SLOW COMBAT popular control line event parts country Despite its strong following has almost com plete absence kits published plans probably result continuous series rules changes have eliminated coin petitive designs two years 1977 inboard tanks very short noses prevailed 7 8-79 rules stretched noses 5 deregulating tank location delet ing landing gears 1980-81 book outlawed forms inboard tanks Fortunately no changes 1982-83 will disallow equipment Considering rules instability its easy see no has time produce kit magazine article positive effect has interesting variety equipment contest Fuel tanks main factor sets Slow Combat apart other events require ment suction fuel system Fast FAI Combat contestant simply opens up venturi wide possible hooks up pressure tank fuel tank venturi size key factors make contestant competitive another Slow Combat jobs faster tighter-turning other models run suction Sport Stunt setups work event Prior 1978 went through series con ventional uniflow clunk tanks really satisfactory equal compe tition June 1978 issue Model Aviation contained article Don Jehlik chicken hopper tanks completely changed life least respect Slow Combat built chicken hopper soldered onto Perfect square tank first test flight perfectly smooth steady run start finish havent used other form suction tank since principle engine draws fuel tiny hopper thus unaffected sloshing G-forces decreasing volume main tank Longer faster smoother runs result no rich-at-the-start/lean-atthe-end runs no saging enter tight maneuver chicken-hopper tank vital success Dragon too fast tight-turning work conventional tank Airframe design Combat contests won RUBRER TUBING STRAPPING TERE FRONT SPON ITTI TANK FRONT VII SOLID HOLLOW RORFECT UROMMET I/GNALSA INSERT PERFECT H DO L LOW SLUG 5 BALSA INSERT FOAM CUT 0 332 BRASS TONINGSECTrON A-AOWED ROCK WIRE WICKETS EPOGIED IN PLACE INSERT TEMPLATE 2 BEER RIB 0 REOD -VA PLY I2 I2 I-V4 B A-AG BLIND NOTS V2 F TIP TEMPLATE IB PLF NOTCH CSRE TEMPLATES OSE FIROT P OR PLY 714ROOT TEMPLATE ALAWYS KEEP TIE ISAME SIRE OP I4 VA beating series four six opponents Quality airplanes needed win match quantity models needed win contest 1976 World Championships saw British solution challenge foam Super star models featured balsa hardwood center sections foam wings crashes 4 like thought really tearing up competition heres fine weapon Slow Combat Dragon has proven itself well battle Since usually need whole fleet models perhaps better word platoon competitions author describes series imaginative mass-production techniques Smith 58 Model Aviation ar JOhnsOfltOOK ipic55 101I.levulano uauuflguxc Finals 1980 Nationals uragon nas Impressive contest record FULL-SIZE PLANSAVAILABLE SEE PAGE 140 IR PLY ENIDRE MEER2TS VIE P53/JO 53/RE 1222 MEUSTS I/BEI-VBs 10-02 PLYWOLO IIH HOLW# 6 SPRUCE SPAR CAREES2 BELLCRAMn- - RAPPENG TAPE D5IBRO 30 TPREAOED PUSHROD 1/16 BRASS TUBING RING LEADOUTREUCRANI LEADOUT DETAIL 08 BALSA CANOPY LS SIDE VIEW ONWA SPE AL NO BSAOU PPE GH HANRE OP WING TIP CUTTER 3/As 2/2 P82 OR SPRUCE -NICI-WSRE WIRE Iii ill________ ROLLOW /A STRASPENG TAPE JI HALLOW Li LOWER CONTROL MOUNT 2I I/B PLY UPPER COESTROL MCERJT -3/An I/O I/B TOP VIEW UTRAPPNS TAPE TOP BOTTOM HALLOW ROLlS IS TA6 DRAOoN DESIGN ED 8 DRAWN BY PAUL SMITHTO TR22ASFURMER TRACING BY JOE DEMARCOTPANS WIPECCL URUNG BRUCEI/A I-I/O PLY I/As 02 BALSA CAPUTRIP 10 FOAM TURCOE CECICI/B BALSA 01 INSTALL AFTER WINS ISV COVERED I/RV2s2-3R PLYII/SS 3/A WOOD {NICRROME FOS COUTROL HORNSAEK ASEONNECT OURRO CLEVOI/S SCSLE VAEI/O33/AFOAM CUTTEIiI BALSA FELERFULL UCRLE ~FOAM FILLER5R BALSA DDER1/03/A PINE I/A BALSAFIRRING LEFT WING B LEADOETS REMOVESTRIP SPRACE-zz---~-3/A ALSA MARE PEWS EXTRA LEEB TREN TREE AFTER FUSE El/SO PLYTOP ORLYsB BEEN FF1150 TA EEBTER WE BEETS BNUTS3/32 ERASE TUBE TAP 2-SB TEBEAB POWLARE I25 BELSABAR B SOLEER RE EBEEST FLRARUE SOREW B AFT FURWEB BI VBELVSFROEV S/BEllS SF5588 OPTIONAL DETACHABLE TAIL foam wings frequently destroyed wood structure generally survived New foam cores installed later model service again very low cost important models flew better competition Since have built foam wings almost exclusively 1977 Dragons won Dekalb Aero-Challenge MACA #1 Slow also took 5th Nats 1979 1980 Dragons featured detach able tail sections ease transportation repair feature has entirely successful have seldom really needed dis assemble models 1981 fleet will feature permanent tails plans instruc tions cover both options two extremes Combat design eggshell3 battering ram Dragon neither An eggshell airplane extremely light big fragile airplane can Out turn competition will tolerate contact kind battering ram will fly through anything another its kind can sometimes vertical eight Dragon best effort striking compromise between two Materials lumberyard get slab PIVOT PONT A EXACTLY UBOVE URFATE UF TIP cUTTER ____7 3/A STRAPPENG TAPE/ CONTINUOUS WRAP OVER SPARS B AROUND WIND TIPS OVERLAP 0 ON BOTTOM FOAM TIP AL/OAR TIP CUTTING FIXTURE FOP VIEWAER AENT 3/3200 T1 IITB P1LEER ARMSOEEEEEE PEPPER LS AR BRASS- P/IS AD BRASS5 5P FLISETA0VUTBOPES0 3/32/WA111 22 AELES VIEWBEt UIE BR A55 5PM STREP 3/32. I/BS 9/IS PA TUBE BROWS B PEASR NPPER FUEL TANK Heres authors fleet pack herd Dragons set upforthe Canadian Combat ruleawith amrtnrcnr cot wkoola IndavaorvIoao So annA far manS na alone Ion Sn nroain insulating foam 2 x 8 ft 2 wide Density normally 1 lb per cubic foot Genuine Dow Styrofoam light blue stuff about twice density makes planes last fly like furniture Pick up 8-ft length urring strip dont have some scrap wood around house will also need 6 x 1 ft piece plywood particle board foamcutting fixtures either fuselage type youll need 4 hardwood motor mounts plywood 5/32 dowels x 3 balsa 36-in spruce / x qd erfect leadout wires Fox 2-in bellcrank control horn 1/16-in 3/32-in -in brass tubing Dubro 30-in threaded pushrod clevis 4-40 x l-in bolts blind nuts detachable tail also requires 1 x balsa /16 x ce 6-32 x 2-in bolts blind nuts solder-type clevis Titebond used joints use Hot Stuff wood-to-wood Hobbypoxy Formula 2 fuel-proofing motor mount high-stress areas Use low-temperature covering such Solarfilm GBC laminating film foam wings High-temp material such MonoKote Fascal good fuselage tail canopy models require no paint Nylonreinforced strapping tape such 3M used prevent flexing wing Foam-cutting equipment important piece equipment power source have used battery charger past now have American Flyer train transformer cutting bow fully explained plan wing tip cutter As shown photograph drop-wire fixture vertical plank series eyelet guides exactly 1 surface An eighth-inch piano wire held large paper clip being heated An alumi num heat shield protects plank torch Vertical alignment essential evening spent equipment will pay handsome divi dends time saved future models Cut airfoil core templates plywood Use 5/64-in nails align templates foam Mark foam carpenters square felt-tip pen model requires four foam blanks follows 18 x 10 60 Model Aviation Wingtip ieadoutswhich arecutand terminated aftereievatortravel adjusted Doing operation last results lengths Foam-and-balsa turtledeck glued clamped place after wing covered Spruce strip protects balsa clamps chicken hopper tank under construction Large tube hopper small fuel feed Completed tank R has vent plugged leak test Controls Dragon bushed Fox belicrank pushrod guide re inforced elevator one-piece Du-Bro threaded pushrod Fox metal horn Installation pushrod guide must taken seriously Sloppy work point can ruin planes chances competition Heating tip wire drop-wire fixture preparation boring lateral hole wing blank See text CUTTING WIRE FOAM BLOCK WIREHOLESHANDLE SUPPORT BLOCK END STOP 3---BASE RIB TEMPLATE ASSORTED WEIGHTS WALL OR/ COLUMNWOOD PLANK 2xIOx APA NiFIW ci IADELCOFOAM ASSEMBLY r I II II II / URES ITABLE FOAM WING ASSEMBLY METHOD rAPPLY PRESSURE HERE TO SQUEEZE WING HALVES TOGETHER /1 WING TIP CUTTING FIXTURE MACA Nets Smiths campaigned Dragons detachable tails No problems encountered wIth system two years flyIng 17 x 10 two 5 x 10 can get four models 8-ft slab plan building foamies make big mitre box cut blanks have someone hold straightedge vertically against side cut blanks Take blanks drop-wire fixture well-ventilated area Clamp fixture true vertical position using level core tem plate align blank under wire Keep fire Continued page 125 February 1982 61 can take eyes off lovely Moire Smith look drop-wire fixture rack completed Dragons background 1981 model Dragon like 1981 VW best changes internal Pinstriping tape along leading edge helps protect against dings cuts caused eating other peoples streamers secret Paul Smiths mass-produced Dragonsquality control inspections Ink lines indicate gluing area stab left bare Moire Smith checks five-in nose alignment gauge FOAM ASSEMBLY FIXTURE plus $3 postage Simplex 143 Richmond Street El Segundo CA 90245 Crocket/FAI winder converted purchaser English hand drill die cast nylon case completely encloses metal gears Thrust load carried special ball thrust race crank supplied rather short can easily replaced longer made bar stock winding knob appears too small might want replace drill chuck furnished discarded replaced wire hook Parts instructions conver sion included Price $2400 plus $285 freight Crocket P0 Box 12600 Fresno CA 93778 $2950 plus $295 freight FAI Model Supply P0 Box 3957 Torrance CA 90510 Bob Meuser 4200 Gregory St Oakland CA 94619 Dragon/Smith Continued page 61 extinguisher water bucket handy Heat point wire red hot Set torch down release paper clip wire should pierce straight hole through blank can make hole larger smaller varying temper ature wire Excessive heat can cause oversize hole too little heat can result wire wandering off center may well pierce four sets youre pierce 5-in tip blanks Next comes hot-wire cutting Clear off large enough area cores lay flat bench blank templates held square bench templates square leading edge nail templates foam Always keep same side up avoid creating warp templates arent quite symmetrical Adjust transformer give good clean cut dragging wire making too wide cut Practice some scrap After cutting spar notches disconnect wire thread through pierced hole Cut void disconnect wire again pull Out wire scrap Use same nail holes align airfoil templates Airfoils cut four separate passes starting always spar notch now have fixture front spar slot earlier models front spar slot cut manually-held straightedges Tips cut airfoil template tip-cutting fixture Cut top first bottom removing top scrap sure position both template center line pivot point exactly 1 above base Glue outboard wing tips outboard wings time Position insert wing tip templates inboard tip cut out insert Glue leadout mount tip glue tip inboard wing Sand cut Y8 off top scrap save install later Use Titebond glue joints should also make two 24-in assembly fixtures time Use airfoil templates cut two cradles foam make clear ance notches engine mount tail required one-picce fuselage cut furring strip length glue pine spruce spacers bring front end up dimension 125 dry file spar notches two-piece fuselage file bellcrank-mount notches inapiece in balsa glue x -in spruce both top bottom dry cut center rib tail boom Sand center rib match airfoil sand tail boom fit rib Using center rib alignment glue 3/16 capstrips tail boom dry sand off excess glue drill Introducing New H S Hornet 42 CID 6 1/3 HP Only 6 1/4 lbs New AMA 1 982-83 Rules 44 Limit -- Make 42 CID Legal 5 1/2 center top cylinder head 3 1/2 center side carb Perfect 1/4 scale P-51 1/3 Pitts Very smooth running Like Quadra Optional twin-stack nrclfln Smoke cnsjoitntnlahlo Sit oh 5 en o sea lab Saabln-ing pioton Icr higher cotnpnssion s tile Optional choho Enan hand stoning Spocial clone- coopind heh-tnnoitn oentnm lot moo AF adjatior Solid- know teen macnt op tional radial soppottsatas[ Rotter Ibroot- hearing noolosionly tnan model ainonft Youll Love Partner An updated version popular engine Note improve ments made especially mini ature aircraft use roller thrust bearing double-ring piston soark olug location low 13 1/21 S more power output LIMITED TIME OFFER LIST $14995 SALE $9995 seal knits qinnar Fnwsr-bnlnncnd IihO-wnightwink starlnr toed geanes finebentReact-date prop bob MORE HORNER SPECIAL PART RETAIL SALE 772$24955$75900 77927200$77555 7777250059995 7087250059995 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 79 ROPER ENGINE NEW Sale Last) 79 ENGINE NUB 8 MOUNT PACK 79 USEO DEMO ENGINE BALENCED 6BOLT HUB Repay Patnar N Ouad4 PROP ORILL JIG 709 779 770 7077495 702$7795 So compact measures much larger Quadra Partner engine Comes complete built choke 6 bolt prop hub Radial mount available twin stack INTRO $19995 SALE 1255 7200 2455 7555 500 7595 755 2 75 Write yr CALL Seed 20c Stamp CatalogWill Ship Orders Same Day cODUPSAdd 54 shipping per engine HOR N ER SALES INC Rt 2 Box 9 300 Dixie Hwy. 312 946-2515 Beecher IL 60401 PEANUT-PEOPLE PRESENT PEANUT SCALE MODELS MuSTANG MILES M-18ZERO DRuINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY 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CHOKE ASSEMBLY Parmer 5 Ooaadraj 727 9500 3955 BRITE SPINNER Repec Part N Quad 722 6500NEOPRENE GAS LINE Per Feet707 2500 RESISTOR SPARK PLUG RCJ-6 773 BIG PROPS VAILABLEI Finished Balanced Weed Aviation Jewelry Custom Made Reproduce Plating Gold Rhodium Bright Nickel White Metal Molding Largest Aircraft Jewelry Selection World Also flight School wings mylar decals jacket patches novelties Plus Fine Hard-Fired Enamel er Special priCRO Re volume orders Call write today Simi-Air214 596-3505 19107 Creeks Dr. Dallas TX 75252 r CakQie R/C 0 VAN NUYS CA 91408 SPORT CARS PO BOX R/C GOODIES 3 II PORSCHEPORSCHE 917K BMW-MI IU U Iw 111/21nIg15-3/4inCHARGER15-3/4inI $6495Reg $7995$995Reg $8295 InI $4295SPEC$5295.-CH TXSPEC$5495 flu CHARLIES NEW 1/12SCALE R/C CARS COMEASSEMBLEDREADY TO RUN COMPLETE WITH 2-CM TRANSMITTER AND WITH RECEIVER AND SERVOS IN LED 27 MHZ ONLY BATTERIES NOT INCLUDED DECALS ARE FURNISHED CARS FEATURE FULLY PROPORTIONAL STEERING WITH AUTOMATIC NEUTRAL PLUS VARIABLE SPEED CONTROL BOTH FORWARD AND REVERSE PORSCHE 935 AND BMW-Mi ALSO HAVE OPERATING R/L TURN SIGNALS PLUS STOP LIGHTS LOW POWER TRANSMITTER BELOW 100 MW REQUIRES NO LICENSE FUN FOR THE WHOLE FAMILYI CATALOG 6W L L70Fore - SHIPPING -$400 USA CAUF RESIDENTS ADD SALES TAX NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed Aotomatieelly align fuselage structures ate built strings measuring eyeballing Simply slide four centeting brackets track until align firewall tail uint two bulkheads Clamp fuselage together lightly mith rubberbands structure mill thee straight track ucaurnmoduIesmrudusuetufoufS Price 2995 ILI Miter Master Miter Master tool designed enable crafts man make perfect joists mood accurately sanding pre-setangles ThesguaringfencnA allowoforprecisegO angles atd retracts below surface Any angle cay beset triangular guide using adjacent side complement angle mill turmed making invaluable truss construction new cyanoacrylate adhesives require accurately fitted loints achieve full strength Miter Master mill enableyso make easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 Pnce $750 Ausembled bound 503 357-2732 Navy Best Ducted Fans SKYRA Y F4D- Plan FormDesigned Bill Effinger Its f Radio Control SKYNAY NAVY F4D1 Scale Ducted Fan RIO RK-20 Fan Unit ong Plan Set RODF-1 $1995 Prices Complete Plana Sub Assembly Detailed Parts Liats Add $200 Mailing Tube Send Brochure Details new designs & great things come Send $100 refundable information two assembly bolts 6-32 x 2-in Glue upper lower bellcrank mounts peg -in dowel Remember peg goes through center rib tail boom Round off aft end tail boom cut stab slot Motor mount Glue clamp hardwood beams center rib fuselage drying add two vertical spacers dry glue clamp 1/32 outboard ard plywood doublers outboard doubler must high-strength plywood such Sigs inboard doubler can lighter 3-ply type such supplied Balsa USA Sand motor mounts doublers shape drill motor bolt holes 9/64-in tank wire hole 1/16-in dowel holes 5/32-in Install sand dowels smooth Using Dremel tool end mill cutter fit engine mount engine Mix up small batch Hobbypoxy Formula 2 warming heat gun stirring stick until thins out consistency clear dope Spread warm glue over motor mount being sure get bolt holes Apply heat finger-paint smooth final application heat will remove finger prints Hang assembly nose-down dry Control system system designed re use mind Fox 2-in bellcrank provides adequate stability better strength less weight popular 3-in model Cut two -in sections 3/32-in tubing leadout guides slip onto full-length pack Perfect BC leadout cable Cut two 1-in sections 1/16in brass tubing bushings slip onto ends bend horseshoe shape insert bellcrank bind copper wire solder leadouts cut terminated after final assembly airplane one-piece model uses Du-Bro 30-in threaded pushrod Z-bend bellcrank end two-piece version uses same rod cut behind trailing edge short length 3/3 2-in brass tube tapped 2-56 thread bound soldered front end terminated control horn soldered clevis Fox metal control horn used heavy-duty pushrod guide fabricated Vs-in tubing bound soldered piano wire screwed epoxied fuselage failure guide could cause loss control need Tail canopy canopy rudder made Ye balsa covered before installa tion stabilizer /a balsa n spruce spar trailing edge elevator also a 1/32 plywood patch top mount control horn prevent splitting along grain Mark gluing area felt-tip pen cover hinge stab elevator before assembly use either Fascal Mono Kote both covering hinges iron-on hinge method described April 1979 Model Aviation has used complete success models since article published Assembly Glue front vertical spar outboard wing taping masking tape Sand runs motor mount redrill -in mounting bolt holes recheck engine fit Glue outboard wing fuselage center rib youre building two-piece model Use two chains rubberbands hold assembly together drying Some scrap cardboard under bands needed protect foam wing tip drying can install stab 126 Model Aviation LGLOW lireb cdl PLUGS 0 Blow Proof Seal OSix Types 3 Heat Ranges S Longer Life S Flash Starting Only $120 SWANSON Aiwe PO Box 1517948 Wayne NJ 07470 eAmerican made Schnuerle ports eDouble ball bearing sPerry carburetor eForged & domed piston 0 Forged &rod 0-ring sealed back cover lnvestment cast crankcase Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA cA 91107 213 359-0016 795-9821 assembly set up controls rubberbands can removed fit inboard wing onto model may require several tries get proper clearances cut controls motor mount assembly fixture simply two 24-in foam slabs airfoil shapes cut wood plank some waxed paper whatever assorted weights handy Glue inboard wing spars airplane Titebond place model between waxed-paper-covered foam cradles stack plank weights top wing tip should against wall can press against other get good tight joint next day remove model fixture install leadouts pinned balsa inserts wire wickets glued epoxy Hot Stuff baking soda scrap foam now re-inserted one-piece model also needs foam fillers between wings Ask GMP dealer details3U CRAFTSMAN HO TEL 213-992-0195 GMP GORHAA4 MODEL PRODUCTS CALABABAB CA 91305 TVVX 9104945833 February 1982 127 RJL [the ULTIRTE fluing machine K61 Suggested Retail $14800 Muffler Included