LAST ISSUE opened some meet announce ments including Second Annual Elec trifest hosted Sb Fliers Morro Bay CA area time very little info pass along now have some details meet serious contest compared fun-fly format includes 7-cell Sail plane 7-cell Old-Timer Unlimited Sailplane Un limited Old-Timer Pylon Pattern Sport Scale events first four events above will flown four rounds beginning 900 am Saturday Based literature received will significant prizes won pos sibility dinner/social Saturday Pre registration $10 till August 1 $15 thereafter Please contact CD Cal Drake Box 1557 Morro Bay CA 93442 info Tell im Bob sent ya sure makes sound like weekend well covered end country great meets since 10th Annual KRC Electric Fly same weekend Pennsylvania Good luck happy landings everyone attending both ac tivities Gulf States Electric Fly-In scheduled Saturday September 30 Sunday October 1 sponsored Tammany Aero Club event anything Electric features Scale event AMA rules demonstration flights work shops swap shops concession stand awards prizes several fun categories free Cajun cookout contestants families flying site Tammany Aero Club Field Goodbee LA information contact Boyd OBrien PO Box 7153 Metairie LA 70010 telephone 1-504/835-5212 can also contact Ben Mathews 101 Mulberry Dr Metai- terializes what details areso keep ne LA 70005 telephone 1-504/833-5589 readin column Tentative plans underway two-day Elec tric meet Cape Cod Dates will October 2829 Sounds like good time orange-and-black planes early word Charlie Sylvia CS Flight Systems Ill let know maThe ElectroStreak Great Planes men tioned May June columns year May column brought response Tom Stryker designer model Tom wrote say some kind things about 46 Model Aviation Radio Control Electrics Bob Kopski 25 West End Dr Lansdale PA 19446 LLoyd Roberts Camden ME 8-ft-span 113/2-lb Turbo Beaver flies Astro 60 28 cells Hobby Lobbys Chip variant UHU Glider ailerons choice two wing sizes Graupners neat packaging power system Electro UHU L contains Speed 600 motor folding scimitar prop spinner assorted tools Tom Stryker designer ElectroStreak likes additional access hatches plane R bottom forward hatch between F2 F3 allow access motor speed control rear hatch aft F4 allows access servos Kurt Klingebiel Silver Spring MD now 12 years old has flying RC since 7 ElectroStreak has flown vari ety 7-cell battery packs com ments months column column comment hatch installation ElectroStreak pictured May photos month shows Im hatch preferences Tom himself has two own kit-built Streaks hatches shown located bottom model made /16 ply stock model set up landing gear also Tom doesnt use time Anyway Tom feels bottom hatches preferred its easier fully streamline top deck behind mo tor thats built solid case what can say ElectroStreak better off hatchesaccording both Tom Bob Tom went discuss possibility large Southeastern Electric meet next year Flor ida possible location would RC World has extensive facilities effect Tom ex plained intent make meet country Right now very early plan ning stages details firm up Ill pass along everything know column Best wishes Tom et al planning Another ElectroStreak photo month has some interesting info go along built Keith Klingebiel Silver Spring MD Keith built rudder save some weighs Beyond experimenting different seven-cell packs include 1200 mAh SCRs SR 1800 same weight flies full bore five minutes SR 1250 gives about three minutes full out about same time given SCRs first two packs all-up weight about 36 oz drops about 31 oz Continued page 153 Os ORDERS SHIPPED AY RECEIVED WARBIRD VIDE ANY TWO OUR 23RD YEAR VIDEOS ONLY $7595 ONLY $10795 SPE6IAL IIROD1JTORY DFFER ALL 6 VIDEOS ONLY $19995 WARBIRD CHECKOUT VOL Flying P-40 Warhawk Corsair Hellcat SB2-A Buccanneer Avenger NF 1325 Programs2 Hr Only $3995 WARBIRD CHECKOUT VOL II Flying P-38 B-25 Mitchell Bomber P-61 Black Widow Invader NF 1454 Programsi 00 Mm Only $3995 WARBIRD CHECKOUT VOL III Flying P-Si Mustang A-20 Bomber P-39 Introduction P-39 Advanced NF 1514 ProgramsliD Mm Only $3995 CALL TOLL FREE IT CARDS Li Money Order Check Credit Card Master, Shi0ping Paid Continental US-Foreign add $500 NP VIDEO LIBRARY 2554 LINCOLN BLVD #54 B&P Associates Gives Total Plight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need padwgel Cycler-ChargerpadsPlus $5 SEtw cm & Gilled Cell Tvlckler *3496Regular Model.. *4696 ForPlus $3 SEtH1For field kit sinai Plus $3 SEtH Multiple&Ogelectric boat batteriesSpecify 612 24V Heavy Duty Model. 85896 sport WInch lerge boat andPlus $4 SEtH electric power charging batteriesSpecify 6 12V CaRa ProductsSASE h*rmaiion PO Box 221 606-067-6924Dealer ijries itwitadcanton SD 67013 September 1989 47 Graupners motor control switch has circuit ry allowing power RC receiver motor battery pack column WARBIRD CHECKOUT VOL V Flying B-29 Pre-Flight BI7E Flight 8-24 NF 1553 Programs107 Mm Only $3995 WARBIRD CHECKOUT VOL IV Flying P-47 3 parts Flying T-6 3 parts NF 1366 Programslb Mm Only $3995 MODERN JET FIGHTER Flying FIA1 8 Hornet Eagle F-16 Fl 6C Th,nlnhirrk F-1~ NF 1635 Programs60 J Day Night tax 90291 Last Call Module 7SF ATRCS retro-fit program will end Iecember 311989 sure get conversion soon ATRCSTM Advanced Technology Radio Control System Converts Module 7SP advanced computerized control system Stores four aircraft setups Includes seven different servo configurations Individual surface travel limits centering Single switch presets launch speed modes Full trailing edge control Enhanced mixing functions Crow landing capability User selectable cross trim capability Flap stick reversing Elevator camber VTR Automatic selection high ail rudder mixing launch landing modes Fully installed kit year limited warranty Control Systems Laboratories 238 5 Hillview Dr Milpitas CA 95035 408 946-4142 Airtrom~ Module 75P1 regiziered trademarks AixIronies Inc ancc Mr Ken Bates true expert field flying wings Contrary what might think plane difficult fly very sta ble makes very smooth controlled turns should able flown anyone has used ailerons before wing loading 6 8 oz per sq ft Javelin flies about same speed typ ical designs ballasted 10 12 oz per sq ft increase performance attributed low-profile drag racing cup tea bal last Javelin 10-oz-per-sq-ft loading ready leave competition starting gate Construction Javelin very simple Itll probably fastest-built plane youve attempted quite some time After once finish building wing done Additional specifics Javelin fol lows wingspan 56 wing area 560 sq weight 24-36 oz wing loading 6 10 oz per sq ft airfoil Eppler 168 construction foam core balsa sheeting Since Ive flying Javelin quite now can attest its truly remarkable design Its loads fun variety ot condi tions best costs $39 including shipping Contact Bob 521 96th Lane NE Blame MN 55434 tel 1-612/780-2737 Klingberg Wing Similar Javelin Klingberg Wing offers modeler true flying wing ie no vertical surfaces delivers outstanding performance What distinguishes Klingberg Wing Javelin method obtaining stability Javelin employs re flexed elevon technique Klingberg Wing uses wing twisting Simplifying task achieving proper wing twist unique build ing jig thats included kit built Wing spans 78 has 659 sq wing area weighs about 20 oz Now Klingberg Wirg enjoying con siderable success Rollin Klingberg pursuing couple new designs Slope fliers will find quite interesting Im sure anyone fol lows aviation casually aware recent roll-out B-2 Stealth Bomber fliers upon first seeing impressive bomber must have envisioned possibility making slope Well Rollin did just thirk about years IMS ow Pasadena unveiled fabulous rendition B-2 pro totype %5-scale made fiberglass foam weighed about four pounds Though theres possibility kit version available will designed power flight ducted fan Im hoping Rollin will stick Glider Rollins other new ship small X-wing ca nard will called X-cel Both upper lower wings have 36-in span total weight should about 20 oz Construction will balsa ply price should stand about $40 can expect see X-cel avail able sometime late year information contact Rollin Future Flight 1256 Prescott Ave Sunnyvale CA 94089 tel 1-408/735-8260 Falcon Two southern Californias betterknown Slope Sailplane designers Carl Mass Mike Reed Carls Viper Mikes Slopar have pictured previous columns Now duo has collaborated very interest ing flying wing though Carl Mike com mitted severe breach etiquette adding vertical fin planes performance makes up possible sin Capable consecutive side outside maneuvers thanks symmet rical airfoil developed its designers Fal con offers Slope flier much aerobatic per formance could hoped Falcon features wingspan 49 length 23 442 sq wing area all-up weight 22-32 oz depending type radio used $20 get foam wing cores plans instructions template sheet Get touch Mike 1775 Dumitru Way #B Corona CA 91720 time being thats about have say subject flying wings canards Com ing future columns Jerry Bridgemans incred ible Slope Racer Snipe Chris Fouquets amazing taileron-equipped aerobatic ship look Slope Soaring Nats time read Nats will have heldand first time ever Slope Soaring will part look new Scimitar RS Slope Racer RC Electrics/Kopski Continued page 47 t250s Keith says latter pack lighter weight allows Streak zip along SR batterys performance impressive Giant Electrics opening topic June column prompted reader Lloyd Roberts Camden ME send photo very im pressive 8-ft-span Turbo Beaver 11 -lb model motivated Astro 60 28 cells Lloyd says first flights very promis ing position Giant Scale Electric neat Continued page 1S4 September 1989 153 GLIDER RETRACTS Precision units made USA air craft quality materials Two 1 /4 scale size units choose Std up 10 lbs HO over 10 lbs $5000 ea $350 S&H CA res add 7010 tax Send Sase information glass 1/4 scale OG 202 fuselage 1/3 & 1 /5 scale retracts available soon Scale Glider Components 7034 FERN PLACE CARLSBAD CA 92009 16193 931-1438 PiE7/Made America American Technolegy R/C & U/C ENGINES 15 thru 61 Glow Plugs & Spark Plugs Ignition Engines 29 35 ORIGINAL REPLACEMENT PARTS Kraft 61 Cox Conquest 15 Testor/McCoy Series 21 Taipan 40 HGK Forster Remco Viking twin DC 09 diesel call arte free informatIon RJL Industries PO Box 5 - Sierra Ma&e CA 91024 818 359-0016 Catalog 14 BIGGER ever over 200 things have never seen before NEW Giant Telemaster NEW High-performance Electric Motors NEW Props accessories NEW Electric Airplanes worlds FASTEST electric plane NEW FAST boats NEW Steam boat NEW ORACOVER covering material NEW Helicopter NEW sailpianes NEW accessories Name Street Address City Hes requested info September KRC meet msybe well rewsrded big Beavers appearance very impressive catalog update has just come Out Its Hobby Lobbys Catalog #14 what makes very impressive many pages things Electric including least 11 new items include motors gear boxes folding props kits cover catalog Electrically impressive shows Graupners Werner Detweiler launching Race Rat Hobby Lobby has kit modified version model won 1988 Pylon event World Champs St Louis performance model awesomely described two ways will climb almost verti cally out sight five seconds 2 took contest-winning wet-powered Quickie 500 finished dead heat Hummm So much wet power Now could talk folks HL bringing KRC meet her neat-sounding plane new too Chip described ass version Electro UHU Glider ailerons optional wingspans capable aerobatics UHU super flierI knowso Chip sounds very ap pealing Anyway according David Martin HL can get $2-value Catalog #14 free call ing writing Hobby Lobby 5614 Franklin Pike Circle Brentwood TN 37027 telephone 1615/373-1444 Tell em Bob sent ya July column tabulated some detailed quan titative performance information sizeable sampling 05-size UGHHHHH motors want pass along some qualitative info about Ive flying Great Planes Gold Fire mo tor Skyvolts couple months very impressive Im using seven 1200mAh SCRs either 7 x 6 8 x 4 nylon prop good results addition own experi ence Im getting similar input readers Im seeing same thoughts appear some Elec tric newsletters basically fast-turning motor such best used faster-moving planes motor has opportunity unload ade quately Personally would choose use direct drive slower-moving model such Gliders OTs have accumu lated enough experience see long mo tor lastsan item interest since motor basically throwaway brushes replaceable far its working just great Part just great taking account its $2495 list $1995 Tower Another motor bringing favorable comments Hobby Lobby Speed 600 72 volt motor used previously men tioned Electro UHU sounds very appealing $1380 have opportunity try item yet Astros Mini-Challenger should readily avail able really time read Bob Boucher chief charge Heh Heb Astro called few days ago passed along info Mini-Challenger has mill well over year reason another has met delay after another Anyway Bob tells its really finally com ing out Mini-Challenger designed around co balt 035 version Astro will supply kit combo motor plus variation