NEW MULTIPLEX RADIO time read Bob Boomer Beemer R/C West should have FCC approval begin selling new Multiplex Profi MC 3030 nine-channel ra dio radio made Germany transmit ter new top-of-the-line set can thought being third generation RC microcom puter technology follows Multiplexs Profi 2000 1980 Royal MC 1984 Unlike Royal MC transmitter Profi MC 3030 does use removable soft modules program software stored within its integral microcomputer Multiplex calls its software BOSS German Benutzer Orientierte Sender Sprache English means User Oriented Transmitter Language four-line 64-position liquid crystal display communicates user/programmer Geiman Bob will have complete instructions translations explain what transmitter saying Actually programing very simple stall everything airplanereceiver bat tery servosand tell transmit ter name plane setting up will store setups up 15 different planes successively call up 17 fixed concepts templates use standard modeling language like crow/butterfly flaper elevator compensation etc Integral Programmer interconnects superimpos es functions necessary BOSS talks display input instructions using eight keys under plate front transmitter final step set direction servos adjust lengths servo travel adjust mixing ratios between servos Profi MC 3030 transmitter has other features Some ones like six-cell Martin Bamerts fleet scratch-built giant DG Scale Gliders yard home Switzerland Wingspans range 375 50 meters 42 Model Aviation Radio Confrol Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Martin Bamert Speedo 87 Model uses wing-twist roll control designed fun flying mountain slopes would good Racer AMA folks would happier sleek design nose little less pointy Catalog photo new Multiplex Prof i MC 3030 transmitter has bells whis tles Multiplex radios available Beemer R/C West Address column 1 700-mAh battery pack providing nine hours operation built-in battery monitor beeps warn low voltage digital voltage display PCM PPM encoding auto matic backup security memory save set tings mixing arrangements program segments being changed short set corporates much state-of-the-art design youre going find available today Bob cant quote prices until FCC approval obtained give general idea said 3030 would bit Royal MC Expert set much less Profi 2000 replaces interested formation lets hope price list Id sug gest sending large SASE Bob requesting same address Beemer R/C West 7725 E Redfield Road Suite 102 Scottsdale AZ 85260 telephone 602 483-9577 closing clubmate electronics advi sor Kurt Rosner pointed out important dis tinction about radios Namely two parts radio bells whistles transmitter actual radio link between transmitter receiver sophisticated computerized mixing isnt much good plane hit interference What get Multiplex radio system proven work very well 10-kHz frequency-spacing environ ment used Europe years Dont get 1991 planned 20-kHz fre quency spacing US commercial us ers paging systems data transmission etc will broadcasting more heavily right tween frequencies So really must have l0-kHz selectivity receiverwhich Multiplex gives Martin Bamert September 1988 column Martins article make molded wings Sailplanes Feedback has very positive Im happy able show Martins work first love big Scale ships shown two photos taken parents lawn Bern Switzerland Grosseglers giant Glid ers flown high slopes Swiss Alps Since Martin moved temporarily States build something portable answer problem Speedo 87 described September specs Speedo 87 reveal should great F3F Slope Rac ing plane wingspan 945 elevator span 204 fuselage length 518 weight 759 oz wing area 470 sq ft wing loading 1615 oz/sq ft wing airfoil RG 12A-18/90 stab air foil NACA 0006 Martins big birds 135-scale models DG sailplanes made Glaser-Dirks Flugzeubau Germany fuselages 20 meters long Specifications follow given order plane name wingspan meters weight lb wing loading oz/sq ft back front Continued page 142 7f4iVGMFTigerskin4J WHAT DO YOU CALL THE BEST SHEETING MATERIAL FOR FOAM WING CORES Wing Mfg pioneered foam core wing construction early 60s have used everything tangowood 1202 stainless steel sheeting last few years have using pressure laminates evolved R & 0 work Uncle Sam Tigerskins pre-finish high density posterboard material clear laminated plastic film top simply apply contact cement such Styro-Stick adhesive cores end sheeting press sheeting onto cores material pliable can easily wrap around leading edges Tigerskins CHECK THESE FEATURES Superior strength weight ratio Superior bond capability foam 001 per sq temperature stability Smooth high gloss finish Superior resistance nitro fuel Superior resistance weather Easy apply Low low cost 01/64 x 23 x 35 size Comes following colors Waco Red Polar White Insignia Blue Sun Yellow $495 PER SHEET PkA~g7 8t5t ORDERING Send check money order required amount Add $395 shipping 1 6 sheets Add $749 shipping 7 12 sheets SEND TO Wing Mfg PO Box 33 Crystal Lake IL 60014 Illinois Residents add 6 1/20/s sales tax Super Styro-Stick wing skin adhesive $5OB 16 oz Can Item 4601 can does wing up 70 No extra shipping cost ordered Tigerskins See Tigrskins Chicago Model & Hobby Show Booth 1735 Aerospace Parks Means Business. Degrees Careers Men Women Degree Programs Aeronautical Administration Aerospace Engineering Aircraft Maintenance Engineering Aircraft Maintenance Management Airway Science Aviation Science/Professional Pilot Avionics Electrical Engineering Logistics Meteorology Transportation Travel Tourism Certificates Airframe Powerplant Technician Logistics Technology Write Call Admissions 618-337-7500 1-800-851-3048 1-800-851-7878 In Illinois Ii41j SEND $350 FOR CATALOG cityStateZip TelephoneSoc Security No Major December 1988 43 Competition Products foam wing cores availabale Full-Size saddles Top core L sits foam saddle cut Note trailing edges Right core R Full-Size saddle Extra chord saddle supports TE sheeting during laminating pro cess Theres info column Aerospace nations number employer Parks first aerospace education Pais College SAINT LOUIS UNWERSITY information complete mail Name Address HS Graduation Date Return Parks College Saint Louis University MACahokia IL 62206 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STITT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS servo connector Turn transmitter select op tion will notice will hor izontal scale drawn computer screen calibrated milliseconds moving pointer follows motion transmitter stick see Figure #7 prefer digital read-out pulse length theres also numeric read out measuring incoming pulse length nearest microsecond option serves two purposes can used measure end points stick travel also can used see well transmit ter sticks return neutral after theyve released Let stick snap back neutral take reading slowly return stick neutral see get same reading Move stick opposite direction same good set sticks will typi cally return within few microseconds same neutral setting time either direction measurement solved problem originally thought servo linkage problem systems plane would stay trim problem finally found sticky stick transmitter didnt al ways return same spot after re leased word cautionif select Op tion #7 have receiver connected computer have receiver connected no transmitter running computer will appear lock up nor mal Whats happening computer waiting pulse come User Port get out locked-up mode hold down Run/Stop key tap Re store keys Option #8 Slew Servo allows slowly move servo through its range using arrow keys lower right side keyboard change servo output arm position moving output arm position using option given read-out near est microsecond pulse length servo receiving option can used check servo linearity have large pointer con nected servo output arm protrac tor other means accurately determin ing pointer position could plot curve pulse length horizontal axis servo rotation vertical axis servo truly linear curve plot will turn out perfectly straight line Figure #1 have about hours work $10 can build transmitter checker automated servo testing setup using handful parts inex pensive home computer dont hap pen have Commodore C-64 computer should someone within club does computerized radio/servo checker could make interesting group project something club could make available service during meet ing rainy weekend give mem bers means checking RC systems hope find useful tool Parts List 1 ea Aileron Connector match radio sys tem 1 ea PC Card Edge Connector match Com modore C64* IC Electromcs part #41-804 #41-816 Amphenol part #225-2-12-2-4-1-01 Cinch part #251-12-30-160 1 ea Experimenters Dual IC Board Radio Shack catalog #276-159 1 ea 2N3638 MPS2907 other PNP silicon general purpose small signal transistor Radio Shack catalog #276-2023 1 ea 4700 Ohm A-watt resistor Radio Shack catalog #271-1330 1 ca 22000 Ohm A-watt resistor Radio Shack Catalog #271-1339 Solder wire miscellaneous small hand tools *The cost PC card edge connector lo cal electronics dealer approximately $375 Its also listed part number 12/245E Jameco Electronics catalog costs $149 can reach Jameco Electronics 415 592-8097 write 1355 Shoreway Rd Belmont CA 94002 Janieco has $2000 minimum order may want get few friends together prepare bulk purchase Jameco also requires 5% handling fee $100 minimum Call Ja meco cant find connector locally have handful connectors Ill pro vide $500 first-come basis until supply runs out Please include pre-addressed stamped envelope orders case check has returned software project available Commodore diskette au thor CompuServe No hard copy printout available diskette can obtained sending $500 check money order cover cost disk mailer postage Bernard L Stuecker 2433 Carey Ln Vienna VA 22180 CompuServe subscribers can GO MOD ELNET find program software dowaloading Library 11 com mand BRO KEYSERVO can get CompuServe subscription information calling CompuServe 800 848-8199 AMA member would like free CompuServe subscription kit write Doug Pratt AMA HQ 1810 Samuel Morse Dr Reston VA 22090 ModelNet AMAs computer bulletin board service need information about project please sure include pre addressed stamped envelope query address above RC Soaring/Blakeslee Continued page 43 planes DG-100/428/132/229 DG-200 Acroracer/3 75/[ 106/ 128]/293 DG-200/ 428/119/257 DG-l00/428/143/250 DG 202/500/[139/16 11/216 first DG-100 now 11 years old wings DG-200 conventional con struction 2mm balsa sheeting steel blade joiners others have blue foam cores covered fiberglass obechi made using vacuum-bag technique DG-202 50 142 Model Aviation OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 E ADD $100 auinrn IAIITLJIId 2A UfI R5 Fox 1988 Schneurle SPECIFICATIONS BORE650 STROKE600 DISPLACEMENT199 WEIGHT8 oz RPM 8-4 prop17000 FUEL CONSUMPTION4 az/mm Recent Fox design gives engine performance punch exotic racing motors have engine docile nature has hot restart capability lacking ABC motors Order# StyleCost 12000 Fox 19BBCL$5995 22000 Fox 19BB RC lw/muffler $7995 Fox 25 SPECIFICATIONS BORE680 STROKE680 DISPLACEMENT25 RPM 9-4 prop12000 WEIGHT6 oz FUEL CONSUMPTION4 02/mm Light Powerful Big 25 light 1 9s packs power some 29s superb performer Fox 25 has market long enough thoroughly tried tested Its American made features MKX-type carburetor Order#Style 12500Fox 25 Bushing CL 22500Fox 25 Bushing RC lw/muffler Cost $4995 $6995 meters wingspan 167 ft certainly impres sive machine Can visualize throwing off side mountain Martin says about 202 flies very well due its long wing behaves somewhat sluggishly air still completely aerobatic can flown light breezes wing loading 25 oz/sq ft DGs use Wortmann air foils similar used full-size gliders Contrary popular opinion 11 years back sections perform very well Scale Gliders have flown high wing loading higher speed yield good performance Competition Products foam wing cores guys talk around country agree best wing cores theyve seen come Ed Ber ton Competition Products Florida Ed cuts cores longer normal can sup ply full-size beds ones come cores use pressing wings dreams what Ed says about work ensure quality precision wing cores cut exclusive motor-operated foam-cutting machine Cores exceptionally smooth trailing edges straight sharp can cut size chord within reason taper Maximum wing panel length 72 would impossible stock airfoils chord sizes however stock one-piece E-2 14 Windsong wing cores have templates 31 Eppler air foils 15 Seligs Quabecks others order set custom wing cores simply send set root tip templates along panel length maximum length 72 taper desired prefer will make tem plates additional cost 'Competition Products manufactures two types foam wing products conventional cores new Full-Size construction saddles Con ventional standard cores have around years cut undersized allow wing sheeting usually a / removed top bottom airfoil core can 3/4 1 narrower width chord finished wing means apply adhesive press skins core trailing edge sticking out saddles up inch no support usual result wavy trailing edges Most airfoils used Sailplanes have very delicate trailing edges must kept straight sharp often undercambered main tain airfoils shape obtain perform ance designed profile Keeping 3/4 unsupported trailing edge straight maintaining airfoil very criticalbut always easy Competition Products has answer Full-Size construction saddles Unlike conventional cores cut under sIze Full-Size construction saddles cut same size finished wing chord dimen sion same important airfoil ts exactly same finished wing wing core sheeted placed between Full-Size top bottom saddles finished trailing edge wing flush con struction saddles wings trailing edge fully supported along entire length pan el therefore kept perfectly straight assum ing building surface straight BR Full-Size construction saddles integrity airfoil maintained 100% Full-Size construction saddles must used matching set conventional cores cores come Full-Size saddles just along ridethey used thing BR Full-Size saddles used suspected forces insignfl cant spiral propwash pushing rudder overriding force play sed little test Take North PacJic type rubber model Assemble andfly willfly left turn circles Now cement stab CA extend rudder slotfrom top bottom Put rudder facing down will fly right turn circles Replace rudder longer parallel sheet can slide up down will able find position top forces bottom forces balanced model will fly straight Conclusion orities just plain wrong second popular belief just isnt Reducing crankcase volume 2 cycle model airplane motor will improve its power observations didnt jibe theory devised test fitted unported cylinder piston rear cover could pull piston out motor running thus varying crankcase volum& Result very slight increase RPM crankcase volume increased didnt expect test repeated several other Fox motors le brand Xmotors case maximum RRM achieved somewhat greater case volume stock Conclusion authorities hopping up motor just plain wrong third popularfallacy certain imported motors best can buy simple test can run yourself Buy Fox 40 Standard slightly costly 0540 EP Check both ease starting power idle throttle response Need tell results bock-up test buy Fox 50 its expensive imported counterpart Perform same tests Condusion orities tell buy imported motor just plain wrong Happy Flying 3JA Manufacturing Company 5305 Toweon Avenue Fort Smith AR 72901 Phone 501 848-1656 144 Model Aviation everything told example often told motor torque gyroscopic action causes aircraft want turn left power applied FOX MANUFACTuRING CO 5305 Towson Avenue Fort Smith Arkansas 72901 501 646-1656 5 WE ARE SHOOTING DOWN 4w4 HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only 3D BALSA TRIANGLES 36 1414 25 3838 30 1212 35 3434 45 1~1 55 3116 3718BALSA PLANKS36 452411 51612154 612013200 3014280 31241 23275 261124350 3022225 484423325 565524435 662833495 753734588 8446 13955TAPERED SHEETS36 70142 3143 238 2 68 78383 98 65123120 90 BALSA SHEETS 36 48 1162 33 3322 40 18 2 43 3162 49 14 2 56 1323 37 1203 37 1163 37 48 3323 44 58 18 3 54 71 3163 62 82 14 3 7395 5 163 85110 38 3 66124 123110155 34 3165191 1164 5876 3324 70 94 164 80106 3164 93122 44110134 38 4165225 12 4225261 MATCHED SHEETS 42 3324100 80108 3164120 144131 BALSA SliCKS 3645 1161409 1163810 1161214 332 1410 332 3812 332 1216 18 1808 181411 183812 181210 31631611 316 3817 316 1222 14 1416 143819 41221 143434 14 140 51651671 38 3827 381232 383442 3812 21236 123446 12158 566648 343467 BALSA HOT LINE Cell 1806 745 6394 10 em 6pm Ceefral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 LONE STAR EPOXY 900LSI695 598 lSrrls598 3Orn,598 LIGHT 4-6 LB WOOD36 1323 53 1203 53 1163 53 3323 63 183 77 3163 89 143104 383122 123158 343242 3335 1164 83 3324100 164115 3164133 144158 364236 124322 TRAILING EDGE 36 14132 5161 14 39 3611246 12270 INSTANTGLUE loOSca298 1 oo TIne 298 2oo Thick 550 20 15, 556 BASSWOOD48 316311626 3161438 3163838 31161/246 31163460 1141442 143849 143480 318 31860 3811270 318 31490 121290 1234100 BUNDLE DEALS 20-116336 699 201164361035 20332 336 865 16332436 965 1518336 735 1018 436 695 15316336 920 103164 36 835 1014336 655 1014436 938 10318336 870 5318436 655 51123036 548 512436 1088 10332448 885 518448 500 5316448 600 514448 645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 18 1i8 18 14 18 38 316 3116 114 14 114 318 14 12 318 38 3i8 1i2 1212 1234 1725 2026 2232 2638 3450 4055 4565 4968 6077 6688 7597 SPRUCE TRIANGLES 36 38 3847 121264 34 HARD MAPLE 1 4 38 3838 3812 3834 1 2 34 BIRCH DO WEL S 18 316 14 516 36 IS 40 45 50 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412620 13212445 11612455 1812485 S PLY BIRCH 3132 12 11812 316 12 114 12 38 12 12512 48 588 625 625 625 725 900 LITE PLY 48GROOVED LGMOUNTS 12 Inches 383418140 3834 16132140 1234l3116l45 186155 1812315 ________________________ _____________________ 146 250 1412495 cost s Handling Charge pay UPS Add $250 COD $300 extra PP APO FPO States accept VIsa Master Card personal checks COO 63% lao 111 reuas US currency 0014 MrSirrrunr Wood Order 110 00 I~I1LU [6] i _______________ during sheeting/pressing process Washout can built both conventional cores Full-Size saddles thus assuring both wing panels will exactly same conventional cores Full-Size saddles cut 1 -lb-density white virgin foam Re ground material used Two-pound-density blue foam also available additional cost items shipped UPSno COD cannot shipped PO Box address Conven tional cores Full-Size saddles $45 per set plus UPS Multipanel wings $2250 per pan el plus UPS Custom templates $30 per pair info order sheet send SASE Ed 921 Birdie Way Apollo Beach FL 33570 telephone 813 645-5171 Next month well have scoop Ed skins wings using epoxy resin adhesive ATRCS follow-up August 1988 column re posied ATRCS microprocessor conversion Airtronics Module 75P transmitter may recall amazing system designed being sold byControl Systems Laborator ies Silicon Valley CA As good control system sounded paper theres old saying about proof pudding o reason extremely happy receive re port Satlplaner ATRCS actually worked him following letter Asher Carmichael Daphne AL Asher professional wood worker dealing things like fine furniture clock cases Readers Jim Grays RIC Soaring Digest will recognize Ashers name because has writing very informative entertain ing series articles Sailplane construction techniques Ashers ATRCS report old saying among cabinetmakers mark master craftsman whether make mistakes correct continue make enough unreconcilable gaffes profession possibly considered jour neyman seem transfer same ten dency modeling interests times mistake will present itself seems no way out Occasionally an swer found salvages situation may pearl great price Such case Windsong Having decided fly Windsong pri mary contest ship set about finding out could about plane compatible radio sys tems Some people said build plane equip just like Dodgson says Others said No will missing something dont mix functions electronically Well being tinkerer heart hav ing enough experience know otherwise went out bought Airtronics Module 75P elec tronically control plane dreams read letters put out 75P fliers seemed way go After push switch herer pull lever trimmer could achieve functions Dodgson recommends plumbing Let tell after first few flights just knew made right decision plane performed flawlessly could change throws compensations mixing values etc twist pot reveled upmanship few months placed very first contest Other fliers beginning whisper Better watch Carmichaelhe has hot plane finally taking metal home So said myself Now time really start playing Continued page 149 fliS oia timer perfectly proportioned modeling Curtlss Robin 049 EngInes -channel RIC 4 Wlngspsn ElectrIC Power Optional 12295 511 e103 Very few lull scale aircra8 ideaily nailed model flight appealing old Carliss RoSin horn spruce linen age heaulilulty pmportioned ruhh8r electric glow engines Easy tan SolId trainerlike perlormence Flytine Models Catalog hOt phOne 1783127316683 INE MODELS INC PO Box 2136 Falrlax VirginIa 22031 LL5A December 1988 145 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa TWO NEW FLIGHT BOXES Completely assembled aud tinished 51440 USA Both lop quality wood conslraclion Two large drawers Unique drawer locks Small hoc $8500 plus shipping Large hoo5 12500 ptas shipping includes laeI cumparlmentbatteryypuwnr panel coerparlmenladlaslable tuselage cradles Money hack guarantee send 53 101 specs call 415 3637732 lease nressage Flights Fancy e coma de flag P0 80 1 La Plonda Ca 84820 4 19 4 # / ADULTS $300 CHILDREN 612 $100 w/adflt SENIOR CITIZENS $200 NEW PAVILION & EXPO HALL WESTERN WASHINGTON FAIRGROUNDS POYALLUP WASHINGTON FREE PARKING OC I1 FOR INFO CONTACT DON SWEASY 206 847-1279 PO BOX 73939 PUYALLUP WA 98373 OR BOB BEAN Evenings 206 848-0160 PACIFIC TIME) -4 RC Soaring/Blakeslee Continued page 145 switches levers have budding reputation uphold better unlock full per formance envelope airplane additional setup instructions gath ered through modeling press 7SP worked just greaton ground Push flap trim lever forward pull flap preset switch hack reflex Slide side pot forward spoilerons throttle stick down flaps Its quite easy youre flying 0K Im air Oh no bad sinkhave get Out Lets see flap trim forward left hand flap switch hack right reflex other way around Hey whos flying airplane Oh well Im really used yet Uh-oh already time land Flaps down throttle stick left hand spoiler ons up side pot left hand Oops Im land ing short Quick get everything hack neutral hand Youve got kidding Friends didnt take long realize stuck part limited capabili ties whether own didnt listen Dodgson could have control functions onor adjacent tothe sticks right fingertips continued fly Windsong during contest season benefit what con sider easy control functions did manage place few contests Still thought oc curred Wouldnt nice day answer dreams came mail description ATRCS though would cost seemed like logical way out already 75P re luctant give up some its features switching hack mechanical mixing Send transmitter along $300 California article said problems will solved Tom Mroz Eugene Engelau Control Systems Laboratories designed retrofit 75P called Advanced Technology Radio Control System ATRCS pronounced A-Tracks short Basically digital en coder replaces pots switches computer LCD readout six keypad tons understanding sys tem could everything wanted doand morewith two transmitter sticks three-pole switch Well couldnt wait price seemed high considering what plane already might pearl after gave let tell am glad system turns 75P absolute wonder now equivalent advanced radio world mixing presets available boggle mind easy set up fly well Someone finally given us Glider-guiders elec tronic capabilities manufacturers tantalizing us long system designed Sailplanes panic ularly multichannel ones encoder asks certain questions concerning functions de sired and/or available questions dis played LCD respond yes no set control surface movement use increment/decrement buttons Such things electronic centering travel vol ume mixing kinds presets easily obtained seven templates com puter correspond control con figuration likely encounter F3B flying wings Just pull up LCD away gosetting things up liking can program store setups four different planes same plane dif ferent settings transmitter convenient switch added above flap stick ena bles change another compatible setup during flight real advantage wish have plane programmed different condi tions tasks Flip switch fly can add drop out mixing change con trol surface travel As example have four independent servos flaps ailerons could switch flight between flape rons standard aileron/flaps configuration two functions appeal Windsong spoileron/crow threeposition trailing edge presets functions re quire have independent aileron servos thats small price pay benefit Spoilerons begin actuating flap-stick position choose position flap stick appropriate location enter en coder memory pressing two buttons As lower flaps both ailerons will start rising gether pass threshold position what meant spoilerons ailerons go up act like spoilers Crow means flaps down ailerons upthe effective means glidepath control BR yes can pro gram reverse differential spoilerons along elevator compensation dont like spoilerons time can drop out deleting alternate setup ac tuate setup flight flick alter nate switch three-position trailing edge presets lo cated three-pole switch top trans mitter Push switch forward trailing edge launch modeflaps down say 200 ailerons down 100 combination Center switch neutral cruise setting Push switch back entire trailDecember 1988 149 VINTAGE FORSTER ENGINES Using original casting dies lastest computer control led machi ery RJL producing highest quality lowest priced vintage engines avai able Both engines come complete original reprinted box literature Ignition version equipped clear plastic tank single speed Forster timer Both engines perfect SAM Old Time Stunt events Delivery Dec 88 glow Mar 89 ignition Satisfaction Guaranteedl Add $300 per engine shipping handling Calif residents add sales tax Glow plug spark plug coil condenser included RJL INDUSTRIES PO Box 5 Sierra Madre CA 91024 818 3590016 ing edge reflexed 60 high-speed flying An add-on programmable switch some transmit ters may give last two settings will give elevator compensation appropriate mode ATRCS does though Windsong doesnt need side pot 7SP can now programmed adjust camber along entire trailing edge might advantageous planes hav ing airfoils benefit slight camber changes light lift other trailing edge functions remain effect option mixing gains adjust ments available ATRCS havent really explored yet should pointed out transmitter will work flight packs other Airtronics same frequency course will also work new Airtronics Spectra PCM receivers well standard PPM/FM nice feature extra margin safety Also travel volume readouts percentages makes snap return control surfaces previous positions start playing planess trim settings features ATRCS/7SP system flies just like other proportional radio control sticks trim pots etc work nor mally would takes about two weeks including shipping time CSL work transmitter returned professionally printed instruction manual quite thorough understand able one-year warranty ATRCS components workmanship CSLs address 1361 Fallen Leaf Dr Milpitas CA 95035 tele phone 408 946-4142 Maybe some method madness know ATRCS has blessing Windsong system time has come have inclination mix control functions Windsong other full-function Sail plane electronically dont settle anything less ATRCS Hi-Performance Sailplanes Martin Bamerts ar ticle making wings molds sparked lot interest high-tech Sailplane wing construc tion methods first question people ask can buy materials Therefore glad hear Ron Wagner has just started up Hi-Performance Sailplanes Ron spe cializing materials needed molding vacuum-bagging wings expense out-of-sight minimum orders Rons rundown current offerings 1 HP Cell wing skins Hi-Performance wing skins new product designed replace balsawood skins enhance wing surface quality glass cloth used over blue foam material engineered replace 2mm Rohacel sightly denser 5 lb/cu ft Its thickness 060 15mm means less volume lower-weight wing sheet size 24 x 96 ideal larger Gliders eliminates splicing balsa sheets 2 Three types epoxies Type 1 thinviscosity laminating epoxy suitable bonding lightweight cloths wing skins Type 2 wing-skin-bonding adhesive works well HP Cell blue foam Type 3 recommended structural bonding adhesives first true epoxy adhesives market Epoxies bonding blue foam require certain properties have considered epoxy de velopment Available quart size plus hardener 3 Magnalite carbon laminates Type unidi rectional carbon fiber 007 x 1 x 72 Type 2 same except 014 thick Type 3 tapered 030 root 007 tip 72 long material can custom cut var ious lengths widths 4 Nomex HP honeycomb 3-lb cell-structure honeycomb 080 x 12 x 96 5 Fibergloss cloth 1 4-oz treated E Glass use HP Cell wing skins also stocks 2-oz treated E-Glass 6 Mylar sheets 014 thick laying over wet epoxy/glass during vacuum bagging Mini mum size 48 x 36 Hi-Performance Sailplanes address 17902 NE 156th St Woodinville WA 98072 tele phone 206 487-1721 suggest sending SASE Ron requesting latest price list mention ing exactly what application can prob ably assist getting started path higher-tech higher-performance Sailplanes NSS update Cliff Oliver Secretary/Treasurer Membership up 15% time last year Interest host clubs sponsoring Soar-In competition also up year thanks ef forts Marshall Long anyone interested hosting Soar-In next year start planning now contacting Marshall 824 Garden Meadow Universal City TX 78148 telephone 512 6593337 New year bimonthly publication Sailplane columns being written exclusively F3B Don Edberg Cross-Country Miles Moran fellows have years experience disci plines passing along us lot great formation prospective NSS Handbook has put hold time being need find mat agreeable Everyone involved great ideas opinions time feel handbook ready put place anyone would like free copy Sailplane includes membership application NSS drop line 8151 Broadway San Antonio TX 78209 give call 512 821-6299 As say cooler commercial Thank support League Silent Flight news Sailplaners have achieved Level V account about 1 % total LSF membership 6100 since list now boasts 62 names new Level V members LSF Numbers date achievement No 57Dennis Chall #38338/8/87 No 58Guy Dickes #336010/13/87 No 59Bob McGowan #228610/24/87 No 60Bob Sowder #379511/7/87 No 61Brian Agnew #314012/16/87 No 62Douglas Barry #16444/30/88 Congratulations guys July issue LSF Shortlines went out about 1200 members didnt get want keep up LSF happenings drop postcard name address LSF PO Box 647 Mundelin IL 60060 New monthly magazineSlope Soaring News Lovers Soaring slopes will glad know new journal devoted solely Slope news Slope Soaring News being pub lished out Signal Hill CA Charlie Morey Chuck Korolden Marcie Berriz what Charlie has say about new venture Heres first issue Slope Soaring News #1 see deals RC Slope Soar ing specifically its practiced California say California please dont think snubbing other fliers across US Its just tiny new publication volunteer staff three dont pretend represent Slope Soaring national level wel come contributions readers across US would delighted print interesting 150 Model Aviation Elm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 EAJGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL Now SEE YOUR ORDER NO NITRO CASE Synthetic/CastorBlends 31300055%Byro-Ji 31300065%Premiu 31300088%Premiu 313001010%Byro-Jet 313001110%Premiun 313001210%4 Cycle 313001615%Premium 313001715%4Cyc1eS 313002020%Byro-Jet S 3 13002525%Premium C 313003535%Premium Co 313004545%Premium Co Straight Synthetic 21200055%Byro-Jet Strs 21200065%Premium 212001010%Byro-Jet 212001110%Premium 01515%Premium 5 212002020%Byro-Jet aighi 212002525%Premium ompel 212003535%Premium Compel 2 12004545%Premium Compel Minimum Order Quantity--i Case Byron Originals Inc ACTORY PRICE PER GAL CASE OF 4 1-4 CASES 5 CASES & UP $ 800S 750 800750 860810 900850 900850 900850 10751015 10751015 12501175 1335 1650 1965 7 info anywhere world hope wider recognition will come time now hopelessly local Californians course thats bad innovative ingenious Gliders flying buddies bring slopes weekend newsworthy Slope Soaring News will bring new con cepts forum can share knowledge SSNs first issue lots interesting stuff 16 pages full-size 8 V2 x 11 very well writ ten has photos professionally printed years subscription $1595 Make check Out Charlie Morey send SSN 2601 E 19th St #29 Signal Hill CA 90804 think youll like F3B news As write Team Selection Fi nals coming up two weeks September 1718 Los Angeles course time read contest will have over six weeks ago cant tell made Team until next month latest news about winches ClAM president rescinded new restricted power winch rules adopted April meeting Paris evidently because internal motor bat tery resistance difficult measure first thought wait end means action has stirred up some very strong protest action AMA F3B Team Selec tion Committee Chainnan Don Edberg ClAM F3B Subcommittee Chairman John C Grigg well recommendations AMA Executive Director/CIAJvI Secretary John Worth As date publication issue Model Avi ation situation has resolved F3B program participants Contributing Editor ron Blakeslee will informed AMA HQ staff members further developments RMcM 1988 Team Selection finalists 23 number come four areas around country northern southern California Colorado Illinois finalists Northern CaliforniaBrian Chan Seth Daw son Gene Engelau Rich Spicer Southern CaliforniaMike Bame Don Edberg Gary Ittner Larry Jolly Daryl Perkins Steve Rae Rick Schrameck Joe Wurts ColoradoScott Dukes Bob Edson Mike Hickman Lenny Keer Randy Reynolds Jack Sasson John Wyss IllinoisRich Burnoski Wayne Fredette Jack Hiner Jim McCarthy best luck RC Old-Timers/Mathews Continued page 44 Loreli song Build sometime As can see three-view drawing answering song can challenging model easily built Old-Timer Perhaps complexity explains Barney Snyders much simplified Spook mentioned last column admitted rip-off Mystery Man Ill get suggested modifications rework design since figure anyone capable building wing bit com petent am would suggest however using rule thumb 250 sq wing area u engine displacement choos ing power plant overpower beautiful airplane screaming rate climb such would pure sacrilege opinion Mystery Man full-size plan available No 3A7 Old Time Plan Service 253 No 4th St PO Box 90310 San Jose CA 95109Joe Weathers Aeroneers Joe Weathers founding member San Diego Aero neers 1935 remained active member un til death 49 years later nominated AMA Hall Fame club particu larly through efforts Jim Alaback ducted August 1988 Jim has able obtain vast collection Joes materials has now cataloged re stored drawings photos preserva tion San Diego Aerospace Museum Joes family friends have helpful Jims efforts inasmuch sensed impor tance preserving material future Alaback has arranged Joes unpub lished designs mostly drawn shelf paper traced onto vellum reproducible copies have provided AMA Museum Old Time Plan Service also making copy negatives Joes original photos well newspaper clippings etc total documented design list has now ex ceeded 100 published unpublished planes Among drawings three-view Tubby see column October 1980 annotations indicate Weathers developed model part design proposal fullsized aircraft Obviously nothing came wouldnt its esthetic appeal have vastly greater Aeronca C3 does resemble Aeroneers publishes newsletter best can subscribe $750/year writing Jim Alaback 16634 Diaz Dr San Diego CA 92128 History its artifacts brief overContinued page 154 December 1988 151 BYRONPerformance Blended Fuels ORIGINALSINcF Higher Smoother Running Slut erior Lubrication ualled Rust Protection TENTLY BLENDED specific use 1oesnt stock Byron Originals Fuels order direct E FREE FREIGHT Overseas call shipping quote RETAIL PER GAL $1095 1095 1195 95 5 3310
Edition: Model Aviation - 1988/12
Page Numbers: 42, 43, 142, 144, 145, 149, 150, 151
