THE MODI 900 Greco Technologies Youre probably asking Whats Modi 900 what Greco Technologies honest can pass about either time material gleaned press release phone conversation gliders principal designer Greg Chun Greg works Greco Engineering division Greco Technologies told company new model manufacturing wants enter business adjunct engineering consulting work rendering shows attractive Modi Its specifications modem up-to-date thats about know Greg said have gone through three design versions examples final design about late August placed hands experienced fliers evaluation Entering model glider market especially high end isnt simple proposition Before offering glider sale design must thoroughly tested Construction details must proven workmanship shown high quality Most important gliders performance should compare well competition time read Greg says Modi will flying Southern California contest circuit should reporting real life results soon Until would seem best treat following press release news item heres Readers Digest version Greco press release Greco Technologies excited announce arrival Modi 900 open-class competition sailplane has 50-inch fiberglass Kevlar fuselage RG15 triple-taper-cut wings made out extruded blue foam glass lots uniweb carbon fiber cloth development unique sailplane undertaken Greco engineering technical consulting firm Pasadena its staff aerospace engineers sailplane enthusiasts allowed insight both technical aspects aerodynamics wants needs hobbyist Modi 900 now off drawing board production available public Modi 900 sets itself apart competition its strength durability layer plane designed built strength versus weight considerations mind wings start PRB blue foam base overlaid full layer top bottom 45 oz carbon fiber cloth plus second layer cloth top 10 inches bottom 15 inches root wing strength encased 14 oz fiberglass 48 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Dan Troxell Laguna Hills CA bought fuselage Trom Holana Kern Germany made own wings half-scale Grobe 103 Aero two-place glider will featured January Artists rendering beautiful Modi 900 Greco Technologies ship will come largely pre-built ARF Designed thermal multitask competition has 1 1Oin wingspan 903 sqln weight 70 80 ounces Chris Aho left holds dad craigs protoiype RnInum y uuuuIu De signs Anthem updated improved Lovesong Right winners 1991 Southwest contest Phoenix L-R front Ian Dou glas John Mangino beck Steve George Ed Holder both Leg ends Jim McCarthy Comet 89T 1992 Southwest Feb ruary will bigger belier yet cloth laminating epoxy root ribs sub ribs 14-in plywood laminated strips carbon fiber ensure endurance wing joiner rod -in carbon fiber rod encased brass tube giving tensile strength steel fraction weight Aluminum shaft hinges flaps ailerons included ensure rigidity under high pressures fuselage constructed Kevlar fiberglass Under testing Modi 900s wings withstood pressures approximately 375 foot pounds before delamination Other vital statistics include Span 110 wing 50-in fuse wing area 9026 sq weight 70-79 oz wing loading 110 oz/sq ft aspect ratio 1311 airfoils RG15 wing 5D8020 stabilizer kit comes two forms pre bagged Almost-Ready-to-Fly pre bagged kit comes wings rough stage just out bag kit takes 30 80 hours complete retails $595 ARF kit comes hardware installed finished wings takes 10 15 hours complete radio installation retails $895 information catalog contact Greco Technologies PO Box Anthem Dodgson Designs new name pedigree going back 1972 Bob Dodgson began manufacturing aileron glider kits Bob introduced 134-inch-span Windsong 1982 few years ago strengthened structure cope modern exuberant flying styles renamed Lovesong Songs have probably popular thermal competition ships during period Continued page 183 December 1991 49 10 South Pasadena CA 91031 call 1800-34-GRECO Ext 23 Feather Cut hot wire foam Cutter gives builders easy-to-do Pro quality results small low-cost vacuum pumps answer bag gers prayers Mighty Mini-Vac R Composite Structures Technology Nylon bag material breather felt sealant part system whole thing available CST $7495 Mid-Columbia/Blakeslee Continued page 179 heard planes touch Yeah glad Rich such smooth flier didnt flinch RC Soaring/Blakeslee Continued page 49 around country Bob says hes sold several thousand kits Now Bob has updated Song design based experience latest kit Saber Basically Anthem Song 5D7037 airfoil obechi sheeting flying surfaces aileron flap servos wings 48-inch bullet proof wing spar %-in joiner rod Bob says newsletter Second Wind prefer larger glider scale-like profile easy see great distances want added L/D long span high aspect ratio wing nothing available can match Anthem limited time will continue offer Lovesong have computer radio prefer slower flying yet high-performance tripped Eppler 214 airfoil sure get Lovesong theyre still production suggest wait gone AVIATION CHfISTMAS GIFTS SALE r VALUABLE COUPON ngall paper CORSAIR Procut/colored W/MOTOR $4 2 for- $6 ___ ~Precolored GIFT glder-sI ers & envelopes j2 $3 24 $5j CATALOG 1 3000 planes $18______ w/lst order- over PAPEII AIRPLANE club $1500$251 PAPER AIRPLANES II 433 NIHOA STREET KAHULUI HI 96732 USA ISeI uVoo will gone Prices Anthem Base kit $279 kit pre-built spars $345 kit pre-sheeted wings stabs rudder limited availabilitycheck before ordering $430 add $12 UPS shipping kits Write Dodgson Designs 21230 Damson Road Bothell WA 98021 Phone 206/776-8067 Monday-Friday 10 am 5 pm Pacific time Bobs Second Wind newsletter good way keep touch whats happening Dodgson Designs About 700 customers subscribe Two issues per year spring fall published cost modest $200 $300 Canadians An Anthem builder Craig Aho Mountlake Terrace near Seattle Craig called sing Anthems praises kind enough send photo letter picture Anthem promised son Chris holding Sorry poor quality photo Anthem fantastic flier using 5D7037 airfoil new spar system roll rate impressive speed range wide good top end aircraft still has best light lift qualitiesas did its predecessor Lovesong Ive hung up Falcon 880 now Ive got aircraft built prototype 60 hours dee 6rckoo/ Learn fly ottr planes private field Five Dr 6 day course $350 Open year round Send SASE Complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 scratch built wood parts builds fast large enough see easily has classic Song look Bob now offering new option Anthem Saber completely pre-sheeted flying surfaces additional $150 ATRCS Version 30 u p-grade brought guys Control Systems Laboratories Gene Englegau Tom Mroz Youll recall introduced ATRCS conversion Airtronics Module transmitter summer 1988 Shortly thereafter Airtronics contracted CSL provide similar hardware software very popular Vision transmitter CSLs latest announcement Now new improved software revision plus improved components can installed December 1991 183 ~IEKINO STEPPING INTO THE FUTURE OF R/C THE NEWEST IN ELECTRIC FUGHT PRODUCTS Units Feature Surface Mount Technology Light Weight Ultra-Slim Advanced Linear Design Low Current Draw lOMA High Power MOSFET Design 118 Cells 24 Volts 40 size motors Electronic Speed Controller ESC Electronic throw ad pat pend ESC 100120 amp coot 300 amp surge$5995 Electronic Switch ESW Fully adi reversihle point indicator ESW 23030 amp coot 75 amp surge$2995 ESW 26060 amp coot 150 amp surge$3995 ESW212O120 amp coot 300 amp surgeS5995 Please specify receiver coon ordering prod ucts Guaranteen 6 months trom purchase dote Call write details TREK IND regon Ave ord NY 11763 516 758-8170 LIGHTING SYSTEMS THE ORIGINALS. Still Best *RED 01Programmable Flashing Navigation Lights 9V$2495 #RED 02Strobe Light Ad] Rate 9V$1995 *RED 03Landing Lights 48V$3995 *RED 04Mars Rotating Beacon Ad] Rate 9 V$1995 #RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 #RED 23Real Strobe Light true zenon strobe 3V$2995 S SEE YOUR DEALER 0 SEND STAMPED ENVELOPE FOR RAM INFO unavaIlable locally send check money order full credit card info coat Item plus $400 $5 00 foreign immediate shipment Include full addresa U PS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 Near AiRES MOLLS METALS 500KS PRECOS5ON INSTRUMENTS ~COMPLETE COTOLOC $200 TDDLS CD C4M1U RoO OTs items sPr~iB2555ssss * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No 202 Air Cleaner Fine *275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc po Box3786 Cones Mchganaole Add $250 sh pp op M ch gao ea dents add 4% ua eu taxI 11376 Ridgeway RoadKensington OH 44427216 223-1950 DrtObatiC span $17995 span -$18995 Sportobatirs M 84span92span-S1to 84 Sportobatics 10 lbs ideal 90 2C 120 4C engines 92 versions 13 lbs perfect ST2000-3000 equivalent engines Both versions build quickly lite-ply & balsa fuselage & tail & foam wing Sportobatics fill need hotdog show-off sport planes Knife-edge takeoffs flat spins snap rolls rtobatics will anything can yet land like strainer Super Canopy Ohio CS-equipped 5P7 Vision 85P transmitters up-grade consists following features ATRCS 5P7 Module Transmitters Replaces Micro-processor improved versionallowing larger sophisticated programs Replaces setup memory chips larger capacity setdoubles setup memory 8 setups Up-grades ATRCS transmitters include new featuresAdds PCM fail safeAdds aircraft naming setup Vision 85P Transmitters above plus additional receiver capabilityFutaba FM-PPM 4-8 channels Both Vision 75P ATRCS transmitters will work RCD FM-PPM 4-8 channel receivers JR FM-PPM 4-8 channel receivers past would have write down setup information since $25995 Giant 99 x 16 Vinyl Clad Nylon Yellow Blue White Two-Color Combinations 8 rugged tube frame 10 easy-out stesi tent stakes nylon guy cords Folds neat hesvy-duty cardboard box goes up quickly complete instructions Optional name city state printed ends $6000 replacing setup memory Now due improvements methods no longer have will automatically save setup information generate paper hard copy restore setups new memory chips hard copy will sent back along transmitter records price version 30 up-grade just $9500 plus $400 UPS ground $1000 UPS blue shipping CA residents need add local sales tax Payment check money order Visa Mastercard Send ATRCS transmitter less antenna battery Control Systems Labs 238 So Hillview Dr Milpitas CA 95035 Phone 408/946-4142 Feather Cut Hot Wire Foam Wing Machine new foam wing cutter produced Tekoa Center Design company better known us LA area father/son team Roger Blayne Chastain As read last month Terry Edmonds Nationals report Blayne Senior age group flier placed first both Standard Unlimited class fact Unlimited class beat Open age winner Brian Agnew point Roger called back asked Id like try machine said betI want cut some cores anyway Roger thought Id suitable test subject because have never cut cores before course Ive seen done Julian Tamezs Channel Productions foam cutting video person other occasions Ive always built kits never cut own cores machine arrived very sturdy 55inch-long mailing tube small parts neatly individually packaged long poly bag whole thing went together about hour Its mainly just matter following easy instructions looking diagrams threading screws nuts together two main parts machine made blue anodized extruded aluminum right off bat know Roger has put lot effort project larger extrusion called body 51 inches long designed mounted edge work bench held place tape easy removal taped edge 24-inch-wide hollow core door sets table As can see photo mounted body two horizontal two vertical rollers four rollers can slide back forth tracks fixed place wing nuts rollers adjust machine 184 Model Aviation OHIO SUPERSTAR PRODUCTS INC ADAPTOR THROW-A-WAY YOUR COLiETS CHUCK & WRENCH USE OUR 0 TO jCHUCK DREMEL POWER TOOLS RUNS 100% TRUE & ONCENTRIC AT FULL RPM NO 501 ADAPTOR ESS cHUCK $1895 IDREMEL 850395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POUSHED STEEL USED FOR CUTTING PLASTIC WOOD SOFT METALS LEXAN PLEXIGLASS & ETC AVAILABLE IN 006 008 010 012 014 016 018020023 025 V028 032ThICKNESS NO 502ARBOR$800 OUR IDE DIAMETER @ $675 EA NO 503 014 X 114 SAW $800 SAWS ONLY WORK WITH OUR ARBOR MICRO SELFsTARTING TORCH No need Ifint matches Just press Piezo Self-Starting button -for micro size adjustable flame barns 237h up 3 hours Operates standard cigarette -hghter butane refiflabfe Tank fits comfortably palm hand made high-impact rubber allows safe non slip comfortable grip Sapplied can butane MT770 Blow Torctt $3500 ne butane MT771 Butane 5 oz0600 EASTERN TOOL& SUPPLY CO I49GRANDST -NYC NY 10013 WRITE FOR CATALOG$300 ORDERS 212-925-1006 WHEN ORDERING- PPD ADO $300 OFFICE 212-226-3749 CODADO$500FAX212-925-1010 cut cores up 50 inches long almost width taper rollers guide two very flexible 22 gauge power wires connect hot cutting wire alligator clips other ends wires connect low voltage power source power wires serve heat cutting wire also pull hot wire through foam block smaller extrusion called control arm 48 inches long pivoted left end body has two purposes compensate difference two power wires travel cutting tapered cores provide pull power wires Tapered cores tricky because cores root 10 inches tip nine inches power wire root travels pull length inch exactlyexplained below the tip control arm has graduated scale its face reads zero 100 use set cuts taper ratio ie tip/root pull lengths root end power wire always attached 100 tip wire attached number calculated pull power wires control arm carries 16-ounce lead weight mounted near middle gravity provides motive force hot wire mounted bow 27-inch length 3A inch x 2 inch wood 10-inch-long diameter music wire legs end wrap 18 thousandths T-370 cutting wire around leg bend legs together specified distance wrap around other leg bend legs provides proper tension wire Roger says cutting wire special neither ni-chrome nor stainless steel leader wire standard bow will cut cores up about 26 inches long might think kinda short designers going Schuemann planform type wing has multiple breaks leading edge need two three sections core per wing panel Since foam comes 24-inch-wide pieces its easy economical design two-foot sections can make own longer bow picking up piece wood local lumber yard Roger will soon coming out new aluminum bows 28 40 52 inches long will have feature being foldable legs thus saving storage space Lets now quickly review three ways can cut cores hand gravity electric motor drive Guiding bow hand straightforward method However get good consistent cores youand perhaps helper other endneed practice steady nerves make constant speed cuts Electric motor powered cutters can quite sophisticated require lot rigging gears belts such important take experienced operator correctly regulate both December 1991 185 Funniest Amateur Video Ever R/C FOLLIES PRESENTS CraziestWackiest Funniest Model Airplane Wrecks Youll Ever See! Over 30 Minutes CRASH after CRASH after CRASH Flying off lake smashing ice What happens hand launch forget turn radio plane seaplane turn treeplane Rocket engine mounted Eindecker Four wrecked planes turned Twin flew just lot Bad flying much Dont miss one-of-a-kind exciting funny video offer youll ever see $1 995 plus $3 shipping handling HOLLAND SOUND SERVICES 1 Dunham Dr Dunmore PA 18512 phone 717-346-8742 VISA-MASTERCARD PA Orders add 6% sales tax speed cut heat wire Otherwise foam will burn excessively too hot/slow wire will drag too much too cold/fast As mentioned above Feather Cut machine gravity type cutter Its beauty simplicity set heat cutting proceeds automatically its own pacea feature well suited new users As said Im new game myself Feather Cut machine has couple novel features appear make work better other designs Ive seen feature sliding lead weights legs bow cutting airfoils bottom profile slide weights toward hot wire wire maintains good contact templates going downhill cutting top profile slide weights back wire has less downforce templates going uphill second related feature bow works horizontal position small tailwheel middle wood part bow allows roll across work surface during cutting old method operate bow vertically suspended springs rubber bands course another potential source adjustment error hardest part cutting foam cores making templates instructions Roger recommends second motion S Discover SECRET TO HASSLE-FREE CHARGING Dont miss perfect day because uncharged batteries amazingly simple AUTO-TRICKLE ADAPTER converts ALL overnight chargers FULLY AUTOMATIC TRICKLE CHARGERS Nothing else like Simply plug wall plug overnight chargers push button forget about batteries whole fleet will ready next day week month year Nothing solder connectors buy 100% solid slate device safely reduces chargers output pulse trickle after 16 hours Directly supports 1 3 chargers However powerful 120 Watt capacity easily HANDLES UP TO 30 CHARGERS Nothing else comes close convenience simplicity safety cost effectiveness T I1 E Hurry secret out Get AUTO-TRICKLE ADAPTER TODAY YOUR LOCAL HOBBY DEALER send $3995 5&H Directly Tejera Microsystems Engineering Inc 800 729-9210 PO nox 340608 Tampa Florida 33694 ADVANCED AERO PRODUCTS VS & Os SIMPASS 120 EXI4A5BT SYSTEMSrii 55 50155 toO sFoOUATO4 5555 HWnE5 W5 PATTERN MR5FT AND WINATS 551 ODvANCeD ASRO poosacos OTT 505 25-C 5450 T5 75553 554 954-3945 using Chuck Andersons Airfoil Plot Program draw full size airfoil profiles computer printer Chucks program $25 Address Box 305 Tullahoma TN 37388 Phone 615/4555788 glue printed airfoil plots horizontal grade Formica horizontal thicker vertical grade 3M No 77 spray adhesive cut out jig saw accurately sand polish surface hot wire rides Note need two paper plots per wing section because airfoils template made two parts matching pairs pairs cutting airfoils bottom profile other top type template must used Feather Cut machine because always cuts top surface template early days foam cutting templates same wing rib used two-piece templates have proven better kind core cutting because register work surface unwanted twists wont introduced sketches below show typical pair templates SD 8020 stabilizer section dashed lines indicate actual section chord spaces before after actual chord hot wire lead-in lead-out ffp7j.4t1 #A 3orT-l cur rIPiPLAT 4A r GuP operation pin sharpened pop rivets work fine bottom templates leading edge always cut first ends foam block must first pre-cut cores planform hand using hot wire bow using Formica triangles Continued page 188 186 Model Aviation Model ATAcxl works existing NiCd overnight C/10 chargers Yes works cordless power tools toys individual cell chargers ste THE WIREMASTER TM ndcrfcoler 4 different models wire bending tools offet Also available Alloy Stainless Aluminum Melric hardware Checkyour dealet first un available send business size SASE free catalog JCM COMPANY 114 washington Torr Dopt Waukogan IL 60085 Efficient wide tips thinner airfoil sections combine greater thrust noise suppresion Will out-perform wood & other plastics water sand & gravel runways Made strong 33% glass-filled nylon RPM rating 160K divided diameter inches 1/2A Series 55x4 55x45 6x35 6x3 6x4$ 99 GIF Series 7x4 7x6125 8x4 8x6135 9x4 9x5 9x6 9x8 95x6155 10x6 10x7 10x8.. 175 11x6 11x7 11x75 11x9195 K Series 12x6 12x8 285 13x6 13x8 385 14x6 14x8 495 15x8 15x10 545 665 16x6 16x8 Antique Series 10x5 11x6 12x6 13x6 14x7 16x7 225 245 335 435 545 715 See local hobby dealer Master Airserew propellers accessories Windsor Propeller Co 3219 Monier Circle Rancho Cordova CA 95742 57-6 AL guides Make sure templates resting squarely against perfectly flat work surface foam well weighted down make bottom cut replace bottom templates top ones top cut template pairs must have exactly matching pin holes replace bottom template top same holes foam used otherwise cuts will off Because bottom cut first core settles its bottom bed need compensate templates width wire-cut minimized hot wire cuts core about 10 thousandths undersize vacuum bag cores glass/carbon fiber undersize about right allow skin thickness Once templates made found using Feather Cutter piece cake Im type person Murphy mind because can usually find some way screw up time try something new machine worked beautifully right out box encountered no problems making perfect looking cores say highly unusual Just get everything set hot wire resting templates four rollers adjusted power wires attached hot wire control arm turn power supplyand away goes foam makes very satisfying sizzling noise hot wire slices through about inch per minute need sit watch go catching bow wire comes out trailing edge can use low voltage up 28 volts power supply like Variac adjustable transformer opted get Rogers Thermal Generator because no-fuss operation unit makes perfect companion Feather Cutter Roger says has fool-proof wire temperature control certainly found true simply adjust knob center dial needle Thermal Generator senses resistance whatever length wire using automatically supplies proper amount power heat wire about 2122250 Simplicity itselfl & MODEL BUILDING 7SERVICE RADIO CONTROL PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 wATcI4oGuE ROAD 8 SEAIEN SAM 8 NY 10314 As foam Roger recommends using Dow PRB Plaster Ready Board blue material same blue Dow Square Edge insulating foam PRB has density two pounds per cubic foot rated 25 psi has open aggressive cell structure Roger says want build killer wing consider Dow HI-l 15 High Load board rated 115 psi six lb/cu ft difficult locate though Finally lets get back tapered core paradox wing root 10 inches tip nine inches youd think taper ratio set control arm would 900 no standard procedure Continued page 190 0 0 0 0 j 0 0 0 0 Ousrlerffiaster Sport lips 73 Span 035 similar $21 build FUNK 385-C$25i~ 1/4 scale 108' Span 12 four stroke scale 84 Span 61 four otroke$21 o photo reduced igaS KINNER SPORTITER K 4 scale 117 Span 035 S cylinder $25 ylinder radial scale 76 Span 61 four stroke $1 o reduced DAVIS 01K scale 905 Span 035 5 cylinder radialp~pPs r/6 scale 603 Span 45 four stroke$1 500 photo reduced STITS PLAYHOY$25I /a scale 88 opus 035 larger 188 Model Aviation Leader Small Airfoil Technology MASIE 11 AHISCREW TAYLOFICRAFT q in 12 $250 61 DGAO Piano O0riOgl PHOTO DOCUMENTATION PACKS uvu"- nrr Scule Piano Alt PLANS NOLLE5 OOIPPFS P5 C cdli Insirocion Sonidet e.money Order COOs clip power wires hot wire inch either end foam block root end power wire actually travels little 10 inches tip end wire travels little less nine inches determine actual lengths travel easiest way place pre shaped foam block piece paper project end inch straight edge pencil measure projected ends Feather Cut machine sells $13950 plus $850 S&H Thermal Generator $9450 plus $450 S&H Both may ordered Tekoa Center Design 3219 Canyon Lake Drive Hollywood CA 90068 Phone/Fax 213/469-5584 New Low-Cost Vacuum Pumps piece April column about making vacuum pump refrigerator compressor generated lot interest knowing what now wouldnt have bothered making Both Composite Structures Technology Aerospace Composite Products WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries fh chargers need pacd6aget wet Cell & Cycler-Chargec *23996 Fits 48V RX 96V Tx p00ll5Plus $750 S&HaGeGelled Cell Others available write calle erieS Regular Model. 96 field kit sinaiPlus $500 P&H electriC boat batteriesSpecify 612 24V 8qnL Canton II spoil winch large boat andPlan $600 P&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssE Ion OlloineailooPO Box 221 605ga-5g24126316V Bill Eff get * says Only Piano Pattetott Sets give anvorted designs want have selected best classic designs time foe pvc choose tcer patterns tot part ate impottast eaclusice feature Curtiss HAWK PlC 9400 wingspan68 length 2268 sq snieg aeon Fnr 13 23 ClO engines 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FOrt3102301 0 pogroac weOe Oppor rOiOsliessnCIOO wirgepan 4 COnnoni nic g Overall Leogro itied Scale Liar eanom OrtOii 2072 sy wing grea a Wirg Panels OuatOt Scala 1/3 Scale MONOCOUPE NA Wingspan 92 Onerall Length - 2100 sq Wing Area Fnr 29 en 38 CID hegines RC3S-4 Bill Ellinget Foonding Mewbnt AMA NFF5 Hall nt Fewer Pricee tor complete plans sub asnemclv S detailed parts hOts PLEASE ADD g3gO shipping wailing tobsl sew 1991 Plan Seer OrvOhere Irafriodasle ovar firel orderli WE TECHNICAL SERVICES RO Box 420144-S Atlanta GA 30342 190 Model Aviation No NITRo Runs 5% Gets about 1 minute ounce fuel OPS MAxI 30 18 Statically dynamically balanced 5 intake ports shaft induction roller ball bearings long stroke pump carb readily available parts l8x8TopfightM.8l85rPm 20 x 6 Zinger8036 rpm 24 x 8 Zinger 30 rpm stock VS parts 54sPeoPleof now selling low cost continuous-run littlebreather strip T-fitting just $5 RC Soaring/Blakesleepumps work great onlymore set obviously way go Continued page 188drawback its too serious thatCST has convenient toll free order pull maximum six inches ofnumber l-800-338-lCST Aerospaces mercury Six inches shouldpump called E-Z Vac goes E-Z use white foam anyway whenLam ACPs excellent epoxy laminating using blue foam cores much vacuumresin sells $6500 itself probably adequate work$7500 both plus $400 S&H set CST calls pump Mighty Mini-similar CSTs ACP set also Vac sells $6995 itself andincludes very neat hose fitting $7495 both plus $600 S&H set asattaches flat surface bag plus shown photo includes threetwo Quick-Seal clips below yards nylon bagging tube sealant ntinued page 192 opper iant Semi-Scale Sportster reminiscent 1930s Heath midwing homebuilt Spans 85-in 90 power 2 plan sheets No 704 Arrow$500 CL Stunt Wing inspired 1960s-vintage Bill Netzeband designs new PAW 049 diesel engine Spans 298-in No 705 Zenith$200 FF Hand Launch Glider serious competition Wing DT spans 18-in 35-38-gr $375 No 193Selleito CL Stunt model lMcDonaIdl winner 1976 1999 1982 FAI World Champs$ No 262crashmaster CL crash-proof trainer two sizes15/30 35/40 power No 3101930 Ftet Biplane AC Sport Scale 35/40 4-channel Wingspan 56-in 4-scale Two plan sheets$625 Mo 314Drake II AC Ken Willards flying boat 3channel 15 power Fly land wofi removable gearS375 No 326Taylor cub AC Don Sinus Schoolyard-Scale tar 049 power 2-3 channel Spans 50-inS359 No 332Zephyr AC small 2-channel Glider hand-launch tow thermal slope soanog$290 No 368LaSer 200 AC Sport Scale replica championOhip Aerobatic flier 40 power 4-5 chanoel Two plan sheets$1075 No 447twA MIsS America AC Old Timer Texaco model 049 910w 2 chaneels$650 No 4604-40 AC shoolder-wiog Sport flier 4-cycle 40 power 4 channels$650 No 539Simltar slow-MotIon 15 AC Tailless flying wing 15 engines spans 60 ones 3-cb AC$359 No 578Schweizer 1-260 AC Quarter-scale Sailplane spans 125 Two plan sheets$1475 6No 581Gee Bee Model Y AC Golden Age Racer spano 72 scale 60 power Three plan sheets$ 1175 0No 588Marish AC Slope-Soaring Sailplane spans 41 uses 2 AC channels$ 425 No 598coronae 150 AC-Assist Old-Timer enlarged 150% opens 7210 uses 40-size 4-strokel 30-size 2-stroke$ 950 cjNo 603Sparrow Hawk P-30 FF Competition robber-power plase won 97 Nuts Spans 30 in$ 225 No 626Sweepee AC Sport/Paltem canards forward-swept wing spons 64 in. uses 40 power 2 plan sheet SI$ 1300 No 626Prime cue AC Sport/Aembatic plane spans 99 in. sans Quadra 35140-size power Two plan sheetsS 1390 --No 630OrigInal Fly Baby AC Old-Timer spans 72 in. uses 19125 2-cycle 49 4-cycle power 12 plan sheetsl$ 1150 0CNo 644Bellanca columbIa AC Schoolyard Scale 2 AC channels hA engioe Wingspan 46 ur$ 575 No 646Winter Hawk FF Rubber-power Coupe dI-liver compotfilan plane spano 47 inS 375 CO anNo 65047/60 RC Special AC Aerobatic sport plane 49 power spans 61 3 plan sheets$ 1975 05 0 No 602Der Pledermauw AC Low-wing sport plane 20/25 power spons 55 in$ 675 o -No 6541amecat AC Trainer/sportoter styled like F14 spans 66 49/61 power Four plan sheets$ 1525 .No 667Super Squire AC Troiner 35/40 2-stroke 53 4-stroke power spans 56/a in$ 759 0 0No 659Boom Box FF Wakefield Robber compettion plane spans 54 in$ 490 0No 601Embry-Omatic FF Embryo Endurasce mbber-power plane spans 20 inS 290 No 663Pee Patch AC Sportster spans 69 uses 49150 4-stroke power 2 plan sheets$ 990 E 0No 664Stuka Stunt CL Stutter semiscale spans 37/a inS 590 No 605conacierittous Oblector FF Moloihill Rubber competition pfane spots 59 flat$ 575 503 66 s AC Sportoter spans 49 uses hot 29132 power 12 plan sheets 75 No 607AT-6 CL Semiocale profile StonIer 35/40 power spans 47 inS 575 6 ENo 609Roto Raven AC Sailplane unique twist-wing control Spons 76-ie Requires elevon nasing$ 650 z CUNo 671cessna cardInal FF Reminder Scale sport flier power spans 39-isS 575 INo 672Krackerjac AC updated version pioneer sport plane spans 74-in two plan sheetsS 1375 No 674 Krumpier AC 975-powered Electric semi-scale bi-winger spoan $ 575 oS 225 No 675BOF-1 FF twin-tailed sport filer Coo 02 Pee Wee engine spans 25-in No 676HIlIner AC twin-electric high-wing Sport ship denigned H6ine lmp-39 motor Has tricycle gear spans 40in.$ 406 -C-No 677ThunderbIrd CL Stutter 29-35 power Two plan sheets drawn original 1982 Veca Spans 54 in$ 975 eNo 676Sean Box FF Woof Coast Bostonian Outdoor design Spono 10//a in$ 159 -o 05oNo 679BIg Blngot Large AC Sportster sporo 95 120-24 power Two plan sheets$ 1790 SNo 6011969 Beds BD-4 FF Rubber Scale modni spans 18 in$ 325 No 682B T VIntage Trainer AC Reminder-Scala Sportster 20-size engises Spans 47% Two plan sheets$ 1156 No 684Staggerwlng Beech 3-Channel RC Schoolyard-Scale to-wieg Sportsler 049 power Spans 32-in$ 375 50lbNo 685Akro-Bat CL Stunner high-performance 049 engines Spons 32-in$ 230 E bNo 686Fotler AC Pattens-typa sport plane 2- 4-cycle power Spans 65-in$ 725 0 688 alth GlIder PP robberband-launched toam/baise Canard Catapufi/Steath Obder combo Spaes 9-in 60 No 689Thomas Morse Scout 54C AC 4-scale biplane 90 power Spaos 63-in 3 plaa oheets$ 1975 IDNo 690p-62B TwIn Muateng CL Profile Sportoter twin MVVS 25 diesels Spans 48-in 2 plari sheets$ 1050 C 0No 6911927 NL2 FF Scale model Polish bomehoifi tar 8-8 watt motor mkber 902 Spans 29-re$ 225 0No 6923 Meter Scooter AC High Performonce Sailplane Spons 118-in 2 plan sheets$ 1159 693csrdlnal classic CL Sport Stunter 35 power Spuos 50-in$ 575 CNo 694AIrmaster AC Canard Sportoter lnr two 40 push-pull engines ar 60 pusher tractor Spans 66-in 2 plan sheets 5 1475 -0No 695Spirit St Louis CL Scale replica far 1525 power Spans 46-in$ 575 0No 696Pole cat FF P-30 Class AMA Senior record holder Spans 31-in $ 225 No 697Tlgerkltten 8 AC High-performance Sport Aembatic design 05/15 Coba9 electric power Spans 54-in 0one plan sheet plus two-page inotrocton booklet$ 1990 -~No 696NovaClone CL One-denigo malti-enent Sport filer 35 power Spans 42-rn$ 490 No 699 Top cat 90L-1 FF Robber PAl Indoor Stick Gliderhot der AMA Cat PlO & Stich Naimnal Records Spans 13125-in oTwo plan sheets$ 390 o 700 Randys DIme AC economical versatile Sport Trainer ideal 10 power Weigirs 33-az spans 50-in$ 575 0 115 No 701 Jumpln Gso AC high-performance Sportster designed fun fly events Weighs 3-9 spans 48-la 40-45 power $ 725 No 702 Nelnkel NE 18 PP Scale model 1924 German monoplane Hiline Mlei-6 geared elecfdc motor Spans 28-in 290 005~ v32][b-1-10-1-10]] C5 rcle numbers plans wish order best handling please include re- quests payment some other service plans order i 3262310314326332386447 460539578581588598603626 00 ua O628630644646650652654657 cs coo659661663664665666667669 ZZO671672674675676677678679 E681682684685686688689690 691692693694695696697698 0 qPlan 699700701702703704705 • price includes first class postage US delivery Air Mail over 300 miles Far orders nan-US address e add $258 far AIr Mall asia sand handlln Ian check money order payable US funds drawn US bank Model Aviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery 0 Please print carefullyEnclosed $ NAME_________________________ AMA No _________ _ ET CITY LTATh ZIP________ Plans orders must received AMA no later December 1 Model Aviation Christmas delivery again set best buy ACPs address Box 16621 Irvine CA 92714 Phone 714/250-1107 CSTs Gail Gewain sent Mighty Mini Vac set try must say after using bag wood veneer skins Thermal Eagle wings Im completely sold Just plug let humm away Being belt suspenders type took vacuum gauge off other pump make sure Mini-Vac pulling okay finger over hose indeed pulled six inches mercury connected bag must have pinhole leak because reading stayed bit under five inches good enough though As long bagging few other items worth mentioning CST has 35 ounce unidirectional carbon fiber fabric comes 10 inches wide sells $1200 per lineal yard beautifully thin 5 thousandths thick material perfect wings layer two lightweight glass top George Span Aerospace just introduced reusable Quick-Seal clips used seal ends vacuum bag tubes consist 743 inch solid plastic rod fits snugly inside fairly rigid Ushaped plastic channel 20 inches long just place bag over channel push rod channel thus forming easy doand undoseal $350 Another new item George pair pumps E-Z Lam preset dispense ounce per stroke part resin e per stroke part B hardener will blessing baggers dont have precision scale weighing epoxy New League Silent Flight Address LSF President Bob Steele communicated LSF now has new permanent mailing address 10173 St Joe Road Ft Wayne IN 46835 old Winfield IL PO box wrn continue forward mail year until August 1992 Bob says mail turnaround time will back 7 14 days used Members may phone Bob 219/485-1145 Mankato Model Soaring Society newly formed club North Mankato Minnesota Bob Botha driving force says has permission use nice 40-acre sod farm flying field Interested sailplaners electrics welcome too area should call Bob 507/345-1832 evenings weekends Southwest Winter Soaring Contest will again sponsored Central Arizona Soaring League held Phoenix February 1 2 will two one-day contests flying modified Triathalon precision duration tasks Sounds like good place schedule winter break info write Chuck Wehofer PO Box 2472 Chandler AZ 852gEli
Edition: Model Aviation - 1991/12
Page Numbers: 48, 49, 183, 184, 185, 186, 188, 190, 192
