&H In Cataleg 178 Model Aviation nee SC PLANE VIDEO GIVES YOU LIBRARY 01 VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS BUILDING IT RIGHT ThE FIRST TIME 2-2 HOIJR VIDEOS SHOWING ALL DETAilS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUDING WING CONSTRUCTION RADIO INSTALLATION PUSIIRODS ALIGNMENT SALANCING ANI MUCH MORE *3495 shippIng 6800 foreign orders AEROBAliCS & GROUND SCHOOl 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKE -OPUS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE *1905 sNpping *600 foreign ordem BUILDING WITH FOAM 2-HOUR VIDEO PROVIDING INFORMATION ON FOAM WING CORES INSTALLING RETRACTS PRIMING COVERING WITH EG CLOTH PAINTING & DETAILING *1995 shippIng *600 foreign orders TAPES AVAILABLE N I/U-IS ONLY SEND CHECK OR MO TO PLANE VIDEO PD BOX 23126 dIVE IA 50325 CALL 1-800-383-8251 OR etecoi 515-2230807 34 HOUR TOLL FREE
Edition: Model Aviation - 1992/05
Page Numbers: 84, 85, 174, 175, 176, 177, 178
MAY 2 AND 3 years dates Sixth Annual Current News Challenge Electric meet sponsored Winston-Salem RC Club year Contest Director CD Charlie Spear will recognize Charlies name co-author monthly Electric column RC Report magazine meet dates significant departure mid-August timing has characterized former schedules Charlie tells us modification bowing pressure Yankee friends void some heat Southern summer Bridgema Neu Perrin 1992 US F3E team will wearing emblem Wand Championships Hoi iand coming August Brian Chan chair man F3E Team Fund Raising Commit tee invites everyone support team buying raft tickets merchandise now ing donated modeiing industry Raffle tickets wiii avaliabie after aii donations taiiied Right now can heip pur chasing team T-shirt patch pin re spectiveiy $12 $5 $3 Send payment US Eiectrtc Flight Team 20 Lemon Ct Hilisborough CA 94010-6214 new Electrics may first sight NI-Cd battery ceiis represent ative ceiis various size capacity usuaiiy pre-assembied ready-made battery packs can aiso buiid own pack individuai celia ceiis positive insi end bump fiat surface negative Some celia come pre attached soidering iugs Some have descriptive info piastic outer insuiating wrapper Pic tured 800 900 1200 1700 mAh ceiis Au photos author Anyway addition prizes Scale events 610 618 Meet location Beauty Most Impressive All-Up/Last- Thrift Field Advance North Carolina Down awards available AMA full particulars can obtained 84 Model Aviation Electrics Bob Kopski 25 West End Dr Lansdale PA 19440 THIS MONTHS TOPICS 1 Meet announce mentsAdvance NC Kent WA 2 American F3E effort 3 Batteries charg ing beginners individusi ceiis building blocks battery battery interconnection ceii Shown 2- 4- 6- 7- 18-ceii batteries motor batteries have ceils wired series per text packs shown homemade except Astro pack close-up photo homemade seven-cell 1700 mAh nickel-cadmium Ni-Cd motor bat tery pack showing positive tive rconnection cells known series wiring Overall pack has two output terminalsin case two wires wire positive other negative Voltage outputs sum individual cell voltages 7 x 12 olts nominal pack capacity same individual cells 17 Ah writing Charlie Spear 288 Holly Ln Mocksville NC 27828 Next up Tenth Annual Electric RC Fly-In sponsored Puget Sound Electric Model Flyers June 27-28 PSEMF home field Model Builders Electric columnist Mitch Poling although Mitch presently writing temporary location Germany Anyway CD Bernard Cawley tells years meet has Schematic Symbols Cell Two Cells series connected Multi-Cells series connected Pictorial Symbols -LIlY -IZITLZIITypical wiring symbois used depict batteries ceil interconnections may see time time various articies about Electrica weii other RC articles prizes trophies Most Aerobatic Best Scale Longest Flight Most Impressive Best Multi-Motor seeking true competition will AMA 609 event Thats CD will also awarding discretionary Special Achievement awards location fun Boeing Kent Space Center Field Kent Washington can get specifics contacting Bernard Cawley 29838 48th Ave S Auburn WA 98001 telephone 206 839-9157 Assistant CD Ben Almojuela 1941 6th Ave W Seattle WA 98119 telephone 206 283-3407 contact Charlie Bernard Ben please tell em Bob sent ya 1992 Olympics just days away wrote column Olympics events will history issue received However theres another world-class event just ahead should special interest readers columnthe 1992 FM F3E World Championships coming August Continued page 174 May 1992 85 NI-Cd motor battery iuei tank heavy relatively speaking 1 8-cell 12 Ah pack weighs little over 2 ib seen digital scaic Kopakis cobait 40powered acrobatIc ship piane weighs 5 ib 8 oz motor battery typicaiiy 30 40% finished weight Eiectrics C-130 HERKY-BIRD 130118 Wingspan515 Wing area 87 272aq 752aq Wing load 335 oz 33 oz natruction manual included PLANS 3 sh $48 $68 115 scale nacelles available plans include model specs weight schedule scale source information experienced 645 5058 sq PLANS 4 sh Canopy air intakes & access Rolled & postpaid IUSAby PALMER PLANS 21 0-1/2 EL CAMINO DR Dept C BEVERLY HILLS CA 90212 310 274-2456 A-26BINVADER Scale112 Wingspan Wing area 70 5405 sq Wing loading229 twin 25s instruction Manual Included PLANS 4 sh$58 Fiberglass cowls svaliable SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS mrnruV OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/ 2A TEXACO PLAYBOY SR KIT 112A 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 & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS down side though 10/Ss performance doesnt produce much way coefficient lift therefore isnt airfoil would want use model designed light lift conditions however have abundant lift might consider using airfoil next design elicopters/Jolly Continued page 83 Honestly am amazed smooth gear train example Everything tight isnt slop anywhere Helicopter truly high quality machine Its going next weekend before can fly Alpha II please come back next month Ill let know what find Besides want try couple sets blades will give opportunity put few gallons through Alpha before wrap up Robert Teoh Goes Home just heard Tom Dooley during conversation told well known Heli-flier collector around nice guy Robert Teoh will leaving Atlanta area will returning come country Malaysia know Roberts friends will join wishing Robert fond farewell Good luck Robert hope able continue favorite hobby back home think bad day department called Dan Melnik Vertical Flight Technologies other night order some new FAI carbon blades seemed little down asked what bothering him Well hasnt great year Dan seems Tangerine lost number ship during practice day before contest During contest stretched auto farther Kalt wanted go awful boom strike last weekend went down Ernie Hubers Fun Fly new ship Everything going well lot swell people getting some flying Dan mid aired Miniature Aircraft X-Cell 40 wiping out both ships Unbeknownst Dan two werent casualties Some poor guy hovering near pits lost ship piece mid aired ships went through rotor disc predictable results Some days just doesnt pay get up Hirobo Vertol Ive working Hirobo Vertol tandem ship have truly satisfied anybody out really flying circuits general has successful Helicopter please contact Id love publish findings BCNU RC Electrics/Kopski Continued page 85 United States Electric Team will seek claim F3E Gold Holland year US represented team Jerry Bridgeman Steve Neu Jasin Perrin Ive met Steve January 1992 MA have corresponded both him Jasin Perrin can tell guys serious say because along hundreds witnessed spectacular F3E demonstration Steve put KRC 1991 performance nothing routine about clearly convinced present lots special effort dedication went both plane pilot performance-polishing Following dazzling demonstration members KRC wasted no time committing support F3E team Im well aware readers both familiar much interested personally participating F3E Nor Ihistorically after seeing Steve planes cant help feel supportive pursuit despite limited popular interest International Electric competition relatively new American modelers past attempts arena have fallen short 174 Model Aviation 1/4 Scale Wingspan Wing area Wing loading 338oz OUR 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 full success However thrust continues Im believe team attempt gold good us just E-fliers just modelers usas Americanjust like Olympics Next month Ill have some descriptive information regarding nature F3E flying Meanwhile Id like suggest and/or club might want consider offering some support Electric team team relies heavily industry other support can help share did KRC mailing contribution US Electric Flight Team 20 Lemon Ct Hillsborough CA 94010-6241 write tell em Bob sent topic unceasing reader inquiry dual subject motor batteries charging think Electric columnist has covered aspects combined subject often anything else What see continual growth Electric general column readership particular some topics previously coveredlike onemust periodically revisited month offers some topical info especially new entrant fun world Electrics experienced E-fliers among us may find bit boring begin nickel-cadmium motor batteries indeed batteries made up individual cells cell basic building block its characteristics alone determine basic characteristics total battery pack thinks battery fuel tank sorts cell capacity number cells fully describe energy storage capability tank Cell battery size capacity expressed ounces like wet fuel tank rather current X time number expression represents what cell battery cells nominally capable storing delivering Thus cells have ampere-hours milliampere-hours ampere-minutes milliampere-minutes capacity terms fully interchangeable provided appropriate scale factor also used easy way think cell capacity nominal time needed fully charge fully discharge cell ampere current proper correct ampere rarely experienced Electric applications Thus its really practical view cell capacity generalized way total product current X time ncrease decrease either term other adjusts appropriately downward upward respectively keep final value constant Think filling emptying water bottle Either action takes longer trickle low current pouring dumping high current case bottle size bottle size does change Popular Electric cell sizes capacities include limited 900 1200 milliampere-hours mAh two examples could just well have expressed 09 12 ampere-hours respectively term milli means 1/1000 50 12 Ah equals 1200 mAh Similarly 1 2-Ah cell battery could also described 72 ampereminute cell battery follows AC ff7L1k1 Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 May1992 175 Obechi Large Sheets Please call 404 642-0645 send SASE #7 Creekpark Ct Roswell GA 30076 ADVANCED AERO PRODUCTS YS & OS SPASS 120 rwv EXHAuST SYSTEMS POR PATTERN AIRCRAFT AND ULTIMATE WE SIUCONE COUPLERS AND TAIl PIPES ALSO AVAILABLE GML O TF WORAATN OAI OJWES ffiTO RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 * Internal over-voltage protection * Diode battery protection * 4-cell nicad operation fact 60 minutes hour 12 ampere-hours times 60 minutes per hour equals 72 ampereminutes An O9-Ah pack could described 54 Am some convenience describing capacity minutes descriptor will see some typical Electric modeling examples above ideas Consider motor drawing 20 amps 1 2-Ah packa perfectly reasonable condition fully charged 1200 milliampere-hour battery would run motor 12 Its EasyTo SiN1 Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column Mode/A vat/on Nov 90 Easy assemble battery starter PATENT PENDING See ACE R/C dealer send check money order KRANKING Safety Starters PO Box 2563 Beaumont Texas 77704 Add $700 packaging shipping UPS Texas rosideeto add 825% sales tax Allow approximately two weeks delivery Ah/20 amps hours Since 60 minutes hour would translate 006 x 60 36 minutes Since 60 seconds minute turn translates 3 mm 36 sec As another example consider recharging same pack Lets say charger delivers steady 4 amps charge current Thus pack would reach nominal full charge 12 Ah/4 amps ours As above translates 18 minutes Throughout above discussions have used word nominal several times because example nominal named label cell capacity hardly ever experienced exactly Thus typical 1200mAh cell will display just about capacity Actual capacity has some variability due manufacturing tolerances also due usage parameters example fully charged pack will display apparent capacity low discharge current high discharge PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Unsurpasr IA current Also fully charged may really achieved somewhat charging predicted label size actual practice variations rather small careful observation will reveal existence feel compelled warn such cell has two terminalsone end physical cell designated named positive negative usual appearance positive terminal centered raised bump cell end usual appearance negative terminal simply flat surface cell may may also have or s stamped cell ends printed cell label motor batteries always have cells wired series means positive terminal cell connected negative terminal next overall pack winds up positive negative output terminal series connection cells results overall battery output voltage being sum individual cells 176 Model Aviation REICHMUTH eledronic advance has no moving parts advance totally controlled engine speed Engines require no modificeation Zenoahs Quadras INSTABLOCK fast simple way convert engine BEFORE buy.ask. Does ignition have * Electronic automatic advance * Regulated power supply PRICES lees battery/spark plug Single cylinder$107 Twin cylinder$134 Inatablock pre-mounted w/syatem$16 Instablock w/sensors mounted 2nd engine$32 Stitt 480 1/4x32 sparkplug$10 NGK ME8 1/4x32 sparkplug -$13 NGK 10mm sparkplug$3 Shipping handling$4 COD$4 2nd day air add$3 Performance WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No 324 SEND $100 FOR PRICE LIST AND CATALOG 7ffrebun RIC 1db-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-Idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 151 ca * Wayne NJ 07470 number cells has no effect whatsoever battery capacity However direcfly affects total stored energy will seen later because same charge discharge currents flow equally through cells same time no matter should clear cells pack must always same size Thus example 12 Ah 09 Ah sizes described above never mixed within pack Battery charging has evolved range techniques preferences chargers market designed operate different ways accomplish charging task As generalization model motor flight batteries can charged appropriate current usually about 15 mm little fact chargers include timer-switches can set particular time interval use myself other chargers however have no timers instead use sophisticated charge-termination techniques rely certain battery characteristics signal charger electronics stop charging process pack full Both voltagepeak techniques thermal-detection schemes used former being popular case should clear 15-mm charging lot different familiar overnight variety routinely used charge radio transmitter receiver battery packs Its experience timercontrolled charger fully practical device used properly peakdetector kind will usually provide somewhat flight time properly mean setting charge current value such chargers 15-mm timer will allow pack almost filled assuming pack empty begin Lets look little moresince ask consider packs empty otherwise very flyable plane wont fly means flight