Scimitar folding prop used UHU kit per sonally can attest superb flight characteris tics Challenger know folks would really like good-flying model smaller two-meter version MiniChallenger should work Out well Also since 035 five- six-cell motor charging 12volt sources snap Astro has some other good things mill also includes new charging equipment peak-detecting shutoff circuits built dont have date yet Anyway Bob tells over years Astro has sold over million chargers charging nothing new Astro product line upgrade expansion going time BEC products increasing number pop ularity may have missed mean ing Battery Eliminator Circuits idea use motor battery power re ceiver system well items showing up market reader interest increasing evidenced incom ing mail general BEC circuitry works regulating higher motor battery voltage down 48 volts nominal receiver servos oper ate off thereby eliminating separate receiver battery few ounces too electronics monitors voltage level motor battery pack cuts off power motor before pack gets low place con tinued operation receiver risk other words can continue flying full radio control no motor power Representative BEC products include motor controller used Electro UHU new Futaba MCR 4A receiver built-in speed control 6- 7-cell motors have recent personal experience BEC idea Long ago did good say least So Ive avoided concept using separate receiver battery time past difficulties motor noise getting receiver problems motor battery getting low lost radio also have assume newer products have somehow beaten prob lem piped-in motor brush noise re ceiver Im going revisit BEC idea future think may bit behind times topical area April column pictured latest greatestand ugly possibleElectric interconnects Wormies presenta tion laid claim total title forever ugly mating devices things Electric Now wouldnt ya just know Mitch Poling author Model Builders Electric column longest-running know inventor old Slug Plug omnimate wrote warn has new competitive design underway Tapeworm So far hes designed name device Anyway Im worried truly know heart Wormies unbeatable unbearable Anyway what Mitch really wrote about two things has investiga tion effects motor-brush angle re ferred matter very briefly July col umn expressed intent in-depth pursuit topic later column Mitch has pub lished findings July MB strongly encourage serious readers read material next item Mitch passed along dis appointing news next year family moving Germany three years Wife San dra will serve Air Force doctor during time Mitch kids Victoria Andrew Continued page 1S8 154 Model Aviation ma StateZip HoBg HT MASTER 3-D Helicopter Flight Simulator Protects Investment Speeds up flight training time Easy Use Mini- Tune Pipes 1 5%-20% Power SuperQuiet Easy Install Light Weight Stock #3000 Shutlie Stock #3001 Concept 30 Stock #3002 Baron 28 30 & X-CelI 30 Accepts helicopter sizesSuper Tune master ALL helicopter flight manuevers simulated under full flight conditions Pipe have complete control movement forward reverse left rightup down Design tor 3600 rotation hover Flight Master essential mastering difficultSuper Power or-20% up Superuuiei nose-in maneuver Perfect flying skills expensive crash repairs andSuper Quality Material Super Light Weight downtime Protect investment models motors machinerySuper Easy Inatallation List $19995 Stock #3010 Headers Available Stock #1001 Floats Water Snow Escellent Training Aid tor Beginners 20-30 Size Stock #2009 50-60 Size Stock #2010 HOBBY DEALERS TAKE ADVANTAGE QF QUR QUALITt PRODUCTS AT DEALER PRICE PLEASE CALL DR WRITE FQR DETAILS List $59 759 E BROKAW RD SAN JOSE CA 95112 List S2914081 436-1325 CENTURY IMPORT & EXPORT RC Electrics/Kopski Continued page 154 tagging along Sorry see leave soil folks Anyway good news hia MB Electric column will continue will take some European flavor cause will liv ing Weisbaden Mitch describes ing near heart Electroflying Europe feel deeply indebted Mitch since early Electric writings about 18 years ago key factor getting seriously interested Electric first successful Electric flight February/March time frame 1972quite some time past Mitchs Anyway interest pursuit eventually lead association MA About Electrics series 1983/84 column some feature articles along way Indeed very issue marks beginning sixth writing year Thank Mitch wish well note Ill close another column Please forward comment question SASE please author name address ap pear column heading Late news Winston-Salem Radio Control Club Inc North Carolina has announced its third annual Electric fly-in scheduled August 19-20 1989 meet events include AllUp/Last-Down cash prizes plus prizes Most Aerobatic Beauty Contact CD Charles Spear 288 Holly Lane Mocksville NC 27028 late news CS Flight Systems see ad has new Sanyo 1800 SCRs stock $650 sound like winners weigh 60 grams 1200s weigh 51 grams have height 49mm l200s 51mm lot juice can little bitty bit bigger Tell em Bob sent ya Quiet Sate Happy Electric Landings Everyone RC Pylon Racing/Hager Continued page 49 enough divide up wisely assign groups frequencies solely specific competi tion categories Nats can de signed no 31M 20P combina tions within group itself Thats good news 2 bad news will have ex elusive use of 50 channels 20 kHz spacing will have exclusive use 7273 MHz band PRS stands Private Ra dio Service will have intervening frequen cies available assignment 10 kHz spacing channels use paging systems whatever can operate up 300 watts output will potential adjacentchannel interference vengeance al ready us metropolitan areas Los Angeles basin example December 1987 Jim Riccio San Ga briel Valley R/C League using ICOM 7000 spectrum analyzer located five such paging sys tems within 10 kHz present channels year later December 1988 number proliferated 25 conceivable could have strong pagers interspersed between virtually channels near future lot airplanes have inexplicably bitten dust LA last year Thats get ting rid obsolete equipment hard way solution Yes requires using narrowband receivers will reject adjacentchannel signal 85 kHz away either side frequency such equipment already available am happy say both Airtron ics Futaba JR radios have just added AMA s listing 1991-cerrtfied equipment Ed 3 new phenomenon will appear called second-order product interference 20P Watizzit say Briefly two chan nels 23 channel numbers apart such RCl2 RC43 example operated si multaneously produce beat 460 kHz 20 kHz x 23 kHz hits almost directly top 455 kHz IF frequency used single-conversion re ceivers deadly results receivers George Steiner dubs 460 Splat about 23 Skidoo Almost single-conversion receivers vulnerable since IF employed 455 kHz solution problem Yes Dual-conversion receivers use firststage IF frequency 107 MHz effec tively screens out 460 kHz beat reaching second IF stage still 455 kHz before other words insist running single-conversion receiver after January 1 1991 keep eye out anyone 23 channels away frequency unless enjoy re building airplanes 1 cant vouch accuracy follow ing story illustrates what 20P can Denver recently group flying near 158 Model Aviation PRACTICAL SIZED GIANT SCALE MODEL PLANS Fiberglass Cowlings Canopies Available F-i5 4 Span 77 DC-31 1/2 1140Span$4200 F4tJ CORSAIR2 1/4 193SpanS3000 A6M5 ZERO2 1/2 191Span$3000 Plans RK-20 CURTIS P402 1/2 194Span$3000 RK-740 Ducted Fans AT-6 TEXAN24 1101Span$3000 antom 35 Span $1000 F8F BEARCAT2 1/2 186Span$3000 ggen 32 Span $1000 FOKKER DR-i27 163Tripe$2700 iS 36 Span $1000 ___________________________________________Catalog Plans Accessories Supplies n Canopy $1500 Credited First Order $25 More________________________________ Order From_________________________ Nick Ziroli29 Edgar Dr Smithtown NY 11787 USA516-234-5038
Edition: Model Aviation - 1989/09
Page Numbers: 46, 47, 153, 154, 158
LAST ISSUE opened some meet announce ments including Second Annual Elec trifest hosted Sb Fliers Morro Bay CA area time very little info pass along now have some details meet serious contest compared fun-fly format includes 7-cell Sail plane 7-cell Old-Timer Unlimited Sailplane Un limited Old-Timer Pylon Pattern Sport Scale events first four events above will flown four rounds beginning 900 am Saturday Based literature received will significant prizes won pos sibility dinner/social Saturday Pre registration $10 till August 1 $15 thereafter Please contact CD Cal Drake Box 1557 Morro Bay CA 93442 info Tell im Bob sent ya sure makes sound like weekend well covered end country great meets since 10th Annual KRC Electric Fly same weekend Pennsylvania Good luck happy landings everyone attending both ac tivities Gulf States Electric Fly-In scheduled Saturday September 30 Sunday October 1 sponsored Tammany Aero Club event anything Electric features Scale event AMA rules demonstration flights work shops swap shops concession stand awards prizes several fun categories free Cajun cookout contestants families flying site Tammany Aero Club Field Goodbee LA information contact Boyd OBrien PO Box 7153 Metairie LA 70010 telephone 1-504/835-5212 can also contact Ben Mathews 101 Mulberry Dr Metai- terializes what details areso keep ne LA 70005 telephone 1-504/833-5589 readin column Tentative plans underway two-day Elec tric meet Cape Cod Dates will October 2829 Sounds like good time orange-and-black planes early word Charlie Sylvia CS Flight Systems Ill let know maThe ElectroStreak Great Planes men tioned May June columns year May column brought response Tom Stryker designer model Tom wrote say some kind things about 46 Model Aviation Radio Control Electrics Bob Kopski 25 West End Dr Lansdale PA 19446 LLoyd Roberts Camden ME 8-ft-span 113/2-lb Turbo Beaver flies Astro 60 28 cells Hobby Lobbys Chip variant UHU Glider ailerons choice two wing sizes Graupners neat packaging power system Electro UHU L contains Speed 600 motor folding scimitar prop spinner assorted tools Tom Stryker designer ElectroStreak likes additional access hatches plane R bottom forward hatch between F2 F3 allow access motor speed control rear hatch aft F4 allows access servos Kurt Klingebiel Silver Spring MD now 12 years old has flying RC since 7 ElectroStreak has flown vari ety 7-cell battery packs com ments months column column comment hatch installation ElectroStreak pictured May photos month shows Im hatch preferences Tom himself has two own kit-built Streaks hatches shown located bottom model made /16 ply stock model set up landing gear also Tom doesnt use time Anyway Tom feels bottom hatches preferred its easier fully streamline top deck behind mo tor thats built solid case what can say ElectroStreak better off hatchesaccording both Tom Bob Tom went discuss possibility large Southeastern Electric meet next year Flor ida possible location would RC World has extensive facilities effect Tom ex plained intent make meet country Right now very early plan ning stages details firm up Ill pass along everything know column Best wishes Tom et al planning Another ElectroStreak photo month has some interesting info go along built Keith Klingebiel Silver Spring MD Keith built rudder save some weighs Beyond experimenting different seven-cell packs include 1200 mAh SCRs SR 1800 same weight flies full bore five minutes SR 1250 gives about three minutes full out about same time given SCRs first two packs all-up weight about 36 oz drops about 31 oz Continued page 153 Os ORDERS SHIPPED AY RECEIVED WARBIRD VIDE ANY TWO OUR 23RD YEAR VIDEOS ONLY $7595 ONLY $10795 SPE6IAL IIROD1JTORY DFFER ALL 6 VIDEOS ONLY $19995 WARBIRD CHECKOUT VOL Flying P-40 Warhawk Corsair Hellcat SB2-A Buccanneer Avenger NF 1325 Programs2 Hr Only $3995 WARBIRD CHECKOUT VOL II Flying P-38 B-25 Mitchell Bomber P-61 Black Widow Invader NF 1454 Programsi 00 Mm Only $3995 WARBIRD CHECKOUT VOL III Flying P-Si Mustang A-20 Bomber P-39 Introduction P-39 Advanced NF 1514 ProgramsliD Mm Only $3995 CALL TOLL FREE IT CARDS Li Money Order Check Credit Card Master, Shi0ping Paid Continental US-Foreign add $500 NP VIDEO LIBRARY 2554 LINCOLN BLVD #54 B&P Associates Gives Total Plight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need padwgel Cycler-ChargerpadsPlus $5 SEtw cm & Gilled Cell Tvlckler *3496Regular Model.. *4696 ForPlus $3 SEtH1For field kit sinai Plus $3 SEtH Multiple&Ogelectric boat batteriesSpecify 612 24V Heavy Duty Model. 