New Expandable concept R/C Helicopters Competitor will fly 45 50 60 size engines model can take novice flying winning AMA expert class Advanced design features never before seen RIG Helicopter Triple ball bearings main tail rotor hubs5Light weight metal construction Autorotation standard5Low cost parts aControls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Dual ball bearing tail pitch controlSpiral hypoid gears main tail drives WHAM SHOW 82 Dont miss greatest Radio Control Show East Westchester County Center White Plains NY fts 14th annual show its sure biggest best ever Keep fleet last week end Febma19 open 1992 WRAMs Shew going te largest yet Well seer 150 manufacturers ether enhibi tors hare already signed up bring eserything thatneemin hobby . hits engines radios accessories neery thing betweer farrtous Swap Shep will lull operatise thousands ot items including built-up planes almest sew radios engines on en sowething just about eseryone Static Cumpetltlue Make sum latest creation tinished ep ard polished poell hare chance take home et dozens troyhies offered eseef 5 rOSTuuIuso r roC sours rusT s,u r5050 500 50005 0050 ursoso Curs stubS Foss rrLoo 5050 Judging taken ylaoe Suraae utternoon Entries acceyted until 12 soon Sunday Synural udmisuien area will prosided en 501 h days tsr static display sontentanto city Suilt-sp models [ BROWN A-23 CO-2 TINY PEANUT CO-2 ENGINE ENGINE $359S CHARCEN 5995 3/4 COMPLETE CATALOG $100 PHONE 714 469-9975 er 442 4838 Peck-Pelyiners BOX 2498-MA LA MESA CALIF 92041 over fuselage two-piece model needs balsa fillers behind spSrs dry give whole wing light sanding blend parts together remove glue runs Clean wing soft brush vacuum cleaner Apply nylon strap ping tape shown plans essential prevent flexing breaking glue joints may also want add strip tape near leading edge prevent streamers cutting too far foam Add AMA numbers other decorations before covering Covering Very low-heat material needed melting foam Cut four pieces 25 x 12 allow overlapping tips center leading trailing edges Lay piece cover ing over one-quarter wing iron line down spar Work iron away line toward leading trailing edges will keep air bubbles being trapped under covering Cut slits covering laps around tip edges also helps prevent wrinkling remaining three sides same way fuselage one-piece models needs built up foam turtledeck capped balsa strip front strip needs tacked place Hot Stuff remainder clamped place under spruce strip glued hegisfoution 01 models sill start &30 am mooring SWAP SHOP WROMs Soap Shop has some see 51 major show altruc tiers thOusands 01 irdluidual items charging harde help olimirute registration Orssh 1502 group Shop ciii proviSo tsr pro regintratier terms seoniur forms nerd neltuodressed stamp ed enselepe JeOr shinIer 4 sever Rd Luoshmunt NY 10530 SPECIAL NOTE pearthere ciii Seer restriotises rumser St bsiltup coduls registrant nay place Scap Shop ruorrrrrtarrratisr crOOr 00 CurS 5005cr 55 Cneoeicr no cross ruirr 5Y tdWa 19041 mO-5usr cEnecopenEe fuels eEfSMOSSLEe5 50 lebruary 20/21 lOAM to6PM SCL I ScALE DRAWINGSIA PHOTOS BOOKLETS iG jREPLA-T2CH asSINTERNATIONAL 1931 CATALOGS $200 49500 IVtC KENZIE HIFVY ____________ VIDA OREGON 97489 Titebond Fuel-proof joint between covering motor mount warmed Hobbypoxy Cover fuselage plastic film Install pushrod guide rudder canopy fuel tank wires Fuel tank construction Materials 010-in brass shim stock 3/32 -in OD brass tubing Sears 60/40 solder Kester soldering paste flux Weller electric solder ing gun rather torch used wood form shape tank helpful essential Cut out three parts main tank solder front seam add top bottom Sharp edges should filed smooth taking care clean up lead dust Insert two filler tubes pressure-test under water tank airtight drill four holes outboard side two front Install fuel feed air vent tubes Make chicken-hopper out short piece 9/16-in tubing shim stock lid File bottom hopper tight fit tank solder place Note hopper Vs above centerline compensate richening out inverted Pressure-test tank under water again Clean tank hot water baking soda install Dragon foam rubber pad 128 Model Aviation N underneath rubber tubing over tank wires protection fuel filter may need frequent cleaning first new tank Engines Fox Combat Special Mark III has standard engine Dragon Future models will feature Mark IV have yet opportunity test Supertigre G2 have used some loss speed 05 36 has used some success local contests OS equals Fox speed adds too much weight good maneuverability opinion Fox consistently pulls Dragon 92 94 mph 15% nitro exceptional engine able break 100 several times 30% get under 90 something wearing out modifications replace rear bearing Hoover-NSK R8 78 use Supertigre needle valve assembly venturi insert wrapped polyethelene plastic form air seal head clearance set 015 018 essential good performance Break-in via bench running 9-6 prop cut 8 Lapping required certain very tight replacement pistons sleeves like Fox becasue runs right Out box doesnt take time away important things like fuel tanks Flying completed airplane should weigh 265 ounces balance 25% chord slightly outboard thrust line sidemounted engine leadout position offset wing provide line tension necessary recommend tip weight engine out-thrust rudder offset Make initial test flight engine set rich side until become familiar needling engine chicken hopper tank Foamies can become warped covering assembly check out use iron trim tabs correct warp plane feels too sluggish go aft CG control Ive never come Out tail-heavy yet Top Flite 9-5s 9-6s cut 8-6 work well have four Dragons tested trimmed out should ready contest CL Aerobatics Paul Continued page 62 Bill Lindemann Metuchen NJ wrote question come results WinstonSalem CL Championships showed Novice Beginner scores 454 442 431 Well thats good question does show voluntary placing usually allow contestants seed themselves category choice doesnt always work out numbers However lets also remember what 454 region may another because ofjudging differences abilities competitors etc scores shown Advanced Expert categories results contest sent writer however can surmise Experts probably scored 520 over Advanced falling somewhere between 450 500 What says PAMPA categories dont always work right down line since contest management still refuses have four cate gories Winston-Salem meet will necessarily some place scores will off usual scale place Richard Byrons records pilots scores would come handy contest management reference guide Perhaps could have copies pilots rankings sent major NOT JUST ANOTHER CATALOG novice tips experts expert thousands products specifica tions photos help decide make hobby enjoyable everybody interested RI Its standard reference book Will Ever Need Available through local hobby shop use coupon Yes send copy new RADIO CONTROL BUYERS GUIDE D Enclosed $950 $795 plus $1 55 postage us & canada dians Send us funds VA residents add 4% sales tax D charge D Mastercharge D visa charge No________________________ Exp Date _________________ Name Street city State Zip Return Boynton & Associates Inc clifton House clifton virginia 22024 mE i ion special MK III 84 Mono 78 5pn Weight 18 lbs2195 Travel Ai 2000 105 Classc Scale 5plann 23 lbs2295 Travel Ai 4000 99 9adal ing Classic Spe 23 lbs2295 Fokker 0-VII 88 Gernan WW Fglsn Spe 23 lbs2495 Ceeing Scan Sopsnth Pcp 80 Spn Sopacth Tnpnbocnd 80 Tnplane Waco ATO Lyjack Vesoc 90 8placn Nncpo-t 11 Sebe 85 Splanc 3 5 Scale Fockec 081 72 Tcplace Plans shipped U PS Parcel Post Please add $300 torpostaqe liandlino fastest service send postal inoney order No C 00 orders sent BEHRENS PLAN SERVICE 31-27 Healy Ave Far Rockaway NY 11691 in212 337-6987 February 1 982 1 29 Quick Silver $1197 er Bearing Inol Post ste lingSyringe Dispenser Field Repairs No Waste 22000 psi tensile strength Low melting point open flame lighter soldering iron Will Join 14 different combinations metals Wont Blacken Tarnish Seining South THS Hobby Distributors PO Box 914 Rosewell GA 30077
Edition: Model Aviation - 1982/02
Page Numbers: 58, 59, 60, 61, 125, 126, 127, 128, 129
SLOW COMBAT popular control line event parts country Despite its strong following has almost com plete absence kits published plans probably result continuous series rules changes have eliminated coin petitive designs two years 1977 inboard tanks very short noses prevailed 7 8-79 rules stretched noses 5 deregulating tank location delet ing landing gears 1980-81 book outlawed forms inboard tanks Fortunately no changes 1982-83 will disallow equipment Considering rules instability its easy see no has time produce kit magazine article positive effect has interesting variety equipment contest Fuel tanks main factor sets Slow Combat apart other events require ment suction fuel system Fast FAI Combat contestant simply opens up venturi wide possible hooks up pressure tank fuel tank venturi size key factors make contestant competitive another Slow Combat jobs faster tighter-turning other models run suction Sport Stunt setups work event Prior 1978 went through series con ventional uniflow clunk tanks really satisfactory equal compe tition June 1978 issue Model Aviation contained article Don Jehlik chicken hopper tanks completely changed life least respect Slow Combat built chicken hopper soldered onto Perfect square tank first test flight perfectly smooth steady run start finish havent used other form suction tank since principle engine draws fuel tiny hopper thus unaffected sloshing G-forces decreasing volume main tank Longer faster smoother runs result no rich-at-the-start/lean-atthe-end runs no saging enter tight maneuver chicken-hopper tank vital success Dragon too fast tight-turning work conventional tank Airframe design Combat contests won RUBRER TUBING STRAPPING TERE FRONT SPON ITTI TANK FRONT VII SOLID HOLLOW RORFECT UROMMET I/GNALSA INSERT PERFECT H DO L LOW SLUG 5 BALSA INSERT FOAM CUT 0 332 BRASS TONINGSECTrON A-AOWED ROCK WIRE WICKETS EPOGIED IN PLACE INSERT TEMPLATE 2 BEER RIB 0 REOD -VA PLY I2 I2 I-V4 B A-AG BLIND NOTS V2 F TIP TEMPLATE IB PLF NOTCH CSRE TEMPLATES OSE FIROT P OR PLY 714ROOT TEMPLATE ALAWYS KEEP TIE ISAME SIRE OP I4 VA beating series four six opponents Quality airplanes needed win match quantity models needed win contest 1976 World Championships saw British solution challenge foam Super star models featured balsa hardwood center sections foam wings crashes 4 like thought really tearing up competition heres fine weapon Slow Combat Dragon has proven itself well battle Since usually need whole fleet models perhaps better word platoon competitions author describes series imaginative mass-production techniques Smith 58 Model Aviation ar JOhnsOfltOOK ipic55 101I.levulano uauuflguxc Finals 1980 Nationals uragon nas Impressive contest record FULL-SIZE PLANSAVAILABLE SEE PAGE 140 IR PLY ENIDRE MEER2TS VIE P53/JO 53/RE 1222 MEUSTS I/BEI-VBs 10-02 PLYWOLO IIH HOLW# 6 SPRUCE SPAR CAREES2 BELLCRAMn- - RAPPENG TAPE D5IBRO 30 TPREAOED PUSHROD 1/16 BRASS TUBING RING LEADOUTREUCRANI LEADOUT DETAIL 08 BALSA CANOPY LS SIDE VIEW ONWA SPE AL NO BSAOU PPE GH HANRE OP WING TIP CUTTER 3/As 2/2 P82 OR SPRUCE -NICI-WSRE WIRE Iii ill________ ROLLOW /A STRASPENG TAPE JI HALLOW Li LOWER CONTROL MOUNT 2I I/B PLY UPPER COESTROL MCERJT -3/An I/O I/B TOP VIEW UTRAPPNS TAPE TOP BOTTOM HALLOW ROLlS IS TA6 DRAOoN DESIGN ED 8 DRAWN BY PAUL SMITHTO TR22ASFURMER TRACING BY JOE DEMARCOTPANS WIPECCL URUNG BRUCEI/A I-I/O PLY I/As 02 BALSA CAPUTRIP 10 FOAM TURCOE CECICI/B BALSA 01 INSTALL AFTER WINS ISV COVERED I/RV2s2-3R PLYII/SS 3/A WOOD {NICRROME FOS COUTROL HORNSAEK ASEONNECT OURRO CLEVOI/S SCSLE VAEI/O33/AFOAM CUTTEIiI BALSA FELERFULL UCRLE ~FOAM FILLER5R BALSA DDER1/03/A PINE I/A BALSAFIRRING LEFT WING B LEADOETS REMOVESTRIP SPRACE-zz---~-3/A ALSA MARE PEWS EXTRA LEEB TREN TREE AFTER FUSE El/SO PLYTOP ORLYsB BEEN FF1150 TA EEBTER WE BEETS BNUTS3/32 ERASE TUBE TAP 2-SB TEBEAB POWLARE I25 BELSABAR B SOLEER RE EBEEST FLRARUE SOREW B AFT FURWEB BI VBELVSFROEV S/BEllS SF5588 OPTIONAL DETACHABLE TAIL foam wings frequently destroyed wood structure generally survived New foam cores installed later model service again very low cost important models flew better competition Since have built foam wings almost exclusively 1977 Dragons won Dekalb Aero-Challenge MACA #1 Slow also took 5th Nats 1979 1980 Dragons featured detach able tail sections ease transportation repair feature has entirely successful have seldom really needed dis assemble models 1981 fleet will feature permanent tails plans instruc tions cover both options two extremes Combat design eggshell3 battering ram Dragon neither An eggshell airplane extremely light big fragile airplane can Out turn competition will tolerate contact kind battering ram will fly through anything another its kind can sometimes vertical eight Dragon best effort striking compromise between two Materials lumberyard get slab PIVOT PONT A EXACTLY UBOVE URFATE UF TIP cUTTER ____7 3/A STRAPPENG TAPE/ CONTINUOUS WRAP OVER SPARS B AROUND WIND TIPS OVERLAP 0 ON BOTTOM FOAM TIP AL/OAR TIP CUTTING FIXTURE FOP VIEWAER AENT 3/3200 T1 IITB P1LEER ARMSOEEEEEE PEPPER LS AR BRASS- P/IS AD BRASS5 5P FLISETA0VUTBOPES0 3/32/WA111 22 AELES VIEWBEt UIE BR A55 5PM STREP 3/32. I/BS 9/IS PA TUBE BROWS B PEASR NPPER FUEL TANK Heres authors fleet pack herd Dragons set upforthe Canadian Combat ruleawith amrtnrcnr cot wkoola IndavaorvIoao So annA far manS na alone Ion Sn nroain insulating foam 2 x 8 ft 2 wide Density normally 1 lb per cubic foot Genuine Dow Styrofoam light blue stuff about twice density makes planes last fly like furniture Pick up 8-ft length urring strip dont have some scrap wood around house will also need 6 x 1 ft piece plywood particle board foamcutting fixtures either fuselage type youll need 4 hardwood motor mounts plywood 5/32 dowels x 3 balsa 36-in spruce / x qd erfect leadout wires Fox 2-in bellcrank control horn 1/16-in 3/32-in -in brass tubing Dubro 30-in threaded pushrod clevis 4-40 x l-in bolts blind nuts detachable tail also requires 1 x balsa /16 x ce 6-32 x 2-in bolts blind nuts solder-type clevis Titebond used joints use Hot Stuff wood-to-wood Hobbypoxy Formula 2 fuel-proofing motor mount high-stress areas Use low-temperature covering such Solarfilm GBC laminating film foam wings High-temp material such MonoKote Fascal good fuselage tail canopy models require no paint Nylonreinforced strapping tape such 3M used prevent flexing wing Foam-cutting equipment important piece equipment power source have used battery charger past now have American Flyer train transformer cutting bow fully explained plan wing tip cutter As shown photograph drop-wire fixture vertical plank series eyelet guides exactly 1 surface An eighth-inch piano wire held large paper clip being heated An alumi num heat shield protects plank torch Vertical alignment essential evening spent equipment will pay handsome divi dends time saved future models Cut airfoil core templates plywood Use 5/64-in nails align templates foam Mark foam carpenters square felt-tip pen model requires four foam blanks follows 18 x 10 60 Model Aviation Wingtip ieadoutswhich arecutand terminated aftereievatortravel adjusted Doing operation last results lengths Foam-and-balsa turtledeck glued clamped place after wing covered Spruce strip protects balsa clamps chicken hopper tank under construction Large tube hopper small fuel feed Completed tank R has vent plugged leak test Controls Dragon bushed Fox belicrank pushrod guide re inforced elevator one-piece Du-Bro threaded pushrod Fox metal horn Installation pushrod guide must taken seriously Sloppy work point can ruin planes chances competition Heating tip wire drop-wire fixture preparation boring lateral hole wing blank See text CUTTING WIRE FOAM BLOCK WIREHOLESHANDLE SUPPORT BLOCK END STOP 3---BASE RIB TEMPLATE ASSORTED WEIGHTS WALL OR/ COLUMNWOOD PLANK 2xIOx APA NiFIW ci IADELCOFOAM ASSEMBLY r I II II II / URES ITABLE FOAM WING ASSEMBLY METHOD rAPPLY PRESSURE HERE TO SQUEEZE WING HALVES TOGETHER /1 WING TIP CUTTING FIXTURE MACA Nets Smiths campaigned Dragons detachable tails No problems encountered wIth system two years flyIng 17 x 10 two 5 x 10 can get four models 8-ft slab plan building foamies make big mitre box cut blanks have someone hold straightedge vertically against side cut blanks Take blanks drop-wire fixture well-ventilated area Clamp fixture true vertical position using level core tem plate align blank under wire Keep fire Continued page 125 February 1982 61 can take eyes off lovely Moire Smith look drop-wire fixture rack completed Dragons background 1981 model Dragon like 1981 VW best changes internal Pinstriping tape along leading edge helps protect against dings cuts caused eating other peoples streamers secret Paul Smiths mass-produced Dragonsquality control inspections Ink lines indicate gluing area stab left bare Moire Smith checks five-in nose alignment gauge FOAM ASSEMBLY FIXTURE plus $3 postage Simplex 143 Richmond Street El Segundo CA 90245 Crocket/FAI winder converted purchaser English hand drill die cast nylon case completely encloses metal gears Thrust load carried special ball thrust race crank supplied rather short can easily replaced longer made bar stock winding knob appears too small might want replace drill chuck furnished discarded replaced wire hook Parts instructions conver sion included Price $2400 plus $285 freight Crocket P0 Box 12600 Fresno CA 93778 $2950 plus $295 freight FAI Model Supply P0 Box 3957 Torrance CA 90510 Bob Meuser 4200 Gregory St Oakland CA 94619 Dragon/Smith Continued page 61 extinguisher water bucket handy Heat point wire red hot Set torch down release paper clip wire should pierce straight hole through blank can make hole larger smaller varying temper ature wire Excessive heat can cause oversize hole too little heat can result wire wandering off center may well pierce four sets youre pierce 5-in tip blanks Next comes hot-wire cutting Clear off large enough area cores lay flat bench blank templates held square bench templates square leading edge nail templates foam Always keep same side up avoid creating warp templates arent quite symmetrical Adjust transformer give good clean cut dragging wire making too wide cut Practice some scrap After cutting spar notches disconnect wire thread through pierced hole Cut void disconnect wire again pull Out wire scrap Use same nail holes align airfoil templates Airfoils cut four separate passes starting always spar notch now have fixture front spar slot earlier models front spar slot cut manually-held straightedges Tips cut airfoil template tip-cutting fixture Cut top first bottom removing top scrap sure position both template center line pivot point exactly 1 above base Glue outboard wing tips outboard wings time Position insert wing tip templates inboard tip cut out insert Glue leadout mount tip glue tip inboard wing Sand cut Y8 off top scrap save install later Use Titebond glue joints should also make two 24-in assembly fixtures time Use airfoil templates cut two cradles foam make clear ance notches engine mount tail required one-picce fuselage cut furring strip length glue pine spruce spacers bring front end up dimension 125 dry file spar notches two-piece fuselage file bellcrank-mount notches inapiece in balsa glue x -in spruce both top bottom dry cut center rib tail boom Sand center rib match airfoil