NEW MULTIPLEX RADIO time read Bob Boomer Beemer R/C West should have FCC approval begin selling new Multiplex Profi MC 3030 nine-channel ra dio radio made Germany transmit ter new top-of-the-line set can thought being third generation RC microcom puter technology follows Multiplexs Profi 2000 1980 Royal MC 1984 Unlike Royal MC transmitter Profi MC 3030 does use removable soft modules program software stored within its integral microcomputer Multiplex calls its software BOSS German Benutzer Orientierte Sender Sprache English means User Oriented Transmitter Language four-line 64-position liquid crystal display communicates user/programmer Geiman Bob will have complete instructions translations explain what transmitter saying Actually programing very simple stall everything airplanereceiver bat tery servosand tell transmit ter name plane setting up will store setups up 15 different planes successively call up 17 fixed concepts templates use standard modeling language like crow/butterfly flaper elevator compensation etc Integral Programmer interconnects superimpos es functions necessary BOSS talks display input instructions using eight keys under plate front transmitter final step set direction servos adjust lengths servo travel adjust mixing ratios between servos Profi MC 3030 transmitter has other features Some ones like six-cell Martin Bamerts fleet scratch-built giant DG Scale Gliders yard home Switzerland Wingspans range 375 50 meters 42 Model Aviation Radio Confrol Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Martin Bamert Speedo 87 Model uses wing-twist roll control designed fun flying mountain slopes would good Racer AMA folks would happier sleek design nose little less pointy Catalog photo new Multiplex Prof i MC 3030 transmitter has bells whis tles Multiplex radios available Beemer R/C West Address column 1 700-mAh battery pack providing nine hours operation built-in battery monitor beeps warn low voltage digital voltage display PCM PPM encoding auto matic backup security memory save set tings mixing arrangements program segments being changed short set corporates much state-of-the-art design youre going find available today Bob cant quote prices until FCC approval obtained give general idea said 3030 would bit Royal MC Expert set much less Profi 2000 replaces interested formation lets hope price list Id sug gest sending large SASE Bob requesting same address Beemer R/C West 7725 E Redfield Road Suite 102 Scottsdale AZ 85260 telephone 602 483-9577 closing clubmate electronics advi sor Kurt Rosner pointed out important dis tinction about radios Namely two parts radio bells whistles transmitter actual radio link between transmitter receiver sophisticated computerized mixing isnt much good plane hit interference What get Multiplex radio system proven work very well 10-kHz frequency-spacing environ ment used Europe years Dont get 1991 planned 20-kHz fre quency spacing US commercial us ers paging systems data transmission etc will broadcasting more heavily right tween frequencies So really must have l0-kHz selectivity receiverwhich Multiplex gives Martin Bamert September 1988 column Martins article make molded wings Sailplanes Feedback has very positive Im happy able show Martins work first love big Scale ships shown two photos taken parents lawn Bern Switzerland Grosseglers giant Glid ers flown high slopes Swiss Alps Since Martin moved temporarily States build something portable answer problem Speedo 87 described September specs Speedo 87 reveal should great F3F Slope Rac ing plane wingspan 945 elevator span 204 fuselage length 518 weight 759 oz wing area 470 sq ft wing loading 1615 oz/sq ft wing airfoil RG 12A-18/90 stab air foil NACA 0006 Martins big birds 135-scale models DG sailplanes made Glaser-Dirks Flugzeubau Germany fuselages 20 meters long Specifications follow given order plane name wingspan meters weight lb wing loading oz/sq ft back front Continued page 142 7f4iVGMFTigerskin4J WHAT DO YOU CALL THE BEST SHEETING MATERIAL FOR FOAM WING CORES Wing Mfg pioneered foam core wing construction early 60s have used everything tangowood 1202 stainless steel sheeting last few years have using pressure laminates evolved R & 0 work Uncle Sam Tigerskins pre-finish high density posterboard material clear laminated plastic film top simply apply contact cement such Styro-Stick adhesive cores end sheeting press sheeting onto cores material pliable can easily wrap around leading edges Tigerskins CHECK THESE FEATURES Superior strength weight ratio Superior bond capability foam 001 per sq temperature stability Smooth high gloss finish Superior resistance nitro fuel Superior resistance weather Easy apply Low low cost 01/64 x 23 x 35 size Comes following colors Waco Red Polar White Insignia Blue Sun Yellow $495 PER SHEET PkA~g7 8t5t ORDERING Send check money order required amount Add $395 shipping 1 6 sheets Add $749 shipping 7 12 sheets SEND TO Wing Mfg PO Box 33 Crystal Lake IL 60014 Illinois Residents add 6 1/20/s sales tax Super Styro-Stick wing skin adhesive $5OB 16 oz Can Item 4601 can does wing up 70 No extra shipping cost ordered Tigerskins See Tigrskins Chicago Model & Hobby Show Booth 1735 Aerospace Parks Means Business. Degrees Careers Men Women Degree Programs Aeronautical Administration Aerospace Engineering Aircraft Maintenance Engineering Aircraft Maintenance Management Airway Science Aviation Science/Professional Pilot Avionics Electrical Engineering Logistics Meteorology Transportation Travel Tourism Certificates Airframe Powerplant Technician Logistics Technology Write Call Admissions 618-337-7500 1-800-851-3048 1-800-851-7878 In Illinois Ii41j SEND $350 FOR CATALOG cityStateZip TelephoneSoc Security No Major December 1988 43 Competition Products foam wing cores availabale Full-Size saddles Top core L sits foam saddle cut Note trailing edges Right core R Full-Size saddle Extra chord saddle supports TE sheeting during laminating pro cess Theres info column Aerospace nations number employer Parks first aerospace education Pais College SAINT LOUIS UNWERSITY information complete mail Name Address HS Graduation Date Return Parks College Saint Louis University MACahokia IL 62206 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STITT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS servo connector Turn transmitter select op tion will notice will hor izontal scale drawn computer screen calibrated milliseconds moving pointer follows motion transmitter stick see Figure #7 prefer digital read-out pulse length theres also numeric read out measuring incoming pulse length nearest microsecond option serves two purposes can used measure end points stick travel also can used see well transmit ter sticks return neutral after theyve released Let stick snap back neutral take reading slowly return stick neutral see get same reading Move stick opposite direction same good set sticks will typi cally return within few microseconds same neutral setting time either direction measurement solved problem originally thought servo linkage problem systems plane would stay trim problem finally found sticky stick transmitter didnt al ways return same spot after re leased word cautionif select Op tion #7 have receiver connected computer have receiver connected no transmitter running computer will appear lock up nor mal Whats happening computer waiting pulse come User Port get out locked-up mode hold down Run/Stop key tap Re store keys Option #8 Slew Servo allows slowly move servo through its range using arrow keys lower right side keyboard change servo output arm position moving output arm position using option given read-out near est microsecond pulse length servo receiving option can used check servo linearity have large pointer con nected servo output arm protrac tor other means accurately determin ing pointer position could plot curve pulse length horizontal axis servo rotation vertical axis servo truly linear curve plot will turn out perfectly straight line Figure #1 have about hours work $10 can build transmitter checker automated servo testing setup using handful parts inex pensive home computer dont hap pen have Commodore C-64 computer should someone within club does computerized radio/servo checker could make interesting group project something club could make available service during meet ing rainy weekend give mem bers means checking RC systems hope find useful tool Parts List 1 ea Aileron Connector match radio sys tem 1 ea PC Card Edge Connector match Com modore C64* IC Electromcs part #41-804 #41-816 Amphenol part #225-2-12-2-4-1-01 Cinch part #251-12-30-160 1 ea Experimenters Dual IC Board Radio Shack catalog #276-159 1 ea 2N3638 MPS2907 other PNP silicon general purpose small signal transistor Radio Shack catalog #276-2023 1 ea 4700 Ohm A-watt resistor Radio Shack catalog #271-1330 1 ca 22000 Ohm A-watt resistor Radio Shack Catalog #271-1339 Solder wire miscellaneous small hand tools *The cost PC card edge connector lo cal electronics dealer approximately $375 Its also listed part number 12/245E Jameco Electronics catalog costs $149 can reach Jameco Electronics 415 592-8097 write 1355 Shoreway Rd Belmont CA 94002 Janieco has $2000 minimum order may want get few friends together prepare bulk purchase Jameco also requires 5% handling fee $100 minimum Call Ja meco cant find connector locally have handful connectors Ill pro vide $500 first-come basis until supply runs out Please include pre-addressed stamped envelope orders case check has returned software project available Commodore diskette au thor CompuServe No hard copy printout available diskette can obtained sending $500 check money order cover cost disk mailer postage Bernard L Stuecker 2433 Carey Ln Vienna VA 22180 CompuServe subscribers can GO MOD ELNET find program software dowaloading Library 11 com mand BRO KEYSERVO can get CompuServe subscription information calling CompuServe 800 848-8199 AMA member would like free CompuServe subscription kit write Doug Pratt AMA HQ 1810 Samuel Morse Dr Reston VA 22090 ModelNet AMAs computer bulletin board service need information about project please sure include pre addressed stamped envelope query address above RC Soaring/Blakeslee Continued page 43 planes DG-100/428/132/229 DG-200 Acroracer/3 75/[ 106/ 128]/293 DG-200/ 428/119/257 DG-l00/428/143/250 DG 202/500/[139/16 11/216 first DG-100 now 11 years old wings DG-200 conventional con struction 2mm balsa sheeting steel blade joiners others have blue foam cores covered fiberglass obechi made using vacuum-bag technique DG-202 50 142 Model Aviation OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 E ADD $100 auinrn IAIITLJIId 2A UfI R5 Fox 1988 Schneurle SPECIFICATIONS BORE650 STROKE600 DISPLACEMENT199 WEIGHT8 oz RPM 8-4 prop17000 FUEL CONSUMPTION4 az/mm Recent Fox design gives engine performance punch exotic racing motors have engine docile nature has hot restart capability lacking ABC motors Order# StyleCost 12000 Fox 19BBCL$5995 22000 Fox 19BB RC lw/muffler $7995 Fox 25 SPECIFICATIONS BORE680 STROKE680 DISPLACEMENT25 RPM 9-4 prop12000 WEIGHT6 oz FUEL CONSUMPTION4 02/mm Light Powerful Big 25 light 1 9s packs power some 29s superb performer Fox 25 has market long enough thoroughly tried tested Its American made features MKX-type carburetor Order#Style 12500Fox 25 Bushing CL 22500Fox 25 Bushing RC lw/muffler Cost $4995 $6995 meters wingspan 167 ft certainly impres sive machine Can visualize throwing off side mountain Martin says about 202 flies very well due its long wing behaves somewhat sluggishly air still completely aerobatic can flown light breezes wing loading 25 oz/sq ft DGs use Wortmann air foils similar used full-size gliders Contrary popular opinion 11 years back sections perform very well Scale Gliders have flown high wing loading higher speed yield good performance Competition Products foam wing cores guys talk around country agree best wing cores theyve seen come Ed Ber ton Competition Products Florida Ed cuts cores longer normal can sup ply full-size beds ones come cores use pressing wings dreams what Ed says about work ensure quality precision wing cores cut exclusive motor-operated foam-cutting machine Cores exceptionally smooth trailing edges straight sharp can cut size chord within reason taper Maximum wing panel length 72 would impossible stock airfoils chord sizes however stock one-piece E-2 14 Windsong wing cores have templates 31 Eppler air foils 15 Seligs Quabecks others order set custom wing cores simply send set root tip templates along panel length maximum length 72 taper desired prefer will make tem plates additional cost 'Competition Products manufactures two types foam wing products conventional cores new Full-Size construction saddles Con ventional standard cores have around years cut undersized allow wing sheeting usually a / removed top bottom airfoil core can 3/4 1 narrower width chord finished wing means apply adhesive press skins core trailing edge sticking out saddles up inch no support usual result wavy trailing edges Most airfoils used Sailplanes have very delicate trailing edges must kept straight sharp often undercambered main tain airfoils shape obtain perform ance designed profile Keeping 3/4 unsupported trailing edge straight maintaining airfoil very criticalbut always easy Competition Products has answer Full-Size construction saddles Unlike conventional cores cut under sIze Full-Size construction saddles cut same size finished wing chord dimen sion same important airfoil ts exactly same finished wing wing core sheeted placed between Full-Size top bottom saddles finished trailing edge wing flush con struction saddles wings trailing edge fully supported along entire length pan el therefore kept perfectly straight assum ing building surface straight BR Full-Size construction saddles integrity airfoil maintained 100% Full-Size construction saddles must used matching set conventional cores cores come Full-Size saddles just along ridethey used thing BR Full-Size saddles used suspected forces insignfl cant spiral propwash pushing rudder overriding force play sed little test Take North PacJic type rubber model Assemble andfly willfly left turn circles Now cement stab CA extend rudder slotfrom top bottom Put rudder facing down will fly right turn circles Replace rudder longer parallel sheet can slide up down will able find position top forces bottom forces balanced model will fly straight Conclusion orities just plain wrong second popular belief just isnt Reducing crankcase volume 2 cycle model airplane motor will improve its power observations didnt jibe theory devised test fitted unported cylinder piston rear cover could pull piston out motor running thus varying crankcase volum& Result very slight increase RPM crankcase volume increased didnt expect test repeated several other Fox motors le brand Xmotors case maximum RRM achieved somewhat greater case volume stock Conclusion authorities hopping up motor just plain wrong third popularfallacy certain imported motors best can buy simple test can run yourself Buy Fox 40 Standard slightly costly 0540 EP Check both ease starting power idle throttle response Need tell results bock-up test buy Fox 50 its expensive imported counterpart Perform same tests Condusion orities tell buy imported motor just plain wrong Happy Flying 3JA Manufacturing Company 5305 Toweon Avenue Fort Smith AR 72901 Phone 501 848-1656 144 Model Aviation everything told example often told motor torque gyroscopic action causes aircraft want turn left power applied FOX MANUFACTuRING CO 5305 Towson Avenue Fort Smith Arkansas 72901 501 646-1656 5 WE ARE SHOOTING DOWN 4w4 HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only 3D BALSA TRIANGLES 36 1414 25 3838 30 1212 35 3434 45 1~1 55 3116 3718BALSA PLANKS36 452411 51612154 612013200 3014280 31241 23275 261124350 3022225 484423325 565524435 662833495 753734588 8446 13955TAPERED SHEETS36 70142 3143 238 2 68 78383 98 65123120 90 BALSA SHEETS 36 48 1162 33 3322 40 18 2 43 3162 49 14 2 56 1323 37 1203 37 1163 37 48 3323 44 58 18 3 54 71 3163 62 82 14 3 7395 5 163 85110 38 3 66124 123110155 34 3165191 1164 5876 3324 70 94 164 80106 3164 93122 44110134 38 4165225 12 4225261 MATCHED SHEETS 42 3324100 80108 3164120 144131 BALSA SliCKS 3645 1161409 1163810 1161214 332 1410 332 3812 332 1216 18 1808 181411 183812 181210 31631611 316 3817 316 1222 14 1416 143819 41221 143434 14 140 51651671 38 3827 381232 383442 3812 21236 123446 12158 566648 343467 BALSA HOT LINE Cell 1806 745 6394 10 em 6pm Ceefral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 LONE STAR EPOXY 900LSI695 598 lSrrls598 3Orn,598 LIGHT 4-6 LB WOOD36 1323 53 1203 53 1163 53 3323 63 183 77 3163 89 143104 383122 123158 343242 3335 1164 83 3324100 164115 3164133 144158 364236 124322 TRAILING EDGE 36 14132 5161 14 39 3611246 12270 INSTANTGLUE loOSca298 1 oo TIne 298 2oo Thick 550 20 15, 556 BASSWOOD48 316311626 3161438 3163838 31161/246 31163460 1141442 143849 143480 318 31860 3811270 318 31490 121290 1234100 BUNDLE DEALS 20-116336 699 201164361035 20332 336 865 16332436 965 1518336 735 1018 436 695 15316336 920 103164 36 835 1014336 655 1014436 938 10318336 870 5318436 655 51123036 548 512436 1088 10332448 885 518448 500 5316448 600 514448 645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 18 1i8 18 14 18 38 316 3116 114 14 114 318 14 12 318 38 3i8 1i2 1212 1234 1725 2026 2232 2638 3450 4055 4565 4968 6077 6688 7597 SPRUCE TRIANGLES 36 38 3847 121264 34 HARD MAPLE 1 4 38 3838 3812 3834 1 2 34 BIRCH DO WEL S 18 316 14 516 36 IS 40 45 50 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412620 13212445 11612455 1812485 S PLY BIRCH 3132 12 11812 316 12 114 12 38 12 12512 48 588 625 625 625 725 900 LITE PLY 48GROOVED LGMOUNTS 12 Inches 383418140 3834 16132140 1234l3116l45 186155 1812315 ________________________ _____________________ 146 250 1412495 cost s Handling Charge pay UPS Add $250 COD $300 extra PP APO FPO States accept VIsa Master Card personal checks COO 63% lao 111 reuas US currency 0014 MrSirrrunr Wood Order 110 00 I~I1LU [6] i _______________ during sheeting/pressing process Washout can built both conventional cores Full-Size saddles thus assuring both wing panels will exactly same conventional cores Full-Size saddles cut 1 -lb-density white virgin foam Re ground material used Two-pound-density blue foam also available additional cost items shipped UPSno COD cannot shipped PO Box address Conven tional cores Full-Size saddles $45 per set plus UPS Multipanel wings $2250 per pan el plus UPS Custom templates $30 per pair info order sheet send SASE Ed 921 Birdie Way Apollo Beach FL 33570 telephone 813 645-5171 Next month well have scoop Ed skins wings using epoxy resin adhesive ATRCS follow-up August 1988 column re posied ATRCS microprocessor conversion Airtronics Module 75P transmitter may recall amazing system designed being sold byControl Systems Laborator ies Silicon Valley CA As good control system sounded paper theres old saying about proof pudding o reason extremely happy receive re port Satlplaner ATRCS actually worked him following letter Asher Carmichael Daphne AL Asher professional wood worker dealing things like fine furniture clock cases Readers Jim Grays RIC Soaring Digest will recognize Ashers name because has writing very informative entertain ing series articles Sailplane construction techniques Ashers ATRCS report old saying among cabinetmakers mark master craftsman whether make mistakes correct continue make enough unreconcilable gaffes profession possibly considered jour neyman seem transfer same ten dency modeling interests times mistake will present itself seems no way out Occasionally an swer found salvages situation may pearl great price Such case Windsong Having decided fly Windsong pri mary contest ship set about finding out could about plane compatible radio sys tems Some people said build plane equip just like Dodgson says Others said No will missing something dont mix functions electronically Well being tinkerer heart hav ing enough experience know otherwise went out bought Airtronics Module 75P elec tronically control plane dreams read letters put out 75P fliers seemed way go After push switch herer pull lever trimmer could achieve functions Dodgson recommends plumbing Let tell after first few flights just knew made right decision plane performed flawlessly could change throws compensations mixing values etc twist pot reveled upmanship few months placed very first contest Other fliers beginning whisper Better watch Carmichaelhe has hot plane finally taking metal home So said myself Now time really start playing Continued page 149 fliS oia timer perfectly proportioned modeling Curtlss Robin 049 EngInes -channel RIC 4 Wlngspsn ElectrIC Power Optional 12295 511 e103 Very few lull scale aircra8 ideaily nailed model flight appealing old Carliss RoSin horn spruce linen age heaulilulty pmportioned ruhh8r electric glow engines Easy tan SolId trainerlike perlormence Flytine Models Catalog hOt phOne 1783127316683 INE MODELS INC PO Box 2136 Falrlax VirginIa 22031 LL5A December 1988 145 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa TWO NEW FLIGHT BOXES Completely assembled aud tinished 51440 USA Both lop quality wood conslraclion Two large drawers Unique drawer locks Small hoc $8500 plus shipping Large hoo5 12500 ptas shipping includes laeI cumparlmentbatteryypuwnr panel coerparlmenladlaslable tuselage cradles Money hack guarantee send 53 101 specs call 415 3637732 lease nressage Flights Fancy e coma de flag P0 80 1 La Plonda Ca 84820 4 19 4 # / ADULTS $300 CHILDREN 612 $100 w/adflt SENIOR CITIZENS $200 NEW PAVILION & EXPO HALL WESTERN WASHINGTON FAIRGROUNDS POYALLUP WASHINGTON FREE PARKING OC I1 FOR INFO CONTACT DON SWEASY 206 847-1279 PO BOX 73939 PUYALLUP WA 98373 OR BOB BEAN Evenings 206 848-0160 PACIFIC TIME) -4 RC Soaring/Blakeslee Continued page 145 switches levers have budding reputation uphold better unlock full per formance envelope airplane additional setup instructions gath ered through modeling press 7SP worked just greaton ground Push flap trim lever forward pull flap preset switch hack reflex Slide side pot forward spoilerons throttle stick down flaps Its quite easy youre flying 0K Im air Oh no bad sinkhave get Out Lets see flap trim forward left hand flap switch hack right reflex other way around Hey whos flying airplane Oh well Im really used yet Uh-oh already time land Flaps down throttle stick left hand spoiler ons up side pot left hand Oops Im land ing short Quick get everything hack neutral hand Youve got kidding Friends didnt take long realize stuck part limited capabili ties whether own didnt listen Dodgson could have control functions onor adjacent tothe sticks right fingertips continued fly Windsong during contest season benefit what con sider easy control functions did manage place few contests Still thought oc curred Wouldnt nice day answer dreams came mail description ATRCS though would cost seemed like logical way out already 75P re luctant give up some its features switching hack mechanical mixing Send transmitter along $300 California article said problems will solved Tom Mroz Eugene Engelau Control Systems Laboratories designed retrofit 75P called Advanced Technology Radio Control System ATRCS pronounced A-Tracks short Basically digital en coder replaces pots switches computer LCD readout six keypad tons understanding sys tem could everything wanted doand morewith two transmitter sticks three-pole switch Well couldnt wait price seemed high considering what plane already might pearl after gave let tell am glad system turns 75P absolute wonder now equivalent advanced radio world mixing presets available boggle mind easy set up fly well Someone finally given us Glider-guiders elec tronic capabilities manufacturers tantalizing us long system designed Sailplanes panic ularly multichannel ones encoder asks certain questions concerning functions de sired and/or available questions dis played LCD respond yes no set control surface movement use increment/decrement buttons Such things electronic centering travel vol ume mixing kinds presets easily obtained seven templates com puter correspond control con figuration likely encounter F3B flying wings Just pull up LCD away gosetting things up liking can program store setups four different planes same plane dif ferent settings transmitter convenient switch added above flap stick ena bles change another compatible setup during flight real advantage wish have plane programmed different condi tions tasks Flip switch fly can add drop out mixing change con trol surface travel As example have four independent servos flaps ailerons could switch flight between flape rons standard aileron/flaps configuration two functions appeal Windsong spoileron/crow threeposition trailing edge presets functions re quire have independent aileron servos thats small price pay benefit Spoilerons begin actuating flap-stick position choose position flap stick appropriate location enter en coder memory pressing two buttons As lower flaps both ailerons will start rising gether pass threshold position what meant spoilerons ailerons go up act like spoilers Crow means flaps down ailerons upthe effective means glidepath control BR yes can pro gram reverse differential spoilerons along elevator compensation dont like spoilerons time can drop out deleting alternate setup ac tuate setup flight flick alter nate switch three-position trailing edge presets lo cated three-pole switch top trans mitter Push switch forward trailing edge launch modeflaps down say 200 ailerons down 100 combination Center switch neutral cruise setting Push switch back entire trailDecember 1988 149 VINTAGE FORSTER ENGINES Using original casting dies lastest computer control led machi ery RJL producing highest quality lowest priced vintage engines avai able Both engines come complete original reprinted box literature Ignition version equipped clear plastic tank single speed Forster timer Both engines perfect SAM Old Time Stunt events Delivery Dec 88 glow Mar 89 ignition Satisfaction Guaranteedl Add $300 per engine shipping handling Calif residents add sales tax Glow plug spark plug coil condenser included RJL INDUSTRIES PO Box 5 Sierra Madre CA 91024 818 3590016 ing edge reflexed 60 high-speed flying An add-on programmable switch some transmit ters may give last two settings will give elevator compensation appropriate mode ATRCS does though Windsong doesnt need side pot 7SP can now programmed adjust camber along entire trailing edge might advantageous planes hav ing airfoils benefit slight camber changes light lift other trailing edge functions remain effect option mixing gains adjust ments available ATRCS havent really explored yet should pointed out transmitter will work flight packs other Airtronics same frequency course will also work new Airtronics Spectra PCM receivers well standard PPM/FM nice feature extra margin safety Also travel volume readouts percentages makes snap return control surfaces previous positions start playing planess trim settings features ATRCS/7SP system flies just like other proportional radio control sticks trim pots etc work nor mally would takes about two weeks including shipping time CSL work transmitter returned professionally printed instruction manual quite thorough understand able one-year warranty ATRCS components workmanship CSLs address 1361 Fallen Leaf Dr Milpitas CA 95035 tele phone 408 946-4142 Maybe some method madness know ATRCS has blessing Windsong system time has come have inclination mix control functions Windsong other full-function Sail plane electronically dont settle anything less ATRCS Hi-Performance Sailplanes Martin Bamerts ar ticle making wings molds sparked lot interest high-tech Sailplane wing construc tion methods first question people ask can buy materials Therefore glad hear Ron Wagner has just started up Hi-Performance Sailplanes Ron spe cializing materials needed molding vacuum-bagging wings expense out-of-sight minimum orders Rons rundown current offerings 1 HP Cell wing skins Hi-Performance wing skins new product designed replace balsawood skins enhance wing surface quality glass cloth used over blue foam material engineered replace 2mm Rohacel sightly denser 5 lb/cu ft Its thickness 060 15mm means less volume lower-weight wing sheet size 24 x 96 ideal larger Gliders eliminates splicing balsa sheets 2 Three types epoxies Type 1 thinviscosity laminating epoxy suitable bonding lightweight cloths wing skins Type 2 wing-skin-bonding adhesive works well HP Cell blue foam Type 3 recommended structural bonding adhesives first true epoxy adhesives market Epoxies bonding blue foam require certain properties have considered epoxy de velopment Available quart size plus hardener 3 Magnalite carbon laminates Type unidi rectional carbon fiber 007 x 1 x 72 Type 2 same except 014 thick Type 3 tapered 030 root 007 tip 72 long material can custom cut var ious lengths widths 4 Nomex HP honeycomb 3-lb cell-structure honeycomb 080 x 12 x 96 5 Fibergloss cloth 1 4-oz treated E Glass use HP Cell wing skins also stocks 2-oz treated E-Glass 6 Mylar sheets 014 thick laying over wet epoxy/glass during vacuum bagging Mini mum size 48 x 36 Hi-Performance Sailplanes address 17902 NE 156th St Woodinville WA 98072 tele phone 206 487-1721 suggest sending SASE Ron requesting latest price list mention ing exactly what application can prob ably assist getting started path higher-tech higher-performance Sailplanes NSS update Cliff Oliver Secretary/Treasurer Membership up 15% time last year Interest host clubs sponsoring Soar-In competition also up year thanks ef forts Marshall Long anyone interested hosting Soar-In next year start planning now contacting Marshall 824 Garden Meadow Universal City TX 78148 telephone 512 6593337 New year bimonthly publication Sailplane columns being written exclusively F3B Don Edberg Cross-Country Miles Moran fellows have years experience disci plines passing along us lot great formation prospective NSS Handbook has put hold time being need find mat agreeable Everyone involved great ideas opinions time feel handbook ready put place anyone would like free copy Sailplane includes membership application NSS drop line 8151 Broadway San Antonio TX 78209 give call 512 821-6299 As say cooler commercial Thank support League Silent Flight news Sailplaners have achieved Level V account about 1 % total LSF membership 6100 since list now boasts 62 names new Level V members LSF Numbers date achievement No 57Dennis Chall #38338/8/87 No 58Guy Dickes #336010/13/87 No 59Bob McGowan #228610/24/87 No 60Bob Sowder #379511/7/87 No 61Brian Agnew #314012/16/87 No 62Douglas Barry #16444/30/88 Congratulations guys July issue LSF Shortlines went out about 1200 members didnt get want keep up LSF happenings drop postcard name address LSF PO Box 647 Mundelin IL 60060 New monthly magazineSlope Soaring News Lovers Soaring slopes will glad know new journal devoted solely Slope news Slope Soaring News being pub lished out Signal Hill CA Charlie Morey Chuck Korolden Marcie Berriz what Charlie has say about new venture Heres first issue Slope Soaring News #1 see deals RC Slope Soar ing specifically its practiced California say California please dont think snubbing other fliers across US Its just tiny new publication volunteer staff three dont pretend represent Slope Soaring national level wel come contributions readers across US would delighted print interesting 150 Model Aviation Elm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 EAJGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL Now SEE YOUR ORDER NO NITRO CASE Synthetic/CastorBlends 31300055%Byro-Ji 31300065%Premiu 31300088%Premiu 313001010%Byro-Jet 313001110%Premiun 313001210%4 Cycle 313001615%Premium 313001715%4Cyc1eS 313002020%Byro-Jet S 3 13002525%Premium C 313003535%Premium Co 313004545%Premium Co Straight Synthetic 21200055%Byro-Jet Strs 21200065%Premium 212001010%Byro-Jet 212001110%Premium 01515%Premium 5 212002020%Byro-Jet aighi 212002525%Premium ompel 212003535%Premium Compel 2 12004545%Premium Compel Minimum Order Quantity--i Case Byron Originals Inc ACTORY PRICE PER GAL CASE OF 4 1-4 CASES 5 CASES & UP $ 800S 750 800750 860810 900850 900850 900850 10751015 10751015 12501175 1335 1650 1965 7 info anywhere world hope wider recognition will come time now hopelessly local Californians course thats bad innovative ingenious Gliders flying buddies bring slopes weekend newsworthy Slope Soaring News will bring new con cepts forum can share knowledge SSNs first issue lots interesting stuff 16 pages full-size 8 V2 x 11 very well writ ten has photos professionally printed years subscription $1595 Make check Out Charlie Morey send SSN 2601 E 19th St #29 Signal Hill CA 90804 think youll like F3B news As write Team Selection Fi nals coming up two weeks September 1718 Los Angeles course time read contest will have over six weeks ago cant tell made Team until next month latest news about winches ClAM president rescinded new restricted power winch rules adopted April meeting Paris evidently because internal motor bat tery resistance difficult measure first thought wait end means action has stirred up some very strong protest action AMA F3B Team Selec tion Committee Chainnan Don Edberg ClAM F3B Subcommittee Chairman John C Grigg well recommendations AMA Executive Director/CIAJvI Secretary John Worth As date publication issue Model Avi ation situation has resolved F3B program participants Contributing Editor ron Blakeslee will informed AMA HQ staff members further developments RMcM 1988 Team Selection finalists 23 number come four areas around country northern southern California Colorado Illinois finalists Northern CaliforniaBrian Chan Seth Daw son Gene Engelau Rich Spicer Southern CaliforniaMike Bame Don Edberg Gary Ittner Larry Jolly Daryl Perkins Steve Rae Rick Schrameck Joe Wurts ColoradoScott Dukes Bob Edson Mike Hickman Lenny Keer Randy Reynolds Jack Sasson John Wyss IllinoisRich Burnoski Wayne Fredette Jack Hiner Jim McCarthy best luck RC Old-Timers/Mathews Continued page 44 Loreli song Build sometime As can see three-view drawing answering song can challenging model easily built Old-Timer Perhaps complexity explains Barney Snyders much simplified Spook mentioned last column admitted rip-off Mystery Man Ill get suggested modifications rework design since figure anyone capable building wing bit com petent am would suggest however using rule thumb 250 sq wing area u engine displacement choos ing power plant overpower beautiful airplane screaming rate climb such would pure sacrilege opinion Mystery Man full-size plan available No 3A7 Old Time Plan Service 253 No 4th St PO Box 90310 San Jose CA 95109Joe Weathers Aeroneers Joe Weathers founding member San Diego Aero neers 1935 remained active member un til death 49 years later nominated AMA Hall Fame club particu larly through efforts Jim Alaback ducted August 1988 Jim has able obtain vast collection Joes materials has now cataloged re stored drawings photos preserva tion San Diego Aerospace Museum Joes family friends have helpful Jims efforts inasmuch sensed impor tance preserving material future Alaback has arranged Joes unpub lished designs mostly drawn shelf paper traced onto vellum reproducible copies have provided AMA Museum Old Time Plan Service also making copy negatives Joes original photos well newspaper clippings etc total documented design list has now ex ceeded 100 published unpublished planes Among drawings three-view Tubby see column October 1980 annotations indicate Weathers developed model part design proposal fullsized aircraft Obviously nothing came wouldnt its esthetic appeal have vastly greater Aeronca C3 does resemble Aeroneers publishes newsletter best can subscribe $750/year writing Jim Alaback 16634 Diaz Dr San Diego CA 92128 History its artifacts brief overContinued page 154 December 1988 151 BYRONPerformance Blended Fuels ORIGINALSINcF Higher Smoother Running Slut erior Lubrication ualled Rust Protection TENTLY BLENDED specific use 1oesnt stock Byron Originals Fuels order direct E FREE FREIGHT Overseas call shipping quote RETAIL PER GAL $1095 1095 1195 95 5 3310
Edition: Model Aviation - 1988/12
Page Numbers: 42, 43, 142, 144, 145, 149, 150, 151