85896 sport WInch lerge boat andPlus $4 SEtH electric power charging batteriesSpecify 6 12V CaRa ProductsSASE h*rmaiion PO Box 221 606-067-6924Dealer ijries itwitadcanton SD 67013 September 1989 47 Graupners motor control switch has circuit ry allowing power RC receiver motor battery pack column WARBIRD CHECKOUT VOL V Flying B-29 Pre-Flight BI7E Flight 8-24 NF 1553 Programs107 Mm Only $3995 WARBIRD CHECKOUT VOL IV Flying P-47 3 parts Flying T-6 3 parts NF 1366 Programslb Mm Only $3995 MODERN JET FIGHTER Flying FIA1 8 Hornet Eagle F-16 Fl 6C Th,nlnhirrk F-1~ NF 1635 Programs60 J Day Night tax 90291 Last Call Module 7SF ATRCS retro-fit program will end Iecember 311989 sure get conversion soon ATRCSTM Advanced Technology Radio Control System Converts Module 7SP advanced computerized control system Stores four aircraft setups Includes seven different servo configurations Individual surface travel limits centering Single switch presets launch speed modes Full trailing edge control Enhanced mixing functions Crow landing capability User selectable cross trim capability Flap stick reversing Elevator camber VTR Automatic selection high ail rudder mixing launch landing modes Fully installed kit year limited warranty Control Systems Laboratories 238 5 Hillview Dr Milpitas CA 95035 408 946-4142 Airtrom~ Module 75P1 regiziered trademarks AixIronies Inc ancc Mr Ken Bates true expert field flying wings Contrary what might think plane difficult fly very sta ble makes very smooth controlled turns should able flown anyone has used ailerons before wing loading 6 8 oz per sq ft Javelin flies about same speed typ ical designs ballasted 10 12 oz per sq ft increase performance attributed low-profile drag racing cup tea bal last Javelin 10-oz-per-sq-ft loading ready leave competition starting gate Construction Javelin very simple Itll probably fastest-built plane youve attempted quite some time After once finish building wing done Additional specifics Javelin fol lows wingspan 56 wing area 560 sq weight 24-36 oz wing loading 6 10 oz per sq ft airfoil Eppler 168 construction foam core balsa sheeting Since Ive flying Javelin quite now can attest its truly remarkable design Its loads fun variety ot condi tions best costs $39 including shipping Contact Bob 521 96th Lane NE Blame MN 55434 tel 1-612/780-2737 Klingberg Wing Similar Javelin Klingberg Wing offers modeler true flying wing ie no vertical surfaces delivers outstanding performance What distinguishes Klingberg Wing Javelin method obtaining stability Javelin employs re flexed elevon technique Klingberg Wing uses wing twisting Simplifying task achieving proper wing twist unique build ing jig thats included kit built Wing spans 78 has 659 sq wing area weighs about 20 oz Now Klingberg Wirg enjoying con siderable success Rollin Klingberg pursuing couple new designs Slope fliers will find quite interesting Im sure anyone fol lows aviation casually aware recent roll-out B-2 Stealth Bomber fliers upon first seeing impressive bomber must have envisioned possibility making slope Well Rollin did just thirk about years IMS ow Pasadena unveiled fabulous rendition B-2 pro totype %5-scale made fiberglass foam weighed about four pounds Though theres possibility kit version available will designed power flight ducted fan Im hoping Rollin will stick Glider Rollins other new ship small X-wing ca nard will called X-cel Both upper lower wings have 36-in span total weight should about 20 oz Construction will balsa ply price should stand about $40 can expect see X-cel avail able sometime late year information contact Rollin Future Flight 1256 Prescott Ave Sunnyvale CA 94089 tel 1-408/735-8260 Falcon Two southern Californias betterknown Slope Sailplane designers Carl Mass Mike Reed Carls Viper Mikes Slopar have pictured previous columns Now duo has collaborated very interest ing flying wing though Carl Mike com mitted severe breach etiquette adding vertical fin planes performance makes up possible sin Capable consecutive side outside maneuvers thanks symmet rical airfoil developed its designers Fal con offers Slope flier much aerobatic per formance could hoped Falcon features wingspan 49 length 23 442 sq wing area all-up weight 22-32 oz depending type radio used $20 get foam wing cores plans instructions template sheet Get touch Mike 1775 Dumitru Way #B Corona CA 91720 time being thats about have say subject flying wings canards Com ing future columns Jerry Bridgemans incred ible Slope Racer Snipe Chris Fouquets amazing taileron-equipped aerobatic ship look Slope Soaring Nats time read Nats will have heldand first time ever Slope Soaring will part look new Scimitar RS Slope Racer RC Electrics/Kopski Continued page 47 t250s Keith says latter pack lighter weight allows Streak zip along SR batterys performance impressive Giant Electrics opening topic June column prompted reader Lloyd Roberts Camden ME send photo very im pressive 8-ft-span Turbo Beaver 11 -lb model motivated Astro 60 28 cells Lloyd says first flights very promis ing position Giant Scale Electric neat Continued page 1S4 September 1989 153 GLIDER RETRACTS Precision units made USA air craft quality materials Two 1 /4 scale size units choose Std up 10 lbs HO over 10 lbs $5000 ea $350 S&H CA res add 7010 tax Send Sase information glass 1/4 scale OG 202 fuselage 1/3 & 1 /5 scale retracts available soon Scale Glider Components 7034 FERN PLACE CARLSBAD CA 92009 16193 931-1438 PiE7/Made America American Technolegy R/C & U/C ENGINES 15 thru 61 Glow Plugs & Spark Plugs Ignition Engines 29 35 ORIGINAL REPLACEMENT PARTS Kraft 61 Cox Conquest 15 Testor/McCoy Series 21 Taipan 40 HGK Forster Remco Viking twin DC 09 diesel call arte free informatIon RJL Industries PO Box 5 - Sierra Ma&e CA 91024 818 359-0016 Catalog 14 BIGGER ever over 200 things have never seen before NEW Giant Telemaster NEW High-performance Electric Motors NEW Props accessories NEW Electric Airplanes worlds FASTEST electric plane NEW FAST boats NEW Steam boat NEW ORACOVER covering material NEW Helicopter NEW sailpianes NEW accessories Name Street Address City Hes requested info September KRC meet msybe well rewsrded big Beavers appearance very impressive catalog update has just come Out Its Hobby Lobbys Catalog #14 what makes very impressive many pages things Electric including least 11 new items include motors gear boxes folding props kits cover catalog Electrically impressive shows Graupners Werner Detweiler launching Race Rat Hobby Lobby has kit modified version model won 1988 Pylon event World Champs St Louis performance model awesomely described two ways will climb almost verti cally out sight five seconds 2 took contest-winning wet-powered Quickie 500 finished dead heat Hummm So much wet power Now could talk folks HL bringing KRC meet her neat-sounding plane new too Chip described ass version Electro UHU Glider ailerons optional wingspans capable aerobatics UHU super flierI knowso Chip sounds very ap pealing Anyway according David Martin HL can get $2-value Catalog #14 free call ing writing Hobby Lobby 5614 Franklin Pike Circle Brentwood TN 37027 telephone 1615/373-1444 Tell em Bob sent ya July column tabulated some detailed quan titative performance information sizeable sampling 05-size UGHHHHH motors want pass along some qualitative info about Ive flying Great Planes Gold Fire mo tor Skyvolts couple months very impressive Im using seven 1200mAh SCRs either 7 x 6 8 x 4 nylon prop good results addition own experi ence Im getting similar input readers Im seeing same thoughts appear some Elec tric newsletters basically fast-turning motor such best used faster-moving planes motor has opportunity unload ade quately Personally would choose use direct drive slower-moving model such Gliders OTs have accumu lated enough experience see long mo tor lastsan item interest since motor basically throwaway brushes replaceable far its working just great Part just great taking account its $2495 list $1995 Tower Another motor bringing favorable comments Hobby Lobby Speed 600 72 volt motor used previously men tioned Electro UHU sounds very appealing $1380 have opportunity try item yet Astros Mini-Challenger should readily avail able really time read Bob Boucher chief charge Heh Heb Astro called few days ago passed along info Mini-Challenger has mill well over year reason another has met delay after another Anyway Bob tells its really finally com ing out Mini-Challenger designed around co balt 035 version Astro will supply kit combo motor plus variation Scimitar folding prop used UHU kit per sonally can attest superb flight characteris tics Challenger know folks would really like good-flying model smaller two-meter version MiniChallenger should work Out well Also since 035 five- six-cell motor charging 12volt sources snap Astro has some other good things mill also includes new charging equipment peak-detecting shutoff circuits built dont have date yet Anyway Bob tells over years Astro has sold over million chargers charging nothing new Astro product line upgrade expansion going time BEC products increasing number pop ularity may have missed mean ing Battery Eliminator Circuits idea use motor battery power re ceiver system well items showing up market reader interest increasing evidenced incom ing mail general BEC circuitry works regulating higher motor battery voltage down 48 volts nominal receiver servos oper ate off thereby eliminating separate receiver battery few ounces too electronics monitors voltage level motor battery pack cuts off power motor before pack gets low place con tinued operation receiver risk other words can continue flying full radio control no motor power Representative BEC products include motor controller used Electro UHU new Futaba MCR 4A receiver built-in speed control 6- 7-cell motors have recent personal experience BEC idea Long ago did good say least So Ive avoided concept using separate receiver battery time past difficulties motor noise getting receiver problems motor battery getting low lost radio also have assume newer products have somehow beaten prob lem piped-in motor brush noise re ceiver Im going revisit BEC idea future think may bit behind times topical area April column pictured latest greatestand ugly possibleElectric interconnects Wormies presenta tion laid claim total title forever ugly mating devices things Electric Now wouldnt ya just know Mitch Poling author Model Builders Electric column longest-running know inventor old Slug Plug omnimate wrote warn has new competitive design underway Tapeworm So far hes designed name device Anyway Im worried truly know heart Wormies unbeatable unbearable Anyway what Mitch really wrote about two things has investiga tion effects motor-brush angle re ferred matter very briefly July col umn expressed intent in-depth pursuit topic later column Mitch has pub lished findings July MB strongly encourage serious readers read material next item Mitch passed along dis appointing news next year family moving Germany three years Wife San dra will serve Air Force doctor during time Mitch kids Victoria Andrew Continued page 1S8 154 Model Aviation ma StateZip HoBg HT MASTER 3-D Helicopter Flight Simulator Protects Investment Speeds up flight training time Easy Use Mini- Tune Pipes 1 5%-20% Power SuperQuiet Easy Install Light Weight Stock #3000 Shutlie Stock #3001 Concept 30 Stock #3002 Baron 28 30 & X-CelI 30 Accepts helicopter sizesSuper Tune master ALL helicopter flight manuevers simulated under full flight conditions Pipe have complete control movement forward reverse left rightup down Design tor 3600 rotation hover Flight Master essential mastering difficultSuper Power or-20% up Superuuiei nose-in maneuver Perfect flying skills expensive crash repairs andSuper Quality Material Super Light Weight downtime Protect investment models motors machinerySuper Easy Inatallation List $19995 Stock #3010 Headers Available Stock #1001 Floats Water Snow Escellent Training Aid tor Beginners 20-30 Size Stock #2009 50-60 Size Stock #2010 HOBBY DEALERS TAKE ADVANTAGE QF QUR QUALITt PRODUCTS AT DEALER PRICE PLEASE CALL DR WRITE FQR DETAILS List $59 759 E BROKAW RD SAN JOSE CA 95112 List S2914081 436-1325 CENTURY IMPORT & EXPORT RC Electrics/Kopski Continued page 154 tagging along Sorry see leave soil folks Anyway good news hia MB Electric column will continue will take some European flavor cause will liv ing Weisbaden Mitch describes ing near heart Electroflying Europe feel deeply indebted Mitch since early Electric writings about 18 years ago key factor getting seriously interested Electric first successful Electric flight February/March time frame 1972quite some time past Mitchs Anyway interest pursuit eventually lead association MA About Electrics series 1983/84 column some feature articles along way Indeed very issue marks beginning sixth writing year Thank Mitch wish well note Ill close another column Please forward comment question SASE please author name address ap pear column heading Late news Winston-Salem Radio Control Club Inc North Carolina has announced its third annual Electric fly-in scheduled August 19-20 1989 meet events include AllUp/Last-Down cash prizes plus prizes Most Aerobatic Beauty Contact CD Charles Spear 288 Holly Lane Mocksville NC 27028 late news CS Flight Systems see ad has new Sanyo 1800 SCRs stock $650 sound like winners weigh 60 grams 1200s weigh 51 grams have height 49mm l200s 51mm lot juice can little bitty bit bigger Tell em Bob sent ya Quiet Sate Happy Electric Landings Everyone RC Pylon Racing/Hager Continued page 49 enough divide up wisely assign groups frequencies solely specific competi tion categories Nats can de signed no 31M 20P combina tions within group itself