goes will point model will sink despite fact prop may still turning battery pack voltage has dropped level rpm insufficient level flight continue empty course plane wont fly fully charged pack description non sequitur Anyway just little field experience empty condition readily recognized telltale rpm drop normal Empty means can proceed fill pack predictable way case popular 12 Ah-size packs personally charge about 45 amps 15 mm represents total charge little below label value helps assure battery does overfill Note example Ive chosen desired charge time period really charger timer has chosen adjusted current accordingly cell exact 12 Ah capacity would exactly filled 12 Ah/025 hour mp current value Id rather safe sorry hence choice 45-amp setting look flight profile graphs March April columns youll see flight times safe timed charges very comfortable occasions want fully charge motor battery Ill use peakcharger lets set forget charge conditions charger stops know Im going have full charge RC car folks have devised some techniques squeezing bit out cell performancebut thats different story altogether given flight profiles mentioned previously would peak-charge reason would flying competitive event required out pack might example All-Up/Last-Down event Another reason would experimentation dont peak-charge time thing peak-charging typically May1992 177 CatalogsThe Best Scale Best Scale$400 ASPModel aircraft Plans Handbook$500 ASPScale Drawin9 Plans Book$500 RCModel World Const Guide$600 VTHGerman Plans Book$600 Yuad add $500 7u5si je J-5 uIa~h Call 714 8853959 credit card orders BRISTOL Mib Span 1055 351 scale $3600 i-$29o pp Winners ToledoThe Masters others .Bob Holman Box 741 San Berdo CA 92402. WITH THE UP1 ADJUSTABLE SPEED RETRACT VALVE REALISTIC MOTION FROM AIR RETRACTS unique valve thatSpeed range combines up and1-20 seconds up down switching1-20 seconds down function twoConstant speed over infinitely adjustablethe 20-100 psi speed control valvesoperating range Body sizeWeight 20 gins 1 2x 75x 375 inches4 air outlets NEW Airline Introductory price $2495 US quarter turn quick-disconnects $595 US NEW NEW 150 psi rated tubing 5 fteach grey clear lOft per pack $595 US NEW NEW Airline Tee fittings2 per pack $295 US NEW Dealer inquiries welcomeShipping$450 ULTRA PRECISION Technical Services Limited 1244 Honeysuckle Crescent Oakville Ontario L6H 2S8 Canada Phone 416842 1703 takes longer like sport-flylots several planes car feel can average spend time air timed charges Besides have higher-capability chargers timercontrolled have peak-chargers clear advantage peakcharging offers general need concerned about beginning-ofcharge condition pack Thus pack can have some partial charge empty still safely charged kind charger readily possible timer-controlled charger since cannot tell sure much tank begin Therefore would know much charge could safely pumped Theres lot info share batteries charging topic will continue future columns Beginning Electric fliers may want keep installment combine future additions topical area both will have less letter writing So ends another column Please enclose SASE correspondence d like reply Happy Quiet Electric Landings Everyone RC AerobaticsNan Putte Continued page 86 both indiscretions deserve should awarded scores zero plan use 150 rule Interest Senior Pattern Association SPA really taking off seems get letter phone call nearly day subject Before go further let defuse few comments Ive received Apparently some people think SPA group fliers trying escape Turnaround competition todays airplanes engines Everyone Ive talked corresponded about SPA excited about because airplanes simpler gives participants great nostalgic feeling SPA advocating anything other having fun some pre-1970 airplanes vintage maneuver schedules Anyone thinks SPA wants away Turnaround todays competition airplanes engines misinformed started looking around airplanes suitable SPA chances finding old kits seemed pretty grim did find Taurus kit line few others before deciding build A-6 Intruder assume people will same situation start looking something build Let give people hand problem mail has recently included opportunities obtaining plans kits SPA-eligible airplanes first listings received Bill LaRue Classic Air Models Co PO Box 784 Fruitland Pafk FL 34731 Tel 904/7877475 Bill sent lists Control Line Radio Control airplane kits available permission originators reproductions original kits plans wrote told Bill wasnt interested CL kits RC airplane list looks great list includes Citron Daddy Rabbit El Gringo Stormer Flat Top Stormer Sweet Tater Taurus Tiger Tail Kwik Fli Candy Phoenix Thunderstormer A-6 Intruder Pattern airplanes name afew Kit prices vary slightly range o1~ NEW MicroJet Package TO BUILD FAN POWER MODULE Entire module meighs lust 26 grams 05e ounce thrust FIies modets 60 90 in2 & up 3 ounces Peckage includes motor 3o5gmatt NtCd battery wiring haroess charger parts comptete instructions build tan unit Send SI $1995 P&H In Cataleg 178 Model Aviation nee SC PLANE VIDEO GIVES YOU LIBRARY 01 VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS BUILDING IT RIGHT ThE FIRST TIME 2-2 HOIJR VIDEOS SHOWING ALL DETAilS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUDING WING CONSTRUCTION RADIO INSTALLATION PUSIIRODS ALIGNMENT SALANCING ANI MUCH MORE *3495 shippIng 6800 foreign orders AEROBAliCS & GROUND SCHOOl 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKE -OPUS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE *1905 sNpping *600 foreign ordem BUILDING WITH FOAM 2-HOUR VIDEO PROVIDING INFORMATION ON FOAM WING CORES INSTALLING RETRACTS PRIMING COVERING WITH EG CLOTH PAINTING & DETAILING *1995 shippIng *600 foreign orders TAPES AVAILABLE N I/U-IS ONLY SEND CHECK OR MO TO PLANE VIDEO PD BOX 23126 dIVE IA 50325 CALL 1-800-383-8251 OR etecoi 515-2230807 34 HOUR TOLL FREE
Edition: Model Aviation - 1992/05
Page Numbers: 84, 85, 174, 175, 176, 177, 178
MAY 2 AND 3 years dates Sixth Annual Current News Challenge Electric meet sponsored Winston-Salem RC Club year Contest Director CD Charlie Spear will recognize Charlies name co-author monthly Electric column RC Report magazine meet dates significant departure mid-August timing has characterized former schedules Charlie tells us modification bowing pressure Yankee friends void some heat Southern summer Bridgema Neu Perrin 1992 US F3E team will wearing emblem Wand Championships Hoi iand coming August Brian Chan chair man F3E Team Fund Raising Commit tee invites everyone support team buying raft tickets merchandise now ing donated modeiing industry Raffle tickets wiii avaliabie after aii donations taiiied Right now can heip pur chasing team T-shirt patch pin re spectiveiy $12 $5 $3 Send payment US Eiectrtc Flight Team 20 Lemon Ct Hilisborough CA 94010-6214 new Electrics may first sight NI-Cd battery ceiis represent ative ceiis various size capacity usuaiiy pre-assembied ready-made battery packs can aiso buiid own pack individuai celia ceiis positive insi end bump fiat surface negative Some celia come pre attached soidering iugs Some have descriptive info piastic outer insuiating wrapper Pic tured 800 900 1200 1700 mAh ceiis Au photos author Anyway addition prizes Scale events 610 618 Meet location Beauty Most Impressive All-Up/Last- Thrift Field Advance North Carolina Down awards available AMA full particulars can obtained 84 Model Aviation Electrics Bob Kopski 25 West End Dr Lansdale PA 19440 THIS MONTHS TOPICS 1 Meet announce mentsAdvance NC Kent WA 2 American F3E effort 3 Batteries charg ing beginners individusi ceiis building blocks battery battery interconnection ceii Shown 2- 4- 6- 7- 18-ceii batteries motor batteries have ceils wired series per text packs shown homemade except Astro pack close-up photo homemade seven-cell 1700 mAh nickel-cadmium Ni-Cd motor bat tery pack showing positive tive rconnection cells known series wiring Overall pack has two output terminalsin case two wires wire positive other negative Voltage outputs sum individual cell voltages 7 x 12 olts nominal pack capacity same individual cells 17 Ah writing Charlie Spear 288 Holly Ln Mocksville NC 27828 Next up Tenth Annual Electric RC Fly-In sponsored Puget Sound Electric Model Flyers June 27-28 PSEMF home field Model Builders Electric columnist Mitch Poling although Mitch presently writing temporary location Germany Anyway CD Bernard Cawley tells years meet has Schematic Symbols Cell Two Cells series connected Multi-Cells series connected Pictorial Symbols -LIlY -IZITLZIITypical wiring symbois used depict batteries ceil interconnections may see time time various articies about Electrica weii other RC articles prizes trophies Most Aerobatic Best Scale Longest Flight Most Impressive Best Multi-Motor seeking true competition will AMA 609 event Thats CD will also awarding discretionary Special Achievement awards location fun Boeing Kent Space Center Field Kent Washington can get specifics contacting Bernard Cawley 29838 48th Ave S Auburn WA 98001 telephone 206 839-9157 Assistant CD Ben Almojuela 1941 6th Ave W Seattle WA 98119 telephone 206 283-3407 contact Charlie Bernard Ben please tell em Bob sent ya 1992 Olympics just days away wrote column Olympics events will history issue received However theres another world-class event just ahead should special interest readers columnthe 1992 FM F3E World Championships coming August Continued page 174 May 1992 85 NI-Cd motor battery iuei tank heavy relatively speaking 1 8-cell 12 Ah pack weighs little over 2 ib seen digital scaic Kopakis cobait 40powered acrobatIc ship piane weighs 5 ib 8 oz motor battery typicaiiy 30 40% finished weight Eiectrics C-130 HERKY-BIRD 130118 Wingspan515 Wing area 87 272aq 752aq Wing load 335 oz 33 oz natruction manual included PLANS 3 sh $48 $68 115 scale nacelles available plans include model specs weight schedule scale source information experienced 645 5058 sq PLANS 4 sh Canopy air intakes & access Rolled & postpaid IUSAby PALMER PLANS 21 0-1/2 EL CAMINO DR Dept C BEVERLY HILLS CA 90212 310 274-2456 A-26BINVADER Scale112 Wingspan Wing area 70 5405 sq Wing loading229 twin 25s instruction Manual Included PLANS 4 sh$58 Fiberglass cowls svaliable SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS mrnruV OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/ 2A TEXACO PLAYBOY SR KIT 112A 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 & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS down side though 10/Ss performance doesnt produce much way coefficient lift therefore isnt airfoil would want use model designed light lift conditions however have abundant lift might consider using airfoil next design elicopters/Jolly Continued page 83 Honestly am amazed smooth gear train example Everything tight isnt slop anywhere Helicopter truly high quality machine Its going next weekend before can fly Alpha II please come back next month Ill let know what find Besides want try couple sets blades will give opportunity put few gallons through Alpha before wrap up Robert Teoh Goes Home just heard Tom Dooley during conversation told well known Heli-flier collector around nice guy Robert Teoh will leaving Atlanta area will returning come country Malaysia know Roberts friends will join wishing Robert fond farewell Good luck Robert hope able continue favorite hobby back home think bad day department called Dan Melnik Vertical Flight Technologies other night order some new FAI carbon blades seemed little down asked what bothering him Well hasnt great year Dan seems Tangerine lost number ship during practice day before contest During contest stretched auto farther Kalt wanted go awful boom strike last weekend went down Ernie Hubers Fun Fly new ship Everything going well lot swell people getting some flying Dan mid aired Miniature Aircraft X-Cell 40 wiping out both ships Unbeknownst Dan two werent casualties Some poor guy hovering near pits lost ship piece mid aired ships went through rotor disc predictable results Some days just doesnt pay get up Hirobo Vertol Ive working Hirobo Vertol tandem ship have truly satisfied anybody out really flying circuits general has successful Helicopter please contact Id love publish findings BCNU RC Electrics/Kopski Continued page 85 United States Electric Team will seek claim F3E Gold Holland year US represented team Jerry Bridgeman Steve Neu Jasin Perrin Ive met Steve January 1992 MA have corresponded both him Jasin Perrin can tell guys serious say because along hundreds witnessed spectacular F3E demonstration Steve put KRC 1991 performance nothing routine about clearly convinced present lots special effort dedication went both plane pilot performance-polishing Following dazzling demonstration members KRC wasted no time committing support F3E team Im well aware readers both familiar much interested personally participating F3E Nor Ihistorically after seeing Steve planes cant help feel supportive pursuit despite limited popular interest International Electric competition relatively new American modelers past attempts arena have fallen short 174 Model Aviation 1/4 Scale Wingspan Wing area Wing loading 338oz OUR 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 full success However thrust continues Im believe team attempt gold good us just E-fliers just modelers usas Americanjust like Olympics Next month Ill have some descriptive information regarding nature F3E flying Meanwhile Id like suggest and/or club might want consider offering some support Electric team team relies heavily industry other support can help share did KRC mailing contribution US Electric Flight Team 20 Lemon Ct Hillsborough CA 94010-6241 write tell em Bob sent topic unceasing reader inquiry dual subject motor batteries charging think Electric columnist has covered aspects combined subject often anything else What see continual growth Electric general column readership particular some topics previously coveredlike onemust periodically revisited month offers some topical info especially new entrant fun world Electrics experienced E-fliers among us may find bit boring begin nickel-cadmium motor batteries indeed batteries made up individual cells cell basic building block its characteristics alone determine basic characteristics total battery pack thinks battery fuel tank sorts cell capacity number cells fully describe energy storage capability tank Cell battery size capacity expressed ounces like wet fuel tank rather current X time number expression represents what cell battery cells nominally capable storing delivering Thus cells have ampere-hours milliampere-hours ampere-minutes milliampere-minutes capacity terms fully interchangeable provided appropriate scale factor also used easy way think cell capacity nominal time needed fully charge fully discharge cell ampere current proper correct ampere rarely experienced Electric applications Thus its really practical view cell capacity generalized way total product current X time ncrease decrease either term other adjusts appropriately downward upward respectively keep final value constant Think filling emptying water bottle Either action takes longer trickle low current pouring dumping high current case bottle size bottle size does change Popular Electric cell sizes capacities include limited 900 1200 milliampere-hours mAh two examples could just well have expressed 09 12 ampere-hours respectively term milli means 1/1000 50 12 Ah equals 1200 mAh Similarly 1 