NEW MULTIPLEX RADIO time read Bob Boomer Beemer R/C West should have FCC approval begin selling new Multiplex Profi MC 3030 nine-channel ra dio radio made Germany transmit ter new top-of-the-line set can thought being third generation RC microcom puter technology follows Multiplexs Profi 2000 1980 Royal MC 1984 Unlike Royal MC transmitter Profi MC 3030 does use removable soft modules program software stored within its integral microcomputer Multiplex calls its software BOSS German Benutzer Orientierte Sender Sprache English means User Oriented Transmitter Language four-line 64-position liquid crystal display communicates user/programmer Geiman Bob will have complete instructions translations explain what transmitter saying Actually programing very simple stall everything airplanereceiver bat tery servosand tell transmit ter name plane setting up will store setups up 15 different planes successively call up 17 fixed concepts templates use standard modeling language like crow/butterfly flaper elevator compensation etc Integral Programmer interconnects superimpos es functions necessary BOSS talks display input instructions using eight keys under plate front transmitter final step set direction servos adjust lengths servo travel adjust mixing ratios between servos Profi MC 3030 transmitter has other features Some ones like six-cell Martin Bamerts fleet scratch-built giant DG Scale Gliders yard home Switzerland Wingspans range 375 50 meters 42 Model Aviation Radio Confrol Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Martin Bamert Speedo 87 Model uses wing-twist roll control designed fun flying mountain slopes would good Racer AMA folks would happier sleek design nose little less pointy Catalog photo new Multiplex Prof i MC 3030 transmitter has bells whis tles Multiplex radios available Beemer R/C West Address column 1 700-mAh battery pack providing nine hours operation built-in battery monitor beeps warn low voltage digital voltage display PCM PPM encoding auto matic backup security memory save set tings mixing arrangements program segments being changed short set corporates much state-of-the-art design youre going find available today Bob cant quote prices until FCC approval obtained give general idea said 3030 would bit Royal MC Expert set much less Profi 2000 replaces interested formation lets hope price list Id sug gest sending large SASE Bob requesting same address Beemer R/C West 7725 E Redfield Road Suite 102 Scottsdale AZ 85260 telephone 602 483-9577 closing clubmate electronics advi sor Kurt Rosner pointed out important dis tinction about radios Namely two parts radio bells whistles transmitter actual radio link between transmitter receiver sophisticated computerized mixing isnt much good plane hit interference What get Multiplex radio system proven work very well 10-kHz frequency-spacing environ ment used Europe years Dont get 1991 planned 20-kHz fre quency spacing US commercial us ers paging systems data transmission etc will broadcasting more heavily right tween frequencies So really must have l0-kHz selectivity receiverwhich Multiplex gives Martin Bamert September 1988 column Martins article make molded wings Sailplanes Feedback has very positive Im happy able show Martins work first love big Scale ships shown two photos taken parents lawn Bern Switzerland Grosseglers giant Glid ers flown high slopes Swiss Alps Since Martin moved temporarily States build something portable answer problem Speedo 87 described September specs Speedo 87 reveal should great F3F Slope Rac ing plane wingspan 945 elevator span 204 fuselage length 518 weight 759 oz wing area 470 sq ft wing loading 1615 oz/sq ft wing airfoil RG 12A-18/90 stab air foil NACA 0006 Martins big birds 135-scale models DG sailplanes made Glaser-Dirks Flugzeubau Germany fuselages 20 meters long Specifications follow given order plane name wingspan meters weight lb wing loading oz/sq ft back front Continued page 142 7f4iVGMFTigerskin4J WHAT DO YOU CALL THE BEST SHEETING MATERIAL FOR FOAM WING CORES Wing Mfg pioneered foam core wing construction early 60s have used everything tangowood 1202 stainless steel sheeting last few years have using pressure laminates evolved R & 0 work Uncle Sam Tigerskins pre-finish high density posterboard material clear laminated plastic film top simply apply contact cement such Styro-Stick adhesive cores end sheeting press sheeting onto cores material pliable can easily wrap around leading edges Tigerskins CHECK THESE FEATURES Superior strength weight ratio Superior bond capability foam 001 per sq temperature stability Smooth high gloss finish Superior resistance nitro fuel Superior resistance weather Easy apply Low low cost 01/64 x 23 x 35 size Comes following colors Waco Red Polar White Insignia Blue Sun Yellow $495 PER SHEET PkA~g7 8t5t ORDERING Send check money order required amount Add $395 shipping 1 6 sheets Add $749 shipping 7 12 sheets SEND TO Wing Mfg PO Box 33 Crystal Lake IL 60014 Illinois Residents add 6 1/20/s sales tax Super Styro-Stick wing skin adhesive $5OB 16 oz Can Item 4601 can does wing up 70 No extra shipping cost ordered Tigerskins See Tigrskins Chicago Model & Hobby Show Booth 1735 Aerospace Parks Means Business. Degrees Careers Men Women Degree Programs Aeronautical Administration Aerospace Engineering Aircraft Maintenance Engineering Aircraft Maintenance Management Airway Science Aviation Science/Professional Pilot Avionics Electrical Engineering Logistics Meteorology Transportation Travel Tourism Certificates Airframe Powerplant Technician Logistics Technology Write Call Admissions 618-337-7500 1-800-851-3048 1-800-851-7878 In Illinois Ii41j SEND $350 FOR CATALOG cityStateZip TelephoneSoc Security No Major December 1988 43 Competition Products foam wing cores availabale Full-Size saddles Top core L sits foam saddle cut Note trailing edges Right core R Full-Size saddle Extra chord saddle supports TE sheeting during laminating pro cess Theres info column Aerospace nations number employer Parks first aerospace education Pais College SAINT LOUIS UNWERSITY information complete mail Name Address HS Graduation Date Return Parks College Saint Louis University MACahokia IL 62206 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STITT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS servo connector Turn transmitter select op tion will notice will hor izontal scale drawn computer screen calibrated milliseconds moving pointer follows motion transmitter stick see Figure #7 prefer digital read-out pulse length theres also numeric read out measuring incoming pulse length nearest microsecond option serves two purposes can used measure end points stick travel also can used see well transmit ter sticks return neutral after theyve released Let stick snap back neutral take reading slowly return stick neutral see get same reading Move stick opposite direction same good set sticks will typi cally return within few microseconds same neutral setting time either direction measurement solved problem originally thought servo linkage problem systems plane would stay trim problem finally found sticky stick transmitter didnt al ways return same spot after re leased word cautionif select Op tion #7 have receiver connected computer have receiver connected no transmitter running computer will appear lock up nor mal Whats happening computer waiting pulse come User Port get out locked-up mode hold down Run/Stop key tap Re store keys Option #8 Slew Servo allows slowly move servo through its range using arrow keys lower right side keyboard change servo output arm position moving output arm position using option given read-out near est microsecond pulse length servo receiving option can used check servo linearity have large pointer con nected servo output arm protrac tor other means accurately determin ing pointer position could plot curve pulse length horizontal axis servo rotation vertical axis servo truly linear curve plot will turn out perfectly straight line Figure #1 have about hours work $10 can build transmitter checker automated servo testing setup using handful parts inex pensive home computer dont hap pen have Commodore C-64 computer should someone within club does computerized radio/servo checker could make interesting group project something club could make available service during meet ing rainy weekend give mem bers means checking RC systems hope find useful tool Parts List 1 ea Aileron Connector match radio sys tem 1 ea PC Card Edge Connector match Com modore C64* IC Electromcs part #41-804 #41-816 Amphenol part #225-2-12-2-4-1-01 Cinch part #251-12-30-160 1 ea Experimenters Dual IC Board Radio Shack catalog #276-159 1 ea 2N3638 MPS2907 other PNP silicon general purpose small signal transistor Radio Shack catalog #276-2023 1 ea 4700 Ohm A-watt resistor Radio Shack catalog #271-1330 1 ca 22000 Ohm A-watt resistor Radio Shack Catalog #271-1339 Solder wire miscellaneous small hand tools *The cost PC card edge connector lo cal electronics dealer approximately $375 Its also listed part number 12/245E Jameco Electronics catalog costs $149 can reach Jameco Electronics 415 592-8097 write 1355 Shoreway Rd Belmont CA 94002 Janieco has $2000 minimum order may want get few friends together prepare bulk purchase Jameco also requires 5% handling fee $100 minimum Call Ja meco cant find connector locally have handful connectors Ill pro vide $500 first-come basis until supply runs out Please include pre-addressed stamped envelope orders case check has returned software project available Commodore diskette au thor CompuServe No hard copy printout available diskette can obtained sending $500 check money order cover cost disk mailer postage Bernard L Stuecker 2433 Carey Ln Vienna VA 22180 CompuServe subscribers can GO MOD ELNET find program software dowaloading Library 11 com mand BRO KEYSERVO can get CompuServe subscription information calling CompuServe 800 848-8199 AMA member would like free CompuServe subscription kit write Doug Pratt AMA HQ 1810 Samuel Morse Dr Reston VA 22090 ModelNet AMAs computer bulletin board service need information about project please sure include pre addressed stamped envelope query address above RC Soaring/Blakeslee Continued page 43 planes DG-100/428/132/229 DG-200 Acroracer/3 75/[ 106/ 128]/293 DG-200/ 428/119/257 DG-l00/428/143/250 DG 202/500/[139/16 11/216 first DG-100 now 11 years old wings DG-200 conventional con struction 2mm balsa sheeting steel blade joiners others have blue foam cores covered fiberglass obechi made using vacuum-bag technique DG-202 50 142 Model Aviation OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 E ADD $100 auinrn IAIITLJIId 2A UfI R5 Fox 1988 Schneurle SPECIFICATIONS BORE650 STROKE600 DISPLACEMENT199 WEIGHT8 oz RPM 8-4 prop17000 FUEL CONSUMPTION4 az/mm Recent Fox design gives engine performance punch exotic racing motors have engine docile nature has hot restart capability lacking ABC motors Order# StyleCost 12000 Fox 19BBCL$5995 22000 Fox 19BB RC lw/muffler $7995 Fox 25 SPECIFICATIONS BORE680 STROKE680 DISPLACEMENT25 RPM 9-4 prop12000 WEIGHT6 oz FUEL CONSUMPTION4 02/mm Light Powerful Big 25 light 1 9s packs power some 29s superb performer Fox 25 has market long enough thoroughly tried tested Its American made features MKX-type carburetor Order#Style 12500Fox 25 Bushing CL 22500Fox 25 Bushing RC lw/muffler Cost $4995 $6995 meters wingspan 167 ft certainly impres sive machine Can visualize throwing off side mountain Martin says about 202 flies very well due its long wing behaves somewhat sluggishly air still completely aerobatic can flown light breezes wing loading 25 oz/sq ft DGs use Wortmann air foils similar used full-size gliders Contrary popular opinion 11 years back sections perform very well Scale Gliders have flown high wing loading higher speed yield good performance Competition Products foam wing cores guys talk around country agree best wing cores theyve seen come Ed Ber ton Competition Products Florida Ed cuts cores longer normal can sup ply full-size beds ones come cores use pressing wings dreams what Ed says about work ensure quality precision wing cores cut exclusive motor-operated foam-cutting machine Cores exceptionally smooth trailing edges straight sharp can cut size chord within reason taper Maximum wing panel length 72 would impossible stock airfoils chord sizes however stock one-piece E-2 14 Windsong wing cores have templates 31 Eppler air foils 15 Seligs Quabecks others order set custom wing cores simply send set root tip templates along panel length maximum length 72 taper desired prefer will make tem plates additional cost 'Competition Products manufactures two types foam wing products conventional cores new Full-Size construction saddles Con ventional standard cores have around years cut undersized allow wing sheeting usually a / removed top bottom airfoil core can 3/4 1 narrower width chord finished wing means apply adhesive press skins core trailing edge sticking out saddles up inch no support usual result wavy trailing edges Most airfoils used Sailplanes have very delicate trailing edges must kept straight sharp often undercambered main tain airfoils shape obtain perform ance designed profile Keeping 3/4 unsupported trailing edge straight maintaining airfoil very criticalbut always easy Competition Products has answer Full-Size construction saddles Unlike conventional cores cut under sIze Full-Size construction saddles cut same size finished wing chord dimen sion same important airfoil ts exactly same finished wing wing core sheeted placed between Full-Size top bottom saddles finished trailing edge wing flush con struction saddles wings trailing edge fully supported along entire length pan el therefore kept perfectly straight assum ing building surface straight BR Full-Size construction saddles integrity airfoil maintained 100% Full-Size construction saddles must used matching set conventional cores cores come Full-Size saddles just along ridethey used thing BR Full-Size saddles used suspected forces insignfl cant spiral propwash pushing rudder overriding force play sed little test Take North PacJic type rubber model Assemble andfly willfly left turn circles Now cement stab CA extend rudder slotfrom top bottom Put rudder facing down will fly right turn circles Replace rudder longer parallel sheet can slide up down will able find position top forces bottom forces balanced model will fly straight Conclusion orities just plain wrong second popular belief just isnt Reducing crankcase volume 2 cycle model airplane motor will improve its power observations didnt jibe theory devised test fitted unported cylinder piston rear cover could pull piston out motor running thus varying crankcase volum& Result very slight increase RPM crankcase volume increased didnt expect test repeated several other Fox motors le brand Xmotors case maximum RRM achieved somewhat greater case volume stock Conclusion authorities hopping up motor just plain wrong third popularfallacy certain imported motors best can buy simple test can run yourself Buy Fox 40 Standard slightly costly 0540 EP Check both ease starting power idle throttle response Need tell results bock-up test buy Fox 50 its expensive imported counterpart Perform same tests Condusion orities tell buy imported motor just plain wrong Happy Flying 3JA Manufacturing Company 5305 Toweon Avenue Fort Smith AR 72901 Phone 501 848-1656 144 Model Aviation everything told example often told motor torque gyroscopic action causes aircraft want turn left power applied FOX MANUFACTuRING CO 5305 Towson Avenue Fort Smith Arkansas 72901 501 646-1656 5 WE ARE SHOOTING DOWN 4w4 HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only 3D BALSA TRIANGLES 36 1414 25 3838 30 1212 35 3434 45 1~1 55 3116 3718BALSA PLANKS36 452411 51612154 612013200 3014280 31241 23275 261124350 3022225 484423325 565524435 662833495 753734588 8446 13955TAPERED SHEETS36 70142 3143 238 2 68 78383 98 65123120 90 BALSA SHEETS 36 48 1162 33 3322 40 18 2 43 3162 49 14 2 56 1323 37 1203 37 1163 37 48 3323 44 58 18 3 54 71 3163 62 82 14 3 7395 5 163 85110 38 3 66124 123110155 34 3165191 1164 5876 3324 70 94 164 80106 3164 93122 44110134 38 4165225 12 4225261 MATCHED SHEETS 42 3324100 80108 3164120 144131 BALSA SliCKS 3645 1161409 1163810 1161214 332 1410 332 3812 332 1216 18 1808 181411 183812 181210 31631611 316 3817 316 1222 14 1416 143819 41221 143434 14 140 51651671 38 3827 381232 383442 3812 21236 123446 12158 566648 343467 BALSA HOT LINE Cell 1806 745 6394 10 em 6pm Ceefral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 LONE STAR EPOXY 900LSI695 598 lSrrls598 3Orn,598 LIGHT 4-6 LB WOOD36 1323 53 1203 53 1163 53 3323 63 183 77 3163 89 143104 383122 123158 343242 3335 1164 83 3324100 164115 3164133 144158 364236 124322 TRAILING EDGE 36 14132 5161 14 39 3611246 12270 INSTANTGLUE loOSca298 1 oo TIne 298 2oo Thick 550 20 15, 556 BASSWOOD48 316311626 3161438 3163838 31161/246 31163460 1141442 143849 143480 318 31860 3811270 318 31490 121290 1234100 BUNDLE DEALS 20-116336 699 201164361035 20332 336 865 16332436 965 1518336 735 1018 436 695 15316336 920 103164 36 835 1014336 655 1014436 938 10318336 870 5318436 655 51123036 548 512436 1088 10332448 885 518448 500 5316448 600 514448 645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 18 1i8 18 14 18 38 316 3116 114 14 114 318 14 12 318 38 3i8 1i2 1212 1234 1725 2026 2232 2638 3450 4055 4565 4968 6077 6688 7597 SPRUCE TRIANGLES 36 38 3847 121264 34 HARD MAPLE 1 4 38 3838 3812 3834 1 2 34 BIRCH DO WEL S 18 316 14 516 36 IS 40 45 50 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412620 13212445 11612455 1812485 S PLY BIRCH 3132 12 11812 316 12 114 12 38 12 12512 48 588 625 625 625 725 900 LITE PLY 48GROOVED LGMOUNTS 12 Inches 383418140 3834 16132140 1234l3116l45 186155 1812315 ________________________ _____________________ 146 250 1412495 cost s Handling Charge pay UPS Add $250 COD $300 extra PP APO FPO States accept VIsa Master Card personal checks COO 63% lao 111 reuas US currency 0014 MrSirrrunr Wood Order 110 00 I~I1LU [6] i _______________ during sheeting/pressing process Washout can built both conventional cores Full-Size saddles thus assuring both wing panels will exactly same conventional cores Full-Size saddles cut 1 -lb-density white virgin foam Re ground material used Two-pound-density blue foam also available additional cost items shipped UPSno COD cannot shipped PO Box address Conven tional cores Full-Size saddles $45 per set plus UPS Multipanel wings $2250 per pan el plus UPS Custom templates $30 per pair info order sheet send SASE Ed 921 Birdie Way Apollo Beach FL 33570 telephone 813 645-5171 Next month well have scoop Ed skins wings using epoxy resin adhesive ATRCS follow-up August 1988 column re posied ATRCS microprocessor conversion Airtronics Module 75P transmitter may recall amazing system designed being sold byControl Systems Laborator ies Silicon Valley CA As good control system sounded paper theres old saying about proof pudding o reason extremely happy receive re port Satlplaner ATRCS actually worked him following letter Asher Carmichael Daphne AL Asher professional wood worker dealing things like fine furniture clock cases Readers Jim Grays RIC Soaring Digest will recognize Ashers name because has writing very informative entertain ing series articles Sailplane construction techniques Ashers ATRCS report old saying among cabinetmakers mark master craftsman whether make mistakes correct continue make enough unreconcilable gaffes profession possibly considered jour neyman seem transfer same ten dency modeling interests times mistake will present itself seems no way out Occasionally an swer found salvages situation may pearl great price Such case Windsong Having decided fly Windsong pri mary contest ship set about finding out could about plane compatible radio sys tems Some people said build plane equip just like Dodgson says Others said No will missing something dont mix functions electronically Well being tinkerer heart hav ing enough experience know otherwise went out bought Airtronics Module 75P elec tronically control plane dreams read letters put out 75P fliers seemed way go After push switch herer pull lever trimmer could achieve functions Dodgson recommends plumbing Let tell after first few flights just knew made right decision plane performed flawlessly could change throws compensations mixing values etc twist pot reveled upmanship few months placed very first contest Other fliers beginning whisper Better watch Carmichaelhe has hot plane finally taking metal home So said myself Now time really start playing Continued page 149 fliS oia timer perfectly proportioned modeling Curtlss Robin 049 EngInes -channel RIC 4 Wlngspsn ElectrIC Power Optional 12295 511 e103 Very few lull scale aircra8 ideaily nailed model flight appealing old Carliss RoSin horn spruce linen age heaulilulty pmportioned ruhh8r electric glow engines Easy tan SolId trainerlike perlormence Flytine Models Catalog hOt phOne 1783127316683 INE MODELS INC PO Box 2136 Falrlax VirginIa 22031 LL5A December 1988 145 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa TWO NEW FLIGHT BOXES Completely assembled aud tinished 51440 USA Both lop quality wood conslraclion Two large drawers Unique drawer locks Small hoc $8500 plus shipping Large hoo5 12500 ptas shipping includes laeI cumparlmentbatteryypuwnr panel coerparlmenladlaslable tuselage cradles Money hack guarantee send 53 101 specs call 415 3637732 lease nressage Flights Fancy e coma de flag P0 80 1 La Plonda Ca 84820 4 19 4 # / ADULTS $300 CHILDREN 612 $100 w/adflt SENIOR CITIZENS $200 NEW PAVILION & EXPO HALL WESTERN WASHINGTON FAIRGROUNDS POYALLUP WASHINGTON FREE PARKING OC I1 FOR INFO CONTACT DON SWEASY 206 847-1279 PO BOX 73939 PUYALLUP WA 98373 OR BOB BEAN Evenings 206 848-0160 PACIFIC TIME) -4 RC Soaring/Blakeslee Continued page 145 switches levers have budding reputation uphold better unlock full per formance envelope airplane additional setup instructions gath ered through modeling press 7SP worked just greaton ground Push flap trim lever forward pull flap preset switch hack reflex Slide side pot forward spoilerons throttle stick down flaps Its quite easy youre flying 0K Im air Oh no bad sinkhave get Out Lets see flap trim forward left hand flap switch hack right reflex other way around Hey whos flying airplane Oh well Im really used yet Uh-oh already time land Flaps down throttle stick left hand spoiler ons up side pot left hand Oops Im land ing short Quick get everything hack neutral hand Youve got kidding Friends didnt take long realize stuck part limited capabili ties whether own didnt listen Dodgson could have control functions onor adjacent tothe sticks right fingertips continued fly Windsong during contest season benefit what con sider easy control functions did manage place few contests Still thought oc curred Wouldnt nice day answer dreams came mail description ATRCS though would cost seemed like logical way out already 75P re luctant give up some its features switching hack mechanical mixing Send transmitter along $300 California article said problems will solved Tom Mroz Eugene Engelau Control Systems Laboratories designed retrofit 75P called Advanced Technology Radio Control System ATRCS pronounced A-Tracks short Basically digital en coder replaces pots switches computer LCD readout six keypad tons understanding sys tem could everything wanted doand morewith two transmitter sticks three-pole switch Well couldnt wait price seemed high considering what plane already might pearl after gave let tell am glad system turns 75P absolute wonder now equivalent advanced radio world mixing presets available boggle mind easy set up fly well Someone finally given us Glider-guiders elec tronic capabilities manufacturers tantalizing us long system designed Sailplanes panic ularly multichannel ones encoder asks certain questions concerning functions de sired and/or available questions dis played LCD respond yes no set control surface movement use increment/decrement buttons Such things electronic centering travel vol ume mixing kinds presets easily obtained seven templates com puter correspond control con figuration likely encounter F3B flying wings Just pull up LCD away gosetting things up liking can program store setups four different planes same plane dif ferent settings transmitter convenient switch added above flap stick ena bles change another compatible setup during flight real advantage wish have plane programmed different condi tions tasks Flip switch fly can add drop out mixing change con trol surface travel As example have four independent servos flaps ailerons could switch flight between flape rons standard aileron/flaps configuration two functions appeal Windsong spoileron/crow threeposition trailing edge presets functions re quire have independent aileron servos thats small price pay benefit Spoilerons begin actuating flap-stick position choose position flap stick appropriate location enter en coder memory pressing two buttons As lower flaps both ailerons will start rising gether pass threshold position what meant spoilerons ailerons go up act like spoilers Crow means flaps down ailerons upthe effective means glidepath control BR yes can pro gram reverse differential spoilerons along elevator compensation dont like spoilerons time can drop out deleting alternate setup ac tuate setup flight flick alter nate switch three-position trailing edge presets lo cated three-pole switch top trans mitter Push switch forward trailing edge launch modeflaps down say 200 ailerons down 100 combination Center switch neutral cruise setting Push switch back entire trailDecember 1988 149 VINTAGE FORSTER ENGINES Using original casting dies lastest computer control led machi ery RJL producing highest quality lowest priced vintage engines avai able Both engines come complete original reprinted box literature Ignition version equipped clear plastic tank single speed Forster timer Both engines perfect SAM Old Time Stunt events Delivery Dec 88 glow Mar 89 ignition Satisfaction Guaranteedl Add $300 per engine shipping handling Calif residents add sales tax Glow plug spark plug coil condenser included RJL INDUSTRIES PO Box 5 Sierra Madre CA 91024 818 3590016 ing edge reflexed 60 high-speed flying An add-on programmable switch some transmit ters may give last two settings will give elevator compensation appropriate mode ATRCS does though Windsong doesnt need side pot 7SP can now programmed adjust camber along entire trailing edge might advantageous planes hav ing airfoils benefit slight camber changes light lift other trailing edge functions remain effect option mixing gains adjust ments available ATRCS havent really explored yet should pointed out transmitter will work flight packs other Airtronics same frequency course will also work new Airtronics Spectra PCM receivers well standard PPM/FM nice feature extra margin safety Also travel volume readouts percentages makes snap return control surfaces previous positions start playing planess trim settings features ATRCS/7SP system flies just like other proportional radio control sticks trim pots etc work nor mally would takes about two weeks including shipping time CSL work transmitter returned professionally printed instruction manual quite thorough understand able one-year warranty ATRCS components workmanship CSLs address 1361 Fallen Leaf Dr Milpitas CA 95035 tele phone 408 946-4142 Maybe some method madness know ATRCS has blessing Windsong system time has come have inclination mix control functions Windsong other full-function Sail plane electronically dont settle anything less ATRCS Hi-Performance Sailplanes Martin Bamerts ar ticle making wings molds sparked lot interest high-tech Sailplane wing construc tion methods first question people ask can buy materials Therefore glad hear Ron Wagner has just started up Hi-Performance Sailplanes Ron spe cializing materials needed molding vacuum-bagging wings expense out-of-sight minimum orders Rons rundown current offerings 1 HP Cell wing skins Hi-Performance wing skins new product designed replace balsawood skins enhance wing surface quality glass cloth used over blue foam material engineered replace 2mm Rohacel sightly denser 5 lb/cu ft Its thickness 060 15mm means less volume lower-weight wing sheet size 24 x 96 ideal larger Gliders eliminates splicing balsa sheets 2 Three types epoxies Type 1 thinviscosity laminating epoxy suitable bonding lightweight cloths wing skins Type 2 wing-skin-bonding adhesive works well HP Cell blue foam Type 3 recommended structural bonding adhesives first true epoxy adhesives market Epoxies bonding blue foam require certain properties have considered epoxy de velopment Available quart size plus hardener 3 Magnalite carbon laminates Type unidi rectional carbon fiber 007 x 1 x 72 Type 2 same except 014 thick Type 3 tapered 030 root 007 tip 72 long material can custom cut var ious lengths widths 4 Nomex HP honeycomb 3-lb cell-structure honeycomb 080 x 12 x 96 5 Fibergloss cloth 1 4-oz treated E Glass use HP Cell wing skins also stocks 2-oz treated E-Glass 6 Mylar sheets 014 thick laying over wet epoxy/glass during vacuum bagging Mini mum size 48 x 36 Hi-Performance Sailplanes address 17902 NE 156th St Woodinville WA 98072 tele phone 206 487-1721 suggest sending SASE Ron requesting latest price list mention ing exactly what application can prob ably assist getting started path higher-tech higher-performance Sailplanes NSS update Cliff Oliver Secretary/Treasurer Membership up 15% time last year Interest host clubs sponsoring Soar-In competition also up year thanks ef forts Marshall Long anyone interested hosting Soar-In next year start planning now contacting Marshall 824 Garden Meadow Universal City TX 78148 telephone 512 6593337 New year bimonthly publication Sailplane columns being written exclusively F3B Don Edberg Cross-Country Miles Moran fellows have years experience disci plines passing along us lot great formation prospective NSS Handbook has put hold time being need find mat agreeable Everyone involved great ideas opinions time feel handbook ready put place anyone would like free copy Sailplane includes membership application NSS drop line 8151 Broadway San Antonio TX 78209 give call 512 821-6299 As say cooler commercial Thank support League Silent Flight news Sailplaners have achieved Level V account about 1 % total LSF membership 6100 since list now boasts 62 names new Level V members LSF Numbers date achievement No 57Dennis Chall #38338/8/87 No 58Guy Dickes #336010/13/87 No 59Bob McGowan #228610/24/87 No 60Bob Sowder #379511/7/87 No 61Brian Agnew #314012/16/87 No 62Douglas Barry #16444/30/88 Congratulations guys July issue LSF Shortlines went out about 1200 members didnt get want keep up LSF happenings drop postcard name address LSF PO Box 647 Mundelin IL 60060 New monthly magazineSlope Soaring News Lovers Soaring slopes will glad know new journal devoted solely Slope news Slope Soaring News being pub lished out Signal Hill CA Charlie Morey Chuck Korolden Marcie Berriz what Charlie has say about new venture Heres first issue Slope Soaring News #1 see deals RC Slope Soar ing specifically its practiced California say California please dont think snubbing other fliers across US Its just tiny new publication volunteer staff three dont pretend represent Slope Soaring national level wel come contributions readers across US would delighted print interesting 150 Model Aviation Elm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 EAJGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL Now SEE YOUR ORDER NO NITRO CASE Synthetic/CastorBlends 31300055%Byro-Ji 31300065%Premiu 31300088%Premiu 313001010%Byro-Jet 313001110%Premiun 313001210%4 Cycle 313001615%Premium 313001715%4Cyc1eS 313002020%Byro-Jet S 3 13002525%Premium C 313003535%Premium Co 313004545%Premium Co Straight Synthetic 21200055%Byro-Jet Strs 21200065%Premium 212001010%Byro-Jet 212001110%Premium 01515%Premium 5 212002020%Byro-Jet aighi 212002525%Premium ompel 212003535%Premium Compel 2 12004545%Premium Compel Minimum Order Quantity--i Case Byron Originals Inc ACTORY PRICE PER GAL CASE OF 4 1-4 CASES 5 CASES & UP $ 800S 750 800750 860810 900850 900850 900850 10751015 10751015 12501175 1335 1650 1965 7 info anywhere world hope wider recognition will come time now hopelessly local Californians course thats bad innovative ingenious Gliders flying buddies bring slopes weekend newsworthy Slope Soaring News will bring new con cepts forum can share knowledge SSNs first issue lots interesting stuff 16 pages full-size 8 V2 x 11 very well writ ten has photos professionally printed years subscription $1595 Make check Out Charlie Morey send SSN 2601 E 19th St #29 Signal Hill CA 90804 think youll like F3B news As write Team Selection Fi nals coming up two weeks September 1718 Los Angeles course time read contest will have over six weeks ago cant tell made Team until next month latest news about winches ClAM president rescinded new restricted power winch rules adopted April meeting Paris evidently because internal motor bat tery resistance difficult measure first thought wait end means action has stirred up some very strong protest action AMA F3B Team Selec tion Committee Chainnan Don Edberg ClAM F3B Subcommittee Chairman John C Grigg well recommendations AMA Executive Director/CIAJvI Secretary John Worth As date publication issue Model Avi ation situation has resolved F3B program participants Contributing Editor ron Blakeslee will informed AMA HQ staff members further developments RMcM 1988 Team Selection finalists 23 number come four areas around country northern southern California Colorado Illinois finalists Northern CaliforniaBrian Chan Seth Daw son Gene Engelau Rich Spicer Southern CaliforniaMike Bame Don Edberg Gary Ittner Larry Jolly Daryl Perkins Steve Rae Rick Schrameck Joe Wurts ColoradoScott Dukes Bob Edson Mike Hickman Lenny Keer Randy Reynolds Jack Sasson John Wyss IllinoisRich Burnoski Wayne Fredette Jack Hiner Jim McCarthy best luck RC Old-Timers/Mathews Continued page 44 Loreli song Build sometime As can see three-view drawing answering song can challenging model easily built Old-Timer Perhaps complexity explains Barney Snyders much simplified Spook mentioned last column admitted rip-off Mystery Man Ill get suggested modifications rework design since figure anyone capable building wing bit com petent am would suggest however using rule thumb 250 sq wing area u engine displacement choos ing power plant overpower beautiful airplane screaming rate climb such would pure sacrilege opinion Mystery Man full-size plan available No 3A7 Old Time Plan Service 253 No 4th St PO Box 90310 San Jose CA 95109Joe Weathers Aeroneers Joe Weathers founding member San Diego Aero neers 1935 remained active member un til death 49 years later nominated AMA Hall Fame club particu larly through efforts Jim Alaback ducted August 1988 Jim has able obtain vast collection Joes materials has now cataloged re stored drawings photos preserva tion San Diego Aerospace Museum Joes family friends have helpful Jims efforts inasmuch sensed impor tance preserving material future Alaback has arranged Joes unpub lished designs mostly drawn shelf paper traced onto vellum reproducible copies have provided AMA Museum Old Time Plan Service also making copy negatives Joes original photos well newspaper clippings etc total documented design list has now ex ceeded 100 published unpublished planes Among drawings three-view Tubby see column October 1980 annotations indicate Weathers developed model part design proposal fullsized aircraft Obviously nothing came wouldnt its esthetic appeal have vastly greater Aeronca C3 does resemble Aeroneers publishes newsletter best can subscribe $750/year writing Jim Alaback 16634 Diaz Dr San Diego CA 92128 History its artifacts brief overContinued page 154 December 1988 151 BYRONPerformance Blended Fuels ORIGINALSINcF Higher Smoother Running Slut erior Lubrication ualled Rust Protection TENTLY BLENDED specific use 1oesnt stock Byron Originals Fuels order direct E FREE FREIGHT Overseas call shipping quote RETAIL PER GAL $1095 1095 1195 95 5 3310
Edition: Model Aviation - 1988/12
Page Numbers: 42, 43, 142, 144, 145, 149, 150, 151