Thats good news 2 bad news will have ex elusive use of 50 channels 20 kHz spacing will have exclusive use 7273 MHz band PRS stands Private Ra dio Service will have intervening frequen cies available assignment 10 kHz spacing channels use paging systems whatever can operate up 300 watts output will potential adjacentchannel interference vengeance al ready us metropolitan areas Los Angeles basin example December 1987 Jim Riccio San Ga briel Valley R/C League using ICOM 7000 spectrum analyzer located five such paging sys tems within 10 kHz present channels year later December 1988 number proliferated 25 conceivable could have strong pagers interspersed between virtually channels near future lot airplanes have inexplicably bitten dust LA last year Thats get ting rid obsolete equipment hard way solution Yes requires using narrowband receivers will reject adjacentchannel signal 85 kHz away either side frequency such equipment already available am happy say both Airtron ics Futaba JR radios have just added AMA s listing 1991-cerrtfied equipment Ed 3 new phenomenon will appear called second-order product interference 20P Watizzit say Briefly two chan nels 23 channel numbers apart such RCl2 RC43 example operated si multaneously produce beat 460 kHz 20 kHz x 23 kHz hits almost directly top 455 kHz IF frequency used single-conversion re ceivers deadly results receivers George Steiner dubs 460 Splat about 23 Skidoo Almost single-conversion receivers vulnerable since IF employed 455 kHz solution problem Yes Dual-conversion receivers use firststage IF frequency 107 MHz effec tively screens out 460 kHz beat reaching second IF stage still 455 kHz before other words insist running single-conversion receiver after January 1 1991 keep eye out anyone 23 channels away frequency unless enjoy re building airplanes 1 cant vouch accuracy follow ing story illustrates what 20P can Denver recently group flying near 158 Model Aviation PRACTICAL SIZED GIANT SCALE MODEL PLANS Fiberglass Cowlings Canopies Available F-i5 4 Span 77 DC-31 1/2 1140Span$4200 F4tJ CORSAIR2 1/4 193SpanS3000 A6M5 ZERO2 1/2 191Span$3000 Plans RK-20 CURTIS P402 1/2 194Span$3000 RK-740 Ducted Fans AT-6 TEXAN24 1101Span$3000 antom 35 Span $1000 F8F BEARCAT2 1/2 186Span$3000 ggen 32 Span $1000 FOKKER DR-i27 163Tripe$2700 iS 36 Span $1000 ___________________________________________Catalog Plans Accessories Supplies n Canopy $1500 Credited First Order $25 More________________________________ Order From_________________________ Nick Ziroli29 Edgar Dr Smithtown NY 11787 USA516-234-5038
Edition: Model Aviation - 1989/09
Page Numbers: 46, 47, 153, 154, 158
LAST ISSUE opened some meet announce ments including Second Annual Elec trifest hosted Sb Fliers Morro Bay CA area time very little info pass along now have some details meet serious contest compared fun-fly format includes 7-cell Sail plane 7-cell Old-Timer Unlimited Sailplane Un limited Old-Timer Pylon Pattern Sport Scale events first four events above will flown four rounds beginning 900 am Saturday Based literature received will significant prizes won pos sibility dinner/social Saturday Pre registration $10 till August 1 $15 thereafter Please contact CD Cal Drake Box 1557 Morro Bay CA 93442 info Tell im Bob sent ya sure makes sound like weekend well covered end country great meets since 10th Annual KRC Electric Fly same weekend Pennsylvania Good luck happy landings everyone attending both ac tivities Gulf States Electric Fly-In scheduled Saturday September 30 Sunday October 1 sponsored Tammany Aero Club event anything Electric features Scale event AMA rules demonstration flights work shops swap shops concession stand awards prizes several fun categories free Cajun cookout contestants families flying site Tammany Aero Club Field Goodbee LA information contact Boyd OBrien PO Box 7153 Metairie LA 70010 telephone 1-504/835-5212 can also contact Ben Mathews 101 Mulberry Dr Metai- terializes what details areso keep ne LA 70005 telephone 1-504/833-5589 readin column Tentative plans underway two-day Elec tric meet Cape Cod Dates will October 2829 Sounds like good time orange-and-black planes early word Charlie Sylvia CS Flight Systems Ill let know maThe ElectroStreak Great Planes men tioned May June columns year May column brought response Tom Stryker designer model Tom wrote say some kind things about 46 Model Aviation Radio Control Electrics Bob Kopski 25 West End Dr Lansdale PA 19446 LLoyd Roberts Camden ME 8-ft-span 113/2-lb Turbo Beaver flies Astro 60 28 cells Hobby Lobbys Chip variant UHU Glider ailerons choice two wing sizes Graupners neat packaging power system Electro UHU L contains Speed 600 motor folding scimitar prop spinner assorted tools Tom Stryker designer ElectroStreak likes additional access hatches plane R bottom forward hatch between F2 F3 allow access motor speed control rear hatch aft F4 allows access servos Kurt Klingebiel Silver Spring MD now 12 years old has flying RC since 7 ElectroStreak has flown vari ety 7-cell battery packs com ments months column column comment hatch installation ElectroStreak pictured May photos month shows Im hatch preferences Tom himself has two own kit-built Streaks hatches shown located bottom model made /16 ply stock model set up landing gear also Tom doesnt use time Anyway Tom feels bottom hatches preferred its easier fully streamline top deck behind mo tor thats built solid case what can say ElectroStreak better off hatchesaccording both Tom Bob Tom went discuss possibility large Southeastern Electric meet next year Flor ida possible location would RC World has extensive facilities effect Tom ex plained intent make meet country Right now very early plan ning stages details firm up Ill pass along everything know column Best wishes Tom et al planning Another ElectroStreak photo month has some interesting info go along built Keith Klingebiel Silver Spring MD Keith built rudder save some weighs Beyond experimenting different seven-cell packs include 1200 mAh SCRs SR 1800 same weight flies full bore five minutes SR 1250 gives about three minutes full out about same time given SCRs first two packs all-up weight about 36 oz drops about 31 oz Continued page 153 Os ORDERS SHIPPED AY RECEIVED WARBIRD VIDE ANY TWO OUR 23RD YEAR VIDEOS ONLY $7595 ONLY $10795 SPE6IAL IIROD1JTORY DFFER ALL 6 VIDEOS ONLY $19995 WARBIRD CHECKOUT VOL Flying P-40 Warhawk Corsair Hellcat SB2-A Buccanneer Avenger NF 1325 Programs2 Hr Only $3995 WARBIRD CHECKOUT VOL II Flying P-38 B-25 Mitchell Bomber P-61 Black Widow Invader NF 1454 Programsi 00 Mm Only $3995 WARBIRD CHECKOUT VOL III Flying P-Si Mustang A-20 Bomber P-39 Introduction P-39 Advanced NF 1514 ProgramsliD Mm Only $3995 CALL TOLL FREE IT CARDS Li Money Order Check Credit Card Master, Shi0ping Paid Continental US-Foreign add $500 NP VIDEO LIBRARY 2554 LINCOLN BLVD #54 B&P Associates Gives Total Plight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need padwgel Cycler-ChargerpadsPlus $5 SEtw cm & Gilled Cell Tvlckler *3496Regular Model.. *4696 ForPlus $3 SEtH1For field kit sinai Plus $3 SEtH Multiple&Ogelectric boat batteriesSpecify 612 24V Heavy Duty Model. 85896 sport WInch lerge boat andPlus $4 SEtH electric power charging batteriesSpecify 6 12V CaRa ProductsSASE h*rmaiion PO Box 221 606-067-6924Dealer ijries itwitadcanton SD 67013 September 1989 47 Graupners motor control switch has circuit ry allowing power RC receiver motor battery pack column WARBIRD CHECKOUT VOL V Flying B-29 Pre-Flight BI7E Flight 8-24 NF 1553 Programs107 Mm Only $3995 WARBIRD CHECKOUT VOL IV Flying P-47 3 parts Flying T-6 3 parts NF 1366 Programslb Mm Only $3995 MODERN JET FIGHTER Flying FIA1 8 Hornet Eagle F-16 Fl 6C Th,nlnhirrk F-1~ NF 1635 Programs60 J Day Night tax 90291 Last Call Module 7SF ATRCS retro-fit program will end Iecember 311989 sure get conversion soon ATRCSTM Advanced Technology Radio Control System Converts Module 7SP advanced computerized control system Stores four aircraft setups Includes seven different servo configurations Individual surface travel limits centering Single switch presets launch speed modes Full trailing edge control Enhanced mixing functions Crow landing capability User selectable cross trim capability Flap stick reversing Elevator camber VTR Automatic selection high ail rudder mixing launch landing modes Fully installed kit year limited warranty Control Systems Laboratories 238 5 Hillview Dr Milpitas CA 95035 408 946-4142 Airtrom~ Module 75P1 regiziered trademarks AixIronies Inc ancc Mr Ken Bates true expert field flying wings Contrary what might think plane difficult fly very sta ble makes very smooth controlled turns should able flown anyone has used ailerons before wing loading 6 8 oz per sq ft Javelin flies about same speed typ ical designs ballasted 10 12 oz per sq ft increase performance attributed low-profile drag racing cup tea bal last Javelin 10-oz-per-sq-ft loading ready leave competition starting gate Construction Javelin very simple Itll probably fastest-built plane youve attempted quite some time After once finish building wing done Additional specifics Javelin fol lows wingspan 56 wing area 560 sq weight 24-36 oz wing loading 6 10 oz per sq ft airfoil Eppler 168 construction foam core balsa sheeting Since Ive flying Javelin quite now can attest its truly remarkable design Its loads fun variety ot condi tions best costs $39 including shipping Contact Bob 521 96th Lane NE Blame MN 55434 tel 1-612/780-2737 Klingberg Wing Similar Javelin Klingberg Wing offers modeler true flying wing ie no vertical surfaces delivers outstanding performance What distinguishes Klingberg Wing Javelin method obtaining stability Javelin employs re flexed elevon technique Klingberg Wing uses wing twisting Simplifying task achieving proper wing twist unique build ing jig thats included kit built Wing spans 78 has 659 sq wing area weighs about 20 oz Now Klingberg Wirg enjoying con siderable success Rollin Klingberg pursuing couple new designs Slope fliers will find quite interesting Im sure anyone fol lows aviation casually aware recent roll-out B-2 Stealth Bomber fliers upon first seeing impressive bomber must have envisioned possibility making slope Well Rollin did just thirk about years IMS ow Pasadena unveiled fabulous rendition B-2 pro totype %5-scale made fiberglass foam weighed about four pounds Though theres possibility kit version available will designed power flight ducted fan Im hoping Rollin will stick Glider Rollins other new ship small X-wing ca nard will called X-cel Both upper lower wings have 36-in span total weight should about 20 oz Construction will balsa ply price should stand about $40 can expect see X-cel avail able sometime late year information contact Rollin Future Flight 1256 Prescott Ave Sunnyvale CA 94089 tel 1-408/735-8260 Falcon Two southern Californias betterknown Slope Sailplane designers Carl Mass Mike Reed Carls Viper Mikes Slopar have pictured previous columns Now duo has collaborated very interest ing flying wing though Carl Mike com mitted severe breach etiquette adding vertical fin planes performance makes up possible sin Capable consecutive side outside maneuvers thanks symmet rical airfoil developed its designers Fal con offers Slope flier much aerobatic per formance could hoped Falcon features wingspan 49 length 23 442 sq wing area all-up weight 22-32 oz depending type radio used $20 get foam wing cores plans instructions template sheet Get touch Mike 1775 Dumitru Way #B Corona CA 91720 time being thats about have say subject flying wings canards Com ing future columns Jerry Bridgemans incred ible Slope Racer Snipe Chris Fouquets amazing taileron-equipped aerobatic ship look Slope Soaring Nats time read Nats will have heldand first time ever Slope Soaring will part look new Scimitar RS Slope Racer RC Electrics/Kopski Continued page 47 t250s Keith says latter pack lighter weight allows Streak zip along SR batterys performance impressive Giant Electrics opening topic June column prompted reader Lloyd Roberts Camden ME send photo very im pressive 8-ft-span Turbo Beaver 11 -lb model motivated Astro 60 28 cells Lloyd says first flights very promis ing position Giant Scale Electric neat Continued page 1S4 September 1989 153 GLIDER RETRACTS Precision units made USA air craft quality materials Two 1 /4 scale size units choose Std up 10 lbs HO over 10 lbs $5000 ea $350 S&H CA res add 7010 tax Send Sase information glass 1/4 scale OG 202 fuselage 1/3 & 1 /5 scale retracts available soon Scale Glider Components 7034 FERN PLACE CARLSBAD CA 92009 16193 931-1438 PiE7/Made America American Technolegy R/C & U/C ENGINES 15 thru 61 Glow Plugs & Spark Plugs Ignition Engines 29 35 ORIGINAL REPLACEMENT PARTS Kraft 61 Cox Conquest 15 Testor/McCoy Series 21 Taipan 40 HGK Forster Remco Viking twin DC 09 diesel call arte free informatIon RJL Industries PO Box 5 - Sierra Ma&e CA 91024 818 359-0016 Catalog 14 BIGGER ever over 200 things have never seen before NEW Giant Telemaster NEW High-performance Electric Motors