2-Ah cell battery could also described 72 ampereminute cell battery follows AC ff7L1k1 Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 May1992 175 Obechi Large Sheets Please call 404 642-0645 send SASE #7 Creekpark Ct Roswell GA 30076 ADVANCED AERO PRODUCTS YS & OS SPASS 120 rwv EXHAuST SYSTEMS POR PATTERN AIRCRAFT AND ULTIMATE WE SIUCONE COUPLERS AND TAIl PIPES ALSO AVAILABLE GML O TF WORAATN OAI OJWES ffiTO RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 * Internal over-voltage protection * Diode battery protection * 4-cell nicad operation fact 60 minutes hour 12 ampere-hours times 60 minutes per hour equals 72 ampereminutes An O9-Ah pack could described 54 Am some convenience describing capacity minutes descriptor will see some typical Electric modeling examples above ideas Consider motor drawing 20 amps 1 2-Ah packa perfectly reasonable condition fully charged 1200 milliampere-hour battery would run motor 12 Its EasyTo SiN1 Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column Mode/A vat/on Nov 90 Easy assemble battery starter PATENT PENDING See ACE R/C dealer send check money order KRANKING Safety Starters PO Box 2563 Beaumont Texas 77704 Add $700 packaging shipping UPS Texas rosideeto add 825% sales tax Allow approximately two weeks delivery Ah/20 amps hours Since 60 minutes hour would translate 006 x 60 36 minutes Since 60 seconds minute turn translates 3 mm 36 sec As another example consider recharging same pack Lets say charger delivers steady 4 amps charge current Thus pack would reach nominal full charge 12 Ah/4 amps ours As above translates 18 minutes Throughout above discussions have used word nominal several times because example nominal named label cell capacity hardly ever experienced exactly Thus typical 1200mAh cell will display just about capacity Actual capacity has some variability due manufacturing tolerances also due usage parameters example fully charged pack will display apparent capacity low discharge current high discharge PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Unsurpasr IA current Also fully charged may really achieved somewhat charging predicted label size actual practice variations rather small careful observation will reveal existence feel compelled warn such cell has two terminalsone end physical cell designated named positive negative usual appearance positive terminal centered raised bump cell end usual appearance negative terminal simply flat surface cell may may also have or s stamped cell ends printed cell label motor batteries always have cells wired series means positive terminal cell connected negative terminal next overall pack winds up positive negative output terminal series connection cells results overall battery output voltage being sum individual cells 176 Model Aviation REICHMUTH eledronic advance has no moving parts advance totally controlled engine speed Engines require no modificeation Zenoahs Quadras INSTABLOCK fast simple way convert engine BEFORE buy.ask. Does ignition have * Electronic automatic advance * Regulated power supply PRICES lees battery/spark plug Single cylinder$107 Twin cylinder$134 Inatablock pre-mounted w/syatem$16 Instablock w/sensors mounted 2nd engine$32 Stitt 480 1/4x32 sparkplug$10 NGK ME8 1/4x32 sparkplug -$13 NGK 10mm sparkplug$3 Shipping handling$4 COD$4 2nd day air add$3 Performance WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No 324 SEND $100 FOR PRICE LIST AND CATALOG 7ffrebun RIC 1db-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-Idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 151 ca * Wayne NJ 07470 number cells has no effect whatsoever battery capacity However direcfly affects total stored energy will seen later because same charge discharge currents flow equally through cells same time no matter should clear cells pack must always same size Thus example 12 Ah 09 Ah sizes described above never mixed within pack Battery charging has evolved range techniques preferences chargers market designed operate different ways accomplish charging task As generalization model motor flight batteries can charged appropriate current usually about 15 mm little fact chargers include timer-switches can set particular time interval use myself other chargers however have no timers instead use sophisticated charge-termination techniques rely certain battery characteristics signal charger electronics stop charging process pack full Both voltagepeak techniques thermal-detection schemes used former being popular case should clear 15-mm charging lot different familiar overnight variety routinely used charge radio transmitter receiver battery packs Its experience timercontrolled charger fully practical device used properly peakdetector kind will usually provide somewhat flight time properly mean setting charge current value such chargers 15-mm timer will allow pack almost filled assuming pack empty begin Lets look little moresince ask consider packs empty otherwise very flyable plane wont fly means flight goes will point model will sink despite fact prop may still turning battery pack voltage has dropped level rpm insufficient level flight continue empty course plane wont fly fully charged pack description non sequitur Anyway just little field experience empty condition readily recognized telltale rpm drop normal Empty means can proceed fill pack predictable way case popular 12 Ah-size packs personally charge about 45 amps 15 mm represents total charge little below label value helps assure battery does overfill Note example Ive chosen desired charge time period really charger timer has chosen adjusted current accordingly cell exact 12 Ah capacity would exactly filled 12 Ah/025 hour mp current value Id rather safe sorry hence choice 45-amp setting look flight profile graphs March April columns youll see flight times safe timed charges very comfortable occasions want fully charge motor battery Ill use peakcharger lets set forget charge conditions charger stops know Im going have full charge RC car folks have devised some techniques squeezing bit out cell performancebut thats different story altogether given flight profiles mentioned previously would peak-charge reason would flying competitive event required out pack might example All-Up/Last-Down event Another reason would experimentation dont peak-charge time thing peak-charging typically May1992 177 CatalogsThe Best Scale Best Scale$400 ASPModel aircraft Plans Handbook$500 ASPScale Drawin9 Plans Book$500 RCModel World Const Guide$600 VTHGerman Plans Book$600 Yuad add $500 7u5si je J-5 uIa~h Call 714 8853959 credit card orders BRISTOL Mib Span 1055 351 scale $3600 i-$29o pp Winners ToledoThe Masters others .Bob Holman Box 741 San Berdo CA 92402. WITH THE UP1 ADJUSTABLE SPEED RETRACT VALVE REALISTIC MOTION FROM AIR RETRACTS unique valve thatSpeed range combines up and1-20 seconds up down switching1-20 seconds down function twoConstant speed over infinitely adjustablethe 20-100 psi speed control valvesoperating range Body sizeWeight 20 gins 1 2x 75x 375 inches4 air outlets NEW Airline Introductory price $2495 US quarter turn quick-disconnects $595 US NEW NEW 150 psi rated tubing 5 fteach grey clear lOft per pack $595 US NEW NEW Airline Tee fittings2 per pack $295 US NEW Dealer inquiries welcomeShipping$450 ULTRA PRECISION Technical Services Limited 1244 Honeysuckle Crescent Oakville Ontario L6H 2S8 Canada Phone 416842 1703 takes longer like sport-flylots several planes car feel can average spend time air timed charges Besides have higher-capability chargers timercontrolled have peak-chargers clear advantage peakcharging offers general need concerned about beginning-ofcharge condition pack Thus pack can have some partial charge empty still safely charged kind charger readily possible timer-controlled charger since cannot tell sure much tank begin Therefore would know much charge could safely pumped Theres lot info share batteries charging topic will continue future columns Beginning Electric fliers may want keep installment combine future additions topical area both will have less letter writing So ends another column Please enclose SASE correspondence d like reply Happy Quiet Electric Landings Everyone RC AerobaticsNan Putte Continued page 86 both indiscretions deserve should awarded scores zero plan use 150 rule Interest Senior Pattern Association SPA really taking off seems get letter phone call nearly day subject Before go further let defuse few comments Ive received Apparently some people think SPA group fliers trying escape Turnaround competition todays airplanes engines Everyone Ive talked corresponded about SPA excited about because airplanes simpler gives participants great nostalgic feeling SPA advocating anything other having fun some pre-1970 airplanes vintage maneuver schedules Anyone thinks SPA wants away Turnaround todays competition airplanes engines misinformed started looking around airplanes suitable SPA chances finding old kits seemed pretty grim did find Taurus kit line few others before deciding build A-6 Intruder assume people will same situation start looking something build Let give people hand problem mail has recently included opportunities obtaining plans kits SPA-eligible airplanes first listings received Bill LaRue Classic Air Models Co PO Box 784 Fruitland Pafk FL 34731 Tel 904/7877475 Bill sent lists Control Line Radio Control airplane kits available permission originators reproductions original kits plans wrote told Bill wasnt interested CL kits RC airplane list looks great list includes Citron Daddy Rabbit El Gringo Stormer Flat Top Stormer Sweet Tater Taurus Tiger Tail Kwik Fli Candy Phoenix Thunderstormer A-6 Intruder Pattern airplanes name afew Kit prices vary slightly range o1~ NEW MicroJet Package TO BUILD FAN POWER MODULE Entire module meighs lust 26 grams 05e ounce thrust FIies modets 60 90 in2 & up 3 ounces Peckage includes motor 3o5gmatt NtCd battery wiring haroess charger parts comptete instructions build tan unit Send SI $1995 P&H In Cataleg 178 Model Aviation nee SC PLANE VIDEO GIVES YOU LIBRARY 01 VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS BUILDING IT RIGHT ThE FIRST TIME 2-2 HOIJR VIDEOS SHOWING ALL DETAilS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUDING WING CONSTRUCTION RADIO INSTALLATION PUSIIRODS ALIGNMENT SALANCING ANI MUCH MORE *3495 shippIng 6800 foreign orders AEROBAliCS & GROUND SCHOOl 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKE -OPUS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE *1905 sNpping *600 foreign ordem BUILDING WITH FOAM 2-HOUR VIDEO PROVIDING INFORMATION ON FOAM WING CORES INSTALLING RETRACTS PRIMING COVERING WITH EG CLOTH PAINTING & DETAILING *1995 shippIng *600 foreign orders TAPES AVAILABLE N I/U-IS ONLY SEND CHECK OR MO TO PLANE VIDEO PD BOX 23126 dIVE IA 50325 CALL 1-800-383-8251 OR etecoi 515-2230807 34 HOUR TOLL FREE
Edition: Model Aviation - 1992/05
Page Numbers: 84, 85, 174, 175, 176, 177, 178
MAY 2 AND 3 years dates Sixth Annual Current News Challenge Electric meet sponsored Winston-Salem RC Club year Contest Director CD Charlie Spear will recognize Charlies name co-author monthly Electric column RC Report magazine meet dates significant departure mid-August timing has characterized former schedules Charlie tells us modification bowing pressure Yankee friends void some heat Southern summer Bridgema Neu Perrin 1992 US F3E team will wearing emblem Wand Championships Hoi iand coming August Brian Chan chair man F3E Team Fund Raising Commit tee invites everyone support team buying raft tickets merchandise now ing donated modeiing industry Raffle tickets wiii avaliabie after aii donations taiiied Right now can heip pur chasing team T-shirt patch pin re spectiveiy $12 $5 $3 Send payment US Eiectrtc Flight Team 20 Lemon Ct Hilisborough CA 94010-6214 new Electrics may first sight NI-Cd battery ceiis represent ative ceiis various size capacity usuaiiy pre-assembied ready-made battery packs can aiso buiid own pack individuai celia ceiis positive insi end bump fiat surface negative Some celia come pre attached soidering iugs Some have descriptive info piastic outer insuiating wrapper Pic tured 800 900 1200 1700 mAh ceiis Au photos author Anyway addition prizes Scale events 610 618 Meet location Beauty Most Impressive All-Up/Last- Thrift Field Advance North Carolina Down awards available AMA full particulars can obtained 84 Model Aviation Electrics Bob Kopski 25 West End Dr Lansdale PA 19440 THIS MONTHS TOPICS 1 Meet announce mentsAdvance NC Kent WA 2 American F3E effort 3 Batteries charg ing beginners individusi ceiis building blocks battery battery interconnection ceii Shown 2- 4- 6- 7- 18-ceii batteries motor batteries have ceils wired series per text packs shown homemade except Astro pack close-up photo homemade seven-cell 1700 mAh nickel-cadmium Ni-Cd motor bat tery pack showing positive tive rconnection cells known series wiring Overall pack has two output terminalsin case two wires wire positive other negative Voltage outputs sum individual cell voltages 7 x 12 olts nominal pack capacity same individual cells 17 Ah writing Charlie Spear 288 Holly Ln Mocksville NC 27828 Next up Tenth Annual Electric RC Fly-In sponsored Puget Sound Electric Model Flyers June 27-28 PSEMF home field Model Builders Electric columnist Mitch Poling although Mitch presently writing temporary location Germany Anyway CD Bernard Cawley tells years meet has Schematic Symbols Cell Two Cells series connected Multi-Cells series connected Pictorial Symbols -LIlY -IZITLZIITypical wiring symbois used depict batteries ceil interconnections may see time time various articies about Electrica weii other RC articles prizes trophies Most Aerobatic Best Scale Longest Flight Most Impressive Best Multi-Motor seeking true competition will AMA 609 event Thats CD will also awarding discretionary Special Achievement awards location fun Boeing Kent Space Center Field Kent Washington can get specifics contacting Bernard Cawley 29838 48th Ave S Auburn WA 98001 telephone 206 839-9157 Assistant CD Ben Almojuela 1941 6th Ave W Seattle WA 98119 telephone 206 283-3407 contact Charlie Bernard Ben please tell em Bob sent ya 1992 Olympics just days away wrote column Olympics events will history issue received However theres another world-class event just ahead should special interest readers columnthe 1992 FM F3E World Championships coming August Continued page 174 May 1992 85 NI-Cd motor battery iuei tank heavy relatively speaking 1 8-cell 12 Ah pack weighs little over 2 ib seen digital scaic Kopakis cobait 40powered acrobatIc ship piane weighs 5 ib 8 oz motor battery typicaiiy 30 40% finished weight Eiectrics C-130 HERKY-BIRD 130118 Wingspan515 Wing area 87 272aq 752aq Wing load 335 oz 33 oz natruction manual included PLANS 3 sh $48 $68 115 scale nacelles available plans include model specs weight schedule scale source information experienced 645 5058 sq PLANS 4 sh Canopy air intakes & access Rolled & postpaid IUSAby PALMER PLANS 21 0-1/2 EL CAMINO DR Dept C BEVERLY HILLS CA 90212 310 274-2456 A-26BINVADER Scale112 Wingspan Wing area 70 5405 sq Wing loading229 twin 25s instruction Manual Included PLANS 4 sh$58 Fiberglass cowls svaliable SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS mrnruV OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/ 2A TEXACO PLAYBOY SR KIT 112A 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 & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS down side though 10/Ss performance doesnt produce much way coefficient lift therefore isnt airfoil would want use model designed light lift conditions however have abundant lift might consider using airfoil next design elicopters/Jolly Continued page 83 Honestly am amazed smooth gear train example Everything tight isnt slop anywhere Helicopter truly high quality machine Its going next weekend before can fly Alpha II please come back next month Ill let know what find Besides want try couple sets blades will give opportunity put few gallons through Alpha before wrap up Robert Teoh Goes Home just heard Tom Dooley during conversation told well known Heli-flier collector around nice guy Robert Teoh will leaving Atlanta area will returning come country Malaysia know Roberts friends will join wishing Robert fond farewell Good luck Robert hope able continue favorite hobby back home think bad day department called Dan Melnik Vertical Flight Technologies other night order some new FAI carbon blades seemed little down asked what bothering him Well hasnt great year Dan seems Tangerine lost number ship during practice day before contest During contest stretched auto farther Kalt wanted go awful boom strike last weekend went down Ernie Hubers Fun Fly new ship Everything going well lot swell people getting some flying Dan mid aired Miniature Aircraft X-Cell 40 wiping out both ships Unbeknownst Dan two werent casualties Some poor guy hovering near pits lost ship piece mid aired ships went through rotor disc predictable results Some days just doesnt pay get up Hirobo Vertol Ive working Hirobo Vertol tandem ship have truly satisfied anybody out really flying circuits general has successful Helicopter please contact Id love publish findings BCNU RC Electrics/Kopski Continued page 85 United States Electric Team will seek claim F3E Gold Holland year US represented team Jerry Bridgeman Steve Neu Jasin Perrin Ive met Steve January 1992 MA have corresponded both him Jasin Perrin can tell guys serious say because along hundreds witnessed spectacular F3E demonstration Steve put KRC 1991 performance nothing routine about clearly convinced present lots special effort dedication went both plane pilot performance-polishing Following dazzling demonstration members KRC wasted no time committing support F3E team Im well aware readers both familiar much interested personally participating F3E Nor Ihistorically after seeing Steve planes cant help feel supportive pursuit despite limited popular interest International Electric competition relatively new American modelers past attempts arena have fallen short 174 Model Aviation 1/4 Scale Wingspan Wing area Wing loading 338oz OUR 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 full success However thrust continues Im believe team attempt gold good us just E-fliers just modelers usas Americanjust like Olympics Next month Ill have some descriptive information regarding nature F3E flying Meanwhile Id like suggest and/or club might want consider offering some support Electric team team relies heavily industry other support can help share did KRC mailing contribution US Electric Flight Team 20 Lemon Ct Hillsborough CA 94010-6241 write tell em Bob sent topic unceasing reader inquiry dual subject motor batteries charging think Electric columnist has covered aspects combined subject often anything else What see continual growth Electric general column readership particular some topics previously coveredlike onemust periodically revisited month offers some topical info especially new entrant fun world Electrics experienced E-fliers among us may find bit boring begin nickel-cadmium motor batteries indeed batteries made up individual cells cell basic building block its characteristics alone determine basic characteristics total battery pack thinks battery fuel tank sorts cell capacity number cells fully describe energy storage capability tank Cell battery size capacity expressed ounces like wet fuel tank rather current X time number expression represents what cell battery cells nominally capable storing delivering Thus cells have ampere-hours milliampere-hours ampere-minutes milliampere-minutes capacity terms fully interchangeable provided appropriate scale factor also used easy way think cell capacity nominal time needed fully charge fully discharge cell ampere current proper correct ampere rarely experienced Electric applications Thus its really practical view cell capacity generalized way total product current X time ncrease decrease either term other adjusts appropriately downward upward respectively keep final value constant Think filling emptying water bottle Either action takes longer trickle low current pouring dumping high current case bottle size bottle size does change Popular Electric cell sizes capacities include limited 900 1200 milliampere-hours mAh two examples could just well have expressed 09 12 ampere-hours respectively term milli means 1/1000 50 12 Ah equals 1200 mAh Similarly 1 2-Ah cell battery could also described 72 ampereminute cell battery follows AC ff7L1k1 Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 May1992 175 Obechi Large Sheets Please call 404 642-0645 send SASE #7 Creekpark Ct Roswell GA 30076 ADVANCED AERO PRODUCTS YS & OS SPASS 120 rwv EXHAuST SYSTEMS POR PATTERN AIRCRAFT AND ULTIMATE WE SIUCONE COUPLERS AND TAIl PIPES ALSO AVAILABLE GML O TF WORAATN OAI OJWES ffiTO RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 * Internal over-voltage protection * Diode battery protection * 4-cell nicad operation fact 60 minutes hour 12 ampere-hours times 60 minutes per hour equals 72 ampereminutes An O9-Ah pack could described 54 Am some convenience describing capacity minutes descriptor will see some typical Electric modeling examples above ideas Consider motor drawing 20 amps 1 2-Ah packa perfectly reasonable condition fully charged 1200 milliampere-hour battery would run motor 12 Its EasyTo SiN1 Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column Mode/A vat/on Nov 90 Easy assemble battery starter PATENT PENDING See ACE R/C dealer send check money order KRANKING Safety Starters PO Box 2563 Beaumont Texas 77704 Add $700 packaging shipping UPS Texas rosideeto add 825% sales tax Allow approximately two weeks delivery Ah/20 amps hours Since 60 minutes hour would translate 006 x 60 36 minutes Since 60 seconds minute turn translates 3 mm 36 sec As another example consider recharging same pack Lets say charger delivers steady 4 amps charge current Thus pack would reach nominal full charge 12 Ah/4 amps ours As above translates 18 minutes Throughout above discussions have used word nominal several times because example nominal named label cell capacity hardly ever experienced exactly Thus typical 1200mAh cell will display just about capacity Actual capacity has some variability due manufacturing tolerances also due usage parameters example fully charged pack will display apparent capacity low discharge current high discharge PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Unsurpasr IA current Also fully charged may really achieved somewhat charging predicted label size actual practice variations rather small careful observation will reveal existence feel compelled warn such cell has two terminalsone end physical cell designated named positive negative usual appearance positive terminal centered raised bump cell end usual appearance negative terminal simply flat surface cell may may also have or s stamped cell ends printed cell label motor batteries always have cells wired series means positive terminal cell connected negative terminal next overall pack winds up positive negative output terminal series connection cells results overall battery output voltage being sum individual cells 176 Model Aviation REICHMUTH eledronic advance has no moving parts advance totally controlled engine speed Engines require no modificeation Zenoahs Quadras INSTABLOCK fast simple way convert engine BEFORE buy.ask. Does ignition have * Electronic automatic advance * Regulated power supply PRICES lees battery/spark plug Single cylinder$107 Twin cylinder$134 Inatablock pre-mounted w/syatem$16 Instablock w/sensors mounted 2nd engine$32 Stitt 480 1/4x32 sparkplug$10 NGK ME8 1/4x32 sparkplug -$13 NGK 10mm sparkplug$3 Shipping handling$4 COD$4 2nd day air add$3 Performance WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No 324 SEND $100 FOR PRICE LIST AND CATALOG 7ffrebun RIC 1db-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-Idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 151 ca * Wayne NJ 07470 number cells has no effect whatsoever battery capacity However direcfly affects total stored energy will seen later because same charge discharge currents flow equally through cells same time no matter should clear cells pack must always same size Thus example 12 Ah 09 Ah sizes described above never mixed within pack Battery charging has evolved range techniques preferences chargers market designed operate different ways accomplish charging task As generalization model motor flight batteries can charged appropriate current usually about 15 mm little fact chargers include timer-switches can set particular time interval use myself other chargers however have no timers instead use sophisticated charge-termination techniques rely certain battery characteristics signal charger electronics stop charging process pack full Both voltagepeak techniques thermal-detection schemes used former being popular case should clear 15-mm charging lot different familiar overnight variety routinely used charge radio transmitter receiver battery packs Its experience timercontrolled charger fully practical device used properly peakdetector kind will usually provide somewhat flight time properly mean setting charge current value such chargers 15-mm timer will allow pack almost filled assuming pack empty begin Lets look little moresince ask consider packs empty otherwise very flyable plane wont fly means flight goes will point model will sink despite fact prop may still turning battery pack voltage has dropped level rpm insufficient level flight continue empty course plane wont fly fully charged pack description non sequitur Anyway just little field experience empty condition readily recognized telltale rpm drop normal Empty means can proceed fill pack predictable way case popular 12 Ah-size packs personally charge about 45 amps 15 mm represents total charge little below label value helps assure battery does overfill Note example Ive chosen desired charge time period really charger timer has chosen adjusted current accordingly cell exact 12 Ah capacity would exactly filled 12 Ah/025 hour mp current value Id rather safe sorry hence choice 45-amp setting look flight profile graphs March April columns youll see flight times safe timed charges very comfortable occasions want fully charge motor battery Ill use peakcharger lets set forget charge conditions charger stops know Im going have full charge RC car folks have devised some techniques squeezing bit out cell performancebut thats different story altogether given flight profiles mentioned previously would peak-charge reason would flying competitive event required out pack might example All-Up/Last-Down event Another reason would experimentation dont peak-charge time thing peak-charging typically May1992 177 CatalogsThe Best Scale Best Scale$400 ASPModel aircraft Plans Handbook$500 ASPScale Drawin9 Plans Book$500 RCModel World Const Guide$600 VTHGerman Plans Book$600 Yuad add $500 7u5si je J-5 uIa~h Call 714 8853959 credit card orders BRISTOL Mib Span 1055 351 scale $3600 i-$29o pp Winners ToledoThe Masters others .Bob Holman Box 741 San Berdo CA 92402. WITH THE UP1 ADJUSTABLE SPEED RETRACT VALVE REALISTIC MOTION FROM AIR RETRACTS unique valve thatSpeed range combines up and1-20 seconds up down switching1-20 seconds down function twoConstant speed over infinitely adjustablethe 20-100 psi speed control valvesoperating range Body sizeWeight 20 gins 1 2x 75x 375 inches4 air outlets NEW Airline Introductory price $2495 US quarter turn quick-disconnects $595 US NEW NEW 150 psi rated tubing 5 fteach grey clear lOft per pack $595 US NEW NEW Airline Tee fittings2 per pack $295 US NEW Dealer inquiries welcomeShipping$450 ULTRA PRECISION Technical Services Limited 1244 Honeysuckle Crescent Oakville Ontario L6H 2S8 Canada Phone 416842 1703 takes longer like sport-flylots several planes car feel can average spend time air timed charges Besides have higher-capability chargers timercontrolled have peak-chargers clear advantage peakcharging offers general need concerned about beginning-ofcharge condition pack Thus pack can have some partial charge empty still safely charged kind charger readily possible timer-controlled charger since cannot tell sure much tank begin Therefore would know much charge could safely pumped Theres lot info share batteries charging topic will continue future columns Beginning Electric fliers may want keep installment combine future additions topical area both will have less letter writing So ends another column Please enclose SASE correspondence d like reply Happy Quiet Electric Landings Everyone RC AerobaticsNan Putte Continued page 86 both indiscretions deserve should awarded scores zero plan use 150 rule Interest Senior Pattern Association SPA really taking off seems get letter phone call nearly day subject Before go further let defuse few comments Ive received Apparently some people think SPA group fliers trying escape Turnaround competition todays airplanes engines Everyone Ive talked corresponded about SPA excited about because airplanes simpler gives participants great nostalgic feeling SPA advocating anything other having fun some pre-1970 airplanes vintage maneuver schedules Anyone thinks SPA wants away Turnaround todays competition airplanes engines misinformed started looking around airplanes suitable SPA chances finding old kits seemed pretty grim did find Taurus kit line few others before deciding build A-6 Intruder assume people will same situation start looking something build Let give people hand problem mail has recently included opportunities obtaining plans kits SPA-eligible airplanes first listings received Bill LaRue Classic Air Models Co PO Box 784 Fruitland Pafk FL 34731 Tel 904/7877475 Bill sent lists Control Line Radio Control airplane kits available permission originators reproductions original kits plans wrote told Bill wasnt interested CL kits RC airplane list looks great list includes Citron Daddy Rabbit El Gringo Stormer Flat Top Stormer Sweet Tater Taurus Tiger Tail Kwik Fli Candy Phoenix Thunderstormer A-6 Intruder Pattern airplanes name afew Kit prices vary slightly range o1~ NEW MicroJet Package TO BUILD FAN POWER MODULE Entire module meighs lust 26 grams 05e ounce thrust FIies modets 60 90 in2 & up 3 ounces Peckage includes motor 3o5gmatt NtCd battery wiring haroess charger parts comptete instructions build tan unit Send SI $1995 P&H In Cataleg 178 Model Aviation nee SC PLANE VIDEO GIVES YOU LIBRARY 01 VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS BUILDING IT RIGHT ThE FIRST TIME 2-2 HOIJR VIDEOS SHOWING ALL DETAilS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUDING WING CONSTRUCTION RADIO INSTALLATION PUSIIRODS ALIGNMENT SALANCING ANI MUCH MORE *3495 shippIng 6800 foreign orders AEROBAliCS & GROUND SCHOOl 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKE -OPUS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE *1905 sNpping *600 foreign ordem BUILDING WITH FOAM 2-HOUR VIDEO PROVIDING INFORMATION ON FOAM WING CORES INSTALLING RETRACTS PRIMING COVERING WITH EG CLOTH PAINTING & DETAILING *1995 shippIng *600 foreign orders TAPES AVAILABLE N I/U-IS ONLY SEND CHECK OR MO TO PLANE VIDEO PD BOX 23126 dIVE IA 50325 CALL 1-800-383-8251 OR etecoi 515-2230807 34 HOUR TOLL FREE