THE MODI 900 Greco Technologies Youre probably asking Whats Modi 900 what Greco Technologies honest can pass about either time material gleaned press release phone conversation gliders principal designer Greg Chun Greg works Greco Engineering division Greco Technologies told company new model manufacturing wants enter business adjunct engineering consulting work rendering shows attractive Modi Its specifications modem up-to-date thats about know Greg said have gone through three design versions examples final design about late August placed hands experienced fliers evaluation Entering model glider market especially high end isnt simple proposition Before offering glider sale design must thoroughly tested Construction details must proven workmanship shown high quality Most important gliders performance should compare well competition time read Greg says Modi will flying Southern California contest circuit should reporting real life results soon Until would seem best treat following press release news item heres Readers Digest version Greco press release Greco Technologies excited announce arrival Modi 900 open-class competition sailplane has 50-inch fiberglass Kevlar fuselage RG15 triple-taper-cut wings made out extruded blue foam glass lots uniweb carbon fiber cloth development unique sailplane undertaken Greco engineering technical consulting firm Pasadena its staff aerospace engineers sailplane enthusiasts allowed insight both technical aspects aerodynamics wants needs hobbyist Modi 900 now off drawing board production available public Modi 900 sets itself apart competition its strength durability layer plane designed built strength versus weight considerations mind wings start PRB blue foam base overlaid full layer top bottom 45 oz carbon fiber cloth plus second layer cloth top 10 inches bottom 15 inches root wing strength encased 14 oz fiberglass 48 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Dan Troxell Laguna Hills CA bought fuselage Trom Holana Kern Germany made own wings half-scale Grobe 103 Aero two-place glider will featured January Artists rendering beautiful Modi 900 Greco Technologies ship will come largely pre-built ARF Designed thermal multitask competition has 1 1Oin wingspan 903 sqln weight 70 80 ounces Chris Aho left holds dad craigs protoiype RnInum y uuuuIu De signs Anthem updated improved Lovesong Right winners 1991 Southwest contest Phoenix L-R front Ian Dou glas John Mangino beck Steve George Ed Holder both Leg ends Jim McCarthy Comet 89T 1992 Southwest Feb ruary will bigger belier yet cloth laminating epoxy root ribs sub ribs 14-in plywood laminated strips carbon fiber ensure endurance wing joiner rod -in carbon fiber rod encased brass tube giving tensile strength steel fraction weight Aluminum shaft hinges flaps ailerons included ensure rigidity under high pressures fuselage constructed Kevlar fiberglass Under testing Modi 900s wings withstood pressures approximately 375 foot pounds before delamination Other vital statistics include Span 110 wing 50-in fuse wing area 9026 sq weight 70-79 oz wing loading 110 oz/sq ft aspect ratio 1311 airfoils RG15 wing 5D8020 stabilizer kit comes two forms pre bagged Almost-Ready-to-Fly pre bagged kit comes wings rough stage just out bag kit takes 30 80 hours complete retails $595 ARF kit comes hardware installed finished wings takes 10 15 hours complete radio installation retails $895 information catalog contact Greco Technologies PO Box Anthem Dodgson Designs new name pedigree going back 1972 Bob Dodgson began manufacturing aileron glider kits Bob introduced 134-inch-span Windsong 1982 few years ago strengthened structure cope modern exuberant flying styles renamed Lovesong Songs have probably popular thermal competition ships during period Continued page 183 December 1991 49 10 South Pasadena CA 91031 call 1800-34-GRECO Ext 23 Feather Cut hot wire foam Cutter gives builders easy-to-do Pro quality results small low-cost vacuum pumps answer bag gers prayers Mighty Mini-Vac R Composite Structures Technology Nylon bag material breather felt sealant part system whole thing available CST $7495 Mid-Columbia/Blakeslee Continued page 179 heard planes touch Yeah glad Rich such smooth flier didnt flinch RC Soaring/Blakeslee Continued page 49 around country Bob says hes sold several thousand kits Now Bob has updated Song design based experience latest kit Saber Basically Anthem Song 5D7037 airfoil obechi sheeting flying surfaces aileron flap servos wings 48-inch bullet proof wing spar %-in joiner rod Bob says newsletter Second Wind prefer larger glider scale-like profile easy see great distances want added L/D long span high aspect ratio wing nothing available can match Anthem limited time will continue offer Lovesong have computer radio prefer slower flying yet high-performance tripped Eppler 214 airfoil sure get Lovesong theyre still production suggest wait gone AVIATION CHfISTMAS GIFTS SALE r VALUABLE COUPON ngall paper CORSAIR Procut/colored W/MOTOR $4 2 for- $6 ___ ~Precolored GIFT glder-sI ers & envelopes j2 $3 24 $5j CATALOG 1 3000 planes $18______ w/lst order- over PAPEII AIRPLANE club $1500$251 PAPER AIRPLANES II 433 NIHOA STREET KAHULUI HI 96732 USA ISeI uVoo will gone Prices Anthem Base kit $279 kit pre-built spars $345 kit pre-sheeted wings stabs rudder limited availabilitycheck before ordering $430 add $12 UPS shipping kits Write Dodgson Designs 21230 Damson Road Bothell WA 98021 Phone 206/776-8067 Monday-Friday 10 am 5 pm Pacific time Bobs Second Wind newsletter good way keep touch whats happening Dodgson Designs About 700 customers subscribe Two issues per year spring fall published cost modest $200 $300 Canadians An Anthem builder Craig Aho Mountlake Terrace near Seattle Craig called sing Anthems praises kind enough send photo letter picture Anthem promised son Chris holding Sorry poor quality photo Anthem fantastic flier using 5D7037 airfoil new spar system roll rate impressive speed range wide good top end aircraft still has best light lift qualitiesas did its predecessor Lovesong Ive hung up Falcon 880 now Ive got aircraft built prototype 60 hours dee 6rckoo/ Learn fly ottr planes private field Five Dr 6 day course $350 Open year round Send SASE Complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 scratch built wood parts builds fast large enough see easily has classic Song look Bob now offering new option Anthem Saber completely pre-sheeted flying surfaces additional $150 ATRCS Version 30 u p-grade brought guys Control Systems Laboratories Gene Englegau Tom Mroz Youll recall introduced ATRCS conversion Airtronics Module transmitter summer 1988 Shortly thereafter Airtronics contracted CSL provide similar hardware software very popular Vision transmitter CSLs latest announcement Now new improved software revision plus improved components can installed December 1991 183 ~IEKINO STEPPING INTO THE FUTURE OF R/C THE NEWEST IN ELECTRIC FUGHT PRODUCTS Units Feature Surface Mount Technology Light Weight Ultra-Slim Advanced Linear Design Low Current Draw lOMA High Power MOSFET Design 118 Cells 24 Volts 40 size motors Electronic Speed Controller ESC Electronic throw ad pat pend ESC 100120 amp coot 300 amp surge$5995 Electronic Switch ESW Fully adi reversihle point indicator ESW 23030 amp coot 75 amp surge$2995 ESW 26060 amp coot 150 amp surge$3995 ESW212O120 amp coot 300 amp surgeS5995 Please specify receiver coon ordering prod ucts Guaranteen 6 months trom purchase dote Call write details TREK IND regon Ave ord NY 11763 516 758-8170 LIGHTING SYSTEMS THE ORIGINALS. Still Best *RED 01Programmable Flashing Navigation Lights 9V$2495 #RED 02Strobe Light Ad] Rate 9V$1995 *RED 03Landing Lights 48V$3995 *RED 04Mars Rotating Beacon Ad] Rate 9 V$1995 #RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 #RED 23Real Strobe Light true zenon strobe 3V$2995 S SEE YOUR DEALER 0 SEND STAMPED ENVELOPE FOR RAM INFO unavaIlable locally send check money order full credit card info coat Item plus $400 $5 00 foreign immediate shipment Include full addresa U PS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 Near AiRES MOLLS METALS 500KS PRECOS5ON INSTRUMENTS ~COMPLETE COTOLOC $200 TDDLS CD C4M1U RoO OTs items sPr~iB2555ssss * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No 202 Air Cleaner Fine *275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc po Box3786 Cones Mchganaole Add $250 sh pp op M ch gao ea dents add 4% ua eu taxI 11376 Ridgeway RoadKensington OH 44427216 223-1950 DrtObatiC span $17995 span -$18995 Sportobatirs M 84span92span-S1to 84 Sportobatics 10 lbs ideal 90 2C 120 4C engines 92 versions 13 lbs perfect ST2000-3000 equivalent engines Both versions build quickly lite-ply & balsa fuselage & tail & foam wing Sportobatics fill need hotdog show-off sport planes Knife-edge takeoffs flat spins snap rolls rtobatics will anything can yet land like strainer Super Canopy Ohio CS-equipped 5P7 Vision 85P transmitters up-grade consists following features ATRCS 5P7 Module Transmitters Replaces Micro-processor improved versionallowing larger sophisticated programs Replaces setup memory chips larger capacity setdoubles setup memory 8 setups Up-grades ATRCS transmitters include new featuresAdds PCM fail safeAdds aircraft naming setup Vision 85P Transmitters above plus additional receiver capabilityFutaba FM-PPM 4-8 channels Both Vision 75P ATRCS transmitters will work RCD FM-PPM 4-8 channel receivers JR FM-PPM 4-8 channel receivers past would have write down setup information since $25995 Giant 99 x 16 Vinyl Clad Nylon Yellow Blue White Two-Color Combinations 8 rugged tube frame 10 easy-out stesi tent stakes nylon guy cords Folds neat hesvy-duty cardboard box goes up quickly complete instructions Optional name city state printed ends $6000 replacing setup memory Now due improvements methods no longer have will automatically save setup information generate paper hard copy restore setups new memory chips hard copy will sent back along transmitter records price version 30 up-grade just $9500 plus $400 UPS ground $1000 UPS blue shipping CA residents need add local sales tax Payment check money order Visa Mastercard Send ATRCS transmitter less antenna battery Control Systems Labs 238 So Hillview Dr Milpitas CA 95035 Phone 408/946-4142 Feather Cut Hot Wire Foam Wing Machine new foam wing cutter produced Tekoa Center Design company better known us LA area father/son team Roger Blayne Chastain As read last month Terry Edmonds Nationals report Blayne Senior age group flier placed first both Standard Unlimited class fact Unlimited class beat Open age winner Brian Agnew point Roger called back asked Id like try machine said betI want cut some cores anyway Roger thought Id suitable test subject because have never cut cores before course Ive seen done Julian Tamezs Channel Productions foam cutting video person other occasions Ive always built kits never cut own cores machine arrived very sturdy 55inch-long mailing tube small parts neatly individually packaged long poly bag whole thing went together about hour Its mainly just matter following easy instructions looking diagrams threading screws nuts together two main parts machine made blue anodized extruded aluminum right off bat know Roger has put lot effort project larger extrusion called body 51 inches long designed mounted edge work bench held place tape easy removal taped edge 24-inch-wide hollow core door sets table As can see photo mounted body two horizontal two vertical rollers four rollers can slide back forth tracks fixed place wing nuts rollers adjust machine 184 Model Aviation OHIO SUPERSTAR PRODUCTS INC ADAPTOR THROW-A-WAY YOUR COLiETS CHUCK & WRENCH USE OUR 0 TO jCHUCK DREMEL POWER TOOLS RUNS 100% TRUE & ONCENTRIC AT FULL RPM NO 501 ADAPTOR ESS cHUCK $1895 IDREMEL 850395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POUSHED STEEL USED FOR CUTTING PLASTIC WOOD SOFT METALS LEXAN PLEXIGLASS & ETC AVAILABLE IN 006 008 010 012 014 016 018020023 025 V028 032ThICKNESS NO 502ARBOR$800 OUR IDE DIAMETER @ $675 EA NO 503 014 X 114 SAW $800 SAWS ONLY WORK WITH OUR ARBOR MICRO SELFsTARTING TORCH No need Ifint matches Just press Piezo Self-Starting button -for micro size adjustable flame barns 237h up 3 hours Operates standard cigarette -hghter butane refiflabfe Tank fits comfortably palm hand made high-impact rubber allows safe non slip comfortable grip Sapplied can butane MT770 Blow Torctt $3500 ne butane MT771 Butane 5 oz0600 EASTERN TOOL& SUPPLY CO I49GRANDST -NYC NY 10013 WRITE FOR CATALOG$300 ORDERS 212-925-1006 WHEN ORDERING- PPD ADO $300 OFFICE 212-226-3749 CODADO$500FAX212-925-1010 cut cores up 50 inches long almost width taper rollers guide two very flexible 22 gauge power wires connect hot cutting wire alligator clips other ends wires connect low voltage power source power wires serve heat cutting wire also pull hot wire through foam block smaller extrusion called control arm 48 inches long pivoted left end body has two purposes compensate difference two power wires travel cutting tapered cores provide pull power wires Tapered cores tricky because cores root 10 inches tip nine inches power wire root travels pull length inch exactlyexplained below the tip control arm has graduated scale its face reads zero 100 use set cuts taper ratio ie tip/root pull lengths root end power wire always attached 100 tip wire attached number calculated pull power wires control arm carries 16-ounce lead weight mounted near middle gravity provides motive force hot wire mounted bow 27-inch length 3A inch x 2 inch wood 10-inch-long diameter music wire legs end wrap 18 thousandths T-370 cutting wire around leg bend legs together specified distance wrap around other leg bend legs provides proper tension wire Roger says cutting wire special neither ni-chrome nor stainless steel leader wire standard bow will cut cores up about 26 inches long might think kinda short designers going Schuemann planform type wing has multiple breaks leading edge need two three sections core per wing panel Since foam comes 24-inch-wide pieces its easy economical design two-foot sections can make own longer bow picking up piece wood local lumber yard Roger will soon coming out new aluminum bows 28 40 52 inches long will have feature being foldable legs thus saving storage space Lets now quickly review three ways can cut cores hand gravity electric motor drive Guiding bow hand straightforward method However get good consistent cores youand perhaps helper other endneed practice steady nerves make constant speed cuts Electric motor powered cutters can quite sophisticated require lot rigging gears belts such important take experienced operator correctly regulate both December 1991 185 Funniest Amateur Video Ever R/C FOLLIES PRESENTS CraziestWackiest Funniest Model Airplane Wrecks Youll Ever See! Over 30 Minutes CRASH after CRASH after CRASH Flying off lake smashing ice What happens hand launch forget turn radio plane seaplane turn treeplane Rocket engine mounted Eindecker Four wrecked planes turned Twin flew just lot Bad flying much Dont miss one-of-a-kind exciting funny video offer youll ever see $1 995 plus $3 shipping handling HOLLAND SOUND SERVICES 1 Dunham Dr Dunmore PA 18512 phone 717-346-8742 VISA-MASTERCARD PA Orders add 6% sales tax speed cut heat wire Otherwise foam will burn excessively too hot/slow wire will drag too much too cold/fast As mentioned above Feather Cut machine gravity type cutter Its beauty simplicity set heat cutting proceeds automatically its own pacea feature well suited new users As said Im new game myself Feather Cut machine has couple novel features appear make work better other designs Ive seen feature sliding lead weights legs bow cutting airfoils bottom profile slide weights toward hot wire wire maintains good contact templates going downhill cutting top profile slide weights back wire has less downforce templates going uphill second related feature bow works horizontal position small tailwheel middle wood part bow allows roll across work surface during cutting old method operate bow vertically suspended springs rubber bands course another potential source adjustment error hardest part cutting foam cores making templates instructions Roger recommends second motion S Discover SECRET TO HASSLE-FREE CHARGING Dont miss perfect day because uncharged batteries amazingly simple AUTO-TRICKLE ADAPTER converts ALL overnight chargers FULLY AUTOMATIC TRICKLE CHARGERS Nothing else like Simply plug wall plug overnight chargers push button forget about batteries whole fleet will ready next day week month year Nothing solder connectors buy 100% solid slate device safely reduces chargers output pulse trickle after 16 hours Directly supports 1 3 chargers However powerful 120 Watt capacity easily HANDLES UP TO 30 CHARGERS Nothing else comes close convenience simplicity safety cost effectiveness T I1 E Hurry secret out Get AUTO-TRICKLE ADAPTER TODAY YOUR LOCAL HOBBY DEALER send $3995 5&H Directly Tejera Microsystems Engineering Inc 800 729-9210 PO nox 340608 Tampa Florida 33694 ADVANCED AERO PRODUCTS VS & Os SIMPASS 120 EXI4A5BT SYSTEMSrii 55 50155 toO sFoOUATO4 5555 HWnE5 W5 PATTERN MR5FT AND WINATS 551 ODvANCeD ASRO poosacos OTT 505 25-C 5450 T5 75553 554 954-3945 using Chuck Andersons Airfoil Plot Program draw full size airfoil profiles computer printer Chucks program $25 Address Box 305 Tullahoma TN 37388 Phone 615/4555788 glue printed airfoil plots horizontal grade Formica horizontal thicker vertical grade 3M No 77 spray adhesive cut out jig saw accurately sand polish surface hot wire rides Note need two paper plots per wing section because airfoils template made two parts matching pairs pairs cutting airfoils bottom profile other top type template must used Feather Cut machine because always cuts top surface template early days foam cutting templates same wing rib used two-piece templates have proven better kind core cutting because register work surface unwanted twists wont introduced sketches below show typical pair templates SD 8020 stabilizer section dashed lines indicate actual section chord spaces before after actual chord hot wire lead-in lead-out ffp7j.4t1 #A 3orT-l cur rIPiPLAT 4A r GuP operation pin sharpened pop rivets work fine bottom templates leading edge always cut first ends foam block must first pre-cut cores planform hand using hot wire bow using Formica triangles Continued page 188 186 Model Aviation Model ATAcxl works existing NiCd overnight C/10 chargers Yes works cordless power tools toys individual cell chargers ste THE WIREMASTER TM ndcrfcoler 4 different models wire bending tools offet Also available Alloy Stainless Aluminum Melric hardware Checkyour dealet first un available send business size SASE free catalog JCM COMPANY 114 washington Torr Dopt Waukogan IL 60085 Efficient wide tips thinner airfoil sections combine greater thrust noise suppresion Will out-perform wood & other plastics water sand & gravel runways Made strong 33% glass-filled nylon RPM rating 160K divided diameter inches 1/2A Series 55x4 55x45 6x35 6x3 6x4$ 99 GIF Series 7x4 7x6125 8x4 8x6135 9x4 9x5 9x6 9x8 95x6155 10x6 10x7 10x8.. 175 11x6 11x7 11x75 11x9195 K Series 12x6 12x8 285 13x6 13x8 385 14x6 14x8 495 15x8 15x10 545 665 16x6 16x8 Antique Series 10x5 11x6 12x6 13x6 14x7 16x7 225 245 335 435 545 715 See local hobby dealer Master Airserew propellers accessories Windsor Propeller Co 3219 Monier Circle Rancho Cordova CA 95742 57-6 AL guides Make sure templates resting squarely against perfectly flat work surface foam well weighted down make bottom cut replace bottom templates top ones top cut template pairs must have exactly matching pin holes replace bottom template top same holes foam used otherwise cuts will off Because bottom cut first core settles its bottom bed need compensate templates width wire-cut minimized hot wire cuts core about 10 thousandths undersize vacuum bag cores glass/carbon fiber undersize about right allow skin thickness Once templates made found using Feather Cutter piece cake Im type person Murphy mind because can usually find some way screw up time try something new machine worked beautifully right out box encountered no problems making perfect looking cores say highly unusual Just get everything set hot wire resting templates four rollers adjusted power wires attached hot wire control arm turn power supplyand away goes foam makes very satisfying sizzling noise hot wire slices through about inch per minute need sit watch go catching bow wire comes out trailing edge can use low voltage up 28 volts power supply like Variac adjustable transformer opted get Rogers Thermal Generator because no-fuss operation unit makes perfect companion Feather Cutter Roger says has fool-proof wire temperature control certainly found true simply adjust knob center dial needle Thermal Generator senses resistance whatever length wire using automatically supplies proper amount power heat wire about 2122250 Simplicity itselfl & MODEL BUILDING 7SERVICE RADIO CONTROL PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 wATcI4oGuE ROAD 8 SEAIEN SAM 8 NY 10314 As foam Roger recommends using Dow PRB Plaster Ready Board blue material same blue Dow Square Edge insulating foam PRB has density two pounds per cubic foot rated 25 psi has open aggressive cell structure Roger says want build killer wing consider Dow HI-l 15 High Load board rated 115 psi six lb/cu ft difficult locate though Finally lets get back tapered core paradox wing root 10 inches tip nine inches youd think taper ratio set control arm would 900 no standard procedure Continued page 190 0 0 0 0 j 0 0 0 0 Ousrlerffiaster Sport lips 73 Span 035 similar $21 build FUNK 385-C$25i~ 1/4 scale 108' Span 12 four stroke scale 84 Span 61 four otroke$21 o photo reduced igaS KINNER SPORTITER K 4 scale 117 Span 035 S cylinder $25 ylinder radial scale 76 Span 61 four stroke $1 o reduced DAVIS 01K scale 905 Span 035 5 cylinder radialp~pPs r/6 scale 603 Span 45 four stroke$1 500 photo reduced STITS PLAYHOY$25I /a scale 88 opus 035 larger 188 Model Aviation Leader Small Airfoil Technology MASIE 11 AHISCREW TAYLOFICRAFT q in 12 $250 61 DGAO Piano O0riOgl PHOTO DOCUMENTATION PACKS uvu"- nrr Scule Piano Alt PLANS NOLLE5 OOIPPFS P5 C cdli Insirocion Sonidet e.money Order COOs clip power wires hot wire inch either end foam block root end power wire actually travels little 10 inches tip end wire travels little less nine inches determine actual lengths travel easiest way place pre shaped foam block piece paper project end inch straight edge pencil measure projected ends Feather Cut machine sells $13950 plus $850 S&H Thermal Generator $9450 plus $450 S&H Both may ordered Tekoa Center Design 3219 Canyon Lake Drive Hollywood CA 90068 Phone/Fax 213/469-5584 New Low-Cost Vacuum Pumps piece April column about making vacuum pump refrigerator compressor generated lot interest knowing what now wouldnt have bothered making Both Composite Structures Technology Aerospace Composite Products WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries fh chargers need pacd6aget wet Cell & Cycler-Chargec *23996 Fits 48V RX 96V Tx p00ll5Plus $750 S&HaGeGelled Cell Others available write calle erieS Regular Model. 96 field kit sinaiPlus $500 P&H electriC boat batteriesSpecify 612 24V 8qnL Canton II spoil winch large boat andPlan $600 P&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssE Ion OlloineailooPO Box 221 605ga-5g24126316V Bill Eff get * says Only Piano Pattetott Sets give anvorted designs want have selected best classic designs time foe pvc choose tcer patterns tot part ate impottast eaclusice feature Curtiss HAWK PlC 9400 wingspan68 length 2268 sq snieg aeon Fnr 13 23 ClO engines annel RIG RCOS 14 $2498 7 ii Curtlss FALCON 0-I B/A3 114 wingspan ength RCO$13 -- g2ggh 3160 sq wing area P023 tn 3h CID engines annel RIG One-Tb dSae NVTI~PpeT Pee PA22 38 ~jn7413SaePpe Cub 3 Quarter Scale- WWI0$7f SE-SA wing area 78 22 engines gg/e wing spane222g 5g PCO$-7 h0 SPAD C-XIII 7g%wingspan212P5gin wing atna 13 31 nogines Capable lynt captotes imagination RCOS-h 5 FOKKER DR-i TRIPLANE . 72 wing spen sg 0K wing atno 78 1 h$ engines PCOSh 8 5OPWiTH CAMEL P1 Sd wing span 1 5g wing area 11 lbs wlo SIC woodS balsa consttuction over hh sg ft drawings PCOS-t 1 5 Fokker DVII P$ wiognoan 2220 Sif iv w $ $0 2h cid engine ch SCOSS h 1/4383810 Albatros DVa d War-f FIghts -gairrsynoontecsamekn Pwntaett y cc$ioder roth P Shrmwe ergee ii tee silihOPli OnritOOO$utaeotmm w OteitO Onni tOns S Orta 500* ncnelr vets ano 5i gotapeenedsyeaaarctsefl iCtfttp ovim 000017 tetlOtnOt den ic perlano arigealca Iv ne pci en oem tepernien nat reocaaO6eieiCOatgeaae erpre padr end Sitar 00000$ isodog gee FOrt3102301 0 pogroac weOe Oppor rOiOsliessnCIOO wirgepan 4 COnnoni nic g Overall Leogro itied Scale Liar eanom OrtOii 2072 sy wing grea a Wirg Panels OuatOt Scala 1/3 Scale MONOCOUPE NA Wingspan 92 Onerall Length - 2100 sq Wing Area Fnr 29 en 38 CID hegines RC3S-4 Bill Ellinget Foonding Mewbnt AMA NFF5 Hall nt Fewer Pricee tor complete plans sub asnemclv S detailed parts hOts PLEASE ADD g3gO shipping wailing tobsl sew 1991 Plan Seer OrvOhere Irafriodasle ovar firel orderli WE TECHNICAL SERVICES RO Box 420144-S Atlanta GA 30342 190 Model Aviation No NITRo Runs 5% Gets about 1 minute ounce fuel OPS MAxI 30 18 Statically dynamically balanced 5 intake ports shaft induction roller ball bearings long stroke pump carb readily available parts l8x8TopfightM.8l85rPm 20 x 6 Zinger8036 rpm 24 x 8 Zinger 30 rpm stock VS parts 54sPeoPleof now selling low cost continuous-run littlebreather strip T-fitting just $5 RC Soaring/Blakesleepumps work great onlymore set obviously way go Continued page 188drawback its too serious thatCST has convenient toll free order pull maximum six inches ofnumber l-800-338-lCST Aerospaces mercury Six inches shouldpump called E-Z Vac goes E-Z use white foam anyway whenLam ACPs excellent epoxy laminating using blue foam cores much vacuumresin sells $6500 itself probably adequate work$7500 both plus $400 S&H set CST calls pump Mighty Mini-similar CSTs ACP set also Vac sells $6995 itself andincludes very neat hose fitting $7495 both plus $600 S&H set asattaches flat surface bag plus shown photo includes threetwo Quick-Seal clips below yards nylon bagging tube sealant ntinued page 192 opper iant Semi-Scale Sportster reminiscent 1930s Heath midwing homebuilt Spans 85-in 90 power 2 plan sheets No 704 Arrow$500 CL Stunt Wing inspired 1960s-vintage Bill Netzeband designs new PAW 049 diesel engine Spans 298-in No 705 Zenith$200 FF Hand Launch Glider serious competition Wing DT spans 18-in 35-38-gr $375 No 193Selleito CL Stunt model lMcDonaIdl winner 1976 1999 1982 FAI World Champs$ No 262crashmaster CL crash-proof trainer two sizes15/30 35/40 power No 3101930 Ftet Biplane AC Sport Scale 35/40 4-channel Wingspan 56-in 4-scale Two plan sheets$625 Mo 314Drake II AC Ken Willards flying boat 3channel 15 power Fly land wofi removable gearS375 No 326Taylor cub AC Don Sinus Schoolyard-Scale tar 049 power 2-3 channel Spans 50-inS359 No 332Zephyr AC small 2-channel Glider hand-launch tow thermal slope soanog$290 No 368LaSer 200 AC Sport Scale replica championOhip Aerobatic flier 40 power 4-5 chanoel Two plan sheets$1075 No 447twA MIsS America AC Old Timer Texaco model 049 910w 2 chaneels$650 No 4604-40 AC shoolder-wiog Sport flier 4-cycle 40 power 4 channels$650 No 539Simltar slow-MotIon 15 AC Tailless flying wing 15 engines spans 60 ones 3-cb AC$359 No 578Schweizer 1-260 AC Quarter-scale Sailplane spans 125 Two plan sheets$1475 6No 581Gee Bee Model Y AC Golden Age Racer spano 72 scale 60 power Three plan sheets$ 1175 0No 588Marish AC Slope-Soaring Sailplane spans 41 uses 2 AC channels$ 425 No 598coronae 150 AC-Assist Old-Timer enlarged 150% opens 7210 uses 40-size 4-strokel 30-size 2-stroke$ 950 cjNo 603Sparrow Hawk P-30 FF Competition robber-power plase won 97 Nuts Spans 30 in$ 225 No 626Sweepee AC Sport/Paltem canards forward-swept wing spons 64 in. uses 40 power 2 plan sheet SI$ 1300 No 626Prime cue AC Sport/Aembatic plane spans 99 in. sans Quadra 35140-size power Two plan sheetsS 1390 --No 630OrigInal Fly Baby AC Old-Timer spans 72 in. uses 19125 2-cycle 49 4-cycle power 12 plan sheetsl$ 1150 0CNo 644Bellanca columbIa AC Schoolyard Scale 2 AC channels hA engioe Wingspan 46 ur$ 575 No 646Winter Hawk FF Rubber-power Coupe dI-liver compotfilan plane spano 47 inS 375 CO anNo 65047/60 RC Special AC Aerobatic sport plane 49 power spans 61 3 plan sheets$ 1975 05 0 No 602Der Pledermauw AC Low-wing sport plane 20/25 power spons 55 in$ 675 o -No 6541amecat AC Trainer/sportoter styled like F14 spans 66 49/61 power Four plan sheets$ 1525 .No 667Super Squire AC Troiner 35/40 2-stroke 53 4-stroke power spans 56/a in$ 759 0 0No 659Boom Box FF Wakefield Robber compettion plane spans 54 in$ 490 0No 601Embry-Omatic FF Embryo Endurasce mbber-power plane spans 20 inS 290 No 663Pee Patch AC Sportster spans 69 uses 49150 4-stroke power 2 plan sheets$ 990 E 0No 664Stuka Stunt CL Stutter semiscale spans 37/a inS 590 No 605conacierittous Oblector FF Moloihill Rubber competition pfane spots 59 flat$ 575 503 66 s AC Sportoter spans 49 uses hot 29132 power 12 plan sheets 75 No 607AT-6 CL Semiocale profile StonIer 35/40 power spans 47 inS 575 6 ENo 609Roto Raven AC Sailplane unique twist-wing control Spons 76-ie Requires elevon nasing$ 650 z CUNo 671cessna cardInal FF Reminder Scale sport flier power spans 39-isS 575 INo 672Krackerjac AC updated version pioneer sport plane spans 74-in two plan sheetsS 1375 No 674 Krumpier AC 975-powered Electric semi-scale bi-winger spoan $ 575 oS 225 No 675BOF-1 FF twin-tailed sport filer Coo 02 Pee Wee engine spans 25-in No 676HIlIner AC twin-electric high-wing Sport ship denigned H6ine lmp-39 motor Has tricycle gear spans 40in.$ 406 -C-No 677ThunderbIrd CL Stutter 29-35 power Two plan sheets drawn original 1982 Veca Spans 54 in$ 975 eNo 676Sean Box FF Woof Coast Bostonian Outdoor design Spono 10//a in$ 159 -o 05oNo 679BIg Blngot Large AC Sportster sporo 95 120-24 power Two plan sheets$ 1790 SNo 6011969 Beds BD-4 FF Rubber Scale modni spans 18 in$ 325 No 682B T VIntage Trainer AC Reminder-Scala Sportster 20-size engises Spans 47% Two plan sheets$ 1156 No 684Staggerwlng Beech 3-Channel RC Schoolyard-Scale to-wieg Sportsler 049 power Spans 32-in$ 375 50lbNo 685Akro-Bat CL Stunner high-performance 049 engines Spons 32-in$ 230 E bNo 686Fotler AC Pattens-typa sport plane 2- 4-cycle power Spans 65-in$ 725 0 688 alth GlIder PP robberband-launched toam/baise Canard Catapufi/Steath Obder combo Spaes 9-in 60 No 689Thomas Morse Scout 54C AC 4-scale biplane 90 power Spaos 63-in 3 plaa oheets$ 1975 IDNo 690p-62B TwIn Muateng CL Profile Sportoter twin MVVS 25 diesels Spans 48-in 2 plari sheets$ 1050 C 0No 6911927 NL2 FF Scale model Polish bomehoifi tar 8-8 watt motor mkber 902 Spans 29-re$ 225 0No 6923 Meter Scooter AC High Performonce Sailplane Spons 118-in 2 plan sheets$ 1159 693csrdlnal classic CL Sport Stunter 35 power Spuos 50-in$ 575 CNo 694AIrmaster AC Canard Sportoter lnr two 40 push-pull engines ar 60 pusher tractor Spans 66-in 2 plan sheets 5 1475 -0No 695Spirit St Louis CL Scale replica far 1525 power Spans 46-in$ 575 0No 696Pole cat FF P-30 Class AMA Senior record holder Spans 31-in $ 225 No 697Tlgerkltten 8 AC High-performance Sport Aembatic design 05/15 Coba9 electric power Spans 54-in 0one plan sheet plus two-page inotrocton booklet$ 1990 -~No 696NovaClone CL One-denigo malti-enent Sport filer 35 power Spans 42-rn$ 490 No 699 Top cat 90L-1 FF Robber PAl Indoor Stick Gliderhot der AMA Cat PlO & Stich Naimnal Records Spans 13125-in oTwo plan sheets$ 390 o 700 Randys DIme AC economical versatile Sport Trainer ideal 10 power Weigirs 33-az spans 50-in$ 575 0 115 No 701 Jumpln Gso AC high-performance Sportster designed fun fly events Weighs 3-9 spans 48-la 40-45 power $ 725 No 702 Nelnkel NE 18 PP Scale model 1924 German monoplane Hiline Mlei-6 geared elecfdc motor Spans 28-in 290 005~ v32][b-1-10-1-10]] C5 rcle numbers plans wish order best handling please include re- quests payment some other service plans order i 3262310314326332386447 460539578581588598603626 00 ua O628630644646650652654657 cs coo659661663664665666667669 ZZO671672674675676677678679 E681682684685686688689690 691692693694695696697698 0 qPlan 699700701702703704705 • price includes first class postage US delivery Air Mail over 300 miles Far orders nan-US address e add $258 far AIr Mall asia sand handlln Ian check money order payable US funds drawn US bank Model Aviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery 0 Please print carefullyEnclosed $ NAME_________________________ AMA No _________ _ ET CITY LTATh ZIP________ Plans orders must received AMA no later December 1 Model Aviation Christmas delivery again set best buy ACPs address Box 16621 Irvine CA 92714 Phone 714/250-1107 CSTs Gail Gewain sent Mighty Mini Vac set try must say after using bag wood veneer skins Thermal Eagle wings Im completely sold Just plug let humm away Being belt suspenders type took vacuum gauge off other pump make sure Mini-Vac pulling okay finger over hose indeed pulled six inches mercury connected bag must have pinhole leak because reading stayed bit under five inches good enough though As long bagging few other items worth mentioning CST has 35 ounce unidirectional carbon fiber fabric comes 10 inches wide sells $1200 per lineal yard beautifully thin 5 thousandths thick material perfect wings layer two lightweight glass top George Span Aerospace just introduced reusable Quick-Seal clips used seal ends vacuum bag tubes consist 743 inch solid plastic rod fits snugly inside fairly rigid Ushaped plastic channel 20 inches long just place bag over channel push rod channel thus forming easy doand undoseal $350 Another new item George pair pumps E-Z Lam preset dispense ounce per stroke part resin e per stroke part B hardener will blessing baggers dont have precision scale weighing epoxy New League Silent Flight Address LSF President Bob Steele communicated LSF now has new permanent mailing address 10173 St Joe Road Ft Wayne IN 46835 old Winfield IL PO box wrn continue forward mail year until August 1992 Bob says mail turnaround time will back 7 14 days used Members may phone Bob 219/485-1145 Mankato Model Soaring Society newly formed club North Mankato Minnesota Bob Botha driving force says has permission use nice 40-acre sod farm flying field Interested sailplaners electrics welcome too area should call Bob 507/345-1832 evenings weekends Southwest Winter Soaring Contest will again sponsored Central Arizona Soaring League held Phoenix February 1 2 will two one-day contests flying modified Triathalon precision duration tasks Sounds like good place schedule winter break info write Chuck Wehofer PO Box 2472 Chandler AZ 852gEli
Edition: Model Aviation - 1991/12
Page Numbers: 48, 49, 183, 184, 185, 186, 188, 190, 192
THE MODI 900 Greco Technologies Youre probably asking Whats Modi 900 what Greco Technologies honest can pass about either time material gleaned press release phone conversation gliders principal designer Greg Chun Greg works Greco Engineering division Greco Technologies told company new model manufacturing wants enter business adjunct engineering consulting work rendering shows attractive Modi Its specifications modem up-to-date thats about know Greg said have gone through three design versions examples final design about late August placed hands experienced fliers evaluation Entering model glider market especially high end isnt simple proposition Before offering glider sale design must thoroughly tested Construction details must proven workmanship shown high quality Most important gliders performance should compare well competition time read Greg says Modi will flying Southern California contest circuit should reporting real life results soon Until would seem best treat following press release news item heres Readers Digest version Greco press release Greco Technologies excited announce arrival Modi 900 open-class competition sailplane has 50-inch fiberglass Kevlar fuselage RG15 triple-taper-cut wings made out extruded blue foam glass lots uniweb carbon fiber cloth development unique sailplane undertaken Greco engineering technical consulting firm Pasadena its staff aerospace engineers sailplane enthusiasts allowed insight both technical aspects aerodynamics wants needs hobbyist Modi 900 now off drawing board production available public Modi 900 sets itself apart competition its strength durability layer plane designed built strength versus weight considerations mind wings start PRB blue foam base overlaid full layer top bottom 45 oz carbon fiber cloth plus second layer cloth top 10 inches bottom 15 inches root wing strength encased 14 oz fiberglass 48 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Dan Troxell Laguna Hills CA bought fuselage Trom Holana Kern Germany made own wings half-scale Grobe 103 Aero two-place glider will featured January Artists rendering beautiful Modi 900 Greco Technologies ship will come largely pre-built ARF Designed thermal multitask competition has 1 1Oin wingspan 903 sqln weight 70 80 ounces Chris Aho left holds dad craigs protoiype RnInum y uuuuIu De signs Anthem updated improved Lovesong Right winners 1991 Southwest contest Phoenix L-R front Ian Dou glas John Mangino beck Steve George Ed Holder both Leg ends Jim McCarthy Comet 89T 1992 Southwest Feb ruary will bigger belier yet cloth laminating epoxy root ribs sub ribs 14-in plywood laminated strips carbon fiber ensure endurance wing joiner rod -in carbon fiber rod encased brass tube giving tensile strength steel fraction weight Aluminum shaft hinges flaps ailerons included ensure rigidity under high pressures fuselage constructed Kevlar fiberglass Under testing Modi 900s wings withstood pressures approximately 375 foot pounds before delamination Other vital statistics include Span 110 wing 50-in fuse wing area 9026 sq weight 70-79 oz wing loading 110 oz/sq ft aspect ratio 1311 airfoils RG15 wing 5D8020 stabilizer kit comes two forms pre bagged Almost-Ready-to-Fly pre bagged kit comes wings rough stage just out bag kit takes 30 80 hours complete retails $595 ARF kit comes hardware installed finished wings takes 10 15 hours complete radio installation retails $895 information catalog contact Greco Technologies PO Box Anthem Dodgson Designs new name pedigree going back 1972 Bob Dodgson began manufacturing aileron glider kits Bob introduced 134-inch-span Windsong 1982 few years ago strengthened structure cope modern exuberant flying styles renamed Lovesong Songs have probably popular thermal competition ships during period Continued page 183 December 1991 49 10 South Pasadena CA 91031 call 1800-34-GRECO Ext 23 Feather Cut hot wire foam Cutter gives builders easy-to-do Pro quality results small low-cost vacuum pumps answer bag gers prayers Mighty Mini-Vac R Composite Structures Technology Nylon bag material breather felt sealant part system whole thing available CST $7495 Mid-Columbia/Blakeslee Continued page 179 heard planes touch Yeah glad Rich such smooth flier didnt flinch RC Soaring/Blakeslee Continued page 49 around country Bob says hes sold several thousand kits Now Bob has updated Song design based experience latest kit Saber Basically Anthem Song 5D7037 airfoil obechi sheeting flying surfaces aileron flap servos wings 48-inch bullet proof wing spar %-in joiner rod Bob says newsletter Second Wind prefer larger glider scale-like profile easy see great distances want added L/D long span high aspect ratio wing nothing available can match Anthem limited time will continue offer Lovesong have computer radio prefer slower flying yet high-performance tripped Eppler 214 airfoil sure get Lovesong theyre still production suggest wait gone AVIATION CHfISTMAS GIFTS SALE r VALUABLE COUPON ngall paper CORSAIR Procut/colored W/MOTOR $4 2 for- $6 ___ ~Precolored GIFT glder-sI ers & envelopes j2 $3 24 $5j CATALOG 1 3000 planes $18______ w/lst order- over PAPEII AIRPLANE club $1500$251 PAPER AIRPLANES II 433 NIHOA STREET KAHULUI HI 96732 USA ISeI uVoo will gone Prices Anthem Base kit $279 kit pre-built spars $345 kit pre-sheeted wings stabs rudder limited availabilitycheck before ordering $430 add $12 UPS shipping kits Write Dodgson Designs 21230 Damson Road Bothell WA 98021 Phone 206/776-8067 Monday-Friday 10 am 5 pm Pacific time Bobs Second Wind newsletter good way keep touch whats happening Dodgson Designs About 700 customers subscribe Two issues per year spring fall published cost modest $200 $300 Canadians An Anthem builder Craig Aho Mountlake Terrace near Seattle Craig called sing Anthems praises kind enough send photo letter picture Anthem promised son Chris holding Sorry poor quality photo Anthem fantastic flier using 5D7037 airfoil new spar system roll rate impressive speed range wide good top end aircraft still has best light lift qualitiesas did its predecessor Lovesong Ive hung up Falcon 880 now Ive got aircraft built prototype 60 hours dee 6rckoo/ Learn fly ottr planes private field Five Dr 6 day course $350 Open year round Send SASE Complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 scratch built wood parts builds fast large enough see easily has classic Song look Bob now offering new option Anthem Saber completely pre-sheeted flying surfaces additional $150 ATRCS Version 30 u p-grade brought guys Control Systems Laboratories Gene Englegau Tom Mroz Youll recall introduced ATRCS conversion Airtronics Module transmitter summer 1988 Shortly thereafter Airtronics contracted CSL provide similar hardware software very popular Vision transmitter CSLs latest announcement Now new improved software revision plus improved components can installed December 1991 183 ~IEKINO STEPPING INTO THE FUTURE OF R/C THE NEWEST IN ELECTRIC FUGHT PRODUCTS Units Feature Surface Mount Technology Light Weight Ultra-Slim Advanced Linear Design Low Current Draw lOMA High Power MOSFET Design 118 Cells 24 Volts 40 size motors Electronic Speed Controller ESC Electronic throw ad pat pend ESC 100120 amp coot 300 amp surge$5995 Electronic Switch ESW Fully adi reversihle point indicator ESW 23030 amp coot 75 amp surge$2995 ESW 26060 amp coot 150 amp surge$3995 ESW212O120 amp coot 300 amp surgeS5995 Please specify receiver coon ordering prod ucts Guaranteen 6 months trom purchase dote Call write details TREK IND regon Ave ord NY 11763 516 758-8170 LIGHTING SYSTEMS THE ORIGINALS. Still Best *RED 01Programmable Flashing Navigation Lights 9V$2495 #RED 02Strobe Light Ad] Rate 9V$1995 *RED 03Landing Lights 48V$3995 *RED 04Mars Rotating Beacon Ad] Rate 9 V$1995 #RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 #RED 23Real Strobe Light true zenon strobe 3V$2995 S SEE YOUR DEALER 0 SEND STAMPED ENVELOPE FOR RAM INFO unavaIlable locally send check money order full credit card info coat Item plus $400 $5 00 foreign immediate shipment Include full addresa U PS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 Near AiRES MOLLS METALS 500KS PRECOS5ON INSTRUMENTS ~COMPLETE COTOLOC $200 TDDLS CD C4M1U RoO OTs items sPr~iB2555ssss * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No 202 Air Cleaner Fine *275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc po Box3786 Cones Mchganaole Add $250 sh pp op M ch gao ea dents add 4% ua eu taxI 11376 Ridgeway RoadKensington OH 44427216 