sand tail boom fit rib Using center rib alignment glue 3/16 capstrips tail boom dry sand off excess glue drill Introducing New H S Hornet 42 CID 6 1/3 HP Only 6 1/4 lbs New AMA 1 982-83 Rules 44 Limit -- Make 42 CID Legal 5 1/2 center top cylinder head 3 1/2 center side carb Perfect 1/4 scale P-51 1/3 Pitts Very smooth running Like Quadra Optional twin-stack nrclfln Smoke cnsjoitntnlahlo Sit oh 5 en o sea lab Saabln-ing pioton Icr higher cotnpnssion s tile Optional choho Enan hand stoning Spocial clone- coopind heh-tnnoitn oentnm lot moo AF adjatior Solid- know teen macnt op tional radial soppottsatas[ Rotter Ibroot- hearing noolosionly tnan model ainonft Youll Love Partner An updated version popular engine Note improve ments made especially mini ature aircraft use roller thrust bearing double-ring piston soark olug location low 13 1/21 S more power output LIMITED TIME OFFER LIST $14995 SALE $9995 seal knits qinnar Fnwsr-bnlnncnd IihO-wnightwink starlnr toed geanes finebentReact-date prop bob MORE HORNER SPECIAL PART RETAIL SALE 772$24955$75900 77927200$77555 7777250059995 7087250059995 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 79 ROPER ENGINE NEW Sale Last) 79 ENGINE NUB 8 MOUNT PACK 79 USEO DEMO ENGINE BALENCED 6BOLT HUB Repay Patnar N Ouad4 PROP ORILL JIG 709 779 770 7077495 702$7795 So compact measures much larger Quadra Partner engine Comes complete built choke 6 bolt prop hub Radial mount available twin stack INTRO $19995 SALE 1255 7200 2455 7555 500 7595 755 2 75 Write yr CALL Seed 20c Stamp CatalogWill Ship Orders Same Day cODUPSAdd 54 shipping per engine HOR N ER SALES INC Rt 2 Box 9 300 Dixie Hwy. 312 946-2515 Beecher IL 60401 PEANUT-PEOPLE PRESENT PEANUT SCALE MODELS MuSTANG MILES M-18ZERO DRuINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY M-lO Rubber Powered Balsa Tissue Kite $595 SPORT MODELS PRAIRIE BIRD 4 KIT $595 BABY ACE$649 ONE NITE 20$095 ONE NITE tO$595 STRINGLESS WONDER$495 PECK ROG$195 RUBBER OR 00-2 POWERED BUILDING NEEDS V PROPS TISSUE RUBBER WINDERS BLADE SHARPENERS BEARINGS PROP SHAFTS LUBE WASHERS WHEELS FUSE CO2 MOTORS BOOKS PLANS MORE ADVENTURE MODELS IPONY BLIMP ttFTRICAIRSHIP -KIT $24900 COMPLETE CATALOG $100 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS PeckPeIymers SILK 5/YL $445/rD RedYelIow Royul Blue Fine Quality Model Building Any Length Max 5OYd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SIIIPPINGt ADO 50 FOREIGN 150/ORDER NY RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROADn NEW CITY NY 914- 634-850010956 P 0 BOX 2498-MA LA MESA CALIF 92041 PHONE 714 469-8075 714 442-4630 February 1 982 1 25 List $28995 Enginenub Shown wan option al mount & choke SALE $17995 RAOIAL MOUNTRapar 378 79 703 RAOIAL MOUNT Partner 723 TWIN STACK EXHAUST 37 8 Kiarita 705 TWIN STACK EXHAUST Partner Oaadra 720 CHOKE ASSEMBLY Parmer 5 Ooaadraj 727 9500 3955 BRITE SPINNER Repec Part N Quad 722 6500NEOPRENE GAS LINE Per Feet707 2500 RESISTOR SPARK PLUG RCJ-6 773 BIG PROPS VAILABLEI Finished Balanced Weed Aviation Jewelry Custom Made Reproduce Plating Gold Rhodium Bright Nickel White Metal Molding Largest Aircraft Jewelry Selection World Also flight School wings mylar decals jacket patches novelties Plus Fine Hard-Fired Enamel er Special priCRO Re volume orders Call write today Simi-Air214 596-3505 19107 Creeks Dr. Dallas TX 75252 r CakQie R/C 0 VAN NUYS CA 91408 SPORT CARS PO BOX R/C GOODIES 3 II PORSCHEPORSCHE 917K BMW-MI IU U Iw 111/21nIg15-3/4inCHARGER15-3/4inI $6495Reg $7995$995Reg $8295 InI $4295SPEC$5295.-CH TXSPEC$5495 flu CHARLIES NEW 1/12SCALE R/C CARS COMEASSEMBLEDREADY TO RUN COMPLETE WITH 2-CM TRANSMITTER AND WITH RECEIVER AND SERVOS IN LED 27 MHZ ONLY BATTERIES NOT INCLUDED DECALS ARE FURNISHED CARS FEATURE FULLY PROPORTIONAL STEERING WITH AUTOMATIC NEUTRAL PLUS VARIABLE SPEED CONTROL BOTH FORWARD AND REVERSE PORSCHE 935 AND BMW-Mi ALSO HAVE OPERATING R/L TURN SIGNALS PLUS STOP LIGHTS LOW POWER TRANSMITTER BELOW 100 MW REQUIRES NO LICENSE FUN FOR THE WHOLE FAMILYI CATALOG 6W L L70Fore - SHIPPING -$400 USA CAUF RESIDENTS ADD SALES TAX NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed Aotomatieelly align fuselage structures ate built strings measuring eyeballing Simply slide four centeting brackets track until align firewall tail uint two bulkheads Clamp fuselage together lightly mith rubberbands structure mill thee straight track ucaurnmoduIesmrudusuetufoufS Price 2995 ILI Miter Master Miter Master tool designed enable crafts man make perfect joists mood accurately sanding pre-setangles ThesguaringfencnA allowoforprecisegO angles atd retracts below surface Any angle cay beset triangular guide using adjacent side complement angle mill turmed making invaluable truss construction new cyanoacrylate adhesives require accurately fitted loints achieve full strength Miter Master mill enableyso make easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 Pnce $750 Ausembled bound 503 357-2732 Navy Best Ducted Fans SKYRA Y F4D- Plan FormDesigned Bill Effinger Its f Radio Control SKYNAY NAVY F4D1 Scale Ducted Fan RIO RK-20 Fan Unit ong Plan Set RODF-1 $1995 Prices Complete Plana Sub Assembly Detailed Parts Liats Add $200 Mailing Tube Send Brochure Details new designs & great things come Send $100 refundable information two assembly bolts 6-32 x 2-in Glue upper lower bellcrank mounts peg -in dowel Remember peg goes through center rib tail boom Round off aft end tail boom cut stab slot Motor mount Glue clamp hardwood beams center rib fuselage drying add two vertical spacers dry glue clamp 1/32 outboard ard plywood doublers outboard doubler must high-strength plywood such Sigs inboard doubler can lighter 3-ply type such supplied Balsa USA Sand motor mounts doublers shape drill motor bolt holes 9/64-in tank wire hole 1/16-in dowel holes 5/32-in Install sand dowels smooth Using Dremel tool end mill cutter fit engine mount engine Mix up small batch Hobbypoxy Formula 2 warming heat gun stirring stick until thins out consistency clear dope Spread warm glue over motor mount being sure get bolt holes Apply heat finger-paint smooth final application heat will remove finger prints Hang assembly nose-down dry Control system system designed re use mind Fox 2-in bellcrank provides adequate stability better strength less weight popular 3-in model Cut two -in sections 3/32-in tubing leadout guides slip onto full-length pack Perfect BC leadout cable Cut two 1-in sections 1/16in brass tubing bushings slip onto ends bend horseshoe shape insert bellcrank bind copper wire solder leadouts cut terminated after final assembly airplane one-piece model uses Du-Bro 30-in threaded pushrod Z-bend bellcrank end two-piece version uses same rod cut behind trailing edge short length 3/3 2-in brass tube tapped 2-56 thread bound soldered front end terminated control horn soldered clevis Fox metal control horn used heavy-duty pushrod guide fabricated Vs-in tubing bound soldered piano wire screwed epoxied fuselage failure guide could cause loss control need Tail canopy canopy rudder made Ye balsa covered before installa tion stabilizer /a balsa n spruce spar trailing edge elevator also a 1/32 plywood patch top mount control horn prevent splitting along grain Mark gluing area felt-tip pen cover hinge stab elevator before assembly use either Fascal Mono Kote both covering hinges iron-on hinge method described April 1979 Model Aviation has used complete success models since article published Assembly Glue front vertical spar outboard wing taping masking tape Sand runs motor mount redrill -in mounting bolt holes recheck engine fit Glue outboard wing fuselage center rib youre building two-piece model Use two chains rubberbands hold assembly together drying Some scrap cardboard under bands needed protect foam wing tip drying can install stab 126 Model Aviation LGLOW lireb cdl PLUGS 0 Blow Proof Seal OSix Types 3 Heat Ranges S Longer Life S Flash Starting Only $120 SWANSON Aiwe PO Box 1517948 Wayne NJ 07470 eAmerican made Schnuerle ports eDouble ball bearing sPerry carburetor eForged & domed piston 0 Forged &rod 0-ring sealed back cover lnvestment cast crankcase Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA cA 91107 213 359-0016 795-9821 assembly set up controls rubberbands can removed fit inboard wing onto model may require several tries get proper clearances cut controls motor mount assembly fixture simply two 24-in foam slabs airfoil shapes cut wood plank some waxed paper whatever assorted weights handy Glue inboard wing spars airplane Titebond place model between waxed-paper-covered foam cradles stack plank weights top wing tip should against wall can press against other get good tight joint next day remove model fixture install leadouts pinned balsa inserts wire wickets glued epoxy Hot Stuff baking soda scrap foam now re-inserted one-piece model also needs foam fillers between wings Ask GMP dealer details3U CRAFTSMAN HO TEL 213-992-0195 GMP GORHAA4 MODEL PRODUCTS CALABABAB CA 91305 TVVX 9104945833 February 1982 127 RJL [the ULTIRTE fluing machine K61 Suggested Retail $14800 Muffler Included New Expandable concept R/C Helicopters Competitor will fly 45 50 60 size engines model can take novice flying winning AMA expert class Advanced design features never before seen RIG Helicopter Triple ball bearings main tail rotor hubs5Light weight metal construction Autorotation standard5Low cost parts aControls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Dual ball bearing tail pitch controlSpiral hypoid gears main tail drives WHAM SHOW 82 Dont miss greatest Radio Control Show East Westchester County Center White Plains NY fts 14th annual show its sure biggest best ever Keep fleet last week end Febma19 open 1992 WRAMs Shew going te largest yet Well seer 150 manufacturers ether enhibi tors hare already signed up bring eserything thatneemin hobby . hits engines radios accessories neery thing betweer farrtous Swap Shep will lull operatise thousands ot items including built-up planes almest sew radios engines on en sowething just about eseryone Static Cumpetltlue Make sum latest creation tinished ep ard polished poell hare chance take home et dozens troyhies offered eseef 5 rOSTuuIuso r roC sours rusT s,u r5050 500 50005 0050 ursoso Curs stubS Foss rrLoo 5050 Judging taken ylaoe Suraae utternoon Entries acceyted until 12 soon Sunday Synural udmisuien area will prosided en 501 h days tsr static display sontentanto city Suilt-sp models [ BROWN A-23 CO-2 TINY PEANUT CO-2 ENGINE ENGINE $359S CHARCEN 5995 3/4 COMPLETE CATALOG $100 PHONE 714 469-9975 er 442 4838 Peck-Pelyiners BOX 2498-MA LA MESA CALIF 92041 over fuselage two-piece model needs balsa fillers behind spSrs dry give whole wing light sanding blend parts together remove glue runs Clean wing soft brush vacuum cleaner Apply nylon strap ping tape shown plans essential prevent flexing breaking glue joints may also want add strip tape near leading edge prevent streamers cutting too far foam Add AMA numbers other decorations before covering Covering Very low-heat material needed melting foam Cut four pieces 25 x 12 allow overlapping tips center leading trailing edges Lay piece cover ing over one-quarter wing iron line down spar Work iron away line toward leading trailing edges will keep air bubbles being trapped under covering Cut slits covering laps around tip edges also helps prevent wrinkling remaining three sides same way fuselage one-piece models needs built up foam turtledeck capped balsa strip front strip needs tacked place Hot Stuff remainder clamped place under spruce strip glued hegisfoution 01 models sill start &30 am mooring SWAP SHOP WROMs Soap Shop has some see 51 major show altruc tiers thOusands 01 irdluidual items charging harde help olimirute registration Orssh 1502 group Shop ciii proviSo tsr pro regintratier terms seoniur forms nerd neltuodressed stamp ed enselepe JeOr shinIer 4 sever Rd Luoshmunt NY 10530 SPECIAL NOTE pearthere ciii Seer restriotises rumser St bsiltup coduls registrant nay place Scap Shop ruorrrrrtarrratisr crOOr 00 CurS 5005cr 55 Cneoeicr no cross ruirr 5Y tdWa 19041 mO-5usr cEnecopenEe fuels eEfSMOSSLEe5 50 lebruary 20/21 lOAM to6PM SCL I ScALE DRAWINGSIA PHOTOS BOOKLETS iG jREPLA-T2CH asSINTERNATIONAL 1931 CATALOGS $200 49500 IVtC KENZIE HIFVY ____________ VIDA OREGON 97489 Titebond Fuel-proof joint between covering motor mount warmed Hobbypoxy Cover fuselage plastic film Install pushrod guide rudder canopy fuel tank wires Fuel tank construction Materials 010-in brass shim stock 3/32 -in OD brass tubing Sears 60/40 solder Kester soldering paste flux Weller electric solder ing gun rather torch used wood form shape tank helpful essential Cut out three parts main tank solder front seam add top bottom Sharp edges should filed smooth taking care clean up lead dust Insert two filler tubes pressure-test under water tank airtight drill four holes outboard side two front Install fuel feed air vent tubes Make chicken-hopper out short piece 9/16-in tubing shim stock lid File bottom hopper tight fit tank solder place Note hopper Vs above centerline compensate richening out inverted Pressure-test tank under water again Clean tank hot water baking soda install Dragon foam rubber pad 128 Model Aviation N underneath rubber tubing over tank wires protection fuel filter may need frequent cleaning first new tank Engines Fox Combat Special Mark III has standard engine Dragon Future models will feature Mark IV have yet opportunity test Supertigre G2 have used some loss speed 05 36 has used some success local contests OS equals Fox speed adds too much weight good maneuverability opinion Fox consistently pulls Dragon 92 94 mph 15% nitro exceptional engine able break 100 several times 30% get under 90 something wearing out modifications replace rear bearing Hoover-NSK R8 78 use Supertigre needle valve assembly venturi insert wrapped polyethelene plastic form air seal head clearance set 015 018 essential good performance Break-in via bench running 9-6 prop cut 8 Lapping required certain very tight replacement pistons sleeves like Fox becasue runs right Out box doesnt take time away important things like fuel tanks Flying completed airplane should weigh 265 ounces balance 25% chord slightly outboard thrust line sidemounted engine leadout position offset wing provide line tension necessary recommend tip weight engine out-thrust rudder offset Make initial test flight engine set rich side until become familiar needling engine chicken hopper tank Foamies can become warped covering assembly check out use iron trim tabs correct warp plane feels too sluggish go aft CG control Ive never come Out tail-heavy yet Top Flite 9-5s 9-6s cut 8-6 work well have four Dragons tested trimmed out should ready contest CL Aerobatics Paul Continued page 62 Bill Lindemann Metuchen NJ wrote question come results WinstonSalem CL Championships showed Novice Beginner scores 454 442 431 Well thats good question does show voluntary placing usually allow contestants seed themselves category choice doesnt always work out numbers However lets also remember what 454 region may another because ofjudging differences abilities competitors etc scores shown Advanced Expert categories results contest sent writer however can surmise Experts probably scored 520 over Advanced falling somewhere between 450 500 What says PAMPA categories dont always work right down line since contest management still refuses have four cate gories Winston-Salem meet will necessarily some place scores will off usual scale place Richard Byrons records pilots scores would come handy contest management reference guide Perhaps could have copies pilots rankings sent major NOT JUST ANOTHER CATALOG novice tips experts expert thousands products specifica tions photos help decide make hobby enjoyable everybody interested RI Its standard reference book Will Ever Need Available through local hobby shop use coupon Yes send copy new RADIO CONTROL BUYERS GUIDE D Enclosed $950 $795 plus $1 55 postage us & canada dians Send us funds VA residents add 4% sales tax D charge D Mastercharge D visa charge No________________________ Exp Date _________________ Name Street city State Zip Return Boynton & Associates Inc clifton House clifton virginia 22024 mE i ion special MK III 84 Mono 78 5pn Weight 18 lbs2195 Travel Ai 2000 105 Classc Scale 5plann 23 lbs2295 Travel Ai 4000 99 9adal ing Classic Spe 23 lbs2295 Fokker 0-VII 88 Gernan WW Fglsn Spe 23 lbs2495 Ceeing Scan Sopsnth Pcp 80 Spn Sopacth Tnpnbocnd 80 Tnplane Waco ATO Lyjack Vesoc 90 8placn Nncpo-t 11 Sebe 85 Splanc 3 5 Scale Fockec 081 72 Tcplace Plans shipped U PS Parcel Post Please add $300 torpostaqe liandlino fastest service send postal inoney order No C 00 orders sent BEHRENS PLAN SERVICE 31-27 Healy Ave Far Rockaway NY 11691 in212 337-6987 February 1 982 1 29 Quick Silver $1197 er Bearing Inol Post ste lingSyringe Dispenser Field Repairs No Waste 22000 psi tensile strength Low melting point open flame lighter soldering iron Will Join 14 different combinations metals Wont Blacken Tarnish Seining South THS Hobby Distributors PO Box 914 Rosewell GA 30077
Edition: Model Aviation - 1982/02
Page Numbers: 58, 59, 60, 61, 125, 126, 127, 128, 129