NEW Props accessories NEW Electric Airplanes worlds FASTEST electric plane NEW FAST boats NEW Steam boat NEW ORACOVER covering material NEW Helicopter NEW sailpianes NEW accessories Name Street Address City Hes requested info September KRC meet msybe well rewsrded big Beavers appearance very impressive catalog update has just come Out Its Hobby Lobbys Catalog #14 what makes very impressive many pages things Electric including least 11 new items include motors gear boxes folding props kits cover catalog Electrically impressive shows Graupners Werner Detweiler launching Race Rat Hobby Lobby has kit modified version model won 1988 Pylon event World Champs St Louis performance model awesomely described two ways will climb almost verti cally out sight five seconds 2 took contest-winning wet-powered Quickie 500 finished dead heat Hummm So much wet power Now could talk folks HL bringing KRC meet her neat-sounding plane new too Chip described ass version Electro UHU Glider ailerons optional wingspans capable aerobatics UHU super flierI knowso Chip sounds very ap pealing Anyway according David Martin HL can get $2-value Catalog #14 free call ing writing Hobby Lobby 5614 Franklin Pike Circle Brentwood TN 37027 telephone 1615/373-1444 Tell em Bob sent ya July column tabulated some detailed quan titative performance information sizeable sampling 05-size UGHHHHH motors want pass along some qualitative info about Ive flying Great Planes Gold Fire mo tor Skyvolts couple months very impressive Im using seven 1200mAh SCRs either 7 x 6 8 x 4 nylon prop good results addition own experi ence Im getting similar input readers Im seeing same thoughts appear some Elec tric newsletters basically fast-turning motor such best used faster-moving planes motor has opportunity unload ade quately Personally would choose use direct drive slower-moving model such Gliders OTs have accumu lated enough experience see long mo tor lastsan item interest since motor basically throwaway brushes replaceable far its working just great Part just great taking account its $2495 list $1995 Tower Another motor bringing favorable comments Hobby Lobby Speed 600 72 volt motor used previously men tioned Electro UHU sounds very appealing $1380 have opportunity try item yet Astros Mini-Challenger should readily avail able really time read Bob Boucher chief charge Heh Heb Astro called few days ago passed along info Mini-Challenger has mill well over year reason another has met delay after another Anyway Bob tells its really finally com ing out Mini-Challenger designed around co balt 035 version Astro will supply kit combo motor plus variation Scimitar folding prop used UHU kit per sonally can attest superb flight characteris tics Challenger know folks would really like good-flying model smaller two-meter version MiniChallenger should work Out well Also since 035 five- six-cell motor charging 12volt sources snap Astro has some other good things mill also includes new charging equipment peak-detecting shutoff circuits built dont have date yet Anyway Bob tells over years Astro has sold over million chargers charging nothing new Astro product line upgrade expansion going time BEC products increasing number pop ularity may have missed mean ing Battery Eliminator Circuits idea use motor battery power re ceiver system well items showing up market reader interest increasing evidenced incom ing mail general BEC circuitry works regulating higher motor battery voltage down 48 volts nominal receiver servos oper ate off thereby eliminating separate receiver battery few ounces too electronics monitors voltage level motor battery pack cuts off power motor before pack gets low place con tinued operation receiver risk other words can continue flying full radio control no motor power Representative BEC products include motor controller used Electro UHU new Futaba MCR 4A receiver built-in speed control 6- 7-cell motors have recent personal experience BEC idea Long ago did good say least So Ive avoided concept using separate receiver battery time past difficulties motor noise getting receiver problems motor battery getting low lost radio also have assume newer products have somehow beaten prob lem piped-in motor brush noise re ceiver Im going revisit BEC idea future think may bit behind times topical area April column pictured latest greatestand ugly possibleElectric interconnects Wormies presenta tion laid claim total title forever ugly mating devices things Electric Now wouldnt ya just know Mitch Poling author Model Builders Electric column longest-running know inventor old Slug Plug omnimate wrote warn has new competitive design underway Tapeworm So far hes designed name device Anyway Im worried truly know heart Wormies unbeatable unbearable Anyway what Mitch really wrote about two things has investiga tion effects motor-brush angle re ferred matter very briefly July col umn expressed intent in-depth pursuit topic later column Mitch has pub lished findings July MB strongly encourage serious readers read material next item Mitch passed along dis appointing news next year family moving Germany three years Wife San dra will serve Air Force doctor during time Mitch kids Victoria Andrew Continued page 1S8 154 Model Aviation ma StateZip HoBg HT MASTER 3-D Helicopter Flight Simulator Protects Investment Speeds up flight training time Easy Use Mini- Tune Pipes 1 5%-20% Power SuperQuiet Easy Install Light Weight Stock #3000 Shutlie Stock #3001 Concept 30 Stock #3002 Baron 28 30 & X-CelI 30 Accepts helicopter sizesSuper Tune master ALL helicopter flight manuevers simulated under full flight conditions Pipe have complete control movement forward reverse left rightup down Design tor 3600 rotation hover Flight Master essential mastering difficultSuper Power or-20% up Superuuiei nose-in maneuver Perfect flying skills expensive crash repairs andSuper Quality Material Super Light Weight downtime Protect investment models motors machinerySuper Easy Inatallation List $19995 Stock #3010 Headers Available Stock #1001 Floats Water Snow Escellent Training Aid tor Beginners 20-30 Size Stock #2009 50-60 Size Stock #2010 HOBBY DEALERS TAKE ADVANTAGE QF QUR QUALITt PRODUCTS AT DEALER PRICE PLEASE CALL DR WRITE FQR DETAILS List $59 759 E BROKAW RD SAN JOSE CA 95112 List S2914081 436-1325 CENTURY IMPORT & EXPORT RC Electrics/Kopski Continued page 154 tagging along Sorry see leave soil folks Anyway good news hia MB Electric column will continue will take some European flavor cause will liv ing Weisbaden Mitch describes ing near heart Electroflying Europe feel deeply indebted Mitch since early Electric writings about 18 years ago key factor getting seriously interested Electric first successful Electric flight February/March time frame 1972quite some time past Mitchs Anyway interest pursuit eventually lead association MA About Electrics series 1983/84 column some feature articles along way Indeed very issue marks beginning sixth writing year Thank Mitch wish well note Ill close another column Please forward comment question SASE please author name address ap pear column heading Late news Winston-Salem Radio Control Club Inc North Carolina has announced its third annual Electric fly-in scheduled August 19-20 1989 meet events include AllUp/Last-Down cash prizes plus prizes Most Aerobatic Beauty Contact CD Charles Spear 288 Holly Lane Mocksville NC 27028 late news CS Flight Systems see ad has new Sanyo 1800 SCRs stock $650 sound like winners weigh 60 grams 1200s weigh 51 grams have height 49mm l200s 51mm lot juice can little bitty bit bigger Tell em Bob sent ya Quiet Sate Happy Electric Landings Everyone RC Pylon Racing/Hager Continued page 49 enough divide up wisely assign groups frequencies solely specific competi tion categories Nats can de signed no 31M 20P combina tions within group itself Thats good news 2 bad news will have ex elusive use of 50 channels 20 kHz spacing will have exclusive use 7273 MHz band PRS stands Private Ra dio Service will have intervening frequen cies available assignment 10 kHz spacing channels use paging systems whatever can operate up 300 watts output will potential adjacentchannel interference vengeance al ready us metropolitan areas Los Angeles basin example December 1987 Jim Riccio San Ga briel Valley R/C League using ICOM 7000 spectrum analyzer located five such paging sys tems within 10 kHz present channels year later December 1988 number proliferated 25 conceivable could have strong pagers interspersed between virtually channels near future lot airplanes have inexplicably bitten dust LA last year Thats get ting rid obsolete equipment hard way solution Yes requires using narrowband receivers will reject adjacentchannel signal 85 kHz away either side frequency such equipment already available am happy say both Airtron ics Futaba JR radios have just added AMA s listing 1991-cerrtfied equipment Ed 3 new phenomenon will appear called second-order product interference 20P Watizzit say Briefly two chan nels 23 channel numbers apart such RCl2 RC43 example operated si multaneously produce beat 460 kHz 20 kHz x 23 kHz hits almost directly top 455 kHz IF frequency used single-conversion re ceivers deadly results receivers George Steiner dubs 460 Splat about 23 Skidoo Almost single-conversion receivers vulnerable since IF employed 455 kHz solution problem Yes Dual-conversion receivers use firststage IF frequency 107 MHz effec tively screens out 460 kHz beat reaching second IF stage still 455 kHz before other words insist running single-conversion receiver after January 1 1991 keep eye out anyone 23 channels away frequency unless enjoy re building airplanes 1 cant vouch accuracy follow ing story illustrates what 20P can Denver recently group flying near 158 Model Aviation PRACTICAL SIZED GIANT SCALE MODEL PLANS Fiberglass Cowlings Canopies Available F-i5 4 Span 77 DC-31 1/2 1140Span$4200 F4tJ CORSAIR2 1/4 193SpanS3000 A6M5 ZERO2 1/2 191Span$3000 Plans RK-20 CURTIS P402 1/2 194Span$3000 RK-740 Ducted Fans AT-6 TEXAN24 1101Span$3000 antom 35 Span $1000 F8F BEARCAT2 1/2 186Span$3000 ggen 32 Span $1000 FOKKER DR-i27 163Tripe$2700 iS 36 Span $1000 ___________________________________________Catalog Plans Accessories Supplies n Canopy $1500 Credited First Order $25 More________________________________ Order From_________________________ Nick Ziroli29 Edgar Dr Smithtown NY 11787 USA516-234-5038
Edition: Model Aviation - 1989/09
Page Numbers: 46, 47, 153, 154, 158
LAST ISSUE opened some meet announce ments including Second Annual Elec trifest hosted Sb Fliers Morro Bay CA area time very little info pass along now have some details meet serious contest compared fun-fly format includes 7-cell Sail plane 7-cell Old-Timer Unlimited Sailplane Un limited Old-Timer Pylon Pattern Sport Scale events first four events above will flown four rounds beginning 900 am Saturday Based literature received will significant prizes won pos sibility dinner/social Saturday Pre registration $10 till August 1 $15 thereafter Please contact CD Cal Drake Box 1557 Morro Bay CA 93442 info Tell im Bob sent ya sure makes sound like weekend well covered end country great meets since 10th Annual KRC Electric Fly same weekend Pennsylvania Good luck happy landings everyone attending both ac tivities Gulf States Electric Fly-In scheduled Saturday September 30 Sunday October 1 sponsored Tammany Aero Club event anything Electric features Scale event AMA rules demonstration flights work shops swap shops concession stand awards prizes several fun categories free Cajun cookout contestants families flying site Tammany Aero Club Field Goodbee LA information contact Boyd OBrien PO Box 7153 Metairie LA 70010 telephone 1-504/835-5212 can also contact Ben Mathews 101 Mulberry Dr Metai- terializes what details areso keep ne LA 70005 telephone 1-504/833-5589 readin column Tentative plans underway two-day Elec tric meet Cape Cod Dates will October 2829 Sounds like good time orange-and-black planes early word Charlie Sylvia CS Flight Systems Ill let know maThe ElectroStreak Great Planes men tioned May June columns year May column brought response Tom Stryker designer model Tom wrote say some kind things about 46 Model Aviation Radio Control Electrics Bob Kopski 25 West End Dr Lansdale PA 19446 LLoyd Roberts Camden ME 8-ft-span 113/2-lb Turbo Beaver flies Astro 60 28 cells Hobby Lobbys Chip variant UHU Glider ailerons choice two wing sizes Graupners neat packaging power system Electro UHU L contains Speed 600 motor folding scimitar prop spinner assorted tools Tom Stryker designer ElectroStreak likes additional access hatches plane R bottom forward hatch between F2 F3 allow access motor speed control rear hatch aft F4 allows access servos Kurt Klingebiel Silver Spring MD now 12 years old has flying RC since 7 ElectroStreak has flown vari ety 7-cell battery packs com ments months column column comment hatch installation ElectroStreak pictured May photos month shows Im hatch preferences Tom himself has two own kit-built Streaks hatches shown located bottom model made /16 ply stock model set up landing gear also Tom doesnt use time Anyway Tom feels bottom hatches preferred its easier fully streamline top deck behind mo tor thats built solid case what can say ElectroStreak better off hatchesaccording both Tom Bob Tom went discuss possibility large Southeastern Electric meet next year Flor ida possible location would RC World has extensive facilities effect Tom ex plained intent make meet country Right now very early plan ning stages details firm up Ill pass along everything know column Best wishes Tom et al planning Another ElectroStreak photo month has some interesting info go along built Keith Klingebiel Silver Spring MD Keith built rudder save some weighs Beyond experimenting different seven-cell packs include 1200 mAh SCRs SR 1800 same weight flies full bore five minutes SR 1250 gives about three minutes full out about same time given SCRs first two packs all-up weight about 36 oz drops about 31 oz Continued page 153 Os ORDERS SHIPPED AY RECEIVED WARBIRD VIDE ANY TWO OUR 23RD YEAR VIDEOS ONLY $7595 ONLY $10795 SPE6IAL IIROD1JTORY DFFER ALL 6 VIDEOS ONLY $19995 WARBIRD CHECKOUT VOL Flying P-40 Warhawk Corsair Hellcat SB2-A Buccanneer Avenger NF 1325 Programs2 Hr Only $3995 WARBIRD CHECKOUT VOL II Flying P-38 B-25 Mitchell Bomber P-61 Black Widow Invader NF 1454 Programsi 00 Mm Only $3995 WARBIRD CHECKOUT VOL III Flying P-Si Mustang A-20 Bomber P-39 Introduction P-39 Advanced NF 1514 ProgramsliD Mm Only $3995 CALL TOLL FREE IT CARDS Li Money Order Check Credit Card Master, Shi0ping Paid Continental US-Foreign add $500 NP VIDEO LIBRARY 2554 LINCOLN BLVD #54 B&P Associates Gives Total Plight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need padwgel Cycler-ChargerpadsPlus $5 SEtw cm & Gilled Cell Tvlckler *3496Regular Model.. *4696 ForPlus $3 SEtH1For field kit sinai Plus $3 SEtH Multiple&Ogelectric boat batteriesSpecify 612 24V Heavy Duty Model. 