223-1950 DrtObatiC span $17995 span -$18995 Sportobatirs M 84span92span-S1to 84 Sportobatics 10 lbs ideal 90 2C 120 4C engines 92 versions 13 lbs perfect ST2000-3000 equivalent engines Both versions build quickly lite-ply & balsa fuselage & tail & foam wing Sportobatics fill need hotdog show-off sport planes Knife-edge takeoffs flat spins snap rolls rtobatics will anything can yet land like strainer Super Canopy Ohio CS-equipped 5P7 Vision 85P transmitters up-grade consists following features ATRCS 5P7 Module Transmitters Replaces Micro-processor improved versionallowing larger sophisticated programs Replaces setup memory chips larger capacity setdoubles setup memory 8 setups Up-grades ATRCS transmitters include new featuresAdds PCM fail safeAdds aircraft naming setup Vision 85P Transmitters above plus additional receiver capabilityFutaba FM-PPM 4-8 channels Both Vision 75P ATRCS transmitters will work RCD FM-PPM 4-8 channel receivers JR FM-PPM 4-8 channel receivers past would have write down setup information since $25995 Giant 99 x 16 Vinyl Clad Nylon Yellow Blue White Two-Color Combinations 8 rugged tube frame 10 easy-out stesi tent stakes nylon guy cords Folds neat hesvy-duty cardboard box goes up quickly complete instructions Optional name city state printed ends $6000 replacing setup memory Now due improvements methods no longer have will automatically save setup information generate paper hard copy restore setups new memory chips hard copy will sent back along transmitter records price version 30 up-grade just $9500 plus $400 UPS ground $1000 UPS blue shipping CA residents need add local sales tax Payment check money order Visa Mastercard Send ATRCS transmitter less antenna battery Control Systems Labs 238 So Hillview Dr Milpitas CA 95035 Phone 408/946-4142 Feather Cut Hot Wire Foam Wing Machine new foam wing cutter produced Tekoa Center Design company better known us LA area father/son team Roger Blayne Chastain As read last month Terry Edmonds Nationals report Blayne Senior age group flier placed first both Standard Unlimited class fact Unlimited class beat Open age winner Brian Agnew point Roger called back asked Id like try machine said betI want cut some cores anyway Roger thought Id suitable test subject because have never cut cores before course Ive seen done Julian Tamezs Channel Productions foam cutting video person other occasions Ive always built kits never cut own cores machine arrived very sturdy 55inch-long mailing tube small parts neatly individually packaged long poly bag whole thing went together about hour Its mainly just matter following easy instructions looking diagrams threading screws nuts together two main parts machine made blue anodized extruded aluminum right off bat know Roger has put lot effort project larger extrusion called body 51 inches long designed mounted edge work bench held place tape easy removal taped edge 24-inch-wide hollow core door sets table As can see photo mounted body two horizontal two vertical rollers four rollers can slide back forth tracks fixed place wing nuts rollers adjust machine 184 Model Aviation OHIO SUPERSTAR PRODUCTS INC ADAPTOR THROW-A-WAY YOUR COLiETS CHUCK & WRENCH USE OUR 0 TO jCHUCK DREMEL POWER TOOLS RUNS 100% TRUE & ONCENTRIC AT FULL RPM NO 501 ADAPTOR ESS cHUCK $1895 IDREMEL 850395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POUSHED STEEL USED FOR CUTTING PLASTIC WOOD SOFT METALS LEXAN PLEXIGLASS & ETC AVAILABLE IN 006 008 010 012 014 016 018020023 025 V028 032ThICKNESS NO 502ARBOR$800 OUR IDE DIAMETER @ $675 EA NO 503 014 X 114 SAW $800 SAWS ONLY WORK WITH OUR ARBOR MICRO SELFsTARTING TORCH No need Ifint matches Just press Piezo Self-Starting button -for micro size adjustable flame barns 237h up 3 hours Operates standard cigarette -hghter butane refiflabfe Tank fits comfortably palm hand made high-impact rubber allows safe non slip comfortable grip Sapplied can butane MT770 Blow Torctt $3500 ne butane MT771 Butane 5 oz0600 EASTERN TOOL& SUPPLY CO I49GRANDST -NYC NY 10013 WRITE FOR CATALOG$300 ORDERS 212-925-1006 WHEN ORDERING- PPD ADO $300 OFFICE 212-226-3749 CODADO$500FAX212-925-1010 cut cores up 50 inches long almost width taper rollers guide two very flexible 22 gauge power wires connect hot cutting wire alligator clips other ends wires connect low voltage power source power wires serve heat cutting wire also pull hot wire through foam block smaller extrusion called control arm 48 inches long pivoted left end body has two purposes compensate difference two power wires travel cutting tapered cores provide pull power wires Tapered cores tricky because cores root 10 inches tip nine inches power wire root travels pull length inch exactlyexplained below the tip control arm has graduated scale its face reads zero 100 use set cuts taper ratio ie tip/root pull lengths root end power wire always attached 100 tip wire attached number calculated pull power wires control arm carries 16-ounce lead weight mounted near middle gravity provides motive force hot wire mounted bow 27-inch length 3A inch x 2 inch wood 10-inch-long diameter music wire legs end wrap 18 thousandths T-370 cutting wire around leg bend legs together specified distance wrap around other leg bend legs provides proper tension wire Roger says cutting wire special neither ni-chrome nor stainless steel leader wire standard bow will cut cores up about 26 inches long might think kinda short designers going Schuemann planform type wing has multiple breaks leading edge need two three sections core per wing panel Since foam comes 24-inch-wide pieces its easy economical design two-foot sections can make own longer bow picking up piece wood local lumber yard Roger will soon coming out new aluminum bows 28 40 52 inches long will have feature being foldable legs thus saving storage space Lets now quickly review three ways can cut cores hand gravity electric motor drive Guiding bow hand straightforward method However get good consistent cores youand perhaps helper other endneed practice steady nerves make constant speed cuts Electric motor powered cutters can quite sophisticated require lot rigging gears belts such important take experienced operator correctly regulate both December 1991 185 Funniest Amateur Video Ever R/C FOLLIES PRESENTS CraziestWackiest Funniest Model Airplane Wrecks Youll Ever See! Over 30 Minutes CRASH after CRASH after CRASH Flying off lake smashing ice What happens hand launch forget turn radio plane seaplane turn treeplane Rocket engine mounted Eindecker Four wrecked planes turned Twin flew just lot Bad flying much Dont miss one-of-a-kind exciting funny video offer youll ever see $1 995 plus $3 shipping handling HOLLAND SOUND SERVICES 1 Dunham Dr Dunmore PA 18512 phone 717-346-8742 VISA-MASTERCARD PA Orders add 6% sales tax speed cut heat wire Otherwise foam will burn excessively too hot/slow wire will drag too much too cold/fast As mentioned above Feather Cut machine gravity type cutter Its beauty simplicity set heat cutting proceeds automatically its own pacea feature well suited new users As said Im new game myself Feather Cut machine has couple novel features appear make work better other designs Ive seen feature sliding lead weights legs bow cutting airfoils bottom profile slide weights toward hot wire wire maintains good contact templates going downhill cutting top profile slide weights back wire has less downforce templates going uphill second related feature bow works horizontal position small tailwheel middle wood part bow allows roll across work surface during cutting old method operate bow vertically suspended springs rubber bands course another potential source adjustment error hardest part cutting foam cores making templates instructions Roger recommends second motion S Discover SECRET TO HASSLE-FREE CHARGING Dont miss perfect day because uncharged batteries amazingly simple AUTO-TRICKLE ADAPTER converts ALL overnight chargers FULLY AUTOMATIC TRICKLE CHARGERS Nothing else like Simply plug wall plug overnight chargers push button forget about batteries whole fleet will ready next day week month year Nothing solder connectors buy 100% solid slate device safely reduces chargers output pulse trickle after 16 hours Directly supports 1 3 chargers However powerful 120 Watt capacity easily HANDLES UP TO 30 CHARGERS Nothing else comes close convenience simplicity safety cost effectiveness T I1 E Hurry secret out Get AUTO-TRICKLE ADAPTER TODAY YOUR LOCAL HOBBY DEALER send $3995 5&H Directly Tejera Microsystems Engineering Inc 800 729-9210 PO nox 340608 Tampa Florida 33694 ADVANCED AERO PRODUCTS VS & Os SIMPASS 120 EXI4A5BT SYSTEMSrii 55 50155 toO sFoOUATO4 5555 HWnE5 W5 PATTERN MR5FT AND WINATS 551 ODvANCeD ASRO poosacos OTT 505 25-C 5450 T5 75553 554 954-3945 using Chuck Andersons Airfoil Plot Program draw full size airfoil profiles computer printer Chucks program $25 Address Box 305 Tullahoma TN 37388 Phone 615/4555788 glue printed airfoil plots horizontal grade Formica horizontal thicker vertical grade 3M No 77 spray adhesive cut out jig saw accurately sand polish surface hot wire rides Note need two paper plots per wing section because airfoils template made two parts matching pairs pairs cutting airfoils bottom profile other top type template must used Feather Cut machine because always cuts top surface template early days foam cutting templates same wing rib used two-piece templates have proven better kind core cutting because register work surface unwanted twists wont introduced sketches below show typical pair templates SD 8020 stabilizer section dashed lines indicate actual section chord spaces before after actual chord hot wire lead-in lead-out ffp7j.4t1 #A 3orT-l cur rIPiPLAT 4A r GuP operation pin sharpened pop rivets work fine bottom templates leading edge always cut first ends foam block must first pre-cut cores planform hand using hot wire bow using Formica triangles Continued page 188 186 Model Aviation Model ATAcxl works existing NiCd overnight C/10 chargers Yes works cordless power tools toys individual cell chargers ste THE WIREMASTER TM ndcrfcoler 4 different models wire bending tools offet Also available Alloy Stainless Aluminum Melric hardware Checkyour dealet first un available send business size SASE free catalog JCM COMPANY 114 washington Torr Dopt Waukogan IL 60085 Efficient wide tips thinner airfoil sections combine greater thrust noise suppresion Will out-perform wood & other plastics water sand & gravel runways Made strong 33% glass-filled nylon RPM rating 160K divided diameter inches 1/2A Series 55x4 55x45 6x35 6x3 6x4$ 99 GIF Series 7x4 7x6125 8x4 8x6135 9x4 9x5 9x6 9x8 95x6155 10x6 10x7 10x8.. 175 11x6 11x7 11x75 11x9195 K Series 12x6 12x8 285 13x6 13x8 385 14x6 14x8 495 15x8 15x10 545 665 16x6 16x8 Antique Series 10x5 11x6 12x6 13x6 14x7 16x7 225 245 335 435 545 715 See local hobby dealer Master Airserew propellers accessories Windsor Propeller Co 3219 Monier Circle Rancho Cordova CA 95742 57-6 AL guides Make sure templates resting squarely against perfectly flat work surface foam well weighted down make bottom cut replace bottom templates top ones top cut template pairs must have exactly matching pin holes replace bottom template top same holes foam used otherwise cuts will off Because bottom cut first core settles its bottom bed need compensate templates width wire-cut minimized hot wire cuts core about 10 thousandths undersize vacuum bag cores glass/carbon fiber undersize about right allow skin thickness Once templates made found using Feather Cutter piece cake Im type person Murphy mind because can usually find some way screw up time try something new machine worked beautifully right out box encountered no problems making perfect looking cores say highly unusual Just get everything set hot wire resting templates four rollers adjusted power wires attached hot wire control arm turn power supplyand away goes foam makes very satisfying sizzling noise hot wire slices through about inch per minute need sit watch go catching bow wire comes out trailing edge can use low voltage up 28 volts power supply like Variac adjustable transformer opted get Rogers Thermal Generator because no-fuss operation unit makes perfect companion Feather Cutter Roger says has fool-proof wire temperature control certainly found true simply adjust knob center dial needle Thermal Generator senses resistance whatever length wire using automatically supplies proper amount power heat wire about 2122250 Simplicity itselfl & MODEL BUILDING 7SERVICE RADIO CONTROL PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 wATcI4oGuE ROAD 8 SEAIEN SAM 8 NY 10314 As foam Roger recommends using Dow PRB Plaster Ready Board blue material same blue Dow Square Edge insulating foam PRB has density two pounds per cubic foot rated 25 psi has open aggressive cell structure Roger says want build killer wing consider Dow HI-l 15 High Load board rated 115 psi six lb/cu ft difficult locate though Finally lets get back tapered core paradox wing root 10 inches tip nine inches youd think taper ratio set control arm would 900 no standard procedure Continued page 190 0 0 0 0 j 0 0 0 0 Ousrlerffiaster Sport lips 73 Span 035 similar $21 build FUNK 385-C$25i~ 1/4 scale 108' Span 12 four stroke scale 84 Span 61 four otroke$21 o photo reduced igaS KINNER SPORTITER K 4 scale 117 Span 035 S cylinder $25 ylinder radial scale 76 Span 61 four stroke $1 o reduced DAVIS 01K scale 905 Span 035 5 cylinder radialp~pPs r/6 scale 603 Span 45 four stroke$1 500 photo reduced STITS PLAYHOY$25I /a scale 88 opus 035 larger 188 Model Aviation Leader Small Airfoil Technology MASIE 11 AHISCREW TAYLOFICRAFT q in 12 $250 61 DGAO Piano O0riOgl PHOTO DOCUMENTATION PACKS uvu"- nrr Scule Piano Alt PLANS NOLLE5 OOIPPFS P5 C cdli Insirocion Sonidet e.money Order COOs clip power wires hot wire inch either end foam block root end power wire actually travels little 10 inches tip end wire travels little less nine inches determine actual lengths travel easiest way place pre shaped foam block piece paper project end inch straight edge pencil measure projected ends Feather Cut machine sells $13950 plus $850 S&H Thermal Generator $9450 plus $450 S&H Both may ordered Tekoa Center Design 3219 Canyon Lake Drive Hollywood CA 90068 Phone/Fax 213/469-5584 New Low-Cost Vacuum Pumps piece April column about making vacuum pump refrigerator compressor generated lot interest knowing what now wouldnt have bothered making Both Composite Structures Technology Aerospace Composite Products WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries fh chargers need pacd6aget wet Cell & Cycler-Chargec *23996 Fits 48V RX 96V Tx p00ll5Plus $750 S&HaGeGelled Cell Others available write calle erieS Regular Model. 96 field kit sinaiPlus $500 P&H electriC boat batteriesSpecify 612 24V 8qnL Canton II spoil winch large boat andPlan $600 P&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssE Ion OlloineailooPO Box 221 605ga-5g24126316V Bill Eff get * says Only Piano Pattetott Sets give anvorted designs want have selected best classic designs time foe pvc choose tcer patterns tot part ate impottast eaclusice feature Curtiss HAWK PlC 9400 wingspan68 length 2268 sq snieg aeon Fnr 13 23 ClO engines 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FOrt3102301 0 pogroac weOe Oppor rOiOsliessnCIOO wirgepan 4 COnnoni nic g Overall Leogro itied Scale Liar eanom OrtOii 2072 sy wing grea a Wirg Panels OuatOt Scala 1/3 Scale MONOCOUPE NA Wingspan 92 Onerall Length - 2100 sq Wing Area Fnr 29 en 38 CID hegines RC3S-4 Bill Ellinget Foonding Mewbnt AMA NFF5 Hall nt Fewer Pricee tor complete plans sub asnemclv S detailed parts hOts PLEASE ADD g3gO shipping wailing tobsl sew 1991 Plan Seer OrvOhere Irafriodasle ovar firel orderli WE TECHNICAL SERVICES RO Box 420144-S Atlanta GA 30342 190 Model Aviation No NITRo Runs 5% Gets about 1 minute ounce fuel OPS MAxI 30 18 Statically dynamically balanced 5 intake ports shaft induction roller ball bearings long stroke pump carb readily available parts l8x8TopfightM.8l85rPm 20 x 6 Zinger8036 rpm 24 x 8 Zinger 30 rpm stock VS parts 54sPeoPleof now selling low cost continuous-run littlebreather strip T-fitting just $5 RC Soaring/Blakesleepumps work great onlymore set obviously way go Continued page 188drawback its too serious thatCST has convenient toll free order pull maximum six inches ofnumber l-800-338-lCST Aerospaces mercury Six inches shouldpump called E-Z Vac goes E-Z use white foam anyway whenLam ACPs excellent epoxy laminating using blue foam cores much vacuumresin sells $6500 itself probably adequate work$7500 both plus $400 S&H set CST calls pump Mighty Mini-similar CSTs ACP set also Vac sells $6995 itself andincludes very neat hose fitting $7495 both plus $600 S&H set asattaches flat surface bag plus shown photo includes threetwo Quick-Seal clips below yards nylon bagging tube sealant ntinued page 192 opper iant Semi-Scale Sportster reminiscent 1930s Heath midwing homebuilt Spans 85-in 90 power 2 plan sheets No 704 Arrow$500 CL Stunt Wing inspired 1960s-vintage Bill Netzeband designs new PAW 049 diesel engine Spans 298-in No 705 Zenith$200 FF Hand Launch Glider serious competition Wing DT spans 18-in 35-38-gr $375 No 193Selleito CL Stunt model lMcDonaIdl winner 1976 1999 1982 FAI World Champs$ No 262crashmaster CL crash-proof trainer two sizes15/30 35/40 power No 3101930 Ftet Biplane AC Sport Scale 35/40 4-channel Wingspan 56-in 4-scale Two plan sheets$625 Mo 314Drake II AC Ken Willards flying boat 3channel 15 power Fly land wofi removable gearS375 No 326Taylor cub AC Don Sinus Schoolyard-Scale tar 049 power 2-3 channel Spans 50-inS359 No 332Zephyr AC small 2-channel Glider hand-launch tow thermal slope soanog$290 No 368LaSer 200 AC Sport Scale replica championOhip Aerobatic flier 40 power 4-5 chanoel Two plan sheets$1075 No 447twA MIsS America AC Old Timer Texaco model 049 910w 2 chaneels$650 No 4604-40 AC shoolder-wiog Sport flier 4-cycle 40 power 4 channels$650 No 539Simltar slow-MotIon 15 AC Tailless flying wing 15 engines spans 60 ones 3-cb AC$359 No 578Schweizer 1-260 AC Quarter-scale Sailplane spans 125 Two plan sheets$1475 6No 581Gee Bee Model Y AC Golden Age Racer spano 72 scale 60 power Three plan sheets$ 1175 0No 588Marish AC Slope-Soaring Sailplane spans 41 uses 2 AC channels$ 425 No 598coronae 150 AC-Assist Old-Timer enlarged 150% opens 7210 uses 40-size 4-strokel 30-size 2-stroke$ 950 cjNo 603Sparrow Hawk P-30 FF Competition robber-power plase won 97 Nuts Spans 30 in$ 225 No 626Sweepee AC Sport/Paltem canards forward-swept wing spons 64 in. uses 40 power 2 plan sheet SI$ 1300 No 626Prime cue AC Sport/Aembatic plane spans 99 in. sans Quadra 35140-size power Two plan sheetsS 1390 --No 630OrigInal Fly Baby AC Old-Timer spans 72 in. uses 19125 2-cycle 49 4-cycle power 12 plan sheetsl$ 1150 0CNo 644Bellanca columbIa AC Schoolyard Scale 2 AC channels hA engioe Wingspan 46 ur$ 575 No 646Winter Hawk FF Rubber-power Coupe dI-liver compotfilan plane spano 47 inS 375 CO anNo 65047/60 RC Special AC Aerobatic sport plane 49 power spans 61 3 plan sheets$ 1975 05 0 No 602Der Pledermauw AC Low-wing sport plane 20/25 power spons 55 in$ 675 o -No 6541amecat AC Trainer/sportoter styled like F14 spans 66 49/61 power Four plan sheets$ 1525 .No 667Super Squire AC Troiner 35/40 2-stroke 53 4-stroke power spans 56/a in$ 759 0 0No 659Boom Box FF Wakefield Robber compettion plane spans 54 in$ 490 0No 601Embry-Omatic FF Embryo Endurasce mbber-power plane spans 20 inS 290 No 663Pee Patch AC Sportster spans 69 uses 49150 4-stroke power 2 plan sheets$ 990 E 0No 664Stuka Stunt CL Stutter semiscale spans 37/a inS 590 No 605conacierittous Oblector FF Moloihill Rubber competition pfane spots 59 flat$ 575 503 66 s AC Sportoter spans 49 uses hot 29132 power 12 plan sheets 75 No 607AT-6 CL Semiocale profile StonIer 35/40 power spans 47 inS 575 6 ENo 609Roto Raven AC Sailplane unique twist-wing control Spons 76-ie Requires elevon nasing$ 650 z CUNo 671cessna cardInal FF Reminder Scale sport flier power spans 39-isS 575 INo 672Krackerjac AC updated version pioneer sport plane spans 74-in two plan sheetsS 1375 No 674 Krumpier AC 975-powered Electric semi-scale bi-winger spoan $ 575 oS 225 No 675BOF-1 FF twin-tailed sport filer Coo 02 Pee Wee engine spans 25-in No 676HIlIner AC twin-electric high-wing Sport ship denigned H6ine lmp-39 motor Has tricycle gear spans 40in.$ 406 -C-No 677ThunderbIrd CL Stutter 29-35 power Two plan sheets drawn original 1982 Veca Spans 54 in$ 975 eNo 676Sean Box FF Woof Coast Bostonian Outdoor design Spono 10//a in$ 159 -o 05oNo 679BIg Blngot Large AC Sportster sporo 95 120-24 power Two plan sheets$ 1790 SNo 6011969 Beds BD-4 FF Rubber Scale modni spans 18 in$ 325 No 682B T VIntage Trainer AC Reminder-Scala Sportster 20-size engises Spans 47% Two plan sheets$ 1156 No 684Staggerwlng Beech 3-Channel RC Schoolyard-Scale to-wieg Sportsler 049 power Spans 32-in$ 375 50lbNo 685Akro-Bat CL Stunner high-performance 049 engines Spons 32-in$ 230 E bNo 686Fotler AC Pattens-typa sport plane 2- 4-cycle power Spans 65-in$ 725 0 688 alth GlIder PP robberband-launched toam/baise Canard Catapufi/Steath Obder combo Spaes 9-in 60 No 689Thomas Morse Scout 54C AC 4-scale biplane 90 power Spaos 63-in 3 plaa oheets$ 1975 IDNo 690p-62B TwIn Muateng CL Profile Sportoter twin MVVS 25 diesels Spans 48-in 2 plari sheets$ 1050 C 0No 6911927 NL2 FF Scale model Polish bomehoifi tar 8-8 watt motor mkber 902 Spans 29-re$ 225 0No 6923 Meter Scooter AC High Performonce Sailplane Spons 118-in 2 plan sheets$ 1159 693csrdlnal classic CL Sport Stunter 35 power Spuos 50-in$ 575 CNo 694AIrmaster AC Canard Sportoter lnr two 40 push-pull engines ar 60 pusher tractor Spans 66-in 2 plan sheets 5 1475 -0No 695Spirit St Louis CL Scale replica far 1525 power Spans 46-in$ 575 0No 696Pole cat FF P-30 Class AMA Senior record holder Spans 31-in $ 225 No 697Tlgerkltten 8 AC High-performance Sport Aembatic design 05/15 Coba9 electric power Spans 54-in 0one plan sheet plus two-page inotrocton booklet$ 1990 -~No 696NovaClone CL One-denigo malti-enent Sport filer 35 power Spans 42-rn$ 490 No 699 Top cat 90L-1 FF Robber PAl Indoor Stick Gliderhot der AMA Cat PlO & Stich Naimnal Records Spans 13125-in oTwo plan sheets$ 390 o 700 Randys DIme AC economical versatile Sport Trainer ideal 10 power Weigirs 33-az spans 50-in$ 575 0 115 No 701 Jumpln Gso AC high-performance Sportster designed fun fly events Weighs 3-9 spans 48-la 40-45 power $ 725 No 702 Nelnkel NE 18 PP Scale model 1924 German monoplane Hiline Mlei-6 geared elecfdc motor Spans 28-in 290 005~ v32][b-1-10-1-10]] C5 rcle numbers plans wish order best handling please include re- quests payment some other service plans order i 3262310314326332386447 460539578581588598603626 00 ua O628630644646650652654657 cs coo659661663664665666667669 ZZO671672674675676677678679 E681682684685686688689690 691692693694695696697698 0 qPlan 699700701702703704705 • price includes first class postage US delivery Air Mail over 300 miles Far orders nan-US address e add $258 far AIr Mall asia sand handlln Ian check money order payable US funds drawn US bank Model Aviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery 0 Please print carefullyEnclosed $ NAME_________________________ AMA No _________ _ ET CITY LTATh ZIP________ Plans orders must received AMA no later December 1 Model Aviation Christmas delivery again set best buy ACPs address Box 16621 Irvine CA 92714 Phone 714/250-1107 CSTs Gail Gewain sent Mighty Mini Vac set try must say after using bag wood veneer skins Thermal Eagle wings Im completely sold Just plug let humm away Being belt suspenders type took vacuum gauge off other pump make sure Mini-Vac pulling okay finger over hose indeed pulled six inches mercury connected bag must have pinhole leak because reading stayed bit under five inches good enough though As long bagging few other items worth mentioning CST has 35 ounce unidirectional carbon fiber fabric comes 10 inches wide sells $1200 per lineal yard beautifully thin 5 thousandths thick material perfect wings layer two lightweight glass top George Span Aerospace just introduced reusable Quick-Seal clips used seal ends vacuum bag tubes consist 743 inch solid plastic rod fits snugly inside fairly rigid Ushaped plastic channel 20 inches long just place bag over channel push rod channel thus forming easy doand undoseal $350 Another new item George pair pumps E-Z Lam preset dispense ounce per stroke part resin e per stroke part B hardener will blessing baggers dont have precision scale weighing epoxy New League Silent Flight Address LSF President Bob Steele communicated LSF now has new permanent mailing address 10173 St Joe Road Ft Wayne IN 46835 old Winfield IL PO box wrn continue forward mail year until August 1992 Bob says mail turnaround time will back 7 14 days used Members may phone Bob 219/485-1145 Mankato Model Soaring Society newly formed club North Mankato Minnesota Bob Botha driving force says has permission use nice 40-acre sod farm flying field Interested sailplaners electrics welcome too area should call Bob 507/345-1832 evenings weekends Southwest Winter Soaring Contest will again sponsored Central Arizona Soaring League held Phoenix February 1 2 will two one-day contests flying modified Triathalon precision duration tasks Sounds like good place schedule winter break info write Chuck Wehofer PO Box 2472 Chandler AZ 852gEli
Edition: Model Aviation - 1991/12
Page Numbers: 48, 49, 183, 184, 185, 186, 188, 190, 192
THE MODI 900 Greco Technologies Youre probably asking Whats Modi 900 what Greco Technologies honest can pass about either time material gleaned press release phone conversation gliders principal designer Greg Chun Greg works Greco Engineering division Greco Technologies told company new model manufacturing wants enter business adjunct engineering consulting work rendering shows attractive Modi Its specifications modem up-to-date thats about know Greg said have gone through three design versions examples final design about late August placed hands experienced fliers evaluation Entering model glider market especially high end isnt simple proposition Before offering glider sale design must thoroughly tested Construction details must proven workmanship shown high quality Most important gliders performance should compare well competition time read Greg says Modi will flying Southern California contest circuit should reporting real life results soon Until would seem best treat following press release news item heres Readers Digest version Greco press release Greco Technologies excited announce arrival Modi 900 open-class competition sailplane has 50-inch fiberglass Kevlar fuselage RG15 triple-taper-cut wings made out extruded blue foam glass lots uniweb carbon fiber cloth development unique sailplane undertaken Greco engineering technical consulting firm Pasadena its staff aerospace engineers sailplane enthusiasts allowed insight both technical aspects aerodynamics wants needs hobbyist Modi 900 now off drawing board production available public Modi 900 sets itself apart competition its strength durability layer plane designed built strength versus weight considerations mind wings start PRB blue foam base overlaid full layer top bottom 45 oz carbon fiber cloth plus second layer cloth top 10 inches bottom 15 inches root wing strength encased 14 oz fiberglass 48 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Dan Troxell Laguna Hills CA bought fuselage Trom Holana Kern Germany made own wings half-scale Grobe 103 Aero two-place glider will featured January Artists rendering beautiful Modi 900 Greco Technologies ship will come largely pre-built ARF Designed thermal multitask competition has 1 1Oin wingspan 903 sqln weight 70 80 ounces Chris Aho left holds dad craigs protoiype RnInum y uuuuIu De signs Anthem updated improved Lovesong Right winners 1991 Southwest contest Phoenix L-R front Ian Dou glas John Mangino beck Steve George Ed Holder both Leg ends Jim McCarthy Comet 89T 1992 Southwest Feb ruary will bigger belier yet cloth laminating epoxy root ribs sub ribs 14-in plywood laminated strips carbon fiber ensure endurance wing joiner rod -in carbon fiber rod encased brass tube giving tensile strength steel fraction weight Aluminum shaft hinges flaps ailerons included ensure rigidity under high pressures fuselage constructed Kevlar fiberglass Under testing Modi 900s wings withstood pressures approximately 375 foot pounds before delamination Other vital statistics include Span 110 wing 50-in fuse wing area 9026 sq weight 70-79 oz wing loading 110 oz/sq ft aspect ratio 1311 airfoils RG15 wing 5D8020 stabilizer kit comes two forms pre bagged Almost-Ready-to-Fly pre bagged kit comes wings rough stage just out bag kit takes 30 80 hours complete retails $595 ARF kit comes hardware installed finished wings takes 10 15 hours complete radio installation retails $895 information catalog contact Greco Technologies PO Box Anthem Dodgson Designs new name pedigree going back 1972 Bob Dodgson began manufacturing aileron glider kits Bob introduced 134-inch-span Windsong 1982 few years ago strengthened structure cope modern exuberant flying styles renamed Lovesong Songs have probably popular thermal competition ships during period Continued page 183 December 1991 49 10 South Pasadena CA 91031 call 1800-34-GRECO Ext 23 Feather Cut hot wire foam Cutter gives builders easy-to-do Pro quality results small low-cost vacuum pumps answer bag gers prayers Mighty Mini-Vac R Composite Structures Technology Nylon bag material breather felt sealant part system whole thing available CST $7495 Mid-Columbia/Blakeslee Continued page 179 heard planes touch Yeah glad Rich such smooth flier didnt flinch RC Soaring/Blakeslee Continued page 49 around country Bob says hes sold several thousand kits Now Bob has updated Song design based experience latest kit Saber Basically Anthem Song 5D7037 airfoil obechi sheeting flying surfaces aileron flap servos wings 48-inch bullet proof wing spar %-in joiner rod Bob says newsletter Second Wind prefer larger glider scale-like profile easy see great distances want added L/D long span high aspect ratio wing nothing available can match Anthem limited time will continue offer Lovesong have computer radio prefer slower flying yet high-performance tripped Eppler 214 airfoil sure get Lovesong theyre still production suggest wait gone AVIATION CHfISTMAS GIFTS SALE r VALUABLE COUPON ngall paper CORSAIR Procut/colored W/MOTOR $4 2 for- $6 ___ ~Precolored GIFT glder-sI ers & envelopes j2 $3 24 $5j CATALOG 1 3000 planes $18______ w/lst order- over PAPEII AIRPLANE club $1500$251 PAPER AIRPLANES II 433 NIHOA STREET KAHULUI HI 96732 USA ISeI uVoo will gone Prices Anthem Base kit $279 kit pre-built spars $345 kit pre-sheeted wings stabs rudder limited availabilitycheck before ordering $430 add $12 UPS shipping kits Write Dodgson Designs 21230 Damson Road Bothell WA 98021 Phone 206/776-8067 Monday-Friday 10 am 5 pm Pacific time Bobs Second Wind newsletter good way keep touch whats happening Dodgson Designs About 700 customers subscribe Two issues per year spring fall published cost modest $200 $300 Canadians An Anthem builder Craig Aho Mountlake Terrace near Seattle Craig called sing Anthems praises kind enough send photo letter picture Anthem promised son Chris holding Sorry poor quality photo Anthem fantastic flier using 5D7037 airfoil new spar system roll rate impressive speed range wide good top end aircraft still has best light lift qualitiesas did its predecessor Lovesong Ive hung up Falcon 880 now Ive got aircraft built prototype 60 hours dee 6rckoo/ Learn fly ottr planes private field Five Dr 6 day course $350 Open year round Send SASE Complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 scratch built wood parts builds fast large enough see easily has classic Song look Bob now offering new option Anthem Saber completely pre-sheeted flying surfaces additional $150 ATRCS Version 30 u p-grade brought guys Control Systems Laboratories Gene Englegau Tom Mroz Youll recall introduced ATRCS conversion Airtronics Module transmitter summer 1988 Shortly thereafter Airtronics contracted CSL provide similar hardware software very popular Vision transmitter CSLs latest announcement Now new improved software revision plus improved components can installed December 1991 183 ~IEKINO STEPPING INTO THE FUTURE OF R/C THE NEWEST IN ELECTRIC FUGHT PRODUCTS Units Feature Surface Mount Technology Light Weight Ultra-Slim Advanced Linear Design Low Current Draw lOMA High Power MOSFET Design 118 Cells 24 Volts 40 size motors Electronic Speed Controller ESC Electronic throw ad pat pend ESC 100120 amp coot 300 amp surge$5995 Electronic Switch ESW Fully adi reversihle point indicator ESW 23030 amp coot 75 amp surge$2995 ESW 26060 amp coot 150 amp surge$3995 ESW212O120 amp coot 300 amp surgeS5995 Please specify receiver coon ordering prod ucts Guaranteen 6 months trom purchase dote Call write details TREK IND regon Ave ord NY 11763 516 758-8170 LIGHTING SYSTEMS THE ORIGINALS. Still Best *RED 01Programmable Flashing Navigation Lights 9V$2495 #RED 02Strobe Light Ad] Rate 9V$1995 *RED 03Landing Lights 48V$3995 *RED 04Mars Rotating Beacon Ad] Rate 9 V$1995 #RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 #RED 23Real Strobe Light true zenon strobe 3V$2995 S SEE YOUR DEALER 0 SEND STAMPED ENVELOPE FOR RAM INFO unavaIlable locally send check money order full credit card info coat Item plus $400 $5 00 foreign immediate shipment Include full addresa U PS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 Near AiRES MOLLS METALS 500KS PRECOS5ON INSTRUMENTS ~COMPLETE COTOLOC $200 TDDLS CD C4M1U RoO OTs items sPr~iB2555ssss * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No 202 Air Cleaner Fine *275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc po Box3786 Cones Mchganaole Add $250 sh pp op M ch gao ea dents add 4% ua eu taxI 11376 Ridgeway RoadKensington OH 44427216 223-1950 DrtObatiC span $17995 span -$18995 Sportobatirs M 84span92span-S1to 84 Sportobatics 10 lbs ideal 90 2C 120 4C engines 92 versions 13 lbs perfect ST2000-3000 equivalent engines Both versions build quickly lite-ply & balsa fuselage & tail & foam wing Sportobatics fill need hotdog show-off sport planes Knife-edge takeoffs flat spins snap rolls rtobatics will anything can yet land like strainer Super Canopy Ohio CS-equipped 5P7 Vision 85P transmitters up-grade consists following features ATRCS 5P7 Module Transmitters Replaces Micro-processor improved versionallowing larger sophisticated programs Replaces setup memory chips larger capacity setdoubles setup memory 8 setups Up-grades ATRCS transmitters include new featuresAdds PCM fail safeAdds aircraft naming setup Vision 85P Transmitters above plus additional receiver capabilityFutaba FM-PPM 4-8 channels Both Vision 75P ATRCS transmitters will work RCD FM-PPM 4-8 channel receivers JR FM-PPM 4-8 channel receivers past would have write down setup information since $25995 Giant 99 x 16 Vinyl Clad Nylon Yellow Blue White Two-Color Combinations 8 rugged tube frame 10 easy-out stesi tent stakes nylon guy cords Folds neat hesvy-duty cardboard box goes up quickly complete instructions Optional name city state printed ends $6000 replacing setup memory Now due improvements methods no longer have will automatically save setup information generate paper hard copy restore setups new memory chips hard copy will sent back along transmitter records price version 30 up-grade just $9500 plus $400 UPS ground $1000 UPS blue shipping CA residents need add local sales tax Payment check money order Visa Mastercard Send ATRCS transmitter less antenna battery Control Systems Labs 238 So Hillview Dr Milpitas CA 95035 Phone 408/946-4142 Feather Cut Hot Wire Foam Wing Machine new foam wing cutter produced Tekoa Center Design company better known us LA area father/son team Roger Blayne Chastain As read last month Terry Edmonds Nationals report Blayne Senior age group flier placed first both Standard Unlimited class fact Unlimited class beat Open age winner Brian Agnew point Roger called back asked Id like try machine said betI want cut some cores anyway Roger thought Id suitable test subject because have never cut cores before course Ive seen done Julian Tamezs Channel Productions foam cutting video person other occasions Ive always built kits never cut own cores machine arrived very sturdy 55inch-long mailing tube small parts neatly individually packaged long poly bag whole thing went together about hour Its mainly just matter following easy instructions looking diagrams threading screws nuts together two main parts machine made blue anodized extruded aluminum right off bat know Roger has put lot effort project larger extrusion called body 51 inches long designed mounted edge work bench held place tape easy removal taped edge 24-inch-wide hollow core door sets table As can see photo mounted body two horizontal two vertical rollers four rollers can slide back forth tracks fixed place wing nuts rollers adjust machine 184 Model Aviation OHIO SUPERSTAR PRODUCTS INC ADAPTOR THROW-A-WAY YOUR COLiETS CHUCK & WRENCH USE OUR 0 TO jCHUCK DREMEL POWER TOOLS RUNS 100% TRUE & ONCENTRIC AT FULL RPM NO 501 ADAPTOR ESS cHUCK $1895 IDREMEL 850395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POUSHED STEEL USED FOR CUTTING PLASTIC WOOD SOFT METALS LEXAN PLEXIGLASS & ETC AVAILABLE IN 006 008 010 012 014 016 018020023 025 V028 032ThICKNESS NO 502ARBOR$800 OUR IDE DIAMETER @ $675 EA NO 503 014 X 114 SAW $800 SAWS ONLY WORK WITH OUR ARBOR MICRO SELFsTARTING TORCH No need Ifint matches Just press Piezo Self-Starting button -for micro size adjustable flame barns 237h up 3 hours Operates standard cigarette -hghter butane refiflabfe Tank fits comfortably palm hand made high-impact rubber allows safe non slip comfortable grip Sapplied can butane MT770 Blow Torctt $3500 ne butane MT771 Butane 5 oz0600 EASTERN TOOL& SUPPLY CO I49GRANDST -NYC NY 10013 WRITE FOR CATALOG$300 ORDERS 212-925-1006 WHEN ORDERING- PPD ADO $300 OFFICE 212-226-3749 CODADO$500FAX212-925-1010 cut cores up 50 inches long almost width taper rollers guide two very flexible 22 gauge power wires connect hot cutting wire alligator clips other ends wires connect low voltage power source power wires serve heat cutting wire also pull hot wire through foam block smaller extrusion called control arm 48 inches long pivoted left end body has two purposes compensate difference two power wires travel cutting tapered cores provide pull power wires Tapered cores tricky because cores root 10 inches tip nine inches power wire root travels pull length inch exactlyexplained