SLOW COMBAT popular control line event parts country Despite its strong following has almost com plete absence kits published plans probably result continuous series rules changes have eliminated coin petitive designs two years 1977 inboard tanks very short noses prevailed 7 8-79 rules stretched noses 5 deregulating tank location delet ing landing gears 1980-81 book outlawed forms inboard tanks Fortunately no changes 1982-83 will disallow equipment Considering rules instability its easy see no has time produce kit magazine article positive effect has interesting variety equipment contest Fuel tanks main factor sets Slow Combat apart other events require ment suction fuel system Fast FAI Combat contestant simply opens up venturi wide possible hooks up pressure tank fuel tank venturi size key factors make contestant competitive another Slow Combat jobs faster tighter-turning other models run suction Sport Stunt setups work event Prior 1978 went through series con ventional uniflow clunk tanks really satisfactory equal compe tition June 1978 issue Model Aviation contained article Don Jehlik chicken hopper tanks completely changed life least respect Slow Combat built chicken hopper soldered onto Perfect square tank first test flight perfectly smooth steady run start finish havent used other form suction tank since principle engine draws fuel tiny hopper thus unaffected sloshing G-forces decreasing volume main tank Longer faster smoother runs result no rich-at-the-start/lean-atthe-end runs no saging enter tight maneuver chicken-hopper tank vital success Dragon too fast tight-turning work conventional tank Airframe design Combat contests won RUBRER TUBING STRAPPING TERE FRONT SPON ITTI TANK FRONT VII SOLID HOLLOW RORFECT UROMMET I/GNALSA INSERT PERFECT H DO L LOW SLUG 5 BALSA INSERT FOAM CUT 0 332 BRASS TONINGSECTrON A-AOWED ROCK WIRE WICKETS EPOGIED IN PLACE INSERT TEMPLATE 2 BEER RIB 0 REOD -VA PLY I2 I2 I-V4 B A-AG BLIND NOTS V2 F TIP TEMPLATE IB PLF NOTCH CSRE TEMPLATES OSE FIROT P OR PLY 714ROOT TEMPLATE ALAWYS KEEP TIE ISAME SIRE OP I4 VA beating series four six opponents Quality airplanes needed win match quantity models needed win contest 1976 World Championships saw British solution challenge foam Super star models featured balsa hardwood center sections foam wings crashes 4 like thought really tearing up competition heres fine weapon Slow Combat Dragon has proven itself well battle Since usually need whole fleet models perhaps better word platoon competitions author describes series imaginative mass-production techniques Smith 58 Model Aviation ar JOhnsOfltOOK ipic55 101I.levulano uauuflguxc Finals 1980 Nationals uragon nas Impressive contest record FULL-SIZE PLANSAVAILABLE SEE PAGE 140 IR PLY ENIDRE MEER2TS VIE P53/JO 53/RE 1222 MEUSTS I/BEI-VBs 10-02 PLYWOLO IIH HOLW# 6 SPRUCE SPAR CAREES2 BELLCRAMn- - RAPPENG TAPE D5IBRO 30 TPREAOED PUSHROD 1/16 BRASS TUBING RING LEADOUTREUCRANI LEADOUT DETAIL 08 BALSA CANOPY LS SIDE VIEW ONWA SPE AL NO BSAOU PPE GH HANRE OP WING TIP CUTTER 3/As 2/2 P82 OR SPRUCE -NICI-WSRE WIRE Iii ill________ ROLLOW /A STRASPENG TAPE JI HALLOW Li LOWER CONTROL MOUNT 2I I/B PLY UPPER COESTROL MCERJT -3/An I/O I/B TOP VIEW UTRAPPNS TAPE TOP BOTTOM HALLOW ROLlS IS TA6 DRAOoN DESIGN ED 8 DRAWN BY PAUL SMITHTO TR22ASFURMER TRACING BY JOE DEMARCOTPANS WIPECCL URUNG BRUCEI/A I-I/O PLY I/As 02 BALSA CAPUTRIP 10 FOAM TURCOE CECICI/B BALSA 01 INSTALL AFTER WINS ISV COVERED I/RV2s2-3R PLYII/SS 3/A WOOD {NICRROME FOS COUTROL HORNSAEK ASEONNECT OURRO CLEVOI/S SCSLE VAEI/O33/AFOAM CUTTEIiI BALSA FELERFULL UCRLE ~FOAM FILLER5R BALSA DDER1/03/A PINE I/A BALSAFIRRING LEFT WING B LEADOETS REMOVESTRIP SPRACE-zz---~-3/A ALSA MARE PEWS EXTRA LEEB TREN TREE AFTER FUSE El/SO PLYTOP ORLYsB BEEN FF1150 TA EEBTER WE BEETS BNUTS3/32 ERASE TUBE TAP 2-SB TEBEAB POWLARE I25 BELSABAR B SOLEER RE EBEEST FLRARUE SOREW B AFT FURWEB BI VBELVSFROEV S/BEllS SF5588 OPTIONAL DETACHABLE TAIL foam wings frequently destroyed wood structure generally survived New foam cores installed later model service again very low cost important models flew better competition Since have built foam wings almost exclusively 1977 Dragons won Dekalb Aero-Challenge MACA #1 Slow also took 5th Nats 1979 1980 Dragons featured detach able tail sections ease transportation repair feature has entirely successful have seldom really needed dis assemble models 1981 fleet will feature permanent tails plans instruc tions cover both options two extremes Combat design eggshell3 battering ram Dragon neither An eggshell airplane extremely light big fragile airplane can Out turn competition will tolerate contact kind battering ram will fly through anything another its kind can sometimes vertical eight Dragon best effort striking compromise between two Materials lumberyard get slab PIVOT PONT A EXACTLY UBOVE URFATE UF TIP cUTTER ____7 3/A STRAPPENG TAPE/ CONTINUOUS WRAP OVER SPARS B AROUND WIND TIPS OVERLAP 0 ON BOTTOM FOAM TIP AL/OAR TIP CUTTING FIXTURE FOP VIEWAER AENT 3/3200 T1 IITB P1LEER ARMSOEEEEEE PEPPER LS AR BRASS- P/IS AD BRASS5 5P FLISETA0VUTBOPES0 3/32/WA111 22 AELES VIEWBEt UIE BR A55 5PM STREP 3/32. I/BS 9/IS PA TUBE BROWS B PEASR NPPER FUEL TANK Heres authors fleet pack herd Dragons set upforthe Canadian Combat ruleawith amrtnrcnr cot wkoola IndavaorvIoao So annA far manS na alone Ion Sn nroain insulating foam 2 x 8 ft 2 wide Density normally 1 lb per cubic foot Genuine Dow Styrofoam light blue stuff about twice density makes planes last fly like furniture Pick up 8-ft length urring strip dont have some scrap wood around house will also need 6 x 1 ft piece plywood particle board foamcutting fixtures either fuselage type youll need 4 hardwood motor mounts plywood 5/32 dowels x 3 balsa 36-in spruce / x qd erfect leadout wires Fox 2-in bellcrank control horn 1/16-in 3/32-in -in brass tubing Dubro 30-in threaded pushrod clevis 4-40 x l-in bolts blind nuts detachable tail also requires 1 x balsa /16 x ce 6-32 x 2-in bolts blind nuts solder-type clevis Titebond used joints use Hot Stuff wood-to-wood Hobbypoxy Formula 2 fuel-proofing motor mount high-stress areas Use low-temperature covering such Solarfilm GBC laminating film foam wings High-temp material such MonoKote Fascal good fuselage tail canopy models require no paint Nylonreinforced strapping tape such 3M used prevent flexing wing Foam-cutting equipment important piece equipment power source have used battery charger past now have American Flyer train transformer cutting bow fully explained plan wing tip cutter As shown photograph drop-wire fixture vertical plank series eyelet guides exactly 1 surface An eighth-inch piano wire held large paper clip being heated An alumi num heat shield protects plank torch Vertical alignment essential evening spent equipment will pay handsome divi dends time saved future models Cut airfoil core templates plywood Use 5/64-in nails align templates foam Mark foam carpenters square felt-tip pen model requires four foam blanks follows 18 x 10 60 Model Aviation Wingtip ieadoutswhich arecutand terminated aftereievatortravel adjusted Doing operation last results lengths Foam-and-balsa turtledeck glued clamped place after wing covered Spruce strip protects balsa clamps chicken hopper tank under construction Large tube hopper small fuel feed Completed tank R has vent plugged leak test Controls Dragon bushed Fox belicrank pushrod guide re inforced elevator one-piece Du-Bro threaded pushrod Fox metal horn Installation pushrod guide must taken seriously Sloppy work point can ruin planes chances competition Heating tip wire drop-wire fixture preparation boring lateral hole wing blank See text CUTTING WIRE FOAM BLOCK WIREHOLESHANDLE SUPPORT BLOCK END STOP 3---BASE RIB TEMPLATE ASSORTED WEIGHTS WALL OR/ COLUMNWOOD PLANK 2xIOx APA NiFIW ci IADELCOFOAM ASSEMBLY r I II II II / URES ITABLE FOAM WING ASSEMBLY METHOD rAPPLY PRESSURE HERE TO SQUEEZE WING HALVES TOGETHER /1 WING TIP CUTTING FIXTURE MACA Nets Smiths campaigned Dragons detachable tails No problems encountered wIth system two years flyIng 17 x 10 two 5 x 10 can get four models 8-ft slab plan building foamies make big mitre box cut blanks have someone hold straightedge vertically against side cut blanks Take blanks drop-wire fixture well-ventilated area Clamp fixture true vertical position using level core tem plate align blank under wire Keep fire Continued page 125 February 1982 61 can take eyes off lovely Moire Smith look drop-wire fixture rack completed Dragons background 1981 model Dragon like 1981 VW best changes internal Pinstriping tape along leading edge helps protect against dings cuts caused eating other peoples streamers secret Paul Smiths mass-produced Dragonsquality control inspections Ink lines indicate gluing area stab left bare Moire Smith checks five-in nose alignment gauge FOAM ASSEMBLY FIXTURE plus $3 postage Simplex 143 Richmond Street El Segundo CA 90245 Crocket/FAI winder converted purchaser English hand drill die cast nylon case completely encloses metal gears Thrust load carried special ball thrust race crank supplied rather short can easily replaced longer made bar stock winding knob appears too small might want replace drill chuck furnished discarded replaced wire hook Parts instructions conver sion included Price $2400 plus $285 freight Crocket P0 Box 12600 Fresno CA 93778 $2950 plus $295 freight FAI Model Supply P0 Box 3957 Torrance CA 90510 Bob Meuser 4200 Gregory St Oakland CA 94619 Dragon/Smith Continued page 61 extinguisher water bucket handy Heat point wire red hot Set torch down release paper clip wire should pierce straight hole through blank can make hole larger smaller varying temper ature wire Excessive heat can cause oversize hole too little heat can result wire wandering off center may well pierce four sets youre pierce 5-in tip blanks Next comes hot-wire cutting Clear off large enough area cores lay flat bench blank templates held square bench templates square leading edge nail templates foam Always keep same side up avoid creating warp templates arent quite symmetrical Adjust transformer give good clean cut dragging wire making too wide cut Practice some scrap After cutting spar notches disconnect wire thread through pierced hole Cut void disconnect wire again pull Out wire scrap Use same nail holes align airfoil templates Airfoils cut four separate passes starting always spar notch now have fixture front spar slot earlier models front spar slot cut manually-held straightedges Tips cut airfoil template tip-cutting fixture Cut top first bottom removing top scrap sure position both template center line pivot point exactly 1 above base Glue outboard wing tips outboard wings time Position insert wing tip templates inboard tip cut out insert Glue leadout mount tip glue tip inboard wing Sand cut Y8 off top scrap save install later Use Titebond glue joints should also make two 24-in assembly fixtures time Use airfoil templates cut two cradles foam make clear ance notches engine mount tail required one-picce fuselage cut furring strip length glue pine spruce spacers bring front end up dimension 125 dry file spar notches two-piece fuselage file bellcrank-mount notches inapiece in balsa glue x -in spruce both top bottom dry cut center rib tail boom Sand center rib match airfoil sand tail boom fit rib Using center rib alignment glue 3/16 capstrips tail boom dry sand off excess glue drill Introducing New H S Hornet 42 CID 6 1/3 HP Only 6 1/4 lbs New AMA 1 982-83 Rules 44 Limit -- Make 42 CID Legal 5 1/2 center top cylinder head 3 1/2 center side carb Perfect 1/4 scale P-51 1/3 Pitts Very smooth running Like Quadra Optional twin-stack nrclfln Smoke cnsjoitntnlahlo Sit oh 5 en o sea lab Saabln-ing pioton Icr higher cotnpnssion s tile Optional choho Enan hand stoning Spocial clone- coopind heh-tnnoitn oentnm lot moo AF adjatior Solid- know teen macnt op tional radial soppottsatas[ Rotter Ibroot- hearing noolosionly tnan model ainonft Youll Love Partner An updated version popular engine Note improve ments made especially mini ature aircraft use roller thrust bearing double-ring piston soark olug location low 13 1/21 S more power output LIMITED TIME OFFER LIST $14995 SALE $9995 seal knits qinnar Fnwsr-bnlnncnd IihO-wnightwink starlnr toed geanes finebentReact-date prop bob MORE HORNER SPECIAL PART RETAIL SALE 772$24955$75900 77927200$77555 7777250059995 7087250059995 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 79 ROPER ENGINE NEW Sale Last) 79 ENGINE NUB 8 MOUNT PACK 79 USEO DEMO ENGINE BALENCED 6BOLT HUB Repay Patnar N Ouad4 PROP ORILL JIG 709 779 770 7077495 702$7795 So compact measures much larger Quadra Partner engine Comes complete built choke 6 bolt prop hub Radial mount available twin stack INTRO $19995 SALE 1255 7200 2455 7555 500 7595 755 2 75 Write yr CALL Seed 20c Stamp CatalogWill Ship Orders Same Day cODUPSAdd 54 shipping per engine HOR N ER SALES INC Rt 2 Box 9 300 Dixie Hwy. 312 946-2515 Beecher IL 60401 PEANUT-PEOPLE PRESENT PEANUT SCALE MODELS MuSTANG MILES M-18ZERO DRuINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY M-lO Rubber Powered Balsa Tissue Kite $595 SPORT MODELS PRAIRIE BIRD 4 KIT $595 BABY ACE$649 ONE NITE 20$095 ONE NITE tO$595 STRINGLESS WONDER$495 PECK ROG$195 RUBBER OR 00-2 POWERED BUILDING NEEDS V PROPS TISSUE RUBBER WINDERS BLADE SHARPENERS BEARINGS PROP SHAFTS LUBE WASHERS WHEELS FUSE CO2 MOTORS BOOKS PLANS MORE ADVENTURE MODELS IPONY BLIMP ttFTRICAIRSHIP -KIT $24900 COMPLETE CATALOG $100 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS PeckPeIymers SILK 5/YL $445/rD RedYelIow Royul Blue Fine Quality Model Building Any Length Max 5OYd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SIIIPPINGt ADO 50 FOREIGN 150/ORDER NY RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROADn NEW CITY NY 914- 634-850010956 P 0 BOX 2498-MA LA MESA CALIF 92041 PHONE 714 469-8075 714 442-4630 February 1 982 1 25 List $28995 Enginenub Shown wan option al mount & choke SALE $17995 RAOIAL MOUNTRapar 378 79 703 RAOIAL MOUNT Partner 723 TWIN STACK EXHAUST 37 8 Kiarita 705 TWIN STACK EXHAUST Partner Oaadra 720 CHOKE ASSEMBLY Parmer 5 Ooaadraj 727 9500 3955 BRITE SPINNER Repec Part N Quad 722 6500NEOPRENE GAS LINE Per Feet707 2500 RESISTOR SPARK PLUG RCJ-6 773 BIG PROPS VAILABLEI Finished Balanced Weed Aviation Jewelry Custom Made Reproduce Plating Gold Rhodium Bright Nickel White Metal Molding Largest Aircraft Jewelry Selection World Also flight School wings mylar decals jacket patches novelties Plus Fine Hard-Fired Enamel er Special priCRO Re volume orders Call write today Simi-Air214 596-3505 19107 Creeks Dr. Dallas TX 75252 r CakQie R/C 0 VAN NUYS CA 91408 SPORT CARS PO BOX R/C GOODIES 3 II PORSCHEPORSCHE 917K BMW-MI IU U Iw 111/21nIg15-3/4inCHARGER15-3/4inI $6495Reg $7995$995Reg $8295 InI $4295SPEC$5295.-CH TXSPEC$5495 flu CHARLIES NEW 1/12SCALE R/C CARS COMEASSEMBLEDREADY TO RUN COMPLETE WITH 2-CM TRANSMITTER AND WITH RECEIVER AND SERVOS IN LED 27 MHZ ONLY BATTERIES NOT INCLUDED DECALS ARE FURNISHED CARS FEATURE FULLY PROPORTIONAL STEERING WITH AUTOMATIC NEUTRAL PLUS VARIABLE SPEED CONTROL BOTH FORWARD AND REVERSE PORSCHE 935 AND BMW-Mi ALSO HAVE OPERATING R/L TURN SIGNALS PLUS STOP LIGHTS LOW POWER TRANSMITTER BELOW 100 MW REQUIRES NO LICENSE FUN FOR THE WHOLE FAMILYI CATALOG 6W L L70Fore - SHIPPING -$400 USA CAUF RESIDENTS ADD SALES TAX NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed Aotomatieelly align fuselage structures ate built strings measuring eyeballing Simply slide four centeting brackets track until align firewall tail uint two bulkheads Clamp fuselage together lightly mith rubberbands structure mill thee straight track ucaurnmoduIesmrudusuetufoufS Price 2995 ILI Miter Master Miter Master tool designed enable crafts man make perfect joists mood accurately sanding pre-setangles ThesguaringfencnA allowoforprecisegO angles atd retracts below surface Any angle cay beset triangular guide using adjacent side complement angle mill turmed making invaluable truss construction new cyanoacrylate adhesives require accurately fitted loints achieve full strength Miter Master mill enableyso make easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 Pnce $750 Ausembled bound 503 357-2732 Navy Best Ducted Fans SKYRA Y F4D- Plan FormDesigned Bill Effinger Its f Radio Control SKYNAY NAVY F4D1 Scale Ducted Fan RIO RK-20 Fan Unit ong Plan Set RODF-1 $1995 Prices Complete Plana Sub Assembly Detailed Parts Liats Add $200 Mailing Tube Send Brochure Details new designs & great things come Send $100 refundable information two assembly bolts 6-32 x 2-in Glue upper lower bellcrank mounts peg -in dowel Remember peg goes through center rib tail boom Round off aft end tail boom cut stab slot Motor mount Glue clamp hardwood beams center rib fuselage drying add two vertical spacers dry glue clamp 1/32 outboard ard plywood doublers outboard doubler must high-strength plywood such Sigs inboard doubler can lighter 3-ply type such supplied Balsa USA Sand motor mounts doublers shape drill motor bolt holes 9/64-in tank wire hole 1/16-in dowel holes 5/32-in Install sand dowels smooth Using Dremel tool end mill cutter fit engine mount engine Mix up small batch Hobbypoxy Formula 2 warming heat gun stirring stick until thins out consistency clear dope Spread warm glue over motor mount being sure get bolt holes Apply heat finger-paint smooth final application heat will remove finger prints Hang assembly nose-down dry Control system system designed re use mind Fox 2-in bellcrank provides adequate stability better strength less weight popular 3-in model Cut two -in sections 3/32-in tubing leadout guides slip onto full-length pack Perfect BC leadout cable Cut two 1-in sections 1/16in brass tubing bushings slip onto ends bend horseshoe shape insert bellcrank bind copper wire solder leadouts cut terminated after final assembly airplane one-piece model uses Du-Bro 30-in threaded pushrod Z-bend bellcrank end two-piece version uses same rod cut behind trailing edge short length 3/3 2-in brass tube tapped 2-56 thread bound soldered front end terminated control horn soldered clevis Fox metal control horn used heavy-duty pushrod guide fabricated Vs-in tubing bound soldered piano wire screwed epoxied fuselage failure guide could cause loss control need Tail canopy canopy rudder made Ye balsa covered before installa tion stabilizer /a balsa n spruce spar trailing edge elevator also a 1/32 plywood patch top mount control horn prevent splitting along grain Mark gluing area felt-tip pen cover hinge stab elevator before assembly use either Fascal Mono Kote both covering hinges iron-on hinge method described April 1979 Model Aviation has used complete success models since article published Assembly Glue front vertical spar outboard wing taping masking tape Sand runs motor mount redrill -in mounting bolt holes recheck engine fit Glue outboard wing fuselage center rib youre building two-piece model Use two chains rubberbands hold assembly together drying Some scrap cardboard under bands needed protect foam wing tip drying can install stab 126 Model Aviation LGLOW lireb cdl PLUGS 0 Blow Proof Seal OSix Types 3 Heat Ranges S Longer Life S Flash Starting Only $120 SWANSON Aiwe PO Box 1517948 Wayne NJ 07470 eAmerican made Schnuerle ports eDouble ball bearing sPerry carburetor eForged & domed piston 0 Forged &rod 0-ring sealed back cover lnvestment cast crankcase Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA cA 91107 213 359-0016 795-9821 assembly set up controls rubberbands can removed fit inboard wing onto model may require several tries get proper clearances cut controls motor mount assembly fixture simply two 24-in foam slabs airfoil shapes cut wood plank some waxed paper whatever assorted weights handy Glue inboard wing spars airplane Titebond place model between waxed-paper-covered foam cradles stack plank weights top wing tip should against wall can press against other get good tight joint next day remove model fixture install leadouts pinned balsa inserts wire wickets glued epoxy Hot Stuff baking soda scrap foam now re-inserted one-piece model also needs foam fillers between wings Ask GMP dealer details3U CRAFTSMAN HO TEL 213-992-0195 GMP GORHAA4 MODEL PRODUCTS CALABABAB CA 91305 TVVX 9104945833 February 1982 127 RJL [the ULTIRTE fluing machine K61 Suggested Retail $14800 Muffler Included New Expandable concept R/C Helicopters Competitor will fly 45 50 60 size engines model can take novice flying winning AMA expert class Advanced design features never before seen RIG Helicopter Triple ball bearings main tail rotor hubs5Light weight metal construction Autorotation standard5Low cost parts aControls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Dual ball bearing tail pitch controlSpiral hypoid gears main tail drives WHAM SHOW 82 Dont miss greatest Radio Control Show East Westchester County Center White Plains NY fts 14th annual show its sure biggest best ever Keep fleet last week end Febma19 open 1992 WRAMs Shew going te largest yet Well seer 150 manufacturers ether enhibi tors hare already signed up bring eserything thatneemin hobby . hits engines radios accessories neery thing betweer farrtous Swap Shep will lull operatise thousands ot items including built-up planes almest sew radios engines on en sowething just about eseryone Static Cumpetltlue Make sum latest creation tinished ep ard polished poell hare chance take home et dozens troyhies offered eseef 5 rOSTuuIuso r roC sours rusT s,u r5050 500 50005 0050 ursoso Curs stubS Foss rrLoo 5050 Judging taken ylaoe Suraae utternoon Entries acceyted until 12 soon Sunday