85896 sport WInch lerge boat andPlus $4 SEtH electric power charging batteriesSpecify 6 12V CaRa ProductsSASE h*rmaiion PO Box 221 606-067-6924Dealer ijries itwitadcanton SD 67013 September 1989 47 Graupners motor control switch has circuit ry allowing power RC receiver motor battery pack column WARBIRD CHECKOUT VOL V Flying B-29 Pre-Flight BI7E Flight 8-24 NF 1553 Programs107 Mm Only $3995 WARBIRD CHECKOUT VOL IV Flying P-47 3 parts Flying T-6 3 parts NF 1366 Programslb Mm Only $3995 MODERN JET FIGHTER Flying FIA1 8 Hornet Eagle F-16 Fl 6C Th,nlnhirrk F-1~ NF 1635 Programs60 J Day Night tax 90291 Last Call Module 7SF ATRCS retro-fit program will end Iecember 311989 sure get conversion soon ATRCSTM Advanced Technology Radio Control System Converts Module 7SP advanced computerized control system Stores four aircraft setups Includes seven different servo configurations Individual surface travel limits centering Single switch presets launch speed modes Full trailing edge control Enhanced mixing functions Crow landing capability User selectable cross trim capability Flap stick reversing Elevator camber VTR Automatic selection high ail rudder mixing launch landing modes Fully installed kit year limited warranty Control Systems Laboratories 238 5 Hillview Dr Milpitas CA 95035 408 946-4142 Airtrom~ Module 75P1 regiziered trademarks AixIronies Inc ancc Mr Ken Bates true expert field flying wings Contrary what might think plane difficult fly very sta ble makes very smooth controlled turns should able flown anyone has used ailerons before wing loading 6 8 oz per sq ft Javelin flies about same speed typ ical designs ballasted 10 12 oz per sq ft increase performance attributed low-profile drag racing cup tea bal last Javelin 10-oz-per-sq-ft loading ready leave competition starting gate Construction Javelin very simple Itll probably fastest-built plane youve attempted quite some time After once finish building wing done Additional specifics Javelin fol lows wingspan 56 wing area 560 sq weight 24-36 oz wing loading 6 10 oz per sq ft airfoil Eppler 168 construction foam core balsa sheeting Since Ive flying Javelin quite now can attest its truly remarkable design Its loads fun variety ot condi tions best costs $39 including shipping Contact Bob 521 96th Lane NE Blame MN 55434 tel 1-612/780-2737 Klingberg Wing Similar Javelin Klingberg Wing offers modeler true flying wing ie no vertical surfaces delivers outstanding performance What distinguishes Klingberg Wing Javelin method obtaining stability Javelin employs re flexed elevon technique Klingberg Wing uses wing twisting Simplifying task achieving proper wing twist unique build ing jig thats included kit built Wing spans 78 has 659 sq wing area weighs about 20 oz Now Klingberg Wirg enjoying con siderable success Rollin Klingberg pursuing couple new designs Slope fliers will find quite interesting Im sure anyone fol lows aviation casually aware recent roll-out B-2 Stealth Bomber fliers upon first seeing impressive bomber must have envisioned possibility making slope Well Rollin did just thirk about years IMS ow Pasadena unveiled fabulous rendition B-2 pro totype %5-scale made fiberglass foam weighed about four pounds Though theres possibility kit version available will designed power flight ducted fan Im hoping Rollin will stick Glider Rollins other new ship small X-wing ca nard will called X-cel Both upper lower wings have 36-in span total weight should about 20 oz Construction will balsa ply price should stand about $40 can expect see X-cel avail able sometime late year information contact Rollin Future Flight 1256 Prescott Ave Sunnyvale CA 94089 tel 1-408/735-8260 Falcon Two southern Californias betterknown Slope Sailplane designers Carl Mass Mike Reed Carls Viper Mikes Slopar have pictured previous columns Now duo has collaborated very interest ing flying wing though Carl Mike com mitted severe breach etiquette adding vertical fin planes performance makes up possible sin Capable consecutive side outside maneuvers thanks symmet rical airfoil developed its designers Fal con offers Slope flier much aerobatic per formance could hoped Falcon features wingspan 49 length 23 442 sq wing area all-up weight 22-32 oz depending type radio used $20 get foam wing cores plans instructions template sheet Get touch Mike 1775 Dumitru Way #B Corona CA 91720 time being thats about have say subject flying wings canards Com ing future columns Jerry Bridgemans incred ible Slope Racer Snipe Chris Fouquets amazing taileron-equipped aerobatic ship look Slope Soaring Nats time read Nats will have heldand first time ever Slope Soaring will part look new Scimitar RS Slope Racer RC Electrics/Kopski Continued page 47 t250s Keith says latter pack lighter weight allows Streak zip along SR batterys performance impressive Giant Electrics opening topic June column prompted reader Lloyd Roberts Camden ME send photo very im pressive 8-ft-span Turbo Beaver 11 -lb model motivated Astro 60 28 cells Lloyd says first flights very promis ing position Giant Scale Electric neat Continued page 1S4 September 1989 153 GLIDER RETRACTS Precision units made USA air craft quality materials Two 1 /4 scale size units choose Std up 10 lbs HO over 10 lbs $5000 ea $350 S&H CA res add 7010 tax Send Sase information glass 1/4 scale OG 202 fuselage 1/3 & 1 /5 scale retracts available soon Scale Glider Components 7034 FERN PLACE CARLSBAD CA 92009 16193 931-1438 PiE7/Made America American Technolegy R/C & U/C ENGINES 15 thru 61 Glow Plugs & Spark Plugs Ignition Engines 29 35 ORIGINAL REPLACEMENT PARTS Kraft 61 Cox Conquest 15 Testor/McCoy Series 21 Taipan 40 HGK Forster Remco Viking twin DC 09 diesel call arte free informatIon RJL Industries PO Box 5 - Sierra Ma&e CA 91024 818 359-0016 Catalog 14 BIGGER ever over 200 things have never seen before NEW Giant Telemaster NEW High-performance Electric Motors NEW Props accessories NEW Electric Airplanes worlds FASTEST electric plane NEW FAST boats NEW Steam boat NEW ORACOVER covering material NEW Helicopter NEW sailpianes NEW accessories Name Street Address City Hes requested info September KRC meet msybe well rewsrded big Beavers appearance very impressive catalog update has just come Out Its Hobby Lobbys Catalog #14 what makes very impressive many pages things Electric including least 11 new items include motors gear boxes folding props kits cover catalog Electrically impressive shows Graupners Werner Detweiler launching Race Rat Hobby Lobby has kit modified version model won 1988 Pylon event World Champs St Louis performance model awesomely described two ways will climb almost verti cally out sight five seconds 2 took contest-winning wet-powered Quickie 500 finished dead heat Hummm So much wet power Now could talk folks HL bringing KRC meet her neat-sounding plane new too Chip described ass version Electro UHU Glider ailerons optional wingspans capable aerobatics UHU super flierI knowso Chip sounds very ap pealing Anyway according David Martin HL can get $2-value Catalog #14 free call ing writing Hobby Lobby 5614 Franklin Pike Circle Brentwood TN 37027 telephone 1615/373-1444 Tell em Bob sent ya July column tabulated some detailed quan titative performance information sizeable sampling 05-size UGHHHHH motors want pass along some qualitative info about Ive flying Great Planes Gold Fire mo tor Skyvolts couple months very impressive Im using seven 1200mAh SCRs either 7 x 6 8 x 4 nylon prop good results addition own experi ence Im getting similar input readers Im seeing same thoughts appear some Elec tric newsletters basically fast-turning motor such best used faster-moving planes motor has opportunity unload ade quately Personally would choose use direct drive slower-moving model such Gliders OTs have accumu lated enough experience see long mo tor lastsan item interest since motor basically throwaway brushes replaceable far its working just great Part just great taking account its $2495 list $1995 Tower Another motor bringing favorable comments Hobby Lobby Speed 600 72 volt motor used previously men tioned Electro UHU sounds very appealing $1380 have opportunity try item yet Astros Mini-Challenger should readily avail able really time read Bob Boucher chief charge Heh Heb Astro called few days ago passed along info Mini-Challenger has mill well over year reason another has met delay after another Anyway Bob tells its really finally com ing out Mini-Challenger designed around co balt 035 version Astro will supply kit combo motor plus variation Scimitar folding prop used UHU kit per sonally can attest superb flight characteris tics Challenger know folks would really like good-flying model smaller two-meter version MiniChallenger should work Out well Also since 035 five- six-cell motor charging 12volt sources snap Astro has some other good things mill also includes new charging equipment peak-detecting shutoff circuits built dont have date yet Anyway Bob tells over years Astro has sold over million chargers charging nothing new Astro product line upgrade expansion going time BEC products increasing number pop ularity may have missed mean ing Battery Eliminator Circuits idea use motor battery power re ceiver system well items showing up market reader interest increasing evidenced incom ing mail general BEC circuitry works regulating higher motor battery voltage down 48 volts nominal receiver servos oper ate off thereby eliminating separate receiver battery few ounces too electronics monitors voltage level motor battery pack cuts off power motor before pack gets low place con tinued operation receiver risk other words can continue flying full radio control no motor power Representative BEC products include motor controller used Electro UHU new Futaba MCR 4A receiver built-in speed control 6- 7-cell motors have recent personal experience BEC idea Long ago did good say least So Ive avoided concept using separate receiver battery time past difficulties motor noise getting receiver problems motor battery getting low lost radio also have assume newer products have somehow beaten prob lem piped-in motor brush noise re ceiver Im going revisit BEC idea future think may bit behind times topical area April column pictured latest greatestand ugly possibleElectric interconnects Wormies presenta tion laid claim total title forever ugly mating devices things Electric Now wouldnt ya just know Mitch Poling author Model Builders Electric column longest-running know inventor old Slug Plug omnimate wrote warn has new competitive design underway Tapeworm So far hes designed name device Anyway Im worried truly know heart Wormies unbeatable unbearable Anyway what Mitch really wrote about two things has investiga tion effects motor-brush angle re ferred matter very briefly July col umn expressed intent in-depth pursuit topic later column Mitch has pub lished findings July MB strongly encourage serious readers read material next item Mitch passed along dis appointing news next year family moving Germany three years Wife San dra will serve Air Force doctor during time Mitch kids Victoria