below the tip control arm has graduated scale its face reads zero 100 use set cuts taper ratio ie tip/root pull lengths root end power wire always attached 100 tip wire attached number calculated pull power wires control arm carries 16-ounce lead weight mounted near middle gravity provides motive force hot wire mounted bow 27-inch length 3A inch x 2 inch wood 10-inch-long diameter music wire legs end wrap 18 thousandths T-370 cutting wire around leg bend legs together specified distance wrap around other leg bend legs provides proper tension wire Roger says cutting wire special neither ni-chrome nor stainless steel leader wire standard bow will cut cores up about 26 inches long might think kinda short designers going Schuemann planform type wing has multiple breaks leading edge need two three sections core per wing panel Since foam comes 24-inch-wide pieces its easy economical design two-foot sections can make own longer bow picking up piece wood local lumber yard Roger will soon coming out new aluminum bows 28 40 52 inches long will have feature being foldable legs thus saving storage space Lets now quickly review three ways can cut cores hand gravity electric motor drive Guiding bow hand straightforward method However get good consistent cores youand perhaps helper other endneed practice steady nerves make constant speed cuts Electric motor powered cutters can quite sophisticated require lot rigging gears belts such important take experienced operator correctly regulate both December 1991 185 Funniest Amateur Video Ever R/C FOLLIES PRESENTS CraziestWackiest Funniest Model Airplane Wrecks Youll Ever See! Over 30 Minutes CRASH after CRASH after CRASH Flying off lake smashing ice What happens hand launch forget turn radio plane seaplane turn treeplane Rocket engine mounted Eindecker Four wrecked planes turned Twin flew just lot Bad flying much Dont miss one-of-a-kind exciting funny video offer youll ever see $1 995 plus $3 shipping handling HOLLAND SOUND SERVICES 1 Dunham Dr Dunmore PA 18512 phone 717-346-8742 VISA-MASTERCARD PA Orders add 6% sales tax speed cut heat wire Otherwise foam will burn excessively too hot/slow wire will drag too much too cold/fast As mentioned above Feather Cut machine gravity type cutter Its beauty simplicity set heat cutting proceeds automatically its own pacea feature well suited new users As said Im new game myself Feather Cut machine has couple novel features appear make work better other designs Ive seen feature sliding lead weights legs bow cutting airfoils bottom profile slide weights toward hot wire wire maintains good contact templates going downhill cutting top profile slide weights back wire has less downforce templates going uphill second related feature bow works horizontal position small tailwheel middle wood part bow allows roll across work surface during cutting old method operate bow vertically suspended springs rubber bands course another potential source adjustment error hardest part cutting foam cores making templates instructions Roger recommends second motion S Discover SECRET TO HASSLE-FREE CHARGING Dont miss perfect day because uncharged batteries amazingly simple AUTO-TRICKLE ADAPTER converts ALL overnight chargers FULLY AUTOMATIC TRICKLE CHARGERS Nothing else like Simply plug wall plug overnight chargers push button forget about batteries whole fleet will ready next day week month year Nothing solder connectors buy 100% solid slate device safely reduces chargers output pulse trickle after 16 hours Directly supports 1 3 chargers However powerful 120 Watt capacity easily HANDLES UP TO 30 CHARGERS Nothing else comes close convenience simplicity safety cost effectiveness T I1 E Hurry secret out Get AUTO-TRICKLE ADAPTER TODAY YOUR LOCAL HOBBY DEALER send $3995 5&H Directly Tejera Microsystems Engineering Inc 800 729-9210 PO nox 340608 Tampa Florida 33694 ADVANCED AERO PRODUCTS VS & Os SIMPASS 120 EXI4A5BT SYSTEMSrii 55 50155 toO sFoOUATO4 5555 HWnE5 W5 PATTERN MR5FT AND WINATS 551 ODvANCeD ASRO poosacos OTT 505 25-C 5450 T5 75553 554 954-3945 using Chuck Andersons Airfoil Plot Program draw full size airfoil profiles computer printer Chucks program $25 Address Box 305 Tullahoma TN 37388 Phone 615/4555788 glue printed airfoil plots horizontal grade Formica horizontal thicker vertical grade 3M No 77 spray adhesive cut out jig saw accurately sand polish surface hot wire rides Note need two paper plots per wing section because airfoils template made two parts matching pairs pairs cutting airfoils bottom profile other top type template must used Feather Cut machine because always cuts top surface template early days foam cutting templates same wing rib used two-piece templates have proven better kind core cutting because register work surface unwanted twists wont introduced sketches below show typical pair templates SD 8020 stabilizer section dashed lines indicate actual section chord spaces before after actual chord hot wire lead-in lead-out ffp7j.4t1 #A 3orT-l cur rIPiPLAT 4A r GuP operation pin sharpened pop rivets work fine bottom templates leading edge always cut first ends foam block must first pre-cut cores planform hand using hot wire bow using Formica triangles Continued page 188 186 Model Aviation Model ATAcxl works existing NiCd overnight C/10 chargers Yes works cordless power tools toys individual cell chargers ste THE WIREMASTER TM ndcrfcoler 4 different models wire bending tools offet Also available Alloy Stainless Aluminum Melric hardware Checkyour dealet first un available send business size SASE free catalog JCM COMPANY 114 washington Torr Dopt Waukogan IL 60085 Efficient wide tips thinner airfoil sections combine greater thrust noise suppresion Will out-perform wood & other plastics water sand & gravel runways Made strong 33% glass-filled nylon RPM rating 160K divided diameter inches 1/2A Series 55x4 55x45 6x35 6x3 6x4$ 99 GIF Series 7x4 7x6125 8x4 8x6135 9x4 9x5 9x6 9x8 95x6155 10x6 10x7 10x8.. 175 11x6 11x7 11x75 11x9195 K Series 12x6 12x8 285 13x6 13x8 385 14x6 14x8 495 15x8 15x10 545 665 16x6 16x8 Antique Series 10x5 11x6 12x6 13x6 14x7 16x7 225 245 335 435 545 715 See local hobby dealer Master Airserew propellers accessories Windsor Propeller Co 3219 Monier Circle Rancho Cordova CA 95742 57-6 AL guides Make sure templates resting squarely against perfectly flat work surface foam well weighted down make bottom cut replace bottom templates top ones top cut template pairs must have exactly matching pin holes replace bottom template top same holes foam used otherwise cuts will off Because bottom cut first core settles its bottom bed need compensate templates width wire-cut minimized hot wire cuts core about 10 thousandths undersize vacuum bag cores glass/carbon fiber undersize about right allow skin thickness Once templates made found using Feather Cutter piece cake Im type person Murphy mind because can usually find some way screw up time try something new machine worked beautifully right out box encountered no problems making perfect looking cores say highly unusual Just get everything set hot wire resting templates four rollers adjusted power wires attached hot wire control arm turn power supplyand away goes foam makes very satisfying sizzling noise hot wire slices through about inch per minute need sit watch go catching bow wire comes out trailing edge can use low voltage up 28 volts power supply like Variac adjustable transformer opted get Rogers Thermal Generator because no-fuss operation unit makes perfect companion Feather Cutter Roger says has fool-proof wire temperature control certainly found true simply adjust knob center dial needle Thermal Generator senses resistance whatever length wire using automatically supplies proper amount power heat wire about 2122250 Simplicity itselfl & MODEL BUILDING 7SERVICE RADIO CONTROL PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 wATcI4oGuE ROAD 8 SEAIEN SAM 8 NY 10314 As foam Roger recommends using Dow PRB Plaster Ready Board blue material same blue Dow Square Edge insulating foam PRB has density two pounds per cubic foot rated 25 psi has open aggressive cell structure Roger says want build killer wing consider Dow HI-l 15 High Load board rated 115 psi six lb/cu ft difficult locate though Finally lets get back tapered core paradox wing root 10 inches tip nine inches youd think taper ratio set control arm would 900 no standard procedure Continued page 190 0 0 0 0 j 0 0 0 0 Ousrlerffiaster Sport lips 73 Span 035 similar $21 build FUNK 385-C$25i~ 1/4 scale 108' Span 12 four stroke scale 84 Span 61 four otroke$21 o photo reduced igaS KINNER SPORTITER K 4 scale 117 Span 035 S cylinder $25 ylinder radial scale 76 Span 61 four stroke $1 o reduced DAVIS 01K scale 905 Span 035 5 cylinder radialp~pPs r/6 scale 603 Span 45 four stroke$1 500 photo reduced STITS PLAYHOY$25I /a scale 88 opus 035 larger 188 Model Aviation Leader Small Airfoil Technology MASIE 11 AHISCREW TAYLOFICRAFT q in 12 $250 61 DGAO Piano O0riOgl PHOTO DOCUMENTATION PACKS uvu"- nrr Scule Piano Alt PLANS NOLLE5 OOIPPFS P5 C cdli Insirocion Sonidet e.money Order COOs clip power wires hot wire inch either end foam block root end power wire actually travels little 10 inches tip end wire travels little less nine inches determine actual lengths travel easiest way place pre shaped foam block piece paper project end inch straight edge pencil measure projected ends Feather Cut machine sells $13950 plus $850 S&H Thermal Generator $9450 plus $450 S&H Both may ordered Tekoa Center Design 3219 Canyon Lake Drive Hollywood CA 90068 Phone/Fax 213/469-5584 New Low-Cost Vacuum Pumps piece April column about making vacuum pump refrigerator compressor generated lot interest knowing what now wouldnt have bothered making Both Composite Structures Technology Aerospace Composite Products WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries fh chargers need pacd6aget wet Cell & Cycler-Chargec *23996 Fits 48V RX 96V Tx p00ll5Plus $750 S&HaGeGelled Cell Others available write calle erieS Regular Model. 96 field kit sinaiPlus $500 P&H electriC boat batteriesSpecify 612 24V 8qnL Canton II spoil winch large boat andPlan $600 P&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssE Ion OlloineailooPO Box 221 605ga-5g24126316V Bill Eff get * says Only Piano Pattetott Sets give anvorted designs want have selected best classic designs time foe pvc choose tcer patterns tot part ate impottast eaclusice feature Curtiss HAWK PlC 9400 wingspan68 length 2268 sq snieg aeon Fnr 13 23 ClO engines annel RIG RCOS 14 $2498 7 ii Curtlss FALCON 0-I B/A3 114 wingspan ength RCO$13 -- g2ggh 3160 sq wing area P023 tn 3h CID engines annel RIG One-Tb dSae NVTI~PpeT Pee PA22 38 ~jn7413SaePpe Cub 3 Quarter Scale- WWI0$7f SE-SA wing area 78 22 engines gg/e wing spane222g 5g PCO$-7 h0 SPAD C-XIII 7g%wingspan212P5gin wing atna 13 31 nogines Capable lynt captotes imagination RCOS-h 5 FOKKER DR-i TRIPLANE . 72 wing spen sg 0K wing atno 78 1 h$ engines PCOSh 8 5OPWiTH CAMEL P1 Sd wing span 1 5g wing area 11 lbs wlo SIC woodS balsa consttuction over hh sg ft drawings PCOS-t 1 5 Fokker DVII P$ wiognoan 2220 Sif iv w $ $0 2h cid engine ch SCOSS h 1/4383810 Albatros DVa d War-f FIghts -gairrsynoontecsamekn Pwntaett y cc$ioder roth P Shrmwe ergee ii tee silihOPli OnritOOO$utaeotmm w OteitO Onni tOns S Orta 500* ncnelr vets ano 5i gotapeenedsyeaaarctsefl iCtfttp ovim 000017 tetlOtnOt den ic perlano arigealca Iv ne pci en oem tepernien nat reocaaO6eieiCOatgeaae erpre padr end Sitar 00000$ isodog gee FOrt3102301 0 pogroac weOe Oppor rOiOsliessnCIOO wirgepan 4 COnnoni nic g Overall Leogro itied Scale Liar eanom OrtOii 2072 sy wing grea a Wirg Panels OuatOt Scala 1/3 Scale MONOCOUPE NA Wingspan 92 Onerall Length - 2100 sq Wing Area Fnr 29 en 38 CID hegines RC3S-4 Bill Ellinget Foonding Mewbnt AMA NFF5 Hall nt Fewer Pricee tor complete plans sub asnemclv S detailed parts hOts PLEASE ADD g3gO shipping wailing tobsl sew 1991 Plan Seer OrvOhere Irafriodasle ovar firel orderli WE TECHNICAL SERVICES RO Box 420144-S Atlanta GA 30342 190 Model Aviation No NITRo Runs 5% Gets about 1 minute ounce fuel OPS MAxI 30 18 Statically dynamically balanced 5 intake ports shaft induction roller ball bearings long stroke pump carb readily available parts l8x8TopfightM.8l85rPm 20 x 6 Zinger8036 rpm 24 x 8 Zinger 30 rpm stock VS parts 54sPeoPleof now selling low cost continuous-run littlebreather strip T-fitting just $5 RC Soaring/Blakesleepumps work great onlymore set obviously way go Continued page 188drawback its too serious thatCST has convenient toll free order pull maximum six inches ofnumber l-800-338-lCST Aerospaces mercury Six inches shouldpump called E-Z Vac goes E-Z use white foam anyway whenLam ACPs excellent epoxy laminating using blue foam cores much vacuumresin sells $6500 itself probably adequate work$7500 both plus $400 S&H set CST calls pump Mighty Mini-similar CSTs ACP set also Vac sells $6995 itself andincludes very neat hose fitting $7495 both plus $600 S&H set asattaches flat surface bag plus shown photo includes threetwo Quick-Seal clips below yards nylon bagging tube sealant ntinued page 192 opper iant Semi-Scale Sportster reminiscent 1930s Heath midwing homebuilt Spans 85-in 90 power 2 plan sheets No 704 Arrow$500 CL Stunt Wing inspired 1960s-vintage Bill Netzeband designs new PAW 049 diesel engine Spans 298-in No 705 Zenith$200 FF Hand Launch Glider serious competition Wing DT spans 18-in 35-38-gr $375 No 193Selleito CL Stunt model lMcDonaIdl winner 1976 1999 1982 FAI World Champs$ No 262crashmaster CL crash-proof trainer two sizes15/30 35/40 power No 3101930 Ftet Biplane AC Sport Scale 35/40 4-channel Wingspan 56-in 4-scale Two plan sheets$625 Mo 314Drake II AC Ken Willards flying boat 3channel 15 power Fly land wofi removable gearS375 No 326Taylor cub AC Don Sinus Schoolyard-Scale tar 049 power 2-3 channel Spans 50-inS359 No 332Zephyr AC small 2-channel Glider hand-launch tow thermal slope soanog$290 No 368LaSer 200 AC Sport Scale replica championOhip Aerobatic flier 40 power 4-5 chanoel Two plan sheets$1075 No 447twA MIsS America AC Old Timer Texaco model 049 910w 2 chaneels$650 No 4604-40 AC shoolder-wiog Sport flier 4-cycle 40 power 4 channels$650 No 539Simltar slow-MotIon 15 AC Tailless flying wing 15 engines spans 60 ones 3-cb AC$359 No 578Schweizer 1-260 AC Quarter-scale Sailplane spans 125 Two plan sheets$1475 6No 581Gee Bee Model Y AC Golden Age Racer spano 72 scale 60 power Three plan sheets$ 1175 0No 588Marish AC Slope-Soaring Sailplane spans 41 uses 2 AC channels$ 425 No 598coronae 150 AC-Assist Old-Timer enlarged 150% opens 7210 uses 40-size 4-strokel 30-size 2-stroke$ 950 cjNo 603Sparrow Hawk P-30 FF Competition robber-power plase won 97 Nuts Spans 30 in$ 225 No 626Sweepee AC Sport/Paltem canards forward-swept wing spons 64 in. uses 40 power 2 plan sheet SI$ 1300 No 626Prime cue AC Sport/Aembatic plane spans 99 in. sans Quadra 35140-size power Two plan sheetsS 1390 --No 630OrigInal Fly Baby AC Old-Timer spans 72 in. uses 19125 2-cycle 49 4-cycle power 12 plan sheetsl$ 1150 0CNo 644Bellanca columbIa AC Schoolyard Scale 2 AC channels hA engioe Wingspan 46 ur$ 575 No 646Winter Hawk FF Rubber-power Coupe dI-liver compotfilan plane spano 47 inS 375 CO anNo 65047/60 RC Special AC Aerobatic sport plane 49 power spans 61 3 plan sheets$ 1975 05 0 No 602Der Pledermauw AC Low-wing sport plane 20/25 power spons 55 in$ 675 o -No 6541amecat AC Trainer/sportoter styled like F14 spans 66 49/61 power Four plan sheets$ 1525 .No 667Super Squire AC Troiner 35/40 2-stroke 53 4-stroke power spans 56/a in$ 759 0 0No 659Boom Box FF Wakefield Robber compettion plane spans 54 in$ 490 0No 601Embry-Omatic FF Embryo Endurasce mbber-power plane spans 20 inS 290 No 663Pee Patch AC Sportster spans 69 uses 49150 4-stroke power 2 plan sheets$ 990 E 0No 664Stuka Stunt CL Stutter semiscale spans 37/a inS 590 No 605conacierittous Oblector FF Moloihill Rubber competition pfane spots 59 flat$ 575 503 66 s AC Sportoter spans 49 uses hot 29132 power 12 plan sheets 75 No 607AT-6 CL Semiocale profile StonIer 35/40 power spans 47 inS 575 6 ENo 609Roto Raven AC Sailplane unique twist-wing control Spons 76-ie Requires elevon nasing$ 650 z CUNo 671cessna cardInal FF Reminder Scale sport flier power spans 39-isS 575 INo 672Krackerjac AC updated version pioneer sport plane spans 74-in two plan sheetsS 1375 No 674 Krumpier AC 975-powered Electric semi-scale bi-winger spoan $ 575 oS 225 No 675BOF-1 FF twin-tailed sport filer Coo 02 Pee Wee engine spans 25-in No 676HIlIner AC twin-electric high-wing Sport ship denigned H6ine lmp-39 motor Has tricycle gear spans 40in.$ 406 -C-No 677ThunderbIrd CL Stutter 29-35 power Two plan sheets drawn original 1982 Veca Spans 54 in$ 975 eNo 676Sean Box FF Woof Coast Bostonian Outdoor design Spono 10//a in$ 159 -o 05oNo 679BIg Blngot Large AC Sportster sporo 95 120-24 power Two plan sheets$ 1790 SNo 6011969 Beds BD-4 FF Rubber Scale modni spans 18 in$ 325 No 682B T VIntage Trainer AC Reminder-Scala Sportster 20-size engises Spans 47% Two plan sheets$ 1156 No 684Staggerwlng Beech 3-Channel RC Schoolyard-Scale to-wieg Sportsler 049 power Spans 32-in$ 375 50lbNo 685Akro-Bat CL Stunner high-performance 049 engines Spons 32-in$ 230 E bNo 686Fotler AC Pattens-typa sport plane 2- 4-cycle power Spans 65-in$ 725 0 688 alth GlIder PP robberband-launched toam/baise Canard Catapufi/Steath Obder combo Spaes 9-in 60 No 689Thomas Morse Scout 54C AC 4-scale biplane 90 power Spaos 63-in 3 plaa oheets$ 1975 IDNo 690p-62B TwIn Muateng CL Profile Sportoter twin MVVS 25 diesels Spans 48-in 2 plari sheets$ 1050 C 0No 6911927 NL2 FF Scale model Polish bomehoifi tar 8-8 watt motor mkber 902 Spans 29-re$ 225 0No 6923 Meter Scooter AC High Performonce Sailplane Spons 118-in 2 plan sheets$ 1159 693csrdlnal classic CL Sport Stunter 35 power Spuos 50-in$ 575 CNo 694AIrmaster AC Canard Sportoter lnr two 40 push-pull engines ar 60 pusher tractor Spans 66-in 2 plan sheets 5 1475 -0No 695Spirit St Louis CL Scale replica far 1525 power Spans 46-in$ 575 0No 696Pole cat FF P-30 Class AMA Senior record holder Spans 31-in $ 225 No 697Tlgerkltten 8 AC High-performance Sport Aembatic design 05/15 Coba9 electric power Spans 54-in 0one plan sheet plus two-page inotrocton booklet$ 1990 -~No 696NovaClone CL One-denigo malti-enent Sport filer 35 power Spans 42-rn$ 490 No 699 Top cat 90L-1 FF Robber PAl Indoor Stick Gliderhot der AMA Cat PlO & Stich Naimnal Records Spans 13125-in oTwo plan sheets$ 390 o 700 Randys DIme AC economical versatile Sport Trainer ideal 10 power Weigirs 33-az spans 50-in$ 575 0 115 No 701 Jumpln Gso AC high-performance Sportster designed fun fly events Weighs 3-9 spans 48-la 40-45 power $ 725 No 702 Nelnkel NE 18 PP Scale model 1924 German monoplane Hiline Mlei-6 geared elecfdc motor Spans 28-in 290 005~ v32][b-1-10-1-10]] C5 rcle numbers plans wish order best handling please include re- quests payment some other service plans order i 3262310314326332386447 460539578581588598603626 00 ua O628630644646650652654657 cs coo659661663664665666667669 ZZO671672674675676677678679 E681682684685686688689690 691692693694695696697698 0 qPlan 699700701702703704705 • price includes first class postage US delivery Air Mail over 300 miles Far orders nan-US address e add $258 far AIr Mall asia sand handlln Ian check money order payable US funds drawn US bank Model Aviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery 0 Please print carefullyEnclosed $ NAME_________________________ AMA No _________ _ ET CITY LTATh ZIP________ Plans orders must received AMA no later December 1 Model Aviation Christmas delivery again set best buy ACPs address Box 16621 Irvine CA 92714 Phone 714/250-1107 CSTs Gail Gewain sent Mighty Mini Vac set try must say after using bag wood veneer skins Thermal Eagle wings Im completely sold Just plug let humm away Being belt suspenders type took vacuum gauge off other pump make sure Mini-Vac pulling okay finger over hose indeed pulled six inches mercury connected bag must have pinhole leak because reading stayed bit under five inches good enough though As long bagging few other items worth mentioning CST has 35 ounce unidirectional carbon fiber fabric comes 10 inches wide sells $1200 per lineal yard beautifully thin 5 thousandths thick material perfect wings layer two lightweight glass top George Span Aerospace just introduced reusable Quick-Seal clips used seal ends vacuum bag tubes consist 743 inch solid plastic rod fits snugly inside fairly rigid Ushaped plastic channel 20 inches long just place bag over channel push rod channel thus forming easy doand undoseal $350 Another new item George pair pumps E-Z Lam preset dispense ounce per stroke part resin e per stroke part B hardener will blessing baggers dont have precision scale weighing epoxy New League Silent Flight Address LSF President Bob Steele communicated LSF now has new permanent mailing address 10173 St Joe Road Ft Wayne IN 46835 old Winfield IL PO box wrn continue forward mail year until August 1992 Bob says mail turnaround time will back 7 14 days used Members may phone Bob 219/485-1145 Mankato Model Soaring Society newly formed club North Mankato Minnesota Bob Botha driving force says has permission use nice 40-acre sod farm flying field Interested sailplaners electrics welcome too area should call Bob 507/345-1832 evenings weekends Southwest Winter Soaring Contest will again sponsored Central Arizona Soaring League held Phoenix February 1 2 will two one-day contests flying modified Triathalon precision duration tasks Sounds like good place schedule winter break info write Chuck Wehofer PO Box 2472 Chandler AZ 852gEli
Edition: Model Aviation - 1991/12
Page Numbers: 48, 49, 183, 184, 185, 186, 188, 190, 192
THE MODI 900 Greco Technologies Youre probably asking Whats Modi 900 what Greco Technologies honest can pass about either time material gleaned press release phone conversation gliders principal designer Greg Chun Greg works Greco Engineering division Greco Technologies told company new model manufacturing wants enter business adjunct engineering consulting work rendering shows attractive Modi Its specifications modem up-to-date thats about know Greg said have gone through three design versions examples final design about late August placed hands experienced fliers evaluation Entering model glider market especially high end isnt simple proposition Before offering glider sale design must thoroughly tested Construction details must proven workmanship shown high quality Most important gliders performance should compare well competition time read Greg says Modi will flying Southern California contest circuit should reporting real life results soon Until would seem best treat following press release news item heres Readers Digest version Greco press release Greco Technologies excited announce arrival Modi 900 open-class competition sailplane has 50-inch fiberglass Kevlar fuselage RG15 triple-taper-cut wings made out extruded blue foam glass lots uniweb carbon fiber cloth development unique sailplane undertaken Greco engineering technical consulting firm Pasadena its staff aerospace engineers sailplane enthusiasts allowed insight both technical aspects aerodynamics wants needs hobbyist Modi 900 now off drawing board production available public Modi 900 sets itself apart competition its strength durability layer plane designed built strength versus weight considerations mind wings start PRB blue foam base overlaid full layer top bottom 45 oz carbon fiber cloth plus second layer cloth top 10 inches bottom 15 inches root wing strength encased 14 oz fiberglass 48 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Dan Troxell Laguna Hills CA bought fuselage Trom Holana Kern Germany made own wings half-scale Grobe 103 Aero two-place glider will featured January Artists rendering beautiful Modi 900 Greco Technologies ship will come largely pre-built ARF Designed thermal multitask competition has 1 1Oin wingspan 903 sqln weight 70 80 ounces Chris Aho left holds dad craigs protoiype RnInum y uuuuIu De signs Anthem updated improved Lovesong Right winners 1991 Southwest contest Phoenix L-R front Ian Dou glas John Mangino beck Steve George Ed Holder both Leg ends Jim McCarthy Comet 89T 1992 Southwest Feb ruary will bigger belier yet cloth laminating epoxy root ribs sub ribs 14-in plywood laminated strips carbon fiber ensure endurance wing joiner rod -in carbon fiber rod encased brass tube giving tensile strength steel fraction weight Aluminum shaft hinges flaps ailerons included ensure rigidity under high pressures fuselage constructed Kevlar fiberglass Under testing Modi 900s wings withstood pressures approximately 375 foot pounds before delamination Other vital statistics include Span 110 wing 50-in fuse wing area 9026 sq weight 70-79 oz wing loading 110 oz/sq ft aspect ratio 1311 airfoils RG15 wing 5D8020 stabilizer kit comes two forms pre bagged Almost-Ready-to-Fly pre bagged kit comes wings rough stage just out bag kit takes 30 80 hours complete retails $595 ARF kit comes hardware installed finished wings takes 10 15 hours complete radio installation retails $895 information catalog contact Greco Technologies PO Box Anthem Dodgson Designs new name pedigree going back 1972 Bob Dodgson began manufacturing aileron glider kits Bob introduced 134-inch-span Windsong 1982 few years ago strengthened structure cope modern exuberant flying styles renamed Lovesong Songs have probably popular thermal competition ships during period Continued page 183 December 1991 49 10 South Pasadena CA 91031 call 1800-34-GRECO Ext 23 Feather Cut hot wire foam Cutter gives builders easy-to-do Pro quality results small low-cost vacuum pumps answer bag gers prayers Mighty Mini-Vac R Composite Structures Technology Nylon bag material breather felt sealant part system whole thing available CST $7495 Mid-Columbia/Blakeslee Continued page 179 heard planes touch Yeah glad Rich such smooth flier didnt flinch RC Soaring/Blakeslee Continued page 49 around country Bob says hes sold several thousand kits Now Bob has updated Song design based experience latest kit Saber Basically Anthem Song 5D7037 airfoil obechi sheeting flying surfaces aileron flap servos wings 48-inch bullet proof wing spar %-in joiner rod Bob says newsletter Second Wind prefer larger glider scale-like profile easy see great distances want added L/D long span high aspect ratio wing nothing available can match Anthem limited time will continue offer Lovesong have computer radio prefer slower flying yet high-performance tripped Eppler 214 airfoil sure get Lovesong theyre still production suggest wait gone AVIATION CHfISTMAS GIFTS SALE r VALUABLE COUPON ngall paper CORSAIR Procut/colored W/MOTOR $4 2 for- $6 ___ ~Precolored GIFT glder-sI ers & envelopes j2 $3 24 $5j CATALOG 1 3000 planes $18______ w/lst order- over PAPEII AIRPLANE club $1500$251 PAPER AIRPLANES II 433 NIHOA STREET KAHULUI HI 96732 USA ISeI uVoo will gone Prices Anthem Base kit $279 kit pre-built spars $345 kit pre-sheeted wings stabs rudder limited availabilitycheck before ordering $430 add $12 UPS shipping kits Write Dodgson Designs 21230 Damson Road Bothell WA 98021 Phone 206/776-8067 Monday-Friday 10 am 5 pm Pacific time Bobs Second Wind newsletter good way keep touch whats happening Dodgson Designs About 700 customers subscribe Two issues per year spring fall published cost modest $200 $300 Canadians An Anthem builder Craig Aho Mountlake Terrace near Seattle Craig called sing Anthems praises kind enough send photo letter picture Anthem promised son Chris holding Sorry poor quality photo Anthem fantastic flier using 5D7037 airfoil new spar system roll rate impressive speed range wide good top end aircraft still has best light lift qualitiesas did its predecessor Lovesong Ive hung up Falcon 880 now Ive got aircraft built prototype 60 hours dee 6rckoo/ Learn fly ottr planes private field Five Dr 6 day course $350 Open year round Send SASE Complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 scratch built wood parts builds fast large enough see easily has classic Song look Bob now offering new option Anthem Saber completely pre-sheeted flying surfaces additional $150 ATRCS Version 30 u p-grade brought guys Control Systems Laboratories Gene Englegau Tom Mroz Youll recall introduced ATRCS conversion Airtronics Module transmitter summer 1988 Shortly thereafter Airtronics contracted CSL provide similar hardware software very popular Vision transmitter CSLs latest announcement Now new improved software revision plus improved components can installed December 1991 183 ~IEKINO STEPPING INTO THE FUTURE OF R/C THE NEWEST IN ELECTRIC FUGHT PRODUCTS Units Feature Surface Mount Technology Light Weight Ultra-Slim Advanced Linear Design Low Current Draw lOMA High Power MOSFET Design 118 Cells 24 Volts 40 size motors Electronic Speed Controller ESC Electronic throw ad pat pend ESC 100120 amp coot 300 amp surge$5995 Electronic Switch ESW Fully adi reversihle point indicator ESW 23030 amp coot 75 amp surge$2995 ESW 26060 amp coot 150 amp surge$3995 ESW212O120 amp coot 300 amp surgeS5995 Please specify receiver coon ordering prod ucts Guaranteen 6 months trom purchase dote Call write details TREK IND regon Ave ord NY 11763 516 758-8170 LIGHTING SYSTEMS THE ORIGINALS. Still Best *RED 01Programmable Flashing Navigation Lights 9V$2495 #RED 02Strobe Light Ad] Rate 9V$1995 *RED 03Landing Lights 48V$3995 *RED 04Mars Rotating Beacon Ad] Rate 9 V$1995 #RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 #RED 23Real Strobe Light true zenon strobe 3V$2995 S SEE YOUR DEALER 0 SEND STAMPED ENVELOPE FOR RAM INFO unavaIlable locally send check money order full credit card info coat Item plus $400 $5 00 foreign immediate shipment Include full addresa U PS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 Near AiRES MOLLS METALS 500KS PRECOS5ON INSTRUMENTS ~COMPLETE COTOLOC $200 TDDLS CD C4M1U RoO OTs items sPr~iB2555ssss * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No 202 Air Cleaner Fine *275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc po Box3786 Cones Mchganaole Add $250 sh pp op M ch gao ea dents add 4% ua eu taxI 11376 Ridgeway RoadKensington OH 44427216 223-1950 DrtObatiC span $17995 span -$18995 Sportobatirs M 84span92span-S1to 84 Sportobatics 10 lbs ideal 90 2C 120 4C engines 92 versions 13 lbs perfect ST2000-3000 equivalent engines Both versions build quickly lite-ply & balsa fuselage & tail & foam wing Sportobatics fill need hotdog show-off sport planes Knife-edge takeoffs flat spins snap rolls rtobatics will anything can yet land like strainer Super Canopy Ohio CS-equipped 5P7 Vision 85P transmitters up-grade consists following features ATRCS 5P7 Module Transmitters Replaces Micro-processor improved versionallowing larger sophisticated programs Replaces setup memory chips larger capacity setdoubles setup memory 8 setups Up-grades ATRCS transmitters include new featuresAdds PCM fail safeAdds aircraft naming setup Vision 85P Transmitters above plus additional receiver capabilityFutaba FM-PPM 4-8 channels Both Vision 75P ATRCS transmitters will work RCD FM-PPM 4-8 channel receivers JR FM-PPM 4-8 channel receivers past would have write down setup information since $25995 Giant 99 x 16 Vinyl Clad Nylon Yellow Blue White Two-Color Combinations 8 rugged tube frame 10 easy-out stesi tent stakes nylon guy cords Folds neat hesvy-duty cardboard box goes up quickly complete instructions Optional name city state printed ends $6000 replacing setup memory Now due improvements methods no longer have will automatically save setup information generate paper hard copy restore setups new memory chips hard copy will sent back along transmitter records price version 30 up-grade just $9500 plus $400 UPS ground $1000 UPS blue shipping CA residents need add local sales tax Payment check money order Visa Mastercard Send ATRCS transmitter less antenna battery Control Systems Labs 238 So Hillview Dr Milpitas CA 95035 Phone 408/946-4142 Feather Cut Hot Wire Foam Wing Machine new foam wing cutter produced Tekoa Center Design company better known us LA area father/son team Roger Blayne Chastain As read last month Terry Edmonds Nationals report Blayne Senior age group flier placed first both Standard Unlimited class fact Unlimited class beat Open age winner Brian Agnew point Roger called back asked Id like try machine said betI want cut some cores anyway Roger thought Id suitable test subject because have never cut cores before course Ive seen done Julian Tamezs Channel Productions foam cutting video person other occasions Ive always built kits never cut own cores machine arrived very sturdy 55inch-long mailing tube small parts neatly individually packaged long poly bag whole thing went together about hour Its mainly just matter following easy instructions looking diagrams threading screws nuts together two main parts machine made blue anodized extruded aluminum right off bat know Roger has put lot effort project larger extrusion called body 51 inches long designed mounted edge work bench held place tape easy removal taped edge 24-inch-wide hollow core door sets table As can see photo mounted body two horizontal two vertical rollers four rollers can slide back forth tracks fixed place wing nuts rollers adjust machine 184 Model Aviation OHIO SUPERSTAR PRODUCTS INC ADAPTOR THROW-A-WAY YOUR COLiETS CHUCK & WRENCH USE OUR 0 TO jCHUCK DREMEL POWER TOOLS RUNS 100% TRUE & ONCENTRIC AT FULL RPM NO 501 ADAPTOR ESS cHUCK $1895 IDREMEL 850395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POUSHED STEEL USED FOR CUTTING PLASTIC WOOD SOFT METALS LEXAN PLEXIGLASS & ETC AVAILABLE IN 006 008 010 012 014 016 018020023 025 V028 032ThICKNESS NO 502ARBOR$800 OUR IDE DIAMETER @ $675 EA NO 503 014 X 114 SAW $800 SAWS ONLY WORK WITH OUR ARBOR MICRO SELFsTARTING TORCH No need Ifint matches Just press Piezo Self-Starting button -for micro size adjustable flame barns 237h up 3 hours Operates standard cigarette -hghter butane refiflabfe Tank fits comfortably palm hand made high-impact rubber allows safe non slip comfortable grip Sapplied can butane MT770 Blow Torctt $3500 ne butane MT771 Butane 5 oz0600 EASTERN TOOL& SUPPLY CO I49GRANDST -NYC NY 10013 WRITE FOR CATALOG$300 ORDERS 212-925-1006 WHEN ORDERING- PPD ADO $300 OFFICE 212-226-3749 CODADO$500FAX212-925-1010 cut cores up 50 inches long almost width taper rollers guide two very flexible 22 gauge power wires connect hot cutting wire alligator clips other ends wires connect low voltage power source power wires serve heat cutting wire also pull hot wire through foam block smaller extrusion called control arm 48 inches long pivoted left end body has two purposes compensate difference two power wires travel cutting tapered cores provide pull power wires Tapered cores tricky because cores root 10 inches tip nine inches power wire root travels pull length inch exactlyexplained below the tip control arm has graduated scale its face reads zero 100 use set cuts taper ratio ie tip/root pull lengths root end power wire always attached 100 tip wire attached number calculated pull power wires control arm carries 16-ounce lead weight mounted near middle gravity provides motive force hot wire mounted bow 27-inch length 3A inch x 2 inch wood 10-inch-long diameter music wire legs end wrap 18 thousandths T-370 cutting wire around leg bend legs together specified distance wrap around other leg bend legs provides proper tension wire Roger says cutting wire special neither ni-chrome nor stainless steel leader wire standard bow will cut cores up about 26 inches long might think kinda short designers going Schuemann planform type wing has multiple breaks leading edge need two three sections core per wing panel Since foam comes 24-inch-wide pieces its easy economical design two-foot sections can make own longer bow picking up piece wood local lumber yard Roger will soon coming out new aluminum bows 28 40 52 inches long will have feature being foldable legs thus saving storage space Lets now quickly review three ways can cut cores hand gravity electric motor drive Guiding bow hand straightforward method However get good consistent cores youand perhaps helper other endneed practice steady nerves make constant speed cuts Electric motor powered cutters can quite sophisticated require lot rigging gears belts such important take experienced operator correctly regulate both December 1991 185 Funniest Amateur Video Ever R/C FOLLIES PRESENTS CraziestWackiest Funniest Model Airplane Wrecks Youll Ever See! Over 30 Minutes CRASH after CRASH after CRASH Flying off lake smashing ice What happens hand launch forget turn radio plane seaplane turn treeplane Rocket engine mounted Eindecker Four wrecked planes turned Twin flew just lot Bad flying much Dont miss one-of-a-kind exciting funny video offer youll ever see $1 995 plus $3 shipping handling HOLLAND SOUND SERVICES 1 Dunham Dr Dunmore PA 18512 phone 717-346-8742 VISA-MASTERCARD PA Orders add 6% sales tax speed cut heat wire Otherwise foam will burn excessively too hot/slow wire will drag too much too cold/fast As mentioned above Feather Cut machine gravity type cutter Its beauty simplicity set heat cutting proceeds automatically its own pacea feature well suited new users As said Im new game myself Feather Cut machine has couple novel features appear make work better other designs Ive seen feature sliding lead weights legs bow cutting airfoils bottom profile slide weights toward hot wire wire maintains good contact templates going downhill cutting top profile slide weights back wire has less downforce templates going uphill second related feature bow works horizontal position small tailwheel middle wood part bow allows roll across work surface during cutting old method operate bow vertically suspended springs rubber bands course another potential source adjustment error hardest part cutting foam cores making templates instructions Roger recommends second motion S Discover SECRET TO HASSLE-FREE CHARGING Dont miss perfect day because uncharged batteries amazingly simple AUTO-TRICKLE ADAPTER converts ALL overnight chargers FULLY AUTOMATIC TRICKLE CHARGERS Nothing else like Simply plug wall plug overnight chargers push button forget about batteries whole fleet will ready next day week month year Nothing solder connectors buy 100% solid slate device safely reduces chargers output pulse trickle after 16 hours Directly supports 1 3 chargers However powerful 120 Watt capacity easily HANDLES UP TO 30 CHARGERS Nothing else comes close convenience simplicity safety cost effectiveness T I1 E Hurry secret out Get AUTO-TRICKLE ADAPTER TODAY YOUR LOCAL HOBBY DEALER send $3995 5&H Directly Tejera Microsystems Engineering Inc 800 729-9210 PO nox 340608 Tampa Florida 33694 ADVANCED AERO PRODUCTS VS & Os SIMPASS 120 EXI4A5BT SYSTEMSrii 55 50155 toO sFoOUATO4 5555 HWnE5 W5 PATTERN MR5FT AND WINATS 551 ODvANCeD ASRO poosacos OTT 505 25-C 5450 T5 75553 554 954-3945 using Chuck Andersons Airfoil Plot Program draw full size airfoil profiles computer printer Chucks program $25 Address Box 305 Tullahoma TN 37388 Phone 615/4555788 glue printed airfoil plots horizontal grade Formica horizontal thicker vertical grade 3M No 77 spray adhesive cut out jig saw accurately sand polish surface hot wire rides Note need two paper plots per wing section because airfoils template made two parts matching pairs pairs cutting airfoils bottom profile other top type template must used Feather Cut machine because always cuts top surface template early days foam cutting templates same wing rib used two-piece templates have proven better kind core cutting because register work surface unwanted twists wont introduced sketches below show typical pair templates SD 8020 stabilizer section dashed lines indicate actual section chord spaces before after actual chord hot wire lead-in lead-out ffp7j.4t1 #A 3orT-l cur rIPiPLAT 4A r GuP operation pin sharpened pop rivets work fine bottom templates leading edge always cut first ends foam block must first pre-cut cores planform hand using hot wire bow using Formica triangles Continued page 188 186 Model Aviation Model ATAcxl works existing NiCd overnight C/10 chargers Yes works cordless power tools toys individual cell chargers ste THE WIREMASTER TM ndcrfcoler 4 different models wire bending tools offet Also available Alloy Stainless Aluminum Melric hardware Checkyour dealet first un available send business size SASE free catalog JCM COMPANY 114 washington Torr Dopt Waukogan IL 60085 Efficient wide tips thinner airfoil sections combine greater thrust noise suppresion Will out-perform wood & other plastics water sand & gravel runways Made strong 33% glass-filled nylon RPM rating 160K divided diameter inches 1/2A Series 55x4 55x45 6x35 6x3 6x4$ 99 GIF Series 7x4 7x6125 8x4 8x6135 9x4 9x5 9x6 9x8 95x6155 10x6 10x7 10x8.. 