NEW MULTIPLEX RADIO time read Bob Boomer Beemer R/C West should have FCC approval begin selling new Multiplex Profi MC 3030 nine-channel ra dio radio made Germany transmit ter new top-of-the-line set can thought being third generation RC microcom puter technology follows Multiplexs Profi 2000 1980 Royal MC 1984 Unlike Royal MC transmitter Profi MC 3030 does use removable soft modules program software stored within its integral microcomputer Multiplex calls its software BOSS German Benutzer Orientierte Sender Sprache English means User Oriented Transmitter Language four-line 64-position liquid crystal display communicates user/programmer Geiman Bob will have complete instructions translations explain what transmitter saying Actually programing very simple stall everything airplanereceiver bat tery servosand tell transmit ter name plane setting up will store setups up 15 different planes successively call up 17 fixed concepts templates use standard modeling language like crow/butterfly flaper elevator compensation etc Integral Programmer interconnects superimpos es functions necessary BOSS talks display input instructions using eight keys under plate front transmitter final step set direction servos adjust lengths servo travel adjust mixing ratios between servos Profi MC 3030 transmitter has other features Some ones like six-cell Martin Bamerts fleet scratch-built giant DG Scale Gliders yard home Switzerland Wingspans range 375 50 meters 42 Model Aviation Radio Confrol Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Martin Bamert Speedo 87 Model uses wing-twist roll control designed fun flying mountain slopes would good Racer AMA folks would happier sleek design nose little less pointy Catalog photo new Multiplex Prof i MC 3030 transmitter has bells whis tles Multiplex radios available Beemer R/C West Address column 1 700-mAh battery pack providing nine hours operation built-in battery monitor beeps warn low voltage digital voltage display PCM PPM encoding auto matic backup security memory save set tings mixing arrangements program segments being changed short set corporates much state-of-the-art design youre going find available today Bob cant quote prices until FCC approval obtained give general idea said 3030 would bit Royal MC Expert set much less Profi 2000 replaces interested formation lets hope price list Id sug gest sending large SASE Bob requesting same address Beemer R/C West 7725 E Redfield Road Suite 102 Scottsdale AZ 85260 telephone 602 483-9577 closing clubmate electronics advi sor Kurt Rosner pointed out important dis tinction about radios Namely two parts radio bells whistles transmitter actual radio link between transmitter receiver sophisticated computerized mixing isnt much good plane hit interference What get Multiplex radio system proven work very well 10-kHz frequency-spacing environ ment used Europe years Dont get 1991 planned 20-kHz fre quency spacing US commercial us ers paging systems data transmission etc will broadcasting more heavily right tween frequencies So really must have l0-kHz selectivity receiverwhich Multiplex gives Martin Bamert September 1988 column Martins article make molded wings Sailplanes Feedback has very positive Im happy able show Martins work first love big Scale ships shown two photos taken parents lawn Bern Switzerland Grosseglers giant Glid ers flown high slopes Swiss Alps Since Martin moved temporarily States build something portable answer problem Speedo 87 described September specs Speedo 87 reveal should great F3F Slope Rac ing plane wingspan 945 elevator span 204 fuselage length 518 weight 759 oz wing area 470 sq ft wing loading 1615 oz/sq ft wing airfoil RG 12A-18/90 stab air foil NACA 0006 Martins big birds 135-scale models DG sailplanes made Glaser-Dirks Flugzeubau Germany fuselages 20 meters long Specifications follow given order plane name wingspan meters weight lb wing loading oz/sq ft back front Continued page 142 7f4iVGMFTigerskin4J WHAT DO YOU CALL THE BEST SHEETING MATERIAL FOR FOAM WING CORES Wing Mfg pioneered foam core wing construction early 60s have used everything tangowood 1202 stainless steel sheeting last few years have using pressure laminates evolved R & 0 work Uncle Sam Tigerskins pre-finish high density posterboard material clear laminated plastic film top simply apply contact cement such Styro-Stick adhesive cores end sheeting press sheeting onto cores material pliable can easily wrap around leading edges Tigerskins CHECK THESE FEATURES Superior strength weight ratio Superior bond capability foam 001 per sq temperature stability Smooth high gloss finish Superior resistance nitro fuel Superior resistance weather Easy apply Low low cost 01/64 x 23 x 35 size Comes following colors Waco Red Polar White Insignia Blue Sun Yellow $495 PER SHEET PkA~g7 8t5t ORDERING Send check money order required amount Add $395 shipping 1 6 sheets Add $749 shipping 7 12 sheets SEND TO Wing Mfg PO Box 33 Crystal Lake IL 60014 Illinois Residents add 6 1/20/s sales tax Super Styro-Stick wing skin adhesive $5OB 16 oz Can Item 4601 can does wing up 70 No extra shipping cost ordered Tigerskins See Tigrskins Chicago Model & Hobby Show Booth 1735 Aerospace Parks Means Business. Degrees Careers Men Women Degree Programs Aeronautical Administration Aerospace Engineering Aircraft Maintenance Engineering Aircraft Maintenance Management Airway Science Aviation Science/Professional Pilot Avionics Electrical Engineering Logistics Meteorology Transportation Travel Tourism Certificates Airframe Powerplant Technician Logistics Technology Write Call Admissions 618-337-7500 1-800-851-3048 1-800-851-7878 In Illinois Ii41j SEND $350 FOR CATALOG cityStateZip TelephoneSoc Security No Major December 1988 43 Competition Products foam wing cores availabale Full-Size saddles Top core L sits foam saddle cut Note trailing edges Right core R Full-Size saddle Extra chord saddle supports TE sheeting during laminating pro cess Theres info column Aerospace nations number employer Parks first aerospace education Pais College SAINT LOUIS UNWERSITY information complete mail Name Address HS Graduation Date Return Parks College Saint Louis University MACahokia IL 62206 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STITT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS servo connector Turn transmitter select op tion will notice will hor izontal scale drawn computer screen calibrated milliseconds moving pointer follows motion transmitter stick see Figure #7 prefer digital read-out pulse length theres also numeric read out measuring incoming pulse length nearest microsecond option serves two purposes can used measure end points stick travel also can used see well transmit ter sticks return neutral after theyve released Let stick snap back neutral take reading slowly return stick neutral see get same reading Move stick opposite direction same good set sticks will typi cally return within few microseconds same neutral setting time either direction measurement solved problem originally thought servo linkage problem systems plane would stay trim problem finally found sticky stick transmitter didnt al ways return same spot after re leased word cautionif select Op tion #7 have receiver connected computer have receiver connected no transmitter running computer will appear lock up nor mal Whats happening computer waiting pulse come User Port get out locked-up mode hold down Run/Stop key tap Re store keys Option #8 Slew Servo allows slowly move servo through its range using arrow keys lower right side keyboard change servo output arm position moving output arm position using option given read-out near est microsecond pulse length servo receiving option can used check servo linearity have large pointer con nected servo output arm protrac tor other means accurately determin ing pointer position could plot curve pulse length horizontal axis servo rotation vertical axis servo truly linear curve plot will turn out perfectly straight line Figure #1 have about hours work $10 can build transmitter checker automated servo testing setup using handful parts inex pensive home computer dont hap pen have Commodore C-64 computer should someone within club does computerized radio/servo checker could make interesting group project something club could make available service during meet ing rainy weekend give mem bers means checking RC systems hope find useful tool Parts List 1 ea Aileron Connector match radio sys tem 1 ea PC Card Edge Connector match Com modore C64* IC Electromcs part #41-804 #41-816 Amphenol part #225-2-12-2-4-1-01 Cinch part #251-12-30-160 1 ea Experimenters Dual IC Board Radio Shack catalog #276-159 1 ea 2N3638 MPS2907 other PNP silicon general purpose small signal transistor Radio Shack catalog #276-2023 1 ea 4700 Ohm A-watt resistor Radio Shack catalog #271-1330 1 ca 22000 Ohm A-watt resistor Radio Shack Catalog #271-1339 Solder wire miscellaneous small hand tools *The cost PC card edge connector lo cal electronics dealer approximately $375 Its also listed part number 12/245E Jameco Electronics catalog costs $149 can reach Jameco Electronics 415 592-8097 write 1355 Shoreway Rd Belmont CA 94002 Janieco has $2000 minimum order may want get few friends together prepare bulk purchase Jameco also requires 5% handling fee $100 minimum Call Ja meco cant find connector locally have handful connectors Ill pro vide $500 first-come basis until supply runs out Please include pre-addressed stamped envelope orders case check has returned software project available Commodore diskette au thor CompuServe No hard copy printout available diskette can obtained sending $500 check money order cover cost disk mailer postage Bernard L Stuecker 2433 Carey Ln Vienna VA 22180 CompuServe subscribers can GO MOD ELNET find program software dowaloading Library 11 com mand BRO KEYSERVO can get CompuServe subscription information calling CompuServe 800 848-8199 AMA member would like free CompuServe subscription kit write Doug Pratt AMA HQ 1810 Samuel Morse Dr Reston VA 22090 ModelNet AMAs computer bulletin board service need information about project please sure include pre addressed stamped envelope query address above RC Soaring/Blakeslee Continued page 43 planes DG-100/428/132/229 DG-200 Acroracer/3 75/[ 106/ 128]/293 DG-200/ 428/119/257 DG-l00/428/143/250 DG 202/500/[139/16 11/216 first DG-100 now 11 years old wings DG-200 conventional con struction 2mm balsa sheeting steel blade joiners others have blue foam cores covered fiberglass obechi made using vacuum-bag technique DG-202 50 142 Model Aviation OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 E ADD $100 auinrn IAIITLJIId 2A UfI R5 Fox 1988 Schneurle SPECIFICATIONS BORE650 STROKE600 DISPLACEMENT199 WEIGHT8 oz RPM 8-4 prop17000 FUEL CONSUMPTION4 az/mm Recent Fox design gives engine performance punch exotic racing motors have engine docile nature has hot restart capability lacking ABC motors Order# StyleCost 12000 Fox 19BBCL$5995 22000 Fox 19BB RC lw/muffler $7995 Fox 25 SPECIFICATIONS BORE680 STROKE680 DISPLACEMENT25 RPM 9-4 prop12000 WEIGHT6 oz FUEL CONSUMPTION4 02/mm Light Powerful Big 25 light 1 9s packs power some 29s superb performer Fox 25 has market long enough thoroughly tried tested Its American made features MKX-type carburetor Order#Style 12500Fox 25 Bushing CL 22500Fox 25 Bushing RC lw/muffler Cost $4995 $6995 meters wingspan 167 ft certainly impres sive machine Can visualize throwing off side mountain Martin says about 202 flies very well due its long wing behaves somewhat sluggishly air still completely aerobatic can flown light breezes wing loading 25 oz/sq ft DGs use Wortmann air foils similar used full-size gliders Contrary popular opinion 11 years back sections perform very well Scale Gliders have flown high wing loading higher speed yield good performance Competition Products foam wing cores guys talk around country agree best wing cores theyve seen come Ed Ber ton Competition Products Florida Ed cuts cores longer normal can sup ply full-size beds ones come cores use pressing wings dreams what Ed says about work ensure quality precision wing cores cut exclusive motor-operated foam-cutting machine Cores exceptionally smooth trailing edges straight sharp can cut size chord within reason taper Maximum wing panel length 72 would impossible stock airfoils chord sizes however stock one-piece E-2 14 Windsong wing cores have templates 31 Eppler air foils 15 Seligs Quabecks others order set custom wing cores simply send set root tip templates along panel length maximum length 72 taper desired prefer will make tem plates additional cost 'Competition Products manufactures two types foam wing products conventional cores new Full-Size construction saddles Con ventional standard cores have around years cut undersized allow wing sheeting usually a / removed top bottom airfoil core can 3/4 1 narrower width chord finished wing means apply adhesive press skins core trailing edge sticking out saddles up inch no support usual result wavy trailing edges Most airfoils used Sailplanes have very delicate trailing edges must kept straight sharp often undercambered main tain airfoils shape obtain perform ance designed profile Keeping 3/4 unsupported trailing edge straight maintaining airfoil very criticalbut always easy Competition Products has answer Full-Size construction saddles Unlike conventional cores cut under sIze Full-Size construction saddles cut same size finished wing chord dimen sion same important airfoil ts exactly same finished wing wing core sheeted placed between Full-Size top bottom saddles finished trailing edge wing flush con struction saddles wings trailing edge fully supported along entire length pan el therefore kept perfectly straight assum ing building surface straight BR Full-Size construction saddles integrity airfoil maintained 100% Full-Size construction saddles must used matching set conventional cores cores come Full-Size saddles just along ridethey used thing BR Full-Size saddles used suspected forces insignfl cant spiral propwash pushing rudder overriding force play sed little test Take North PacJic type rubber model Assemble andfly willfly left turn circles Now cement stab CA extend rudder slotfrom top bottom Put rudder facing down will fly right turn circles Replace rudder longer parallel sheet can slide up down will able find position top forces bottom forces balanced model will fly straight Conclusion orities just plain wrong second popular belief just isnt Reducing crankcase volume 2 cycle model airplane motor will improve its power observations didnt jibe theory devised test fitted unported cylinder piston rear cover could pull piston out motor running thus varying crankcase volum& Result very slight increase RPM crankcase volume increased didnt expect test repeated several other Fox motors le brand Xmotors case maximum RRM achieved somewhat greater case volume stock Conclusion authorities hopping up motor just plain wrong third popularfallacy certain imported motors best can buy simple test can run yourself Buy Fox 40 Standard slightly costly 0540 EP Check both ease starting power idle throttle response Need tell results bock-up test buy Fox 50 its expensive imported counterpart Perform same tests Condusion orities tell buy imported motor just plain wrong Happy Flying 3JA Manufacturing Company 5305 Toweon Avenue Fort Smith AR 72901 Phone 501 848-1656 144 Model Aviation everything told example often told motor torque gyroscopic action causes aircraft want turn left power applied FOX MANUFACTuRING CO 5305 Towson Avenue Fort Smith Arkansas 72901 501 646-1656 5 WE ARE SHOOTING DOWN 4w4 HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only 3D BALSA TRIANGLES 36 1414 25 3838 30 1212 35 3434 45 1~1 55 3116 3718BALSA PLANKS36 452411 51612154 612013200 3014280 31241 23275 261124350 3022225 484423325 565524435 662833495 753734588 8446 13955TAPERED SHEETS36 70142 3143 238 2 68 78383 98 65123120 90 BALSA SHEETS 36 48 1162 33 3322 40 18 2 43 3162 49 14 2 56 1323 37 1203 37 1163 37 48 3323 44 58 18 3 54 71 3163 62 82 14 3 7395 5 163 85110 38 3 66124 123110155 34 3165191 1164 5876 3324 70 94 164 80106 3164 93122 44110134 38 4165225 12 4225261 MATCHED SHEETS 42 3324100 80108 3164120 144131 BALSA SliCKS 3645 1161409 1163810 1161214 332 1410 332 3812 332 1216 18 1808 181411 183812 181210 31631611 316 3817 316 1222 14 1416 143819 41221 143434 14 140 51651671 38 3827 381232 383442 3812 21236 123446 12158 566648 343467 BALSA HOT LINE Cell 1806 745 6394 10 em 6pm Ceefral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 LONE STAR EPOXY 900LSI695 598 lSrrls598 3Orn,598 LIGHT 4-6 LB WOOD36 1323 53 1203 53 1163 53 3323 63 183 77 3163 89 143104 383122 123158 343242 3335 1164 83 3324100 164115 3164133 144158 364236 124322 TRAILING EDGE 36 14132 5161 14 39 3611246 12270 INSTANTGLUE loOSca298 1 oo TIne 298 2oo Thick 550 20 15, 556 BASSWOOD48 316311626 3161438 3163838 31161/246 31163460 1141442 143849 143480 318 31860 3811270 318 31490 121290 1234100 BUNDLE DEALS 20-116336 699 201164361035 20332 336 865 16332436 965 1518336 735 1018 436 695 15316336 920 103164 36 835 1014336 655 1014436 938 10318336 870 5318436 655 51123036 548 512436 1088 10332448 885 518448 500 5316448 600 514448 645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 18 1i8 18 14 18 38 316 3116 114 14 114 318 14 12 318 38 3i8 1i2 1212 1234 1725 2026 2232 2638 3450 4055 4565 4968 6077 6688 7597 SPRUCE TRIANGLES 36 38 3847 121264 34 HARD MAPLE 1 4 38 3838 3812 3834 1 2 34 BIRCH DO WEL S 18 316 14 516 36 IS 40 45 50 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412620 13212445 11612455 1812485 S PLY BIRCH 3132 12 11812 316 12 114 12 38 12 12512 48 588 625 625 625 725 900 LITE PLY 48GROOVED LGMOUNTS 12 Inches 383418140 3834 16132140 1234l3116l45 186155 1812315 ________________________ _____________________ 146 250 1412495 cost s Handling Charge pay UPS Add $250 COD $300 extra PP APO FPO States accept VIsa Master Card personal checks COO 63% lao 111 reuas US currency 0014 MrSirrrunr Wood Order 110 00 I~I1LU [6] i _______________ during sheeting/pressing process Washout can built both conventional cores Full-Size saddles thus assuring both wing panels will exactly same conventional cores Full-Size saddles cut 1 -lb-density white virgin foam Re ground material used Two-pound-density blue foam also available additional cost items shipped UPSno COD cannot shipped PO Box address Conven tional cores Full-Size saddles $45 per set plus UPS Multipanel wings $2250 per pan el plus UPS Custom templates $30 per pair info order sheet send SASE Ed 921 Birdie Way Apollo Beach FL 33570 telephone 813 645-5171 Next month well have scoop Ed skins wings using epoxy resin adhesive ATRCS follow-up August 1988 column re posied ATRCS microprocessor conversion Airtronics Module 75P transmitter may recall amazing system designed being sold byControl Systems Laborator ies Silicon Valley CA As good control system sounded paper theres old saying about proof pudding o reason extremely happy receive re port Satlplaner ATRCS actually worked him following letter Asher Carmichael Daphne AL Asher professional wood worker dealing things like fine furniture clock cases Readers Jim Grays RIC Soaring Digest will recognize Ashers name because has writing very informative entertain ing series articles Sailplane construction techniques Ashers ATRCS report old saying among cabinetmakers mark master craftsman whether make mistakes correct continue make enough unreconcilable gaffes profession possibly considered jour neyman seem transfer same ten dency modeling interests times mistake will present itself seems no way out Occasionally an swer found salvages situation may pearl great price Such case Windsong Having decided fly Windsong pri mary contest ship set about finding out could about plane compatible radio sys tems Some people said build plane equip just like Dodgson says Others said No will missing something dont mix functions electronically Well being tinkerer heart hav ing enough experience know otherwise went out bought Airtronics Module 75P elec tronically control plane dreams read letters put out 75P fliers seemed way go After push switch herer pull lever trimmer could achieve functions Dodgson recommends plumbing Let tell after first few flights just knew made right decision plane performed flawlessly could change throws compensations mixing values etc twist pot reveled upmanship few months placed very first contest Other fliers beginning whisper Better watch Carmichaelhe has hot plane finally taking metal home So said myself Now time really start playing Continued page 149 fliS oia timer perfectly proportioned modeling Curtlss Robin 049 EngInes -channel RIC 4 Wlngspsn ElectrIC Power Optional 12295 511 e103 Very few lull scale aircra8 ideaily nailed model flight appealing old Carliss RoSin horn spruce linen age heaulilulty pmportioned ruhh8r electric glow engines Easy tan SolId trainerlike perlormence Flytine Models Catalog hOt phOne 1783127316683 INE MODELS INC PO Box 2136 Falrlax VirginIa 22031 LL5A December 1988 145 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa TWO NEW FLIGHT BOXES Completely assembled aud tinished 51440 USA Both lop quality wood conslraclion Two large drawers Unique drawer locks Small hoc $8500 plus shipping Large hoo5 12500 ptas shipping includes laeI cumparlmentbatteryypuwnr panel coerparlmenladlaslable tuselage cradles Money hack guarantee send 53 101 specs call 415 3637732 lease nressage Flights Fancy e coma de flag P0 80 1 La Plonda Ca 84820 4 19 4 # / ADULTS $300 CHILDREN 612 $100 w/adflt SENIOR CITIZENS $200 NEW PAVILION & EXPO HALL WESTERN WASHINGTON FAIRGROUNDS POYALLUP WASHINGTON FREE PARKING OC I1 FOR INFO CONTACT DON SWEASY 206 847-1279 PO BOX 73939 PUYALLUP WA 98373 OR BOB BEAN Evenings 206 848-0160 PACIFIC TIME) -4 RC Soaring/Blakeslee Continued page 145 switches levers have budding reputation uphold better unlock full per formance envelope airplane additional setup instructions gath ered through modeling press 7SP worked just greaton ground Push flap trim lever forward pull flap preset switch hack reflex Slide side pot forward spoilerons throttle stick down flaps Its quite easy youre flying 0K Im air Oh no bad sinkhave get Out Lets see flap trim forward left hand flap switch hack right reflex other way around Hey whos flying airplane Oh well Im really used yet Uh-oh already time land Flaps down throttle stick left hand spoiler ons up side pot left hand Oops Im land ing short Quick get everything hack neutral hand Youve got kidding Friends didnt take long realize stuck part limited capabili ties whether own didnt listen Dodgson could have control functions onor adjacent tothe sticks right fingertips continued fly Windsong during contest season benefit what con sider easy control functions did manage place few contests Still thought oc curred Wouldnt nice day answer dreams came mail description ATRCS though would cost seemed like logical way out already 75P re luctant give up some its features switching hack mechanical mixing Send transmitter along $300 California article said problems will solved Tom Mroz Eugene Engelau Control Systems Laboratories designed retrofit 75P called Advanced Technology Radio Control System ATRCS pronounced A-Tracks short Basically digital en coder replaces pots switches computer LCD readout six keypad tons understanding sys tem could everything wanted doand morewith two transmitter sticks three-pole switch Well couldnt wait price seemed high considering what plane already might pearl after gave let tell am glad system turns 75P absolute wonder now equivalent advanced radio world mixing presets available boggle mind easy set up fly well Someone finally given us Glider-guiders elec tronic capabilities manufacturers tantalizing us long system designed Sailplanes panic ularly multichannel ones encoder asks certain questions concerning functions de sired and/or available questions dis played LCD respond yes no set control surface movement use increment/decrement buttons Such things electronic centering travel vol ume mixing kinds presets easily obtained seven templates com puter correspond control con figuration likely encounter F3B flying wings Just pull up LCD away gosetting things up liking can program store setups four different planes same plane dif ferent settings transmitter convenient switch added above flap stick ena bles change another compatible setup during flight real advantage wish have plane programmed different condi tions tasks Flip switch fly can add drop out mixing change con trol surface travel As example have four independent servos flaps ailerons could switch flight between flape rons standard aileron/flaps configuration two functions appeal Windsong spoileron/crow threeposition trailing edge presets functions re quire have independent aileron servos thats small price pay benefit Spoilerons begin actuating flap-stick position choose position flap stick appropriate location enter en coder memory pressing two buttons As lower flaps both ailerons will start rising gether pass threshold position what meant spoilerons ailerons go up act like spoilers Crow means flaps down ailerons upthe effective means glidepath control BR yes can pro gram reverse differential spoilerons along elevator compensation dont like spoilerons time can drop out deleting alternate setup ac tuate setup flight flick alter nate switch three-position trailing edge presets lo cated three-pole switch top trans mitter Push switch forward trailing edge launch modeflaps down say 200 ailerons down 100 combination Center switch neutral cruise setting Push switch back entire trailDecember 1988 149 VINTAGE FORSTER ENGINES Using original casting dies lastest computer control led machi ery RJL producing highest quality lowest priced vintage engines avai able Both engines come complete original reprinted box literature Ignition version equipped clear plastic tank single speed Forster timer Both engines perfect SAM Old Time Stunt events Delivery Dec 88 glow Mar 89 ignition Satisfaction Guaranteedl Add $300 per engine shipping handling Calif residents add sales tax Glow plug spark plug coil condenser included RJL INDUSTRIES PO Box 5 Sierra Madre CA 91024 818 3590016 ing edge reflexed 60 high-speed flying An add-on programmable switch some transmit ters may give last two settings will give elevator compensation appropriate mode ATRCS does though Windsong doesnt need side pot 7SP can now programmed adjust camber along entire trailing edge might advantageous planes hav ing airfoils benefit slight camber changes light lift other trailing edge functions remain effect option mixing gains adjust ments available ATRCS havent really explored yet should pointed out transmitter will work flight packs other Airtronics same frequency course will also work new Airtronics Spectra PCM receivers well standard PPM/FM nice feature extra margin safety Also travel volume readouts percentages makes snap return control surfaces previous positions start playing planess trim settings features ATRCS/7SP system flies just like other proportional radio control sticks trim pots etc work nor mally would takes about two weeks including shipping time CSL work transmitter returned professionally printed instruction manual quite thorough understand able one-year warranty ATRCS components workmanship CSLs address 1361 Fallen Leaf Dr Milpitas CA 95035 tele phone 408 946-4142 Maybe some method madness know ATRCS has blessing Windsong system time has come have inclination mix control functions Windsong other full-function Sail plane electronically dont settle anything less ATRCS Hi-Performance Sailplanes Martin Bamerts ar ticle making wings molds sparked lot interest high-tech Sailplane wing construc tion methods first question people ask can buy materials Therefore glad hear Ron Wagner has just started up Hi-Performance Sailplanes Ron spe cializing materials needed molding vacuum-bagging wings expense out-of-sight minimum orders Rons rundown current offerings 1 HP Cell wing skins Hi-Performance wing skins new product designed replace balsawood skins enhance wing surface quality glass cloth used over blue foam material engineered replace 2mm Rohacel sightly denser 5 lb/cu ft Its thickness 060 15mm means less volume lower-weight wing sheet size 24 x 96 ideal larger Gliders eliminates splicing balsa sheets 2 Three types epoxies Type 1 thinviscosity laminating epoxy suitable bonding lightweight cloths wing skins Type 2 wing-skin-bonding adhesive works well HP Cell blue foam Type 3 recommended structural bonding adhesives first true epoxy adhesives market Epoxies bonding blue foam require certain properties have considered epoxy de velopment Available quart size plus hardener 3 Magnalite carbon laminates Type unidi rectional carbon fiber 007 x 1 x 72 Type 2 same except 014 thick Type 3 tapered 030 root 007 tip 72 long material can custom cut var ious lengths widths 4 Nomex HP honeycomb 3-lb cell-structure honeycomb 080 x 12 x 96 5 Fibergloss cloth 1 4-oz treated E Glass use HP Cell wing skins also stocks 2-oz treated E-Glass 6 Mylar sheets 014 thick laying over wet epoxy/glass during vacuum bagging Mini mum size 48 x 36 Hi-Performance Sailplanes address 17902 NE 156th St Woodinville WA 98072 tele phone 206 487-1721 suggest sending SASE Ron requesting latest price list mention ing exactly what application can prob ably assist getting started path higher-tech higher-performance Sailplanes NSS update Cliff Oliver Secretary/Treasurer Membership up 15% time last year Interest host clubs sponsoring Soar-In competition also up year thanks ef forts Marshall Long anyone interested hosting Soar-In next year start planning now contacting Marshall 824 Garden Meadow Universal City TX 78148 telephone 512 6593337 New year bimonthly publication Sailplane columns being written exclusively F3B Don Edberg Cross-Country Miles Moran fellows have years experience disci plines passing along us lot great formation prospective NSS Handbook has put hold time being need find mat agreeable Everyone involved great ideas opinions time feel handbook ready put place anyone would like free copy Sailplane includes membership application NSS drop line 8151 Broadway San Antonio TX 78209 give call 512 821-6299 As say cooler commercial Thank support League Silent Flight news Sailplaners have achieved Level V account about 1 % total LSF membership 6100 since list now boasts 62 names new Level V members LSF Numbers date achievement No 57Dennis Chall #38338/8/87 No 58Guy Dickes #336010/13/87 No 59Bob McGowan #228610/24/87 No 60Bob Sowder #379511/7/87 No 61Brian Agnew #314012/16/87 No 62Douglas Barry #16444/30/88 Congratulations guys July issue LSF Shortlines went out about 1200 members didnt get want keep up LSF happenings drop postcard name address LSF PO Box 647 Mundelin IL 60060 New monthly magazineSlope Soaring News Lovers Soaring slopes will glad know new journal devoted solely Slope news Slope Soaring News being pub lished out Signal Hill CA Charlie Morey Chuck Korolden Marcie Berriz what Charlie has say about new venture Heres first issue Slope Soaring News #1 see deals RC Slope Soar ing specifically its practiced California say California please dont think snubbing other fliers across US Its just tiny new publication volunteer staff three dont pretend represent Slope Soaring national level wel come contributions readers across US would delighted print interesting 150 Model Aviation Elm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 EAJGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL Now SEE YOUR ORDER NO NITRO CASE Synthetic/CastorBlends 31300055%Byro-Ji 31300065%Premiu 31300088%Premiu 313001010%Byro-Jet 313001110%Premiun 313001210%4 Cycle 313001615%Premium 313001715%4Cyc1eS 313002020%Byro-Jet S 3 13002525%Premium C 313003535%Premium Co 313004545%Premium Co Straight Synthetic 21200055%Byro-Jet Strs 21200065%Premium 212001010%Byro-Jet 212001110%Premium 01515%Premium 5 212002020%Byro-Jet aighi 212002525%Premium ompel 212003535%Premium Compel 2 12004545%Premium Compel Minimum Order Quantity--i Case Byron Originals Inc ACTORY PRICE PER GAL CASE OF 4 1-4 CASES 5 CASES & UP $ 800S 750 800750 860810 900850 900850 900850 10751015 10751015 12501175 1335 1650 1965 7 info anywhere world hope wider recognition will come time now hopelessly local Californians course thats bad innovative ingenious Gliders flying buddies bring slopes weekend newsworthy Slope Soaring News will bring new con cepts forum can share knowledge SSNs first issue lots interesting stuff 16 pages full-size 8 V2 x 11 very well writ ten has photos professionally printed years subscription $1595 Make check Out Charlie Morey send SSN 2601 E 19th St #29 Signal Hill CA 90804 think youll like F3B news As write Team Selection Fi nals coming up two weeks September 1718 Los Angeles course time read contest will have over six weeks ago cant tell made Team until next month latest news about winches ClAM president rescinded new restricted power winch rules adopted April meeting Paris evidently because internal motor bat tery resistance difficult measure first thought wait end means action has stirred up some very strong protest action AMA F3B Team Selec tion Committee Chainnan Don Edberg ClAM F3B Subcommittee Chairman John C Grigg well recommendations AMA Executive Director/CIAJvI Secretary John Worth As date publication issue Model Avi ation situation has resolved F3B program participants Contributing Editor ron Blakeslee will informed AMA HQ staff members further developments RMcM 1988 Team Selection finalists 23 number come four areas around country northern southern California Colorado Illinois finalists Northern CaliforniaBrian Chan Seth Daw son Gene Engelau Rich Spicer Southern CaliforniaMike Bame Don Edberg Gary Ittner Larry Jolly Daryl Perkins Steve Rae Rick Schrameck Joe Wurts ColoradoScott Dukes Bob Edson Mike Hickman Lenny Keer Randy Reynolds Jack Sasson John Wyss IllinoisRich Burnoski Wayne Fredette Jack Hiner Jim McCarthy best luck RC Old-Timers/Mathews Continued page 44 Loreli song Build sometime As can see three-view drawing answering song can challenging model easily built Old-Timer Perhaps complexity explains Barney Snyders much simplified Spook mentioned last column admitted rip-off Mystery Man Ill get suggested modifications rework design since figure anyone capable building wing bit com petent am would suggest however using rule thumb 250 sq wing area u engine displacement choos ing power plant overpower beautiful airplane screaming rate climb such would pure sacrilege opinion Mystery Man full-size plan available No 3A7 Old Time Plan Service 253 No 4th St PO Box 90310 San Jose CA 95109Joe Weathers Aeroneers Joe Weathers founding member San Diego Aero neers 1935 remained active member un til death 49 years later nominated AMA Hall Fame club particu larly through efforts Jim Alaback ducted August 1988 Jim has able obtain vast collection Joes materials has now cataloged re stored drawings photos preserva tion San Diego Aerospace Museum Joes family friends have helpful Jims efforts inasmuch sensed impor tance preserving material future Alaback has arranged Joes unpub lished designs mostly drawn shelf paper traced onto vellum reproducible copies have provided AMA Museum Old Time Plan Service also making copy negatives Joes original photos well newspaper clippings etc total documented design list has now ex ceeded 100 published unpublished planes Among drawings three-view Tubby see column October 1980 annotations indicate Weathers developed model part design proposal fullsized aircraft Obviously nothing came wouldnt its esthetic appeal have vastly greater Aeronca C3 does resemble Aeroneers publishes newsletter best can subscribe $750/year writing Jim Alaback 16634 Diaz Dr San Diego CA 92128 History its artifacts brief overContinued page 154 December 1988 151 BYRONPerformance Blended Fuels ORIGINALSINcF Higher Smoother Running Slut erior Lubrication ualled Rust Protection TENTLY BLENDED specific use 1oesnt stock Byron Originals Fuels order direct E FREE FREIGHT Overseas call shipping quote RETAIL PER GAL $1095 1095 1195 95 5 3310
Edition: Model Aviation - 1988/12
Page Numbers: 42, 43, 142, 144, 145, 149, 150, 151