Synural udmisuien area will prosided en 501 h days tsr static display sontentanto city Suilt-sp models [ BROWN A-23 CO-2 TINY PEANUT CO-2 ENGINE ENGINE $359S CHARCEN 5995 3/4 COMPLETE CATALOG $100 PHONE 714 469-9975 er 442 4838 Peck-Pelyiners BOX 2498-MA LA MESA CALIF 92041 over fuselage two-piece model needs balsa fillers behind spSrs dry give whole wing light sanding blend parts together remove glue runs Clean wing soft brush vacuum cleaner Apply nylon strap ping tape shown plans essential prevent flexing breaking glue joints may also want add strip tape near leading edge prevent streamers cutting too far foam Add AMA numbers other decorations before covering Covering Very low-heat material needed melting foam Cut four pieces 25 x 12 allow overlapping tips center leading trailing edges Lay piece cover ing over one-quarter wing iron line down spar Work iron away line toward leading trailing edges will keep air bubbles being trapped under covering Cut slits covering laps around tip edges also helps prevent wrinkling remaining three sides same way fuselage one-piece models needs built up foam turtledeck capped balsa strip front strip needs tacked place Hot Stuff remainder clamped place under spruce strip glued hegisfoution 01 models sill start &30 am mooring SWAP SHOP WROMs Soap Shop has some see 51 major show altruc tiers thOusands 01 irdluidual items charging harde help olimirute registration Orssh 1502 group Shop ciii proviSo tsr pro regintratier terms seoniur forms nerd neltuodressed stamp ed enselepe JeOr shinIer 4 sever Rd Luoshmunt NY 10530 SPECIAL NOTE pearthere ciii Seer restriotises rumser St bsiltup coduls registrant nay place Scap Shop ruorrrrrtarrratisr crOOr 00 CurS 5005cr 55 Cneoeicr no cross ruirr 5Y tdWa 19041 mO-5usr cEnecopenEe fuels eEfSMOSSLEe5 50 lebruary 20/21 lOAM to6PM SCL I ScALE DRAWINGSIA PHOTOS BOOKLETS iG jREPLA-T2CH asSINTERNATIONAL 1931 CATALOGS $200 49500 IVtC KENZIE HIFVY ____________ VIDA OREGON 97489 Titebond Fuel-proof joint between covering motor mount warmed Hobbypoxy Cover fuselage plastic film Install pushrod guide rudder canopy fuel tank wires Fuel tank construction Materials 010-in brass shim stock 3/32 -in OD brass tubing Sears 60/40 solder Kester soldering paste flux Weller electric solder ing gun rather torch used wood form shape tank helpful essential Cut out three parts main tank solder front seam add top bottom Sharp edges should filed smooth taking care clean up lead dust Insert two filler tubes pressure-test under water tank airtight drill four holes outboard side two front Install fuel feed air vent tubes Make chicken-hopper out short piece 9/16-in tubing shim stock lid File bottom hopper tight fit tank solder place Note hopper Vs above centerline compensate richening out inverted Pressure-test tank under water again Clean tank hot water baking soda install Dragon foam rubber pad 128 Model Aviation N underneath rubber tubing over tank wires protection fuel filter may need frequent cleaning first new tank Engines Fox Combat Special Mark III has standard engine Dragon Future models will feature Mark IV have yet opportunity test Supertigre G2 have used some loss speed 05 36 has used some success local contests OS equals Fox speed adds too much weight good maneuverability opinion Fox consistently pulls Dragon 92 94 mph 15% nitro exceptional engine able break 100 several times 30% get under 90 something wearing out modifications replace rear bearing Hoover-NSK R8 78 use Supertigre needle valve assembly venturi insert wrapped polyethelene plastic form air seal head clearance set 015 018 essential good performance Break-in via bench running 9-6 prop cut 8 Lapping required certain very tight replacement pistons sleeves like Fox becasue runs right Out box doesnt take time away important things like fuel tanks Flying completed airplane should weigh 265 ounces balance 25% chord slightly outboard thrust line sidemounted engine leadout position offset wing provide line tension necessary recommend tip weight engine out-thrust rudder offset Make initial test flight engine set rich side until become familiar needling engine chicken hopper tank Foamies can become warped covering assembly check out use iron trim tabs correct warp plane feels too sluggish go aft CG control Ive never come Out tail-heavy yet Top Flite 9-5s 9-6s cut 8-6 work well have four Dragons tested trimmed out should ready contest CL Aerobatics Paul Continued page 62 Bill Lindemann Metuchen NJ wrote question come results WinstonSalem CL Championships showed Novice Beginner scores 454 442 431 Well thats good question does show voluntary placing usually allow contestants seed themselves category choice doesnt always work out numbers However lets also remember what 454 region may another because ofjudging differences abilities competitors etc scores shown Advanced Expert categories results contest sent writer however can surmise Experts probably scored 520 over Advanced falling somewhere between 450 500 What says PAMPA categories dont always work right down line since contest management still refuses have four cate gories Winston-Salem meet will necessarily some place scores will off usual scale place Richard Byrons records pilots scores would come handy contest management reference guide Perhaps could have copies pilots rankings sent major NOT JUST ANOTHER CATALOG novice tips experts expert thousands products specifica tions photos help decide make hobby enjoyable everybody interested RI Its standard reference book Will Ever Need Available through local hobby shop use coupon Yes send copy new RADIO CONTROL BUYERS GUIDE D Enclosed $950 $795 plus $1 55 postage us & canada dians Send us funds VA residents add 4% sales tax D charge D Mastercharge D visa charge No________________________ Exp Date _________________ Name Street city State Zip Return Boynton & Associates Inc clifton House clifton virginia 22024 mE i ion special MK III 84 Mono 78 5pn Weight 18 lbs2195 Travel Ai 2000 105 Classc Scale 5plann 23 lbs2295 Travel Ai 4000 99 9adal ing Classic Spe 23 lbs2295 Fokker 0-VII 88 Gernan WW Fglsn Spe 23 lbs2495 Ceeing Scan Sopsnth Pcp 80 Spn Sopacth Tnpnbocnd 80 Tnplane Waco ATO Lyjack Vesoc 90 8placn Nncpo-t 11 Sebe 85 Splanc 3 5 Scale Fockec 081 72 Tcplace Plans shipped U PS Parcel Post Please add $300 torpostaqe liandlino fastest service send postal inoney order No C 00 orders sent BEHRENS PLAN SERVICE 31-27 Healy Ave Far Rockaway NY 11691 in212 337-6987 February 1 982 1 29 Quick Silver $1197 er Bearing Inol Post ste lingSyringe Dispenser Field Repairs No Waste 22000 psi tensile strength Low melting point open flame lighter soldering iron Will Join 14 different combinations metals Wont Blacken Tarnish Seining South THS Hobby Distributors PO Box 914 Rosewell GA 30077
Edition: Model Aviation - 1982/02
Page Numbers: 58, 59, 60, 61, 125, 126, 127, 128, 129
SLOW COMBAT popular control line event parts country Despite its strong following has almost com plete absence kits published plans probably result continuous series rules changes have eliminated coin petitive designs two years 1977 inboard tanks very short noses prevailed 7 8-79 rules stretched noses 5 deregulating tank location delet ing landing gears 1980-81 book outlawed forms inboard tanks Fortunately no changes 1982-83 will disallow equipment Considering rules instability its easy see no has time produce kit magazine article positive effect has interesting variety equipment contest Fuel tanks main factor sets Slow Combat apart other events require ment suction fuel system Fast FAI Combat contestant simply opens up venturi wide possible hooks up pressure tank fuel tank venturi size key factors make contestant competitive another Slow Combat jobs faster tighter-turning other models run suction Sport Stunt setups work event Prior 1978 went through series con ventional uniflow clunk tanks really satisfactory equal compe tition June 1978 issue Model Aviation contained article Don Jehlik chicken hopper tanks completely changed life least respect Slow Combat built chicken hopper soldered onto Perfect square tank first test flight perfectly smooth steady run start finish havent used other form suction tank since principle engine draws fuel tiny hopper thus unaffected sloshing G-forces decreasing volume main tank Longer faster smoother runs result no rich-at-the-start/lean-atthe-end runs no saging enter tight maneuver chicken-hopper tank vital success Dragon too fast tight-turning work conventional tank Airframe design Combat contests won RUBRER TUBING STRAPPING TERE FRONT SPON ITTI TANK FRONT VII SOLID HOLLOW RORFECT UROMMET I/GNALSA INSERT PERFECT H DO L LOW SLUG 5 BALSA INSERT FOAM CUT 0 332 BRASS TONINGSECTrON A-AOWED ROCK WIRE WICKETS EPOGIED IN PLACE INSERT TEMPLATE 2 BEER RIB 0 REOD -VA PLY I2 I2 I-V4 B A-AG BLIND NOTS V2 F TIP TEMPLATE IB PLF NOTCH CSRE TEMPLATES OSE FIROT P OR PLY 714ROOT TEMPLATE ALAWYS KEEP TIE ISAME SIRE OP I4 VA beating series four six opponents Quality airplanes needed win match quantity models needed win contest 1976 World Championships saw British solution challenge foam Super star models featured balsa hardwood center sections foam wings crashes 4 like thought really tearing up competition heres fine weapon Slow Combat Dragon has proven itself well battle Since usually need whole fleet models perhaps better word platoon competitions author describes series imaginative mass-production techniques Smith 58 Model Aviation ar JOhnsOfltOOK ipic55 101I.levulano uauuflguxc Finals 1980 Nationals uragon nas Impressive contest record FULL-SIZE PLANSAVAILABLE SEE PAGE 140 IR PLY ENIDRE MEER2TS VIE P53/JO 53/RE 1222 MEUSTS I/BEI-VBs 10-02 PLYWOLO IIH HOLW# 6 SPRUCE SPAR CAREES2 BELLCRAMn- - RAPPENG TAPE D5IBRO 30 TPREAOED PUSHROD 1/16 BRASS TUBING RING LEADOUTREUCRANI LEADOUT DETAIL 08 BALSA CANOPY LS SIDE VIEW ONWA SPE AL NO BSAOU PPE GH HANRE OP WING TIP CUTTER 3/As 2/2 P82 OR SPRUCE -NICI-WSRE WIRE Iii ill________ ROLLOW /A STRASPENG TAPE JI HALLOW Li LOWER CONTROL MOUNT 2I I/B PLY UPPER COESTROL MCERJT -3/An I/O I/B TOP VIEW UTRAPPNS TAPE TOP BOTTOM HALLOW ROLlS IS TA6 DRAOoN DESIGN ED 8 DRAWN BY PAUL SMITHTO TR22ASFURMER TRACING BY JOE DEMARCOTPANS WIPECCL URUNG BRUCEI/A I-I/O PLY I/As 02 BALSA CAPUTRIP 10 FOAM TURCOE CECICI/B BALSA 01 INSTALL AFTER WINS ISV COVERED I/RV2s2-3R PLYII/SS 3/A WOOD {NICRROME FOS COUTROL HORNSAEK ASEONNECT OURRO CLEVOI/S SCSLE VAEI/O33/AFOAM CUTTEIiI BALSA FELERFULL UCRLE ~FOAM FILLER5R BALSA DDER1/03/A PINE I/A BALSAFIRRING LEFT WING B LEADOETS REMOVESTRIP SPRACE-zz---~-3/A ALSA MARE PEWS EXTRA LEEB TREN TREE AFTER FUSE El/SO PLYTOP ORLYsB BEEN FF1150 TA EEBTER WE BEETS BNUTS3/32 ERASE TUBE TAP 2-SB TEBEAB POWLARE I25 BELSABAR B SOLEER RE EBEEST FLRARUE SOREW B AFT FURWEB BI VBELVSFROEV S/BEllS SF5588 OPTIONAL DETACHABLE TAIL foam wings frequently destroyed wood structure generally survived New foam cores installed later model service again very low cost important models flew better competition Since have built foam wings almost exclusively 1977 Dragons won Dekalb Aero-Challenge MACA #1 Slow also took 5th Nats 1979 1980 Dragons featured detach able tail sections ease transportation repair feature has entirely successful have seldom really needed dis assemble models 1981 fleet will feature permanent tails plans instruc tions cover both options two extremes Combat design eggshell3 battering ram Dragon neither An eggshell airplane extremely light big fragile airplane can Out turn competition will tolerate contact kind battering ram will fly through anything another its kind can sometimes vertical eight Dragon best effort striking compromise between two Materials lumberyard get slab PIVOT PONT A EXACTLY UBOVE URFATE UF TIP cUTTER ____7 3/A STRAPPENG TAPE/ CONTINUOUS WRAP OVER SPARS B AROUND WIND TIPS OVERLAP 0 ON BOTTOM FOAM TIP AL/OAR TIP CUTTING FIXTURE FOP VIEWAER AENT 3/3200 T1 IITB P1LEER ARMSOEEEEEE PEPPER LS AR BRASS- P/IS AD BRASS5 5P FLISETA0VUTBOPES0 3/32/WA111 22 AELES VIEWBEt UIE BR A55 5PM STREP 3/32. I/BS 9/IS PA TUBE BROWS B PEASR NPPER FUEL TANK Heres authors fleet pack herd Dragons set upforthe Canadian Combat ruleawith amrtnrcnr cot wkoola IndavaorvIoao So annA far manS na alone Ion Sn nroain insulating foam 2 x 8 ft 2 wide Density normally 1 lb per cubic foot Genuine Dow Styrofoam light blue stuff about twice density makes planes last fly like furniture Pick up 8-ft length urring strip dont have some scrap wood around house will also need 6 x 1 ft piece plywood particle board foamcutting fixtures either fuselage type youll need 4 hardwood motor mounts plywood 5/32 dowels x 3 balsa 36-in spruce / x qd erfect leadout wires Fox 2-in bellcrank control horn 1/16-in 3/32-in -in brass tubing Dubro 30-in threaded pushrod clevis 4-40 x l-in bolts blind nuts detachable tail also requires 1 x balsa /16 x ce 6-32 x 2-in bolts blind nuts solder-type clevis Titebond used joints use Hot Stuff wood-to-wood Hobbypoxy Formula 2 fuel-proofing motor mount high-stress areas Use low-temperature covering such Solarfilm GBC laminating film foam wings High-temp material such MonoKote Fascal good fuselage tail canopy models require no paint Nylonreinforced strapping tape such 3M used prevent flexing wing Foam-cutting equipment important piece equipment power source have used battery charger past now have American Flyer train transformer cutting bow fully explained plan wing tip cutter As shown photograph drop-wire fixture vertical plank series eyelet guides exactly 1 surface An eighth-inch piano wire held large paper clip being heated An alumi num heat shield protects plank torch Vertical alignment essential evening spent equipment will pay handsome divi dends time saved future models Cut airfoil core templates plywood Use 5/64-in nails align templates foam Mark foam carpenters square felt-tip pen model requires four foam blanks follows 18 x 10 60 Model Aviation Wingtip ieadoutswhich arecutand terminated aftereievatortravel adjusted Doing operation last results lengths Foam-and-balsa turtledeck glued clamped place after wing covered Spruce strip protects balsa clamps chicken hopper tank under construction Large tube hopper small fuel feed Completed tank R has vent plugged leak test Controls Dragon bushed Fox belicrank pushrod guide re inforced elevator one-piece Du-Bro threaded pushrod Fox metal horn Installation pushrod guide must taken seriously Sloppy work point can ruin planes chances competition Heating tip wire drop-wire fixture preparation boring lateral hole wing blank See text CUTTING WIRE FOAM BLOCK WIREHOLESHANDLE SUPPORT BLOCK END STOP 3---BASE RIB TEMPLATE ASSORTED WEIGHTS WALL OR/ COLUMNWOOD PLANK 2xIOx APA NiFIW ci IADELCOFOAM ASSEMBLY r I II II II / URES ITABLE FOAM WING ASSEMBLY METHOD rAPPLY PRESSURE HERE TO SQUEEZE WING HALVES TOGETHER /1 WING TIP CUTTING FIXTURE MACA Nets Smiths campaigned Dragons detachable tails No problems encountered wIth system two years flyIng 17 x 10 two 5 x 10 can get four models 8-ft slab plan building foamies make big mitre box cut blanks have someone hold straightedge vertically against side cut blanks Take blanks drop-wire fixture well-ventilated area Clamp fixture true vertical position using level core tem plate align blank under wire Keep fire Continued page 125 February 1982 61 can take eyes off lovely Moire Smith look drop-wire fixture rack completed Dragons background 1981 model Dragon like 1981 VW best changes internal Pinstriping tape along leading edge helps protect against dings cuts caused eating other peoples streamers secret Paul Smiths mass-produced Dragonsquality control inspections Ink lines indicate gluing area stab left bare Moire Smith checks five-in nose alignment gauge FOAM ASSEMBLY FIXTURE plus $3 postage Simplex 143 Richmond Street El Segundo CA 90245 Crocket/FAI winder converted purchaser English hand drill die cast nylon case completely encloses metal gears Thrust load carried special ball thrust race crank supplied rather short can easily replaced longer made bar stock winding knob appears too small might want replace drill chuck furnished discarded replaced wire hook Parts instructions conver sion included Price $2400 plus $285 freight Crocket P0 Box 12600 Fresno CA 93778 $2950 plus $295 freight FAI Model Supply P0 Box 3957 Torrance CA 90510 Bob Meuser 4200 Gregory St Oakland CA 94619 Dragon/Smith Continued page 61 extinguisher water bucket handy Heat point wire red hot Set torch down release paper clip wire should pierce straight hole through blank can make hole larger smaller varying temper ature wire Excessive heat can cause oversize hole too little heat can result wire wandering off center may well pierce four sets youre pierce 5-in tip blanks Next comes hot-wire cutting Clear off large enough area cores lay flat bench blank templates held square bench templates square leading edge nail templates foam Always keep same side up avoid creating warp templates arent quite symmetrical Adjust transformer give good clean cut dragging wire making too wide cut Practice some scrap After cutting spar notches disconnect wire thread through pierced hole Cut void disconnect wire again pull Out wire scrap Use same nail holes align airfoil templates Airfoils cut four separate passes starting always spar notch now have fixture front spar slot earlier models front spar slot cut manually-held straightedges Tips cut airfoil template tip-cutting fixture Cut top first bottom removing top scrap sure position both template center line pivot point exactly 1 above base Glue outboard wing tips outboard wings time Position insert wing tip templates inboard tip cut out insert Glue leadout mount tip glue tip inboard wing Sand cut Y8 off top scrap save install later Use Titebond glue joints should also make two 24-in assembly fixtures time Use airfoil templates cut two cradles foam make clear ance notches engine mount tail required one-picce fuselage cut furring strip length glue pine spruce spacers bring front end up dimension 125 dry file spar notches two-piece fuselage file bellcrank-mount notches inapiece in balsa glue x -in spruce both top bottom dry cut center rib tail boom Sand center rib match airfoil sand tail boom fit rib Using center rib alignment glue 3/16 capstrips tail boom dry sand off excess glue drill Introducing New H S Hornet 42 CID 6 1/3 HP Only 6 1/4 lbs New AMA 1 982-83 Rules 44 Limit -- Make 42 CID Legal 5 1/2 center top cylinder head 3 1/2 center side carb Perfect 1/4 scale P-51 1/3 Pitts Very smooth running Like Quadra Optional twin-stack nrclfln Smoke cnsjoitntnlahlo Sit oh 5 en o sea lab Saabln-ing pioton Icr higher cotnpnssion s tile Optional choho Enan hand stoning Spocial clone- coopind heh-tnnoitn oentnm lot moo AF adjatior Solid- know teen macnt op tional radial soppottsatas[ Rotter Ibroot- hearing noolosionly tnan model ainonft Youll Love Partner An updated version popular engine Note improve ments made especially mini ature aircraft use roller thrust bearing double-ring piston soark olug location low 13 1/21 S more power output LIMITED TIME OFFER LIST $14995 SALE $9995 seal knits qinnar Fnwsr-bnlnncnd IihO-wnightwink starlnr toed geanes finebentReact-date prop bob MORE HORNER SPECIAL PART RETAIL SALE 772$24955$75900 77927200$77555 7777250059995 7087250059995 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 79 ROPER ENGINE NEW Sale Last) 79 ENGINE NUB 8 MOUNT PACK 79 USEO DEMO ENGINE BALENCED 6BOLT HUB Repay Patnar N Ouad4 PROP ORILL JIG 709 779 770 7077495 702$7795 So compact measures much larger Quadra Partner engine Comes complete built choke 6 bolt prop hub Radial mount available twin stack INTRO $19995 SALE 1255 7200 2455 7555 500 7595 755 2 75 Write yr CALL Seed 20c Stamp CatalogWill Ship Orders Same Day cODUPSAdd 54 shipping per engine HOR N ER SALES INC Rt 2 Box 9 300 Dixie Hwy. 312 946-2515 Beecher IL 60401 PEANUT-PEOPLE PRESENT PEANUT SCALE MODELS MuSTANG MILES M-18ZERO DRuINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY M-lO Rubber Powered Balsa Tissue Kite $595 SPORT MODELS PRAIRIE BIRD 4 KIT $595 BABY ACE$649 ONE NITE 20$095 ONE NITE tO$595 STRINGLESS WONDER$495 PECK ROG$195 RUBBER OR 00-2 POWERED BUILDING NEEDS V PROPS TISSUE RUBBER WINDERS BLADE SHARPENERS BEARINGS PROP SHAFTS LUBE WASHERS WHEELS FUSE CO2 MOTORS BOOKS PLANS MORE ADVENTURE MODELS IPONY BLIMP ttFTRICAIRSHIP -KIT $24900 COMPLETE CATALOG $100 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS PeckPeIymers SILK 5/YL $445/rD RedYelIow Royul Blue Fine Quality Model Building Any Length Max 5OYd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SIIIPPINGt ADO 50 FOREIGN 150/ORDER NY RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROADn NEW CITY NY 914- 634-850010956 P 0 BOX 2498-MA LA MESA CALIF 92041 PHONE 714 469-8075 714 442-4630 February 1 982 1 25 List $28995 Enginenub Shown wan option al mount & choke SALE $17995 RAOIAL MOUNTRapar 378 79 703 RAOIAL MOUNT Partner 723 TWIN STACK EXHAUST 37 8 Kiarita 705 TWIN STACK EXHAUST Partner Oaadra 720 CHOKE ASSEMBLY Parmer 5 Ooaadraj 727 9500 3955 BRITE SPINNER Repec Part N Quad 722 6500NEOPRENE GAS LINE Per Feet707 2500 RESISTOR SPARK PLUG RCJ-6 773 BIG PROPS VAILABLEI Finished Balanced Weed Aviation Jewelry Custom Made Reproduce Plating Gold Rhodium Bright Nickel White Metal Molding Largest Aircraft Jewelry Selection World Also flight School wings mylar decals jacket patches novelties Plus Fine Hard-Fired Enamel er Special priCRO Re volume orders Call write today Simi-Air214 596-3505 19107 Creeks Dr. Dallas TX 75252 r CakQie R/C 0 VAN NUYS CA 91408 SPORT CARS PO BOX R/C GOODIES 3 II PORSCHEPORSCHE 917K BMW-MI IU U Iw 111/21nIg15-3/4inCHARGER15-3/4inI $6495Reg $7995$995Reg $8295 InI $4295SPEC$5295.