175 11x6 11x7 11x75 11x9195 K Series 12x6 12x8 285 13x6 13x8 385 14x6 14x8 495 15x8 15x10 545 665 16x6 16x8 Antique Series 10x5 11x6 12x6 13x6 14x7 16x7 225 245 335 435 545 715 See local hobby dealer Master Airserew propellers accessories Windsor Propeller Co 3219 Monier Circle Rancho Cordova CA 95742 57-6 AL guides Make sure templates resting squarely against perfectly flat work surface foam well weighted down make bottom cut replace bottom templates top ones top cut template pairs must have exactly matching pin holes replace bottom template top same holes foam used otherwise cuts will off Because bottom cut first core settles its bottom bed need compensate templates width wire-cut minimized hot wire cuts core about 10 thousandths undersize vacuum bag cores glass/carbon fiber undersize about right allow skin thickness Once templates made found using Feather Cutter piece cake Im type person Murphy mind because can usually find some way screw up time try something new machine worked beautifully right out box encountered no problems making perfect looking cores say highly unusual Just get everything set hot wire resting templates four rollers adjusted power wires attached hot wire control arm turn power supplyand away goes foam makes very satisfying sizzling noise hot wire slices through about inch per minute need sit watch go catching bow wire comes out trailing edge can use low voltage up 28 volts power supply like Variac adjustable transformer opted get Rogers Thermal Generator because no-fuss operation unit makes perfect companion Feather Cutter Roger says has fool-proof wire temperature control certainly found true simply adjust knob center dial needle Thermal Generator senses resistance whatever length wire using automatically supplies proper amount power heat wire about 2122250 Simplicity itselfl & MODEL BUILDING 7SERVICE RADIO CONTROL PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 wATcI4oGuE ROAD 8 SEAIEN SAM 8 NY 10314 As foam Roger recommends using Dow PRB Plaster Ready Board blue material same blue Dow Square Edge insulating foam PRB has density two pounds per cubic foot rated 25 psi has open aggressive cell structure Roger says want build killer wing consider Dow HI-l 15 High Load board rated 115 psi six lb/cu ft difficult locate though Finally lets get back tapered core paradox wing root 10 inches tip nine inches youd think taper ratio set control arm would 900 no standard procedure Continued page 190 0 0 0 0 j 0 0 0 0 Ousrlerffiaster Sport lips 73 Span 035 similar $21 build FUNK 385-C$25i~ 1/4 scale 108' Span 12 four stroke scale 84 Span 61 four otroke$21 o photo reduced igaS KINNER SPORTITER K 4 scale 117 Span 035 S cylinder $25 ylinder radial scale 76 Span 61 four stroke $1 o reduced DAVIS 01K scale 905 Span 035 5 cylinder radialp~pPs r/6 scale 603 Span 45 four stroke$1 500 photo reduced STITS PLAYHOY$25I /a scale 88 opus 035 larger 188 Model Aviation Leader Small Airfoil Technology MASIE 11 AHISCREW TAYLOFICRAFT q in 12 $250 61 DGAO Piano O0riOgl PHOTO DOCUMENTATION PACKS uvu"- nrr Scule Piano Alt PLANS NOLLE5 OOIPPFS P5 C cdli Insirocion Sonidet e.money Order COOs clip power wires hot wire inch either end foam block root end power wire actually travels little 10 inches tip end wire travels little less nine inches determine actual lengths travel easiest way place pre shaped foam block piece paper project end inch straight edge pencil measure projected ends Feather Cut machine sells $13950 plus $850 S&H Thermal Generator $9450 plus $450 S&H Both may ordered Tekoa Center Design 3219 Canyon Lake Drive Hollywood CA 90068 Phone/Fax 213/469-5584 New Low-Cost Vacuum Pumps piece April column about making vacuum pump refrigerator compressor generated lot interest knowing what now wouldnt have bothered making Both Composite Structures Technology Aerospace Composite Products WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries fh chargers need pacd6aget wet Cell & Cycler-Chargec *23996 Fits 48V RX 96V Tx p00ll5Plus $750 S&HaGeGelled Cell Others available write calle erieS Regular Model. 96 field kit sinaiPlus $500 P&H electriC boat batteriesSpecify 612 24V 8qnL Canton II spoil winch large boat andPlan $600 P&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssE Ion OlloineailooPO Box 221 605ga-5g24126316V Bill Eff get * says Only Piano Pattetott Sets give anvorted designs want have selected best classic designs time foe pvc choose tcer patterns tot part ate impottast eaclusice feature Curtiss HAWK PlC 9400 wingspan68 length 2268 sq snieg aeon Fnr 13 23 ClO engines annel RIG RCOS 14 $2498 7 ii Curtlss FALCON 0-I B/A3 114 wingspan ength RCO$13 -- g2ggh 3160 sq wing area P023 tn 3h CID engines annel RIG One-Tb dSae NVTI~PpeT Pee PA22 38 ~jn7413SaePpe Cub 3 Quarter Scale- WWI0$7f SE-SA wing area 78 22 engines gg/e wing spane222g 5g PCO$-7 h0 SPAD C-XIII 7g%wingspan212P5gin wing atna 13 31 nogines Capable lynt captotes imagination RCOS-h 5 FOKKER DR-i TRIPLANE . 72 wing spen sg 0K wing atno 78 1 h$ engines PCOSh 8 5OPWiTH CAMEL P1 Sd wing span 1 5g wing area 11 lbs wlo SIC woodS balsa consttuction over hh sg ft drawings PCOS-t 1 5 Fokker DVII P$ wiognoan 2220 Sif iv w $ $0 2h cid engine ch SCOSS h 1/4383810 Albatros DVa d War-f FIghts -gairrsynoontecsamekn Pwntaett y cc$ioder roth P Shrmwe ergee ii tee silihOPli OnritOOO$utaeotmm w OteitO Onni tOns S Orta 500* ncnelr vets ano 5i gotapeenedsyeaaarctsefl iCtfttp ovim 000017 tetlOtnOt den ic perlano arigealca Iv ne pci en oem tepernien nat reocaaO6eieiCOatgeaae erpre padr end Sitar 00000$ isodog gee FOrt3102301 0 pogroac weOe Oppor rOiOsliessnCIOO wirgepan 4 COnnoni nic g Overall Leogro itied Scale Liar eanom OrtOii 2072 sy wing grea a Wirg Panels OuatOt Scala 1/3 Scale MONOCOUPE NA Wingspan 92 Onerall Length - 2100 sq Wing Area Fnr 29 en 38 CID hegines RC3S-4 Bill Ellinget Foonding Mewbnt AMA NFF5 Hall nt Fewer Pricee tor complete plans sub asnemclv S detailed parts hOts PLEASE ADD g3gO shipping wailing tobsl sew 1991 Plan Seer OrvOhere Irafriodasle ovar firel orderli WE TECHNICAL SERVICES RO Box 420144-S Atlanta GA 30342 190 Model Aviation No NITRo Runs 5% Gets about 1 minute ounce fuel OPS MAxI 30 18 Statically dynamically balanced 5 intake ports shaft induction roller ball bearings long stroke pump carb readily available parts l8x8TopfightM.8l85rPm 20 x 6 Zinger8036 rpm 24 x 8 Zinger 30 rpm stock VS parts 54sPeoPleof now selling low cost continuous-run littlebreather strip T-fitting just $5 RC Soaring/Blakesleepumps work great onlymore set obviously way go Continued page 188drawback its too serious thatCST has convenient toll free order pull maximum six inches ofnumber l-800-338-lCST Aerospaces mercury Six inches shouldpump called E-Z Vac goes E-Z use white foam anyway whenLam ACPs excellent epoxy laminating using blue foam cores much vacuumresin sells $6500 itself probably adequate work$7500 both plus $400 S&H set CST calls pump Mighty Mini-similar CSTs ACP set also Vac sells $6995 itself andincludes very neat hose fitting $7495 both plus $600 S&H set asattaches flat surface bag plus shown photo includes threetwo Quick-Seal clips below yards nylon bagging tube sealant ntinued page 192 opper iant Semi-Scale Sportster reminiscent 1930s Heath midwing homebuilt Spans 85-in 90 power 2 plan sheets No 704 Arrow$500 CL Stunt Wing inspired 1960s-vintage Bill Netzeband designs new PAW 049 diesel engine Spans 298-in No 705 Zenith$200 FF Hand Launch Glider serious competition Wing DT spans 18-in 35-38-gr $375 No 193Selleito CL Stunt model lMcDonaIdl winner 1976 1999 1982 FAI World Champs$ No 262crashmaster CL crash-proof trainer two sizes15/30 35/40 power No 3101930 Ftet Biplane AC Sport Scale 35/40 4-channel Wingspan 56-in 4-scale Two plan sheets$625 Mo 314Drake II AC Ken Willards flying boat 3channel 15 power Fly land wofi removable gearS375 No 326Taylor cub AC Don Sinus Schoolyard-Scale tar 049 power 2-3 channel Spans 50-inS359 No 332Zephyr AC small 2-channel Glider hand-launch tow thermal slope soanog$290 No 368LaSer 200 AC Sport Scale replica championOhip Aerobatic flier 40 power 4-5 chanoel Two plan sheets$1075 No 447twA MIsS America AC Old Timer Texaco model 049 910w 2 chaneels$650 No 4604-40 AC shoolder-wiog Sport flier 4-cycle 40 power 4 channels$650 No 539Simltar slow-MotIon 15 AC Tailless flying wing 15 engines spans 60 ones 3-cb AC$359 No 578Schweizer 1-260 AC Quarter-scale Sailplane spans 125 Two plan sheets$1475 6No 581Gee Bee Model Y AC Golden Age Racer spano 72 scale 60 power Three plan sheets$ 1175 0No 588Marish AC Slope-Soaring Sailplane spans 41 uses 2 AC channels$ 425 No 598coronae 150 AC-Assist Old-Timer enlarged 150% opens 7210 uses 40-size 4-strokel 30-size 2-stroke$ 950 cjNo 603Sparrow Hawk P-30 FF Competition robber-power plase won 97 Nuts Spans 30 in$ 225 No 626Sweepee AC Sport/Paltem canards forward-swept wing spons 64 in. uses 40 power 2 plan sheet SI$ 1300 No 626Prime cue AC Sport/Aembatic plane spans 99 in. sans Quadra 35140-size power Two plan sheetsS 1390 --No 630OrigInal Fly Baby AC Old-Timer spans 72 in. uses 19125 2-cycle 49 4-cycle power 12 plan sheetsl$ 1150 0CNo 644Bellanca columbIa AC Schoolyard Scale 2 AC channels hA engioe Wingspan 46 ur$ 575 No 646Winter Hawk FF Rubber-power Coupe dI-liver compotfilan plane spano 47 inS 375 CO anNo 65047/60 RC Special AC Aerobatic sport plane 49 power spans 61 3 plan sheets$ 1975 05 0 No 602Der Pledermauw AC Low-wing sport plane 20/25 power spons 55 in$ 675 o -No 6541amecat AC Trainer/sportoter styled like F14 spans 66 49/61 power Four plan sheets$ 1525 .No 667Super Squire AC Troiner 35/40 2-stroke 53 4-stroke power spans 56/a in$ 759 0 0No 659Boom Box FF Wakefield Robber compettion plane spans 54 in$ 490 0No 601Embry-Omatic FF Embryo Endurasce mbber-power plane spans 20 inS 290 No 663Pee Patch AC Sportster spans 69 uses 49150 4-stroke power 2 plan sheets$ 990 E 0No 664Stuka Stunt CL Stutter semiscale spans 37/a inS 590 No 605conacierittous Oblector FF Moloihill Rubber competition pfane spots 59 flat$ 575 503 66 s AC Sportoter spans 49 uses hot 29132 power 12 plan sheets 75 No 607AT-6 CL Semiocale profile StonIer 35/40 power spans 47 inS 575 6 ENo 609Roto Raven AC Sailplane unique twist-wing control Spons 76-ie Requires elevon nasing$ 650 z CUNo 671cessna cardInal FF Reminder Scale sport flier power spans 39-isS 575 INo 672Krackerjac AC updated version pioneer sport plane spans 74-in two plan sheetsS 1375 No 674 Krumpier AC 975-powered Electric semi-scale bi-winger spoan $ 575 oS 225 No 675BOF-1 FF twin-tailed sport filer Coo 02 Pee Wee engine spans 25-in No 676HIlIner AC twin-electric high-wing Sport ship denigned H6ine lmp-39 motor Has tricycle gear spans 40in.$ 406 -C-No 677ThunderbIrd CL Stutter 29-35 power Two plan sheets drawn original 1982 Veca Spans 54 in$ 975 eNo 676Sean Box FF Woof Coast Bostonian Outdoor design Spono 10//a in$ 159 -o 05oNo 679BIg Blngot Large AC Sportster sporo 95 120-24 power Two plan sheets$ 1790 SNo 6011969 Beds BD-4 FF Rubber Scale modni spans 18 in$ 325 No 682B T VIntage Trainer AC Reminder-Scala Sportster 20-size engises Spans 47% Two plan sheets$ 1156 No 684Staggerwlng Beech 3-Channel RC Schoolyard-Scale to-wieg Sportsler 049 power Spans 32-in$ 375 50lbNo 685Akro-Bat CL Stunner high-performance 049 engines Spons 32-in$ 230 E bNo 686Fotler AC Pattens-typa sport plane 2- 4-cycle power Spans 65-in$ 725 0 688 alth GlIder PP robberband-launched toam/baise Canard Catapufi/Steath Obder combo Spaes 9-in 60 No 689Thomas Morse Scout 54C AC 4-scale biplane 90 power Spaos 63-in 3 plaa oheets$ 1975 IDNo 690p-62B TwIn Muateng CL Profile Sportoter twin MVVS 25 diesels Spans 48-in 2 plari sheets$ 1050 C 0No 6911927 NL2 FF Scale model Polish bomehoifi tar 8-8 watt motor mkber 902 Spans 29-re$ 225 0No 6923 Meter Scooter AC High Performonce Sailplane Spons 118-in 2 plan sheets$ 1159 693csrdlnal classic CL Sport Stunter 35 power Spuos 50-in$ 575 CNo 694AIrmaster AC Canard Sportoter lnr two 40 push-pull engines ar 60 pusher tractor Spans 66-in 2 plan sheets 5 1475 -0No 695Spirit St Louis CL Scale replica far 1525 power Spans 46-in$ 575 0No 696Pole cat FF P-30 Class AMA Senior record holder Spans 31-in $ 225 No 697Tlgerkltten 8 AC High-performance Sport Aembatic design 05/15 Coba9 electric power Spans 54-in 0one plan sheet plus two-page inotrocton booklet$ 1990 -~No 696NovaClone CL One-denigo malti-enent Sport filer 35 power Spans 42-rn$ 490 No 699 Top cat 90L-1 FF Robber PAl Indoor Stick Gliderhot der AMA Cat PlO & Stich Naimnal Records Spans 13125-in oTwo plan sheets$ 390 o 700 Randys DIme AC economical versatile Sport Trainer ideal 10 power Weigirs 33-az spans 50-in$ 575 0 115 No 701 Jumpln Gso AC high-performance Sportster designed fun fly events Weighs 3-9 spans 48-la 40-45 power $ 725 No 702 Nelnkel NE 18 PP Scale model 1924 German monoplane Hiline Mlei-6 geared elecfdc motor Spans 28-in 290 005~ v32][b-1-10-1-10]] C5 rcle numbers plans wish order best handling please include re- quests payment some other service plans order i 3262310314326332386447 460539578581588598603626 00 ua O628630644646650652654657 cs coo659661663664665666667669 ZZO671672674675676677678679 E681682684685686688689690 691692693694695696697698 0 qPlan 699700701702703704705 • price includes first class postage US delivery Air Mail over 300 miles Far orders nan-US address e add $258 far AIr Mall asia sand handlln Ian check money order payable US funds drawn US bank Model Aviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery 0 Please print carefullyEnclosed $ NAME_________________________ AMA No _________ _ ET CITY LTATh ZIP________ Plans orders must received AMA no later December 1 Model Aviation Christmas delivery again set best buy ACPs address Box 16621 Irvine CA 92714 Phone 714/250-1107 CSTs Gail Gewain sent Mighty Mini Vac set try must say after using bag wood veneer skins Thermal Eagle wings Im completely sold Just plug let humm away Being belt suspenders type took vacuum gauge off other pump make sure Mini-Vac pulling okay finger over hose indeed pulled six inches mercury connected bag must have pinhole leak because reading stayed bit under five inches good enough though As long bagging few other items worth mentioning CST has 35 ounce unidirectional carbon fiber fabric comes 10 inches wide sells $1200 per lineal yard beautifully thin 5 thousandths thick material perfect wings layer two lightweight glass top George Span Aerospace just introduced reusable Quick-Seal clips used seal ends vacuum bag tubes consist 743 inch solid plastic rod fits snugly inside fairly rigid Ushaped plastic channel 20 inches long just place bag over channel push rod channel thus forming easy doand undoseal $350 Another new item George pair pumps E-Z Lam preset dispense ounce per stroke part resin e per stroke part B hardener will blessing baggers dont have precision scale weighing epoxy New League Silent Flight Address LSF President Bob Steele communicated LSF now has new permanent mailing address 10173 St Joe Road Ft Wayne IN 46835 old Winfield IL PO box wrn continue forward mail year until August 1992 Bob says mail turnaround time will back 7 14 days used Members may phone Bob 219/485-1145 Mankato Model Soaring Society newly formed club North Mankato Minnesota Bob Botha driving force says has permission use nice 40-acre sod farm flying field Interested sailplaners electrics welcome too area should call Bob 507/345-1832 evenings weekends Southwest Winter Soaring Contest will again sponsored Central Arizona Soaring League held Phoenix February 1 2 will two one-day contests flying modified Triathalon precision duration tasks Sounds like good place schedule winter break info write Chuck Wehofer PO Box 2472 Chandler AZ 852gEli
Edition: Model Aviation - 1991/12
Page Numbers: 48, 49, 183, 184, 185, 186, 188, 190, 192
THE MODI 900 Greco Technologies Youre probably asking Whats Modi 900 what Greco Technologies honest can pass about either time material gleaned press release phone conversation gliders principal designer Greg Chun Greg works Greco Engineering division Greco Technologies told company new model manufacturing wants enter business adjunct engineering consulting work rendering shows attractive Modi Its specifications modem up-to-date thats about know Greg said have gone through three design versions examples final design about late August placed hands experienced fliers evaluation Entering model glider market especially high end isnt simple proposition Before offering glider sale design must thoroughly tested Construction details must proven workmanship shown high quality Most important gliders performance should compare well competition time read Greg says Modi will flying Southern California contest circuit should reporting real life results soon Until would seem best treat following press release news item heres Readers Digest version Greco press release Greco Technologies excited announce arrival Modi 900 open-class competition sailplane has 50-inch fiberglass Kevlar fuselage RG15 triple-taper-cut wings made out extruded blue foam glass lots uniweb carbon fiber cloth development unique sailplane undertaken Greco engineering technical consulting firm Pasadena its staff aerospace engineers sailplane enthusiasts allowed insight both technical aspects aerodynamics wants needs hobbyist Modi 900 now off drawing board production available public Modi 900 sets itself apart competition its strength durability layer plane designed built strength versus weight considerations mind wings start PRB blue foam base overlaid full layer top bottom 45 oz carbon fiber cloth plus second layer cloth top 10 inches bottom 15 inches root wing strength encased 14 oz fiberglass 48 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Dan Troxell Laguna Hills CA bought fuselage Trom Holana Kern Germany made own wings half-scale Grobe 103 Aero two-place glider will featured January Artists rendering beautiful Modi 900 Greco Technologies ship will come largely pre-built ARF Designed thermal multitask competition has 1 1Oin wingspan 903 sqln weight 70 80 ounces Chris Aho left holds dad craigs protoiype RnInum y uuuuIu De signs Anthem updated improved Lovesong Right winners 1991 Southwest contest Phoenix L-R front Ian Dou glas John Mangino beck Steve George Ed Holder both Leg ends Jim McCarthy Comet 89T 1992 Southwest Feb ruary will bigger belier yet cloth laminating epoxy root ribs sub ribs 14-in plywood laminated strips carbon fiber ensure endurance wing joiner rod -in carbon fiber rod encased brass tube giving tensile strength steel fraction weight Aluminum shaft hinges flaps ailerons included ensure rigidity under high pressures fuselage constructed Kevlar fiberglass Under testing Modi 900s wings withstood pressures approximately 375 foot pounds before delamination Other vital statistics include Span 110 wing 50-in fuse wing area 9026 sq weight 70-79 oz wing loading 110 oz/sq ft aspect ratio 1311 airfoils RG15 wing 5D8020 stabilizer kit comes two forms pre bagged Almost-Ready-to-Fly pre bagged kit comes wings rough stage just out bag kit takes 30 80 hours complete retails $595 ARF kit comes hardware installed finished wings takes 10 15 hours complete radio installation retails $895 information catalog contact Greco Technologies PO Box Anthem Dodgson Designs new name pedigree going back 1972 Bob Dodgson began manufacturing aileron glider kits Bob introduced 134-inch-span Windsong 1982 few years ago strengthened structure cope modern exuberant flying styles renamed Lovesong Songs have probably popular thermal competition ships during period Continued page 183 December 1991 49 10 South Pasadena CA 91031 call 1800-34-GRECO Ext 23 Feather Cut hot wire foam Cutter gives builders easy-to-do Pro quality results small low-cost vacuum pumps answer bag gers prayers Mighty Mini-Vac R Composite Structures Technology Nylon bag material breather felt sealant part system whole thing available CST $7495 Mid-Columbia/Blakeslee Continued page 179 heard planes touch Yeah glad Rich such smooth flier didnt flinch RC Soaring/Blakeslee Continued page 49 around country Bob says hes sold several thousand kits Now Bob has updated Song design based experience latest kit Saber Basically Anthem Song 5D7037 airfoil obechi sheeting flying surfaces aileron flap servos wings 48-inch bullet proof wing spar %-in joiner rod Bob says newsletter Second Wind prefer larger glider scale-like profile easy see great distances want added L/D long span high aspect ratio wing nothing available can match Anthem limited time will continue offer Lovesong have computer radio prefer slower flying yet high-performance tripped Eppler 214 airfoil sure get Lovesong theyre still production suggest wait gone AVIATION CHfISTMAS GIFTS SALE r VALUABLE COUPON ngall paper CORSAIR Procut/colored W/MOTOR $4 2 for- $6 ___ ~Precolored GIFT glder-sI ers & envelopes j2 $3 24 $5j CATALOG 1 3000 planes $18______ w/lst order- over PAPEII AIRPLANE club $1500$251 PAPER AIRPLANES II 433 NIHOA STREET KAHULUI HI 96732 USA ISeI uVoo will gone Prices Anthem Base kit $279 kit pre-built spars $345 kit pre-sheeted wings stabs rudder limited availabilitycheck before ordering $430 add $12 UPS shipping kits Write Dodgson Designs 21230 Damson Road Bothell WA 98021 Phone 206/776-8067 Monday-Friday 10 am 5 pm Pacific time Bobs Second Wind newsletter good way keep touch whats happening Dodgson Designs About 700 customers subscribe Two issues per year spring fall published cost modest $200 $300 Canadians An Anthem builder Craig Aho Mountlake Terrace near Seattle Craig called sing Anthems praises kind enough send photo letter picture Anthem promised son Chris holding Sorry poor quality photo Anthem fantastic flier using 5D7037 airfoil new spar system roll rate impressive speed range wide good top end aircraft still has best light lift qualitiesas did its predecessor Lovesong Ive hung up Falcon 880 now Ive got aircraft built prototype 60 hours dee 6rckoo/ Learn fly ottr planes private field Five Dr 6 day course $350 Open year round Send SASE Complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 scratch built wood parts builds fast large enough see easily has classic Song look Bob now offering new option Anthem Saber completely pre-sheeted flying surfaces additional $150 ATRCS Version 30 u p-grade brought guys Control Systems Laboratories Gene Englegau Tom Mroz Youll recall introduced ATRCS conversion Airtronics Module transmitter summer 1988 Shortly thereafter Airtronics contracted CSL provide similar hardware software very popular Vision transmitter CSLs latest announcement Now new improved software revision plus improved components can installed December 1991 183 ~IEKINO STEPPING INTO THE FUTURE OF R/C THE NEWEST IN ELECTRIC FUGHT PRODUCTS Units Feature Surface Mount Technology Light Weight Ultra-Slim Advanced Linear Design Low Current Draw lOMA High Power MOSFET Design 118 Cells 24 Volts 40 size motors Electronic Speed Controller ESC Electronic throw ad pat pend ESC 100120 amp coot 300 amp surge$5995 Electronic Switch ESW Fully adi reversihle point indicator ESW 23030 amp coot 75 amp surge$2995 ESW 26060 amp coot 150 amp surge$3995 ESW212O120 amp coot 300 amp surgeS5995 Please specify receiver coon ordering prod ucts Guaranteen 6 months trom purchase dote Call write details TREK IND regon Ave ord NY 11763 516 758-8170 LIGHTING SYSTEMS THE ORIGINALS. Still Best *RED 01Programmable Flashing Navigation Lights 9V$2495 #RED 02Strobe Light Ad] Rate 9V$1995 *RED 03Landing Lights 48V$3995 *RED 04Mars Rotating Beacon Ad] Rate 9 V$1995 #RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 #RED 23Real Strobe Light true zenon strobe 3V$2995 S SEE YOUR DEALER 0 SEND STAMPED ENVELOPE FOR RAM INFO unavaIlable locally send check money order full credit card info coat Item plus $400 $5 00 foreign immediate shipment Include full addresa U PS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 Near AiRES MOLLS METALS 500KS PRECOS5ON INSTRUMENTS ~COMPLETE COTOLOC $200 TDDLS CD C4M1U RoO OTs items sPr~iB2555ssss * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No 202 Air Cleaner Fine *275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc po Box3786 Cones Mchganaole Add $250 sh pp op M ch gao ea dents add 4% ua eu taxI 11376 Ridgeway RoadKensington OH 44427216 223-1950 DrtObatiC span $17995 span -$18995 Sportobatirs M 84span92span-S1to 84 Sportobatics 10 lbs ideal 90 2C 120 4C engines 92 versions 13 lbs perfect ST2000-3000 equivalent engines Both versions build quickly lite-ply & balsa fuselage & tail & foam wing Sportobatics fill need hotdog show-off sport planes Knife-edge takeoffs flat spins snap rolls rtobatics will anything can yet land like strainer Super Canopy Ohio CS-equipped 5P7 Vision 85P transmitters up-grade consists following features ATRCS 5P7 Module Transmitters Replaces Micro-processor improved versionallowing larger sophisticated programs Replaces setup memory chips larger capacity setdoubles setup memory 8 setups Up-grades ATRCS transmitters include new featuresAdds PCM fail safeAdds aircraft naming setup Vision 85P Transmitters above plus additional receiver capabilityFutaba FM-PPM 4-8 channels Both Vision 75P ATRCS transmitters will work RCD FM-PPM 4-8 channel receivers JR FM-PPM 4-8 channel receivers past would have write down setup information since $25995 Giant 99 x 16 Vinyl Clad Nylon Yellow Blue White Two-Color Combinations 8 rugged tube frame 10 easy-out stesi tent stakes nylon guy cords Folds neat hesvy-duty cardboard box goes up quickly complete instructions Optional name city state printed ends $6000 replacing setup memory Now due improvements methods no longer have will automatically save setup information generate paper hard copy restore setups new memory chips hard copy will sent back along transmitter records price version 30 up-grade just $9500 plus $400 UPS ground $1000 UPS blue shipping CA residents need add local sales tax Payment check money order Visa Mastercard Send ATRCS transmitter less antenna battery Control Systems Labs 238 So Hillview Dr Milpitas CA 95035 Phone 408/946-4142 Feather Cut Hot Wire Foam Wing Machine new foam wing cutter produced Tekoa Center Design company better known us LA area father/son team Roger Blayne Chastain As read last month Terry Edmonds Nationals report Blayne Senior age group flier placed first both Standard Unlimited class fact Unlimited class beat Open age winner Brian Agnew point Roger called back asked Id like try machine said betI want cut some cores anyway Roger thought Id suitable test subject because have never cut cores before course Ive seen done Julian Tamezs Channel Productions foam cutting video person other occasions Ive always built kits never cut own cores machine arrived very sturdy 55inch-long mailing tube small parts neatly individually packaged long poly bag whole thing went together about hour Its mainly just matter following easy instructions looking diagrams threading screws nuts together two main parts machine made blue anodized extruded aluminum right off bat know Roger has put lot effort project larger extrusion called body 51 inches long designed mounted edge work bench held place tape easy removal taped edge 24-inch-wide hollow core door sets table As can see photo mounted body two horizontal two vertical rollers four rollers can slide back forth tracks fixed place wing nuts rollers adjust machine 184 Model Aviation OHIO SUPERSTAR PRODUCTS INC ADAPTOR THROW-A-WAY YOUR COLiETS CHUCK & WRENCH USE OUR 0 TO jCHUCK DREMEL POWER TOOLS RUNS 100% TRUE & ONCENTRIC AT FULL RPM NO 501 ADAPTOR ESS cHUCK $1895 IDREMEL 850395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POUSHED STEEL USED FOR CUTTING PLASTIC WOOD SOFT METALS LEXAN PLEXIGLASS & ETC AVAILABLE IN 006 008 010 012 014 016 018020023 025 V028 032ThICKNESS NO 502ARBOR$800 OUR IDE DIAMETER @ $675 EA NO 503 014 X 114 SAW $800 SAWS ONLY WORK WITH OUR ARBOR MICRO SELFsTARTING TORCH No need Ifint matches Just press Piezo Self-Starting button -for micro size adjustable flame barns 237h up 3 hours Operates standard cigarette -hghter butane refiflabfe Tank fits comfortably palm hand made high-impact rubber allows safe non slip comfortable grip Sapplied can butane MT770 Blow Torctt $3500 ne butane MT771 Butane 5 oz0600 EASTERN TOOL& SUPPLY CO I49GRANDST -NYC NY 10013 WRITE FOR CATALOG$300 ORDERS 212-925-1006 WHEN ORDERING- PPD ADO $300 OFFICE 212-226-3749 CODADO$500FAX212-925-1010 cut cores up 50 inches long almost width taper rollers guide two very flexible 22 gauge power wires connect hot cutting wire alligator clips other ends wires connect low voltage power source power wires serve heat cutting wire also pull hot wire through foam block smaller extrusion called control arm 48 inches long pivoted left end body has two purposes compensate difference two power wires travel cutting tapered cores provide pull power wires Tapered cores tricky because cores root 10 inches tip nine inches power wire root travels pull length inch exactlyexplained below the tip control arm has graduated scale its face reads zero 100 use set cuts taper ratio ie tip/root pull lengths root end power wire always attached 100 tip wire attached number calculated pull power wires control arm carries 16-ounce lead weight mounted near middle gravity provides motive force hot wire mounted bow 27-inch length 3A inch x 2 inch wood 10-inch-long diameter music wire legs end wrap 18 thousandths T-370 cutting wire around leg bend legs together specified distance wrap around other leg bend legs provides proper tension wire Roger says cutting wire special neither ni-chrome nor stainless steel leader wire standard bow will cut cores up about 26 inches long might think kinda short designers going Schuemann planform type wing has multiple breaks leading edge need two three sections core per wing panel Since foam comes 24-inch-wide pieces its easy economical design two-foot sections can make own longer bow picking up piece wood local lumber yard Roger will soon coming out new aluminum bows 28 40 52 inches long will have feature being foldable legs thus saving storage space Lets now quickly review three ways can cut cores hand gravity electric motor drive Guiding bow hand straightforward method However get good consistent cores youand perhaps helper other endneed practice steady nerves make constant speed cuts Electric motor powered cutters can quite sophisticated require lot rigging gears belts such important take experienced operator correctly regulate both December 1991 185 Funniest Amateur Video Ever R/C FOLLIES PRESENTS CraziestWackiest Funniest Model Airplane Wrecks Youll Ever See! Over 30 Minutes CRASH after CRASH after CRASH Flying off lake smashing ice What happens hand launch forget turn radio plane seaplane turn treeplane Rocket engine mounted Eindecker Four wrecked planes turned Twin flew just lot Bad flying much Dont miss one-of-a-kind exciting funny video offer youll ever see $1 995 plus $3 shipping handling HOLLAND SOUND SERVICES 1 Dunham Dr Dunmore PA 18512 phone 717-346-8742 VISA-MASTERCARD PA Orders add 6% sales tax speed cut heat wire Otherwise foam will burn excessively too hot/slow wire will drag too much too cold/fast As mentioned above Feather Cut machine gravity type cutter Its beauty simplicity set heat cutting proceeds automatically its own pacea feature well suited new users As said Im new game myself Feather Cut machine has couple novel features appear make work better other designs Ive seen feature sliding lead weights legs bow cutting airfoils bottom profile slide weights toward hot wire wire maintains good contact templates going downhill cutting top profile slide weights back wire has less downforce templates going uphill second related feature bow works horizontal position small tailwheel middle wood part bow allows roll across work surface during cutting old method operate bow vertically suspended springs rubber bands course another potential source adjustment error hardest part cutting foam cores making templates instructions Roger recommends second motion S Discover SECRET TO HASSLE-FREE CHARGING Dont miss perfect day because uncharged batteries amazingly simple AUTO-TRICKLE ADAPTER converts ALL overnight chargers FULLY AUTOMATIC TRICKLE CHARGERS Nothing else like Simply plug wall plug overnight chargers push button forget about batteries whole fleet will ready next day week month year Nothing solder connectors buy 100% solid slate device safely reduces chargers output pulse trickle after 16 hours Directly supports 1 3 chargers However powerful 120 Watt capacity easily HANDLES UP TO 30 CHARGERS Nothing else comes close convenience simplicity safety cost effectiveness T I1 E Hurry secret out Get AUTO-TRICKLE ADAPTER TODAY YOUR LOCAL HOBBY DEALER send $3995 5&H Directly Tejera Microsystems Engineering Inc 800 729-9210 PO nox 340608 Tampa Florida 33694 ADVANCED AERO PRODUCTS VS & Os SIMPASS 120 EXI4A5BT SYSTEMSrii 55 50155 toO sFoOUATO4 5555 HWnE5 W5 PATTERN MR5FT AND WINATS 551 ODvANCeD ASRO poosacos OTT 505 25-C 5450 T5 75553 554 954-3945 using Chuck Andersons Airfoil Plot Program draw full size airfoil profiles computer printer Chucks program $25 Address Box 305 Tullahoma TN 37388 Phone 615/4555788 glue printed airfoil plots horizontal grade Formica horizontal thicker vertical grade 3M No 77 spray adhesive cut out jig saw accurately sand polish surface hot wire rides Note need two paper plots per wing section because airfoils template made two parts matching pairs pairs cutting airfoils bottom profile other top type template must used Feather Cut machine because always cuts top surface template early days foam cutting templates same wing rib used two-piece templates have proven better kind core cutting because register work surface unwanted twists wont introduced sketches below show typical pair templates SD 8020 stabilizer section dashed lines indicate actual section chord spaces before after actual chord hot wire lead-in lead-out ffp7j.4t1 #A 3orT-l cur rIPiPLAT 4A r GuP operation pin sharpened pop rivets work fine bottom templates leading edge always cut first ends foam block must first pre-cut cores planform hand using hot wire bow using Formica triangles Continued page 188 186 Model Aviation Model ATAcxl works existing NiCd overnight C/10 chargers Yes works cordless power tools toys individual cell chargers ste THE WIREMASTER TM ndcrfcoler 4 different models wire bending tools offet Also available Alloy Stainless Aluminum Melric hardware Checkyour dealet first un available send business size SASE free catalog JCM COMPANY 114 washington Torr Dopt Waukogan IL 60085 Efficient wide tips thinner airfoil sections combine greater thrust noise suppresion Will out-perform wood & other plastics water sand & gravel runways Made strong 33% glass-filled nylon RPM rating 160K divided diameter inches 1/2A Series 55x4 55x45 6x35 6x3 6x4$ 99 GIF Series 7x4 7x6125 8x4 8x6135 9x4 9x5 9x6 9x8 95x6155 10x6 10x7 10x8.. 