Edition: Model Aviation - 1992/05
Page Numbers: 84, 85, 174, 175, 176, 177, 178
MAY 2 AND 3 years dates Sixth Annual Current News Challenge Electric meet sponsored Winston-Salem RC Club year Contest Director CD Charlie Spear will recognize Charlies name co-author monthly Electric column RC Report magazine meet dates significant departure mid-August timing has characterized former schedules Charlie tells us modification bowing pressure Yankee friends void some heat Southern summer Bridgema Neu Perrin 1992 US F3E team will wearing emblem Wand Championships Hoi iand coming August Brian Chan chair man F3E Team Fund Raising Commit tee invites everyone support team buying raft tickets merchandise now ing donated modeiing industry Raffle tickets wiii avaliabie after aii donations taiiied Right now can heip pur chasing team T-shirt patch pin re spectiveiy $12 $5 $3 Send payment US Eiectrtc Flight Team 20 Lemon Ct Hilisborough CA 94010-6214 new Electrics may first sight NI-Cd battery ceiis represent ative ceiis various size capacity usuaiiy pre-assembied ready-made battery packs can aiso buiid own pack individuai celia ceiis positive insi end bump fiat surface negative Some celia come pre attached soidering iugs Some have descriptive info piastic outer insuiating wrapper Pic tured 800 900 1200 1700 mAh ceiis Au photos author Anyway addition prizes Scale events 610 618 Meet location Beauty Most Impressive All-Up/Last- Thrift Field Advance North Carolina Down awards available AMA full particulars can obtained 84 Model Aviation Electrics Bob Kopski 25 West End Dr Lansdale PA 19440 THIS MONTHS TOPICS 1 Meet announce mentsAdvance NC Kent WA 2 American F3E effort 3 Batteries charg ing beginners individusi ceiis building blocks battery battery interconnection ceii Shown 2- 4- 6- 7- 18-ceii batteries motor batteries have ceils wired series per text packs shown homemade except Astro pack close-up photo homemade seven-cell 1700 mAh nickel-cadmium Ni-Cd motor bat tery pack showing positive tive rconnection cells known series wiring Overall pack has two output terminalsin case two wires wire positive other negative Voltage outputs sum individual cell voltages 7 x 12 olts nominal pack capacity same individual cells 17 Ah writing Charlie Spear 288 Holly Ln Mocksville NC 27828 Next up Tenth Annual Electric RC Fly-In sponsored Puget Sound Electric Model Flyers June 27-28 PSEMF home field Model Builders Electric columnist Mitch Poling although Mitch presently writing temporary location Germany Anyway CD Bernard Cawley tells years meet has Schematic Symbols Cell Two Cells series connected Multi-Cells series connected Pictorial Symbols -LIlY -IZITLZIITypical wiring symbois used depict batteries ceil interconnections may see time time various articies about Electrica weii other RC articles prizes trophies Most Aerobatic Best Scale Longest Flight Most Impressive Best Multi-Motor seeking true competition will AMA 609 event Thats CD will also awarding discretionary Special Achievement awards location fun Boeing Kent Space Center Field Kent Washington can get specifics contacting Bernard Cawley 29838 48th Ave S Auburn WA 98001 telephone 206 839-9157 Assistant CD Ben Almojuela 1941 6th Ave W Seattle WA 98119 telephone 206 283-3407 contact Charlie Bernard Ben please tell em Bob sent ya 1992 Olympics just days away wrote column Olympics events will history issue received However theres another world-class event just ahead should special interest readers columnthe 1992 FM F3E World Championships coming August Continued page 174 May 1992 85 NI-Cd motor battery iuei tank heavy relatively speaking 1 8-cell 12 Ah pack weighs little over 2 ib seen digital scaic Kopakis cobait 40powered acrobatIc ship piane weighs 5 ib 8 oz motor battery typicaiiy 30 40% finished weight Eiectrics C-130 HERKY-BIRD 130118 Wingspan515 Wing area 87 272aq 752aq Wing load 335 oz 33 oz natruction manual included PLANS 3 sh $48 $68 115 scale nacelles available plans include model specs weight schedule scale source information experienced 645 5058 sq PLANS 4 sh Canopy air intakes & access Rolled & postpaid IUSAby PALMER PLANS 21 0-1/2 EL CAMINO DR Dept C BEVERLY HILLS CA 90212 310 274-2456 A-26BINVADER Scale112 Wingspan Wing area 70 5405 sq Wing loading229 twin 25s instruction Manual Included PLANS 4 sh$58 Fiberglass cowls svaliable SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS mrnruV OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/ 2A TEXACO PLAYBOY SR KIT 112A 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 & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS down side though 10/Ss performance doesnt produce much way coefficient lift therefore isnt airfoil would want use model designed light lift conditions however have abundant lift might consider using airfoil next design elicopters/Jolly Continued page 83 Honestly am amazed smooth gear train example Everything tight isnt slop anywhere Helicopter truly high quality machine Its going next weekend before can fly Alpha II please come back next month Ill let know what find Besides want try couple sets blades will give opportunity put few gallons through Alpha before wrap up Robert Teoh Goes Home just heard Tom Dooley during conversation told well known Heli-flier collector around nice guy Robert Teoh will leaving Atlanta area will returning come country Malaysia know Roberts friends will join wishing Robert fond farewell Good luck Robert hope able continue favorite hobby back home think bad day department called Dan Melnik Vertical Flight Technologies other night order some new FAI carbon blades seemed little down asked what bothering him Well hasnt great year Dan seems Tangerine lost number ship during practice day before contest During contest stretched auto farther Kalt wanted go awful boom strike last weekend went down Ernie Hubers Fun Fly new ship Everything going well lot swell people getting some flying Dan mid aired Miniature Aircraft X-Cell 40 wiping out both ships Unbeknownst Dan two werent casualties Some poor guy hovering near pits lost ship piece mid aired ships went through rotor disc predictable results Some days just doesnt pay get up Hirobo Vertol Ive working Hirobo Vertol tandem ship have truly satisfied anybody out really flying circuits general has successful Helicopter please contact Id love publish findings BCNU RC Electrics/Kopski Continued page 85 United States Electric Team will seek claim F3E Gold Holland year US represented team Jerry Bridgeman Steve Neu Jasin Perrin Ive met Steve January 1992 MA have corresponded both him Jasin Perrin can tell guys serious say because along hundreds witnessed spectacular F3E demonstration Steve put KRC 1991 performance nothing routine about clearly convinced present lots special effort dedication went both plane pilot performance-polishing Following dazzling demonstration members KRC wasted no time committing support F3E team Im well aware readers both familiar much interested personally participating F3E Nor Ihistorically after seeing Steve planes cant help feel supportive pursuit despite limited popular interest International Electric competition relatively new American modelers past attempts arena have fallen short 174 Model Aviation 1/4 Scale Wingspan Wing area Wing loading 338oz OUR 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 full success However thrust continues Im believe team attempt gold good us just E-fliers just modelers usas Americanjust like Olympics Next month Ill have some descriptive information regarding nature F3E flying Meanwhile Id like suggest and/or club might want consider offering some support Electric team team relies heavily industry other support can help share did KRC mailing contribution US Electric Flight Team 20 Lemon Ct Hillsborough CA 94010-6241 write tell em Bob sent topic unceasing reader inquiry dual subject motor batteries charging think Electric columnist has covered aspects combined subject often anything else What see continual growth Electric general column readership particular some topics previously coveredlike onemust periodically revisited month offers some topical info especially new entrant fun world Electrics experienced E-fliers among us may find bit boring begin nickel-cadmium motor batteries indeed batteries made up individual cells cell basic building block its characteristics alone determine basic characteristics total battery pack thinks battery fuel tank sorts cell capacity number cells fully describe energy storage capability tank Cell battery size capacity expressed ounces like wet fuel tank rather current X time number expression represents what cell battery cells nominally capable storing delivering Thus cells have ampere-hours milliampere-hours ampere-minutes milliampere-minutes capacity terms fully interchangeable provided appropriate scale factor also used easy way think cell capacity nominal time needed fully charge fully discharge cell ampere current proper correct ampere rarely experienced Electric applications Thus its really practical view cell capacity generalized way total product current X time ncrease decrease either term other adjusts appropriately downward upward respectively keep final value constant Think filling emptying water bottle Either action takes longer trickle low current pouring dumping high current case bottle size bottle size does change Popular Electric cell sizes capacities include limited 900 1200 milliampere-hours mAh two examples could just well have expressed 09 12 ampere-hours respectively term milli means 1/1000 50 12 Ah equals 1200 mAh Similarly 1 2-Ah cell battery could also described 72 ampereminute cell battery follows AC ff7L1k1 Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 May1992 175 Obechi Large Sheets Please call 404 642-0645 send SASE #7 Creekpark Ct Roswell GA 30076 ADVANCED AERO PRODUCTS YS & OS SPASS 120 rwv EXHAuST SYSTEMS POR PATTERN AIRCRAFT AND ULTIMATE WE SIUCONE COUPLERS AND TAIl PIPES ALSO AVAILABLE GML O TF WORAATN OAI OJWES ffiTO RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 * Internal over-voltage protection * Diode battery protection * 4-cell nicad operation fact 60 minutes hour 12 ampere-hours times 60 minutes per hour equals 72 ampereminutes An O9-Ah pack could described 54 Am some convenience describing capacity minutes descriptor will see some typical Electric modeling examples above ideas Consider motor drawing 20 amps 1 2-Ah packa perfectly reasonable condition fully charged 1200 milliampere-hour battery would run motor 12 Its EasyTo SiN1 Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column Mode/A vat/on Nov 90 Easy assemble battery starter PATENT PENDING See ACE R/C dealer send check money order KRANKING Safety Starters PO Box 2563 Beaumont Texas 77704 Add $700 packaging shipping UPS Texas rosideeto add 825% sales tax Allow approximately two weeks delivery Ah/20 amps hours Since 60 minutes hour would translate 006 x 60 36 minutes Since 60 seconds minute turn translates 3 mm 36 sec As another example consider recharging same pack Lets say charger delivers steady 4 amps charge current Thus pack would reach nominal full charge 12 Ah/4 amps ours As above translates 18 minutes Throughout above discussions have used word nominal several times because example nominal named label cell capacity hardly ever experienced exactly Thus typical 1200mAh cell will display just about capacity Actual capacity has some variability due manufacturing tolerances also due usage parameters example fully charged pack will display apparent capacity low discharge current high discharge PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Unsurpasr IA current Also fully charged may really achieved somewhat charging predicted label size actual practice variations rather small careful observation will reveal existence feel compelled warn such cell has two terminalsone end physical cell designated named positive negative usual appearance positive terminal centered raised bump cell end usual appearance negative terminal simply flat surface cell may may also have or s stamped cell ends printed cell label motor batteries always have cells wired series means positive terminal cell connected negative terminal next overall pack winds up positive negative output terminal series connection cells results overall battery output voltage being sum individual cells 176 Model Aviation REICHMUTH eledronic advance has no moving parts advance totally controlled engine speed Engines require no modificeation Zenoahs Quadras INSTABLOCK fast simple way convert engine BEFORE buy.ask. Does ignition have * Electronic automatic advance * Regulated power supply PRICES lees battery/spark plug Single cylinder$107 Twin cylinder$134 Inatablock pre-mounted w/syatem$16 Instablock w/sensors mounted 2nd engine$32 Stitt 480 1/4x32 sparkplug$10 NGK ME8 1/4x32 sparkplug -$13 NGK 10mm sparkplug$3 Shipping handling$4 COD$4 2nd day air add$3 Performance WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No 324 SEND $100 FOR PRICE LIST AND CATALOG 7ffrebun RIC 1db-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-Idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 151 ca * Wayne NJ 07470 number cells has no effect whatsoever battery capacity However direcfly affects total stored energy will seen later because same charge discharge currents flow equally through cells same time no matter should clear cells pack must always same size Thus example 12 Ah 09 Ah sizes described above never mixed within pack Battery charging has evolved range techniques preferences chargers market designed operate different ways accomplish charging task As generalization model motor flight batteries can charged appropriate current usually about 15 mm little fact chargers include timer-switches can set particular time interval use myself other chargers however have no timers instead use sophisticated charge-termination techniques rely certain battery characteristics signal charger electronics stop charging process pack full Both voltagepeak techniques thermal-detection schemes used former being popular case should clear 15-mm charging lot different familiar overnight variety routinely used charge radio transmitter receiver battery packs Its experience timercontrolled charger fully practical device used properly peakdetector kind will usually provide somewhat flight time properly mean setting charge current value such chargers 15-mm timer will allow pack almost filled assuming pack empty begin Lets look little moresince ask consider packs empty otherwise very flyable plane wont fly means flight goes will point model will sink despite fact prop may still turning battery pack voltage has dropped level rpm insufficient level flight continue empty course plane wont fly fully charged pack description non sequitur Anyway just little field experience empty condition readily recognized telltale rpm drop normal Empty means can proceed fill pack predictable way case popular 12 Ah-size packs personally charge about 45 amps 15 mm represents total charge