-CH TXSPEC$5495 flu CHARLIES NEW 1/12SCALE R/C CARS COMEASSEMBLEDREADY TO RUN COMPLETE WITH 2-CM TRANSMITTER AND WITH RECEIVER AND SERVOS IN LED 27 MHZ ONLY BATTERIES NOT INCLUDED DECALS ARE FURNISHED CARS FEATURE FULLY PROPORTIONAL STEERING WITH AUTOMATIC NEUTRAL PLUS VARIABLE SPEED CONTROL BOTH FORWARD AND REVERSE PORSCHE 935 AND BMW-Mi ALSO HAVE OPERATING R/L TURN SIGNALS PLUS STOP LIGHTS LOW POWER TRANSMITTER BELOW 100 MW REQUIRES NO LICENSE FUN FOR THE WHOLE FAMILYI CATALOG 6W L L70Fore - SHIPPING -$400 USA CAUF RESIDENTS ADD SALES TAX NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed Aotomatieelly align fuselage structures ate built strings measuring eyeballing Simply slide four centeting brackets track until align firewall tail uint two bulkheads Clamp fuselage together lightly mith rubberbands structure mill thee straight track ucaurnmoduIesmrudusuetufoufS Price 2995 ILI Miter Master Miter Master tool designed enable crafts man make perfect joists mood accurately sanding pre-setangles ThesguaringfencnA allowoforprecisegO angles atd retracts below surface Any angle cay beset triangular guide using adjacent side complement angle mill turmed making invaluable truss construction new cyanoacrylate adhesives require accurately fitted loints achieve full strength Miter Master mill enableyso make easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 Pnce $750 Ausembled bound 503 357-2732 Navy Best Ducted Fans SKYRA Y F4D- Plan FormDesigned Bill Effinger Its f Radio Control SKYNAY NAVY F4D1 Scale Ducted Fan RIO RK-20 Fan Unit ong Plan Set RODF-1 $1995 Prices Complete Plana Sub Assembly Detailed Parts Liats Add $200 Mailing Tube Send Brochure Details new designs & great things come Send $100 refundable information two assembly bolts 6-32 x 2-in Glue upper lower bellcrank mounts peg -in dowel Remember peg goes through center rib tail boom Round off aft end tail boom cut stab slot Motor mount Glue clamp hardwood beams center rib fuselage drying add two vertical spacers dry glue clamp 1/32 outboard ard plywood doublers outboard doubler must high-strength plywood such Sigs inboard doubler can lighter 3-ply type such supplied Balsa USA Sand motor mounts doublers shape drill motor bolt holes 9/64-in tank wire hole 1/16-in dowel holes 5/32-in Install sand dowels smooth Using Dremel tool end mill cutter fit engine mount engine Mix up small batch Hobbypoxy Formula 2 warming heat gun stirring stick until thins out consistency clear dope Spread warm glue over motor mount being sure get bolt holes Apply heat finger-paint smooth final application heat will remove finger prints Hang assembly nose-down dry Control system system designed re use mind Fox 2-in bellcrank provides adequate stability better strength less weight popular 3-in model Cut two -in sections 3/32-in tubing leadout guides slip onto full-length pack Perfect BC leadout cable Cut two 1-in sections 1/16in brass tubing bushings slip onto ends bend horseshoe shape insert bellcrank bind copper wire solder leadouts cut terminated after final assembly airplane one-piece model uses Du-Bro 30-in threaded pushrod Z-bend bellcrank end two-piece version uses same rod cut behind trailing edge short length 3/3 2-in brass tube tapped 2-56 thread bound soldered front end terminated control horn soldered clevis Fox metal control horn used heavy-duty pushrod guide fabricated Vs-in tubing bound soldered piano wire screwed epoxied fuselage failure guide could cause loss control need Tail canopy canopy rudder made Ye balsa covered before installa tion stabilizer /a balsa n spruce spar trailing edge elevator also a 1/32 plywood patch top mount control horn prevent splitting along grain Mark gluing area felt-tip pen cover hinge stab elevator before assembly use either Fascal Mono Kote both covering hinges iron-on hinge method described April 1979 Model Aviation has used complete success models since article published Assembly Glue front vertical spar outboard wing taping masking tape Sand runs motor mount redrill -in mounting bolt holes recheck engine fit Glue outboard wing fuselage center rib youre building two-piece model Use two chains rubberbands hold assembly together drying Some scrap cardboard under bands needed protect foam wing tip drying can install stab 126 Model Aviation LGLOW lireb cdl PLUGS 0 Blow Proof Seal OSix Types 3 Heat Ranges S Longer Life S Flash Starting Only $120 SWANSON Aiwe PO Box 1517948 Wayne NJ 07470 eAmerican made Schnuerle ports eDouble ball bearing sPerry carburetor eForged & domed piston 0 Forged &rod 0-ring sealed back cover lnvestment cast crankcase Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA cA 91107 213 359-0016 795-9821 assembly set up controls rubberbands can removed fit inboard wing onto model may require several tries get proper clearances cut controls motor mount assembly fixture simply two 24-in foam slabs airfoil shapes cut wood plank some waxed paper whatever assorted weights handy Glue inboard wing spars airplane Titebond place model between waxed-paper-covered foam cradles stack plank weights top wing tip should against wall can press against other get good tight joint next day remove model fixture install leadouts pinned balsa inserts wire wickets glued epoxy Hot Stuff baking soda scrap foam now re-inserted one-piece model also needs foam fillers between wings Ask GMP dealer details3U CRAFTSMAN HO TEL 213-992-0195 GMP GORHAA4 MODEL PRODUCTS CALABABAB CA 91305 TVVX 9104945833 February 1982 127 RJL [the ULTIRTE fluing machine K61 Suggested Retail $14800 Muffler Included New Expandable concept R/C Helicopters Competitor will fly 45 50 60 size engines model can take novice flying winning AMA expert class Advanced design features never before seen RIG Helicopter Triple ball bearings main tail rotor hubs5Light weight metal construction Autorotation standard5Low cost parts aControls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Dual ball bearing tail pitch controlSpiral hypoid gears main tail drives WHAM SHOW 82 Dont miss greatest Radio Control Show East Westchester County Center White Plains NY fts 14th annual show its sure biggest best ever Keep fleet last week end Febma19 open 1992 WRAMs Shew going te largest yet Well seer 150 manufacturers ether enhibi tors hare already signed up bring eserything thatneemin hobby . hits engines radios accessories neery thing betweer farrtous Swap Shep will lull operatise thousands ot items including built-up planes almest sew radios engines on en sowething just about eseryone Static Cumpetltlue Make sum latest creation tinished ep ard polished poell hare chance take home et dozens troyhies offered eseef 5 rOSTuuIuso r roC sours rusT s,u r5050 500 50005 0050 ursoso Curs stubS Foss rrLoo 5050 Judging taken ylaoe Suraae utternoon Entries acceyted until 12 soon Sunday Synural udmisuien area will prosided en 501 h days tsr static display sontentanto city Suilt-sp models [ BROWN A-23 CO-2 TINY PEANUT CO-2 ENGINE ENGINE $359S CHARCEN 5995 3/4 COMPLETE CATALOG $100 PHONE 714 469-9975 er 442 4838 Peck-Pelyiners BOX 2498-MA LA MESA CALIF 92041 over fuselage two-piece model needs balsa fillers behind spSrs dry give whole wing light sanding blend parts together remove glue runs Clean wing soft brush vacuum cleaner Apply nylon strap ping tape shown plans essential prevent flexing breaking glue joints may also want add strip tape near leading edge prevent streamers cutting too far foam Add AMA numbers other decorations before covering Covering Very low-heat material needed melting foam Cut four pieces 25 x 12 allow overlapping tips center leading trailing edges Lay piece cover ing over one-quarter wing iron line down spar Work iron away line toward leading trailing edges will keep air bubbles being trapped under covering Cut slits covering laps around tip edges also helps prevent wrinkling remaining three sides same way fuselage one-piece models needs built up foam turtledeck capped balsa strip front strip needs tacked place Hot Stuff remainder clamped place under spruce strip glued hegisfoution 01 models sill start &30 am mooring SWAP SHOP WROMs Soap Shop has some see 51 major show altruc tiers thOusands 01 irdluidual items charging harde help olimirute registration Orssh 1502 group Shop ciii proviSo tsr pro regintratier terms seoniur forms nerd neltuodressed stamp ed enselepe JeOr shinIer 4 sever Rd Luoshmunt NY 10530 SPECIAL NOTE pearthere ciii Seer restriotises rumser St bsiltup coduls registrant nay place Scap Shop ruorrrrrtarrratisr crOOr 00 CurS 5005cr 55 Cneoeicr no cross ruirr 5Y tdWa 19041 mO-5usr cEnecopenEe fuels eEfSMOSSLEe5 50 lebruary 20/21 lOAM to6PM SCL I ScALE DRAWINGSIA PHOTOS BOOKLETS iG jREPLA-T2CH asSINTERNATIONAL 1931 CATALOGS $200 49500 IVtC KENZIE HIFVY ____________ VIDA OREGON 97489 Titebond Fuel-proof joint between covering motor mount warmed Hobbypoxy Cover fuselage plastic film Install pushrod guide rudder canopy fuel tank wires Fuel tank construction Materials 010-in brass shim stock 3/32 -in OD brass tubing Sears 60/40 solder Kester soldering paste flux Weller electric solder ing gun rather torch used wood form shape tank helpful essential Cut out three parts main tank solder front seam add top bottom Sharp edges should filed smooth taking care clean up lead dust Insert two filler tubes pressure-test under water tank airtight drill four holes outboard side two front Install fuel feed air vent tubes Make chicken-hopper out short piece 9/16-in tubing shim stock lid File bottom hopper tight fit tank solder place Note hopper Vs above centerline compensate richening out inverted Pressure-test tank under water again Clean tank hot water baking soda install Dragon foam rubber pad 128 Model Aviation N underneath rubber tubing over tank wires protection fuel filter may need frequent cleaning first new tank Engines Fox Combat Special Mark III has standard engine Dragon Future models will feature Mark IV have yet opportunity test Supertigre G2 have used some loss speed 05 36 has used some success local contests OS equals Fox speed adds too much weight good maneuverability opinion Fox consistently pulls Dragon 92 94 mph 15% nitro exceptional engine able break 100 several times 30% get under 90 something wearing out modifications replace rear bearing Hoover-NSK R8 78 use Supertigre needle valve assembly venturi insert wrapped polyethelene plastic form air seal head clearance set 015 018 essential good performance Break-in via bench running 9-6 prop cut 8 Lapping required certain very tight replacement pistons sleeves like Fox becasue runs right Out box doesnt take time away important things like fuel tanks Flying completed airplane should weigh 265 ounces balance 25% chord slightly outboard thrust line sidemounted engine leadout position offset wing provide line tension necessary recommend tip weight engine out-thrust rudder offset Make initial test flight engine set rich side until become familiar needling engine chicken hopper tank Foamies can become warped covering assembly check out use iron trim tabs correct warp plane feels too sluggish go aft CG control Ive never come Out tail-heavy yet Top Flite 9-5s 9-6s cut 8-6 work well have four Dragons tested trimmed out should ready contest CL Aerobatics Paul Continued page 62 Bill Lindemann Metuchen NJ wrote question come results WinstonSalem CL Championships showed Novice Beginner scores 454 442 431 Well thats good question does show voluntary placing usually allow contestants seed themselves category choice doesnt always work out numbers However lets also remember what 454 region may another because ofjudging differences abilities competitors etc scores shown Advanced Expert categories results contest sent writer however can surmise Experts probably scored 520 over Advanced falling somewhere between 450 500 What says PAMPA categories dont always work right down line since contest management still refuses have four cate gories Winston-Salem meet will necessarily some place scores will off usual scale place Richard Byrons records pilots scores would come handy contest management reference guide Perhaps could have copies pilots rankings sent major NOT JUST ANOTHER CATALOG novice tips experts expert thousands products specifica tions photos help decide make hobby enjoyable everybody interested RI Its standard reference book Will Ever Need Available through local hobby shop use coupon Yes send copy new RADIO CONTROL BUYERS GUIDE D Enclosed $950 $795 plus $1 55 postage us & canada dians Send us funds VA residents add 4% sales tax D charge D Mastercharge D visa charge No________________________ Exp Date _________________ Name Street city State Zip Return Boynton & Associates Inc clifton House clifton virginia 22024 mE i ion special MK III 84 Mono 78 5pn Weight 18 lbs2195 Travel Ai 2000 105 Classc Scale 5plann 23 lbs2295 Travel Ai 4000 99 9adal ing Classic Spe 23 lbs2295 Fokker 0-VII 88 Gernan WW Fglsn Spe 23 lbs2495 Ceeing Scan Sopsnth Pcp 80 Spn Sopacth Tnpnbocnd 80 Tnplane Waco ATO Lyjack Vesoc 90 8placn Nncpo-t 11 Sebe 85 Splanc 3 5 Scale Fockec 081 72 Tcplace Plans shipped U PS Parcel Post Please add $300 torpostaqe liandlino fastest service send postal inoney order No C 00 orders sent BEHRENS PLAN SERVICE 31-27 Healy Ave Far Rockaway NY 11691 in212 337-6987 February 1 982 1 29 Quick Silver $1197 er Bearing Inol Post ste lingSyringe Dispenser Field Repairs No Waste 22000 psi tensile strength Low melting point open flame lighter soldering iron Will Join 14 different combinations metals Wont Blacken Tarnish Seining South THS Hobby Distributors PO Box 914 Rosewell GA 30077
Edition: Model Aviation - 1982/02
Page Numbers: 58, 59, 60, 61, 125, 126, 127, 128, 129
SLOW COMBAT popular control line event parts country Despite its strong following has almost com plete absence kits published plans probably result continuous series rules changes have eliminated coin petitive designs two years 1977 inboard tanks very short noses prevailed 7 8-79 rules stretched noses 5 deregulating tank location delet ing landing gears 1980-81 book outlawed forms inboard tanks Fortunately no changes 1982-83 will disallow equipment Considering rules instability its easy see no has time produce kit magazine article positive effect has interesting variety equipment contest Fuel tanks main factor sets Slow Combat apart other events require ment suction fuel system Fast FAI Combat contestant simply opens up venturi wide possible hooks up pressure tank fuel tank venturi size key factors make contestant competitive another Slow Combat jobs faster tighter-turning other models run suction Sport Stunt setups work event Prior 1978 went through series con ventional uniflow clunk tanks really satisfactory equal compe tition June 1978 issue Model Aviation contained article Don Jehlik chicken hopper tanks completely changed life least respect Slow Combat built chicken hopper soldered onto Perfect square tank first test flight perfectly smooth steady run start finish havent used other form suction tank since principle engine draws fuel tiny hopper thus unaffected sloshing G-forces decreasing volume main tank Longer faster smoother runs result no rich-at-the-start/lean-atthe-end runs no saging enter tight maneuver chicken-hopper tank vital success Dragon too fast tight-turning work conventional tank Airframe design Combat contests won RUBRER TUBING STRAPPING TERE FRONT SPON ITTI TANK FRONT VII SOLID HOLLOW RORFECT UROMMET I/GNALSA INSERT PERFECT H DO L LOW SLUG 5 BALSA INSERT FOAM CUT 0 332 BRASS TONINGSECTrON A-AOWED ROCK WIRE WICKETS EPOGIED IN PLACE INSERT TEMPLATE 2 BEER RIB 0 REOD -VA PLY I2 I2 I-V4 B A-AG BLIND NOTS V2 F TIP TEMPLATE IB PLF NOTCH CSRE TEMPLATES OSE FIROT P OR PLY 714ROOT TEMPLATE ALAWYS KEEP TIE ISAME SIRE OP I4 VA beating series four six opponents Quality airplanes needed win match quantity models needed win contest 1976 World Championships saw British solution challenge foam Super star models featured balsa hardwood center sections foam wings crashes 4 like thought really tearing up competition heres fine weapon Slow Combat Dragon has proven itself well battle Since usually need whole fleet models perhaps better word platoon competitions author describes series imaginative mass-production techniques Smith 58 Model Aviation ar JOhnsOfltOOK ipic55 101I.levulano uauuflguxc Finals 1980 Nationals uragon nas Impressive contest record FULL-SIZE PLANSAVAILABLE SEE PAGE 140 IR PLY ENIDRE MEER2TS VIE P53/JO 53/RE 1222 MEUSTS I/BEI-VBs 10-02 PLYWOLO IIH HOLW# 6 SPRUCE SPAR CAREES2 BELLCRAMn- - RAPPENG TAPE D5IBRO 30 TPREAOED PUSHROD 1/16 BRASS TUBING RING LEADOUTREUCRANI LEADOUT DETAIL 08 BALSA CANOPY LS SIDE VIEW ONWA SPE AL NO BSAOU PPE GH HANRE OP WING TIP CUTTER 3/As 2/2 P82 OR SPRUCE -NICI-WSRE WIRE Iii ill________ ROLLOW /A STRASPENG TAPE JI HALLOW Li LOWER CONTROL MOUNT 2I I/B PLY UPPER COESTROL MCERJT -3/An I/O I/B TOP VIEW UTRAPPNS TAPE TOP BOTTOM HALLOW ROLlS IS TA6 DRAOoN DESIGN ED 8 DRAWN BY PAUL SMITHTO TR22ASFURMER TRACING BY JOE DEMARCOTPANS WIPECCL URUNG BRUCEI/A I-I/O PLY I/As 02 BALSA CAPUTRIP 10 FOAM TURCOE CECICI/B BALSA 01 INSTALL AFTER WINS ISV COVERED I/RV2s2-3R PLYII/SS 