Andrew Continued page 1S8 154 Model Aviation ma StateZip HoBg HT MASTER 3-D Helicopter Flight Simulator Protects Investment Speeds up flight training time Easy Use Mini- Tune Pipes 1 5%-20% Power SuperQuiet Easy Install Light Weight Stock #3000 Shutlie Stock #3001 Concept 30 Stock #3002 Baron 28 30 & X-CelI 30 Accepts helicopter sizesSuper Tune master ALL helicopter flight manuevers simulated under full flight conditions Pipe have complete control movement forward reverse left rightup down Design tor 3600 rotation hover Flight Master essential mastering difficultSuper Power or-20% up Superuuiei nose-in maneuver Perfect flying skills expensive crash repairs andSuper Quality Material Super Light Weight downtime Protect investment models motors machinerySuper Easy Inatallation List $19995 Stock #3010 Headers Available Stock #1001 Floats Water Snow Escellent Training Aid tor Beginners 20-30 Size Stock #2009 50-60 Size Stock #2010 HOBBY DEALERS TAKE ADVANTAGE QF QUR QUALITt PRODUCTS AT DEALER PRICE PLEASE CALL DR WRITE FQR DETAILS List $59 759 E BROKAW RD SAN JOSE CA 95112 List S2914081 436-1325 CENTURY IMPORT & EXPORT RC Electrics/Kopski Continued page 154 tagging along Sorry see leave soil folks Anyway good news hia MB Electric column will continue will take some European flavor cause will liv ing Weisbaden Mitch describes ing near heart Electroflying Europe feel deeply indebted Mitch since early Electric writings about 18 years ago key factor getting seriously interested Electric first successful Electric flight February/March time frame 1972quite some time past Mitchs Anyway interest pursuit eventually lead association MA About Electrics series 1983/84 column some feature articles along way Indeed very issue marks beginning sixth writing year Thank Mitch wish well note Ill close another column Please forward comment question SASE please author name address ap pear column heading Late news Winston-Salem Radio Control Club Inc North Carolina has announced its third annual Electric fly-in scheduled August 19-20 1989 meet events include AllUp/Last-Down cash prizes plus prizes Most Aerobatic Beauty Contact CD Charles Spear 288 Holly Lane Mocksville NC 27028 late news CS Flight Systems see ad has new Sanyo 1800 SCRs stock $650 sound like winners weigh 60 grams 1200s weigh 51 grams have height 49mm l200s 51mm lot juice can little bitty bit bigger Tell em Bob sent ya Quiet Sate Happy Electric Landings Everyone RC Pylon Racing/Hager Continued page 49 enough divide up wisely assign groups frequencies solely specific competi tion categories Nats can de signed no 31M 20P combina tions within group itself Thats good news 2 bad news will have ex elusive use of 50 channels 20 kHz spacing will have exclusive use 7273 MHz band PRS stands Private Ra dio Service will have intervening frequen cies available assignment 10 kHz spacing channels use paging systems whatever can operate up 300 watts output will potential adjacentchannel interference vengeance al ready us metropolitan areas Los Angeles basin example December 1987 Jim Riccio San Ga briel Valley R/C League using ICOM 7000 spectrum analyzer located five such paging sys tems within 10 kHz present channels year later December 1988 number proliferated 25 conceivable could have strong pagers interspersed between virtually channels near future lot airplanes have inexplicably bitten dust LA last year Thats get ting rid obsolete equipment hard way solution Yes requires using narrowband receivers will reject adjacentchannel signal 85 kHz away either side frequency such equipment already available am happy say both Airtron ics Futaba JR radios have just added AMA s listing 1991-cerrtfied equipment Ed 3 new phenomenon will appear called second-order product interference 20P Watizzit say Briefly two chan nels 23 channel numbers apart such RCl2 RC43 example operated si multaneously produce beat 460 kHz 20 kHz x 23 kHz hits almost directly top 455 kHz IF frequency used single-conversion re ceivers deadly results receivers George Steiner dubs 460 Splat about 23 Skidoo Almost single-conversion receivers vulnerable since IF employed 455 kHz solution problem Yes Dual-conversion receivers use firststage IF frequency 107 MHz effec tively screens out 460 kHz beat reaching second IF stage still 455 kHz before other words insist running single-conversion receiver after January 1 1991 keep eye out anyone 23 channels away frequency unless enjoy re building airplanes 1 cant vouch accuracy follow ing story illustrates what 20P can Denver recently group flying near 158 Model Aviation PRACTICAL SIZED GIANT SCALE MODEL PLANS Fiberglass Cowlings Canopies Available F-i5 4 Span 77 DC-31 1/2 1140Span$4200 F4tJ CORSAIR2 1/4 193SpanS3000 A6M5 ZERO2 1/2 191Span$3000 Plans RK-20 CURTIS P402 1/2 194Span$3000 RK-740 Ducted Fans AT-6 TEXAN24 1101Span$3000 antom 35 Span $1000 F8F BEARCAT2 1/2 186Span$3000 ggen 32 Span $1000 FOKKER DR-i27 163Tripe$2700 iS 36 Span $1000 ___________________________________________Catalog Plans Accessories Supplies n Canopy $1500 Credited First Order $25 More________________________________ Order From_________________________ Nick Ziroli29 Edgar Dr Smithtown NY 11787 USA516-234-5038
Edition: Model Aviation - 1989/09
Page Numbers: 46, 47, 153, 154, 158
LAST ISSUE opened some meet announce ments including Second Annual Elec trifest hosted Sb Fliers Morro Bay CA area time very little info pass along now have some details meet serious contest compared fun-fly format includes 7-cell Sail plane 7-cell Old-Timer Unlimited Sailplane Un limited Old-Timer Pylon Pattern Sport Scale events first four events above will flown four rounds beginning 900 am Saturday Based literature received will significant prizes won pos sibility dinner/social Saturday Pre registration $10 till August 1 $15 thereafter Please contact CD Cal Drake Box 1557 Morro Bay CA 93442 info Tell im Bob sent ya sure makes sound like weekend well covered end country great meets since 10th Annual KRC Electric Fly same weekend Pennsylvania Good luck happy landings everyone attending both ac tivities Gulf States Electric Fly-In scheduled Saturday September 30 Sunday October 1 sponsored Tammany Aero Club event anything Electric features Scale event AMA rules demonstration flights work shops swap shops concession stand awards prizes several fun categories free Cajun cookout contestants families flying site Tammany Aero Club Field Goodbee LA information contact Boyd OBrien PO Box 7153 Metairie LA 70010 telephone 1-504/835-5212 can also contact Ben Mathews 101 Mulberry Dr Metai- terializes what details areso keep ne LA 70005 telephone 1-504/833-5589 readin column Tentative plans underway two-day Elec tric meet Cape Cod Dates will October 2829 Sounds like good time orange-and-black planes early word Charlie Sylvia CS Flight Systems Ill let know maThe ElectroStreak Great Planes men tioned May June columns year May column brought response Tom Stryker designer model Tom wrote say some kind things about 46 Model Aviation Radio Control Electrics Bob Kopski 25 West End Dr Lansdale PA 19446 LLoyd Roberts Camden ME 8-ft-span 113/2-lb Turbo Beaver flies Astro 60 28 cells Hobby Lobbys Chip variant UHU Glider ailerons choice two wing sizes Graupners neat packaging power system Electro UHU L contains Speed 600 motor folding scimitar prop spinner assorted tools Tom Stryker designer ElectroStreak likes additional access hatches plane R bottom forward hatch between F2 F3 allow access motor speed control rear hatch aft F4 allows access servos Kurt Klingebiel Silver Spring MD now 12 years old has flying RC since 7 ElectroStreak has flown vari ety 7-cell battery packs com ments months column column comment hatch installation ElectroStreak pictured May photos month shows Im hatch preferences Tom himself has two own kit-built Streaks hatches shown located bottom model made /16 ply stock model set up landing gear also Tom doesnt use time Anyway Tom feels bottom hatches preferred its easier fully streamline top deck behind mo tor thats built solid case what can say ElectroStreak better off hatchesaccording both Tom Bob Tom went discuss possibility large Southeastern Electric meet next year Flor ida possible location would RC World has extensive facilities effect Tom ex plained intent make meet country Right now very early plan ning stages details firm up Ill pass along everything know column Best wishes Tom et al planning Another ElectroStreak photo month has some interesting info go along built Keith Klingebiel Silver Spring MD Keith built rudder save some weighs Beyond experimenting different seven-cell packs include 1200 mAh SCRs SR 1800 same weight flies full bore five minutes SR 1250 gives about three minutes full out about same time given SCRs first two packs all-up weight about 36 oz drops about 31 oz Continued page 153 Os ORDERS SHIPPED AY RECEIVED WARBIRD VIDE ANY TWO OUR 23RD YEAR VIDEOS ONLY $7595 ONLY $10795 SPE6IAL IIROD1JTORY DFFER ALL 6 VIDEOS ONLY $19995 WARBIRD CHECKOUT VOL Flying P-40 Warhawk Corsair Hellcat SB2-A Buccanneer Avenger NF 1325 Programs2 Hr Only $3995 WARBIRD CHECKOUT VOL II Flying P-38 B-25 Mitchell Bomber P-61 Black Widow Invader NF 1454 Programsi 00 Mm Only $3995 WARBIRD CHECKOUT VOL III Flying P-Si Mustang A-20 Bomber P-39 Introduction P-39 Advanced NF 1514 ProgramsliD Mm Only $3995 CALL TOLL FREE IT CARDS Li Money Order Check Credit Card Master, Shi0ping Paid Continental US-Foreign add $500 NP VIDEO LIBRARY 2554 LINCOLN BLVD #54 B&P Associates Gives Total Plight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need padwgel Cycler-ChargerpadsPlus $5 SEtw cm & Gilled Cell Tvlckler *3496Regular Model.. *4696 ForPlus $3 SEtH1For field kit sinai Plus $3 SEtH Multiple&Ogelectric boat batteriesSpecify 612 24V Heavy Duty Model. 85896 sport WInch lerge boat andPlus $4 SEtH electric power charging batteriesSpecify 6 12V CaRa ProductsSASE h*rmaiion PO Box 221 606-067-6924Dealer ijries itwitadcanton SD 67013 September 1989 47 Graupners motor control switch has circuit ry allowing power RC receiver motor battery pack column WARBIRD CHECKOUT VOL V Flying B-29 Pre-Flight BI7E Flight 8-24 NF 1553 Programs107 Mm Only $3995 WARBIRD CHECKOUT VOL IV Flying P-47 3 parts Flying T-6 3 parts NF 1366 Programslb Mm Only $3995 MODERN JET FIGHTER Flying FIA1 8 Hornet Eagle F-16 Fl 6C Th,nlnhirrk F-1~ NF 1635 Programs60 J Day Night tax 90291 Last Call Module 7SF ATRCS retro-fit program will end Iecember 311989 sure get conversion soon ATRCSTM Advanced Technology Radio Control System Converts Module 7SP advanced computerized control system Stores four aircraft setups Includes seven different servo configurations Individual surface travel limits centering Single switch presets launch speed modes Full trailing edge control Enhanced mixing functions Crow landing capability User selectable cross trim capability Flap stick reversing Elevator camber VTR Automatic selection high ail rudder mixing launch landing modes Fully installed kit year limited warranty Control Systems Laboratories 238 5 Hillview Dr Milpitas CA 95035 408 946-4142 Airtrom~ Module 75P1 regiziered trademarks AixIronies Inc ancc Mr Ken Bates true expert field flying wings Contrary what might think plane difficult fly very sta ble makes very smooth controlled turns should able flown anyone has used ailerons before wing loading 6 8 oz per sq ft Javelin flies about same speed typ ical designs ballasted 10 12 oz per sq ft increase performance attributed low-profile drag racing cup tea bal last Javelin 10-oz-per-sq-ft loading ready leave competition starting gate Construction Javelin very simple Itll probably fastest-built plane youve attempted quite some time After once finish building wing done Additional specifics Javelin fol lows wingspan 56 wing area 560 sq weight 24-36 oz wing loading 6 10 oz per sq ft airfoil Eppler 168 construction foam core balsa sheeting Since Ive flying Javelin quite now can attest its truly remarkable design Its loads fun variety ot condi tions best costs $39 including shipping Contact Bob 521 96th Lane NE Blame MN 55434 tel 1-612/780-2737 Klingberg Wing Similar Javelin Klingberg Wing offers modeler true flying wing ie no vertical surfaces delivers outstanding performance What distinguishes Klingberg Wing Javelin method obtaining stability Javelin employs re flexed elevon technique Klingberg Wing uses wing twisting Simplifying task achieving proper wing twist unique build ing jig thats included kit built Wing spans 78 has 659 sq wing area weighs about 20 oz Now Klingberg Wirg enjoying con siderable success Rollin Klingberg pursuing couple new designs Slope fliers will find quite interesting Im sure anyone fol lows aviation casually aware recent roll-out B-2 Stealth Bomber fliers upon first seeing impressive bomber must have envisioned possibility making slope Well Rollin did just thirk about years IMS ow Pasadena unveiled fabulous rendition B-2 pro totype %5-scale made fiberglass foam weighed about four pounds Though theres possibility kit version