175 11x6 11x7 11x75 11x9195 K Series 12x6 12x8 285 13x6 13x8 385 14x6 14x8 495 15x8 15x10 545 665 16x6 16x8 Antique Series 10x5 11x6 12x6 13x6 14x7 16x7 225 245 335 435 545 715 See local hobby dealer Master Airserew propellers accessories Windsor Propeller Co 3219 Monier Circle Rancho Cordova CA 95742 57-6 AL guides Make sure templates resting squarely against perfectly flat work surface foam well weighted down make bottom cut replace bottom templates top ones top cut template pairs must have exactly matching pin holes replace bottom template top same holes foam used otherwise cuts will off Because bottom cut first core settles its bottom bed need compensate templates width wire-cut minimized hot wire cuts core about 10 thousandths undersize vacuum bag cores glass/carbon fiber undersize about right allow skin thickness Once templates made found using Feather Cutter piece cake Im type person Murphy mind because can usually find some way screw up time try something new machine worked beautifully right out box encountered no problems making perfect looking cores say highly unusual Just get everything set hot wire resting templates four rollers adjusted power wires attached hot wire control arm turn power supplyand away goes foam makes very satisfying sizzling noise hot wire slices through about inch per minute need sit watch go catching bow wire comes out trailing edge can use low voltage up 28 volts power supply like Variac adjustable transformer opted get Rogers Thermal Generator because no-fuss operation unit makes perfect companion Feather Cutter Roger says has fool-proof wire temperature control certainly found true simply adjust knob center dial needle Thermal Generator senses resistance whatever length wire using automatically supplies proper amount power heat wire about 2122250 Simplicity itselfl & MODEL BUILDING 7SERVICE RADIO CONTROL PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 wATcI4oGuE ROAD 8 SEAIEN SAM 8 NY 10314 As foam Roger recommends using Dow PRB Plaster Ready Board blue material same blue Dow Square Edge insulating foam PRB has density two pounds per cubic foot rated 25 psi has open aggressive cell structure Roger says want build killer wing consider Dow HI-l 15 High Load board rated 115 psi six lb/cu ft difficult locate though Finally lets get back tapered core paradox wing root 10 inches tip nine inches youd think taper ratio set control arm would 900 no standard procedure Continued page 190 0 0 0 0 j 0 0 0 0 Ousrlerffiaster Sport lips 73 Span 035 similar $21 build FUNK 385-C$25i~ 1/4 scale 108' Span 12 four stroke scale 84 Span 61 four otroke$21 o photo reduced igaS KINNER SPORTITER K 4 scale 117 Span 035 S cylinder $25 ylinder radial scale 76 Span 61 four stroke $1 o reduced DAVIS 01K scale 905 Span 035 5 cylinder radialp~pPs r/6 scale 603 Span 45 four stroke$1 500 photo reduced STITS PLAYHOY$25I /a scale 88 opus 035 larger 188 Model Aviation Leader Small Airfoil Technology MASIE 11 AHISCREW TAYLOFICRAFT q in 12 $250 61 DGAO Piano O0riOgl PHOTO DOCUMENTATION PACKS uvu"- nrr Scule Piano Alt PLANS NOLLE5 OOIPPFS P5 C cdli Insirocion Sonidet e.money Order COOs clip power wires hot wire inch either end foam block root end power wire actually travels little 10 inches tip end wire travels little less nine inches determine actual lengths travel easiest way place pre shaped foam block piece paper project end inch straight edge pencil measure projected ends Feather Cut machine sells $13950 plus $850 S&H Thermal Generator $9450 plus $450 S&H Both may ordered Tekoa Center Design 3219 Canyon Lake Drive Hollywood CA 90068 Phone/Fax 213/469-5584 New Low-Cost Vacuum Pumps piece April column about making vacuum pump refrigerator compressor generated lot interest knowing what now wouldnt have bothered making Both Composite Structures Technology Aerospace Composite Products WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries fh chargers need pacd6aget wet Cell & Cycler-Chargec *23996 Fits 48V RX 96V Tx p00ll5Plus $750 S&HaGeGelled Cell Others available write calle erieS Regular Model. 96 field kit sinaiPlus $500 P&H electriC boat batteriesSpecify 612 24V 8qnL Canton II spoil winch large boat andPlan $600 P&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssE Ion OlloineailooPO Box 221 605ga-5g24126316V Bill Eff get * says Only Piano Pattetott Sets give anvorted designs want have selected best classic designs time foe pvc choose tcer patterns tot part ate impottast eaclusice feature Curtiss HAWK PlC 9400 wingspan68 length 2268 sq snieg aeon Fnr 13 23 ClO engines 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FOrt3102301 0 pogroac weOe Oppor rOiOsliessnCIOO wirgepan 4 COnnoni nic g Overall Leogro itied Scale Liar eanom OrtOii 2072 sy wing grea a Wirg Panels OuatOt Scala 1/3 Scale MONOCOUPE NA Wingspan 92 Onerall Length - 2100 sq Wing Area Fnr 29 en 38 CID hegines RC3S-4 Bill Ellinget Foonding Mewbnt AMA NFF5 Hall nt Fewer Pricee tor complete plans sub asnemclv S detailed parts hOts PLEASE ADD g3gO shipping wailing tobsl sew 1991 Plan Seer OrvOhere Irafriodasle ovar firel orderli WE TECHNICAL SERVICES RO Box 420144-S Atlanta GA 30342 190 Model Aviation No NITRo Runs 5% Gets about 1 minute ounce fuel OPS MAxI 30 18 Statically dynamically balanced 5 intake ports shaft induction roller ball bearings long stroke pump carb readily available parts l8x8TopfightM.8l85rPm 20 x 6 Zinger8036 rpm 24 x 8 Zinger 30 rpm stock VS parts 54sPeoPleof now selling low cost continuous-run littlebreather strip T-fitting just $5 RC Soaring/Blakesleepumps work great onlymore set obviously way go Continued page 188drawback its too serious thatCST has convenient toll free order pull maximum six inches ofnumber l-800-338-lCST Aerospaces mercury Six inches shouldpump called E-Z Vac goes E-Z use white foam anyway whenLam ACPs excellent epoxy laminating using blue foam cores much vacuumresin sells $6500 itself probably adequate work$7500 both plus $400 S&H set CST calls pump Mighty Mini-similar CSTs ACP set also Vac sells $6995 itself andincludes very neat hose fitting $7495 both plus $600 S&H set asattaches flat surface bag plus shown photo includes threetwo Quick-Seal clips below yards nylon bagging tube sealant ntinued page 192 opper iant Semi-Scale Sportster reminiscent 1930s Heath midwing homebuilt Spans 85-in 90 power 2 plan sheets No 704 Arrow$500 CL Stunt Wing inspired 1960s-vintage Bill Netzeband designs new PAW 049 diesel engine Spans 298-in No 705 Zenith$200 FF Hand Launch Glider serious competition Wing DT spans 18-in 35-38-gr $375 No 193Selleito CL Stunt model lMcDonaIdl winner 1976 1999 1982 FAI World Champs$ No 262crashmaster CL crash-proof trainer two sizes15/30 35/40 power No 3101930 Ftet Biplane AC Sport Scale 35/40 4-channel Wingspan 56-in 4-scale Two plan sheets$625 Mo 314Drake II AC Ken Willards flying boat 3channel 15 power Fly land wofi removable gearS375 No 326Taylor cub AC Don Sinus Schoolyard-Scale tar 049 power 2-3 channel Spans 50-inS359 No 332Zephyr AC small 2-channel Glider hand-launch tow thermal slope soanog$290 No 368LaSer 200 AC Sport Scale replica championOhip Aerobatic flier 40 power 4-5 chanoel Two plan sheets$1075 No 447twA MIsS America AC Old Timer Texaco model 049 910w 2 chaneels$650 No 4604-40 AC shoolder-wiog Sport flier 4-cycle 40 power 4 channels$650 No 539Simltar slow-MotIon 15 AC Tailless flying wing 15 engines spans 60 ones 3-cb AC$359 No 578Schweizer 1-260 AC Quarter-scale Sailplane spans 125 Two plan sheets$1475 6No 581Gee Bee Model Y AC Golden Age Racer spano 72 scale 60 power Three plan sheets$ 1175 0No 588Marish AC Slope-Soaring Sailplane spans 41 uses 2 AC channels$ 425 No 598coronae 150 AC-Assist Old-Timer enlarged 150% opens 7210 uses 40-size 4-strokel 30-size 2-stroke$ 950 cjNo 603Sparrow Hawk P-30 FF Competition robber-power plase won 97 Nuts Spans 30 in$ 225 No 626Sweepee AC Sport/Paltem canards forward-swept wing spons 64 in. uses 40 power 2 plan sheet SI$ 1300 No 626Prime cue AC Sport/Aembatic plane spans 99 in. sans Quadra 35140-size power Two plan sheetsS 1390 --No 630OrigInal Fly Baby AC Old-Timer spans 72 in. uses 19125 2-cycle 49 4-cycle power 12 plan sheetsl$ 1150 0CNo 644Bellanca columbIa AC Schoolyard Scale 2 AC channels hA engioe Wingspan 46 ur$ 575 No 646Winter Hawk FF Rubber-power Coupe dI-liver compotfilan plane spano 47 inS 375 CO anNo 65047/60 RC Special AC Aerobatic sport plane 49 power spans 61 3 plan sheets$ 1975 05 0 No 602Der Pledermauw AC Low-wing sport plane 20/25 power spons 55 in$ 675 o -No 6541amecat AC Trainer/sportoter styled like F14 spans 66 49/61 power Four plan sheets$ 1525 .No 667Super Squire AC Troiner 35/40 2-stroke 53 4-stroke power spans 56/a in$ 759 0 0No 659Boom Box FF Wakefield Robber compettion plane spans 54 in$ 490 0No 601Embry-Omatic FF Embryo Endurasce mbber-power plane spans 20 inS 290 No 663Pee Patch AC Sportster spans 69 uses 49150 4-stroke power 2 plan sheets$ 990 E 0No 664Stuka Stunt CL Stutter semiscale spans 37/a inS 590 No 605conacierittous Oblector FF Moloihill Rubber competition pfane spots 59 flat$ 575 503 66 s AC Sportoter spans 49 uses hot 29132 power 12 plan sheets 75 No 607AT-6 CL Semiocale profile StonIer 35/40 power spans 47 inS 575 6 ENo 609Roto Raven AC Sailplane unique twist-wing control Spons 76-ie Requires elevon nasing$ 650 z CUNo 671cessna cardInal FF Reminder Scale sport flier power spans 39-isS 575 INo 672Krackerjac AC updated version pioneer sport plane spans 74-in two plan sheetsS 1375 No 674 Krumpier AC 975-powered Electric semi-scale bi-winger spoan $ 575 oS 225 No 675BOF-1 FF twin-tailed sport filer Coo 02 Pee Wee engine spans 25-in No 676HIlIner AC twin-electric high-wing Sport ship denigned H6ine lmp-39 motor Has tricycle gear spans 40in.$ 406 -C-No 677ThunderbIrd CL Stutter 29-35 power Two plan sheets drawn original 1982 Veca Spans 54 in$ 975 eNo 676Sean Box FF Woof Coast Bostonian Outdoor design Spono 10//a in$ 159 -o 05oNo 679BIg Blngot Large AC Sportster sporo 95 120-24 power Two plan sheets$ 1790 SNo 6011969 Beds BD-4 FF Rubber Scale modni spans 18 in$ 325 No 682B T VIntage Trainer AC Reminder-Scala Sportster 20-size engises Spans 47% Two plan sheets$ 1156 No 684Staggerwlng Beech 3-Channel RC Schoolyard-Scale to-wieg Sportsler 049 power Spans 32-in$ 375 50lbNo 685Akro-Bat CL Stunner high-performance 049 engines Spons 32-in$ 230 E bNo 686Fotler AC Pattens-typa sport plane 2- 4-cycle power Spans 65-in$ 725 0 688 alth GlIder PP robberband-launched toam/baise Canard Catapufi/Steath Obder combo Spaes 9-in 60 No 689Thomas Morse Scout 54C AC 4-scale biplane 90 power Spaos 63-in 3 plaa oheets$ 1975 IDNo 690p-62B TwIn Muateng CL Profile Sportoter twin MVVS 25 diesels Spans 48-in 2 plari sheets$ 1050 C 0No 6911927 NL2 FF Scale model Polish bomehoifi tar 8-8 watt motor mkber 902 Spans 29-re$ 225 0No 6923 Meter Scooter AC High Performonce Sailplane Spons 118-in 2 plan sheets$ 1159 693csrdlnal classic CL Sport Stunter 35 power Spuos 50-in$ 575 CNo 694AIrmaster AC Canard Sportoter lnr two 40 push-pull engines ar 60 pusher tractor Spans 66-in 2 plan sheets 5 1475 -0No 695Spirit St Louis CL Scale replica far 1525 power Spans 46-in$ 575 0No 696Pole cat FF P-30 Class AMA Senior record holder Spans 31-in $ 225 No 697Tlgerkltten 8 AC High-performance Sport Aembatic design 05/15 Coba9 electric power Spans 54-in 0one plan sheet plus two-page inotrocton booklet$ 1990 -~No 696NovaClone CL One-denigo malti-enent Sport filer 35 power Spans 42-rn$ 490 No 699 Top cat 90L-1 FF Robber PAl Indoor Stick Gliderhot der AMA Cat PlO & Stich Naimnal Records Spans 13125-in oTwo plan sheets$ 390 o 700 Randys DIme AC economical versatile Sport Trainer ideal 10 power Weigirs 33-az spans 50-in$ 575 0 115 No 701 Jumpln Gso AC high-performance Sportster designed fun fly events Weighs 3-9 spans 48-la 40-45 power $ 725 No 702 Nelnkel NE 18 PP Scale model 1924 German monoplane Hiline Mlei-6 geared elecfdc motor Spans 28-in 290 005~ v32][b-1-10-1-10]] C5 rcle numbers plans wish order best handling please include re- quests payment some other service plans order i 3262310314326332386447 460539578581588598603626 00 ua O628630644646650652654657 cs coo659661663664665666667669 ZZO671672674675676677678679 E681682684685686688689690 691692693694695696697698 0 qPlan 699700701702703704705 • price includes first class postage US delivery Air Mail over 300 miles Far orders nan-US address e add $258 far AIr Mall asia sand handlln Ian check money order payable US funds drawn US bank Model Aviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery 0 Please print carefullyEnclosed $ NAME_________________________ AMA No _________ _ ET CITY LTATh ZIP________ Plans orders must received AMA no later December 1 Model Aviation Christmas delivery again set best buy ACPs address Box 16621 Irvine CA 92714 Phone 714/250-1107 CSTs Gail Gewain sent Mighty Mini Vac set try must say after using bag wood veneer skins Thermal Eagle wings Im completely sold Just plug let humm away Being belt suspenders type took vacuum gauge off other pump make sure Mini-Vac pulling okay finger over hose indeed pulled six inches mercury connected bag must have pinhole leak because reading stayed bit under five inches good enough though As long bagging few other items worth mentioning CST has 35 ounce unidirectional carbon fiber fabric comes 10 inches wide sells $1200 per lineal yard beautifully thin 5 thousandths thick material perfect wings layer two lightweight glass top George Span Aerospace just introduced reusable Quick-Seal clips used seal ends vacuum bag tubes consist 743 inch solid plastic rod fits snugly inside fairly rigid Ushaped plastic channel 20 inches long just place bag over channel push rod channel thus forming easy doand undoseal $350 Another new item George pair pumps E-Z Lam preset dispense ounce per stroke part resin e per stroke part B hardener will blessing baggers dont have precision scale weighing epoxy New League Silent Flight Address LSF President Bob Steele communicated LSF now has new permanent mailing address 10173 St Joe Road Ft Wayne IN 46835 old Winfield IL PO box wrn continue forward mail year until August 1992 Bob says mail turnaround time will back 7 14 days used Members may phone Bob 219/485-1145 Mankato Model Soaring Society newly formed club North Mankato Minnesota Bob Botha driving force says has permission use nice 40-acre sod farm flying field Interested sailplaners electrics welcome too area should call Bob 507/345-1832 evenings weekends Southwest Winter Soaring Contest will again sponsored Central Arizona Soaring League held Phoenix February 1 2 will two one-day contests flying modified Triathalon precision duration tasks Sounds like good place schedule winter break info write Chuck Wehofer PO Box 2472 Chandler AZ 852gEli
Edition: Model Aviation - 1991/12
Page Numbers: 48, 49, 183, 184, 185, 186, 188, 190, 192
THE MODI 900 Greco Technologies Youre probably asking Whats Modi 900 what Greco Technologies honest can pass about either time material gleaned press release phone conversation gliders principal designer Greg Chun Greg works Greco Engineering division Greco Technologies told company new model manufacturing wants enter business adjunct engineering consulting work rendering shows attractive Modi Its specifications modem up-to-date thats about know Greg said have gone through three design versions examples final design about late August placed hands experienced fliers evaluation Entering model glider market especially high end isnt simple proposition Before offering glider sale design must thoroughly tested Construction details must proven workmanship shown high quality Most important gliders performance should compare well competition time read Greg says Modi will flying Southern California contest circuit should reporting real life results soon Until would seem best treat following press release news item heres Readers Digest version Greco press release Greco Technologies excited announce arrival Modi 900 open-class competition sailplane has 50-inch fiberglass Kevlar fuselage RG15 triple-taper-cut wings made out extruded blue foam glass lots uniweb carbon fiber cloth development unique sailplane undertaken Greco engineering technical consulting firm Pasadena its staff aerospace engineers sailplane enthusiasts allowed insight both technical aspects aerodynamics wants needs hobbyist Modi 900 now off drawing board production available public Modi 900 sets itself apart competition its strength durability layer plane designed built strength versus weight considerations mind wings start PRB blue foam base overlaid full layer top bottom 45 oz carbon fiber cloth plus second layer cloth top 10 inches bottom 15 inches root wing strength encased 14 oz fiberglass 48 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Dan Troxell Laguna Hills CA bought fuselage Trom Holana Kern Germany made own wings half-scale Grobe 103 Aero two-place glider will featured January Artists rendering beautiful Modi 900 Greco Technologies ship will come largely pre-built ARF Designed thermal multitask competition has 1 1Oin wingspan 903 sqln weight 70 80 ounces Chris Aho left holds dad craigs protoiype RnInum y uuuuIu De signs Anthem updated improved Lovesong Right winners 1991 Southwest contest Phoenix L-R front Ian Dou glas John Mangino beck Steve George Ed Holder both Leg ends Jim McCarthy Comet 89T 1992 Southwest Feb ruary will bigger belier yet cloth laminating epoxy root ribs sub ribs 14-in plywood laminated strips carbon fiber ensure endurance wing joiner rod -in carbon fiber rod encased brass tube giving tensile strength steel fraction weight Aluminum shaft hinges flaps ailerons included ensure rigidity under high pressures fuselage constructed Kevlar fiberglass Under testing Modi 900s wings withstood pressures approximately 375 foot pounds before delamination Other vital statistics include Span 110 wing 50-in fuse wing area 9026 sq weight 70-79 oz wing loading 110 oz/sq ft aspect ratio 1311 airfoils RG15 wing 5D8020 stabilizer kit comes two forms pre bagged Almost-Ready-to-Fly pre bagged kit comes wings rough stage just out bag kit takes 30 80 hours complete retails $595 ARF kit comes hardware installed finished wings takes 10 15 hours complete radio installation retails $895 information catalog contact Greco Technologies PO Box Anthem Dodgson Designs new name pedigree going back 1972 Bob Dodgson began manufacturing aileron glider kits Bob introduced 134-inch-span Windsong 1982 few years ago strengthened structure cope modern exuberant flying styles renamed Lovesong Songs have probably popular thermal competition ships during period Continued page 183 December 1991 49 10 South Pasadena CA 91031 call 1800-34-GRECO Ext 23 Feather Cut hot wire foam Cutter gives builders easy-to-do Pro quality results small low-cost vacuum pumps answer bag gers prayers Mighty Mini-Vac R Composite Structures Technology Nylon bag material breather felt sealant part system whole thing available CST $7495 Mid-Columbia/Blakeslee Continued page 179 heard planes touch Yeah glad Rich such smooth flier didnt flinch RC Soaring/Blakeslee Continued page 49 around country Bob says hes sold several thousand kits Now Bob has updated Song design based experience latest kit Saber Basically Anthem Song 5D7037 airfoil obechi sheeting flying surfaces aileron flap servos wings 48-inch bullet proof wing spar %-in joiner rod Bob says newsletter Second Wind prefer larger glider scale-like profile easy see great distances want added L/D long span high aspect ratio wing nothing available can match Anthem limited time will continue offer Lovesong have computer radio prefer slower flying yet high-performance tripped Eppler 214 airfoil sure get Lovesong theyre still production suggest wait gone AVIATION CHfISTMAS GIFTS SALE r VALUABLE COUPON ngall paper CORSAIR Procut/colored W/MOTOR $4 2 for- $6 ___ ~Precolored GIFT glder-sI ers & envelopes j2 $3 24 $5j CATALOG 1 3000 planes $18______ w/lst order- over PAPEII AIRPLANE club $1500$251 PAPER AIRPLANES II 433 NIHOA STREET KAHULUI HI 96732 USA ISeI uVoo will gone Prices Anthem Base kit $279 kit pre-built spars $345 kit pre-sheeted wings stabs rudder limited availabilitycheck before ordering $430 add $12 UPS shipping kits Write Dodgson Designs 21230 Damson Road Bothell WA 98021 Phone 206/776-8067 Monday-Friday 10 am 5 pm Pacific time Bobs Second Wind newsletter good way keep touch whats happening Dodgson Designs About 700 customers subscribe Two issues per year spring fall published cost modest $200 $300 Canadians An Anthem builder Craig Aho Mountlake Terrace near Seattle Craig called sing Anthems praises kind enough send photo letter picture Anthem promised son Chris holding Sorry poor quality photo Anthem fantastic flier using 5D7037 airfoil new spar system roll rate impressive speed range wide good top end aircraft still has best light lift qualitiesas did its predecessor Lovesong Ive hung up Falcon 880 now Ive got aircraft built prototype 60 hours dee 6rckoo/ Learn fly ottr planes private field Five Dr 6 day course $350 Open year round Send SASE Complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 scratch built wood parts builds fast large enough see easily has classic Song look Bob now offering new option Anthem Saber completely pre-sheeted flying surfaces additional $150 ATRCS Version 30 u p-grade brought guys Control Systems Laboratories Gene Englegau Tom Mroz Youll recall introduced ATRCS conversion Airtronics Module transmitter summer 1988 Shortly thereafter Airtronics contracted CSL provide similar hardware software very popular Vision transmitter CSLs latest announcement Now new improved software revision plus improved components can installed December 1991 183 ~IEKINO STEPPING INTO THE FUTURE OF R/C THE NEWEST IN ELECTRIC FUGHT PRODUCTS Units Feature Surface Mount Technology Light Weight Ultra-Slim Advanced Linear Design Low Current Draw lOMA High Power MOSFET Design 118 Cells 24 Volts 40 size motors Electronic Speed Controller ESC Electronic throw ad pat pend ESC 100120 amp coot 300 amp surge$5995 Electronic Switch ESW Fully adi reversihle point indicator ESW 23030 amp coot 75 amp surge$2995 ESW 26060 amp coot 150 amp surge$3995 ESW212O120 amp coot 300 amp surgeS5995 Please specify receiver coon ordering prod ucts Guaranteen 6 months trom purchase dote Call write details TREK IND regon Ave ord NY 11763 516 758-8170 LIGHTING SYSTEMS THE ORIGINALS. Still Best *RED 01Programmable Flashing Navigation Lights 9V$2495 #RED 02Strobe Light Ad] Rate 9V$1995 *RED 03Landing Lights 48V$3995 *RED 04Mars Rotating Beacon Ad] Rate 9 V$1995 #RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 #RED 23Real Strobe Light true zenon strobe 3V$2995 S SEE YOUR DEALER 0 SEND STAMPED ENVELOPE FOR RAM INFO unavaIlable locally send check money order full credit card info coat Item plus $400 $5 00 foreign immediate shipment Include full addresa U PS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 Near AiRES MOLLS METALS 500KS PRECOS5ON INSTRUMENTS ~COMPLETE COTOLOC $200 TDDLS CD C4M1U RoO OTs items sPr~iB2555ssss * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No 202 Air Cleaner Fine *275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc po Box3786 Cones Mchganaole Add $250 sh pp op M ch gao ea dents add 4% ua eu taxI 11376 Ridgeway RoadKensington OH 44427216 223-1950 DrtObatiC span $17995 span -$18995 Sportobatirs M 84span92span-S1to 84 Sportobatics 10 lbs ideal 90 2C 120 4C engines 92 versions 13 lbs perfect ST2000-3000 equivalent engines Both versions build quickly lite-ply & balsa fuselage & tail & foam wing Sportobatics fill need hotdog show-off sport planes Knife-edge takeoffs flat spins snap rolls rtobatics will anything can yet land like strainer Super Canopy Ohio CS-equipped 5P7 Vision 85P transmitters up-grade consists following features ATRCS 5P7 Module Transmitters Replaces Micro-processor improved versionallowing larger sophisticated programs Replaces setup memory chips larger capacity setdoubles setup memory 8 setups Up-grades ATRCS transmitters include new featuresAdds PCM fail safeAdds aircraft naming setup Vision 85P Transmitters above plus additional receiver capabilityFutaba FM-PPM 4-8 channels Both Vision 75P ATRCS transmitters will work RCD FM-PPM 4-8 channel receivers JR FM-PPM 4-8 channel receivers past would have write down setup information since $25995 Giant 99 x 16 Vinyl Clad Nylon Yellow Blue White Two-Color Combinations 8 rugged tube frame 10 easy-out stesi tent stakes nylon guy cords Folds neat hesvy-duty cardboard box goes up quickly complete instructions Optional name city state printed ends $6000 replacing setup memory Now due improvements methods no longer have will automatically save setup information generate paper hard copy restore setups new memory chips hard copy will sent back along transmitter records price version 30 up-grade just $9500 plus $400 UPS ground $1000 UPS blue shipping CA residents need add local sales tax Payment check money order Visa Mastercard Send ATRCS transmitter less antenna battery Control Systems Labs 238 So Hillview Dr Milpitas CA 95035 Phone 408/946-4142 Feather Cut Hot Wire Foam Wing Machine new foam wing cutter produced Tekoa Center Design company better known us LA area father/son team Roger Blayne Chastain As read last month Terry Edmonds Nationals report Blayne Senior age group flier placed first both Standard Unlimited class fact Unlimited class beat Open age winner Brian Agnew point Roger called back asked Id like try machine said betI want cut some cores anyway Roger thought Id suitable test subject because have never cut cores before course Ive seen done Julian Tamezs Channel Productions foam cutting video person other occasions Ive always built kits never cut own cores machine arrived very sturdy 55inch-long mailing tube small parts neatly individually packaged long poly bag whole thing went together about hour Its mainly just matter following easy instructions looking diagrams threading screws nuts together two main parts machine made blue anodized extruded aluminum right off bat know Roger has put lot effort project larger extrusion called body 51 inches long designed mounted edge work bench held place tape easy removal taped edge 24-inch-wide hollow core door sets table As can see photo mounted body two horizontal two vertical rollers four rollers can slide back forth tracks fixed place wing nuts rollers adjust machine 184 Model Aviation OHIO SUPERSTAR PRODUCTS INC ADAPTOR THROW-A-WAY YOUR COLiETS CHUCK & WRENCH USE OUR 0 TO jCHUCK DREMEL POWER TOOLS RUNS 100% TRUE & ONCENTRIC AT FULL RPM NO 501 ADAPTOR ESS cHUCK $1895 IDREMEL 850395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POUSHED STEEL USED FOR CUTTING PLASTIC WOOD SOFT METALS LEXAN PLEXIGLASS & ETC AVAILABLE IN 006 008 010 012 014 016 018020023 025 V028 032ThICKNESS NO 502ARBOR$800 OUR IDE DIAMETER @ $675 EA NO 503 014 X 114 SAW $800 SAWS ONLY WORK WITH OUR ARBOR MICRO SELFsTARTING TORCH No need Ifint matches Just press Piezo Self-Starting button -for micro size adjustable flame barns 237h up 3 hours Operates standard cigarette -hghter butane refiflabfe Tank fits comfortably palm hand made high-impact rubber allows safe non slip comfortable grip Sapplied can butane MT770 Blow Torctt $3500 ne butane MT771 Butane 5 oz0600 EASTERN TOOL& SUPPLY CO I49GRANDST -NYC NY 10013 WRITE FOR CATALOG$300 ORDERS 212-925-1006 WHEN ORDERING- PPD ADO $300 OFFICE 212-226-3749 CODADO$500FAX212-925-1010 cut cores up 50 inches long almost width taper rollers guide two very flexible 22 gauge power wires connect hot cutting wire alligator clips other ends wires connect low voltage power source power wires serve heat cutting wire also pull hot wire through foam block smaller extrusion called control arm 48 inches long pivoted left end body has two purposes compensate difference two power wires travel cutting tapered cores provide pull power wires Tapered cores tricky because cores root 10 inches tip nine inches power wire root travels pull length inch exactlyexplained below the tip control arm has graduated scale its face reads zero 100 use set cuts taper ratio ie tip/root pull lengths root end power wire always attached 100 tip wire attached number calculated pull power wires control arm carries 16-ounce lead weight mounted near middle gravity provides motive force hot wire mounted bow 27-inch length 3A inch x 2 inch wood 10-inch-long diameter music wire legs end wrap 18 thousandths T-370 cutting wire around leg bend legs together specified distance wrap around other leg bend legs provides proper tension wire Roger says cutting wire special neither ni-chrome nor stainless steel leader wire standard bow will cut cores up about 26 inches long might think kinda short designers going Schuemann planform type wing has multiple breaks leading edge need two three sections core per wing panel Since foam comes 24-inch-wide pieces its easy economical design two-foot sections can make own longer bow picking up piece wood local lumber yard Roger will soon coming out new aluminum bows 28 40 52 inches long will have feature being foldable legs thus saving storage space Lets now quickly review three ways can cut cores hand gravity electric motor drive Guiding bow hand straightforward method However get good consistent cores youand perhaps helper other endneed practice steady nerves make constant speed cuts Electric motor powered cutters can quite sophisticated require lot rigging gears belts such important take experienced operator correctly regulate both December 1991 185 Funniest Amateur Video Ever R/C FOLLIES PRESENTS CraziestWackiest Funniest Model Airplane Wrecks Youll Ever See! Over 30 Minutes CRASH after CRASH after CRASH Flying off lake smashing ice What happens hand launch forget turn radio plane seaplane turn treeplane Rocket engine mounted Eindecker Four wrecked planes turned Twin flew just lot Bad flying much Dont miss one-of-a-kind exciting funny video offer youll ever see $1 995 plus $3 shipping handling HOLLAND SOUND SERVICES 1 Dunham Dr Dunmore PA 18512 phone 717-346-8742 VISA-MASTERCARD PA Orders add 6% sales tax speed cut heat wire Otherwise foam will burn excessively too hot/slow wire will drag too much too cold/fast As mentioned above Feather Cut machine gravity type cutter Its beauty simplicity set heat cutting proceeds automatically its own pacea feature well suited new users As said Im new game myself Feather Cut machine has couple novel features appear make work better other designs Ive seen feature sliding lead weights legs bow cutting airfoils bottom profile slide weights toward hot wire wire maintains good contact templates going downhill cutting top profile slide weights back wire has less downforce templates going uphill second related feature bow works horizontal position small tailwheel middle wood part bow allows roll across work surface during cutting old method operate bow vertically suspended springs rubber bands course another potential source adjustment error hardest part cutting foam cores making templates instructions Roger recommends second motion S Discover SECRET TO HASSLE-FREE CHARGING Dont miss perfect day because uncharged batteries amazingly simple AUTO-TRICKLE ADAPTER converts ALL overnight chargers FULLY AUTOMATIC TRICKLE CHARGERS Nothing else like Simply plug wall plug overnight chargers push button forget about batteries whole fleet will ready next day week month year Nothing solder connectors buy 100% solid slate device safely reduces chargers output pulse trickle after 16 hours Directly supports 1 3 chargers However powerful 120 Watt capacity easily HANDLES UP TO 30 CHARGERS Nothing else comes close convenience simplicity safety cost effectiveness T I1 E Hurry secret out Get AUTO-TRICKLE ADAPTER TODAY YOUR LOCAL HOBBY DEALER send $3995 5&H Directly Tejera Microsystems Engineering Inc 800 729-9210 PO nox 340608 Tampa Florida 33694 ADVANCED AERO PRODUCTS VS & Os SIMPASS 120 EXI4A5BT SYSTEMSrii 55 50155 toO sFoOUATO4 5555 HWnE5 W5 PATTERN MR5FT AND WINATS 551 ODvANCeD ASRO poosacos OTT 505 25-C 5450 T5 75553 554 954-3945 using Chuck Andersons Airfoil Plot Program draw full size airfoil profiles computer printer Chucks program $25 Address Box 305 Tullahoma TN 37388 Phone 615/4555788 glue printed airfoil plots horizontal grade Formica horizontal thicker vertical grade 3M No 77 spray adhesive cut out jig saw accurately sand polish surface hot wire rides Note need two paper plots per wing section because airfoils template made two parts matching pairs pairs cutting airfoils bottom profile other top type template must used Feather Cut machine because always cuts top surface template early days foam cutting templates same wing rib used two-piece templates have proven better kind core cutting because register work surface unwanted twists wont introduced sketches below show typical pair templates SD 8020 stabilizer section dashed lines indicate actual section chord spaces before after actual chord hot wire lead-in lead-out ffp7j.4t1 #A 3orT-l cur rIPiPLAT 4A r GuP operation pin sharpened pop rivets work fine bottom templates leading edge always cut first ends foam block must first pre-cut cores planform hand using hot wire bow using Formica triangles Continued page 188 186 Model Aviation Model ATAcxl works existing NiCd overnight C/10 chargers Yes works cordless power tools toys individual cell chargers ste THE WIREMASTER TM ndcrfcoler 4 different models wire bending tools offet Also available Alloy Stainless Aluminum Melric hardware Checkyour dealet first un available send business size SASE free catalog JCM COMPANY 114 washington Torr Dopt Waukogan IL 60085 Efficient wide tips thinner airfoil sections combine greater thrust noise suppresion Will out-perform wood & other plastics water sand & gravel runways Made strong 33% glass-filled nylon RPM rating 160K divided diameter inches 1/2A Series 55x4 55x45 6x35 6x3 6x4$ 99 GIF Series 7x4 7x6125 8x4 8x6135 9x4 9x5 9x6 9x8 95x6155 10x6 10x7 10x8.. 175 11x6 11x7 11x75 11x9195 K Series 12x6 12x8 285 13x6 13x8 385 14x6 14x8 495 15x8 15x10 545 665 16x6 16x8 Antique Series 10x5 11x6 12x6 13x6 14x7 16x7 225 245 335 435 545 715 See local hobby dealer Master Airserew propellers accessories Windsor Propeller Co 3219 Monier Circle Rancho Cordova CA 95742 57-6 AL guides Make sure templates resting squarely against perfectly flat work surface foam well weighted down make bottom cut replace bottom templates top ones top cut template pairs must have exactly matching pin holes replace bottom template top same holes foam used otherwise cuts will off Because bottom cut first core settles its bottom bed need compensate templates width wire-cut minimized hot wire cuts core about 10 thousandths undersize vacuum bag cores glass/carbon fiber undersize about right allow skin thickness Once templates made found using Feather Cutter piece cake Im type person Murphy mind because can usually find some way screw up time try something new machine worked beautifully right out box encountered no problems making perfect looking cores say highly unusual Just get everything set hot wire resting templates four rollers adjusted power wires attached hot wire control arm turn power supplyand away goes foam makes very satisfying sizzling noise hot wire slices through about inch per minute need sit watch go catching bow wire comes out trailing edge can use low voltage up 28 volts power supply like Variac adjustable transformer opted get Rogers Thermal Generator because no-fuss operation unit makes perfect companion Feather Cutter Roger says has fool-proof wire temperature control certainly found true simply adjust knob center dial needle Thermal Generator senses resistance whatever length wire using automatically supplies proper amount power heat wire about 2122250 Simplicity itselfl & MODEL BUILDING 7SERVICE RADIO CONTROL PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 wATcI4oGuE ROAD 8 SEAIEN SAM 8 NY 10314 As foam Roger recommends using Dow PRB Plaster Ready Board blue material same blue Dow Square Edge insulating foam PRB has density two pounds per cubic foot rated 25 psi has open aggressive cell structure Roger says want build killer wing consider Dow HI-l 15 High Load board rated 115 psi six lb/cu ft difficult locate though Finally lets get back tapered core paradox wing root 10 inches tip nine inches youd think taper ratio set control arm would 900 no standard procedure Continued page 190 0 0 0 0 j 0 0 0 0 Ousrlerffiaster Sport lips 73 Span 035 similar $21 build FUNK 385-C$25i~ 1/4 scale 108' Span 12 four stroke scale 84 Span 61 four otroke$21 o photo reduced igaS KINNER SPORTITER K 4 scale 117 Span 035 S cylinder $25 ylinder radial scale 76 Span 61 four stroke $1 o reduced DAVIS 01K scale 905 Span 035 5 cylinder radialp~pPs r/6 scale 603 Span 45 four stroke$1 500 photo reduced STITS PLAYHOY$25I /a scale 88 opus 035 larger 188 Model Aviation Leader Small Airfoil Technology MASIE 11 AHISCREW TAYLOFICRAFT q in 12 $250 61 DGAO Piano O0riOgl PHOTO DOCUMENTATION PACKS uvu"- nrr Scule Piano Alt PLANS NOLLE5 OOIPPFS P5 C cdli Insirocion Sonidet e.money Order COOs clip power wires hot wire inch either end foam block root end power wire actually travels little 10 inches tip end wire travels little less nine inches determine actual lengths travel easiest way place pre shaped foam block piece paper project end inch straight edge pencil measure projected ends Feather Cut machine sells $13950 plus $850 S&H Thermal Generator $9450 plus $450 S&H Both may ordered Tekoa Center Design 3219 Canyon Lake Drive Hollywood CA 90068 Phone/Fax 213/469-5584 New Low-Cost Vacuum Pumps piece April column about making vacuum pump refrigerator compressor generated lot interest knowing what now wouldnt have bothered making Both Composite Structures Technology Aerospace Composite Products WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries fh chargers need pacd6aget wet Cell & Cycler-Chargec *23996 Fits 48V RX 96V Tx p00ll5Plus $750 S&HaGeGelled Cell Others available write calle erieS Regular Model. 96 field kit sinaiPlus $500 P&H electriC boat batteriesSpecify 612 24V 8qnL Canton II spoil winch large boat andPlan $600 P&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssE Ion OlloineailooPO Box 221 605ga-5g24126316V Bill Eff get * says Only Piano Pattetott Sets give anvorted designs want have selected best classic designs time foe pvc choose tcer patterns tot part ate impottast eaclusice feature Curtiss HAWK PlC 9400 wingspan68 length 2268 sq snieg aeon Fnr 13 23 ClO engines annel RIG RCOS 14 $2498 7 ii Curtlss FALCON 0-I B/A3 114 wingspan ength RCO$13 -- g2ggh 3160 sq wing area P023 tn 3h CID engines annel RIG One-Tb dSae NVTI~PpeT Pee PA22 38 ~jn7413SaePpe Cub 3 Quarter Scale- WWI0$7f SE-SA wing area 78 22 engines gg/e wing spane222g 5g PCO$-7 h0 SPAD C-XIII 7g%wingspan212P5gin wing atna 13 31 nogines Capable lynt captotes imagination RCOS-h 5 FOKKER DR-i TRIPLANE . 