3/A WOOD {NICRROME FOS COUTROL HORNSAEK ASEONNECT OURRO CLEVOI/S SCSLE VAEI/O33/AFOAM CUTTEIiI BALSA FELERFULL UCRLE ~FOAM FILLER5R BALSA DDER1/03/A PINE I/A BALSAFIRRING LEFT WING B LEADOETS REMOVESTRIP SPRACE-zz---~-3/A ALSA MARE PEWS EXTRA LEEB TREN TREE AFTER FUSE El/SO PLYTOP ORLYsB BEEN FF1150 TA EEBTER WE BEETS BNUTS3/32 ERASE TUBE TAP 2-SB TEBEAB POWLARE I25 BELSABAR B SOLEER RE EBEEST FLRARUE SOREW B AFT FURWEB BI VBELVSFROEV S/BEllS SF5588 OPTIONAL DETACHABLE TAIL foam wings frequently destroyed wood structure generally survived New foam cores installed later model service again very low cost important models flew better competition Since have built foam wings almost exclusively 1977 Dragons won Dekalb Aero-Challenge MACA #1 Slow also took 5th Nats 1979 1980 Dragons featured detach able tail sections ease transportation repair feature has entirely successful have seldom really needed dis assemble models 1981 fleet will feature permanent tails plans instruc tions cover both options two extremes Combat design eggshell3 battering ram Dragon neither An eggshell airplane extremely light big fragile airplane can Out turn competition will tolerate contact kind battering ram will fly through anything another its kind can sometimes vertical eight Dragon best effort striking compromise between two Materials lumberyard get slab PIVOT PONT A EXACTLY UBOVE URFATE UF TIP cUTTER ____7 3/A STRAPPENG TAPE/ CONTINUOUS WRAP OVER SPARS B AROUND WIND TIPS OVERLAP 0 ON BOTTOM FOAM TIP AL/OAR TIP CUTTING FIXTURE FOP VIEWAER AENT 3/3200 T1 IITB P1LEER ARMSOEEEEEE PEPPER LS AR BRASS- P/IS AD BRASS5 5P FLISETA0VUTBOPES0 3/32/WA111 22 AELES VIEWBEt UIE BR A55 5PM STREP 3/32. I/BS 9/IS PA TUBE BROWS B PEASR NPPER FUEL TANK Heres authors fleet pack herd Dragons set upforthe Canadian Combat ruleawith amrtnrcnr cot wkoola IndavaorvIoao So annA far manS na alone Ion Sn nroain insulating foam 2 x 8 ft 2 wide Density normally 1 lb per cubic foot Genuine Dow Styrofoam light blue stuff about twice density makes planes last fly like furniture Pick up 8-ft length urring strip dont have some scrap wood around house will also need 6 x 1 ft piece plywood particle board foamcutting fixtures either fuselage type youll need 4 hardwood motor mounts plywood 5/32 dowels x 3 balsa 36-in spruce / x qd erfect leadout wires Fox 2-in bellcrank control horn 1/16-in 3/32-in -in brass tubing Dubro 30-in threaded pushrod clevis 4-40 x l-in bolts blind nuts detachable tail also requires 1 x balsa /16 x ce 6-32 x 2-in bolts blind nuts solder-type clevis Titebond used joints use Hot Stuff wood-to-wood Hobbypoxy Formula 2 fuel-proofing motor mount high-stress areas Use low-temperature covering such Solarfilm GBC laminating film foam wings High-temp material such MonoKote Fascal good fuselage tail canopy models require no paint Nylonreinforced strapping tape such 3M used prevent flexing wing Foam-cutting equipment important piece equipment power source have used battery charger past now have American Flyer train transformer cutting bow fully explained plan wing tip cutter As shown photograph drop-wire fixture vertical plank series eyelet guides exactly 1 surface An eighth-inch piano wire held large paper clip being heated An alumi num heat shield protects plank torch Vertical alignment essential evening spent equipment will pay handsome divi dends time saved future models Cut airfoil core templates plywood Use 5/64-in nails align templates foam Mark foam carpenters square felt-tip pen model requires four foam blanks follows 18 x 10 60 Model Aviation Wingtip ieadoutswhich arecutand terminated aftereievatortravel adjusted Doing operation last results lengths Foam-and-balsa turtledeck glued clamped place after wing covered Spruce strip protects balsa clamps chicken hopper tank under construction Large tube hopper small fuel feed Completed tank R has vent plugged leak test Controls Dragon bushed Fox belicrank pushrod guide re inforced elevator one-piece Du-Bro threaded pushrod Fox metal horn Installation pushrod guide must taken seriously Sloppy work point can ruin planes chances competition Heating tip wire drop-wire fixture preparation boring lateral hole wing blank See text CUTTING WIRE FOAM BLOCK WIREHOLESHANDLE SUPPORT BLOCK END STOP 3---BASE RIB TEMPLATE ASSORTED WEIGHTS WALL OR/ COLUMNWOOD PLANK 2xIOx APA NiFIW ci IADELCOFOAM ASSEMBLY r I II II II / URES ITABLE FOAM WING ASSEMBLY METHOD rAPPLY PRESSURE HERE TO SQUEEZE WING HALVES TOGETHER /1 WING TIP CUTTING FIXTURE MACA Nets Smiths campaigned Dragons detachable tails No problems encountered wIth system two years flyIng 17 x 10 two 5 x 10 can get four models 8-ft slab plan building foamies make big mitre box cut blanks have someone hold straightedge vertically against side cut blanks Take blanks drop-wire fixture well-ventilated area Clamp fixture true vertical position using level core tem plate align blank under wire Keep fire Continued page 125 February 1982 61 can take eyes off lovely Moire Smith look drop-wire fixture rack completed Dragons background 1981 model Dragon like 1981 VW best changes internal Pinstriping tape along leading edge helps protect against dings cuts caused eating other peoples streamers secret Paul Smiths mass-produced Dragonsquality control inspections Ink lines indicate gluing area stab left bare Moire Smith checks five-in nose alignment gauge FOAM ASSEMBLY FIXTURE plus $3 postage Simplex 143 Richmond Street El Segundo CA 90245 Crocket/FAI winder converted purchaser English hand drill die cast nylon case completely encloses metal gears Thrust load carried special ball thrust race crank supplied rather short can easily replaced longer made bar stock winding knob appears too small might want replace drill chuck furnished discarded replaced wire hook Parts instructions conver sion included Price $2400 plus $285 freight Crocket P0 Box 12600 Fresno CA 93778 $2950 plus $295 freight FAI Model Supply P0 Box 3957 Torrance CA 90510 Bob Meuser 4200 Gregory St Oakland CA 94619 Dragon/Smith Continued page 61 extinguisher water bucket handy Heat point wire red hot Set torch down release paper clip wire should pierce straight hole through blank can make hole larger smaller varying temper ature wire Excessive heat can cause oversize hole too little heat can result wire wandering off center may well pierce four sets youre pierce 5-in tip blanks Next comes hot-wire cutting Clear off large enough area cores lay flat bench blank templates held square bench templates square leading edge nail templates foam Always keep same side up avoid creating warp templates arent quite symmetrical Adjust transformer give good clean cut dragging wire making too wide cut Practice some scrap After cutting spar notches disconnect wire thread through pierced hole Cut void disconnect wire again pull Out wire scrap Use same nail holes align airfoil templates Airfoils cut four separate passes starting always spar notch now have fixture front spar slot earlier models front spar slot cut manually-held straightedges Tips cut airfoil template tip-cutting fixture Cut top first bottom removing top scrap sure position both template center line pivot point exactly 1 above base Glue outboard wing tips outboard wings time Position insert wing tip templates inboard tip cut out insert Glue leadout mount tip glue tip inboard wing Sand cut Y8 off top scrap save install later Use Titebond glue joints should also make two 24-in assembly fixtures time Use airfoil templates cut two cradles foam make clear ance notches engine mount tail required one-picce fuselage cut furring strip length glue pine spruce spacers bring front end up dimension 125 dry file spar notches two-piece fuselage file bellcrank-mount notches inapiece in balsa glue x -in spruce both top bottom dry cut center rib tail boom Sand center rib match airfoil sand tail boom fit rib Using center rib alignment glue 3/16 capstrips tail boom dry sand off excess glue drill Introducing New H S Hornet 42 CID 6 1/3 HP Only 6 1/4 lbs New AMA 1 982-83 Rules 44 Limit -- Make 42 CID Legal 5 1/2 center top cylinder head 3 1/2 center side carb Perfect 1/4 scale P-51 1/3 Pitts Very smooth running Like Quadra Optional twin-stack nrclfln Smoke cnsjoitntnlahlo Sit oh 5 en o sea lab Saabln-ing pioton Icr higher cotnpnssion s tile Optional choho Enan hand stoning Spocial clone- coopind heh-tnnoitn oentnm lot moo AF adjatior Solid- know teen macnt op tional radial soppottsatas[ Rotter Ibroot- hearing noolosionly tnan model ainonft Youll Love Partner An updated version popular engine Note improve ments made especially mini ature aircraft use roller thrust bearing double-ring piston soark olug location low 13 1/21 S more power output LIMITED TIME OFFER LIST $14995 SALE $9995 seal knits qinnar Fnwsr-bnlnncnd IihO-wnightwink starlnr toed geanes finebentReact-date prop bob MORE HORNER SPECIAL PART RETAIL SALE 772$24955$75900 77927200$77555 7777250059995 7087250059995 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 79 ROPER ENGINE NEW Sale Last) 79 ENGINE NUB 8 MOUNT PACK 79 USEO DEMO ENGINE BALENCED 6BOLT HUB Repay Patnar N Ouad4 PROP ORILL JIG 709 779 770 7077495 702$7795 So compact measures much larger Quadra Partner engine Comes complete built choke 6 bolt prop hub Radial mount available twin stack INTRO $19995 SALE 1255 7200 2455 7555 500 7595 755 2 75 Write yr CALL Seed 20c Stamp CatalogWill Ship Orders Same Day cODUPSAdd 54 shipping per engine HOR N ER SALES INC Rt 2 Box 9 300 Dixie Hwy. 312 946-2515 Beecher IL 60401 PEANUT-PEOPLE PRESENT PEANUT SCALE MODELS MuSTANG MILES M-18ZERO DRuINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY M-lO Rubber Powered Balsa Tissue Kite $595 SPORT MODELS PRAIRIE BIRD 4 KIT $595 BABY ACE$649 ONE NITE 20$095 ONE NITE tO$595 STRINGLESS WONDER$495 PECK ROG$195 RUBBER OR 00-2 POWERED BUILDING NEEDS V PROPS TISSUE RUBBER WINDERS BLADE SHARPENERS BEARINGS PROP SHAFTS LUBE WASHERS WHEELS FUSE CO2 MOTORS BOOKS PLANS MORE ADVENTURE MODELS IPONY BLIMP ttFTRICAIRSHIP -KIT $24900 COMPLETE CATALOG $100 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS PeckPeIymers SILK 5/YL $445/rD RedYelIow Royul Blue Fine Quality Model Building Any Length Max 5OYd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SIIIPPINGt ADO 50 FOREIGN 150/ORDER NY RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROADn NEW CITY NY 914- 634-850010956 P 0 BOX 2498-MA LA MESA CALIF 92041 PHONE 714 469-8075 714 442-4630 February 1 982 1 25 List $28995 Enginenub Shown wan option al mount & choke SALE $17995 RAOIAL MOUNTRapar 378 79 703 RAOIAL MOUNT Partner 723 TWIN STACK EXHAUST 37 8 Kiarita 705 TWIN STACK EXHAUST Partner Oaadra 720 CHOKE ASSEMBLY Parmer 5 Ooaadraj 727 9500 3955 BRITE SPINNER Repec Part N Quad 722 6500NEOPRENE GAS LINE Per Feet707 2500 RESISTOR SPARK PLUG RCJ-6 773 BIG PROPS VAILABLEI Finished Balanced Weed Aviation Jewelry Custom Made Reproduce Plating Gold Rhodium Bright Nickel White Metal Molding Largest Aircraft Jewelry Selection World Also flight School wings mylar decals jacket patches novelties Plus Fine Hard-Fired Enamel er Special priCRO Re volume orders Call write today Simi-Air214 596-3505 19107 Creeks Dr. Dallas TX 75252 r CakQie R/C 0 VAN NUYS CA 91408 SPORT CARS PO BOX R/C GOODIES 3 II PORSCHEPORSCHE 917K BMW-MI IU U Iw 111/21nIg15-3/4inCHARGER15-3/4inI $6495Reg $7995$995Reg $8295 InI $4295SPEC$5295.-CH TXSPEC$5495 flu CHARLIES NEW 1/12SCALE R/C CARS COMEASSEMBLEDREADY TO RUN COMPLETE WITH 2-CM TRANSMITTER AND WITH RECEIVER AND SERVOS IN LED 27 MHZ ONLY BATTERIES NOT INCLUDED DECALS ARE FURNISHED CARS FEATURE FULLY PROPORTIONAL STEERING WITH AUTOMATIC NEUTRAL PLUS VARIABLE SPEED CONTROL BOTH FORWARD AND REVERSE PORSCHE 935 AND BMW-Mi ALSO HAVE OPERATING R/L TURN SIGNALS PLUS STOP LIGHTS LOW POWER TRANSMITTER BELOW 100 MW REQUIRES NO LICENSE FUN FOR THE WHOLE FAMILYI CATALOG 6W L L70Fore - SHIPPING -$400 USA CAUF RESIDENTS ADD SALES TAX NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed Aotomatieelly align fuselage structures ate built strings measuring eyeballing Simply slide four centeting brackets track until align firewall tail uint two bulkheads Clamp fuselage together lightly mith rubberbands structure mill thee straight track ucaurnmoduIesmrudusuetufoufS Price 2995 ILI Miter Master Miter Master tool designed enable crafts man make perfect joists mood accurately sanding pre-setangles ThesguaringfencnA allowoforprecisegO angles atd retracts below surface Any angle cay beset triangular guide using adjacent side complement angle mill turmed making invaluable truss construction new cyanoacrylate adhesives require accurately fitted loints achieve full strength Miter Master mill enableyso make easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 Pnce $750 Ausembled bound 503 357-2732 Navy Best Ducted Fans SKYRA Y F4D- Plan FormDesigned Bill Effinger Its f Radio Control SKYNAY NAVY F4D1 Scale Ducted Fan RIO RK-20 Fan Unit ong Plan Set RODF-1 $1995 Prices Complete Plana Sub Assembly Detailed Parts Liats Add $200 Mailing Tube Send Brochure Details new designs & great things come Send $100 refundable information two assembly bolts 6-32 x 2-in Glue upper lower bellcrank mounts peg -in dowel Remember peg goes through center rib tail boom Round off aft end tail boom cut stab slot Motor mount Glue clamp hardwood beams center rib fuselage drying add two vertical spacers dry glue clamp 1/32 outboard ard plywood doublers outboard doubler must high-strength plywood such Sigs inboard doubler can lighter 3-ply type such supplied Balsa USA Sand motor mounts doublers shape drill motor bolt holes 9/64-in tank wire hole 1/16-in dowel holes 5/32-in Install sand dowels smooth Using Dremel tool end mill cutter fit engine mount engine Mix up small batch Hobbypoxy Formula 2 warming heat gun stirring stick until thins out consistency clear dope Spread warm glue over motor mount being sure get bolt holes Apply heat finger-paint smooth final application heat will remove finger prints Hang assembly nose-down dry Control system system designed re use mind Fox 2-in bellcrank provides adequate stability better strength less weight popular 3-in model Cut two -in sections 3/32-in tubing leadout guides slip onto full-length pack Perfect BC leadout cable Cut two 1-in sections 1/16in brass tubing bushings slip onto ends bend horseshoe shape insert bellcrank bind copper wire solder leadouts cut terminated after final assembly airplane one-piece model uses Du-Bro 30-in threaded pushrod Z-bend bellcrank end two-piece version uses same rod cut behind trailing edge short length 3/3 2-in brass tube tapped 2-56 thread bound soldered front end terminated control horn soldered clevis Fox metal control horn used heavy-duty pushrod guide fabricated Vs-in tubing bound soldered piano wire screwed epoxied fuselage failure guide could cause loss control need Tail canopy canopy rudder made Ye balsa covered before installa tion stabilizer /a balsa n spruce spar trailing edge elevator also a 1/32 plywood patch top mount control horn prevent splitting along grain Mark gluing area felt-tip pen cover hinge stab elevator before assembly use either Fascal Mono Kote both covering hinges iron-on hinge method described April 1979 Model Aviation has used complete success models since article published Assembly Glue front vertical spar outboard wing taping masking tape Sand runs motor mount redrill -in mounting bolt holes recheck engine fit Glue outboard wing fuselage center rib youre building two-piece model Use two chains rubberbands hold assembly together drying Some scrap cardboard under bands needed protect foam wing tip drying can install stab 126 Model Aviation LGLOW lireb cdl PLUGS 0 Blow Proof Seal OSix Types 3 Heat Ranges S Longer Life S Flash Starting Only $120 SWANSON Aiwe PO Box 1517948 Wayne NJ 07470 eAmerican made Schnuerle ports eDouble ball bearing sPerry carburetor eForged & domed piston 0 Forged &rod 0-ring sealed back cover lnvestment cast crankcase Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA cA 91107 213 359-0016 795-9821 assembly set up controls rubberbands can removed fit inboard wing onto model may require several tries get proper clearances cut controls motor mount assembly fixture simply two 24-in foam slabs airfoil shapes cut wood plank some waxed paper whatever assorted weights handy Glue inboard wing spars airplane Titebond place model between waxed-paper-covered foam cradles stack plank weights top wing tip should against wall can press against other get good tight joint next day remove model fixture install leadouts pinned balsa inserts wire wickets glued epoxy Hot Stuff baking soda scrap foam now re-inserted one-piece model also needs foam fillers between wings Ask GMP dealer details3U CRAFTSMAN HO TEL 213-992-0195 GMP GORHAA4 MODEL PRODUCTS CALABABAB CA 91305 TVVX 9104945833 February 1982 127 RJL [the ULTIRTE fluing machine K61 Suggested Retail $14800 Muffler Included New Expandable concept R/C Helicopters Competitor will fly 45 50 60 size engines model can take novice flying winning AMA expert class Advanced design features never before seen RIG Helicopter Triple ball bearings main tail rotor hubs5Light weight metal construction Autorotation standard5Low cost parts aControls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Dual ball bearing tail pitch controlSpiral hypoid gears main tail drives WHAM SHOW 82 Dont miss greatest Radio Control Show East Westchester County Center White Plains NY fts 14th annual show its sure biggest best ever Keep fleet last week end Febma19 open 1992 WRAMs Shew going te largest yet Well seer 150 manufacturers ether enhibi tors hare already signed up bring eserything thatneemin hobby . hits engines radios accessories neery thing betweer farrtous Swap Shep will lull operatise thousands ot items including built-up planes almest sew radios engines on en sowething just about eseryone Static Cumpetltlue Make sum latest creation tinished ep ard polished poell hare chance take home et dozens troyhies offered eseef 5 rOSTuuIuso r roC sours rusT s,u r5050 500 50005 0050 ursoso Curs stubS Foss rrLoo 5050 Judging taken ylaoe Suraae utternoon Entries acceyted until 12 soon Sunday Synural udmisuien area will prosided en 501 h days tsr static display sontentanto city Suilt-sp models [ BROWN A-23 CO-2 TINY PEANUT CO-2 ENGINE ENGINE $359S CHARCEN 5995 3/4 COMPLETE CATALOG $100 PHONE 714 469-9975 er 442 4838 Peck-Pelyiners BOX 2498-MA LA MESA CALIF 92041 over fuselage two-piece model needs balsa fillers behind spSrs dry give whole wing light sanding blend parts together remove glue runs Clean wing soft brush vacuum cleaner Apply nylon strap ping tape shown plans essential prevent flexing breaking glue joints may also want add strip tape near leading edge prevent streamers cutting too far foam Add AMA numbers other decorations before covering Covering Very low-heat material needed melting foam Cut four pieces 25 x 12 allow overlapping tips center leading trailing edges Lay piece cover ing over one-quarter wing iron line down spar Work iron away line toward leading trailing edges will keep air bubbles being trapped under covering Cut slits covering laps around tip edges also helps prevent wrinkling remaining three sides same way fuselage one-piece models needs built up foam turtledeck capped balsa strip front strip needs tacked place Hot Stuff remainder clamped place under spruce strip glued hegisfoution 01 models