little below label value helps assure battery does overfill Note example Ive chosen desired charge time period really charger timer has chosen adjusted current accordingly cell exact 12 Ah capacity would exactly filled 12 Ah/025 hour mp current value Id rather safe sorry hence choice 45-amp setting look flight profile graphs March April columns youll see flight times safe timed charges very comfortable occasions want fully charge motor battery Ill use peakcharger lets set forget charge conditions charger stops know Im going have full charge RC car folks have devised some techniques squeezing bit out cell performancebut thats different story altogether given flight profiles mentioned previously would peak-charge reason would flying competitive event required out pack might example All-Up/Last-Down event Another reason would experimentation dont peak-charge time thing peak-charging typically May1992 177 CatalogsThe Best Scale Best Scale$400 ASPModel aircraft Plans Handbook$500 ASPScale Drawin9 Plans Book$500 RCModel World Const Guide$600 VTHGerman Plans Book$600 Yuad add $500 7u5si je J-5 uIa~h Call 714 8853959 credit card orders BRISTOL Mib Span 1055 351 scale $3600 i-$29o pp Winners ToledoThe Masters others .Bob Holman Box 741 San Berdo CA 92402. WITH THE UP1 ADJUSTABLE SPEED RETRACT VALVE REALISTIC MOTION FROM AIR RETRACTS unique valve thatSpeed range combines up and1-20 seconds up down switching1-20 seconds down function twoConstant speed over infinitely adjustablethe 20-100 psi speed control valvesoperating range Body sizeWeight 20 gins 1 2x 75x 375 inches4 air outlets NEW Airline Introductory price $2495 US quarter turn quick-disconnects $595 US NEW NEW 150 psi rated tubing 5 fteach grey clear lOft per pack $595 US NEW NEW Airline Tee fittings2 per pack $295 US NEW Dealer inquiries welcomeShipping$450 ULTRA PRECISION Technical Services Limited 1244 Honeysuckle Crescent Oakville Ontario L6H 2S8 Canada Phone 416842 1703 takes longer like sport-flylots several planes car feel can average spend time air timed charges Besides have higher-capability chargers timercontrolled have peak-chargers clear advantage peakcharging offers general need concerned about beginning-ofcharge condition pack Thus pack can have some partial charge empty still safely charged kind charger readily possible timer-controlled charger since cannot tell sure much tank begin Therefore would know much charge could safely pumped Theres lot info share batteries charging topic will continue future columns Beginning Electric fliers may want keep installment combine future additions topical area both will have less letter writing So ends another column Please enclose SASE correspondence d like reply Happy Quiet Electric Landings Everyone RC AerobaticsNan Putte Continued page 86 both indiscretions deserve should awarded scores zero plan use 150 rule Interest Senior Pattern Association SPA really taking off seems get letter phone call nearly day subject Before go further let defuse few comments Ive received Apparently some people think SPA group fliers trying escape Turnaround competition todays airplanes engines Everyone Ive talked corresponded about SPA excited about because airplanes simpler gives participants great nostalgic feeling SPA advocating anything other having fun some pre-1970 airplanes vintage maneuver schedules Anyone thinks SPA wants away Turnaround todays competition airplanes engines misinformed started looking around airplanes suitable SPA chances finding old kits seemed pretty grim did find Taurus kit line few others before deciding build A-6 Intruder assume people will same situation start looking something build Let give people hand problem mail has recently included opportunities obtaining plans kits SPA-eligible airplanes first listings received Bill LaRue Classic Air Models Co PO Box 784 Fruitland Pafk FL 34731 Tel 904/7877475 Bill sent lists Control Line Radio Control airplane kits available permission originators reproductions original kits plans wrote told Bill wasnt interested CL kits RC airplane list looks great list includes Citron Daddy Rabbit El Gringo Stormer Flat Top Stormer Sweet Tater Taurus Tiger Tail Kwik Fli Candy Phoenix Thunderstormer A-6 Intruder Pattern airplanes name afew Kit prices vary slightly range o1~ NEW MicroJet Package TO BUILD FAN POWER MODULE Entire module meighs lust 26 grams 05e ounce thrust FIies modets 60 90 in2 & up 3 ounces Peckage includes motor 3o5gmatt NtCd battery wiring haroess charger parts comptete instructions build tan unit Send SI $1995 P&H In Cataleg 178 Model Aviation nee SC PLANE VIDEO GIVES YOU LIBRARY 01 VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS BUILDING IT RIGHT ThE FIRST TIME 2-2 HOIJR VIDEOS SHOWING ALL DETAilS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUDING WING CONSTRUCTION RADIO INSTALLATION PUSIIRODS ALIGNMENT SALANCING ANI MUCH MORE *3495 shippIng 6800 foreign orders AEROBAliCS & GROUND SCHOOl 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKE -OPUS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE *1905 sNpping *600 foreign ordem BUILDING WITH FOAM 2-HOUR VIDEO PROVIDING INFORMATION ON FOAM WING CORES INSTALLING RETRACTS PRIMING COVERING WITH EG CLOTH PAINTING & DETAILING *1995 shippIng *600 foreign orders TAPES AVAILABLE N I/U-IS ONLY SEND CHECK OR MO TO PLANE VIDEO PD BOX 23126 dIVE IA 50325 CALL 1-800-383-8251 OR etecoi 515-2230807 34 HOUR TOLL FREE
Edition: Model Aviation - 1992/05
Page Numbers: 84, 85, 174, 175, 176, 177, 178
MAY 2 AND 3 years dates Sixth Annual Current News Challenge Electric meet sponsored Winston-Salem RC Club year Contest Director CD Charlie Spear will recognize Charlies name co-author monthly Electric column RC Report magazine meet dates significant departure mid-August timing has characterized former schedules Charlie tells us modification bowing pressure Yankee friends void some heat Southern summer Bridgema Neu Perrin 1992 US F3E team will wearing emblem Wand Championships Hoi iand coming August Brian Chan chair man F3E Team Fund Raising Commit tee invites everyone support team buying raft tickets merchandise now ing donated modeiing industry Raffle tickets wiii avaliabie after aii donations taiiied Right now can heip pur chasing team T-shirt patch pin re spectiveiy $12 $5 $3 Send payment US Eiectrtc Flight Team 20 Lemon Ct Hilisborough CA 94010-6214 new Electrics may first sight NI-Cd battery ceiis represent ative ceiis various size capacity usuaiiy pre-assembied ready-made battery packs can aiso buiid own pack individuai celia ceiis positive insi end bump fiat surface negative Some celia come pre attached soidering iugs Some have descriptive info piastic outer insuiating wrapper Pic tured 800 900 1200 1700 mAh ceiis Au photos author Anyway addition prizes Scale events 610 618 Meet location Beauty Most Impressive All-Up/Last- Thrift Field Advance North Carolina Down awards available AMA full particulars can obtained 84 Model Aviation Electrics Bob Kopski 25 West End Dr Lansdale PA 19440 THIS MONTHS TOPICS 1 Meet announce mentsAdvance NC Kent WA 2 American F3E effort 3 Batteries charg ing beginners individusi ceiis building blocks battery battery interconnection ceii Shown 2- 4- 6- 7- 18-ceii batteries motor batteries have ceils wired series per text packs shown homemade except Astro pack close-up photo homemade seven-cell 1700 mAh nickel-cadmium Ni-Cd motor bat tery pack showing positive tive rconnection cells known series wiring Overall pack has two output terminalsin case two wires wire positive other negative Voltage outputs sum individual cell voltages 7 x 12 olts nominal pack capacity same individual cells 17 Ah writing Charlie Spear 288 Holly Ln Mocksville NC 27828 Next up Tenth Annual Electric RC Fly-In sponsored Puget Sound Electric Model Flyers June 27-28 PSEMF home field Model Builders Electric columnist Mitch Poling although Mitch presently writing temporary location Germany Anyway CD Bernard Cawley tells years meet has Schematic Symbols Cell Two Cells series connected Multi-Cells series connected Pictorial Symbols -LIlY -IZITLZIITypical wiring symbois used depict batteries ceil interconnections may see time time various articies about Electrica weii other RC articles prizes trophies Most Aerobatic Best Scale Longest Flight Most Impressive Best Multi-Motor seeking true competition will AMA 609 event Thats CD will also awarding discretionary Special Achievement awards location fun Boeing Kent Space Center Field Kent Washington can get specifics contacting Bernard Cawley 29838 48th Ave S Auburn WA 98001 telephone 206 839-9157 Assistant CD Ben Almojuela 1941 6th Ave W Seattle WA 98119 telephone 206 283-3407 contact Charlie Bernard Ben please tell em Bob sent ya 1992 Olympics just days away wrote column Olympics events will history issue received However theres another world-class event just ahead should special interest readers columnthe 1992 FM F3E World Championships coming August Continued page 174 May 1992 85 NI-Cd motor battery iuei tank heavy relatively speaking 1 8-cell 12 Ah pack weighs little over 2 ib seen digital scaic Kopakis cobait 40powered acrobatIc ship piane weighs 5 ib 8 oz motor battery typicaiiy 30 40% finished weight Eiectrics C-130 HERKY-BIRD 130118 Wingspan515 Wing area 87 272aq 752aq Wing load 335 oz 33 oz natruction manual included PLANS 3 sh $48 $68 115 scale nacelles available plans include model specs weight schedule scale source information experienced 645 5058 sq PLANS 4 sh Canopy air intakes & access Rolled & postpaid IUSAby PALMER PLANS 21 0-1/2 EL CAMINO DR Dept C BEVERLY HILLS CA 90212 310 274-2456 A-26BINVADER Scale112 Wingspan Wing area 70 5405 sq Wing loading229 twin 25s instruction Manual Included PLANS 4 sh$58 Fiberglass cowls svaliable SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS mrnruV OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/ 2A TEXACO PLAYBOY SR KIT 112A 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 & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS down side though 10/Ss performance doesnt produce much way coefficient lift therefore isnt airfoil would want use model designed light lift conditions however have abundant lift might consider using airfoil next design elicopters/Jolly Continued page 83 Honestly am amazed smooth gear train example Everything tight isnt slop anywhere Helicopter truly high quality machine Its going next weekend before can fly Alpha II please come back next month Ill let know what find Besides want try couple sets blades will give opportunity put few gallons through Alpha before wrap up Robert Teoh Goes Home just heard Tom Dooley during conversation told well known Heli-flier collector around nice guy Robert Teoh will leaving Atlanta area will returning come country Malaysia know Roberts friends will join wishing Robert fond farewell Good luck Robert hope able continue favorite hobby back home think bad day department called Dan Melnik Vertical Flight Technologies other night order some new FAI carbon blades seemed little down asked what bothering him Well hasnt great year Dan seems Tangerine lost number ship during practice day before contest During contest stretched auto farther Kalt wanted go awful boom strike last weekend went down Ernie Hubers Fun Fly new ship Everything going well lot swell people getting some flying Dan mid aired Miniature Aircraft X-Cell 40 wiping out both ships Unbeknownst Dan two werent casualties Some poor guy hovering near pits lost ship piece mid aired ships went through rotor disc predictable results Some days just doesnt pay get up Hirobo Vertol Ive working Hirobo Vertol tandem ship have truly satisfied anybody out really flying circuits general has successful Helicopter please contact Id love publish findings BCNU RC Electrics/Kopski Continued page 85 United States Electric Team will seek claim F3E Gold Holland year US represented team Jerry Bridgeman Steve Neu Jasin Perrin Ive met Steve January 1992 MA have corresponded both him Jasin Perrin can tell guys serious say because along hundreds witnessed spectacular F3E demonstration Steve put KRC 1991 performance nothing routine about clearly convinced present lots special effort dedication went both plane pilot performance-polishing Following dazzling demonstration members KRC wasted no time committing support F3E team Im well aware readers both familiar much interested personally participating F3E Nor Ihistorically after seeing Steve planes cant help feel supportive pursuit despite limited popular interest International Electric competition relatively new American modelers past attempts arena have fallen short 174 Model Aviation 1/4 Scale Wingspan Wing area Wing loading 338oz OUR 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 full success However thrust continues Im believe team attempt gold good us just E-fliers just modelers usas Americanjust like Olympics Next month Ill have some descriptive information regarding nature F3E flying Meanwhile Id like suggest and/or club might want consider offering some support Electric team team relies heavily industry other support can help share did KRC mailing contribution US Electric Flight Team 20 Lemon Ct Hillsborough CA 94010-6241 write tell em Bob sent topic unceasing reader inquiry dual subject motor batteries charging think Electric columnist has covered aspects combined subject often anything else What see continual growth Electric general column readership particular some topics previously coveredlike onemust periodically revisited month offers some topical info especially new entrant fun world Electrics experienced E-fliers among us may find bit boring begin nickel-cadmium motor batteries indeed batteries made up individual cells cell basic building block its characteristics alone determine basic characteristics total battery pack thinks battery fuel tank sorts cell capacity number cells fully describe energy storage capability tank Cell battery size capacity expressed ounces like wet fuel tank rather current X time number expression represents what cell battery cells nominally capable storing delivering Thus cells have ampere-hours milliampere-hours ampere-minutes milliampere-minutes capacity terms fully interchangeable provided appropriate scale factor also used easy way think cell capacity nominal time needed fully charge fully discharge cell ampere current proper correct ampere rarely experienced Electric applications Thus its really practical view cell capacity generalized way total product current X time ncrease decrease either term other adjusts appropriately downward upward respectively keep final value constant Think filling emptying water bottle Either action takes longer trickle low current pouring dumping high current case bottle size bottle size does change Popular Electric cell sizes capacities include limited 900 1200 milliampere-hours mAh two examples could just well have expressed 09 12 ampere-hours respectively term milli means 1/1000 50 12 Ah equals 1200 mAh Similarly 1 2-Ah cell battery could also described 72 ampereminute cell battery follows AC ff7L1k1 Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 May1992 175 Obechi Large Sheets Please call 404 642-0645 send SASE #7 Creekpark Ct Roswell GA 30076 ADVANCED AERO PRODUCTS YS & OS SPASS 120 rwv EXHAuST SYSTEMS POR PATTERN AIRCRAFT AND ULTIMATE WE SIUCONE COUPLERS AND TAIl PIPES ALSO AVAILABLE GML O TF WORAATN OAI OJWES ffiTO RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 * Internal over-voltage protection * Diode battery protection * 4-cell nicad operation fact 60 minutes hour 12 ampere-hours times 60 minutes per hour equals 72 ampereminutes An O9-Ah pack could described 54 Am some convenience describing capacity minutes descriptor will see some typical Electric modeling examples above ideas Consider motor drawing 20 amps 1 2-Ah packa perfectly reasonable condition fully charged 1200 milliampere-hour battery would run motor 12 Its EasyTo SiN1 Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column Mode/A vat/on Nov 90 Easy assemble battery starter PATENT PENDING See ACE R/C dealer send check money order KRANKING Safety Starters PO Box 2563 Beaumont Texas 77704 Add $700 packaging shipping UPS Texas rosideeto add 825% sales tax Allow approximately two weeks delivery Ah/20 amps hours Since 60 minutes hour would translate 006 x 60 36 minutes Since 60 seconds minute turn translates 3 mm 36 sec As another example consider recharging same pack Lets say charger delivers steady 4 amps charge current Thus pack would reach nominal full charge 12 Ah/4 amps ours As above translates 18 minutes Throughout above discussions have used word nominal several times because example nominal named label cell capacity hardly ever experienced exactly Thus typical 1200mAh cell will display just about capacity Actual capacity has some variability due manufacturing tolerances also due usage parameters example fully charged pack will display apparent capacity low discharge current high discharge PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Unsurpasr IA current Also fully charged may really achieved somewhat charging predicted label size actual practice variations rather small careful observation will reveal existence feel compelled warn such cell has two terminalsone end physical cell designated named positive negative usual appearance positive terminal centered raised bump cell end usual appearance negative terminal simply flat surface cell may may also have or s stamped cell ends printed cell label motor batteries always have cells wired series means positive terminal cell connected negative terminal next overall pack winds up positive negative output terminal series connection cells results overall battery output voltage being sum individual cells 176 Model Aviation REICHMUTH eledronic advance has no moving parts advance totally controlled engine speed Engines require no modificeation Zenoahs Quadras INSTABLOCK fast simple way convert engine BEFORE buy.ask. Does ignition have * Electronic automatic advance * Regulated power supply PRICES lees battery/spark plug Single cylinder$107 Twin cylinder$134 Inatablock pre-mounted w/syatem$16 Instablock w/sensors mounted 2nd engine$32 Stitt 480 1/4x32 sparkplug$10 NGK ME8 1/4x32 sparkplug -$13 NGK 10mm sparkplug$3 Shipping handling$4 COD$4 2nd day air add$3 Performance WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No 324 SEND $100 FOR PRICE LIST AND CATALOG 7ffrebun RIC 1db-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-Idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 151 ca * Wayne NJ 07470 number cells has no effect whatsoever battery capacity However direcfly affects total stored energy will seen later because same charge discharge currents flow equally through cells same time no matter should clear cells pack must always same size Thus example 12 Ah 09 Ah sizes described above never mixed within pack Battery charging has evolved range techniques preferences chargers market designed operate different ways accomplish charging task As generalization model motor flight batteries can charged appropriate current usually about 15 mm little fact chargers include timer-switches can set particular time interval use myself other chargers however have no timers instead use sophisticated charge-termination techniques rely certain battery characteristics signal charger electronics stop charging process pack full Both voltagepeak techniques thermal-detection schemes used former being popular case should clear 15-mm charging lot different familiar overnight variety routinely used charge radio transmitter receiver battery packs Its experience timercontrolled charger fully practical device used properly peakdetector kind will usually provide somewhat flight time properly mean setting charge current value such chargers 15-mm timer will allow pack almost filled assuming pack empty begin Lets look little moresince ask consider packs empty otherwise very flyable plane wont fly means flight goes will point model will sink despite fact prop may still turning battery pack voltage has dropped level rpm insufficient level flight continue empty course plane wont fly fully charged pack description non sequitur Anyway just little field experience empty condition readily recognized telltale rpm drop normal Empty means can proceed fill pack predictable way case popular 12 Ah-size packs personally charge about 45 amps 15 mm represents total charge little below label value helps assure battery does overfill Note example Ive chosen desired charge time period really charger timer has chosen adjusted current accordingly cell exact 12 Ah capacity would exactly filled 12 Ah/025 hour mp current value Id rather safe sorry hence choice 45-amp setting look flight profile graphs March April columns youll see flight times safe timed charges very comfortable occasions want fully charge motor battery Ill use peakcharger lets set forget charge conditions charger stops know Im going have full charge RC car folks have devised some techniques squeezing bit out cell performancebut thats different story altogether given flight profiles mentioned previously would peak-charge reason would flying competitive event required out pack might example All-Up/Last-Down event Another reason would experimentation dont peak-charge time thing peak-charging typically May1992 177 CatalogsThe Best Scale Best Scale$400 ASPModel aircraft Plans Handbook$500 ASPScale Drawin9 Plans Book$500 RCModel World Const Guide$600 VTHGerman Plans Book$600 Yuad add $500 7u5si je J-5 uIa~h Call 714 8853959 credit card orders BRISTOL Mib Span 1055 351 scale $3600 i-$29o pp Winners ToledoThe Masters others .Bob Holman Box 741 San Berdo CA 92402. WITH THE UP1 ADJUSTABLE SPEED RETRACT VALVE REALISTIC MOTION FROM AIR RETRACTS unique valve thatSpeed range combines up and1-20 seconds up down switching1-20 seconds down function twoConstant speed over infinitely adjustablethe 20-100 psi speed control valvesoperating range Body sizeWeight 20 gins 1 2x 75x 375 inches4 air outlets NEW Airline Introductory price $2495 US quarter turn quick-disconnects $595 US NEW NEW 150 psi rated tubing 5 fteach grey clear lOft per pack $595 US NEW NEW Airline Tee fittings2 per pack $295 US NEW Dealer inquiries welcomeShipping$450 ULTRA PRECISION Technical Services Limited 1244 Honeysuckle Crescent Oakville Ontario L6H 2S8 Canada Phone 416842 1703 takes longer like sport-flylots several planes car feel can average spend time air timed charges Besides have higher-capability chargers timercontrolled have peak-chargers clear advantage peakcharging offers general need concerned about beginning-ofcharge condition pack Thus pack can have some partial charge empty still safely charged kind charger readily possible timer-controlled charger since cannot tell sure much tank begin Therefore would know much charge could safely pumped Theres lot info share batteries charging topic will continue future columns Beginning Electric fliers may want keep installment combine future additions topical area both will have less letter writing So ends another column Please enclose SASE correspondence d like reply Happy Quiet Electric Landings Everyone RC AerobaticsNan Putte Continued page 86 both indiscretions deserve should awarded scores zero plan use 150 rule Interest Senior Pattern Association SPA really taking off seems get letter phone call nearly day subject Before go further let defuse few comments Ive received Apparently some people think SPA group fliers trying escape Turnaround competition todays airplanes engines Everyone Ive talked corresponded about SPA excited about because airplanes simpler gives participants great nostalgic feeling SPA advocating anything other having fun some pre-1970 airplanes vintage maneuver schedules Anyone thinks SPA wants away Turnaround todays competition airplanes engines misinformed started looking around airplanes suitable SPA chances finding old kits seemed pretty grim did find Taurus kit line few others before deciding build A-6 Intruder assume people will same situation start looking something build Let give people hand problem mail has recently included opportunities obtaining plans kits SPA-eligible airplanes first listings received Bill LaRue Classic Air Models Co PO Box 784 Fruitland Pafk FL 34731 Tel 904/7877475 Bill sent lists Control Line Radio Control airplane kits available permission originators reproductions original kits plans wrote told Bill wasnt interested CL kits RC airplane list looks great list includes Citron Daddy Rabbit El Gringo Stormer Flat Top Stormer Sweet Tater Taurus Tiger Tail Kwik Fli Candy Phoenix Thunderstormer A-6 Intruder Pattern airplanes name afew Kit prices vary slightly range o1~ NEW MicroJet Package TO BUILD FAN POWER MODULE Entire module meighs lust 26 grams 05e ounce thrust FIies modets 60 90 in2 & up 3 ounces Peckage includes motor 3o5gmatt NtCd battery wiring haroess charger parts comptete instructions build tan unit Send SI $1995 P&H In Cataleg 178 Model Aviation nee SC PLANE VIDEO GIVES YOU LIBRARY 01 VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS BUILDING IT RIGHT ThE FIRST TIME 2-2 HOIJR VIDEOS SHOWING ALL DETAilS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUDING WING CONSTRUCTION RADIO INSTALLATION PUSIIRODS ALIGNMENT SALANCING ANI MUCH MORE *3495 shippIng 6800 foreign orders AEROBAliCS & GROUND SCHOOl 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKE -OPUS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE *1905 sNpping *600 foreign ordem BUILDING WITH FOAM 2-HOUR VIDEO PROVIDING INFORMATION ON FOAM WING CORES INSTALLING RETRACTS PRIMING COVERING WITH EG CLOTH PAINTING & DETAILING *1995 shippIng *600 foreign orders TAPES AVAILABLE N I/U-IS ONLY SEND CHECK OR MO TO PLANE VIDEO PD BOX 23126 dIVE IA 50325 CALL 1-800-383-8251 OR etecoi 515-2230807 34 HOUR TOLL FREE
Edition: Model Aviation - 1992/05
Page Numbers: 84, 85, 174, 175, 176, 177, 178
MAY 2 AND 3 years dates Sixth Annual Current News Challenge Electric meet sponsored Winston-Salem RC Club year Contest Director CD Charlie Spear will recognize Charlies name co-author monthly Electric column RC Report magazine meet dates significant departure mid-August timing has characterized former schedules Charlie tells us modification bowing pressure Yankee friends void some heat Southern summer Bridgema Neu Perrin 1992 US F3E team will wearing emblem Wand Championships Hoi iand coming August Brian Chan chair man F3E Team Fund Raising Commit tee invites everyone support team buying raft tickets merchandise now ing donated modeiing industry Raffle tickets wiii avaliabie after aii donations taiiied Right now can heip pur chasing team T-shirt patch pin re spectiveiy $12 $5 $3 Send payment US Eiectrtc Flight Team 20 Lemon Ct Hilisborough CA 94010-6214 new Electrics may first sight NI-Cd battery ceiis represent ative ceiis various size capacity usuaiiy pre-assembied ready-made battery packs can aiso buiid own pack individuai celia ceiis positive insi end bump fiat surface negative Some celia come pre attached soidering iugs Some have descriptive info piastic outer insuiating wrapper Pic tured 800 900 1200 1700 mAh ceiis Au photos author Anyway addition prizes Scale events 610 618 Meet location Beauty Most Impressive All-Up/Last- Thrift Field Advance North Carolina Down awards available AMA full particulars can obtained 84 Model Aviation Electrics Bob Kopski 25 West End Dr Lansdale PA 19440 THIS MONTHS TOPICS 1 Meet announce mentsAdvance NC Kent WA 2 American F3E effort 3 Batteries charg ing beginners individusi ceiis building blocks battery battery interconnection ceii Shown 2- 4- 6- 7- 18-ceii batteries motor batteries have ceils wired series per text packs shown homemade except Astro pack close-up photo homemade seven-cell 1700 mAh nickel-cadmium Ni-Cd motor bat tery pack showing positive tive rconnection cells known series wiring Overall pack has two output terminalsin case two wires wire positive other negative Voltage outputs sum individual cell voltages 7 x 12 olts nominal pack capacity same individual cells 17 Ah writing Charlie Spear 288 Holly Ln Mocksville NC 27828 Next up Tenth Annual Electric RC Fly-In sponsored Puget Sound Electric Model Flyers June 27-28 PSEMF home field Model Builders Electric columnist Mitch Poling although Mitch presently writing temporary location Germany Anyway CD Bernard Cawley tells years meet has Schematic Symbols Cell Two Cells series connected Multi-Cells series connected Pictorial Symbols -LIlY -IZITLZIITypical wiring symbois used depict batteries ceil interconnections may see time time various articies about Electrica weii other RC articles prizes trophies Most Aerobatic Best Scale Longest Flight Most Impressive Best Multi-Motor seeking true competition will AMA 609 event Thats CD will also awarding discretionary Special Achievement awards location fun Boeing Kent Space Center Field Kent Washington can get specifics contacting Bernard Cawley 29838 48th Ave S Auburn WA 98001 telephone 206 839-9157 Assistant CD Ben Almojuela 1941 6th Ave W Seattle WA 98119 telephone 206 283-3407 contact Charlie Bernard Ben please tell em Bob sent ya 1992 Olympics just days away wrote column Olympics events will history issue received However theres another world-class event just ahead should special interest readers columnthe 1992 FM F3E World Championships coming August Continued page 174 May 1992 85 NI-Cd motor battery iuei tank heavy relatively speaking 1 8-cell 12 Ah pack weighs little over 2 ib seen digital scaic Kopakis cobait 40powered acrobatIc ship piane weighs 5 ib 8 oz motor battery typicaiiy 30 40% finished weight Eiectrics C-130 HERKY-BIRD 130118 Wingspan515 Wing area 87 272aq 752aq Wing load 335 oz 33 oz natruction manual included PLANS 3 sh $48 $68 115 scale nacelles available plans include model specs weight schedule scale source information experienced 645 5058 sq PLANS 4 sh Canopy air intakes & access Rolled & postpaid IUSAby PALMER PLANS 21 0-1/2 EL CAMINO DR Dept C BEVERLY HILLS CA 90212 310 274-2456 A-26BINVADER Scale112 Wingspan Wing area 70 5405 sq Wing loading229 twin 25s instruction Manual Included PLANS 4 sh$58 Fiberglass cowls svaliable SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS mrnruV OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/ 2A TEXACO PLAYBOY SR KIT 112A 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 & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS down side though 10/Ss performance doesnt produce much way coefficient lift therefore isnt airfoil would want use model designed light lift conditions however have abundant lift might consider using airfoil next design elicopters/Jolly Continued page 83 Honestly am amazed smooth gear train example Everything tight isnt slop anywhere Helicopter truly high quality machine Its going next weekend before can fly Alpha II please come back next