72 wing spen sg 0K wing atno 78 1 h$ engines PCOSh 8 5OPWiTH CAMEL P1 Sd wing span 1 5g wing area 11 lbs wlo SIC woodS balsa consttuction over hh sg ft drawings PCOS-t 1 5 Fokker DVII P$ wiognoan 2220 Sif iv w $ $0 2h cid engine ch SCOSS h 1/4383810 Albatros DVa d War-f FIghts -gairrsynoontecsamekn Pwntaett y cc$ioder roth P Shrmwe ergee ii tee silihOPli OnritOOO$utaeotmm w OteitO Onni tOns S Orta 500* ncnelr vets ano 5i gotapeenedsyeaaarctsefl iCtfttp ovim 000017 tetlOtnOt den ic perlano arigealca Iv ne pci en oem tepernien nat reocaaO6eieiCOatgeaae erpre padr end Sitar 00000$ isodog gee FOrt3102301 0 pogroac weOe Oppor rOiOsliessnCIOO wirgepan 4 COnnoni nic g Overall Leogro itied Scale Liar eanom OrtOii 2072 sy wing grea a Wirg Panels OuatOt Scala 1/3 Scale MONOCOUPE NA Wingspan 92 Onerall Length - 2100 sq Wing Area Fnr 29 en 38 CID hegines RC3S-4 Bill Ellinget Foonding Mewbnt AMA NFF5 Hall nt Fewer Pricee tor complete plans sub asnemclv S detailed parts hOts PLEASE ADD g3gO shipping wailing tobsl sew 1991 Plan Seer OrvOhere Irafriodasle ovar firel orderli WE TECHNICAL SERVICES RO Box 420144-S Atlanta GA 30342 190 Model Aviation No NITRo Runs 5% Gets about 1 minute ounce fuel OPS MAxI 30 18 Statically dynamically balanced 5 intake ports shaft induction roller ball bearings long stroke pump carb readily available parts l8x8TopfightM.8l85rPm 20 x 6 Zinger8036 rpm 24 x 8 Zinger 30 rpm stock VS parts 54sPeoPleof now selling low cost continuous-run littlebreather strip T-fitting just $5 RC Soaring/Blakesleepumps work great onlymore set obviously way go Continued page 188drawback its too serious thatCST has convenient toll free order pull maximum six inches ofnumber l-800-338-lCST Aerospaces mercury Six inches shouldpump called E-Z Vac goes E-Z use white foam anyway whenLam ACPs excellent epoxy laminating using blue foam cores much vacuumresin sells $6500 itself probably adequate work$7500 both plus $400 S&H set CST calls pump Mighty Mini-similar CSTs ACP set also Vac sells $6995 itself andincludes very neat hose fitting $7495 both plus $600 S&H set asattaches flat surface bag plus shown photo includes threetwo Quick-Seal clips below yards nylon bagging tube sealant ntinued page 192 opper iant Semi-Scale Sportster reminiscent 1930s Heath midwing homebuilt Spans 85-in 90 power 2 plan sheets No 704 Arrow$500 CL Stunt Wing inspired 1960s-vintage Bill Netzeband designs new PAW 049 diesel engine Spans 298-in No 705 Zenith$200 FF Hand Launch Glider serious competition Wing DT spans 18-in 35-38-gr $375 No 193Selleito CL Stunt model lMcDonaIdl winner 1976 1999 1982 FAI World Champs$ No 262crashmaster CL crash-proof trainer two sizes15/30 35/40 power No 3101930 Ftet Biplane AC Sport Scale 35/40 4-channel Wingspan 56-in 4-scale Two plan sheets$625 Mo 314Drake II AC Ken Willards flying boat 3channel 15 power Fly land wofi removable gearS375 No 326Taylor cub AC Don Sinus Schoolyard-Scale tar 049 power 2-3 channel Spans 50-inS359 No 332Zephyr AC small 2-channel Glider hand-launch tow thermal slope soanog$290 No 368LaSer 200 AC Sport Scale replica championOhip Aerobatic flier 40 power 4-5 chanoel Two plan sheets$1075 No 447twA MIsS America AC Old Timer Texaco model 049 910w 2 chaneels$650 No 4604-40 AC shoolder-wiog Sport flier 4-cycle 40 power 4 channels$650 No 539Simltar slow-MotIon 15 AC Tailless flying wing 15 engines spans 60 ones 3-cb AC$359 No 578Schweizer 1-260 AC Quarter-scale Sailplane spans 125 Two plan sheets$1475 6No 581Gee Bee Model Y AC Golden Age Racer spano 72 scale 60 power Three plan sheets$ 1175 0No 588Marish AC Slope-Soaring Sailplane spans 41 uses 2 AC channels$ 425 No 598coronae 150 AC-Assist Old-Timer enlarged 150% opens 7210 uses 40-size 4-strokel 30-size 2-stroke$ 950 cjNo 603Sparrow Hawk P-30 FF Competition robber-power plase won 97 Nuts Spans 30 in$ 225 No 626Sweepee AC Sport/Paltem canards forward-swept wing spons 64 in. uses 40 power 2 plan sheet SI$ 1300 No 626Prime cue AC Sport/Aembatic plane spans 99 in. sans Quadra 35140-size power Two plan sheetsS 1390 --No 630OrigInal Fly Baby AC Old-Timer spans 72 in. uses 19125 2-cycle 49 4-cycle power 12 plan sheetsl$ 1150 0CNo 644Bellanca columbIa AC Schoolyard Scale 2 AC channels hA engioe Wingspan 46 ur$ 575 No 646Winter Hawk FF Rubber-power Coupe dI-liver compotfilan plane spano 47 inS 375 CO anNo 65047/60 RC Special AC Aerobatic sport plane 49 power spans 61 3 plan sheets$ 1975 05 0 No 602Der Pledermauw AC Low-wing sport plane 20/25 power spons 55 in$ 675 o -No 6541amecat AC Trainer/sportoter styled like F14 spans 66 49/61 power Four plan sheets$ 1525 .No 667Super Squire AC Troiner 35/40 2-stroke 53 4-stroke power spans 56/a in$ 759 0 0No 659Boom Box FF Wakefield Robber compettion plane spans 54 in$ 490 0No 601Embry-Omatic FF Embryo Endurasce mbber-power plane spans 20 inS 290 No 663Pee Patch AC Sportster spans 69 uses 49150 4-stroke power 2 plan sheets$ 990 E 0No 664Stuka Stunt CL Stutter semiscale spans 37/a inS 590 No 605conacierittous Oblector FF Moloihill Rubber competition pfane spots 59 flat$ 575 503 66 s AC Sportoter spans 49 uses hot 29132 power 12 plan sheets 75 No 607AT-6 CL Semiocale profile StonIer 35/40 power spans 47 inS 575 6 ENo 609Roto Raven AC Sailplane unique twist-wing control Spons 76-ie Requires elevon nasing$ 650 z CUNo 671cessna cardInal FF Reminder Scale sport flier power spans 39-isS 575 INo 672Krackerjac AC updated version pioneer sport plane spans 74-in two plan sheetsS 1375 No 674 Krumpier AC 975-powered Electric semi-scale bi-winger spoan $ 575 oS 225 No 675BOF-1 FF twin-tailed sport filer Coo 02 Pee Wee engine spans 25-in No 676HIlIner AC twin-electric high-wing Sport ship denigned H6ine lmp-39 motor Has tricycle gear spans 40in.$ 406 -C-No 677ThunderbIrd CL Stutter 29-35 power Two plan sheets drawn original 1982 Veca Spans 54 in$ 975 eNo 676Sean Box FF Woof Coast Bostonian Outdoor design Spono 10//a in$ 159 -o 05oNo 679BIg Blngot Large AC Sportster sporo 95 120-24 power Two plan sheets$ 1790 SNo 6011969 Beds BD-4 FF Rubber Scale modni spans 18 in$ 325 No 682B T VIntage Trainer AC Reminder-Scala Sportster 20-size engises Spans 47% Two plan sheets$ 1156 No 684Staggerwlng Beech 3-Channel RC Schoolyard-Scale to-wieg Sportsler 049 power Spans 32-in$ 375 50lbNo 685Akro-Bat CL Stunner high-performance 049 engines Spons 32-in$ 230 E bNo 686Fotler AC Pattens-typa sport plane 2- 4-cycle power Spans 65-in$ 725 0 688 alth GlIder PP robberband-launched toam/baise Canard Catapufi/Steath Obder combo Spaes 9-in 60 No 689Thomas Morse Scout 54C AC 4-scale biplane 90 power Spaos 63-in 3 plaa oheets$ 1975 IDNo 690p-62B TwIn Muateng CL Profile Sportoter twin MVVS 25 diesels Spans 48-in 2 plari sheets$ 1050 C 0No 6911927 NL2 FF Scale model Polish bomehoifi tar 8-8 watt motor mkber 902 Spans 29-re$ 225 0No 6923 Meter Scooter AC High Performonce Sailplane Spons 118-in 2 plan sheets$ 1159 693csrdlnal classic CL Sport Stunter 35 power Spuos 50-in$ 575 CNo 694AIrmaster AC Canard Sportoter lnr two 40 push-pull engines ar 60 pusher tractor Spans 66-in 2 plan sheets 5 1475 -0No 695Spirit St Louis CL Scale replica far 1525 power Spans 46-in$ 575 0No 696Pole cat FF P-30 Class AMA Senior record holder Spans 31-in $ 225 No 697Tlgerkltten 8 AC High-performance Sport Aembatic design 05/15 Coba9 electric power Spans 54-in 0one plan sheet plus two-page inotrocton booklet$ 1990 -~No 696NovaClone CL One-denigo malti-enent Sport filer 35 power Spans 42-rn$ 490 No 699 Top cat 90L-1 FF Robber PAl Indoor Stick Gliderhot der AMA Cat PlO & Stich Naimnal Records Spans 13125-in oTwo plan sheets$ 390 o 700 Randys DIme AC economical versatile Sport Trainer ideal 10 power Weigirs 33-az spans 50-in$ 575 0 115 No 701 Jumpln Gso AC high-performance Sportster designed fun fly events Weighs 3-9 spans 48-la 40-45 power $ 725 No 702 Nelnkel NE 18 PP Scale model 1924 German monoplane Hiline Mlei-6 geared elecfdc motor Spans 28-in 290 005~ v32][b-1-10-1-10]] C5 rcle numbers plans wish order best handling please include re- quests payment some other service plans order i 3262310314326332386447 460539578581588598603626 00 ua O628630644646650652654657 cs coo659661663664665666667669 ZZO671672674675676677678679 E681682684685686688689690 691692693694695696697698 0 qPlan 699700701702703704705 • price includes first class postage US delivery Air Mail over 300 miles Far orders nan-US address e add $258 far AIr Mall asia sand handlln Ian check money order payable US funds drawn US bank Model Aviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery 0 Please print carefullyEnclosed $ NAME_________________________ AMA No _________ _ ET CITY LTATh ZIP________ Plans orders must received AMA no later December 1 Model Aviation Christmas delivery again set best buy ACPs address Box 16621 Irvine CA 92714 Phone 714/250-1107 CSTs Gail Gewain sent Mighty Mini Vac set try must say after using bag wood veneer skins Thermal Eagle wings Im completely sold Just plug let humm away Being belt suspenders type took vacuum gauge off other pump make sure Mini-Vac pulling okay finger over hose indeed pulled six inches mercury connected bag must have pinhole leak because reading stayed bit under five inches good enough though As long bagging few other items worth mentioning CST has 35 ounce unidirectional carbon fiber fabric comes 10 inches wide sells $1200 per lineal yard beautifully thin 5 thousandths thick material perfect wings layer two lightweight glass top George Span Aerospace just introduced reusable Quick-Seal clips used seal ends vacuum bag tubes consist 743 inch solid plastic rod fits snugly inside fairly rigid Ushaped plastic channel 20 inches long just place bag over channel push rod channel thus forming easy doand undoseal $350 Another new item George pair pumps E-Z Lam preset dispense ounce per stroke part resin e per stroke part B hardener will blessing baggers dont have precision scale weighing epoxy New League Silent Flight Address LSF President Bob Steele communicated LSF now has new permanent mailing address 10173 St Joe Road Ft Wayne IN 46835 old Winfield IL PO box wrn continue forward mail year until August 1992 Bob says mail turnaround time will back 7 14 days used Members may phone Bob 219/485-1145 Mankato Model Soaring Society newly formed club North Mankato Minnesota Bob Botha driving force says has permission use nice 40-acre sod farm flying field Interested sailplaners electrics welcome too area should call Bob 507/345-1832 evenings weekends Southwest Winter Soaring Contest will again sponsored Central Arizona Soaring League held Phoenix February 1 2 will two one-day contests flying modified Triathalon precision duration tasks Sounds like good place schedule winter break info write Chuck Wehofer PO Box 2472 Chandler AZ 852gEli
Edition: Model Aviation - 1991/12
Page Numbers: 48, 49, 183, 184, 185, 186, 188, 190, 192
THE MODI 900 Greco Technologies Youre probably asking Whats Modi 900 what Greco Technologies honest can pass about either time material gleaned press release phone conversation gliders principal designer Greg Chun Greg works Greco Engineering division Greco Technologies told company new model manufacturing wants enter business adjunct engineering consulting work rendering shows attractive Modi Its specifications modem up-to-date thats about know Greg said have gone through three design versions examples final design about late August placed hands experienced fliers evaluation Entering model glider market especially high end isnt simple proposition Before offering glider sale design must thoroughly tested Construction details must proven workmanship shown high quality Most important gliders performance should compare well competition time read Greg says Modi will flying Southern California contest circuit should reporting real life results soon Until would seem best treat following press release news item heres Readers Digest version Greco press release Greco Technologies excited announce arrival Modi 900 open-class competition sailplane has 50-inch fiberglass Kevlar fuselage RG15 triple-taper-cut wings made out extruded blue foam glass lots uniweb carbon fiber cloth development unique sailplane undertaken Greco engineering technical consulting firm Pasadena its staff aerospace engineers sailplane enthusiasts allowed insight both technical aspects aerodynamics wants needs hobbyist Modi 900 now off drawing board production available public Modi 900 sets itself apart competition its strength durability layer plane designed built strength versus weight considerations mind wings start PRB blue foam base overlaid full layer top bottom 45 oz carbon fiber cloth plus second layer cloth top 10 inches bottom 15 inches root wing strength encased 14 oz fiberglass 48 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Dan Troxell Laguna Hills CA bought fuselage Trom Holana Kern Germany made own wings half-scale Grobe 103 Aero two-place glider will featured January Artists rendering beautiful Modi 900 Greco Technologies ship will come largely pre-built ARF Designed thermal multitask competition has 1 1Oin wingspan 903 sqln weight 70 80 ounces Chris Aho left holds dad craigs protoiype RnInum y uuuuIu De signs Anthem updated improved Lovesong Right winners 1991 Southwest contest Phoenix L-R front Ian Dou glas John Mangino beck Steve George Ed Holder both Leg ends Jim McCarthy Comet 89T 1992 Southwest Feb ruary will bigger belier yet cloth laminating epoxy root ribs sub ribs 14-in plywood laminated strips carbon fiber ensure endurance wing joiner rod -in carbon fiber rod encased brass tube giving tensile strength steel fraction weight Aluminum shaft hinges flaps ailerons included ensure rigidity under high pressures fuselage constructed Kevlar fiberglass Under testing Modi 900s wings withstood pressures approximately 375 foot pounds before delamination Other vital statistics include Span 110 wing 50-in fuse wing area 9026 sq weight 70-79 oz wing loading 110 oz/sq ft aspect ratio 1311 airfoils RG15 wing 5D8020 stabilizer kit comes two forms pre bagged Almost-Ready-to-Fly pre bagged kit comes wings rough stage just out bag kit takes 30 80 hours complete retails $595 ARF kit comes hardware installed finished wings takes 10 15 hours complete radio installation retails $895 information catalog contact Greco Technologies PO Box Anthem Dodgson Designs new name pedigree going back 1972 Bob Dodgson began manufacturing aileron glider kits Bob introduced 134-inch-span Windsong 1982 few years ago strengthened structure cope modern exuberant flying styles renamed Lovesong Songs have probably popular thermal competition ships during period Continued page 183 December 1991 49 10 South Pasadena CA 91031 call 1800-34-GRECO Ext 23 Feather Cut hot wire foam Cutter gives builders easy-to-do Pro quality results small low-cost vacuum pumps answer bag gers prayers Mighty Mini-Vac R Composite Structures Technology Nylon bag material breather felt sealant part system whole thing available CST $7495 Mid-Columbia/Blakeslee Continued page 179 heard planes touch Yeah glad Rich such smooth flier didnt flinch RC Soaring/Blakeslee Continued page 49 around country Bob says hes sold several thousand kits Now Bob has updated Song design based experience latest kit Saber Basically Anthem Song 5D7037 airfoil obechi sheeting flying surfaces aileron flap servos wings 48-inch bullet proof wing spar %-in joiner rod Bob says newsletter Second Wind prefer larger glider scale-like profile easy see great distances want added L/D long span high aspect ratio wing nothing available can match Anthem limited time will continue offer Lovesong have computer radio prefer slower flying yet high-performance tripped Eppler 214 airfoil sure get Lovesong theyre still production suggest wait gone AVIATION CHfISTMAS GIFTS SALE r VALUABLE COUPON ngall paper CORSAIR Procut/colored W/MOTOR $4 2 for- $6 ___ ~Precolored GIFT glder-sI ers & envelopes j2 $3 24 $5j CATALOG 1 3000 planes $18______ w/lst order- over PAPEII AIRPLANE club $1500$251 PAPER AIRPLANES II 433 NIHOA STREET KAHULUI HI 96732 USA ISeI uVoo will gone Prices Anthem Base kit $279 kit pre-built spars $345 kit pre-sheeted wings stabs rudder limited availabilitycheck before ordering $430 add $12 UPS shipping kits Write Dodgson Designs 21230 Damson Road Bothell WA 98021 Phone 206/776-8067 Monday-Friday 10 am 5 pm Pacific time Bobs Second Wind newsletter good way keep touch whats happening Dodgson Designs About 700 customers subscribe Two issues per year spring fall published cost modest $200 $300 Canadians An Anthem builder Craig Aho Mountlake Terrace near Seattle Craig called sing Anthems praises kind enough send photo letter picture Anthem promised son Chris holding Sorry poor quality photo Anthem fantastic flier using 5D7037 airfoil new spar system roll rate impressive speed range wide good top end aircraft still has best light lift qualitiesas did its predecessor Lovesong Ive hung up Falcon 880 now Ive got aircraft built prototype 60 hours dee 6rckoo/ Learn fly ottr planes private field Five Dr 6 day course $350 Open year round Send SASE Complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 scratch built wood parts builds fast large enough see easily has classic Song look Bob now offering new option Anthem Saber completely pre-sheeted flying surfaces additional $150 ATRCS Version 30 u p-grade brought guys Control Systems Laboratories Gene Englegau Tom Mroz Youll recall introduced ATRCS conversion Airtronics Module transmitter summer 1988 Shortly thereafter Airtronics contracted CSL provide similar hardware software very popular Vision transmitter CSLs latest announcement Now new improved software revision plus improved components can installed December 1991 183 ~IEKINO STEPPING INTO THE FUTURE OF R/C THE NEWEST IN ELECTRIC FUGHT PRODUCTS Units Feature Surface Mount Technology Light Weight Ultra-Slim Advanced Linear Design Low Current Draw lOMA High Power MOSFET Design 118 Cells 24 Volts 40 size motors Electronic Speed Controller ESC Electronic throw ad pat pend ESC 100120 amp coot 300 amp surge$5995 Electronic Switch ESW Fully adi reversihle point indicator ESW 23030 amp coot 75 amp surge$2995 ESW 26060 amp coot 150 amp surge$3995 ESW212O120 amp coot 300 amp surgeS5995 Please specify receiver coon ordering prod ucts Guaranteen 6 months trom purchase dote Call write details TREK IND regon Ave ord NY 11763 516 758-8170 LIGHTING SYSTEMS THE ORIGINALS. Still Best *RED 01Programmable Flashing Navigation Lights 9V$2495 #RED 02Strobe Light Ad] Rate 9V$1995 *RED 03Landing Lights 48V$3995 *RED 04Mars Rotating Beacon Ad] Rate 9 V$1995 #RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 #RED 23Real Strobe Light true zenon strobe 3V$2995 S SEE YOUR DEALER 0 SEND STAMPED ENVELOPE FOR RAM INFO unavaIlable locally send check money order full credit card info coat Item plus $400 $5 00 foreign immediate shipment Include full addresa U PS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 Near AiRES MOLLS METALS 500KS PRECOS5ON INSTRUMENTS ~COMPLETE COTOLOC $200 TDDLS CD C4M1U RoO OTs items sPr~iB2555ssss * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No 202 Air Cleaner Fine *275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc po Box3786 Cones Mchganaole Add $250 sh pp op M ch gao ea dents add 4% ua eu taxI 11376 Ridgeway RoadKensington OH 44427216 223-1950 DrtObatiC span $17995 span -$18995 Sportobatirs M 84span92span-S1to 84 Sportobatics 10 lbs ideal 90 2C 120 4C engines 92 versions 13 lbs perfect ST2000-3000 equivalent engines Both versions build quickly lite-ply & balsa fuselage & tail & foam wing Sportobatics fill need hotdog show-off sport planes Knife-edge takeoffs flat spins snap rolls rtobatics will anything can yet land like strainer Super Canopy Ohio CS-equipped 5P7 Vision 85P transmitters up-grade consists following features ATRCS 5P7 Module Transmitters Replaces Micro-processor improved versionallowing larger sophisticated programs Replaces setup memory chips larger capacity setdoubles setup memory 8 setups Up-grades ATRCS transmitters include new featuresAdds PCM fail safeAdds aircraft naming setup Vision 85P Transmitters above plus additional receiver capabilityFutaba FM-PPM 4-8 channels Both Vision 75P ATRCS transmitters will work RCD FM-PPM 4-8 channel receivers JR FM-PPM 4-8 channel receivers past would have write down setup information since $25995 Giant 99 x 16 Vinyl Clad Nylon Yellow Blue White Two-Color Combinations 8 rugged tube frame 10 easy-out stesi tent stakes nylon guy cords Folds neat hesvy-duty cardboard box goes up quickly complete instructions Optional name city state printed ends $6000 replacing setup memory Now due improvements methods no longer have will automatically save setup information generate paper hard copy restore setups new memory chips hard copy will sent back along transmitter records price version 30 up-grade just $9500 plus $400 UPS ground $1000 UPS blue shipping CA residents need add local sales tax Payment check money order Visa Mastercard Send ATRCS transmitter less antenna battery Control Systems Labs 238 So Hillview Dr Milpitas CA 95035 Phone 408/946-4142 Feather Cut Hot Wire Foam Wing Machine new foam wing cutter produced Tekoa Center Design company better known us LA area father/son team Roger Blayne Chastain As read last month Terry Edmonds Nationals report Blayne Senior age group flier placed first both Standard Unlimited class fact Unlimited class beat Open age winner Brian Agnew point Roger called back asked Id like try machine said betI want cut some cores anyway Roger thought Id suitable test subject because have never cut cores before course Ive seen done Julian Tamezs Channel Productions foam cutting video person other occasions Ive always built kits never cut own cores machine arrived very sturdy 55inch-long mailing tube small parts neatly individually packaged long poly bag whole thing went together about hour Its mainly just matter following easy instructions looking diagrams threading screws nuts together two main parts machine made blue anodized extruded aluminum right off bat know Roger has put lot effort project larger extrusion called body 51 inches long designed mounted edge work bench held place tape easy removal taped edge 24-inch-wide hollow core door sets table As can see photo mounted body two horizontal two vertical rollers four rollers can slide back forth tracks fixed place wing nuts rollers adjust machine 184 Model Aviation OHIO SUPERSTAR PRODUCTS INC ADAPTOR THROW-A-WAY YOUR COLiETS CHUCK & WRENCH USE OUR 0 TO jCHUCK DREMEL POWER TOOLS RUNS 100% TRUE & ONCENTRIC AT FULL RPM NO 501 ADAPTOR ESS cHUCK $1895 IDREMEL 850395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POUSHED STEEL USED FOR CUTTING PLASTIC WOOD SOFT METALS LEXAN PLEXIGLASS & ETC AVAILABLE IN 006 008 010 012 014 016 018020023 025 V028 032ThICKNESS NO 502ARBOR$800 OUR IDE DIAMETER @ $675 EA NO 503 014 X 114 SAW $800 SAWS ONLY WORK WITH OUR ARBOR MICRO SELFsTARTING TORCH No need Ifint matches Just press Piezo Self-Starting button -for micro size adjustable flame barns 237h up 3 hours Operates standard cigarette -hghter butane refiflabfe Tank fits comfortably palm hand made high-impact rubber allows safe non slip comfortable grip Sapplied can butane MT770 Blow Torctt $3500 ne butane MT771 Butane 5 oz0600 EASTERN TOOL& SUPPLY CO I49GRANDST -NYC NY 10013 WRITE FOR CATALOG$300 ORDERS 212-925-1006 WHEN ORDERING- PPD ADO $300 OFFICE 212-226-3749 CODADO$500FAX212-925-1010 cut cores up 50 inches long almost width taper rollers guide two very flexible 22 gauge power wires connect hot cutting wire alligator clips other ends wires connect low voltage power source power wires serve heat cutting wire also pull hot wire through foam block smaller extrusion called control arm 48 inches long pivoted left end body has two purposes compensate difference two power wires travel cutting tapered cores provide pull power wires Tapered cores tricky because cores root 10 inches tip nine inches power wire root travels pull length inch exactlyexplained below the tip control arm has graduated scale its face reads zero 100 use set cuts taper ratio ie tip/root pull lengths root end power wire always attached 100 tip wire attached number calculated pull power wires control arm carries 16-ounce lead weight mounted near middle gravity provides motive force hot wire mounted bow 27-inch length 3A inch x 2 inch wood 10-inch-long diameter music wire legs end wrap 18 thousandths T-370 cutting wire around leg bend legs together specified distance wrap around other leg bend legs provides proper tension wire Roger says cutting wire special neither ni-chrome nor stainless steel leader wire standard bow will cut cores up about 26 inches long might think kinda short designers going Schuemann planform type wing has multiple breaks leading edge need two three sections core per wing panel Since foam comes 24-inch-wide pieces its easy economical design two-foot sections can make own longer bow picking up piece wood local lumber yard Roger will soon coming out new aluminum bows 28 40 52 inches long will have feature being foldable legs thus saving storage space Lets now quickly review three ways can cut cores hand gravity electric motor drive Guiding bow hand straightforward method However get good consistent cores youand perhaps helper other endneed practice steady nerves make constant speed cuts Electric motor powered cutters can quite sophisticated require lot rigging gears belts such important take experienced operator correctly regulate both December 1991 185 Funniest Amateur Video Ever R/C FOLLIES PRESENTS CraziestWackiest Funniest Model Airplane Wrecks Youll Ever See! Over 30 Minutes CRASH after CRASH after CRASH Flying off lake smashing ice What happens hand launch forget turn radio plane seaplane turn treeplane Rocket engine mounted Eindecker Four wrecked planes turned Twin flew just lot Bad flying much Dont miss one-of-a-kind exciting funny video offer youll ever see $1 995 plus $3 shipping handling HOLLAND SOUND SERVICES 1 Dunham Dr Dunmore PA 18512 phone 717-346-8742 VISA-MASTERCARD PA Orders add 6% sales tax speed cut heat wire Otherwise foam will burn excessively too hot/slow wire will drag too much too cold/fast As mentioned above Feather Cut machine gravity type cutter Its beauty simplicity set heat cutting proceeds automatically its own pacea feature well suited new users As said Im new game myself Feather Cut machine has couple novel features appear make work better other designs Ive seen feature sliding lead weights legs bow cutting airfoils bottom profile slide weights toward hot wire wire maintains good contact templates going downhill cutting top profile slide weights back wire has less downforce templates going uphill second related feature bow works horizontal position small tailwheel middle wood part bow allows roll across work surface during cutting old method operate bow vertically suspended springs rubber bands course another potential source adjustment error hardest part cutting foam cores making templates instructions Roger recommends second motion S Discover SECRET TO HASSLE-FREE CHARGING Dont miss perfect day because uncharged batteries amazingly simple AUTO-TRICKLE ADAPTER converts ALL overnight chargers FULLY AUTOMATIC TRICKLE CHARGERS Nothing else like Simply plug wall plug overnight chargers push button forget about batteries whole fleet will ready next day week month year Nothing solder connectors buy 100% solid slate device safely reduces chargers output pulse trickle after 16 hours Directly supports 1 3 chargers However powerful 120 Watt capacity easily HANDLES UP TO 30 CHARGERS Nothing else comes close convenience simplicity safety cost effectiveness T I1 E Hurry secret out Get AUTO-TRICKLE ADAPTER TODAY YOUR LOCAL HOBBY DEALER send $3995 5&H Directly Tejera Microsystems Engineering Inc 800 729-9210 PO nox 340608 Tampa Florida 33694 ADVANCED AERO PRODUCTS VS & Os SIMPASS 120 EXI4A5BT SYSTEMSrii 55 50155 toO sFoOUATO4 5555 HWnE5 W5 PATTERN MR5FT AND WINATS 551 ODvANCeD ASRO poosacos OTT 505 25-C 5450 T5 75553 554 954-3945 using Chuck Andersons Airfoil Plot Program draw full size airfoil profiles computer printer Chucks program $25 Address Box 305 Tullahoma TN 37388 Phone 615/4555788 glue printed airfoil plots horizontal grade Formica horizontal thicker vertical grade 3M No 77 spray adhesive cut out jig saw accurately sand polish surface hot wire rides Note need two paper plots per wing section because airfoils template made two parts matching pairs pairs cutting airfoils bottom profile other top type template must used Feather Cut machine because always cuts top surface template early days foam cutting templates same wing rib used two-piece templates have proven better kind core cutting because register work surface unwanted twists wont introduced sketches below show typical pair templates SD 8020 stabilizer section dashed lines indicate actual section chord spaces before after actual chord hot wire lead-in lead-out ffp7j.4t1 #A 3orT-l cur rIPiPLAT 4A r GuP operation pin sharpened pop rivets work fine bottom templates leading edge always cut first ends foam block must first pre-cut cores planform hand using hot wire bow using Formica triangles Continued page 188 186 Model Aviation Model ATAcxl works existing NiCd overnight C/10 chargers Yes works cordless power tools toys individual cell chargers ste THE WIREMASTER TM ndcrfcoler 4 different models wire bending tools offet Also available Alloy Stainless Aluminum Melric hardware Checkyour dealet first un available send business size SASE free catalog JCM COMPANY 114 washington Torr Dopt Waukogan IL 60085 Efficient wide tips thinner airfoil sections combine greater thrust noise suppresion Will out-perform wood & other plastics water sand & gravel runways Made strong 33% glass-filled nylon RPM rating 160K divided diameter inches 1/2A Series 55x4 55x45 6x35 6x3 6x4$ 99 GIF Series 7x4 7x6125 8x4 8x6135 9x4 9x5 9x6 9x8 95x6155 10x6 10x7 10x8.. 175 11x6 11x7 11x75 11x9195 K Series 12x6 12x8 285 13x6 13x8 385 14x6 14x8 495 15x8 15x10 545 665 16x6 16x8 Antique Series 10x5 11x6 12x6 13x6 14x7 16x7 225 245 335 435 545 715 See local hobby dealer Master Airserew propellers accessories Windsor Propeller Co 3219 Monier Circle Rancho Cordova CA 95742 57-6 AL guides Make sure templates resting squarely against perfectly flat work surface foam well weighted down make bottom cut replace bottom templates top ones top cut template pairs must have exactly matching pin holes replace bottom template top same holes foam used otherwise cuts will off Because bottom cut first core settles its bottom bed need compensate templates width wire-cut minimized hot wire cuts core about 10 thousandths undersize vacuum bag cores glass/carbon fiber undersize about right allow skin thickness Once templates made found using Feather Cutter piece cake Im type person Murphy mind because can usually find some way screw up time try something new machine worked beautifully right out box encountered no problems making perfect looking cores say highly unusual Just get everything set hot wire resting templates four rollers adjusted power wires attached hot wire control arm turn power supplyand away goes foam makes very satisfying sizzling noise hot wire slices through about inch per minute need sit watch go catching bow wire comes out trailing edge can use low voltage up 28 volts power supply like Variac adjustable transformer opted get Rogers Thermal Generator because no-fuss operation unit makes perfect companion Feather Cutter Roger says has fool-proof wire temperature control certainly found true simply adjust knob center dial needle Thermal Generator senses resistance whatever length wire using automatically supplies proper amount power heat wire about 2122250 Simplicity itselfl & MODEL BUILDING 7SERVICE RADIO CONTROL PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 wATcI4oGuE ROAD 8 SEAIEN SAM 8 NY 10314 As foam Roger recommends using Dow PRB Plaster Ready Board blue material same blue Dow Square Edge insulating foam PRB has density two pounds per cubic foot rated 25 psi has open aggressive cell structure Roger says want build killer wing consider Dow HI-l 15 High Load board rated 115 psi six lb/cu ft difficult locate though Finally lets get back tapered core paradox wing root 10 inches tip nine inches youd think taper ratio set control arm would 900 no standard procedure Continued page 190 0 0 0 0 j 0 0 0 0 Ousrlerffiaster Sport lips 73 Span 035 similar $21 build FUNK 385-C$25i~ 1/4 scale 108' Span 12 four stroke scale 84 Span 61 four otroke$21 o photo reduced igaS KINNER SPORTITER K 4 scale 117 Span 035 S cylinder $25 ylinder radial scale 76 Span 61 four stroke $1 o reduced DAVIS 01K scale 905 Span 035 5 cylinder radialp~pPs r/6 scale 603 Span 45 four stroke$1 500 photo reduced STITS PLAYHOY$25I /a scale 88 opus 035 larger 188 Model Aviation Leader Small Airfoil Technology MASIE 11 AHISCREW TAYLOFICRAFT q in 12 $250 61 DGAO Piano O0riOgl PHOTO DOCUMENTATION PACKS uvu"- nrr Scule Piano Alt PLANS NOLLE5 OOIPPFS P5 C cdli Insirocion Sonidet e.money Order COOs clip power wires hot wire inch either end foam block root end power wire actually travels little 10 inches tip end wire travels little less nine inches determine actual lengths travel easiest way place pre shaped foam block piece paper project end inch straight edge pencil measure projected ends Feather Cut machine sells $13950 plus $850 S&H Thermal Generator $9450 plus $450 S&H Both may ordered Tekoa Center Design 3219 Canyon Lake Drive Hollywood CA 90068 Phone/Fax 213/469-5584 New Low-Cost Vacuum Pumps piece April column about making vacuum pump refrigerator compressor generated lot interest knowing what now wouldnt have bothered making Both Composite Structures Technology Aerospace Composite Products WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries fh chargers need pacd6aget wet Cell & Cycler-Chargec *23996 Fits 48V RX 96V Tx p00ll5Plus $750 S&HaGeGelled Cell Others available write calle erieS Regular Model. 96 field kit sinaiPlus $500 P&H electriC boat batteriesSpecify 612 24V 8qnL Canton II spoil winch large boat andPlan $600 P&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssE Ion OlloineailooPO Box 221 605ga-5g24126316V Bill Eff get * says Only Piano Pattetott Sets give anvorted designs want have selected best classic designs time foe pvc choose tcer patterns tot part ate impottast eaclusice feature Curtiss HAWK PlC 9400 wingspan68 length 2268 sq snieg aeon Fnr 13 23 ClO engines 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FOrt3102301 0 pogroac weOe Oppor rOiOsliessnCIOO wirgepan 4 COnnoni nic g Overall Leogro itied Scale Liar eanom OrtOii 2072 sy wing grea a Wirg Panels OuatOt Scala 1/3 Scale MONOCOUPE NA Wingspan 92 Onerall Length - 2100 sq Wing Area Fnr 29 en 38 CID hegines RC3S-4 Bill Ellinget Foonding Mewbnt AMA NFF5 Hall nt Fewer Pricee tor complete plans sub asnemclv S detailed parts hOts PLEASE ADD g3gO shipping wailing tobsl sew 1991 Plan Seer OrvOhere Irafriodasle ovar firel orderli WE TECHNICAL SERVICES RO Box 420144-S Atlanta GA 30342 190 Model Aviation No NITRo Runs 5% Gets about 1 minute ounce fuel OPS MAxI 30 18 Statically dynamically balanced 5 intake ports shaft induction roller ball bearings long stroke pump carb readily available parts l8x8TopfightM.8l85rPm 20 x 6 Zinger8036 rpm 24 x 8 Zinger 30 rpm stock VS parts 54sPeoPleof now selling low cost continuous-run littlebreather strip T-fitting just $5 RC Soaring/Blakesleepumps work great onlymore set obviously way go Continued page 188drawback its too serious thatCST has convenient toll free order pull maximum six inches ofnumber l-800-338-lCST Aerospaces mercury Six inches shouldpump called E-Z Vac goes E-Z use white foam anyway whenLam ACPs excellent epoxy laminating using blue foam cores much vacuumresin sells $6500 itself probably adequate work$7500 both plus $400 S&H set CST calls pump Mighty Mini-similar CSTs ACP set also Vac sells $6995 itself andincludes very neat hose fitting $7495 both plus $600 S&H set asattaches flat surface bag plus shown photo includes threetwo Quick-Seal clips below yards nylon bagging tube sealant ntinued page 192 opper iant Semi-Scale Sportster reminiscent 1930s Heath midwing homebuilt Spans 85-in 90 power 2 plan sheets No 704 Arrow$500 CL Stunt Wing inspired 1960s-vintage Bill Netzeband designs new PAW 049 diesel engine Spans 298-in No 705 Zenith$200 FF Hand Launch Glider serious competition Wing DT spans 18-in 35-38-gr $375 No 193Selleito CL Stunt model lMcDonaIdl winner 1976 1999 1982 FAI World Champs$ No 262crashmaster CL crash-proof trainer two sizes15/30 35/40 power No 3101930 Ftet Biplane AC Sport Scale 35/40 4-channel Wingspan 56-in 4-scale Two plan sheets$625 Mo 314Drake II AC Ken Willards flying boat 3channel 15 power Fly land wofi removable gearS375 No 326Taylor cub AC Don Sinus Schoolyard-Scale tar 049 power 2-3 channel Spans 50-inS359 No 332Zephyr AC small 2-channel Glider hand-launch tow thermal slope soanog$290 No 368LaSer 200 AC Sport Scale replica championOhip Aerobatic flier 40 power 4-5 chanoel Two plan sheets$1075 No 447twA MIsS America AC Old Timer Texaco model 049 910w 2 chaneels$650 No 4604-40 AC shoolder-wiog Sport flier 4-cycle 40 power 4 channels$650 No 539Simltar slow-MotIon 15 AC Tailless flying wing 15 engines spans 60 ones 3-cb AC$359 No 578Schweizer 1-260 AC Quarter-scale Sailplane spans 125 Two plan sheets$1475 6No 581Gee Bee Model Y AC Golden Age Racer spano 72 scale 60 power Three plan sheets$ 1175 0No 588Marish AC Slope-Soaring Sailplane spans 41 uses 2 AC channels$ 425 No 598coronae 150 AC-Assist Old-Timer enlarged 150% opens 7210 uses 40-size 4-strokel 30-size 2-stroke$ 950 cjNo 603Sparrow Hawk P-30 FF Competition robber-power plase won 97 Nuts Spans 30 in$ 225 No 626Sweepee AC Sport/Paltem canards forward-swept wing spons 64 in. uses 40 power 2 plan sheet SI$ 1300 No 626Prime cue AC Sport/Aembatic plane spans 99 in. sans Quadra 35140-size power Two plan sheetsS 1390 --No 630OrigInal Fly Baby AC Old-Timer spans 72 in. uses 19125 2-cycle 49 4-cycle power 12 plan sheetsl$ 1150 0CNo 644Bellanca columbIa AC Schoolyard Scale 2 AC channels hA engioe Wingspan 46 ur$ 575 No 646Winter Hawk FF Rubber-power Coupe dI-liver compotfilan plane spano 47 inS 375 CO anNo 65047/60 RC Special AC Aerobatic sport plane 49 power spans 61 3 plan sheets$ 1975 05 0 No 602Der Pledermauw AC Low-wing sport plane 20/25 power spons 55 in$ 675 o -No 6541amecat AC Trainer/sportoter styled like F14 spans 66 49/61 power Four plan sheets$ 1525 .No 667Super Squire AC Troiner 35/40 2-stroke 53 4-stroke power spans 56/a in$ 759 0 0No 659Boom Box FF Wakefield Robber compettion plane spans 54 in$ 490 0No 601Embry-Omatic FF Embryo Endurasce mbber-power plane spans 20 inS 290 No 663Pee Patch AC Sportster spans 69 uses 49150 4-stroke power 2 plan sheets$ 990 E 0No 664Stuka Stunt CL Stutter semiscale spans 37/a inS 590 No 605conacierittous Oblector FF Moloihill Rubber competition pfane spots 59 flat$ 575 503 66 s AC Sportoter spans 49 uses hot 29132 power 12 plan sheets 75 No 607AT-6 CL Semiocale profile StonIer 35/40 power spans 47 inS 575 6 ENo 609Roto Raven AC Sailplane unique twist-wing control Spons 76-ie Requires elevon nasing$ 650 z CUNo 671cessna cardInal FF Reminder Scale sport flier power spans 39-isS 575 INo 672Krackerjac AC updated version pioneer sport plane spans 74-in two plan sheetsS 1375 No 674 Krumpier AC 975-powered Electric semi-scale bi-winger spoan $ 575 oS 225 No 675BOF-1 FF twin-tailed sport filer Coo 02 Pee Wee engine spans 25-in No 676HIlIner AC twin-electric high-wing Sport ship denigned H6ine lmp-39 motor Has tricycle gear spans 40in.$ 406 -C-No 677ThunderbIrd CL Stutter 29-35 power Two plan sheets drawn original 1982 Veca Spans 54 in$ 975 eNo 676Sean Box FF Woof Coast Bostonian Outdoor design Spono 10//a in$ 159 -o 05oNo 679BIg Blngot Large AC Sportster sporo 95 120-24 power Two plan sheets$ 1790 SNo 6011969 Beds BD-4 FF Rubber Scale modni spans 18 in$ 325 No 682B T VIntage Trainer AC Reminder-Scala Sportster 20-size engises Spans 47% Two plan sheets$ 1156 No 684Staggerwlng Beech 3-Channel RC Schoolyard-Scale to-wieg Sportsler 049 power Spans 32-in$ 375 50lbNo 685Akro-Bat CL Stunner high-performance 049 engines Spons 32-in$ 230 E bNo 686Fotler AC Pattens-typa sport plane 2- 4-cycle power Spans 65-in$ 725 0 688 alth GlIder PP robberband-launched toam/baise Canard Catapufi/Steath Obder combo Spaes 9-in 60 No 689Thomas Morse Scout 54C AC 4-scale biplane 90 power Spaos 63-in 3 plaa oheets$ 1975 IDNo 690p-62B TwIn Muateng CL Profile Sportoter twin MVVS 25 diesels Spans 48-in 2 plari sheets$ 1050 C 0No 6911927 NL2 FF Scale model Polish bomehoifi tar 8-8 watt motor mkber 902 Spans 29-re$ 225 0No 6923 Meter Scooter AC High Performonce Sailplane Spons 118-in 2 plan sheets$ 1159 693csrdlnal classic CL Sport Stunter 35 power Spuos 50-in$ 575 CNo 694AIrmaster AC Canard Sportoter lnr two 40 push-pull engines ar 60 pusher tractor Spans 66-in 2 plan sheets 5 1475 -0No 695Spirit St Louis CL Scale replica far 1525 power Spans 46-in$ 575 0No 696Pole cat FF P-30 Class AMA Senior record holder Spans 31-in $ 225 No 697Tlgerkltten 8 AC High-performance Sport Aembatic design 05/15 Coba9 electric power Spans 54-in 0one plan sheet plus two-page inotrocton booklet$ 1990 -~No 696NovaClone CL One-denigo malti-enent Sport filer 35 power Spans 42-rn$ 490 No 699 Top cat 90L-1 FF Robber PAl Indoor Stick Gliderhot der AMA Cat PlO & Stich Naimnal Records Spans 13125-in oTwo plan sheets$ 390 o 700 Randys DIme AC economical versatile Sport Trainer ideal 10 power Weigirs 33-az spans 50-in$ 575 0 115 No 701 Jumpln Gso AC high-performance Sportster designed fun fly events Weighs 3-9 spans 48-la 40-45 power $ 725 No 702 Nelnkel NE 18 PP Scale model 1924 German monoplane Hiline Mlei-6 geared elecfdc motor Spans 28-in 290 005~ v32][b-1-10-1-10]] C5 rcle numbers plans wish order best handling please include re- quests payment some other service plans order i 3262310314326332386447 460539578581588598603626 00 ua O628630644646650652654657 cs coo659661663664665666667669 ZZO671672674675676677678679 E681682684685686688689690 691692693694695696697698 0 qPlan 699700701702703704705 • price includes first class postage US delivery Air Mail over 300 miles Far orders nan-US address e add $258 far AIr Mall asia sand handlln Ian check money order payable US funds drawn US bank Model Aviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery 0 Please print carefullyEnclosed $ NAME_________________________ AMA No _________ _ ET CITY LTATh ZIP________ Plans orders must received AMA no later December 1 Model Aviation Christmas delivery again set best buy ACPs address Box 16621 Irvine CA 92714 Phone 714/250-1107 CSTs Gail Gewain sent Mighty Mini Vac set try must say after using bag wood veneer skins Thermal Eagle wings Im completely sold Just plug let humm away Being belt suspenders type took vacuum gauge off other pump make sure Mini-Vac pulling okay finger over hose indeed pulled six inches mercury connected bag must have pinhole leak because reading stayed bit under five inches good enough though As long bagging few other items worth mentioning CST has 35 ounce unidirectional carbon fiber fabric comes 10 inches wide sells $1200 per lineal yard beautifully thin 5 thousandths thick material perfect wings layer two lightweight glass top George Span Aerospace just introduced reusable Quick-Seal clips used seal ends vacuum bag tubes consist 743 inch solid plastic rod fits snugly inside fairly rigid Ushaped plastic channel 20 inches long just place bag over channel push rod channel thus forming easy doand undoseal $350 Another new item George pair pumps E-Z Lam preset dispense ounce per stroke part resin e per stroke part B hardener will blessing baggers dont have precision scale weighing epoxy New League Silent Flight Address LSF President Bob Steele communicated LSF now has new permanent mailing address 10173 St Joe Road Ft Wayne IN 46835 old Winfield IL PO box wrn continue forward mail year until August 1992 Bob says mail turnaround time will back 7 14 days used Members may phone Bob 219/485-1145 Mankato Model Soaring Society newly formed club North Mankato Minnesota Bob Botha driving force says has permission use nice 40-acre sod farm flying field Interested sailplaners electrics welcome too area should call Bob 507/345-1832 evenings weekends Southwest Winter Soaring Contest will again sponsored Central Arizona Soaring League held Phoenix February 1 2 will two one-day contests flying modified Triathalon precision duration tasks Sounds like good place schedule winter break info write Chuck Wehofer PO Box 2472 Chandler AZ 852gEli