available will designed power flight ducted fan Im hoping Rollin will stick Glider Rollins other new ship small X-wing ca nard will called X-cel Both upper lower wings have 36-in span total weight should about 20 oz Construction will balsa ply price should stand about $40 can expect see X-cel avail able sometime late year information contact Rollin Future Flight 1256 Prescott Ave Sunnyvale CA 94089 tel 1-408/735-8260 Falcon Two southern Californias betterknown Slope Sailplane designers Carl Mass Mike Reed Carls Viper Mikes Slopar have pictured previous columns Now duo has collaborated very interest ing flying wing though Carl Mike com mitted severe breach etiquette adding vertical fin planes performance makes up possible sin Capable consecutive side outside maneuvers thanks symmet rical airfoil developed its designers Fal con offers Slope flier much aerobatic per formance could hoped Falcon features wingspan 49 length 23 442 sq wing area all-up weight 22-32 oz depending type radio used $20 get foam wing cores plans instructions template sheet Get touch Mike 1775 Dumitru Way #B Corona CA 91720 time being thats about have say subject flying wings canards Com ing future columns Jerry Bridgemans incred ible Slope Racer Snipe Chris Fouquets amazing taileron-equipped aerobatic ship look Slope Soaring Nats time read Nats will have heldand first time ever Slope Soaring will part look new Scimitar RS Slope Racer RC Electrics/Kopski Continued page 47 t250s Keith says latter pack lighter weight allows Streak zip along SR batterys performance impressive Giant Electrics opening topic June column prompted reader Lloyd Roberts Camden ME send photo very im pressive 8-ft-span Turbo Beaver 11 -lb model motivated Astro 60 28 cells Lloyd says first flights very promis ing position Giant Scale Electric neat Continued page 1S4 September 1989 153 GLIDER RETRACTS Precision units made USA air craft quality materials Two 1 /4 scale size units choose Std up 10 lbs HO over 10 lbs $5000 ea $350 S&H CA res add 7010 tax Send Sase information glass 1/4 scale OG 202 fuselage 1/3 & 1 /5 scale retracts available soon Scale Glider Components 7034 FERN PLACE CARLSBAD CA 92009 16193 931-1438 PiE7/Made America American Technolegy R/C & U/C ENGINES 15 thru 61 Glow Plugs & Spark Plugs Ignition Engines 29 35 ORIGINAL REPLACEMENT PARTS Kraft 61 Cox Conquest 15 Testor/McCoy Series 21 Taipan 40 HGK Forster Remco Viking twin DC 09 diesel call arte free informatIon RJL Industries PO Box 5 - Sierra Ma&e CA 91024 818 359-0016 Catalog 14 BIGGER ever over 200 things have never seen before NEW Giant Telemaster NEW High-performance Electric Motors NEW Props accessories NEW Electric Airplanes worlds FASTEST electric plane NEW FAST boats NEW Steam boat NEW ORACOVER covering material NEW Helicopter NEW sailpianes NEW accessories Name Street Address City Hes requested info September KRC meet msybe well rewsrded big Beavers appearance very impressive catalog update has just come Out Its Hobby Lobbys Catalog #14 what makes very impressive many pages things Electric including least 11 new items include motors gear boxes folding props kits cover catalog Electrically impressive shows Graupners Werner Detweiler launching Race Rat Hobby Lobby has kit modified version model won 1988 Pylon event World Champs St Louis performance model awesomely described two ways will climb almost verti cally out sight five seconds 2 took contest-winning wet-powered Quickie 500 finished dead heat Hummm So much wet power Now could talk folks HL bringing KRC meet her neat-sounding plane new too Chip described ass version Electro UHU Glider ailerons optional wingspans capable aerobatics UHU super flierI knowso Chip sounds very ap pealing Anyway according David Martin HL can get $2-value Catalog #14 free call ing writing Hobby Lobby 5614 Franklin Pike Circle Brentwood TN 37027 telephone 1615/373-1444 Tell em Bob sent ya July column tabulated some detailed quan titative performance information sizeable sampling 05-size UGHHHHH motors want pass along some qualitative info about Ive flying Great Planes Gold Fire mo tor Skyvolts couple months very impressive Im using seven 1200mAh SCRs either 7 x 6 8 x 4 nylon prop good results addition own experi ence Im getting similar input readers Im seeing same thoughts appear some Elec tric newsletters basically fast-turning motor such best used faster-moving planes motor has opportunity unload ade quately Personally would choose use direct drive slower-moving model such Gliders OTs have accumu lated enough experience see long mo tor lastsan item interest since motor basically throwaway brushes replaceable far its working just great Part just great taking account its $2495 list $1995 Tower Another motor bringing favorable comments Hobby Lobby Speed 600 72 volt motor used previously men tioned Electro UHU sounds very appealing $1380 have opportunity try item yet Astros Mini-Challenger should readily avail able really time read Bob Boucher chief charge Heh Heb Astro called few days ago passed along info Mini-Challenger has mill well over year reason another has met delay after another Anyway Bob tells its really finally com ing out Mini-Challenger designed around co balt 035 version Astro will supply kit combo motor plus variation Scimitar folding prop used UHU kit per sonally can attest superb flight characteris tics Challenger know folks would really like good-flying model smaller two-meter version MiniChallenger should work Out well Also since 035 five- six-cell motor charging 12volt sources snap Astro has some other good things mill also includes new charging equipment peak-detecting shutoff circuits built dont have date yet Anyway Bob tells over years Astro has sold over million chargers charging nothing new Astro product line upgrade expansion going time BEC products increasing number pop ularity may have missed mean ing Battery Eliminator Circuits idea use motor battery power re ceiver system well items showing up market reader interest increasing evidenced incom ing mail general BEC circuitry works regulating higher motor battery voltage down 48 volts nominal receiver servos oper ate off thereby eliminating separate receiver battery few ounces too electronics monitors voltage level motor battery pack cuts off power motor before pack gets low place con tinued operation receiver risk other words can continue flying full radio control no motor power Representative BEC products include motor controller used Electro UHU new Futaba MCR 4A receiver built-in speed control 6- 7-cell motors have recent personal experience BEC idea Long ago did good say least So Ive avoided concept using separate receiver battery time past difficulties motor noise getting receiver problems motor battery getting low lost radio also have assume newer products have somehow beaten prob lem piped-in motor brush noise re ceiver Im going revisit BEC idea future think may bit behind times topical area April column pictured latest greatestand ugly possibleElectric interconnects Wormies presenta tion laid claim total title forever ugly mating devices things Electric Now wouldnt ya just know Mitch Poling author Model Builders Electric column longest-running know inventor old Slug Plug omnimate wrote warn has new competitive design underway Tapeworm So far hes designed name device Anyway Im worried truly know heart Wormies unbeatable unbearable Anyway what Mitch really wrote about two things has investiga tion effects motor-brush angle re ferred matter very briefly July col umn expressed intent in-depth pursuit topic later column Mitch has pub lished findings July MB strongly encourage serious readers read material next item Mitch passed along dis appointing news next year family moving Germany three years Wife San dra will serve Air Force doctor during time Mitch kids Victoria Andrew Continued page 1S8 154 Model Aviation ma StateZip HoBg HT MASTER 3-D Helicopter Flight Simulator Protects Investment Speeds up flight training time Easy Use Mini- Tune Pipes 1 5%-20% Power SuperQuiet Easy Install Light Weight Stock #3000 Shutlie Stock #3001 Concept 30 Stock #3002 Baron 28 30 & X-CelI 30 Accepts helicopter sizesSuper Tune master ALL helicopter flight manuevers simulated under full flight conditions Pipe have complete control movement forward reverse left rightup down Design tor 3600 rotation hover Flight Master essential mastering difficultSuper Power or-20% up Superuuiei nose-in maneuver Perfect flying skills expensive crash repairs andSuper Quality Material Super Light Weight downtime Protect investment models motors machinerySuper Easy Inatallation List $19995 Stock #3010 Headers Available Stock #1001 Floats Water Snow Escellent Training Aid tor Beginners 20-30 Size Stock #2009 50-60 Size Stock #2010 HOBBY DEALERS TAKE ADVANTAGE QF QUR QUALITt PRODUCTS AT DEALER PRICE PLEASE CALL DR WRITE FQR DETAILS List $59 759 E BROKAW RD SAN JOSE CA 95112 List S2914081 436-1325 CENTURY IMPORT & EXPORT RC Electrics/Kopski Continued page 154 tagging along Sorry see leave soil folks Anyway good news hia MB Electric column will continue will take some European flavor cause will liv ing Weisbaden Mitch describes ing near heart Electroflying Europe feel deeply indebted Mitch since early Electric writings about 18 years ago key factor getting seriously interested Electric first successful Electric flight February/March time frame 1972quite some time past Mitchs Anyway interest pursuit eventually lead association MA About Electrics series 1983/84 column some feature articles along way Indeed very issue marks beginning sixth writing year Thank Mitch wish well note Ill close another column Please forward comment question SASE please author name address ap pear column heading Late news Winston-Salem Radio Control Club Inc North Carolina has announced its third annual Electric fly-in scheduled August 19-20 1989 meet events include AllUp/Last-Down cash prizes plus prizes Most Aerobatic Beauty Contact CD Charles Spear 288 Holly Lane Mocksville NC 27028 late news CS Flight Systems see ad has new Sanyo 1800 SCRs stock $650 sound like winners weigh 60 grams 1200s weigh 51 grams have height 49mm l200s 51mm lot juice can little bitty bit bigger Tell em Bob sent ya Quiet Sate Happy Electric Landings Everyone RC Pylon Racing/Hager Continued page 49 enough divide up wisely assign groups frequencies solely specific competi tion categories Nats can de signed no 31M 20P combina tions within group itself Thats good news 2 bad news will have ex elusive use of 50 channels 20 kHz spacing will have exclusive use 7273 MHz band PRS stands Private Ra dio Service will have intervening frequen cies available assignment 10 kHz spacing channels use paging systems whatever can operate up 300 watts output will potential adjacentchannel interference vengeance al ready us metropolitan areas Los Angeles basin example December 1987 Jim Riccio San Ga briel Valley R/C League using ICOM 7000 spectrum analyzer located five such paging sys tems within 10 kHz present channels year later December 1988 number proliferated 25 conceivable could have strong pagers interspersed between virtually channels near future lot airplanes have inexplicably bitten dust LA last year Thats get ting rid obsolete equipment hard way solution Yes requires using narrowband receivers will reject adjacentchannel signal 85 kHz away either side frequency such equipment already available am happy say both Airtron ics Futaba JR radios have just added AMA s listing 1991-cerrtfied equipment Ed 3 new phenomenon will appear called second-order product interference 20P Watizzit say Briefly two chan nels 23 channel numbers apart such RCl2 RC43 example operated si multaneously produce beat 460 kHz 20 kHz x 23 kHz hits almost directly top 455 kHz IF frequency used single-conversion re ceivers deadly results receivers George Steiner dubs 460 Splat about 23 Skidoo Almost single-conversion receivers vulnerable since IF employed 455 kHz solution problem Yes Dual-conversion receivers use firststage IF frequency 107 MHz effec tively screens out 460 kHz beat reaching second IF stage still 455 kHz before other words insist running single-conversion receiver after January 1 1991 keep eye out anyone 23 channels away frequency unless enjoy re building airplanes 1 cant vouch accuracy follow ing story illustrates what 20P can Denver recently group flying near 158 Model Aviation PRACTICAL SIZED GIANT SCALE MODEL PLANS Fiberglass Cowlings Canopies Available F-i5 4 Span 77 DC-31 1/2 1140Span$4200 F4tJ CORSAIR2 1/4 193SpanS3000 A6M5 ZERO2 1/2 191Span$3000 Plans RK-20 CURTIS P402 1/2 194Span$3000 RK-740 Ducted Fans AT-6 TEXAN24 1101Span$3000 antom 35 Span $1000 F8F BEARCAT2 1/2 186Span$3000 ggen 32 Span $1000 FOKKER DR-i27 163Tripe$2700 iS 36 Span $1000 ___________________________________________Catalog Plans Accessories Supplies n Canopy $1500 Credited First Order $25 More________________________________ Order From_________________________ Nick Ziroli29 Edgar Dr Smithtown NY 11787 USA516-234-5038