NEW MULTIPLEX RADIO time read Bob Boomer Beemer R/C West should have FCC approval begin selling new Multiplex Profi MC 3030 nine-channel ra dio radio made Germany transmit ter new top-of-the-line set can thought being third generation RC microcom puter technology follows Multiplexs Profi 2000 1980 Royal MC 1984 Unlike Royal MC transmitter Profi MC 3030 does use removable soft modules program software stored within its integral microcomputer Multiplex calls its software BOSS German Benutzer Orientierte Sender Sprache English means User Oriented Transmitter Language four-line 64-position liquid crystal display communicates user/programmer Geiman Bob will have complete instructions translations explain what transmitter saying Actually programing very simple stall everything airplanereceiver bat tery servosand tell transmit ter name plane setting up will store setups up 15 different planes successively call up 17 fixed concepts templates use standard modeling language like crow/butterfly flaper elevator compensation etc Integral Programmer interconnects superimpos es functions necessary BOSS talks display input instructions using eight keys under plate front transmitter final step set direction servos adjust lengths servo travel adjust mixing ratios between servos Profi MC 3030 transmitter has other features Some ones like six-cell Martin Bamerts fleet scratch-built giant DG Scale Gliders yard home Switzerland Wingspans range 375 50 meters 42 Model Aviation Radio Confrol Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Martin Bamert Speedo 87 Model uses wing-twist roll control designed fun flying mountain slopes would good Racer AMA folks would happier sleek design nose little less pointy Catalog photo new Multiplex Prof i MC 3030 transmitter has bells whis tles Multiplex radios available Beemer R/C West Address column 1 700-mAh battery pack providing nine hours operation built-in battery monitor beeps warn low voltage digital voltage display PCM PPM encoding auto matic backup security memory save set tings mixing arrangements program segments being changed short set corporates much state-of-the-art design youre going find available today Bob cant quote prices until FCC approval obtained give general idea said 3030 would bit Royal MC Expert set much less Profi 2000 replaces interested formation lets hope price list Id sug gest sending large SASE Bob requesting same address Beemer R/C West 7725 E Redfield Road Suite 102 Scottsdale AZ 85260 telephone 602 483-9577 closing clubmate electronics advi sor Kurt Rosner pointed out important dis tinction about radios Namely two parts radio bells whistles transmitter actual radio link between transmitter receiver sophisticated computerized mixing isnt much good plane hit interference What get Multiplex radio system proven work very well 10-kHz frequency-spacing environ ment used Europe years Dont get 1991 planned 20-kHz fre quency spacing US commercial us ers paging systems data transmission etc will broadcasting more heavily right tween frequencies So really must have l0-kHz selectivity receiverwhich Multiplex gives Martin Bamert September 1988 column Martins article make molded wings Sailplanes Feedback has very positive Im happy able show Martins work first love big Scale ships shown two photos taken parents lawn Bern Switzerland Grosseglers giant Glid ers flown high slopes Swiss Alps Since Martin moved temporarily States build something portable answer problem Speedo 87 described September specs Speedo 87 reveal should great F3F Slope Rac ing plane wingspan 945 elevator span 204 fuselage length 518 weight 759 oz wing area 470 sq ft wing loading 1615 oz/sq ft wing airfoil RG 12A-18/90 stab air foil NACA 0006 Martins big birds 135-scale models DG sailplanes made Glaser-Dirks Flugzeubau Germany fuselages 20 meters long Specifications follow given order plane name wingspan meters weight lb wing loading oz/sq ft back front Continued page 142 7f4iVGMFTigerskin4J WHAT DO YOU CALL THE BEST SHEETING MATERIAL FOR FOAM WING CORES Wing Mfg pioneered foam core wing construction early 60s have used everything tangowood 1202 stainless steel sheeting last few years have using pressure laminates evolved R & 0 work Uncle Sam Tigerskins pre-finish high density posterboard material clear laminated plastic film top simply apply contact cement such Styro-Stick adhesive cores end sheeting press sheeting onto cores material pliable can easily wrap around leading edges Tigerskins CHECK THESE FEATURES Superior strength weight ratio Superior bond capability foam 001 per sq temperature stability Smooth high gloss finish Superior resistance nitro fuel Superior resistance weather Easy apply Low low cost 01/64 x 23 x 35 size Comes following colors Waco Red Polar White Insignia Blue Sun Yellow $495 PER SHEET PkA~g7 8t5t ORDERING Send check money order required amount Add $395 shipping 1 6 sheets Add $749 shipping 7 12 sheets SEND TO Wing Mfg PO Box 33 Crystal Lake IL 60014 Illinois Residents add 6 1/20/s sales tax Super Styro-Stick wing skin adhesive $5OB 16 oz Can Item 4601 can does wing up 70 No extra shipping cost ordered Tigerskins See Tigrskins Chicago Model & Hobby Show Booth 1735 Aerospace Parks Means Business. Degrees Careers Men Women Degree Programs Aeronautical Administration Aerospace Engineering Aircraft Maintenance Engineering Aircraft Maintenance Management Airway Science Aviation Science/Professional Pilot Avionics Electrical Engineering Logistics Meteorology Transportation Travel Tourism Certificates Airframe Powerplant Technician Logistics Technology Write Call Admissions 618-337-7500 1-800-851-3048 1-800-851-7878 In Illinois Ii41j SEND $350 FOR CATALOG cityStateZip TelephoneSoc Security No Major December 1988 43 Competition Products foam wing cores availabale Full-Size saddles Top core L sits foam saddle cut Note trailing edges Right core R Full-Size saddle Extra chord saddle supports TE sheeting during laminating pro cess Theres info column Aerospace nations number employer Parks first aerospace education Pais College SAINT LOUIS UNWERSITY information complete mail Name Address HS Graduation Date Return Parks College Saint Louis University MACahokia IL 62206 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STITT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS servo connector Turn transmitter select op tion will notice will hor izontal scale drawn computer screen calibrated milliseconds moving pointer follows motion transmitter stick see Figure #7 prefer digital read-out pulse length theres also numeric read out measuring incoming pulse length nearest microsecond option serves two purposes can used measure end points stick travel also can used see well transmit ter sticks return neutral after theyve released Let stick snap back neutral take reading slowly return stick neutral see get same reading Move stick opposite direction same good set sticks will typi cally return within few microseconds same neutral setting time either direction measurement solved problem originally thought servo linkage problem systems plane would stay trim problem finally found sticky stick transmitter didnt al ways return same spot after re leased word cautionif select Op tion #7 have receiver connected computer have receiver connected no transmitter running computer will appear lock up nor mal Whats happening computer waiting pulse come User Port get out locked-up mode hold down Run/Stop key tap Re store keys Option #8 Slew Servo allows slowly move servo through its range using arrow keys lower right side keyboard change servo output arm position moving output arm position using option given read-out near est microsecond pulse length servo receiving option can used check servo linearity have large pointer con nected servo output arm protrac tor other means accurately determin ing pointer position could plot curve pulse length horizontal axis servo rotation vertical axis servo truly linear curve plot will turn out perfectly straight line Figure #1 have about hours work $10 can build transmitter checker automated servo testing setup using handful parts inex pensive home computer dont hap pen have Commodore C-64 computer should someone within club does computerized radio/servo checker could make interesting group project something club could make available service during meet ing rainy weekend give mem bers means checking RC systems hope find useful tool Parts List 1 ea Aileron Connector match radio sys tem 1 ea PC Card Edge Connector match Com modore C64* IC Electromcs part #41-804 #41-816 Amphenol part #225-2-12-2-4-1-01 Cinch part #251-12-30-160 1 ea Experimenters Dual IC Board Radio Shack catalog #276-159 1 ea 2N3638 MPS2907 other PNP silicon general purpose small signal transistor Radio Shack catalog #276-2023 1 ea 4700 Ohm A-watt resistor Radio Shack catalog #271-1330 1 ca 22000 Ohm A-watt resistor Radio Shack Catalog #271-1339 Solder wire miscellaneous small hand tools *The cost PC card edge connector lo cal electronics dealer approximately $375 Its also listed part number 12/245E Jameco Electronics catalog costs $149 can reach Jameco Electronics 415 592-8097 write 1355 Shoreway Rd Belmont CA 94002 Janieco has $2000 minimum order may want get few friends together prepare bulk purchase Jameco also requires 5% handling fee $100 minimum Call Ja meco cant find connector locally have handful connectors Ill pro vide $500 first-come basis until supply runs out Please include pre-addressed stamped envelope orders case check has returned software project available Commodore diskette au thor CompuServe No hard copy printout available diskette can obtained sending $500 check money order cover cost disk mailer postage Bernard L Stuecker 2433 Carey Ln Vienna VA 22180 CompuServe subscribers can GO MOD ELNET find program software dowaloading Library 11 com mand BRO KEYSERVO can get CompuServe subscription information calling CompuServe 800 848-8199 AMA member would like free CompuServe subscription kit write Doug Pratt AMA HQ 1810 Samuel Morse Dr Reston VA 22090 ModelNet AMAs computer bulletin board service need information about project please sure include pre addressed stamped envelope query address above RC Soaring/Blakeslee Continued page 43 planes DG-100/428/132/229 DG-200 Acroracer/3 75/[ 106/ 128]/293 DG-200/ 428/119/257 DG-l00/428/143/250 DG 202/500/[139/16 11/216 first DG-100 now 11 years old wings DG-200 conventional con struction 2mm balsa sheeting steel blade joiners others have blue foam cores covered fiberglass obechi made using vacuum-bag technique DG-202 50 142 Model Aviation OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 E ADD $100 auinrn IAIITLJIId 2A UfI R5 Fox 1988 Schneurle SPECIFICATIONS BORE650 STROKE600 DISPLACEMENT199 WEIGHT8 oz RPM 8-4 prop17000 FUEL CONSUMPTION4 az/mm Recent Fox design gives engine performance punch exotic racing motors have engine docile nature has hot restart capability lacking ABC motors Order# StyleCost 12000 Fox 19BBCL$5995 22000 Fox 19BB RC lw/muffler $7995 Fox 25 SPECIFICATIONS BORE680 STROKE680 DISPLACEMENT25 RPM 9-4 prop12000 WEIGHT6 oz FUEL CONSUMPTION4 02/mm Light Powerful Big 25 light 1 9s packs power some 29s superb performer Fox 25 has market long enough thoroughly tried tested Its American made features MKX-type carburetor Order#Style 12500Fox 25 Bushing CL 22500Fox 25 Bushing RC lw/muffler Cost $4995 $6995 meters wingspan 167 ft certainly impres sive machine Can visualize throwing off side mountain Martin says about 202 flies very well due its long wing behaves somewhat sluggishly air still completely aerobatic can flown light breezes wing loading 25 oz/sq ft DGs use Wortmann air foils similar used full-size gliders Contrary popular opinion 11 years back sections perform very well Scale Gliders have flown high wing loading higher speed yield good performance Competition Products foam wing cores guys talk around country agree best wing cores theyve seen come Ed Ber ton Competition Products Florida Ed cuts cores longer normal can sup ply full-size beds ones come cores use pressing wings dreams what Ed says about work ensure quality precision wing cores cut exclusive motor-operated foam-cutting machine Cores exceptionally smooth trailing edges straight sharp can cut size chord within reason taper Maximum wing panel length 72 would impossible stock airfoils chord sizes however stock one-piece E-2 14 Windsong wing cores have templates 31 Eppler air foils 15 Seligs Quabecks others order set custom wing cores simply send set root tip templates along panel length maximum length 72 taper desired prefer will make tem plates additional cost 'Competition Products manufactures two types foam wing products conventional cores new Full-Size construction saddles Con ventional standard cores have around years cut undersized allow wing sheeting usually a / removed top bottom airfoil core can 3/4 1 narrower width chord finished wing means apply adhesive press skins core trailing edge sticking out saddles up inch no support usual result wavy trailing edges Most airfoils used Sailplanes have very delicate trailing edges must kept straight sharp often undercambered main tain airfoils shape obtain perform ance designed profile Keeping 3/4 unsupported trailing edge straight maintaining airfoil very criticalbut always easy Competition Products has answer Full-Size construction saddles Unlike conventional cores cut under sIze Full-Size construction saddles cut same size finished wing chord dimen sion same important airfoil ts exactly same finished wing wing core sheeted placed between Full-Size top bottom saddles finished trailing edge wing flush con struction saddles wings trailing edge fully supported along entire length pan el therefore kept perfectly straight assum ing building surface straight BR Full-Size construction saddles integrity airfoil maintained 100% Full-Size construction saddles must used matching set conventional cores cores come Full-Size saddles just along ridethey used thing BR Full-Size saddles used suspected forces insignfl cant spiral propwash pushing rudder overriding force play sed little test Take North PacJic type rubber model Assemble andfly willfly left turn circles Now cement stab CA extend rudder slotfrom top bottom Put rudder facing down will fly right turn circles Replace rudder longer parallel sheet can slide up down will able find position top forces bottom forces balanced model will fly straight Conclusion orities just plain wrong second popular belief just isnt Reducing crankcase volume 2 cycle model airplane motor will improve its power observations didnt jibe theory devised test fitted unported cylinder piston rear cover could pull piston out motor running thus varying crankcase volum& Result very slight increase RPM crankcase volume increased didnt expect test repeated several other Fox motors le brand Xmotors case maximum RRM achieved somewhat greater case volume stock Conclusion authorities hopping up motor just plain wrong third popularfallacy certain imported motors best can buy simple test can run yourself Buy Fox 40 Standard slightly costly 0540 EP Check both ease starting power idle throttle response Need tell results bock-up test buy Fox 50 its expensive imported counterpart Perform same tests Condusion orities tell buy imported motor just plain wrong Happy Flying 3JA Manufacturing Company 5305 Toweon Avenue Fort Smith AR 72901 Phone 501 848-1656 144 Model Aviation everything told example often told motor torque gyroscopic action causes aircraft want turn left power applied FOX MANUFACTuRING CO 5305 Towson Avenue Fort Smith Arkansas 72901 501 646-1656 5 WE ARE SHOOTING DOWN 4w4 HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only 3D BALSA TRIANGLES 36 1414 25 3838 30 1212 35 3434 45 1~1 55 3116 3718BALSA PLANKS36 452411 51612154 612013200 3014280 31241 23275 261124350 3022225 484423325 565524435 662833495 753734588 8446 13955TAPERED SHEETS36 70142 3143 238 2 68 78383 98 65123120 90 BALSA SHEETS 36 48 1162 33 3322 40 18 2 43 3162 49 14 2 56 1323 37 1203 37 1163 37 48 3323 44 58 18 3 54 71 3163 62 82 14 3 7395 5 163 85110 38 3 66124 123110155 34 3165191 1164 5876 3324 70 94 164 80106 3164 93122 44110134 38 4165225 12 4225261 MATCHED SHEETS 42 3324100 80108 3164120 144131 BALSA SliCKS 3645 1161409 1163810 1161214 332 1410 332 3812 332 1216 18 1808 181411 183812 181210 31631611 316 3817 316 1222 14 1416 143819 41221 143434 14 140 51651671 38 3827 381232 383442 3812 21236 123446 12158 566648 343467 BALSA HOT LINE Cell 1806 745 6394 10 em 6pm Ceefral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 LONE STAR EPOXY 900LSI695 598 lSrrls598 3Orn,598 LIGHT 4-6 LB WOOD36 1323 53 1203 53 1163 53 3323 63 183 77 3163 89 143104 383122 123158 343242 3335 1164 83 3324100 164115 3164133 144158 364236 124322 TRAILING EDGE 36 14132 5161 14 39 3611246 12270 INSTANTGLUE loOSca298 1 oo TIne 298 2oo Thick 550 20 15, 556 BASSWOOD48 316311626 3161438 3163838 31161/246 31163460 1141442 143849 143480 318 31860 3811270 318 31490 121290 1234100 BUNDLE DEALS 20-116336 699 201164361035 20332 336 865 16332436 965 1518336 735 1018 436 695 15316336 920 103164 36 835 1014336 655 1014436 938 10318336 870 5318436 655 51123036 548 512436 1088 10332448 885 518448 500 5316448 600 514448 645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 18 1i8 18 14 18 38 316 3116 114 14 114 318 14 12 318 38 3i8 1i2 1212 1234 1725 2026 2232 2638 3450 4055 4565 4968 6077 6688 7597 SPRUCE TRIANGLES 36 38 3847 121264 34 HARD MAPLE 1 4 38 3838 3812 3834 1 2 34 BIRCH DO WEL S 18 316 14 516 36 IS 40 45 50 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412620 13212445 11612455 1812485 S PLY BIRCH 3132 12 11812 316 12 114 12 38 12 12512 48 588 625 625 625 725 900 LITE PLY 48GROOVED LGMOUNTS 12 Inches 383418140 3834 16132140 1234l3116l45 186155 1812315 ________________________ _____________________ 146 250 1412495 cost s Handling Charge pay UPS Add $250 COD $300 extra PP APO FPO States accept VIsa Master Card personal checks COO 63% lao 111 reuas US currency 0014 MrSirrrunr Wood Order 110 00 I~I1LU [6] i _______________ during sheeting/pressing process Washout can built both conventional cores Full-Size saddles thus assuring both wing panels will exactly same conventional cores Full-Size saddles cut 1 -lb-density white virgin foam Re ground material used Two-pound-density blue foam also available additional cost items shipped UPSno COD cannot shipped PO Box address Conven tional cores Full-Size saddles $45 per set plus UPS Multipanel wings $2250 per pan el plus UPS Custom templates $30 per pair info order sheet send SASE Ed 921 Birdie Way Apollo Beach FL 33570 telephone 813 645-5171 Next month well have scoop Ed skins wings using epoxy resin adhesive ATRCS follow-up August 1988 column re posied ATRCS microprocessor conversion Airtronics Module 75P transmitter may recall amazing system designed being sold byControl Systems Laborator ies Silicon Valley CA As good control system sounded paper theres old saying about proof pudding o reason extremely happy receive re port Satlplaner ATRCS actually worked him following letter Asher Carmichael Daphne AL Asher professional wood worker dealing things like fine furniture clock cases Readers Jim Grays RIC Soaring Digest will recognize Ashers name because has writing very informative entertain ing series articles Sailplane construction techniques Ashers ATRCS report old saying among cabinetmakers mark master craftsman whether make mistakes correct continue make enough unreconcilable gaffes profession possibly considered jour neyman seem transfer same ten dency modeling interests times mistake will present itself seems no way out Occasionally an swer found salvages situation may pearl great price Such case Windsong Having decided fly Windsong pri mary contest ship set about finding out could about plane compatible radio sys tems Some people said build plane equip just like Dodgson says Others said No will missing something dont mix functions electronically Well being tinkerer heart hav ing enough experience know otherwise went out bought Airtronics Module 75P elec tronically control plane dreams read letters put out 75P fliers seemed way go After push switch herer pull lever trimmer could achieve functions Dodgson recommends plumbing Let tell after first few flights just knew made right decision plane performed flawlessly could change throws compensations mixing values etc twist pot reveled upmanship few months placed very first contest Other fliers beginning whisper Better watch Carmichaelhe has hot plane finally taking metal home So said myself Now time really start playing Continued page 149 fliS oia timer perfectly proportioned modeling Curtlss Robin 049 EngInes -channel RIC 4 Wlngspsn ElectrIC Power Optional 12295 511 e103 Very few lull scale aircra8 ideaily nailed model flight appealing old Carliss RoSin horn spruce linen age heaulilulty pmportioned ruhh8r electric glow engines Easy tan SolId trainerlike perlormence Flytine Models Catalog hOt phOne 1783127316683 INE MODELS INC PO Box 2136 Falrlax VirginIa 22031 LL5A December 1988 145 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa TWO NEW FLIGHT BOXES Completely assembled aud tinished 51440 USA Both lop quality wood conslraclion Two large drawers Unique drawer locks Small hoc $8500 plus shipping Large hoo5 12500 ptas shipping includes laeI cumparlmentbatteryypuwnr panel coerparlmenladlaslable tuselage cradles Money hack guarantee send 53 101 specs call 415 3637732 lease nressage Flights Fancy e coma de flag P0 80 1 La Plonda Ca 84820 4 19 4 # / ADULTS $300 CHILDREN 612 $100 w/adflt SENIOR CITIZENS $200 NEW PAVILION & EXPO HALL WESTERN WASHINGTON FAIRGROUNDS POYALLUP WASHINGTON FREE PARKING OC I1 FOR INFO CONTACT DON SWEASY 206 847-1279 PO BOX 73939 PUYALLUP WA 98373 OR BOB BEAN Evenings 206 848-0160 PACIFIC TIME) -4 RC Soaring/Blakeslee Continued page 145 switches levers have budding reputation uphold better unlock full per formance envelope airplane additional setup instructions gath ered through modeling press 7SP worked just greaton ground Push flap trim lever forward pull flap preset switch hack reflex Slide side pot forward spoilerons throttle stick down flaps Its quite easy youre flying 0K Im air Oh no bad sinkhave get Out Lets see flap trim forward left hand flap switch hack right reflex other way around Hey whos flying airplane Oh well Im really used yet Uh-oh already time land Flaps down throttle stick left hand spoiler ons up side pot left hand Oops Im land ing short Quick get everything hack neutral hand Youve got kidding Friends didnt take long realize stuck part limited capabili ties whether own didnt listen Dodgson could have control functions onor adjacent tothe sticks right fingertips continued fly Windsong during contest season benefit what con sider easy control functions did manage place few contests Still thought oc curred Wouldnt nice day answer dreams came mail description ATRCS though would cost seemed like logical way out already 75P re luctant give up some its features switching hack mechanical mixing Send transmitter along $300 California article said problems will solved Tom Mroz Eugene Engelau Control Systems Laboratories designed retrofit 75P called Advanced Technology Radio Control System ATRCS pronounced A-Tracks short Basically digital en coder replaces pots switches computer LCD readout six keypad tons understanding sys tem could everything wanted doand morewith two transmitter sticks three-pole switch Well couldnt wait price seemed high considering what plane already might pearl after gave let tell am glad system turns 75P absolute wonder now equivalent advanced radio world mixing presets available boggle mind easy set up fly well Someone finally given us Glider-guiders elec tronic capabilities manufacturers tantalizing us long system designed Sailplanes panic ularly multichannel ones encoder asks certain questions concerning functions de sired and/or available questions dis played LCD respond yes no set control surface movement use increment/decrement buttons Such things electronic centering travel vol ume mixing kinds presets easily obtained seven templates com puter correspond control con figuration likely encounter F3B flying wings Just pull up LCD away gosetting things up liking can program store setups four different planes same plane dif ferent settings transmitter convenient switch added above flap stick ena bles change another compatible setup during flight real advantage wish have plane programmed different condi tions tasks Flip switch fly can add drop out mixing change con trol surface travel As example have four independent servos flaps ailerons could switch flight between flape rons standard aileron/flaps configuration two functions appeal Windsong spoileron/crow threeposition trailing edge presets functions re quire have independent aileron servos thats small price pay benefit Spoilerons begin actuating flap-stick position choose position flap stick appropriate location enter en coder memory pressing two buttons As lower flaps both ailerons will start rising gether pass threshold position what meant spoilerons ailerons go up act like spoilers Crow means flaps down ailerons upthe effective means glidepath control BR yes can pro gram reverse differential spoilerons along elevator compensation dont like spoilerons time can drop out deleting alternate setup ac tuate setup flight flick alter nate switch three-position trailing edge presets lo cated three-pole switch top trans mitter Push switch forward trailing edge launch modeflaps down say 200 ailerons down 100 combination Center switch neutral cruise setting Push switch back entire trailDecember 1988 149 VINTAGE FORSTER ENGINES Using original casting dies lastest computer control led machi ery RJL producing highest quality lowest priced vintage engines avai able Both engines come complete original reprinted box literature Ignition version equipped clear plastic tank single speed Forster timer Both engines perfect SAM Old Time Stunt events Delivery Dec 88 glow Mar 89 ignition Satisfaction Guaranteedl Add $300 per engine shipping handling Calif residents add sales tax Glow plug spark plug coil condenser included RJL INDUSTRIES PO Box 5 Sierra Madre CA 91024 818 3590016 ing edge reflexed 60 high-speed flying An add-on programmable switch some transmit ters may give last two settings will give elevator compensation appropriate mode ATRCS does though Windsong doesnt need side pot 7SP can now programmed adjust camber along entire trailing edge might advantageous planes hav ing airfoils benefit slight camber changes light lift other trailing edge functions remain effect option mixing gains adjust ments available ATRCS havent really explored yet should pointed out transmitter will work flight packs other Airtronics same frequency course will also work new Airtronics Spectra PCM receivers well standard PPM/FM nice feature extra margin safety Also travel volume readouts percentages makes snap return control surfaces previous positions start playing planess trim settings features ATRCS/7SP system flies just like other proportional radio control sticks trim pots etc work nor mally would takes about two weeks including shipping time CSL work transmitter returned professionally printed instruction manual quite thorough understand able one-year warranty ATRCS components workmanship CSLs address 1361 Fallen Leaf Dr Milpitas CA 95035 tele phone 408 946-4142 Maybe some method madness know ATRCS has blessing Windsong system time has come have inclination mix control functions Windsong other full-function Sail plane electronically dont settle anything less ATRCS Hi-Performance Sailplanes Martin Bamerts ar ticle making wings molds sparked lot interest high-tech Sailplane wing construc tion methods first question people ask can buy materials Therefore glad hear Ron Wagner has just started up Hi-Performance Sailplanes Ron spe cializing materials needed molding vacuum-bagging wings expense out-of-sight minimum orders Rons rundown current offerings 1 HP Cell wing skins Hi-Performance wing skins new product designed replace balsawood skins enhance wing surface quality glass cloth used over blue foam material engineered replace 2mm Rohacel sightly denser 5 lb/cu ft Its thickness 060 15mm means less volume lower-weight wing sheet size 24 x 96 ideal larger Gliders eliminates splicing balsa sheets 2 Three types epoxies Type 1 thinviscosity laminating epoxy suitable bonding lightweight cloths wing skins Type 2 wing-skin-bonding adhesive works well HP Cell blue foam Type 3 recommended structural bonding adhesives first true epoxy adhesives market Epoxies bonding blue foam require certain properties have considered epoxy de velopment Available quart size plus hardener 3 Magnalite carbon laminates Type unidi rectional carbon fiber 007 x 1 x 72 Type 2 same except 014 thick Type 3 tapered 030 root 007 tip 72 long material can custom cut var ious lengths widths 4 Nomex HP honeycomb 3-lb cell-structure honeycomb 080 x 12 x 96 5 Fibergloss cloth 1 4-oz treated E Glass use HP Cell wing skins also stocks 2-oz treated E-Glass 6 Mylar sheets 014 thick laying over wet epoxy/glass during vacuum bagging Mini mum size 48 x 36 Hi-Performance Sailplanes address 17902 NE 156th St Woodinville WA 98072 tele phone 206 487-1721 suggest sending SASE Ron requesting latest price list mention ing exactly what application can prob ably assist getting started path higher-tech higher-performance Sailplanes NSS update Cliff Oliver Secretary/Treasurer Membership up 15% time last year Interest host clubs sponsoring Soar-In competition also up year thanks ef forts Marshall Long anyone interested hosting Soar-In next year start planning now contacting Marshall 824 Garden Meadow Universal City TX 78148 telephone 512 6593337 New year bimonthly publication Sailplane columns being written exclusively F3B Don Edberg Cross-Country Miles Moran fellows have years experience disci plines passing along us lot great formation prospective NSS Handbook has put hold time being need find mat agreeable Everyone involved great ideas opinions time feel handbook ready put place anyone would like free copy Sailplane includes membership application NSS drop line 8151 Broadway San Antonio TX 78209 give call 512 821-6299 As say cooler commercial Thank support League Silent Flight news Sailplaners have achieved Level V account about 1 % total LSF membership 6100 since list now boasts 62 names new Level V members LSF Numbers date achievement No 57Dennis Chall #38338/8/87 No 58Guy Dickes #336010/13/87 No 59Bob McGowan #228610/24/87 No 60Bob Sowder #379511/7/87 No 61Brian Agnew #314012/16/87 No 62Douglas Barry #16444/30/88 Congratulations guys July issue LSF Shortlines went out about 1200 members didnt get want keep up LSF happenings drop postcard name address LSF PO Box 647 Mundelin IL 60060 New monthly magazineSlope Soaring News Lovers Soaring slopes will glad know new journal devoted solely Slope news Slope Soaring News being pub lished out Signal Hill CA Charlie Morey Chuck Korolden Marcie Berriz what Charlie has say about new venture Heres first issue Slope Soaring News #1 see deals RC Slope Soar ing specifically its practiced California say California please dont think snubbing other fliers across US Its just tiny new publication volunteer staff three dont pretend represent Slope Soaring national level wel come contributions readers across US would delighted print interesting 150 Model Aviation Elm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 EAJGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL Now SEE YOUR ORDER NO NITRO CASE Synthetic/CastorBlends 31300055%Byro-Ji 31300065%Premiu 31300088%Premiu 313001010%Byro-Jet 313001110%Premiun 313001210%4 Cycle 313001615%Premium 313001715%4Cyc1eS 313002020%Byro-Jet S 3 13002525%Premium C 313003535%Premium Co 313004545%Premium Co Straight Synthetic 21200055%Byro-Jet Strs 21200065%Premium 212001010%Byro-Jet 212001110%Premium 01515%Premium 5 212002020%Byro-Jet aighi 212002525%Premium ompel 212003535%Premium Compel 2 12004545%Premium Compel Minimum Order Quantity--i Case Byron Originals Inc ACTORY PRICE PER GAL CASE OF 4 1-4 CASES 5 CASES & UP $ 800S 750 800750 860810 900850 900850 900850 10751015 10751015 12501175 1335 1650 1965 7 info anywhere world hope wider recognition will come time now hopelessly local Californians course thats bad innovative ingenious Gliders flying buddies bring slopes weekend newsworthy Slope Soaring News will bring new con cepts forum can share knowledge SSNs first issue lots interesting stuff 16 pages full-size 8 V2 x 11 very well writ ten has photos professionally printed years subscription $1595 Make check Out Charlie Morey send SSN 2601 E 19th St #29 Signal Hill CA 90804 think youll like F3B news As write Team Selection Fi nals coming up two weeks September 1718 Los Angeles course time read contest will have over six weeks ago cant tell made Team until next month latest news about winches ClAM president rescinded new restricted power winch rules adopted April meeting Paris evidently because internal motor bat tery resistance difficult measure first thought wait end means action has stirred up some very strong protest action AMA F3B Team Selec tion Committee Chainnan Don Edberg ClAM F3B Subcommittee Chairman John C Grigg well recommendations AMA Executive Director/CIAJvI Secretary John Worth As date publication issue Model Avi ation situation has resolved F3B program participants Contributing Editor ron Blakeslee will informed AMA HQ staff members further developments RMcM 1988 Team Selection finalists 23 number come four areas around country northern southern California Colorado Illinois finalists Northern CaliforniaBrian Chan Seth Daw son Gene Engelau Rich Spicer Southern CaliforniaMike Bame Don Edberg Gary Ittner Larry Jolly Daryl Perkins Steve Rae Rick Schrameck Joe Wurts ColoradoScott Dukes Bob Edson Mike Hickman Lenny Keer Randy Reynolds Jack Sasson John Wyss IllinoisRich Burnoski Wayne Fredette Jack Hiner Jim McCarthy best luck RC Old-Timers/Mathews Continued page 44 Loreli song Build sometime As can see three-view drawing answering song can challenging model easily built Old-Timer Perhaps complexity explains Barney Snyders much simplified Spook mentioned last column admitted rip-off Mystery Man Ill get suggested modifications rework design since figure anyone capable building wing bit com petent am would suggest however using rule thumb 250 sq wing area u engine displacement choos ing power plant overpower beautiful airplane screaming rate climb such would pure sacrilege opinion Mystery Man full-size plan available No 3A7 Old Time Plan Service 253 No 4th St PO Box 90310 San Jose CA 95109Joe Weathers Aeroneers Joe Weathers founding member San Diego Aero neers 1935 remained active member un til death 49 years later nominated AMA Hall Fame club particu larly through efforts Jim Alaback ducted August 1988 Jim has able obtain vast collection Joes materials has now cataloged re stored drawings photos preserva tion San Diego Aerospace Museum Joes family friends have helpful Jims efforts inasmuch sensed impor tance preserving material future Alaback has arranged Joes unpub lished designs mostly drawn shelf paper traced onto vellum reproducible copies have provided AMA Museum Old Time Plan Service also making copy negatives Joes original photos well newspaper clippings etc total documented design list has now ex ceeded 100 published unpublished planes Among drawings three-view Tubby see column October 1980 annotations indicate Weathers developed model part design proposal fullsized aircraft Obviously nothing came wouldnt its esthetic appeal have vastly greater Aeronca C3 does resemble Aeroneers publishes newsletter best can subscribe $750/year writing Jim Alaback 16634 Diaz Dr San Diego CA 92128 History its artifacts brief overContinued page 154 December 1988 151 BYRONPerformance Blended Fuels ORIGINALSINcF Higher Smoother Running Slut erior Lubrication ualled Rust Protection TENTLY BLENDED specific use 1oesnt stock Byron Originals Fuels order direct E FREE FREIGHT Overseas call shipping quote RETAIL PER GAL $1095 1095 1195 95 5 3310
Edition: Model Aviation - 1988/12
Page Numbers: 42, 43, 142, 144, 145, 149, 150, 151