month Ill let know what find Besides want try couple sets blades will give opportunity put few gallons through Alpha before wrap up Robert Teoh Goes Home just heard Tom Dooley during conversation told well known Heli-flier collector around nice guy Robert Teoh will leaving Atlanta area will returning come country Malaysia know Roberts friends will join wishing Robert fond farewell Good luck Robert hope able continue favorite hobby back home think bad day department called Dan Melnik Vertical Flight Technologies other night order some new FAI carbon blades seemed little down asked what bothering him Well hasnt great year Dan seems Tangerine lost number ship during practice day before contest During contest stretched auto farther Kalt wanted go awful boom strike last weekend went down Ernie Hubers Fun Fly new ship Everything going well lot swell people getting some flying Dan mid aired Miniature Aircraft X-Cell 40 wiping out both ships Unbeknownst Dan two werent casualties Some poor guy hovering near pits lost ship piece mid aired ships went through rotor disc predictable results Some days just doesnt pay get up Hirobo Vertol Ive working Hirobo Vertol tandem ship have truly satisfied anybody out really flying circuits general has successful Helicopter please contact Id love publish findings BCNU RC Electrics/Kopski Continued page 85 United States Electric Team will seek claim F3E Gold Holland year US represented team Jerry Bridgeman Steve Neu Jasin Perrin Ive met Steve January 1992 MA have corresponded both him Jasin Perrin can tell guys serious say because along hundreds witnessed spectacular F3E demonstration Steve put KRC 1991 performance nothing routine about clearly convinced present lots special effort dedication went both plane pilot performance-polishing Following dazzling demonstration members KRC wasted no time committing support F3E team Im well aware readers both familiar much interested personally participating F3E Nor Ihistorically after seeing Steve planes cant help feel supportive pursuit despite limited popular interest International Electric competition relatively new American modelers past attempts arena have fallen short 174 Model Aviation 1/4 Scale Wingspan Wing area Wing loading 338oz OUR 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 full success However thrust continues Im believe team attempt gold good us just E-fliers just modelers usas Americanjust like Olympics Next month Ill have some descriptive information regarding nature F3E flying Meanwhile Id like suggest and/or club might want consider offering some support Electric team team relies heavily industry other support can help share did KRC mailing contribution US Electric Flight Team 20 Lemon Ct Hillsborough CA 94010-6241 write tell em Bob sent topic unceasing reader inquiry dual subject motor batteries charging think Electric columnist has covered aspects combined subject often anything else What see continual growth Electric general column readership particular some topics previously coveredlike onemust periodically revisited month offers some topical info especially new entrant fun world Electrics experienced E-fliers among us may find bit boring begin nickel-cadmium motor batteries indeed batteries made up individual cells cell basic building block its characteristics alone determine basic characteristics total battery pack thinks battery fuel tank sorts cell capacity number cells fully describe energy storage capability tank Cell battery size capacity expressed ounces like wet fuel tank rather current X time number expression represents what cell battery cells nominally capable storing delivering Thus cells have ampere-hours milliampere-hours ampere-minutes milliampere-minutes capacity terms fully interchangeable provided appropriate scale factor also used easy way think cell capacity nominal time needed fully charge fully discharge cell ampere current proper correct ampere rarely experienced Electric applications Thus its really practical view cell capacity generalized way total product current X time ncrease decrease either term other adjusts appropriately downward upward respectively keep final value constant Think filling emptying water bottle Either action takes longer trickle low current pouring dumping high current case bottle size bottle size does change Popular Electric cell sizes capacities include limited 900 1200 milliampere-hours mAh two examples could just well have expressed 09 12 ampere-hours respectively term milli means 1/1000 50 12 Ah equals 1200 mAh Similarly 1 2-Ah cell battery could also described 72 ampereminute cell battery follows AC ff7L1k1 Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 May1992 175 Obechi Large Sheets Please call 404 642-0645 send SASE #7 Creekpark Ct Roswell GA 30076 ADVANCED AERO PRODUCTS YS & OS SPASS 120 rwv EXHAuST SYSTEMS POR PATTERN AIRCRAFT AND ULTIMATE WE SIUCONE COUPLERS AND TAIl PIPES ALSO AVAILABLE GML O TF WORAATN OAI OJWES ffiTO RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 * Internal over-voltage protection * Diode battery protection * 4-cell nicad operation fact 60 minutes hour 12 ampere-hours times 60 minutes per hour equals 72 ampereminutes An O9-Ah pack could described 54 Am some convenience describing capacity minutes descriptor will see some typical Electric modeling examples above ideas Consider motor drawing 20 amps 1 2-Ah packa perfectly reasonable condition fully charged 1200 milliampere-hour battery would run motor 12 Its EasyTo SiN1 Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column Mode/A vat/on Nov 90 Easy assemble battery starter PATENT PENDING See ACE R/C dealer send check money order KRANKING Safety Starters PO Box 2563 Beaumont Texas 77704 Add $700 packaging shipping UPS Texas rosideeto add 825% sales tax Allow approximately two weeks delivery Ah/20 amps hours Since 60 minutes hour would translate 006 x 60 36 minutes Since 60 seconds minute turn translates 3 mm 36 sec As another example consider recharging same pack Lets say charger delivers steady 4 amps charge current Thus pack would reach nominal full charge 12 Ah/4 amps ours As above translates 18 minutes Throughout above discussions have used word nominal several times because example nominal named label cell capacity hardly ever experienced exactly Thus typical 1200mAh cell will display just about capacity Actual capacity has some variability due manufacturing tolerances also due usage parameters example fully charged pack will display apparent capacity low discharge current high discharge PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Unsurpasr IA current Also fully charged may really achieved somewhat charging predicted label size actual practice variations rather small careful observation will reveal existence feel compelled warn such cell has two terminalsone end physical cell designated named positive negative usual appearance positive terminal centered raised bump cell end usual appearance negative terminal simply flat surface cell may may also have or s stamped cell ends printed cell label motor batteries always have cells wired series means positive terminal cell connected negative terminal next overall pack winds up positive negative output terminal series connection cells results overall battery output voltage being sum individual cells 176 Model Aviation REICHMUTH eledronic advance has no moving parts advance totally controlled engine speed Engines require no modificeation Zenoahs Quadras INSTABLOCK fast simple way convert engine BEFORE buy.ask. Does ignition have * Electronic automatic advance * Regulated power supply PRICES lees battery/spark plug Single cylinder$107 Twin cylinder$134 Inatablock pre-mounted w/syatem$16 Instablock w/sensors mounted 2nd engine$32 Stitt 480 1/4x32 sparkplug$10 NGK ME8 1/4x32 sparkplug -$13 NGK 10mm sparkplug$3 Shipping handling$4 COD$4 2nd day air add$3 Performance WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No 324 SEND $100 FOR PRICE LIST AND CATALOG 7ffrebun RIC 1db-Bar Glow Plugs Long Short$209 Only Also. Traditional line non-Idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $169 Swanson Associates PO Box 151 ca * Wayne NJ 07470 number cells has no effect whatsoever battery capacity However direcfly affects total stored energy will seen later because same charge discharge currents flow equally through cells same time no matter should clear cells pack must always same size Thus example 12 Ah 09 Ah sizes described above never mixed within pack Battery charging has evolved range techniques preferences chargers market designed operate different ways accomplish charging task As generalization model motor flight batteries can charged appropriate current usually about 15 mm little fact chargers include timer-switches can set particular time interval use myself other chargers however have no timers instead use sophisticated charge-termination techniques rely certain battery characteristics signal charger electronics stop charging process pack full Both voltagepeak techniques thermal-detection schemes used former being popular case should clear 15-mm charging lot different familiar overnight variety routinely used charge radio transmitter receiver battery packs Its experience timercontrolled charger fully practical device used properly peakdetector kind will usually provide somewhat flight time properly mean setting charge current value such chargers 15-mm timer will allow pack almost filled assuming pack empty begin Lets look little moresince ask consider packs empty otherwise very flyable plane wont fly means flight goes will point model will sink despite fact prop may still turning battery pack voltage has dropped level rpm insufficient level flight continue empty course plane wont fly fully charged pack description non sequitur Anyway just little field experience empty condition readily recognized telltale rpm drop normal Empty means can proceed fill pack predictable way case popular 12 Ah-size packs personally charge about 45 amps 15 mm represents total charge little below label value helps assure battery does overfill Note example Ive chosen desired charge time period really charger timer has chosen adjusted current accordingly cell exact 12 Ah capacity would exactly filled 12 Ah/025 hour mp current value Id rather safe sorry hence choice 45-amp setting look flight profile graphs March April columns youll see flight times safe timed charges very comfortable occasions want fully charge motor battery Ill use peakcharger lets set forget charge conditions charger stops know Im going have full charge RC car folks have devised some techniques squeezing bit out cell performancebut thats different story altogether given flight profiles mentioned previously would peak-charge reason would flying competitive event required out pack might example All-Up/Last-Down event Another reason would experimentation dont peak-charge time thing peak-charging typically May1992 177 CatalogsThe Best Scale Best Scale$400 ASPModel aircraft Plans Handbook$500 ASPScale Drawin9 Plans Book$500 RCModel World Const Guide$600 VTHGerman Plans Book$600 Yuad add $500 7u5si je J-5 uIa~h Call 714 8853959 credit card orders BRISTOL Mib Span 1055 351 scale $3600 i-$29o pp Winners ToledoThe Masters others .Bob Holman Box 741 San Berdo CA 92402. WITH THE UP1 ADJUSTABLE SPEED RETRACT VALVE REALISTIC MOTION FROM AIR RETRACTS unique valve thatSpeed range combines up and1-20 seconds up down switching1-20 seconds down function twoConstant speed over infinitely adjustablethe 20-100 psi speed control valvesoperating range Body sizeWeight 20 gins 1 2x 75x 375 inches4 air outlets NEW Airline Introductory price $2495 US quarter turn quick-disconnects $595 US NEW NEW 150 psi rated tubing 5 fteach grey clear lOft per pack $595 US NEW NEW Airline Tee fittings2 per pack $295 US NEW Dealer inquiries welcomeShipping$450 ULTRA PRECISION Technical Services Limited 1244 Honeysuckle Crescent Oakville Ontario L6H 2S8 Canada Phone 416842 1703 takes longer like sport-flylots several planes car feel can average spend time air timed charges Besides have higher-capability chargers timercontrolled have peak-chargers clear advantage peakcharging offers general need concerned about beginning-ofcharge condition pack Thus pack can have some partial charge empty still safely charged kind charger readily possible timer-controlled charger since cannot tell sure much tank begin Therefore would know much charge could safely pumped Theres lot info share batteries charging topic will continue future columns Beginning Electric fliers may want keep installment combine future additions topical area both will have less letter writing So ends another column Please enclose SASE correspondence d like reply Happy Quiet Electric Landings Everyone RC AerobaticsNan Putte Continued page 86 both indiscretions deserve should awarded scores zero plan use 150 rule Interest Senior Pattern Association SPA really taking off seems get letter phone call nearly day subject Before go further let defuse few comments Ive received Apparently some people think SPA group fliers trying escape Turnaround competition todays airplanes engines Everyone Ive talked corresponded about SPA excited about because airplanes simpler gives participants great nostalgic feeling SPA advocating anything other having fun some pre-1970 airplanes vintage maneuver schedules Anyone thinks SPA wants away Turnaround todays competition airplanes engines misinformed started looking around airplanes suitable SPA chances finding old kits seemed pretty grim did find Taurus kit line few others before deciding build A-6 Intruder assume people will same situation start looking something build Let give people hand problem mail has recently included opportunities obtaining plans kits SPA-eligible airplanes first listings received Bill LaRue Classic Air Models Co PO Box 784 Fruitland Pafk FL 34731 Tel 904/7877475 Bill sent lists Control Line Radio Control airplane kits available permission originators reproductions original kits plans wrote told Bill wasnt interested CL kits RC airplane list looks great list includes Citron Daddy Rabbit El Gringo Stormer Flat Top Stormer Sweet Tater Taurus Tiger Tail Kwik Fli Candy Phoenix Thunderstormer A-6 Intruder Pattern airplanes name afew Kit prices vary slightly range o1~ NEW MicroJet Package TO BUILD FAN POWER MODULE Entire module meighs lust 26 grams 05e ounce thrust FIies modets 60 90 in2 & up 3 ounces Peckage includes motor 3o5gmatt NtCd battery wiring haroess charger parts comptete instructions build tan unit Send SI $1995 P&H In Cataleg 178 Model Aviation nee SC PLANE VIDEO GIVES YOU LIBRARY 01 VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS BUILDING IT RIGHT ThE FIRST TIME 2-2 HOIJR VIDEOS SHOWING ALL DETAilS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUDING WING CONSTRUCTION RADIO INSTALLATION PUSIIRODS ALIGNMENT SALANCING ANI MUCH MORE *3495 shippIng 6800 foreign orders AEROBAliCS & GROUND SCHOOl 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKE -OPUS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE *1905 sNpping *600 foreign ordem BUILDING WITH FOAM 2-HOUR VIDEO PROVIDING INFORMATION ON FOAM WING CORES INSTALLING RETRACTS PRIMING COVERING WITH EG CLOTH PAINTING & DETAILING *1995 shippIng *600 foreign orders TAPES AVAILABLE N I/U-IS ONLY SEND CHECK OR MO TO PLANE VIDEO PD BOX 23126 dIVE IA 50325 CALL 1-800-383-8251 OR etecoi 515-2230807 34 HOUR TOLL FREE