Edition: Model Aviation - 1991/12
Page Numbers: 48, 49, 183, 184, 185, 186, 188, 190, 192
THE MODI 900 Greco Technologies Youre probably asking Whats Modi 900 what Greco Technologies honest can pass about either time material gleaned press release phone conversation gliders principal designer Greg Chun Greg works Greco Engineering division Greco Technologies told company new model manufacturing wants enter business adjunct engineering consulting work rendering shows attractive Modi Its specifications modem up-to-date thats about know Greg said have gone through three design versions examples final design about late August placed hands experienced fliers evaluation Entering model glider market especially high end isnt simple proposition Before offering glider sale design must thoroughly tested Construction details must proven workmanship shown high quality Most important gliders performance should compare well competition time read Greg says Modi will flying Southern California contest circuit should reporting real life results soon Until would seem best treat following press release news item heres Readers Digest version Greco press release Greco Technologies excited announce arrival Modi 900 open-class competition sailplane has 50-inch fiberglass Kevlar fuselage RG15 triple-taper-cut wings made out extruded blue foam glass lots uniweb carbon fiber cloth development unique sailplane undertaken Greco engineering technical consulting firm Pasadena its staff aerospace engineers sailplane enthusiasts allowed insight both technical aspects aerodynamics wants needs hobbyist Modi 900 now off drawing board production available public Modi 900 sets itself apart competition its strength durability layer plane designed built strength versus weight considerations mind wings start PRB blue foam base overlaid full layer top bottom 45 oz carbon fiber cloth plus second layer cloth top 10 inches bottom 15 inches root wing strength encased 14 oz fiberglass 48 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia CO 80135 Dan Troxell Laguna Hills CA bought fuselage Trom Holana Kern Germany made own wings half-scale Grobe 103 Aero two-place glider will featured January Artists rendering beautiful Modi 900 Greco Technologies ship will come largely pre-built ARF Designed thermal multitask competition has 1 1Oin wingspan 903 sqln weight 70 80 ounces Chris Aho left holds dad craigs protoiype RnInum y uuuuIu De signs Anthem updated improved Lovesong Right winners 1991 Southwest contest Phoenix L-R front Ian Dou glas John Mangino beck Steve George Ed Holder both Leg ends Jim McCarthy Comet 89T 1992 Southwest Feb ruary will bigger belier yet cloth laminating epoxy root ribs sub ribs 14-in plywood laminated strips carbon fiber ensure endurance wing joiner rod -in carbon fiber rod encased brass tube giving tensile strength steel fraction weight Aluminum shaft hinges flaps ailerons included ensure rigidity under high pressures fuselage constructed Kevlar fiberglass Under testing Modi 900s wings withstood pressures approximately 375 foot pounds before delamination Other vital statistics include Span 110 wing 50-in fuse wing area 9026 sq weight 70-79 oz wing loading 110 oz/sq ft aspect ratio 1311 airfoils RG15 wing 5D8020 stabilizer kit comes two forms pre bagged Almost-Ready-to-Fly pre bagged kit comes wings rough stage just out bag kit takes 30 80 hours complete retails $595 ARF kit comes hardware installed finished wings takes 10 15 hours complete radio installation retails $895 information catalog contact Greco Technologies PO Box Anthem Dodgson Designs new name pedigree going back 1972 Bob Dodgson began manufacturing aileron glider kits Bob introduced 134-inch-span Windsong 1982 few years ago strengthened structure cope modern exuberant flying styles renamed Lovesong Songs have probably popular thermal competition ships during period Continued page 183 December 1991 49 10 South Pasadena CA 91031 call 1800-34-GRECO Ext 23 Feather Cut hot wire foam Cutter gives builders easy-to-do Pro quality results small low-cost vacuum pumps answer bag gers prayers Mighty Mini-Vac R Composite Structures Technology Nylon bag material breather felt sealant part system whole thing available CST $7495 Mid-Columbia/Blakeslee Continued page 179 heard planes touch Yeah glad Rich such smooth flier didnt flinch RC Soaring/Blakeslee Continued page 49 around country Bob says hes sold several thousand kits Now Bob has updated Song design based experience latest kit Saber Basically Anthem Song 5D7037 airfoil obechi sheeting flying surfaces aileron flap servos wings 48-inch bullet proof wing spar %-in joiner rod Bob says newsletter Second Wind prefer larger glider scale-like profile easy see great distances want added L/D long span high aspect ratio wing nothing available can match Anthem limited time will continue offer Lovesong have computer radio prefer slower flying yet high-performance tripped Eppler 214 airfoil sure get Lovesong theyre still production suggest wait gone AVIATION CHfISTMAS GIFTS SALE r VALUABLE COUPON ngall paper CORSAIR Procut/colored W/MOTOR $4 2 for- $6 ___ ~Precolored GIFT glder-sI ers & envelopes j2 $3 24 $5j CATALOG 1 3000 planes $18______ w/lst order- over PAPEII AIRPLANE club $1500$251 PAPER AIRPLANES II 433 NIHOA STREET KAHULUI HI 96732 USA ISeI uVoo will gone Prices Anthem Base kit $279 kit pre-built spars $345 kit pre-sheeted wings stabs rudder limited availabilitycheck before ordering $430 add $12 UPS shipping kits Write Dodgson Designs 21230 Damson Road Bothell WA 98021 Phone 206/776-8067 Monday-Friday 10 am 5 pm Pacific time Bobs Second Wind newsletter good way keep touch whats happening Dodgson Designs About 700 customers subscribe Two issues per year spring fall published cost modest $200 $300 Canadians An Anthem builder Craig Aho Mountlake Terrace near Seattle Craig called sing Anthems praises kind enough send photo letter picture Anthem promised son Chris holding Sorry poor quality photo Anthem fantastic flier using 5D7037 airfoil new spar system roll rate impressive speed range wide good top end aircraft still has best light lift qualitiesas did its predecessor Lovesong Ive hung up Falcon 880 now Ive got aircraft built prototype 60 hours dee 6rckoo/ Learn fly ottr planes private field Five Dr 6 day course $350 Open year round Send SASE Complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 scratch built wood parts builds fast large enough see easily has classic Song look Bob now offering new option Anthem Saber completely pre-sheeted flying surfaces additional $150 ATRCS Version 30 u p-grade brought guys Control Systems Laboratories Gene Englegau Tom Mroz Youll recall introduced ATRCS conversion Airtronics Module transmitter summer 1988 Shortly thereafter Airtronics contracted CSL provide similar hardware software very popular Vision transmitter CSLs latest announcement Now new improved software revision plus improved components can installed December 1991 183 ~IEKINO STEPPING INTO THE FUTURE OF R/C THE NEWEST IN ELECTRIC FUGHT PRODUCTS Units Feature Surface Mount Technology Light Weight Ultra-Slim Advanced Linear Design Low Current Draw lOMA High Power MOSFET Design 118 Cells 24 Volts 40 size motors Electronic Speed Controller ESC Electronic throw ad pat pend ESC 100120 amp coot 300 amp surge$5995 Electronic Switch ESW Fully adi reversihle point indicator ESW 23030 amp coot 75 amp surge$2995 ESW 26060 amp coot 150 amp surge$3995 ESW212O120 amp coot 300 amp surgeS5995 Please specify receiver coon ordering prod ucts Guaranteen 6 months trom purchase dote Call write details TREK IND regon Ave ord NY 11763 516 758-8170 LIGHTING SYSTEMS THE ORIGINALS. Still Best *RED 01Programmable Flashing Navigation Lights 9V$2495 #RED 02Strobe Light Ad] Rate 9V$1995 *RED 03Landing Lights 48V$3995 *RED 04Mars Rotating Beacon Ad] Rate 9 V$1995 #RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 #RED 23Real Strobe Light true zenon strobe 3V$2995 S SEE YOUR DEALER 0 SEND STAMPED ENVELOPE FOR RAM INFO unavaIlable locally send check money order full credit card info coat Item plus $400 $5 00 foreign immediate shipment Include full addresa U PS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 Near AiRES MOLLS METALS 500KS PRECOS5ON INSTRUMENTS ~COMPLETE COTOLOC $200 TDDLS CD C4M1U RoO OTs items sPr~iB2555ssss * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No 202 Air Cleaner Fine *275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc po Box3786 Cones Mchganaole Add $250 sh pp op M ch gao ea dents add 4% ua eu taxI 11376 Ridgeway RoadKensington OH 44427216 223-1950 DrtObatiC span $17995 span -$18995 Sportobatirs M 84span92span-S1to 84 Sportobatics 10 lbs ideal 90 2C 120 4C engines 92 versions 13 lbs perfect ST2000-3000 equivalent engines Both versions build quickly lite-ply & balsa fuselage & tail & foam wing Sportobatics fill need hotdog show-off sport planes Knife-edge takeoffs flat spins snap rolls rtobatics will anything can yet land like strainer Super Canopy Ohio CS-equipped 5P7 Vision 85P transmitters up-grade consists following features ATRCS 5P7 Module Transmitters Replaces Micro-processor improved versionallowing larger sophisticated programs Replaces setup memory chips larger capacity setdoubles setup memory 8 setups Up-grades ATRCS transmitters include new featuresAdds PCM fail safeAdds aircraft naming setup Vision 85P Transmitters above plus additional receiver capabilityFutaba FM-PPM 4-8 channels Both Vision 75P ATRCS transmitters will work RCD FM-PPM 4-8 channel receivers JR FM-PPM 4-8 channel receivers past would have write down setup information since $25995 Giant 99 x 16 Vinyl Clad Nylon Yellow Blue White Two-Color Combinations 8 rugged tube frame 10 easy-out stesi tent stakes nylon guy cords Folds neat hesvy-duty cardboard box goes up quickly complete instructions Optional name city state printed ends $6000 replacing setup memory Now due improvements methods no longer have will automatically save setup information generate paper hard copy restore setups new memory chips hard copy will sent back along transmitter records price version 30 up-grade just $9500 plus $400 UPS ground $1000 UPS blue shipping CA residents need add local sales tax Payment check money order Visa Mastercard Send ATRCS transmitter less antenna battery Control Systems Labs 238 So Hillview Dr Milpitas CA 95035 Phone 408/946-4142 Feather Cut Hot Wire Foam Wing Machine new foam wing cutter produced Tekoa Center Design company better known us LA area father/son team Roger Blayne Chastain As read last month Terry Edmonds Nationals report Blayne Senior age group flier placed first both Standard Unlimited class fact Unlimited class beat Open age winner Brian Agnew point Roger called back asked Id like try machine said betI want cut some cores anyway Roger thought Id suitable test subject because have never cut cores before course Ive seen done Julian Tamezs Channel Productions foam cutting video person other occasions Ive always built kits never cut own cores machine arrived very sturdy 55inch-long mailing tube small parts neatly individually packaged long poly bag whole thing went together about hour Its mainly just matter following easy instructions looking diagrams threading screws nuts together two main parts machine made blue anodized extruded aluminum right off bat know Roger has put lot effort project larger extrusion called body 51 inches long designed mounted edge work bench held place tape easy removal taped edge 24-inch-wide hollow core door sets table As can see photo mounted body two horizontal two vertical rollers four rollers can slide back forth tracks fixed place wing nuts rollers adjust machine 184 Model Aviation OHIO SUPERSTAR PRODUCTS INC ADAPTOR THROW-A-WAY YOUR COLiETS CHUCK & WRENCH USE OUR 0 TO jCHUCK DREMEL POWER TOOLS RUNS 100% TRUE & ONCENTRIC AT FULL RPM NO 501 ADAPTOR ESS cHUCK $1895 IDREMEL 850395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POUSHED STEEL USED FOR CUTTING PLASTIC WOOD SOFT METALS LEXAN PLEXIGLASS & ETC AVAILABLE IN 006 008 010 012 014 016 018020023 025 V028 032ThICKNESS NO 502ARBOR$800 OUR IDE DIAMETER @ $675 EA NO 503 014 X 114 SAW $800 SAWS ONLY WORK WITH OUR ARBOR MICRO SELFsTARTING TORCH No need Ifint matches Just press Piezo Self-Starting button -for micro size adjustable flame barns 237h up 3 hours Operates standard cigarette -hghter butane refiflabfe Tank fits comfortably palm hand made high-impact rubber allows safe non slip comfortable grip Sapplied can butane MT770 Blow Torctt $3500 ne butane MT771 Butane 5 oz0600 EASTERN TOOL& SUPPLY CO I49GRANDST -NYC NY 10013 WRITE FOR CATALOG$300 ORDERS 212-925-1006 WHEN ORDERING- PPD ADO $300 OFFICE 212-226-3749 CODADO$500FAX212-925-1010 cut cores up 50 inches long almost width taper rollers guide two very flexible 22 gauge power wires connect hot cutting wire alligator clips other ends wires connect low voltage power source power wires serve heat cutting wire also pull hot wire through foam block smaller extrusion called control arm 48 inches long pivoted left end body has two purposes compensate difference two power wires travel cutting tapered cores provide pull power wires Tapered cores tricky because cores root 10 inches tip nine inches power wire root travels pull length inch exactlyexplained below the tip control arm has graduated scale its face reads zero 100 use set cuts taper ratio ie tip/root pull lengths root end power wire always attached 100 tip wire attached number calculated pull power wires control arm carries 16-ounce lead weight mounted near middle gravity provides motive force hot wire mounted bow 27-inch length 3A inch x 2 inch wood 10-inch-long diameter music wire legs end wrap 18 thousandths T-370 cutting wire around leg bend legs together specified distance wrap around other leg bend legs provides proper tension wire Roger says cutting wire special neither ni-chrome nor stainless steel leader wire standard bow will cut cores up about 26 inches long might think kinda short designers going Schuemann planform type wing has multiple breaks leading edge need two three sections core per wing panel Since foam comes 24-inch-wide pieces its easy economical design two-foot sections can make own longer bow picking up piece wood local lumber yard Roger will soon coming out new aluminum bows 28 40 52 inches long will have feature being foldable legs thus saving storage space Lets now quickly review three ways can cut cores hand gravity electric motor drive Guiding bow hand straightforward method However get good consistent cores youand perhaps helper other endneed practice steady nerves make constant speed cuts Electric motor powered cutters can quite sophisticated require lot rigging gears belts such important take experienced operator correctly regulate both December 1991 185 Funniest Amateur Video Ever R/C FOLLIES PRESENTS CraziestWackiest Funniest Model Airplane Wrecks Youll Ever See! Over 30 Minutes CRASH after CRASH after CRASH Flying off lake smashing ice What happens hand launch forget turn radio plane seaplane turn treeplane Rocket engine mounted Eindecker Four wrecked planes turned Twin flew just lot Bad flying much Dont miss one-of-a-kind exciting funny video offer youll ever see $1 995 plus $3 shipping handling HOLLAND SOUND SERVICES 1 Dunham Dr Dunmore PA 18512 phone 717-346-8742 VISA-MASTERCARD PA Orders add 6% sales tax speed cut heat wire Otherwise foam will burn excessively too hot/slow wire will drag too much too cold/fast As mentioned above Feather Cut machine gravity type cutter Its beauty simplicity set heat cutting proceeds automatically its own pacea feature well suited new users As said Im new game myself Feather Cut machine has couple novel features appear make work better other designs Ive seen feature sliding lead weights legs bow cutting airfoils bottom profile slide weights toward hot wire wire maintains good contact templates going downhill cutting top profile slide weights back wire has less downforce templates going uphill second related feature bow works horizontal position small tailwheel middle wood part bow allows roll across work surface during cutting old method operate bow vertically suspended springs rubber bands course another potential source adjustment error hardest part cutting foam cores making templates instructions Roger recommends second motion S Discover SECRET TO HASSLE-FREE CHARGING Dont miss perfect day because uncharged batteries amazingly simple AUTO-TRICKLE ADAPTER converts ALL overnight chargers FULLY AUTOMATIC TRICKLE CHARGERS Nothing else like Simply plug wall plug overnight chargers push button forget about batteries whole fleet will ready next day week month year Nothing solder connectors buy 100% solid slate device safely reduces chargers output pulse trickle after 16 hours Directly supports 1 3 chargers However powerful 120 Watt capacity easily HANDLES UP TO 30 CHARGERS Nothing else comes close convenience simplicity safety cost effectiveness T I1 E Hurry secret out Get AUTO-TRICKLE ADAPTER TODAY YOUR LOCAL HOBBY DEALER send $3995 5&H Directly Tejera Microsystems Engineering Inc 800 729-9210 PO nox 340608 Tampa Florida 33694 ADVANCED AERO PRODUCTS VS & Os SIMPASS 120 EXI4A5BT SYSTEMSrii 55 50155 toO sFoOUATO4 5555 HWnE5 W5 PATTERN MR5FT AND WINATS 551 ODvANCeD ASRO poosacos OTT 505 25-C 5450 T5 75553 554 954-3945 using Chuck Andersons Airfoil Plot Program draw full size airfoil profiles computer printer Chucks program $25 Address Box 305 Tullahoma TN 37388 Phone 615/4555788 glue printed airfoil plots horizontal grade Formica horizontal thicker vertical grade 3M No 77 spray adhesive cut out jig saw accurately sand polish surface hot wire rides Note need two paper plots per wing section because airfoils template made two parts matching pairs pairs cutting airfoils bottom profile other top type template must used Feather Cut machine because always cuts top surface template early days foam cutting templates same wing rib used two-piece templates have proven better kind core cutting because register work surface unwanted twists wont introduced sketches below show typical pair templates SD 8020 stabilizer section dashed lines indicate actual section chord spaces before after actual chord hot wire lead-in lead-out ffp7j.4t1 #A 3orT-l cur rIPiPLAT 4A r GuP operation pin sharpened pop rivets work fine bottom templates leading edge always cut first ends foam block must first pre-cut cores planform hand using hot wire bow using Formica triangles Continued page 188 186 Model Aviation Model ATAcxl works existing NiCd overnight C/10 chargers Yes works cordless power tools toys individual cell chargers ste THE WIREMASTER TM ndcrfcoler 4 different models wire bending tools offet Also available Alloy Stainless Aluminum Melric hardware Checkyour dealet first un available send business size SASE free catalog JCM COMPANY 114 washington Torr Dopt Waukogan IL 60085 Efficient wide tips thinner airfoil sections combine greater thrust noise suppresion Will out-perform wood & other plastics water sand & gravel runways Made strong 33% glass-filled nylon RPM rating 160K divided diameter inches 1/2A Series 55x4 55x45 6x35 6x3 6x4$ 99 GIF Series 7x4 7x6125 8x4 8x6135 9x4 9x5 9x6 9x8 95x6155 10x6 10x7 10x8.. 175 11x6 11x7 11x75 11x9195 K Series 12x6 12x8 285 13x6 13x8 385 14x6 14x8 495 15x8 15x10 545 665 16x6 16x8 Antique Series 10x5 11x6 12x6 13x6 14x7 16x7 225 245 335 435 545 715 See local hobby dealer Master Airserew propellers accessories Windsor Propeller Co 3219 Monier Circle Rancho Cordova CA 95742 57-6 AL guides Make sure templates resting squarely against perfectly flat work surface foam well weighted down make bottom cut replace bottom templates top ones top cut template pairs must have exactly matching pin holes replace bottom template top same holes foam used otherwise cuts will off Because bottom cut first core settles its bottom bed need compensate templates width wire-cut minimized hot wire cuts core about 10 thousandths undersize vacuum bag cores glass/carbon fiber undersize about right allow skin thickness Once templates made found using Feather Cutter piece cake Im type person Murphy mind because can usually find some way screw up time try something new machine worked beautifully right out box encountered no problems making perfect looking cores say highly unusual Just get everything set hot wire resting templates four rollers adjusted power wires attached hot wire control arm turn power supplyand away goes foam makes very satisfying sizzling noise hot wire slices through about inch per minute need sit watch go catching bow wire comes out trailing edge can use low voltage up 28 volts power supply like Variac adjustable transformer opted get Rogers Thermal Generator because no-fuss operation unit makes perfect companion Feather Cutter Roger says has fool-proof wire temperature control certainly found true simply adjust knob center dial needle Thermal Generator senses resistance whatever length wire using automatically supplies proper amount power heat wire about 2122250 Simplicity itselfl & MODEL BUILDING 7SERVICE RADIO CONTROL PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 128 wATcI4oGuE ROAD 8 SEAIEN SAM 8 NY 10314 As foam Roger recommends using Dow PRB Plaster Ready Board blue material same blue Dow Square Edge insulating foam PRB has density two pounds per cubic foot rated 25 psi has open aggressive cell structure Roger says want build killer wing consider Dow HI-l 15 High Load board rated 115 psi six lb/cu ft difficult locate though Finally lets get back tapered core paradox wing root 10 inches tip nine inches youd think taper ratio set control arm would 900 no standard procedure Continued page 190 0 0 0 0 j 0 0 0 0 Ousrlerffiaster Sport lips 73 Span 035 similar $21 build FUNK 385-C$25i~ 1/4 scale 108' Span 12 four stroke scale 84 Span 61 four otroke$21 o photo reduced igaS KINNER SPORTITER K 4 scale 117 Span 035 S cylinder $25 ylinder radial scale 76 Span 61 four stroke $1 o reduced DAVIS 01K scale 905 Span 035 5 cylinder radialp~pPs r/6 scale 603 Span 45 four stroke$1 500 photo reduced STITS PLAYHOY$25I /a scale 88 opus 035 larger 188 Model Aviation Leader Small Airfoil Technology MASIE 11 AHISCREW TAYLOFICRAFT q in 12 $250 61 DGAO Piano O0riOgl PHOTO DOCUMENTATION PACKS uvu"- nrr Scule Piano Alt PLANS NOLLE5 OOIPPFS P5 C cdli Insirocion Sonidet e.money Order COOs clip power wires hot wire inch either end foam block root end power wire actually travels little 10 inches tip end wire travels little less nine inches determine actual lengths travel easiest way place pre shaped foam block piece paper project end inch straight edge pencil measure projected ends Feather Cut machine sells $13950 plus $850 S&H Thermal Generator $9450 plus $450 S&H Both may ordered Tekoa Center Design 3219 Canyon Lake Drive Hollywood CA 90068 Phone/Fax 213/469-5584 New Low-Cost Vacuum Pumps piece April column about making vacuum pump refrigerator compressor generated lot interest knowing what now wouldnt have bothered making Both Composite Structures Technology Aerospace Composite Products WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries fh chargers need pacd6aget wet Cell & Cycler-Chargec *23996 Fits 48V RX 96V Tx p00ll5Plus $750 S&HaGeGelled Cell Others available write calle erieS Regular Model. 96 field kit sinaiPlus $500 P&H electriC boat batteriesSpecify 612 24V 8qnL Canton II spoil winch large boat andPlan $600 P&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssE Ion OlloineailooPO Box 221 605ga-5g24126316V Bill Eff get * says Only Piano Pattetott Sets give anvorted designs want have selected best classic designs time foe pvc choose tcer patterns tot part ate impottast eaclusice feature Curtiss HAWK PlC 9400 wingspan68 length 2268 sq snieg aeon Fnr 13 23 ClO engines 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FOrt3102301 0 pogroac weOe Oppor rOiOsliessnCIOO wirgepan 4 COnnoni nic g Overall Leogro itied Scale Liar eanom OrtOii 2072 sy wing grea a Wirg Panels OuatOt Scala 1/3 Scale MONOCOUPE NA Wingspan 92 Onerall Length - 2100 sq Wing Area Fnr 29 en 38 CID hegines RC3S-4 Bill Ellinget Foonding Mewbnt AMA NFF5 Hall nt Fewer Pricee tor complete plans sub asnemclv S detailed parts hOts PLEASE ADD g3gO shipping wailing tobsl sew 1991 Plan Seer OrvOhere Irafriodasle ovar firel orderli WE TECHNICAL SERVICES RO Box 420144-S Atlanta GA 30342 190 Model Aviation No NITRo Runs 5% Gets about 1 minute ounce fuel OPS MAxI 30 18 Statically dynamically balanced 5 intake ports shaft induction roller ball bearings long stroke pump carb readily available parts l8x8TopfightM.8l85rPm 20 x 6 Zinger8036 rpm 24 x 8 Zinger 30 rpm stock VS parts 54sPeoPleof now selling low cost continuous-run littlebreather strip T-fitting just $5 RC Soaring/Blakesleepumps work great onlymore set obviously way go Continued page 188drawback its too serious thatCST has convenient toll free order pull maximum six inches ofnumber l-800-338-lCST Aerospaces mercury Six inches shouldpump called E-Z Vac goes E-Z use white foam anyway whenLam ACPs excellent epoxy laminating using blue foam cores much vacuumresin sells $6500 itself probably adequate work$7500 both plus $400 S&H set CST calls pump Mighty Mini-similar CSTs ACP set also Vac sells $6995 itself andincludes very neat hose fitting $7495 both plus $600 S&H set asattaches flat surface bag plus shown photo includes threetwo Quick-Seal clips below yards nylon bagging tube sealant ntinued page 192 opper iant Semi-Scale Sportster reminiscent 1930s Heath midwing homebuilt Spans 85-in 90 power 2 plan sheets No 704 Arrow$500 CL Stunt Wing inspired 1960s-vintage Bill Netzeband designs new PAW 049 diesel engine Spans 298-in No 705 Zenith$200 FF Hand Launch Glider serious competition Wing DT spans 18-in 35-38-gr $375 No 193Selleito CL Stunt model lMcDonaIdl winner 1976 1999 1982 FAI World Champs$ No 262crashmaster CL crash-proof trainer two sizes15/30 35/40 power No 3101930 Ftet Biplane AC Sport Scale 35/40 4-channel Wingspan 56-in 4-scale Two plan sheets$625 Mo 314Drake II AC Ken Willards flying boat 3channel 15 power Fly land wofi removable gearS375 No 326Taylor cub AC Don Sinus Schoolyard-Scale tar 049 power 2-3 channel Spans 50-inS359 No 332Zephyr AC small 2-channel Glider hand-launch tow thermal slope soanog$290 No 368LaSer 200 AC Sport Scale replica championOhip Aerobatic flier 40 power 4-5 chanoel Two plan sheets$1075 No 447twA MIsS America AC Old Timer Texaco model 049 910w 2 chaneels$650 No 4604-40 AC shoolder-wiog Sport flier 4-cycle 40 power 4 channels$650 No 539Simltar slow-MotIon 15 AC Tailless flying wing 15 engines spans 60 ones 3-cb AC$359 No 578Schweizer 1-260 AC Quarter-scale Sailplane spans 125 Two plan sheets$1475 6No 581Gee Bee Model Y AC Golden Age Racer spano 72 scale 60 power Three plan sheets$ 1175 0No 588Marish AC Slope-Soaring Sailplane spans 41 uses 2 AC channels$ 425 No 598coronae 150 AC-Assist Old-Timer enlarged 150% opens 7210 uses 40-size 4-strokel 30-size 2-stroke$ 950 cjNo 603Sparrow Hawk P-30 FF Competition robber-power plase won 97 Nuts Spans 30 in$ 225 No 626Sweepee AC Sport/Paltem canards forward-swept wing spons 64 in. uses 40 power 2 plan sheet SI$ 1300 No 626Prime cue AC Sport/Aembatic plane spans 99 in. sans Quadra 35140-size power Two plan sheetsS 1390 --No 630OrigInal Fly Baby AC Old-Timer spans 72 in. uses 19125 2-cycle 49 4-cycle power 12 plan sheetsl$ 1150 0CNo 644Bellanca columbIa AC Schoolyard Scale 2 AC channels hA engioe Wingspan 46 ur$ 575 No 646Winter Hawk FF Rubber-power Coupe dI-liver compotfilan plane spano 47 inS 375 CO anNo 65047/60 RC Special AC Aerobatic sport plane 49 power spans 61 3 plan sheets$ 1975 05 0 No 602Der Pledermauw AC Low-wing sport plane 20/25 power spons 55 in$ 675 o -No 6541amecat AC Trainer/sportoter styled like F14 spans 66 49/61 power Four plan sheets$ 1525 .No 667Super Squire AC Troiner 35/40 2-stroke 53 4-stroke power spans 56/a in$ 759 0 0No 659Boom Box FF Wakefield Robber compettion plane spans 54 in$ 490 0No 601Embry-Omatic FF Embryo Endurasce mbber-power plane spans 20 inS 290 No 663Pee Patch AC Sportster spans 69 uses 49150 4-stroke power 2 plan sheets$ 990 E 0No 664Stuka Stunt CL Stutter semiscale spans 37/a inS 590 No 605conacierittous Oblector FF Moloihill Rubber competition pfane spots 59 flat$ 575 503 66 s AC Sportoter spans 49 uses hot 29132 power 12 plan sheets 75 No 607AT-6 CL Semiocale profile StonIer 35/40 power spans 47 inS 575 6 ENo 609Roto Raven AC Sailplane unique twist-wing control Spons 76-ie Requires elevon nasing$ 650 z CUNo 671cessna cardInal FF Reminder Scale sport flier power spans 39-isS 575 INo 672Krackerjac AC updated version pioneer sport plane spans 74-in two plan sheetsS 1375 No 674 Krumpier AC 975-powered Electric semi-scale bi-winger spoan $ 575 oS 225 No 675BOF-1 FF twin-tailed sport filer Coo 02 Pee Wee engine spans 25-in No 676HIlIner AC twin-electric high-wing Sport ship denigned H6ine lmp-39 motor Has tricycle gear spans 40in.$ 406 -C-No 677ThunderbIrd CL Stutter 29-35 power Two plan sheets drawn original 1982 Veca Spans 54 in$ 975 eNo 676Sean Box FF Woof Coast Bostonian Outdoor design Spono 10//a in$ 159 -o 05oNo 679BIg Blngot Large AC Sportster sporo 95 120-24 power Two plan sheets$ 1790 SNo 6011969 Beds BD-4 FF Rubber Scale modni spans 18 in$ 325 No 682B T VIntage Trainer AC Reminder-Scala Sportster 20-size engises Spans 47% Two plan sheets$ 1156 No 684Staggerwlng Beech 3-Channel RC Schoolyard-Scale to-wieg Sportsler 049 power Spans 32-in$ 375 50lbNo 685Akro-Bat CL Stunner high-performance 049 engines Spons 32-in$ 230 E bNo 686Fotler AC Pattens-typa sport plane 2- 4-cycle power Spans 65-in$ 725 0 688 alth GlIder PP robberband-launched toam/baise Canard Catapufi/Steath Obder combo Spaes 9-in 60 No 689Thomas Morse Scout 54C AC 4-scale biplane 90 power Spaos 63-in 3 plaa oheets$ 1975 IDNo 690p-62B TwIn Muateng CL Profile Sportoter twin MVVS 25 diesels Spans 48-in 2 plari sheets$ 1050 C 0No 6911927 NL2 FF Scale model Polish bomehoifi tar 8-8 watt motor mkber 902 Spans 29-re$ 225 0No 6923 Meter Scooter AC High Performonce Sailplane Spons 118-in 2 plan sheets$ 1159 693csrdlnal classic CL Sport Stunter 35 power Spuos 50-in$ 575 CNo 694AIrmaster AC Canard Sportoter lnr two 40 push-pull engines ar 60 pusher tractor Spans 66-in 2 plan sheets 5 1475 -0No 695Spirit St Louis CL Scale replica far 1525 power Spans 46-in$ 575 0No 696Pole cat FF P-30 Class AMA Senior record holder Spans 31-in $ 225 No 697Tlgerkltten 8 AC High-performance Sport Aembatic design 05/15 Coba9 electric power Spans 54-in 0one plan sheet plus two-page inotrocton booklet$ 1990 -~No 696NovaClone CL One-denigo malti-enent Sport filer 35 power Spans 42-rn$ 490 No 699 Top cat 90L-1 FF Robber PAl Indoor Stick Gliderhot der AMA Cat PlO & Stich Naimnal Records Spans 13125-in oTwo plan sheets$ 390 o 700 Randys DIme AC economical versatile Sport Trainer ideal 10 power Weigirs 33-az spans 50-in$ 575 0 115 No 701 Jumpln Gso AC high-performance Sportster designed fun fly events Weighs 3-9 spans 48-la 40-45 power $ 725 No 702 Nelnkel NE 18 PP Scale model 1924 German monoplane Hiline Mlei-6 geared elecfdc motor Spans 28-in 290 005~ v32][b-1-10-1-10]] C5 rcle numbers plans wish order best handling please include re- quests payment some other service plans order i 3262310314326332386447 460539578581588598603626 00 ua O628630644646650652654657 cs coo659661663664665666667669 ZZO671672674675676677678679 E681682684685686688689690 691692693694695696697698 0 qPlan 699700701702703704705 • price includes first class postage US delivery Air Mail over 300 miles Far orders nan-US address e add $258 far AIr Mall asia sand handlln Ian check money order payable US funds drawn US bank Model Aviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery 0 Please print carefullyEnclosed $ NAME_________________________ AMA No _________ _ ET CITY LTATh ZIP________ Plans orders must received AMA no later December 1 Model Aviation Christmas delivery again set best buy ACPs address Box 16621 Irvine CA 92714 Phone 714/250-1107 CSTs Gail Gewain sent Mighty Mini Vac set try must say after using bag wood veneer skins Thermal Eagle wings Im completely sold Just plug let humm away Being belt suspenders type took vacuum gauge off other pump make sure Mini-Vac pulling okay finger over hose indeed pulled six inches mercury connected bag must have pinhole leak because reading stayed bit under five inches good enough though As long bagging few other items worth mentioning CST has 35 ounce unidirectional carbon fiber fabric comes 10 inches wide sells $1200 per lineal yard beautifully thin 5 thousandths thick material perfect wings layer two lightweight glass top George Span Aerospace just introduced reusable Quick-Seal clips used seal ends vacuum bag tubes consist 743 inch solid plastic rod fits snugly inside fairly rigid Ushaped plastic channel 20 inches long just place bag over channel push rod channel thus forming easy doand undoseal $350 Another new item George pair pumps E-Z Lam preset dispense ounce per stroke part resin e per stroke part B hardener will blessing baggers dont have precision scale weighing epoxy New League Silent Flight Address LSF President Bob Steele communicated LSF now has new permanent mailing address 10173 St Joe Road Ft Wayne IN 46835 old Winfield IL PO box wrn continue forward mail year until August 1992 Bob says mail turnaround time will back 7 14 days used Members may phone Bob 219/485-1145 Mankato Model Soaring Society newly formed club North Mankato Minnesota Bob Botha driving force says has permission use nice 40-acre sod farm flying field Interested sailplaners electrics welcome too area should call Bob 507/345-1832 evenings weekends Southwest Winter Soaring Contest will again sponsored Central Arizona Soaring League held Phoenix February 1 2 will two one-day contests flying modified Triathalon precision duration tasks Sounds like good place schedule winter break info write Chuck Wehofer PO Box 2472 Chandler AZ 852gEli