NEW MULTIPLEX RADIO time read Bob Boomer Beemer R/C West should have FCC approval begin selling new Multiplex Profi MC 3030 nine-channel ra dio radio made Germany transmit ter new top-of-the-line set can thought being third generation RC microcom puter technology follows Multiplexs Profi 2000 1980 Royal MC 1984 Unlike Royal MC transmitter Profi MC 3030 does use removable soft modules program software stored within its integral microcomputer Multiplex calls its software BOSS German Benutzer Orientierte Sender Sprache English means User Oriented Transmitter Language four-line 64-position liquid crystal display communicates user/programmer Geiman Bob will have complete instructions translations explain what transmitter saying Actually programing very simple stall everything airplanereceiver bat tery servosand tell transmit ter name plane setting up will store setups up 15 different planes successively call up 17 fixed concepts templates use standard modeling language like crow/butterfly flaper elevator compensation etc Integral Programmer interconnects superimpos es functions necessary BOSS talks display input instructions using eight keys under plate front transmitter final step set direction servos adjust lengths servo travel adjust mixing ratios between servos Profi MC 3030 transmitter has other features Some ones like six-cell Martin Bamerts fleet scratch-built giant DG Scale Gliders yard home Switzerland Wingspans range 375 50 meters 42 Model Aviation Radio Confrol Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Martin Bamert Speedo 87 Model uses wing-twist roll control designed fun flying mountain slopes would good Racer AMA folks would happier sleek design nose little less pointy Catalog photo new Multiplex Prof i MC 3030 transmitter has bells whis tles Multiplex radios available Beemer R/C West Address column 1 700-mAh battery pack providing nine hours operation built-in battery monitor beeps warn low voltage digital voltage display PCM PPM encoding auto matic backup security memory save set tings mixing arrangements program segments being changed short set corporates much state-of-the-art design youre going find available today Bob cant quote prices until FCC approval obtained give general idea said 3030 would bit Royal MC Expert set much less Profi 2000 replaces interested formation lets hope price list Id sug gest sending large SASE Bob requesting same address Beemer R/C West 7725 E Redfield Road Suite 102 Scottsdale AZ 85260 telephone 602 483-9577 closing clubmate electronics advi sor Kurt Rosner pointed out important dis tinction about radios Namely two parts radio bells whistles transmitter actual radio link between transmitter receiver sophisticated computerized mixing isnt much good plane hit interference What get Multiplex radio system proven work very well 10-kHz frequency-spacing environ ment used Europe years Dont get 1991 planned 20-kHz fre quency spacing US commercial us ers paging systems data transmission etc will broadcasting more heavily right tween frequencies So really must have l0-kHz selectivity receiverwhich Multiplex gives Martin Bamert September 1988 column Martins article make molded wings Sailplanes Feedback has very positive Im happy able show Martins work first love big Scale ships shown two photos taken parents lawn Bern Switzerland Grosseglers giant Glid ers flown high slopes Swiss Alps Since Martin moved temporarily States build something portable answer problem Speedo 87 described September specs Speedo 87 reveal should great F3F Slope Rac ing plane wingspan 945 elevator span 204 fuselage length 518 weight 759 oz wing area 470 sq ft wing loading 1615 oz/sq ft wing airfoil RG 12A-18/90 stab air foil NACA 0006 Martins big birds 135-scale models DG sailplanes made Glaser-Dirks Flugzeubau Germany fuselages 20 meters long Specifications follow given order plane name wingspan meters weight lb wing loading oz/sq ft back front Continued page 142 7f4iVGMFTigerskin4J WHAT DO YOU CALL THE BEST SHEETING MATERIAL FOR FOAM WING CORES Wing Mfg pioneered foam core wing construction early 60s have used everything tangowood 1202 stainless steel sheeting last few years have using pressure laminates evolved R & 0 work Uncle Sam Tigerskins pre-finish high density posterboard material clear laminated plastic film top simply apply contact cement such Styro-Stick adhesive cores end sheeting press sheeting onto cores material pliable can easily wrap around leading edges Tigerskins CHECK THESE FEATURES Superior strength weight ratio Superior bond capability foam 001 per sq temperature stability Smooth high gloss finish Superior resistance nitro fuel Superior resistance weather Easy apply Low low cost 01/64 x 23 x 35 size Comes following colors Waco Red Polar White Insignia Blue Sun Yellow $495 PER SHEET PkA~g7 8t5t ORDERING Send check money order required amount Add $395 shipping 1 6 sheets Add $749 shipping 7 12 sheets SEND TO Wing Mfg PO Box 33 Crystal Lake IL 60014 Illinois Residents add 6 1/20/s sales tax Super Styro-Stick wing skin adhesive $5OB 16 oz Can Item 4601 can does wing up 70 No extra shipping cost ordered Tigerskins See Tigrskins Chicago Model & Hobby Show Booth 1735 Aerospace Parks Means Business. Degrees Careers Men Women Degree Programs Aeronautical Administration Aerospace Engineering Aircraft Maintenance Engineering Aircraft Maintenance Management Airway Science Aviation Science/Professional Pilot Avionics Electrical Engineering Logistics Meteorology Transportation Travel Tourism Certificates Airframe Powerplant Technician Logistics Technology Write Call Admissions 618-337-7500 1-800-851-3048 1-800-851-7878 In Illinois Ii41j SEND $350 FOR CATALOG cityStateZip TelephoneSoc Security No Major December 1988 43 Competition Products foam wing cores availabale Full-Size saddles Top core L sits foam saddle cut Note trailing edges Right core R Full-Size saddle Extra chord saddle supports TE sheeting during laminating pro cess Theres info column Aerospace nations number employer Parks first aerospace education Pais College SAINT LOUIS UNWERSITY information complete mail Name Address HS Graduation Date Return Parks College Saint Louis University MACahokia IL 62206 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STITT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS servo connector Turn transmitter select op tion will notice will hor izontal scale drawn computer screen calibrated milliseconds moving pointer follows motion transmitter stick see Figure #7 prefer digital read-out pulse length theres also numeric read out measuring incoming pulse length nearest microsecond option serves two purposes can used measure end points stick travel also can used see well transmit ter sticks return neutral after theyve released Let stick snap back neutral take reading slowly return stick neutral see get same reading Move stick opposite direction same good set sticks will typi cally return within few microseconds same neutral setting time either direction measurement solved problem originally thought servo linkage problem systems plane would stay trim problem finally found sticky stick transmitter didnt al ways return same spot after re leased word cautionif select Op tion #7 have receiver connected computer have receiver connected no transmitter running computer will appear lock up nor mal Whats happening computer waiting pulse come User Port get out locked-up mode hold down Run/Stop key tap Re store keys Option #8 Slew Servo allows slowly move servo through its range using arrow keys lower right side keyboard change servo output arm position moving output arm position using option given read-out near est microsecond pulse length servo receiving option can used check servo linearity have large pointer con nected servo output arm protrac tor other means accurately determin ing pointer position could plot curve pulse length horizontal axis servo rotation vertical axis servo truly linear curve plot will turn out perfectly straight line Figure #1 have about hours work $10 can build transmitter checker automated servo testing setup using handful parts inex pensive home computer dont hap pen have Commodore C-64 computer should someone within club does computerized radio/servo checker could make interesting group project something club could make available service during meet ing rainy weekend give mem bers means checking RC systems hope find useful tool Parts List 1 ea Aileron Connector match radio sys tem 1 ea PC Card Edge Connector match Com modore C64* IC Electromcs part #41-804 #41-816 Amphenol part #225-2-12-2-4-1-01 Cinch part #251-12-30-160 1 ea Experimenters Dual IC Board Radio Shack catalog #276-159 1 ea 2N3638 MPS2907 other PNP silicon general purpose small signal transistor Radio Shack catalog #276-2023 1 ea 4700 Ohm A-watt resistor Radio Shack catalog #271-1330 1 ca 22000 Ohm A-watt resistor Radio Shack Catalog #271-1339 Solder wire miscellaneous small hand tools *The cost PC card edge connector lo cal electronics dealer approximately $375 Its also listed part number 12/245E Jameco Electronics catalog costs $149 can reach Jameco Electronics 415 592-8097 write 1355 Shoreway Rd Belmont CA 94002 Janieco has $2000 minimum order may want get few friends together prepare bulk purchase Jameco also requires 5% handling fee $100 minimum Call Ja meco cant find connector locally have handful connectors Ill pro vide $500 first-come basis until supply runs out Please include pre-addressed stamped envelope orders case check has returned software project available Commodore diskette au thor CompuServe No hard copy printout available diskette can obtained sending $500 check money order cover cost disk mailer postage Bernard L Stuecker 2433 Carey Ln Vienna VA 22180 CompuServe subscribers can GO MOD ELNET find program software dowaloading Library 11 com mand BRO KEYSERVO can get CompuServe subscription information calling CompuServe 800 848-8199 AMA member would like free CompuServe subscription kit write Doug Pratt AMA HQ 1810 Samuel Morse Dr Reston VA 22090 ModelNet AMAs computer bulletin board service need information about project please sure include pre addressed stamped envelope query address above RC Soaring/Blakeslee Continued page 43 planes DG-100/428/132/229 DG-200 Acroracer/3 75/[ 106/ 128]/293 DG-200/ 428/119/257 DG-l00/428/143/250 DG 202/500/[139/16 11/216 first DG-100 now 11 years old wings DG-200 conventional con struction 2mm balsa sheeting steel blade joiners others have blue foam cores covered fiberglass obechi made using vacuum-bag technique DG-202 50 142 Model Aviation OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 E ADD $100 auinrn IAIITLJIId 2A UfI R5 Fox 1988 Schneurle SPECIFICATIONS BORE650 STROKE600 DISPLACEMENT199 WEIGHT8 oz RPM 8-4 prop17000 FUEL CONSUMPTION4 az/mm Recent Fox design gives engine performance punch exotic racing motors have engine docile nature has hot restart capability lacking ABC motors Order# StyleCost 12000 Fox 19BBCL$5995 22000 Fox 19BB RC lw/muffler $7995 Fox 25 SPECIFICATIONS BORE680 STROKE680 DISPLACEMENT25 RPM 9-4 prop12000 WEIGHT6 oz FUEL CONSUMPTION4 02/mm Light Powerful Big 25 light 1 9s packs power some 29s superb performer Fox 25 has market long enough thoroughly tried tested Its American made features MKX-type carburetor Order#Style 12500Fox 25 Bushing CL 22500Fox 25 Bushing RC lw/muffler Cost $4995 $6995 meters wingspan 167 ft certainly impres sive machine Can visualize throwing off side mountain Martin says about 202 flies very well due its long wing behaves somewhat sluggishly air still completely aerobatic can flown light breezes wing loading 25 oz/sq ft DGs use Wortmann air foils similar used full-size gliders Contrary popular opinion 11 years back sections perform very well Scale Gliders have flown high wing loading higher speed yield good performance Competition Products foam wing cores guys talk around country agree best wing cores theyve seen come Ed Ber ton Competition Products Florida Ed cuts cores longer normal can sup ply full-size beds ones come cores use pressing wings dreams what Ed says about work ensure quality precision wing cores cut exclusive motor-operated foam-cutting machine Cores exceptionally smooth trailing edges straight sharp can cut size chord within reason taper Maximum wing panel length 72 would impossible stock airfoils chord sizes however stock one-piece E-2 14 Windsong wing cores have templates 31 Eppler air foils 15 Seligs Quabecks others order set custom wing cores simply send set root tip templates along panel length maximum length 72 taper desired prefer will make tem plates additional cost 'Competition Products manufactures two types foam wing products conventional cores new Full-Size construction saddles Con ventional standard cores have around years cut undersized allow wing sheeting usually a / removed top bottom airfoil core can 3/4 1 narrower width chord finished wing means apply adhesive press skins core trailing edge sticking out saddles up inch no support usual result wavy trailing edges Most airfoils used Sailplanes have very delicate trailing edges must kept straight sharp often undercambered main tain airfoils shape obtain perform ance designed profile Keeping 3/4 unsupported trailing edge straight maintaining airfoil very criticalbut always easy Competition Products has answer Full-Size construction saddles Unlike conventional cores cut under sIze Full-Size construction saddles cut same size finished wing chord dimen sion same important airfoil ts exactly same finished wing wing core sheeted placed between Full-Size top bottom saddles finished trailing edge wing flush con struction saddles wings trailing edge fully supported along entire length pan el therefore kept perfectly straight assum ing building surface straight BR Full-Size construction saddles integrity airfoil maintained 100% Full-Size construction saddles must used matching set conventional cores cores come Full-Size saddles just along ridethey used thing BR Full-Size saddles used suspected forces insignfl cant spiral propwash pushing rudder overriding force play sed little test Take North PacJic type rubber model Assemble andfly willfly left turn circles Now cement stab CA extend rudder slotfrom top bottom Put rudder facing down will fly right turn circles Replace rudder longer parallel sheet can slide up down will able find position top forces bottom forces balanced model will fly straight Conclusion orities just plain wrong second popular belief just isnt Reducing crankcase volume 2 cycle model airplane motor will improve its power observations didnt jibe theory devised test fitted unported cylinder piston rear cover could pull piston out motor running thus varying crankcase volum& Result very slight increase RPM crankcase volume increased didnt expect test repeated several other Fox motors le brand Xmotors case maximum RRM achieved somewhat greater case volume stock Conclusion authorities hopping up motor just plain wrong third popularfallacy certain imported motors best can buy simple test can run yourself Buy Fox 40 Standard slightly costly 0540 EP Check both ease starting power idle throttle response Need tell results bock-up test buy Fox 50 its expensive imported counterpart Perform same tests Condusion orities tell buy imported motor just plain wrong Happy Flying 3JA Manufacturing Company 5305 Toweon Avenue Fort Smith AR 72901 Phone 501 848-1656 144 Model Aviation everything told example often told motor torque gyroscopic action causes aircraft want turn left power applied FOX MANUFACTuRING CO 5305 Towson Avenue Fort Smith Arkansas 72901 501 646-1656 5 WE ARE SHOOTING DOWN 4w4 HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only 3D BALSA TRIANGLES 36 1414 25 3838 30 1212 35 3434 45 1~1 55 3116 3718BALSA PLANKS36 452411 51612154 612013200 3014280 31241 23275 261124350 3022225 484423325 565524435 662833495 753734588 8446 13955TAPERED SHEETS36 70142 3143 238 2 68 78383 98 65123120 90 BALSA SHEETS 36 48 1162 33 3322 40 18 2 43 3162 49 14 2 56 1323 37 1203 37 1163 37 48 3323 44 58 18 3 54 71 3163 62 82 14 3 7395 5 163 85110 38 3 66124 123110155 34 3165191 1164 5876 3324 70 94 164 80106 3164 93122 44110134 38 4165225 12 4225261 MATCHED SHEETS 42 3324100 80108 3164120 144131 BALSA SliCKS 3645 1161409 1163810 1161214 332 1410 332 3812 332 1216 18 1808 181411 183812 181210 31631611 316 3817 316 1222 14 1416 143819 41221 143434 14 140 51651671 38 3827 381232 383442 3812 21236 123446 12158 566648 343467 BALSA HOT LINE Cell 1806 745 6394 10 em 6pm Ceefral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 LONE STAR EPOXY 900LSI695 598 lSrrls598 3Orn,598 LIGHT 4-6 LB WOOD36 1323 53 1203 53 1163 53 3323 63 183 77 3163 89 143104 383122 123158 343242 3335 1164 83 3324100 164115 3164133 144158 364236 124322 TRAILING EDGE 36 14132 5161 14 39 3611246 12270 INSTANTGLUE loOSca298 1 oo TIne 298 2oo Thick 550 20 15, 556 BASSWOOD48 316311626 3161438 3163838 31161/246 31163460 1141442 143849 143480 318 31860 3811270 318 31490 121290 1234100 BUNDLE DEALS 20-116336 699 201164361035 20332 336 865 16332436 965 1518336 735 1018 436 695 15316336 920 103164 36 835 1014336 655 1014436 938 10318336 870 5318436 655 51123036 548 512436 1088 10332448 885 518448 500 5316448 600 514448 645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 18 1i8 18 14 18 38 316 3116 114 14 114 318 14 12 318 38 3i8 1i2 1212 1234 1725 2026 2232 2638 3450 4055 4565 4968 6077 6688 7597 SPRUCE TRIANGLES 36 38 3847 121264 34 HARD MAPLE 1 4 38 3838 3812 3834 1 2 34 BIRCH DO WEL S 18 316 14 516 36 IS 40 45 50 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412620 13212445 11612455 1812485 S PLY BIRCH 3132 12 11812 316 12 114 12 38 12 12512 48 588 625 625 625 725 900 LITE PLY 48GROOVED LGMOUNTS 12 Inches 383418140 3834 16132140 1234l3116l45 186155 1812315 ________________________ _____________________ 146 250 1412495 cost s Handling Charge pay UPS Add $250 COD $300 extra PP APO FPO States accept VIsa Master Card personal checks COO 63% lao 111 reuas US currency 0014 MrSirrrunr Wood Order 110 00 I~I1LU [6] i _______________ during sheeting/pressing process Washout can built both conventional cores Full-Size saddles thus assuring both wing panels will exactly same conventional cores Full-Size saddles cut 1 -lb-density white virgin foam Re ground material used Two-pound-density blue foam also available additional cost items shipped UPSno COD cannot shipped PO Box address Conven tional cores Full-Size saddles $45 per set plus UPS Multipanel wings $2250 per pan el plus UPS Custom templates $30 per pair info order sheet send SASE Ed 921 Birdie Way Apollo Beach FL 33570 telephone 813 645-5171 Next month well have scoop Ed skins wings using epoxy resin adhesive ATRCS follow-up August 1988 column re posied ATRCS microprocessor conversion Airtronics Module 75P transmitter may recall amazing system designed being sold byControl Systems Laborator ies Silicon Valley CA As good control system sounded paper theres old saying about proof pudding o reason extremely happy receive re port Satlplaner ATRCS actually worked him following letter Asher Carmichael Daphne AL Asher professional wood worker dealing things like fine furniture clock cases Readers Jim Grays RIC Soaring Digest will recognize Ashers name because has writing very informative entertain ing series articles Sailplane construction techniques Ashers ATRCS report old saying among cabinetmakers mark master craftsman whether make mistakes correct continue make enough unreconcilable gaffes profession possibly considered jour neyman seem transfer same ten dency modeling interests times mistake will present itself seems no way out Occasionally an swer found salvages situation may pearl great price Such case Windsong Having decided fly Windsong pri mary contest ship set about finding out could about plane compatible radio sys tems Some people said build plane equip just like Dodgson says Others said No will missing something dont mix functions electronically Well being tinkerer heart hav ing enough experience know otherwise went out bought Airtronics Module 75P elec tronically control plane dreams read letters put out 75P fliers seemed way go After push switch herer pull lever trimmer could achieve functions Dodgson recommends plumbing Let tell after first few flights just knew made right decision plane performed flawlessly could change throws compensations mixing values etc twist pot reveled upmanship few months placed very first contest Other fliers beginning whisper Better watch Carmichaelhe has hot plane finally taking metal home So said myself Now time really start playing Continued page 149 fliS oia timer perfectly proportioned modeling Curtlss Robin 049 EngInes -channel RIC 4 Wlngspsn ElectrIC Power Optional 12295 511 e103 Very few lull scale aircra8 ideaily nailed model flight appealing old Carliss RoSin horn spruce linen age heaulilulty pmportioned ruhh8r electric glow engines Easy tan SolId trainerlike perlormence Flytine Models Catalog hOt phOne 1783127316683 INE MODELS INC PO Box 2136 Falrlax VirginIa 22031 LL5A December 1988 145 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa TWO NEW FLIGHT BOXES Completely assembled aud tinished 51440 USA Both lop quality wood conslraclion Two large drawers Unique drawer locks Small hoc $8500 plus shipping Large hoo5 12500 ptas shipping includes laeI cumparlmentbatteryypuwnr panel coerparlmenladlaslable tuselage cradles Money hack guarantee send 53 101 specs call 415 3637732 lease nressage Flights Fancy e coma de flag P0 80 1 La Plonda Ca 84820 4 19 4 # / ADULTS $300 CHILDREN 612 $100 w/adflt SENIOR CITIZENS $200 NEW PAVILION & EXPO HALL WESTERN WASHINGTON FAIRGROUNDS POYALLUP WASHINGTON FREE PARKING OC I1 FOR INFO CONTACT DON SWEASY 206 847-1279 PO BOX 73939 PUYALLUP WA 98373 OR BOB BEAN Evenings 206 848-0160 PACIFIC TIME) -4 RC Soaring/Blakeslee Continued page 145 switches levers have budding reputation uphold better unlock full per formance envelope airplane additional setup instructions gath ered through modeling press 7SP worked just greaton ground Push flap trim lever forward pull flap preset switch hack reflex Slide side pot forward spoilerons throttle stick down flaps Its quite easy youre flying 0K Im air Oh no bad sinkhave get Out Lets see flap trim forward left hand flap switch hack right reflex other way around Hey whos flying airplane Oh well Im really used yet Uh-oh already time land Flaps down throttle stick left hand spoiler ons up side pot left hand Oops Im land ing short Quick get everything hack neutral hand Youve got kidding Friends didnt take long realize stuck part limited capabili ties whether own didnt listen Dodgson could have control functions onor adjacent tothe sticks right fingertips continued fly Windsong during contest season benefit what con sider easy control functions did manage place few contests Still thought oc curred Wouldnt nice day answer dreams came mail description ATRCS though would cost seemed like logical way out already 75P re luctant give up some its features switching hack mechanical mixing Send transmitter along $300 California article said problems will solved Tom Mroz Eugene Engelau Control Systems Laboratories designed retrofit 75P called Advanced Technology Radio Control System ATRCS pronounced A-Tracks short Basically digital en coder replaces pots switches computer LCD readout six keypad tons understanding sys tem could everything wanted doand morewith two transmitter sticks three-pole switch Well couldnt wait price seemed high considering what plane already might pearl after gave let tell am glad system turns 75P absolute wonder now equivalent advanced radio world mixing presets available boggle mind easy set up fly well Someone finally given us Glider-guiders elec tronic capabilities manufacturers tantalizing us long system designed Sailplanes panic ularly multichannel ones encoder asks certain questions concerning functions de sired and/or available questions dis played LCD respond yes no set control surface movement use increment/decrement buttons Such things electronic centering travel vol ume mixing kinds presets easily obtained seven templates com puter correspond control con figuration likely encounter F3B flying wings Just pull up LCD away gosetting things up liking can program store setups four different planes same plane dif ferent settings transmitter convenient switch added above flap stick ena bles change another compatible setup during flight real advantage wish have plane programmed different condi tions tasks Flip switch fly can add drop out mixing change con trol surface travel As example have four independent servos flaps ailerons could switch flight between flape rons standard aileron/flaps configuration two functions appeal Windsong spoileron/crow threeposition trailing edge presets functions re quire have independent aileron servos thats small price pay benefit Spoilerons begin actuating flap-stick position choose position flap stick appropriate location enter en coder memory pressing two buttons As lower flaps both ailerons will start rising gether pass threshold position what meant spoilerons ailerons go up act like spoilers Crow means flaps down ailerons upthe effective means glidepath control BR yes can pro gram reverse differential spoilerons along elevator compensation dont like spoilerons time can drop out deleting alternate setup ac tuate setup flight flick alter nate switch three-position trailing edge presets lo cated three-pole switch top trans mitter Push switch forward trailing edge launch modeflaps down say 200 ailerons down 100 combination Center switch neutral cruise setting Push switch back entire trailDecember 1988 149 VINTAGE FORSTER ENGINES Using original casting dies lastest computer control led machi ery RJL producing highest quality lowest priced vintage engines avai able Both engines come complete original reprinted box literature Ignition version equipped clear plastic tank single speed Forster timer Both engines perfect SAM Old Time Stunt events Delivery Dec 88 glow Mar 89 ignition Satisfaction Guaranteedl Add $300 per engine shipping handling Calif residents add sales tax Glow plug spark plug coil condenser included RJL INDUSTRIES PO Box 5 Sierra Madre CA 91024 818 3590016 ing edge reflexed 60 high-speed flying An add-on programmable switch some transmit ters may give last two settings will give elevator compensation appropriate mode ATRCS does though Windsong doesnt need side pot 7SP can now programmed adjust camber along entire trailing edge might advantageous planes hav ing airfoils benefit slight camber changes light lift other trailing edge functions remain effect option mixing gains adjust ments available ATRCS havent really explored yet should pointed out transmitter will work flight packs other Airtronics same frequency course will also work new Airtronics Spectra PCM receivers well standard PPM/FM nice feature extra margin safety Also travel volume readouts percentages makes snap return control surfaces previous positions start playing planess trim settings features ATRCS/7SP system flies just like other proportional radio control sticks trim pots etc work nor mally would takes about two weeks including shipping time CSL work transmitter returned professionally printed instruction manual quite thorough understand able one-year warranty ATRCS components workmanship CSLs address 1361 Fallen Leaf Dr Milpitas CA 95035 tele phone 408 946-4142 Maybe some method madness know ATRCS has blessing Windsong system time has come have inclination mix control functions Windsong other full-function Sail plane electronically dont settle anything less ATRCS Hi-Performance Sailplanes Martin Bamerts ar ticle making wings molds sparked lot interest high-tech Sailplane wing construc tion methods first question people ask can buy materials Therefore glad hear Ron Wagner has just started up Hi-Performance Sailplanes Ron spe cializing materials needed molding vacuum-bagging wings expense out-of-sight minimum orders Rons rundown current offerings 1 HP Cell wing skins Hi-Performance wing skins new product designed replace balsawood skins enhance wing surface quality glass cloth used over blue foam material engineered replace 2mm Rohacel sightly denser 5 lb/cu ft Its thickness 060 15mm means less volume lower-weight wing sheet size 24 x 96 ideal larger Gliders eliminates splicing balsa sheets 2 Three types epoxies Type 1 thinviscosity laminating epoxy suitable bonding lightweight cloths wing skins Type 2 wing-skin-bonding adhesive works well HP Cell blue foam Type 3 recommended structural bonding adhesives first true epoxy adhesives market Epoxies bonding blue foam require certain properties have considered epoxy de velopment Available quart size plus hardener 3 Magnalite carbon laminates Type unidi rectional carbon fiber 007 x 1 x 72 Type 2 same except 014 thick Type 3 tapered 030 root 007 tip 72 long material can custom cut var ious lengths widths 4 Nomex HP honeycomb 3-lb cell-structure honeycomb 080 x 12 x 96 5 Fibergloss cloth 1 4-oz treated E Glass use HP Cell wing skins also stocks 2-oz treated E-Glass 6 Mylar sheets 014 thick laying over wet epoxy/glass during vacuum bagging Mini mum size 48 x 36 Hi-Performance Sailplanes address 17902 NE 156th St Woodinville WA 98072 tele phone 206 487-1721 suggest sending SASE Ron requesting latest price list mention ing exactly what application can prob ably assist getting started path higher-tech higher-performance Sailplanes NSS update Cliff Oliver Secretary/Treasurer Membership up 15% time last year Interest host clubs sponsoring Soar-In competition also up year thanks ef forts Marshall Long anyone interested hosting Soar-In next year start planning now contacting Marshall 824 Garden Meadow Universal City TX 78148 telephone 512 6593337 New year bimonthly publication Sailplane columns being written exclusively F3B Don Edberg Cross-Country Miles Moran fellows have years experience disci plines passing along us lot great formation prospective NSS Handbook has put hold time being need find mat agreeable Everyone involved great ideas opinions time feel handbook ready put place anyone would like free copy Sailplane includes membership application NSS drop line 8151 Broadway San Antonio TX 78209 give call 512 821-6299 As say cooler commercial Thank support League Silent Flight news Sailplaners have achieved Level V account about 1 % total LSF membership 6100 since list now boasts 62 names new Level V members LSF Numbers date achievement No 57Dennis Chall #38338/8/87 No 58Guy Dickes #336010/13/87 No 59Bob McGowan #228610/24/87 No 60Bob Sowder #379511/7/87 No 61Brian Agnew #314012/16/87 No 62Douglas Barry #16444/30/88 Congratulations guys July issue LSF Shortlines went out about 1200 members didnt get want keep up LSF happenings drop postcard name address LSF PO Box 647 Mundelin IL 60060 New monthly magazineSlope Soaring News Lovers Soaring slopes will glad know new journal devoted solely Slope news Slope Soaring News being pub lished out Signal Hill CA Charlie Morey Chuck Korolden Marcie Berriz what Charlie has say about new venture Heres first issue Slope Soaring News #1 see deals RC Slope Soar ing specifically its practiced California say California please dont think snubbing other fliers across US Its just tiny new publication volunteer staff three dont pretend represent Slope Soaring national level wel come contributions readers across US would delighted print interesting 150 Model Aviation Elm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 EAJGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL Now SEE YOUR ORDER NO NITRO CASE Synthetic/CastorBlends 31300055%Byro-Ji 31300065%Premiu 31300088%Premiu 313001010%Byro-Jet 313001110%Premiun 313001210%4 Cycle 313001615%Premium 313001715%4Cyc1eS 313002020%Byro-Jet S 3 13002525%Premium C 313003535%Premium Co 313004545%Premium Co Straight Synthetic 21200055%Byro-Jet Strs 21200065%Premium 212001010%Byro-Jet 212001110%Premium 01515%Premium 5 212002020%Byro-Jet aighi 212002525%Premium ompel 212003535%Premium Compel 2 12004545%Premium Compel Minimum Order Quantity--i Case Byron Originals Inc ACTORY PRICE PER GAL CASE OF 4 1-4 CASES 5 CASES & UP $ 800S 750 800750 860810 900850 900850 900850 10751015 10751015 12501175 1335 1650 1965 7 info anywhere world hope wider recognition will come time now hopelessly local Californians course thats bad innovative ingenious Gliders flying buddies bring slopes weekend newsworthy Slope Soaring News will bring new con cepts forum can share knowledge SSNs first issue lots interesting stuff 16 pages full-size 8 V2 x 11 very well writ ten has photos professionally printed years subscription $1595 Make check Out Charlie Morey send SSN 2601 E 19th St #29 Signal Hill CA 90804 think youll like F3B news As write Team Selection Fi nals coming up two weeks September 1718 Los Angeles course time read contest will have over six weeks ago cant tell made Team until next month latest news about winches ClAM president rescinded new restricted power winch rules adopted April meeting Paris evidently because internal motor bat tery resistance difficult measure first thought wait end means action has stirred up some very strong protest action AMA F3B Team Selec tion Committee Chainnan Don Edberg ClAM F3B Subcommittee Chairman John C Grigg well recommendations AMA Executive Director/CIAJvI Secretary John Worth As date publication issue Model Avi ation situation has resolved F3B program participants Contributing Editor ron Blakeslee will informed AMA HQ staff members further developments RMcM 1988 Team Selection finalists 23 number come four areas around country northern southern California Colorado Illinois finalists Northern CaliforniaBrian Chan Seth Daw son Gene Engelau Rich Spicer Southern CaliforniaMike Bame Don Edberg Gary Ittner Larry Jolly Daryl Perkins Steve Rae Rick Schrameck Joe Wurts ColoradoScott Dukes Bob Edson Mike Hickman Lenny Keer Randy Reynolds Jack Sasson John Wyss IllinoisRich Burnoski Wayne Fredette Jack Hiner Jim McCarthy best luck RC Old-Timers/Mathews Continued page 44 Loreli song Build sometime As can see three-view drawing answering song can challenging model easily built Old-Timer Perhaps complexity explains Barney Snyders much simplified Spook mentioned last column admitted rip-off Mystery Man Ill get suggested modifications rework design since figure anyone capable building wing bit com petent am would suggest however using rule thumb 250 sq wing area u engine displacement choos ing power plant overpower beautiful airplane screaming rate climb such would pure sacrilege opinion Mystery Man full-size plan available No 3A7 Old Time Plan Service 253 No 4th St PO Box 90310 San Jose CA 95109Joe Weathers Aeroneers Joe Weathers founding member San Diego Aero neers 1935 remained active member un til death 49 years later nominated AMA Hall Fame club particu larly through efforts Jim Alaback ducted August 1988 Jim has able obtain vast collection Joes materials has now cataloged re stored drawings photos preserva tion San Diego Aerospace Museum Joes family friends have helpful Jims efforts inasmuch sensed impor tance preserving material future Alaback has arranged Joes unpub lished designs mostly drawn shelf paper traced onto vellum reproducible copies have provided AMA Museum Old Time Plan Service also making copy negatives Joes original photos well newspaper clippings etc total documented design list has now ex ceeded 100 published unpublished planes Among drawings three-view Tubby see column October 1980 annotations indicate Weathers developed model part design proposal fullsized aircraft Obviously nothing came wouldnt its esthetic appeal have vastly greater Aeronca C3 does resemble Aeroneers publishes newsletter best can subscribe $750/year writing Jim Alaback 16634 Diaz Dr San Diego CA 92128 History its artifacts brief overContinued page 154 December 1988 151 BYRONPerformance Blended Fuels ORIGINALSINcF Higher Smoother Running Slut erior Lubrication ualled Rust Protection TENTLY BLENDED specific use 1oesnt stock Byron Originals Fuels order direct E FREE FREIGHT Overseas call shipping quote RETAIL PER GAL $1095 1095 1195 95 5 3310
Edition: Model Aviation - 1988/12
Page Numbers: 42, 43, 142, 144, 145, 149, 150, 151
NEW MULTIPLEX RADIO time read Bob Boomer Beemer R/C West should have FCC approval begin selling new Multiplex Profi MC 3030 nine-channel ra dio radio made Germany transmit ter new top-of-the-line set can thought being third generation RC microcom puter technology follows Multiplexs Profi 2000 1980 Royal MC 1984 Unlike Royal MC transmitter Profi MC 3030 does use removable soft modules program software stored within its integral microcomputer Multiplex calls its software BOSS German Benutzer Orientierte Sender Sprache English means User Oriented Transmitter Language four-line 64-position liquid crystal display communicates user/programmer Geiman Bob will have complete instructions translations explain what transmitter saying Actually programing very simple stall everything airplanereceiver bat tery servosand tell transmit ter name plane setting up will store setups up 15 different planes successively call up 17 fixed concepts templates use standard modeling language like crow/butterfly flaper elevator compensation etc Integral Programmer interconnects superimpos es functions necessary BOSS talks display input instructions using eight keys under plate front transmitter final step set direction servos adjust lengths servo travel adjust mixing ratios between servos Profi MC 3030 transmitter has other features Some ones like six-cell Martin Bamerts fleet scratch-built giant DG Scale Gliders yard home Switzerland Wingspans range 375 50 meters 42 Model Aviation Radio Confrol Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Martin Bamert Speedo 87 Model uses wing-twist roll control designed fun flying mountain slopes would good Racer AMA folks would happier sleek design nose little less pointy Catalog photo new Multiplex Prof i MC 3030 transmitter has bells whis tles Multiplex radios available Beemer R/C West Address column 1 700-mAh battery pack providing nine hours operation built-in battery monitor beeps warn low voltage digital voltage display PCM PPM encoding auto matic backup security memory save set tings mixing arrangements program segments being changed short set corporates much state-of-the-art design youre going find available today Bob cant quote prices until FCC approval obtained give general idea said 3030 would bit Royal MC Expert set much less Profi 2000 replaces interested formation lets hope price list Id sug gest sending large SASE Bob requesting same address Beemer R/C West 7725 E Redfield Road Suite 102 Scottsdale AZ 85260 telephone 602 483-9577 closing clubmate electronics advi sor Kurt Rosner pointed out important dis tinction about radios Namely two parts radio bells whistles transmitter actual radio link between transmitter receiver sophisticated computerized mixing isnt much good plane hit interference What get Multiplex radio system proven work very well 10-kHz frequency-spacing environ ment used Europe years Dont get 1991 planned 20-kHz fre quency spacing US commercial us ers paging systems data transmission etc will broadcasting more heavily right tween frequencies So really must have l0-kHz selectivity receiverwhich Multiplex gives Martin Bamert September 1988 column Martins article make molded wings Sailplanes Feedback has very positive Im happy able show Martins work first love big Scale ships shown two photos taken parents lawn Bern Switzerland Grosseglers giant Glid ers flown high slopes Swiss Alps Since Martin moved temporarily States build something portable answer problem Speedo 87 described September specs Speedo 87 reveal should great F3F Slope Rac ing plane wingspan 945 elevator span 204 fuselage length 518 weight 759 oz wing area 470 sq ft wing loading 1615 oz/sq ft wing airfoil RG 12A-18/90 stab air foil NACA 0006 Martins big birds 135-scale models DG sailplanes made Glaser-Dirks Flugzeubau Germany fuselages 20 meters long Specifications follow given order plane name wingspan meters weight lb wing loading oz/sq ft back front Continued page 142 7f4iVGMFTigerskin4J WHAT DO YOU CALL THE BEST SHEETING MATERIAL FOR FOAM WING CORES Wing Mfg pioneered foam core wing construction early 60s have used everything tangowood 1202 stainless steel sheeting last few years have using pressure laminates evolved R & 0 work Uncle Sam Tigerskins pre-finish high density posterboard material clear laminated plastic film top simply apply contact cement such Styro-Stick adhesive cores end sheeting press sheeting onto cores material pliable can easily wrap around leading edges Tigerskins CHECK THESE FEATURES Superior strength weight ratio Superior bond capability foam 001 per sq temperature stability Smooth high gloss finish Superior resistance nitro fuel Superior resistance weather Easy apply Low low cost 01/64 x 23 x 35 size Comes following colors Waco Red Polar White Insignia Blue Sun Yellow $495 PER SHEET PkA~g7 8t5t ORDERING Send check money order required amount Add $395 shipping 1 6 sheets Add $749 shipping 7 12 sheets SEND TO Wing Mfg PO Box 33 Crystal Lake IL 60014 Illinois Residents add 6 1/20/s sales tax Super Styro-Stick wing skin adhesive $5OB 16 oz Can Item 4601 can does wing up 70 No extra shipping cost ordered Tigerskins See Tigrskins Chicago Model & Hobby Show Booth 1735 Aerospace Parks Means Business. Degrees Careers Men Women Degree Programs Aeronautical Administration Aerospace Engineering Aircraft Maintenance Engineering Aircraft Maintenance Management Airway Science Aviation Science/Professional Pilot Avionics Electrical Engineering Logistics Meteorology Transportation Travel Tourism Certificates Airframe Powerplant Technician Logistics Technology Write Call Admissions 618-337-7500 1-800-851-3048 1-800-851-7878 In Illinois Ii41j SEND $350 FOR CATALOG cityStateZip TelephoneSoc Security No Major December 1988 43 Competition Products foam wing cores availabale Full-Size saddles Top core L sits foam saddle cut Note trailing edges Right core R Full-Size saddle Extra chord saddle supports TE sheeting during laminating pro cess Theres info column Aerospace nations number employer Parks first aerospace education Pais College SAINT LOUIS UNWERSITY information complete mail Name Address HS Graduation Date Return Parks College Saint Louis University MACahokia IL 62206 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STITT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS servo connector Turn transmitter select op tion will notice will hor izontal scale drawn computer screen calibrated milliseconds moving pointer follows motion transmitter stick see Figure #7 prefer digital read-out pulse length theres also numeric read out measuring incoming pulse length nearest microsecond option serves two purposes can used measure end points stick travel also can used see well transmit ter sticks return neutral after theyve released Let stick snap back neutral take reading slowly return stick neutral see get same reading Move stick opposite direction same good set sticks will typi cally return within few microseconds same neutral setting time either direction measurement solved problem originally thought servo linkage problem systems plane would stay trim problem finally found sticky stick transmitter didnt al ways return same spot after re leased word cautionif select Op tion #7 have receiver connected computer have receiver connected no transmitter running computer will appear lock up nor mal Whats happening computer waiting pulse come User Port get out locked-up mode hold down Run/Stop key tap Re store keys Option #8 Slew Servo allows slowly move servo through its range using arrow keys lower right side keyboard change servo output arm position moving output arm position using option given read-out near est microsecond pulse length servo receiving option can used check servo linearity have large pointer con nected servo output arm protrac tor other means accurately determin ing pointer position could plot curve pulse length horizontal axis servo rotation vertical axis servo truly linear curve plot will turn out perfectly straight line Figure #1 have about hours work $10 can build transmitter checker automated servo testing setup using handful parts inex pensive home computer dont hap pen have Commodore C-64 computer should someone within club does computerized radio/servo checker could make interesting group project something club could make available service during meet ing rainy weekend give mem bers means checking RC systems hope find useful tool Parts List 1 ea Aileron Connector match radio sys tem 1 ea PC Card Edge Connector match Com modore C64* IC Electromcs part #41-804 #41-816 Amphenol part #225-2-12-2-4-1-01 Cinch part #251-12-30-160 1 ea Experimenters Dual IC Board Radio Shack catalog #276-159 1 ea 2N3638 MPS2907 other PNP silicon general purpose small signal transistor Radio Shack catalog #276-2023 1 ea 4700 Ohm A-watt resistor Radio Shack catalog #271-1330 1 ca 22000 Ohm A-watt resistor Radio Shack Catalog #271-1339 Solder wire miscellaneous small hand tools *The cost PC card edge connector lo cal electronics dealer approximately $375 Its also listed part number 12/245E Jameco Electronics catalog costs $149 can reach Jameco Electronics 415 592-8097 write 1355 Shoreway Rd Belmont CA 94002 Janieco has $2000 minimum order may want get few friends together prepare bulk purchase Jameco also requires 5% handling fee $100 minimum Call Ja meco cant find connector locally have handful connectors Ill pro vide $500 first-come basis until supply runs out Please include pre-addressed stamped envelope orders case check has returned software project available Commodore diskette au thor CompuServe No hard copy printout available diskette can obtained sending $500 check money order cover cost disk mailer postage Bernard L Stuecker 2433 Carey Ln Vienna VA 22180 CompuServe subscribers can GO MOD ELNET find program software dowaloading Library 11 com mand BRO KEYSERVO can get CompuServe subscription information calling CompuServe 800 848-8199 AMA member would like free CompuServe subscription kit write Doug Pratt AMA HQ 1810 Samuel Morse Dr Reston VA 22090 ModelNet AMAs computer bulletin board service need information about project please sure include pre addressed stamped envelope query address above RC Soaring/Blakeslee Continued page 43 planes DG-100/428/132/229 DG-200 Acroracer/3 75/[ 106/ 128]/293 DG-200/ 428/119/257 DG-l00/428/143/250 DG 202/500/[139/16 11/216 first DG-100 now 11 years old wings DG-200 conventional con struction 2mm balsa sheeting steel blade joiners others have blue foam cores covered fiberglass obechi made using vacuum-bag technique DG-202 50 142 Model Aviation OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 E ADD $100 auinrn IAIITLJIId 2A UfI R5 Fox 1988 Schneurle SPECIFICATIONS BORE650 STROKE600 DISPLACEMENT199 WEIGHT8 oz RPM 8-4 prop17000 FUEL CONSUMPTION4 az/mm Recent Fox design gives engine performance punch exotic racing motors have engine docile nature has hot restart capability lacking ABC motors Order# StyleCost 12000 Fox 19BBCL$5995 22000 Fox 19BB RC lw/muffler $7995 Fox 25 SPECIFICATIONS BORE680 STROKE680 DISPLACEMENT25 RPM 9-4 prop12000 WEIGHT6 oz FUEL CONSUMPTION4 02/mm Light Powerful Big 25 light 1 9s packs power some 29s superb performer Fox 25 has market long enough thoroughly tried tested Its American made features MKX-type carburetor Order#Style 12500Fox 25 Bushing CL 22500Fox 25 Bushing RC lw/muffler Cost $4995 $6995 meters wingspan 167 ft certainly impres sive machine Can visualize throwing off side mountain Martin says about 202 flies very well due its long wing behaves somewhat sluggishly air still completely aerobatic can flown light breezes wing loading 25 oz/sq ft DGs use Wortmann air foils similar used full-size gliders Contrary popular opinion 11 years back sections perform very well Scale Gliders have flown high wing loading higher speed yield good performance Competition Products foam wing cores guys talk around country agree best wing cores theyve seen come Ed Ber ton Competition Products Florida Ed cuts cores longer normal can sup ply full-size beds ones come cores use pressing wings dreams what Ed says about work ensure quality precision wing cores cut exclusive motor-operated foam-cutting machine Cores exceptionally smooth trailing edges straight sharp can cut size chord within reason taper Maximum wing panel length 72 would impossible stock airfoils chord sizes however stock one-piece E-2 14 Windsong wing cores have templates 31 Eppler air foils 15 Seligs Quabecks others order set custom wing cores simply send set root tip templates along panel length maximum length 72 taper desired prefer will make tem plates additional cost 'Competition Products manufactures two types foam wing products conventional cores new Full-Size construction saddles Con ventional standard cores have around years cut undersized allow wing sheeting usually a / removed top bottom airfoil core can 3/4 1 narrower width chord finished wing means apply adhesive press skins core trailing edge sticking out saddles up inch no support usual result wavy trailing edges Most airfoils used Sailplanes have very delicate trailing edges must kept straight sharp often undercambered main tain airfoils shape obtain perform ance designed profile Keeping 3/4 unsupported trailing edge straight maintaining airfoil very criticalbut always easy Competition Products has answer Full-Size construction saddles Unlike conventional cores cut under sIze Full-Size construction saddles cut same size finished wing chord dimen sion same important airfoil ts exactly same finished wing wing core sheeted placed between Full-Size top bottom saddles finished trailing edge wing flush con struction saddles wings trailing edge fully supported along entire length pan el therefore kept perfectly straight assum ing building surface straight BR Full-Size construction saddles integrity airfoil maintained 100% Full-Size construction saddles must used matching set conventional cores cores come Full-Size saddles just along ridethey used thing BR Full-Size saddles used suspected forces insignfl cant spiral propwash pushing rudder overriding force play sed little test Take North PacJic type rubber model Assemble andfly willfly left turn circles Now cement stab CA extend rudder slotfrom top bottom Put rudder facing down will fly right turn circles Replace rudder longer parallel sheet can slide up down will able find position top forces bottom forces balanced model will fly straight Conclusion orities just plain wrong second popular belief just isnt Reducing crankcase volume 2 cycle model airplane motor will improve its power observations didnt jibe theory devised test fitted unported cylinder piston rear cover could pull piston out motor running thus varying crankcase volum& Result very slight increase RPM crankcase volume increased didnt expect test repeated several other Fox motors le brand Xmotors case maximum RRM achieved somewhat greater case volume stock Conclusion authorities hopping up motor just plain wrong third popularfallacy certain imported motors best can buy simple test can run yourself Buy Fox 40 Standard slightly costly 0540 EP Check both ease starting power idle throttle response Need tell results bock-up test buy Fox 50 its expensive imported counterpart Perform same tests Condusion orities tell buy imported motor just plain wrong Happy Flying 3JA Manufacturing Company 5305 Toweon Avenue Fort Smith AR 72901 Phone 501 848-1656 144 Model Aviation everything told example often told motor torque gyroscopic action causes aircraft want turn left power applied FOX MANUFACTuRING CO 5305 Towson Avenue Fort Smith Arkansas 72901 501 646-1656 5 WE ARE SHOOTING DOWN 4w4 HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only 3D BALSA TRIANGLES 36 1414 25 3838 30 1212 35 3434 45 1~1 55 3116 3718BALSA PLANKS36 452411 51612154 612013200 3014280 31241 23275 261124350 3022225 484423325 565524435 662833495 753734588 8446 13955TAPERED SHEETS36 70142 3143 238 2 68 78383 98 65123120 90 BALSA SHEETS 36 48 1162 33 3322 40 18 2 43 3162 49 14 2 56 1323 37 1203 37 1163 37 48 3323 44 58 18 3 54 71 3163 62 82 14 3 7395 5 163 85110 38 3 66124 123110155 34 3165191 1164 5876 3324 70 94 164 80106 3164 93122 44110134 38 4165225 12 4225261 MATCHED SHEETS 42 3324100 80108 3164120 144131 BALSA SliCKS 3645 1161409 1163810 1161214 332 1410 332 3812 332 1216 18 1808 181411 183812 181210 31631611 316 3817 316 1222 14 1416 143819 41221 143434 14 140 51651671 38 3827 381232 383442 3812 21236 123446 12158 566648 343467 BALSA HOT LINE Cell 1806 745 6394 10 em 6pm Ceefral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 LONE STAR EPOXY 900LSI695 598 lSrrls598 3Orn,598 LIGHT 4-6 LB WOOD36 1323 53 1203 53 1163 53 3323 63 183 77 3163 89 143104 383122 123158 343242 3335 1164 83 3324100 164115 3164133 144158 364236 124322 TRAILING EDGE 36 14132 5161 14 39 3611246 12270 INSTANTGLUE loOSca298 1 oo TIne 298 2oo Thick 550 20 15, 556 BASSWOOD48 316311626 3161438 3163838 31161/246 31163460 1141442 143849 143480 318 31860 3811270 318 31490 121290 1234100 BUNDLE DEALS 20-116336 699 201164361035 20332 336 865 16332436 965 1518336 735 1018 436 695 15316336 920 103164 36 835 1014336 655 1014436 938 10318336 870 5318436 655 51123036 548 512436 1088 10332448 885 518448 500 5316448 600 514448 645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 18 1i8 18 14 18 38 316 3116 114 14 114 318 14 12 318 38 3i8 1i2 1212 1234 1725 2026 2232 2638 3450 4055 4565 4968 6077 6688 7597 SPRUCE TRIANGLES 36 38 3847 121264 34 HARD MAPLE 1 4 38 3838 3812 3834 1 2 34 BIRCH DO WEL S 18 316 14 516 36 IS 40 45 50 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412620 13212445 11612455 1812485 S PLY BIRCH 3132 12 11812 316 12 114 12 38 12 12512 48 588 625 625 625 725 900 LITE PLY 48GROOVED LGMOUNTS 12 Inches 383418140 3834 16132140 1234l3116l45 186155 1812315 ________________________ _____________________ 146 250 1412495 cost s Handling Charge pay UPS Add $250 COD $300 extra PP APO FPO States accept VIsa Master Card personal checks COO 63% lao 111 reuas US currency 0014 MrSirrrunr Wood Order 110 00 I~I1LU [6] i _______________ during sheeting/pressing process Washout can built both conventional cores Full-Size saddles thus assuring both wing panels will exactly same conventional cores Full-Size saddles cut 1 -lb-density white virgin foam Re ground material used Two-pound-density blue foam also available additional cost items shipped UPSno COD cannot shipped PO Box address Conven tional cores Full-Size saddles $45 per set plus UPS Multipanel wings $2250 per pan el plus UPS Custom templates $30 per pair info order sheet send SASE Ed 921 Birdie Way Apollo Beach FL 33570 telephone 813 645-5171 Next month well have scoop Ed skins wings using epoxy resin adhesive ATRCS follow-up August 1988 column re posied ATRCS microprocessor conversion Airtronics Module 75P transmitter may recall amazing system designed being sold byControl Systems Laborator ies Silicon Valley CA As good control system sounded paper theres old saying about proof pudding o reason extremely happy receive re port Satlplaner ATRCS actually worked him following letter Asher Carmichael Daphne AL Asher professional wood worker dealing things like fine furniture clock cases Readers Jim Grays RIC Soaring Digest will recognize Ashers name because has writing very informative entertain ing series articles Sailplane construction techniques Ashers ATRCS report old saying among cabinetmakers mark master craftsman whether make mistakes correct continue make enough unreconcilable gaffes profession possibly considered jour neyman seem transfer same ten dency modeling interests times mistake will present itself seems no way out Occasionally an swer found salvages situation may pearl great price Such case Windsong Having decided fly Windsong pri mary contest ship set about finding out could about plane compatible radio sys tems Some people said build plane equip just like Dodgson says Others said No will missing something dont mix functions electronically Well being tinkerer heart hav ing enough experience know otherwise went out bought Airtronics Module 75P elec tronically control plane dreams read letters put out 75P fliers seemed way go After push switch herer pull lever trimmer could achieve functions Dodgson recommends plumbing Let tell after first few flights just knew made right decision plane performed flawlessly could change throws compensations mixing values etc twist pot reveled upmanship few months placed very first contest Other fliers beginning whisper Better watch Carmichaelhe has hot plane finally taking metal home So said myself Now time really start playing Continued page 149 fliS oia timer perfectly proportioned modeling Curtlss Robin 049 EngInes -channel RIC 4 Wlngspsn ElectrIC Power Optional 12295 511 e103 Very few lull scale aircra8 ideaily nailed model flight appealing old Carliss RoSin horn spruce linen age heaulilulty pmportioned ruhh8r electric glow engines Easy tan SolId trainerlike perlormence Flytine Models Catalog hOt phOne 1783127316683 INE MODELS INC PO Box 2136 Falrlax VirginIa 22031 LL5A December 1988 145 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa TWO NEW FLIGHT BOXES Completely assembled aud tinished 51440 USA Both lop quality wood conslraclion Two large drawers Unique drawer locks Small hoc $8500 plus shipping Large hoo5 12500 ptas shipping includes laeI cumparlmentbatteryypuwnr panel coerparlmenladlaslable tuselage cradles Money hack guarantee send 53 101 specs call 415 3637732 lease nressage Flights Fancy e coma de flag P0 80 1 La Plonda Ca 84820 4 19 4 # / ADULTS $300 CHILDREN 612 $100 w/adflt SENIOR CITIZENS $200 NEW PAVILION & EXPO HALL WESTERN WASHINGTON FAIRGROUNDS POYALLUP WASHINGTON FREE PARKING OC I1 FOR INFO CONTACT DON SWEASY 206 847-1279 PO BOX 73939 PUYALLUP WA 98373 OR BOB BEAN Evenings 206 848-0160 PACIFIC TIME) -4 RC Soaring/Blakeslee Continued page 145 switches levers have budding reputation uphold better unlock full per formance envelope airplane additional setup instructions gath ered through modeling press 7SP worked just greaton ground Push flap trim lever forward pull flap preset switch hack reflex Slide side pot forward spoilerons throttle stick down flaps Its quite easy youre flying 0K Im air Oh no bad sinkhave get Out Lets see flap trim forward left hand flap switch hack right reflex other way around Hey whos flying airplane Oh well Im really used yet Uh-oh already time land Flaps down throttle stick left hand spoiler ons up side pot left hand Oops Im land ing short Quick get everything hack neutral hand Youve got kidding Friends didnt take long realize stuck part limited capabili ties whether own didnt listen Dodgson could have control functions onor adjacent tothe sticks right fingertips continued fly Windsong during contest season benefit what con sider easy control functions did manage place few contests Still thought oc curred Wouldnt nice day answer dreams came mail description ATRCS though would cost seemed like logical way out already 75P re luctant give up some its features switching hack mechanical mixing Send transmitter along $300 California article said problems will solved Tom Mroz Eugene Engelau Control Systems Laboratories designed retrofit 75P called Advanced Technology Radio Control System ATRCS pronounced A-Tracks short Basically digital en coder replaces pots switches computer LCD readout six keypad tons understanding sys tem could everything wanted doand morewith two transmitter sticks three-pole switch Well couldnt wait price seemed high considering what plane already might pearl after gave let tell am glad system turns 75P absolute wonder now equivalent advanced radio world mixing presets available boggle mind easy set up fly well Someone finally given us Glider-guiders elec tronic capabilities manufacturers tantalizing us long system designed Sailplanes panic ularly multichannel ones encoder asks certain questions concerning functions de sired and/or available questions dis played LCD respond yes no set control surface movement use increment/decrement buttons Such things electronic centering travel vol ume mixing kinds presets easily obtained seven templates com puter correspond control con figuration likely encounter F3B flying wings Just pull up LCD away gosetting things up liking can program store setups four different planes same plane dif ferent settings transmitter convenient switch added above flap stick ena bles change another compatible setup during flight real advantage wish have plane programmed different condi tions tasks Flip switch fly can add drop out mixing change con trol surface travel As example have four independent servos flaps ailerons could switch flight between flape rons standard aileron/flaps configuration two functions appeal Windsong spoileron/crow threeposition trailing edge presets functions re quire have independent aileron servos thats small price pay benefit Spoilerons begin actuating flap-stick position choose position flap stick appropriate location enter en coder memory pressing two buttons As lower flaps both ailerons will start rising gether pass threshold position what meant spoilerons ailerons go up act like spoilers Crow means flaps down ailerons upthe effective means glidepath control BR yes can pro gram reverse differential spoilerons along elevator compensation dont like spoilerons time can drop out deleting alternate setup ac tuate setup flight flick alter nate switch three-position trailing edge presets lo cated three-pole switch top trans mitter Push switch forward trailing edge launch modeflaps down say 200 ailerons down 100 combination Center switch neutral cruise setting Push switch back entire trailDecember 1988 149 VINTAGE FORSTER ENGINES Using original casting dies lastest computer control led machi ery RJL producing highest quality lowest priced vintage engines avai able Both engines come complete original reprinted box literature Ignition version equipped clear plastic tank single speed Forster timer Both engines perfect SAM Old Time Stunt events Delivery Dec 88 glow Mar 89 ignition Satisfaction Guaranteedl Add $300 per engine shipping handling Calif residents add sales tax Glow plug spark plug coil condenser included RJL INDUSTRIES PO Box 5 Sierra Madre CA 91024 818 3590016 ing edge reflexed 60 high-speed flying An add-on programmable switch some transmit ters may give last two settings will give elevator compensation appropriate mode ATRCS does though Windsong doesnt need side pot 7SP can now programmed adjust camber along entire trailing edge might advantageous planes hav ing airfoils benefit slight camber changes light lift other trailing edge functions remain effect option mixing gains adjust ments available ATRCS havent really explored yet should pointed out transmitter will work flight packs other Airtronics same frequency course will also work new Airtronics Spectra PCM receivers well standard PPM/FM nice feature extra margin safety Also travel volume readouts percentages makes snap return control surfaces previous positions start playing planess trim settings features ATRCS/7SP system flies just like other proportional radio control sticks trim pots etc work nor mally would takes about two weeks including shipping time CSL work transmitter returned professionally printed instruction manual quite thorough understand able one-year warranty ATRCS components workmanship CSLs address 1361 Fallen Leaf Dr Milpitas CA 95035 tele phone 408 946-4142 Maybe some method madness know ATRCS has blessing Windsong system time has come have inclination mix control functions Windsong other full-function Sail plane electronically dont settle anything less ATRCS Hi-Performance Sailplanes Martin Bamerts ar ticle making wings molds sparked lot interest high-tech Sailplane wing construc tion methods first question people ask can buy materials Therefore glad hear Ron Wagner has just started up Hi-Performance Sailplanes Ron spe cializing materials needed molding vacuum-bagging wings expense out-of-sight minimum orders Rons rundown current offerings 1 HP Cell wing skins Hi-Performance wing skins new product designed replace balsawood skins enhance wing surface quality glass cloth used over blue foam material engineered replace 2mm Rohacel sightly denser 5 lb/cu ft Its thickness 060 15mm means less volume lower-weight wing sheet size 24 x 96 ideal larger Gliders eliminates splicing balsa sheets 2 Three types epoxies Type 1 thinviscosity laminating epoxy suitable bonding lightweight cloths wing skins Type 2 wing-skin-bonding adhesive works well HP Cell blue foam Type 3 recommended structural bonding adhesives first true epoxy adhesives market Epoxies bonding blue foam require certain properties have considered epoxy de velopment Available quart size plus hardener 3 Magnalite carbon laminates Type unidi rectional carbon fiber 007 x 1 x 72 Type 2 same except 014 thick Type 3 tapered 030 root 007 tip 72 long material can custom cut var ious lengths widths 4 Nomex HP honeycomb 3-lb cell-structure honeycomb 080 x 12 x 96 5 Fibergloss cloth 1 4-oz treated E Glass use HP Cell wing skins also stocks 2-oz treated E-Glass 6 Mylar sheets 014 thick laying over wet epoxy/glass during vacuum bagging Mini mum size 48 x 36 Hi-Performance Sailplanes address 17902 NE 156th St Woodinville WA 98072 tele phone 206 487-1721 suggest sending SASE Ron requesting latest price list mention ing exactly what application can prob ably assist getting started path higher-tech higher-performance Sailplanes NSS update Cliff Oliver Secretary/Treasurer Membership up 15% time last year Interest host clubs sponsoring Soar-In competition also up year thanks ef forts Marshall Long anyone interested hosting Soar-In next year start planning now contacting Marshall 824 Garden Meadow Universal City TX 78148 telephone 512 6593337 New year bimonthly publication Sailplane columns being written exclusively F3B Don Edberg Cross-Country Miles Moran fellows have years experience disci plines passing along us lot great formation prospective NSS Handbook has put hold time being need find mat agreeable Everyone involved great ideas opinions time feel handbook ready put place anyone would like free copy Sailplane includes membership application NSS drop line 8151 Broadway San Antonio TX 78209 give call 512 821-6299 As say cooler commercial Thank support League Silent Flight news Sailplaners have achieved Level V account about 1 % total LSF membership 6100 since list now boasts 62 names new Level V members LSF Numbers date achievement No 57Dennis Chall #38338/8/87 No 58Guy Dickes #336010/13/87 No 59Bob McGowan #228610/24/87 No 60Bob Sowder #379511/7/87 No 61Brian Agnew #314012/16/87 No 62Douglas Barry #16444/30/88 Congratulations guys July issue LSF Shortlines went out about 1200 members didnt get want keep up LSF happenings drop postcard name address LSF PO Box 647 Mundelin IL 60060 New monthly magazineSlope Soaring News Lovers Soaring slopes will glad know new journal devoted solely Slope news Slope Soaring News being pub lished out Signal Hill CA Charlie Morey Chuck Korolden Marcie Berriz what Charlie has say about new venture Heres first issue Slope Soaring News #1 see deals RC Slope Soar ing specifically its practiced California say California please dont think snubbing other fliers across US Its just tiny new publication volunteer staff three dont pretend represent Slope Soaring national level wel come contributions readers across US would delighted print interesting 150 Model Aviation Elm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 EAJGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL Now SEE YOUR ORDER NO NITRO CASE Synthetic/CastorBlends 31300055%Byro-Ji 31300065%Premiu 31300088%Premiu 313001010%Byro-Jet 313001110%Premiun 313001210%4 Cycle 313001615%Premium 313001715%4Cyc1eS 313002020%Byro-Jet S 3 13002525%Premium C 313003535%Premium Co 313004545%Premium Co Straight Synthetic 21200055%Byro-Jet Strs 21200065%Premium 212001010%Byro-Jet 212001110%Premium 01515%Premium 5 212002020%Byro-Jet aighi 212002525%Premium ompel 212003535%Premium Compel 2 12004545%Premium Compel Minimum Order Quantity--i Case Byron Originals Inc ACTORY PRICE PER GAL CASE OF 4 1-4 CASES 5 CASES & UP $ 800S 750 800750 860810 900850 900850 900850 10751015 10751015 12501175 1335 1650 1965 7 info anywhere world hope wider recognition will come time now hopelessly local Californians course thats bad innovative ingenious Gliders flying buddies bring slopes weekend newsworthy Slope Soaring News will bring new con cepts forum can share knowledge SSNs first issue lots interesting stuff 16 pages full-size 8 V2 x 11 very well writ ten has photos professionally printed years subscription $1595 Make check Out Charlie Morey send SSN 2601 E 19th St #29 Signal Hill CA 90804 think youll like F3B news As write Team Selection Fi nals coming up two weeks September 1718 Los Angeles course time read contest will have over six weeks ago cant tell made Team until next month latest news about winches ClAM president rescinded new restricted power winch rules adopted April meeting Paris evidently because internal motor bat tery resistance difficult measure first thought wait end means action has stirred up some very strong protest action AMA F3B Team Selec tion Committee Chainnan Don Edberg ClAM F3B Subcommittee Chairman John C Grigg well recommendations AMA Executive Director/CIAJvI Secretary John Worth As date publication issue Model Avi ation situation has resolved F3B program participants Contributing Editor ron Blakeslee will informed AMA HQ staff members further developments RMcM 1988 Team Selection finalists 23 number come four areas around country northern southern California Colorado Illinois finalists Northern CaliforniaBrian Chan Seth Daw son Gene Engelau Rich Spicer Southern CaliforniaMike Bame Don Edberg Gary Ittner Larry Jolly Daryl Perkins Steve Rae Rick Schrameck Joe Wurts ColoradoScott Dukes Bob Edson Mike Hickman Lenny Keer Randy Reynolds Jack Sasson John Wyss IllinoisRich Burnoski Wayne Fredette Jack Hiner Jim McCarthy best luck RC Old-Timers/Mathews Continued page 44 Loreli song Build sometime As can see three-view drawing answering song can challenging model easily built Old-Timer Perhaps complexity explains Barney Snyders much simplified Spook mentioned last column admitted rip-off Mystery Man Ill get suggested modifications rework design since figure anyone capable building wing bit com petent am would suggest however using rule thumb 250 sq wing area u engine displacement choos ing power plant overpower beautiful airplane screaming rate climb such would pure sacrilege opinion Mystery Man full-size plan available No 3A7 Old Time Plan Service 253 No 4th St PO Box 90310 San Jose CA 95109Joe Weathers Aeroneers Joe Weathers founding member San Diego Aero neers 1935 remained active member un til death 49 years later nominated AMA Hall Fame club particu larly through efforts Jim Alaback ducted August 1988 Jim has able obtain vast collection Joes materials has now cataloged re stored drawings photos preserva tion San Diego Aerospace Museum Joes family friends have helpful Jims efforts inasmuch sensed impor tance preserving material future Alaback has arranged Joes unpub lished designs mostly drawn shelf paper traced onto vellum reproducible copies have provided AMA Museum Old Time Plan Service also making copy negatives Joes original photos well newspaper clippings etc total documented design list has now ex ceeded 100 published unpublished planes Among drawings three-view Tubby see column October 1980 annotations indicate Weathers developed model part design proposal fullsized aircraft Obviously nothing came wouldnt its esthetic appeal have vastly greater Aeronca C3 does resemble Aeroneers publishes newsletter best can subscribe $750/year writing Jim Alaback 16634 Diaz Dr San Diego CA 92128 History its artifacts brief overContinued page 154 December 1988 151 BYRONPerformance Blended Fuels ORIGINALSINcF Higher Smoother Running Slut erior Lubrication ualled Rust Protection TENTLY BLENDED specific use 1oesnt stock Byron Originals Fuels order direct E FREE FREIGHT Overseas call shipping quote RETAIL PER GAL $1095 1095 1195 95 5 3310
Edition: Model Aviation - 1988/12
Page Numbers: 42, 43, 142, 144, 145, 149, 150, 151
NEW MULTIPLEX RADIO time read Bob Boomer Beemer R/C West should have FCC approval begin selling new Multiplex Profi MC 3030 nine-channel ra dio radio made Germany transmit ter new top-of-the-line set can thought being third generation RC microcom puter technology follows Multiplexs Profi 2000 1980 Royal MC 1984 Unlike Royal MC transmitter Profi MC 3030 does use removable soft modules program software stored within its integral microcomputer Multiplex calls its software BOSS German Benutzer Orientierte Sender Sprache English means User Oriented Transmitter Language four-line 64-position liquid crystal display communicates user/programmer Geiman Bob will have complete instructions translations explain what transmitter saying Actually programing very simple stall everything airplanereceiver bat tery servosand tell transmit ter name plane setting up will store setups up 15 different planes successively call up 17 fixed concepts templates use standard modeling language like crow/butterfly flaper elevator compensation etc Integral Programmer interconnects superimpos es functions necessary BOSS talks display input instructions using eight keys under plate front transmitter final step set direction servos adjust lengths servo travel adjust mixing ratios between servos Profi MC 3030 transmitter has other features Some ones like six-cell Martin Bamerts fleet scratch-built giant DG Scale Gliders yard home Switzerland Wingspans range 375 50 meters 42 Model Aviation Radio Confrol Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Martin Bamert Speedo 87 Model uses wing-twist roll control designed fun flying mountain slopes would good Racer AMA folks would happier sleek design nose little less pointy Catalog photo new Multiplex Prof i MC 3030 transmitter has bells whis tles Multiplex radios available Beemer R/C West Address column 1 700-mAh battery pack providing nine hours operation built-in battery monitor beeps warn low voltage digital voltage display PCM PPM encoding auto matic backup security memory save set tings mixing arrangements program segments being changed short set corporates much state-of-the-art design youre going find available today Bob cant quote prices until FCC approval obtained give general idea said 3030 would bit Royal MC Expert set much less Profi 2000 replaces interested formation lets hope price list Id sug gest sending large SASE Bob requesting same address Beemer R/C West 7725 E Redfield Road Suite 102 Scottsdale AZ 85260 telephone 602 483-9577 closing clubmate electronics advi sor Kurt Rosner pointed out important dis tinction about radios Namely two parts radio bells whistles transmitter actual radio link between transmitter receiver sophisticated computerized mixing isnt much good plane hit interference What get Multiplex radio system proven work very well 10-kHz frequency-spacing environ ment used Europe years Dont get 1991 planned 20-kHz fre quency spacing US commercial us ers paging systems data transmission etc will broadcasting more heavily right tween frequencies So really must have l0-kHz selectivity receiverwhich Multiplex gives Martin Bamert September 1988 column Martins article make molded wings Sailplanes Feedback has very positive Im happy able show Martins work first love big Scale ships shown two photos taken parents lawn Bern Switzerland Grosseglers giant Glid ers flown high slopes Swiss Alps Since Martin moved temporarily States build something portable answer problem Speedo 87 described September specs Speedo 87 reveal should great F3F Slope Rac ing plane wingspan 945 elevator span 204 fuselage length 518 weight 759 oz wing area 470 sq ft wing loading 1615 oz/sq ft wing airfoil RG 12A-18/90 stab air foil NACA 0006 Martins big birds 135-scale models DG sailplanes made Glaser-Dirks Flugzeubau Germany fuselages 20 meters long Specifications follow given order plane name wingspan meters weight lb wing loading oz/sq ft back front Continued page 142 7f4iVGMFTigerskin4J WHAT DO YOU CALL THE BEST SHEETING MATERIAL FOR FOAM WING CORES Wing Mfg pioneered foam core wing construction early 60s have used everything tangowood 1202 stainless steel sheeting last few years have using pressure laminates evolved R & 0 work Uncle Sam Tigerskins pre-finish high density posterboard material clear laminated plastic film top simply apply contact cement such Styro-Stick adhesive cores end sheeting press sheeting onto cores material pliable can easily wrap around leading edges Tigerskins CHECK THESE FEATURES Superior strength weight ratio Superior bond capability foam 001 per sq temperature stability Smooth high gloss finish Superior resistance nitro fuel Superior resistance weather Easy apply Low low cost 01/64 x 23 x 35 size Comes following colors Waco Red Polar White Insignia Blue Sun Yellow $495 PER SHEET PkA~g7 8t5t ORDERING Send check money order required amount Add $395 shipping 1 6 sheets Add $749 shipping 7 12 sheets SEND TO Wing Mfg PO Box 33 Crystal Lake IL 60014 Illinois Residents add 6 1/20/s sales tax Super Styro-Stick wing skin adhesive $5OB 16 oz Can Item 4601 can does wing up 70 No extra shipping cost ordered Tigerskins See Tigrskins Chicago Model & Hobby Show Booth 1735 Aerospace Parks Means Business. Degrees Careers Men Women Degree Programs Aeronautical Administration Aerospace Engineering Aircraft Maintenance Engineering Aircraft Maintenance Management Airway Science Aviation Science/Professional Pilot Avionics Electrical Engineering Logistics Meteorology Transportation Travel Tourism Certificates Airframe Powerplant Technician Logistics Technology Write Call Admissions 618-337-7500 1-800-851-3048 1-800-851-7878 In Illinois Ii41j SEND $350 FOR CATALOG cityStateZip TelephoneSoc Security No Major December 1988 43 Competition Products foam wing cores availabale Full-Size saddles Top core L sits foam saddle cut Note trailing edges Right core R Full-Size saddle Extra chord saddle supports TE sheeting during laminating pro cess Theres info column Aerospace nations number employer Parks first aerospace education Pais College SAINT LOUIS UNWERSITY information complete mail Name Address HS Graduation Date Return Parks College Saint Louis University MACahokia IL 62206 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STITT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS servo connector Turn transmitter select op tion will notice will hor izontal scale drawn computer screen calibrated milliseconds moving pointer follows motion transmitter stick see Figure #7 prefer digital read-out pulse length theres also numeric read out measuring incoming pulse length nearest microsecond option serves two purposes can used measure end points stick travel also can used see well transmit ter sticks return neutral after theyve released Let stick snap back neutral take reading slowly return stick neutral see get same reading Move stick opposite direction same good set sticks will typi cally return within few microseconds same neutral setting time either direction measurement solved problem originally thought servo linkage problem systems plane would stay trim problem finally found sticky stick transmitter didnt al ways return same spot after re leased word cautionif select Op tion #7 have receiver connected computer have receiver connected no transmitter running computer will appear lock up nor mal Whats happening computer waiting pulse come User Port get out locked-up mode hold down Run/Stop key tap Re store keys Option #8 Slew Servo allows slowly move servo through its range using arrow keys lower right side keyboard change servo output arm position moving output arm position using option given read-out near est microsecond pulse length servo receiving option can used check servo linearity have large pointer con nected servo output arm protrac tor other means accurately determin ing pointer position could plot curve pulse length horizontal axis servo rotation vertical axis servo truly linear curve plot will turn out perfectly straight line Figure #1 have about hours work $10 can build transmitter checker automated servo testing setup using handful parts inex pensive home computer dont hap pen have Commodore C-64 computer should someone within club does computerized radio/servo checker could make interesting group project something club could make available service during meet ing rainy weekend give mem bers means checking RC systems hope find useful tool Parts List 1 ea Aileron Connector match radio sys tem 1 ea PC Card Edge Connector match Com modore C64* IC Electromcs part #41-804 #41-816 Amphenol part #225-2-12-2-4-1-01 Cinch part #251-12-30-160 1 ea Experimenters Dual IC Board Radio Shack catalog #276-159 1 ea 2N3638 MPS2907 other PNP silicon general purpose small signal transistor Radio Shack catalog #276-2023 1 ea 4700 Ohm A-watt resistor Radio Shack catalog #271-1330 1 ca 22000 Ohm A-watt resistor Radio Shack Catalog #271-1339 Solder wire miscellaneous small hand tools *The cost PC card edge connector lo cal electronics dealer approximately $375 Its also listed part number 12/245E Jameco Electronics catalog costs $149 can reach Jameco Electronics 415 592-8097 write 1355 Shoreway Rd Belmont CA 94002 Janieco has $2000 minimum order may want get few friends together prepare bulk purchase Jameco also requires 5% handling fee $100 minimum Call Ja meco cant find connector locally have handful connectors Ill pro vide $500 first-come basis until supply runs out Please include pre-addressed stamped envelope orders case check has returned software project available Commodore diskette au thor CompuServe No hard copy printout available diskette can obtained sending $500 check money order cover cost disk mailer postage Bernard L Stuecker 2433 Carey Ln Vienna VA 22180 CompuServe subscribers can GO MOD ELNET find program software dowaloading Library 11 com mand BRO KEYSERVO can get CompuServe subscription information calling CompuServe 800 848-8199 AMA member would like free CompuServe subscription kit write Doug Pratt AMA HQ 1810 Samuel Morse Dr Reston VA 22090 ModelNet AMAs computer bulletin board service need information about project please sure include pre addressed stamped envelope query address above RC Soaring/Blakeslee Continued page 43 planes DG-100/428/132/229 DG-200 Acroracer/3 75/[ 106/ 128]/293 DG-200/ 428/119/257 DG-l00/428/143/250 DG 202/500/[139/16 11/216 first DG-100 now 11 years old wings DG-200 conventional con struction 2mm balsa sheeting steel blade joiners others have blue foam cores covered fiberglass obechi made using vacuum-bag technique DG-202 50 142 Model Aviation OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 E ADD $100 auinrn IAIITLJIId 2A UfI R5 Fox 1988 Schneurle SPECIFICATIONS BORE650 STROKE600 DISPLACEMENT199 WEIGHT8 oz RPM 8-4 prop17000 FUEL CONSUMPTION4 az/mm Recent Fox design gives engine performance punch exotic racing motors have engine docile nature has hot restart capability lacking ABC motors Order# StyleCost 12000 Fox 19BBCL$5995 22000 Fox 19BB RC lw/muffler $7995 Fox 25 SPECIFICATIONS BORE680 STROKE680 DISPLACEMENT25 RPM 9-4 prop12000 WEIGHT6 oz FUEL CONSUMPTION4 02/mm Light Powerful Big 25 light 1 9s packs power some 29s superb performer Fox 25 has market long enough thoroughly tried tested Its American made features MKX-type carburetor Order#Style 12500Fox 25 Bushing CL 22500Fox 25 Bushing RC lw/muffler Cost $4995 $6995 meters wingspan 167 ft certainly impres sive machine Can visualize throwing off side mountain Martin says about 202 flies very well due its long wing behaves somewhat sluggishly air still completely aerobatic can flown light breezes wing loading 25 oz/sq ft DGs use Wortmann air foils similar used full-size gliders Contrary popular opinion 11 years back sections perform very well Scale Gliders have flown high wing loading higher speed yield good performance Competition Products foam wing cores guys talk around country agree best wing cores theyve seen come Ed Ber ton Competition Products Florida Ed cuts cores longer normal can sup ply full-size beds ones come cores use pressing wings dreams what Ed says about work ensure quality precision wing cores cut exclusive motor-operated foam-cutting machine Cores exceptionally smooth trailing edges straight sharp can cut size chord within reason taper Maximum wing panel length 72 would impossible stock airfoils chord sizes however stock one-piece E-2 14 Windsong wing cores have templates 31 Eppler air foils 15 Seligs Quabecks others order set custom wing cores simply send set root tip templates along panel length maximum length 72 taper desired prefer will make tem plates additional cost 'Competition Products manufactures two types foam wing products conventional cores new Full-Size construction saddles Con ventional standard cores have around years cut undersized allow wing sheeting usually a / removed top bottom airfoil core can 3/4 1 narrower width chord finished wing means apply adhesive press skins core trailing edge sticking out saddles up inch no support usual result wavy trailing edges Most airfoils used Sailplanes have very delicate trailing edges must kept straight sharp often undercambered main tain airfoils shape obtain perform ance designed profile Keeping 3/4 unsupported trailing edge straight maintaining airfoil very criticalbut always easy Competition Products has answer Full-Size construction saddles Unlike conventional cores cut under sIze Full-Size construction saddles cut same size finished wing chord dimen sion same important airfoil ts exactly same finished wing wing core sheeted placed between Full-Size top bottom saddles finished trailing edge wing flush con struction saddles wings trailing edge fully supported along entire length pan el therefore kept perfectly straight assum ing building surface straight BR Full-Size construction saddles integrity airfoil maintained 100% Full-Size construction saddles must used matching set conventional cores cores come Full-Size saddles just along ridethey used thing BR Full-Size saddles used suspected forces insignfl cant spiral propwash pushing rudder overriding force play sed little test Take North PacJic type rubber model Assemble andfly willfly left turn circles Now cement stab CA extend rudder slotfrom top bottom Put rudder facing down will fly right turn circles Replace rudder longer parallel sheet can slide up down will able find position top forces bottom forces balanced model will fly straight Conclusion orities just plain wrong second popular belief just isnt Reducing crankcase volume 2 cycle model airplane motor will improve its power observations didnt jibe theory devised test fitted unported cylinder piston rear cover could pull piston out motor running thus varying crankcase volum& Result very slight increase RPM crankcase volume increased didnt expect test repeated several other Fox motors le brand Xmotors case maximum RRM achieved somewhat greater case volume stock Conclusion authorities hopping up motor just plain wrong third popularfallacy certain imported motors best can buy simple test can run yourself Buy Fox 40 Standard slightly costly 0540 EP Check both ease starting power idle throttle response Need tell results bock-up test buy Fox 50 its expensive imported counterpart Perform same tests Condusion orities tell buy imported motor just plain wrong Happy Flying 3JA Manufacturing Company 5305 Toweon Avenue Fort Smith AR 72901 Phone 501 848-1656 144 Model Aviation everything told example often told motor torque gyroscopic action causes aircraft want turn left power applied FOX MANUFACTuRING CO 5305 Towson Avenue Fort Smith Arkansas 72901 501 646-1656 5 WE ARE SHOOTING DOWN 4w4 HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only 3D BALSA TRIANGLES 36 1414 25 3838 30 1212 35 3434 45 1~1 55 3116 3718BALSA PLANKS36 452411 51612154 612013200 3014280 31241 23275 261124350 3022225 484423325 565524435 662833495 753734588 8446 13955TAPERED SHEETS36 70142 3143 238 2 68 78383 98 65123120 90 BALSA SHEETS 36 48 1162 33 3322 40 18 2 43 3162 49 14 2 56 1323 37 1203 37 1163 37 48 3323 44 58 18 3 54 71 3163 62 82 14 3 7395 5 163 85110 38 3 66124 123110155 34 3165191 1164 5876 3324 70 94 164 80106 3164 93122 44110134 38 4165225 12 4225261 MATCHED SHEETS 42 3324100 80108 3164120 144131 BALSA SliCKS 3645 1161409 1163810 1161214 332 1410 332 3812 332 1216 18 1808 181411 183812 181210 31631611 316 3817 316 1222 14 1416 143819 41221 143434 14 140 51651671 38 3827 381232 383442 3812 21236 123446 12158 566648 343467 BALSA HOT LINE Cell 1806 745 6394 10 em 6pm Ceefral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 LONE STAR EPOXY 900LSI695 598 lSrrls598 3Orn,598 LIGHT 4-6 LB WOOD36 1323 53 1203 53 1163 53 3323 63 183 77 3163 89 143104 383122 123158 343242 3335 1164 83 3324100 164115 3164133 144158 364236 124322 TRAILING EDGE 36 14132 5161 14 39 3611246 12270 INSTANTGLUE loOSca298 1 oo TIne 298 2oo Thick 550 20 15, 556 BASSWOOD48 316311626 3161438 3163838 31161/246 31163460 1141442 143849 143480 318 31860 3811270 318 31490 121290 1234100 BUNDLE DEALS 20-116336 699 201164361035 20332 336 865 16332436 965 1518336 735 1018 436 695 15316336 920 103164 36 835 1014336 655 1014436 938 10318336 870 5318436 655 51123036 548 512436 1088 10332448 885 518448 500 5316448 600 514448 645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE latest catalog SPRUCE STICKS 36 48 18 1i8 18 14 18 38 316 3116 114 14 114 318 14 12 318 38 3i8 1i2 1212 1234 1725 2026 2232 2638 3450 4055 4565 4968 6077 6688 7597 SPRUCE TRIANGLES 36 38 3847 121264 34 HARD MAPLE 1 4 38 3838 3812 3834 1 2 34 BIRCH DO WEL S 18 316 14 516 36 IS 40 45 50 58 68 36 09 11 14 25 32 3PLYBIRCH48 16412620 13212445 11612455 1812485 S PLY BIRCH 3132 12 11812 316 12 114 12 38 12 12512 48 588 625 625 625 725 900 LITE PLY 48GROOVED LGMOUNTS 12 Inches 383418140 3834 16132140 1234l3116l45 186155 1812315 ________________________ _____________________ 146 250 1412495 cost s Handling Charge pay UPS Add $250 COD $300 extra PP APO FPO States accept VIsa Master Card personal checks COO 63% lao 111 reuas US currency 0014 MrSirrrunr Wood Order 110 00 I~I1LU [6] i _______________ during sheeting/pressing process Washout can built both conventional cores Full-Size saddles thus assuring both wing panels will exactly same conventional cores Full-Size saddles cut 1 -lb-density white virgin foam Re ground material used Two-pound-density blue foam also available additional cost items shipped UPSno COD cannot shipped PO Box address Conven tional cores Full-Size saddles $45 per set plus UPS Multipanel wings $2250 per pan el plus UPS Custom templates $30 per pair info order sheet send SASE Ed 921 Birdie Way Apollo Beach FL 33570 telephone 813 645-5171 Next month well have scoop Ed skins wings using epoxy resin adhesive ATRCS follow-up August 1988 column re posied ATRCS microprocessor conversion Airtronics Module 75P transmitter may recall amazing system designed being sold byControl Systems Laborator ies Silicon Valley CA As good control system sounded paper theres old saying about proof pudding o reason extremely happy receive re port Satlplaner ATRCS actually worked him following letter Asher Carmichael Daphne AL Asher professional wood worker dealing things like fine furniture clock cases Readers Jim Grays RIC Soaring Digest will recognize Ashers name because has writing very informative entertain ing series articles Sailplane construction techniques Ashers ATRCS report old saying among cabinetmakers mark master craftsman whether make mistakes correct continue make enough unreconcilable gaffes profession possibly considered jour neyman seem transfer same ten dency modeling interests times mistake will present itself seems no way out Occasionally an swer found salvages situation may pearl great price Such case Windsong Having decided fly Windsong pri mary contest ship set about finding out could about plane compatible radio sys tems Some people said build plane equip just like Dodgson says Others said No will missing something dont mix functions electronically Well being tinkerer heart hav ing enough experience know otherwise went out bought Airtronics Module 75P elec tronically control plane dreams read letters put out 75P fliers seemed way go After push switch herer pull lever trimmer could achieve functions Dodgson recommends plumbing Let tell after first few flights just knew made right decision plane performed flawlessly could change throws compensations mixing values etc twist pot reveled upmanship few months placed very first contest Other fliers beginning whisper Better watch Carmichaelhe has hot plane finally taking metal home So said myself Now time really start playing Continued page 149 fliS oia timer perfectly proportioned modeling Curtlss Robin 049 EngInes -channel RIC 4 Wlngspsn ElectrIC Power Optional 12295 511 e103 Very few lull scale aircra8 ideaily nailed model flight appealing old Carliss RoSin horn spruce linen age heaulilulty pmportioned ruhh8r electric glow engines Easy tan SolId trainerlike perlormence Flytine Models Catalog hOt phOne 1783127316683 INE MODELS INC PO Box 2136 Falrlax VirginIa 22031 LL5A December 1988 145 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa TWO NEW FLIGHT BOXES Completely assembled aud tinished 51440 USA Both lop quality wood conslraclion Two large drawers Unique drawer locks Small hoc $8500 plus shipping Large hoo5 12500 ptas shipping includes laeI cumparlmentbatteryypuwnr panel coerparlmenladlaslable tuselage cradles Money hack guarantee send 53 101 specs call 415 3637732 lease nressage Flights Fancy e coma de flag P0 80 1 La Plonda Ca 84820 4 19 4 # / ADULTS $300 CHILDREN 612 $100 w/adflt SENIOR CITIZENS $200 NEW PAVILION & EXPO HALL WESTERN WASHINGTON FAIRGROUNDS POYALLUP WASHINGTON FREE PARKING OC I1 FOR INFO CONTACT DON SWEASY 206 847-1279 PO BOX 73939 PUYALLUP WA 98373 OR BOB BEAN Evenings 206 848-0160 PACIFIC TIME) -4 RC Soaring/Blakeslee Continued page 145 switches levers have budding reputation uphold better unlock full per formance envelope airplane additional setup instructions gath ered through modeling press 7SP worked just greaton ground Push flap trim lever forward pull flap preset switch hack reflex Slide side pot forward spoilerons throttle stick down flaps Its quite easy youre flying 0K Im air Oh no bad sinkhave get Out Lets see flap trim forward left hand flap switch hack right reflex other way around Hey whos flying airplane Oh well Im really used yet Uh-oh already time land Flaps down throttle stick left hand spoiler ons up side pot left hand Oops Im land ing short Quick get everything hack neutral hand Youve got kidding Friends didnt take long realize stuck part limited capabili ties whether own didnt listen Dodgson could have control functions onor adjacent tothe sticks right fingertips continued fly Windsong during contest season benefit what con sider easy control functions did manage place few contests Still thought oc curred Wouldnt nice day answer dreams came mail description ATRCS though would cost seemed like logical way out already 75P re luctant give up some its features switching hack mechanical mixing Send transmitter along $300 California article said problems will solved Tom Mroz Eugene Engelau Control Systems Laboratories designed retrofit 75P called Advanced Technology Radio Control System ATRCS pronounced A-Tracks short Basically digital en coder replaces pots switches computer LCD readout six keypad tons understanding sys tem could everything wanted doand morewith two transmitter sticks three-pole switch Well couldnt wait price seemed high considering what plane already might pearl after gave let tell am glad system turns 75P absolute wonder now equivalent advanced radio world mixing presets available boggle mind easy set up fly well Someone finally given us Glider-guiders elec tronic capabilities manufacturers tantalizing us long system designed Sailplanes panic ularly multichannel ones encoder asks certain questions concerning functions de sired and/or available questions dis played LCD respond yes no set control surface movement use increment/decrement buttons Such things electronic centering travel vol ume mixing kinds presets easily obtained seven templates com puter correspond control con figuration likely encounter F3B flying wings Just pull up LCD away gosetting things up liking can program store setups four different planes same plane dif ferent settings transmitter convenient switch added above flap stick ena bles change another compatible setup during flight real advantage wish have plane programmed different condi tions tasks Flip switch fly can add drop out mixing change con trol surface travel As example have four independent servos flaps ailerons could switch flight between flape rons standard aileron/flaps configuration two functions appeal Windsong spoileron/crow threeposition trailing edge presets functions re quire have independent aileron servos thats small price pay benefit Spoilerons begin actuating flap-stick position choose position flap stick appropriate location enter en coder memory pressing two buttons As lower flaps both ailerons will start rising gether pass threshold position what meant spoilerons ailerons go up act like spoilers Crow means flaps down ailerons upthe effective means glidepath control BR yes can pro gram reverse differential spoilerons along elevator compensation dont like spoilerons time can drop out deleting alternate setup ac tuate setup flight flick alter nate switch three-position trailing edge presets lo cated three-pole switch top trans mitter Push switch forward trailing edge launch modeflaps down say 200 ailerons down 100 combination Center switch neutral cruise setting Push switch back entire trailDecember 1988 149 VINTAGE FORSTER ENGINES Using original casting dies lastest computer control led machi ery RJL producing highest quality lowest priced vintage engines avai able Both engines come complete original reprinted box literature Ignition version equipped clear plastic tank single speed Forster timer Both engines perfect SAM Old Time Stunt events Delivery Dec 88 glow Mar 89 ignition Satisfaction Guaranteedl Add $300 per engine shipping handling Calif residents add sales tax Glow plug spark plug coil condenser included RJL INDUSTRIES PO Box 5 Sierra Madre CA 91024 818 3590016 ing edge reflexed 60 high-speed flying An add-on programmable switch some transmit ters may give last two settings will give elevator compensation appropriate mode ATRCS does though Windsong doesnt need side pot 7SP can now programmed adjust camber along entire trailing edge might advantageous planes hav ing airfoils benefit slight camber changes light lift other trailing edge functions remain effect option mixing gains adjust ments available ATRCS havent really explored yet should pointed out transmitter will work flight packs other Airtronics same frequency course will also work new Airtronics Spectra PCM receivers well standard PPM/FM nice feature extra margin safety Also travel volume readouts percentages makes snap return control surfaces previous positions start playing planess trim settings features ATRCS/7SP system flies just like other proportional radio control sticks trim pots etc work nor mally would takes about two weeks including shipping time CSL work transmitter returned professionally printed instruction manual quite thorough understand able one-year warranty ATRCS components workmanship CSLs address 1361 Fallen Leaf Dr Milpitas CA 95035 tele phone 408 946-4142 Maybe some method madness know ATRCS has blessing Windsong system time has come have inclination mix control functions Windsong other full-function Sail plane electronically dont settle anything less ATRCS Hi-Performance Sailplanes Martin Bamerts ar ticle making wings molds sparked lot interest high-tech Sailplane wing construc tion methods first question people ask can buy materials Therefore glad hear Ron Wagner has just started up Hi-Performance Sailplanes Ron spe cializing materials needed molding vacuum-bagging wings expense out-of-sight minimum orders Rons rundown current offerings 1 HP Cell wing skins Hi-Performance wing skins new product designed replace balsawood skins enhance wing surface quality glass cloth used over blue foam material engineered replace 2mm Rohacel sightly denser 5 lb/cu ft Its thickness 060 15mm means less volume lower-weight wing sheet size 24 x 96 ideal larger Gliders eliminates splicing balsa sheets 2 Three types epoxies Type 1 thinviscosity laminating epoxy suitable bonding lightweight cloths wing skins Type 2 wing-skin-bonding adhesive works well HP Cell blue foam Type 3 recommended structural bonding adhesives first true epoxy adhesives market Epoxies bonding blue foam require certain properties have considered epoxy de velopment Available quart size plus hardener 3 Magnalite carbon laminates Type unidi rectional carbon fiber 007 x 1 x 72 Type 2 same except 014 thick Type 3 tapered 030 root 007 tip 72 long material can custom cut var ious lengths widths 4 Nomex HP honeycomb 3-lb cell-structure honeycomb 080 x 12 x 96 5 Fibergloss cloth 1 4-oz treated E Glass use HP Cell wing skins also stocks 2-oz treated E-Glass 6 Mylar sheets 014 thick laying over wet epoxy/glass during vacuum bagging Mini mum size 48 x 36 Hi-Performance Sailplanes address 17902 NE 156th St Woodinville WA 98072 tele phone 206 487-1721 suggest sending SASE Ron requesting latest price list mention ing exactly what application can prob ably assist getting started path higher-tech higher-performance Sailplanes NSS update Cliff Oliver Secretary/Treasurer Membership up 15% time last year Interest host clubs sponsoring Soar-In competition also up year thanks ef forts Marshall Long anyone interested hosting Soar-In next year start planning now contacting Marshall 824 Garden Meadow Universal City TX 78148 telephone 512 6593337 New year bimonthly publication Sailplane columns being written exclusively F3B Don Edberg Cross-Country Miles Moran fellows have years experience disci plines passing along us lot great formation prospective NSS Handbook has put hold time being need find mat agreeable Everyone involved great ideas opinions time feel handbook ready put place anyone would like free copy Sailplane includes membership application NSS drop line 8151 Broadway San Antonio TX 78209 give call 512 821-6299 As say cooler commercial Thank support League Silent Flight news Sailplaners have achieved Level V account about 1 % total LSF membership 6100 since list now boasts 62 names new Level V members LSF Numbers date achievement No 57Dennis Chall #38338/8/87 No 58Guy Dickes #336010/13/87 No 59Bob McGowan #228610/24/87 No 60Bob Sowder #379511/7/87 No 61Brian Agnew #314012/16/87 No 62Douglas Barry #16444/30/88 Congratulations guys July issue LSF Shortlines went out about 1200 members didnt get want keep up LSF happenings drop postcard name address LSF PO Box 647 Mundelin IL 60060 New monthly magazineSlope Soaring News Lovers Soaring slopes will glad know new journal devoted solely Slope news Slope Soaring News being pub lished out Signal Hill CA Charlie Morey Chuck Korolden Marcie Berriz what Charlie has say about new venture Heres first issue Slope Soaring News #1 see deals RC Slope Soar ing specifically its practiced California say California please dont think snubbing other fliers across US Its just tiny new publication volunteer staff three dont pretend represent Slope Soaring national level wel come contributions readers across US would delighted print interesting 150 Model Aviation Elm SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4011499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 EAJGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS SPECIAL Now SEE YOUR ORDER NO NITRO CASE Synthetic/CastorBlends 31300055%Byro-Ji 31300065%Premiu 31300088%Premiu 313001010%Byro-Jet 313001110%Premiun 313001210%4 Cycle 313001615%Premium 313001715%4Cyc1eS 313002020%Byro-Jet S 3 13002525%Premium C 313003535%Premium Co 313004545%Premium Co Straight Synthetic 21200055%Byro-Jet Strs 21200065%Premium 212001010%Byro-Jet 212001110%Premium 01515%Premium 5 212002020%Byro-Jet aighi 212002525%Premium ompel 212003535%Premium Compel 2 12004545%Premium Compel Minimum Order Quantity--i Case Byron Originals Inc ACTORY PRICE PER GAL CASE OF 4 1-4 CASES 5 CASES & UP $ 800S 750 800750 860810 900850 900850 900850 10751015 10751015 12501175 1335 1650 1965 7 info anywhere world hope wider recognition will come time now hopelessly local Californians course thats bad innovative ingenious Gliders flying buddies bring slopes weekend newsworthy Slope Soaring News will bring new con cepts forum can share knowledge SSNs first issue lots interesting stuff 16 pages full-size 8 V2 x 11 very well writ ten has photos professionally printed years subscription $1595 Make check Out Charlie Morey send SSN 2601 E 19th St #29 Signal Hill CA 90804 think youll like F3B news As write Team Selection Fi nals coming up two weeks September 1718 Los Angeles course time read contest will have over six weeks ago cant tell made Team until next month latest news about winches ClAM president rescinded new restricted power winch rules adopted April meeting Paris evidently because internal motor bat tery resistance difficult measure first thought wait end means action has stirred up some very strong protest action AMA F3B Team Selec tion Committee Chainnan Don Edberg ClAM F3B Subcommittee Chairman John C Grigg well recommendations AMA Executive Director/CIAJvI Secretary John Worth As date publication issue Model Avi ation situation has resolved F3B program participants Contributing Editor ron Blakeslee will informed AMA HQ staff members further developments RMcM 1988 Team Selection finalists 23 number come four areas around country northern southern California Colorado Illinois finalists Northern CaliforniaBrian Chan Seth Daw son Gene Engelau Rich Spicer Southern CaliforniaMike Bame Don Edberg Gary Ittner Larry Jolly Daryl Perkins Steve Rae Rick Schrameck Joe Wurts ColoradoScott Dukes Bob Edson Mike Hickman Lenny Keer Randy Reynolds Jack Sasson John Wyss IllinoisRich Burnoski Wayne Fredette Jack Hiner Jim McCarthy best luck RC Old-Timers/Mathews Continued page 44 Loreli song Build sometime As can see three-view drawing answering song can challenging model easily built Old-Timer Perhaps complexity explains Barney Snyders much simplified Spook mentioned last column admitted rip-off Mystery Man Ill get suggested modifications rework design since figure anyone capable building wing bit com petent am would suggest however using rule thumb 250 sq wing area u engine displacement choos ing power plant overpower beautiful airplane screaming rate climb such would pure sacrilege opinion Mystery Man full-size plan available No 3A7 Old Time Plan Service 253 No 4th St PO Box 90310 San Jose CA 95109Joe Weathers Aeroneers Joe Weathers founding member San Diego Aero neers 1935 remained active member un til death 49 years later nominated AMA Hall Fame club particu larly through efforts Jim Alaback ducted August 1988 Jim has able obtain vast collection Joes materials has now cataloged re stored drawings photos preserva tion San Diego Aerospace Museum Joes family friends have helpful Jims efforts inasmuch sensed impor tance preserving material future Alaback has arranged Joes unpub lished designs mostly drawn shelf paper traced onto vellum reproducible copies have provided AMA Museum Old Time Plan Service also making copy negatives Joes original photos well newspaper clippings etc total documented design list has now ex ceeded 100 published unpublished planes Among drawings three-view Tubby see column October 1980 annotations indicate Weathers developed model part design proposal fullsized aircraft Obviously nothing came wouldnt its esthetic appeal have vastly greater Aeronca C3 does resemble Aeroneers publishes newsletter best can subscribe $750/year writing Jim Alaback 16634 Diaz Dr San Diego CA 92128 History its artifacts brief overContinued page 154 December 1988 151 BYRONPerformance Blended Fuels ORIGINALSINcF Higher Smoother Running Slut erior Lubrication ualled Rust Protection TENTLY BLENDED specific use 1oesnt stock Byron Originals Fuels order direct E FREE FREIGHT Overseas call shipping quote RETAIL PER GAL $1095 1095 1195 95 5 3310