sill start &30 am mooring SWAP SHOP WROMs Soap Shop has some see 51 major show altruc tiers thOusands 01 irdluidual items charging harde help olimirute registration Orssh 1502 group Shop ciii proviSo tsr pro regintratier terms seoniur forms nerd neltuodressed stamp ed enselepe JeOr shinIer 4 sever Rd Luoshmunt NY 10530 SPECIAL NOTE pearthere ciii Seer restriotises rumser St bsiltup coduls registrant nay place Scap Shop ruorrrrrtarrratisr crOOr 00 CurS 5005cr 55 Cneoeicr no cross ruirr 5Y tdWa 19041 mO-5usr cEnecopenEe fuels eEfSMOSSLEe5 50 lebruary 20/21 lOAM to6PM SCL I ScALE DRAWINGSIA PHOTOS BOOKLETS iG jREPLA-T2CH asSINTERNATIONAL 1931 CATALOGS $200 49500 IVtC KENZIE HIFVY ____________ VIDA OREGON 97489 Titebond Fuel-proof joint between covering motor mount warmed Hobbypoxy Cover fuselage plastic film Install pushrod guide rudder canopy fuel tank wires Fuel tank construction Materials 010-in brass shim stock 3/32 -in OD brass tubing Sears 60/40 solder Kester soldering paste flux Weller electric solder ing gun rather torch used wood form shape tank helpful essential Cut out three parts main tank solder front seam add top bottom Sharp edges should filed smooth taking care clean up lead dust Insert two filler tubes pressure-test under water tank airtight drill four holes outboard side two front Install fuel feed air vent tubes Make chicken-hopper out short piece 9/16-in tubing shim stock lid File bottom hopper tight fit tank solder place Note hopper Vs above centerline compensate richening out inverted Pressure-test tank under water again Clean tank hot water baking soda install Dragon foam rubber pad 128 Model Aviation N underneath rubber tubing over tank wires protection fuel filter may need frequent cleaning first new tank Engines Fox Combat Special Mark III has standard engine Dragon Future models will feature Mark IV have yet opportunity test Supertigre G2 have used some loss speed 05 36 has used some success local contests OS equals Fox speed adds too much weight good maneuverability opinion Fox consistently pulls Dragon 92 94 mph 15% nitro exceptional engine able break 100 several times 30% get under 90 something wearing out modifications replace rear bearing Hoover-NSK R8 78 use Supertigre needle valve assembly venturi insert wrapped polyethelene plastic form air seal head clearance set 015 018 essential good performance Break-in via bench running 9-6 prop cut 8 Lapping required certain very tight replacement pistons sleeves like Fox becasue runs right Out box doesnt take time away important things like fuel tanks Flying completed airplane should weigh 265 ounces balance 25% chord slightly outboard thrust line sidemounted engine leadout position offset wing provide line tension necessary recommend tip weight engine out-thrust rudder offset Make initial test flight engine set rich side until become familiar needling engine chicken hopper tank Foamies can become warped covering assembly check out use iron trim tabs correct warp plane feels too sluggish go aft CG control Ive never come Out tail-heavy yet Top Flite 9-5s 9-6s cut 8-6 work well have four Dragons tested trimmed out should ready contest CL Aerobatics Paul Continued page 62 Bill Lindemann Metuchen NJ wrote question come results WinstonSalem CL Championships showed Novice Beginner scores 454 442 431 Well thats good question does show voluntary placing usually allow contestants seed themselves category choice doesnt always work out numbers However lets also remember what 454 region may another because ofjudging differences abilities competitors etc scores shown Advanced Expert categories results contest sent writer however can surmise Experts probably scored 520 over Advanced falling somewhere between 450 500 What says PAMPA categories dont always work right down line since contest management still refuses have four cate gories Winston-Salem meet will necessarily some place scores will off usual scale place Richard Byrons records pilots scores would come handy contest management reference guide Perhaps could have copies pilots rankings sent major NOT JUST ANOTHER CATALOG novice tips experts expert thousands products specifica tions photos help decide make hobby enjoyable everybody interested RI Its standard reference book Will Ever Need Available through local hobby shop use coupon Yes send copy new RADIO CONTROL BUYERS GUIDE D Enclosed $950 $795 plus $1 55 postage us & canada dians Send us funds VA residents add 4% sales tax D charge D Mastercharge D visa charge No________________________ Exp Date _________________ Name Street city State Zip Return Boynton & Associates Inc clifton House clifton virginia 22024 mE i ion special MK III 84 Mono 78 5pn Weight 18 lbs2195 Travel Ai 2000 105 Classc Scale 5plann 23 lbs2295 Travel Ai 4000 99 9adal ing Classic Spe 23 lbs2295 Fokker 0-VII 88 Gernan WW Fglsn Spe 23 lbs2495 Ceeing Scan Sopsnth Pcp 80 Spn Sopacth Tnpnbocnd 80 Tnplane Waco ATO Lyjack Vesoc 90 8placn Nncpo-t 11 Sebe 85 Splanc 3 5 Scale Fockec 081 72 Tcplace Plans shipped U PS Parcel Post Please add $300 torpostaqe liandlino fastest service send postal inoney order No C 00 orders sent BEHRENS PLAN SERVICE 31-27 Healy Ave Far Rockaway NY 11691 in212 337-6987 February 1 982 1 29 Quick Silver $1197 er Bearing Inol Post ste lingSyringe Dispenser Field Repairs No Waste 22000 psi tensile strength Low melting point open flame lighter soldering iron Will Join 14 different combinations metals Wont Blacken Tarnish Seining South THS Hobby Distributors PO Box 914 Rosewell GA 30077
Edition: Model Aviation - 1982/02
Page Numbers: 58, 59, 60, 61, 125, 126, 127, 128, 129
SLOW COMBAT popular control line event parts country Despite its strong following has almost com plete absence kits published plans probably result continuous series rules changes have eliminated coin petitive designs two years 1977 inboard tanks very short noses prevailed 7 8-79 rules stretched noses 5 deregulating tank location delet ing landing gears 1980-81 book outlawed forms inboard tanks Fortunately no changes 1982-83 will disallow equipment Considering rules instability its easy see no has time produce kit magazine article positive effect has interesting variety equipment contest Fuel tanks main factor sets Slow Combat apart other events require ment suction fuel system Fast FAI Combat contestant simply opens up venturi wide possible hooks up pressure tank fuel tank venturi size key factors make contestant competitive another Slow Combat jobs faster tighter-turning other models run suction Sport Stunt setups work event Prior 1978 went through series con ventional uniflow clunk tanks really satisfactory equal compe tition June 1978 issue Model Aviation contained article Don Jehlik chicken hopper tanks completely changed life least respect Slow Combat built chicken hopper soldered onto Perfect square tank first test flight perfectly smooth steady run start finish havent used other form suction tank since principle engine draws fuel tiny hopper thus unaffected sloshing G-forces decreasing volume main tank Longer faster smoother runs result no rich-at-the-start/lean-atthe-end runs no saging enter tight maneuver chicken-hopper tank vital success Dragon too fast tight-turning work conventional tank Airframe design Combat contests won RUBRER TUBING STRAPPING TERE FRONT SPON ITTI TANK FRONT VII SOLID HOLLOW RORFECT UROMMET I/GNALSA INSERT PERFECT H DO L LOW SLUG 5 BALSA INSERT FOAM CUT 0 332 BRASS TONINGSECTrON A-AOWED ROCK WIRE WICKETS EPOGIED IN PLACE INSERT TEMPLATE 2 BEER RIB 0 REOD -VA PLY I2 I2 I-V4 B A-AG BLIND NOTS V2 F TIP TEMPLATE IB PLF NOTCH CSRE TEMPLATES OSE FIROT P OR PLY 714ROOT TEMPLATE ALAWYS KEEP TIE ISAME SIRE OP I4 VA beating series four six opponents Quality airplanes needed win match quantity models needed win contest 1976 World Championships saw British solution challenge foam Super star models featured balsa hardwood center sections foam wings crashes 4 like thought really tearing up competition heres fine weapon Slow Combat Dragon has proven itself well battle Since usually need whole fleet models perhaps better word platoon competitions author describes series imaginative mass-production techniques Smith 58 Model Aviation ar JOhnsOfltOOK ipic55 101I.levulano uauuflguxc Finals 1980 Nationals uragon nas Impressive contest record FULL-SIZE PLANSAVAILABLE SEE PAGE 140 IR PLY ENIDRE MEER2TS VIE P53/JO 53/RE 1222 MEUSTS I/BEI-VBs 10-02 PLYWOLO IIH HOLW# 6 SPRUCE SPAR CAREES2 BELLCRAMn- - RAPPENG TAPE D5IBRO 30 TPREAOED PUSHROD 1/16 BRASS TUBING RING LEADOUTREUCRANI LEADOUT DETAIL 08 BALSA CANOPY LS SIDE VIEW ONWA SPE AL NO BSAOU PPE GH HANRE OP WING TIP CUTTER 3/As 2/2 P82 OR SPRUCE -NICI-WSRE WIRE Iii ill________ ROLLOW /A STRASPENG TAPE JI HALLOW Li LOWER CONTROL MOUNT 2I I/B PLY UPPER COESTROL MCERJT -3/An I/O I/B TOP VIEW UTRAPPNS TAPE TOP BOTTOM HALLOW ROLlS IS TA6 DRAOoN DESIGN ED 8 DRAWN BY PAUL SMITHTO TR22ASFURMER TRACING BY JOE DEMARCOTPANS WIPECCL URUNG BRUCEI/A I-I/O PLY I/As 02 BALSA CAPUTRIP 10 FOAM TURCOE CECICI/B BALSA 01 INSTALL AFTER WINS ISV COVERED I/RV2s2-3R PLYII/SS 3/A WOOD {NICRROME FOS COUTROL HORNSAEK ASEONNECT OURRO CLEVOI/S SCSLE VAEI/O33/AFOAM CUTTEIiI BALSA FELERFULL UCRLE ~FOAM FILLER5R BALSA DDER1/03/A PINE I/A BALSAFIRRING LEFT WING B LEADOETS REMOVESTRIP SPRACE-zz---~-3/A ALSA MARE PEWS EXTRA LEEB TREN TREE AFTER FUSE El/SO PLYTOP ORLYsB BEEN FF1150 TA EEBTER WE BEETS BNUTS3/32 ERASE TUBE TAP 2-SB TEBEAB POWLARE I25 BELSABAR B SOLEER RE EBEEST FLRARUE SOREW B AFT FURWEB BI VBELVSFROEV S/BEllS SF5588 OPTIONAL DETACHABLE TAIL foam wings frequently destroyed wood structure generally survived New foam cores installed later model service again very low cost important models flew better competition Since have built foam wings almost exclusively 1977 Dragons won Dekalb Aero-Challenge MACA #1 Slow also took 5th Nats 1979 1980 Dragons featured detach able tail sections ease transportation repair feature has entirely successful have seldom really needed dis assemble models 1981 fleet will feature permanent tails plans instruc tions cover both options two extremes Combat design eggshell3 battering ram Dragon neither An eggshell airplane extremely light big fragile airplane can Out turn competition will tolerate contact kind battering ram will fly through anything another its kind can sometimes vertical eight Dragon best effort striking compromise between two Materials lumberyard get slab PIVOT PONT A EXACTLY UBOVE URFATE UF TIP cUTTER ____7 3/A STRAPPENG TAPE/ CONTINUOUS WRAP OVER SPARS B AROUND WIND TIPS OVERLAP 0 ON BOTTOM FOAM TIP AL/OAR TIP CUTTING FIXTURE FOP VIEWAER AENT 3/3200 T1 IITB P1LEER ARMSOEEEEEE PEPPER LS AR BRASS- P/IS AD BRASS5 5P FLISETA0VUTBOPES0 3/32/WA111 22 AELES VIEWBEt UIE BR A55 5PM STREP 3/32. I/BS 9/IS PA TUBE BROWS B PEASR NPPER FUEL TANK Heres authors fleet pack herd Dragons set upforthe Canadian Combat ruleawith amrtnrcnr cot wkoola IndavaorvIoao So annA far manS na alone Ion Sn nroain insulating foam 2 x 8 ft 2 wide Density normally 1 lb per cubic foot Genuine Dow Styrofoam light blue stuff about twice density makes planes last fly like furniture Pick up 8-ft length urring strip dont have some scrap wood around house will also need 6 x 1 ft piece plywood particle board foamcutting fixtures either fuselage type youll need 4 hardwood motor mounts plywood 5/32 dowels x 3 balsa 36-in spruce / x qd erfect leadout wires Fox 2-in bellcrank control horn 1/16-in 3/32-in -in brass tubing Dubro 30-in threaded pushrod clevis 4-40 x l-in bolts blind nuts detachable tail also requires 1 x balsa /16 x ce 6-32 x 2-in bolts blind nuts solder-type clevis Titebond used joints use Hot Stuff wood-to-wood Hobbypoxy Formula 2 fuel-proofing motor mount high-stress areas Use low-temperature covering such Solarfilm GBC laminating film foam wings High-temp material such MonoKote Fascal good fuselage tail canopy models require no paint Nylonreinforced strapping tape such 3M used prevent flexing wing Foam-cutting equipment important piece equipment power source have used battery charger past now have American Flyer train transformer cutting bow fully explained plan wing tip cutter As shown photograph drop-wire fixture vertical plank series eyelet guides exactly 1 surface An eighth-inch piano wire held large paper clip being heated An alumi num heat shield protects plank torch Vertical alignment essential evening spent equipment will pay handsome divi dends time saved future models Cut airfoil core templates plywood Use 5/64-in nails align templates foam Mark foam carpenters square felt-tip pen model requires four foam blanks follows 18 x 10 60 Model Aviation Wingtip ieadoutswhich arecutand terminated aftereievatortravel adjusted Doing operation last results lengths Foam-and-balsa turtledeck glued clamped place after wing covered Spruce strip protects balsa clamps chicken hopper tank under construction Large tube hopper small fuel feed Completed tank R has vent plugged leak test Controls Dragon bushed Fox belicrank pushrod guide re inforced elevator one-piece Du-Bro threaded pushrod Fox metal horn Installation pushrod guide must taken seriously Sloppy work point can ruin planes chances competition Heating tip wire drop-wire fixture preparation boring lateral hole wing blank See text CUTTING WIRE FOAM BLOCK WIREHOLESHANDLE SUPPORT BLOCK END STOP 3---BASE RIB TEMPLATE ASSORTED WEIGHTS WALL OR/ COLUMNWOOD PLANK 2xIOx APA NiFIW ci IADELCOFOAM ASSEMBLY r I II II II / URES ITABLE FOAM WING ASSEMBLY METHOD rAPPLY PRESSURE HERE TO SQUEEZE WING HALVES TOGETHER /1 WING TIP CUTTING FIXTURE MACA Nets Smiths campaigned Dragons detachable tails No problems encountered wIth system two years flyIng 17 x 10 two 5 x 10 can get four models 8-ft slab plan building foamies make big mitre box cut blanks have someone hold straightedge vertically against side cut blanks Take blanks drop-wire fixture well-ventilated area Clamp fixture true vertical position using level core tem plate align blank under wire Keep fire Continued page 125 February 1982 61 can take eyes off lovely Moire Smith look drop-wire fixture rack completed Dragons background 1981 model Dragon like 1981 VW best changes internal Pinstriping tape along leading edge helps protect against dings cuts caused eating other peoples streamers secret Paul Smiths mass-produced Dragonsquality control inspections Ink lines indicate gluing area stab left bare Moire Smith checks five-in nose alignment gauge FOAM ASSEMBLY FIXTURE plus $3 postage Simplex 143 Richmond Street El Segundo CA 90245 Crocket/FAI winder converted purchaser English hand drill die cast nylon case completely encloses metal gears Thrust load carried special ball thrust race crank supplied rather short can easily replaced longer made bar stock winding knob appears too small might want replace drill chuck furnished discarded replaced wire hook Parts instructions conver sion included Price $2400 plus $285 freight Crocket P0 Box 12600 Fresno CA 93778 $2950 plus $295 freight FAI Model Supply P0 Box 3957 Torrance CA 90510 Bob Meuser 4200 Gregory St Oakland CA 94619 Dragon/Smith Continued page 61 extinguisher water bucket handy Heat point wire red hot Set torch down release paper clip wire should pierce straight hole through blank can make hole larger smaller varying temper ature wire Excessive heat can cause oversize hole too little heat can result wire wandering off center may well pierce four sets youre pierce 5-in tip blanks Next comes hot-wire cutting Clear off large enough area cores lay flat bench blank templates held square bench templates square leading edge nail templates foam Always keep same side up avoid creating warp templates arent quite symmetrical Adjust transformer give good clean cut dragging wire making too wide cut Practice some scrap After cutting spar notches disconnect wire thread through pierced hole Cut void disconnect wire again pull Out wire scrap Use same nail holes align airfoil templates Airfoils cut four separate passes starting always spar notch now have fixture front spar slot earlier models front spar slot cut manually-held straightedges Tips cut airfoil template tip-cutting fixture Cut top first bottom removing top scrap sure position both template center line pivot point exactly 1 above base Glue outboard wing tips outboard wings time Position insert wing tip templates inboard tip cut out insert Glue leadout mount tip glue tip inboard wing Sand cut Y8 off top scrap save install later Use Titebond glue joints should also make two 24-in assembly fixtures time Use airfoil templates cut two cradles foam make clear ance notches engine mount tail required one-picce fuselage cut furring strip length glue pine spruce spacers bring front end up dimension 125 dry file spar notches two-piece fuselage file bellcrank-mount notches inapiece in balsa glue x -in spruce both top bottom dry cut center rib tail boom Sand center rib match airfoil sand tail boom fit rib Using center rib alignment glue 3/16 capstrips tail boom dry sand off excess glue drill Introducing New H S Hornet 42 CID 6 1/3 HP Only 6 1/4 lbs New AMA 1 982-83 Rules 44 Limit -- Make 42 CID Legal 5 1/2 center top cylinder head 3 1/2 center side carb Perfect 1/4 scale P-51 1/3 Pitts Very smooth running Like Quadra Optional twin-stack nrclfln Smoke cnsjoitntnlahlo Sit oh 5 en o sea lab Saabln-ing pioton Icr higher cotnpnssion s tile Optional choho Enan hand stoning Spocial clone- coopind heh-tnnoitn oentnm lot moo AF adjatior Solid- know teen macnt op tional radial soppottsatas[ Rotter Ibroot- hearing noolosionly tnan model ainonft Youll Love Partner An updated version popular engine Note improve ments made especially mini ature aircraft use roller thrust bearing double-ring piston soark olug location low 13 1/21 S more power output LIMITED TIME OFFER LIST $14995 SALE $9995 seal knits qinnar Fnwsr-bnlnncnd IihO-wnightwink starlnr toed geanes finebentReact-date prop bob MORE HORNER SPECIAL PART RETAIL SALE 772$24955$75900 77927200$77555 7777250059995 7087250059995 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 79 ROPER ENGINE NEW Sale Last) 79 ENGINE NUB 8 MOUNT PACK 79 USEO DEMO ENGINE BALENCED 6BOLT HUB Repay Patnar N Ouad4 PROP ORILL JIG 709 779 770 7077495 702$7795 So compact measures much larger Quadra Partner engine Comes complete built choke 6 bolt prop hub Radial mount available twin stack INTRO $19995 SALE 1255 7200 2455 7555 500 7595 755 2 75 Write yr CALL Seed 20c Stamp CatalogWill Ship Orders Same Day cODUPSAdd 54 shipping per engine HOR N ER SALES INC Rt 2 Box 9 300 Dixie Hwy. 312 946-2515 Beecher IL 60401 PEANUT-PEOPLE PRESENT PEANUT SCALE MODELS MuSTANG MILES M-18ZERO DRuINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY M-lO Rubber Powered Balsa Tissue Kite $595 SPORT MODELS PRAIRIE BIRD 4 KIT $595 BABY ACE$649 ONE NITE 20$095 ONE NITE tO$595 STRINGLESS WONDER$495 PECK ROG$195 RUBBER OR 00-2 POWERED BUILDING NEEDS V PROPS TISSUE RUBBER WINDERS BLADE SHARPENERS BEARINGS PROP SHAFTS LUBE WASHERS WHEELS FUSE CO2 MOTORS BOOKS PLANS MORE ADVENTURE MODELS IPONY BLIMP ttFTRICAIRSHIP -KIT $24900 COMPLETE CATALOG $100 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS PeckPeIymers SILK 5/YL $445/rD RedYelIow Royul Blue Fine Quality Model Building Any Length Max 5OYd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SIIIPPINGt ADO 50 FOREIGN 150/ORDER NY RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROADn NEW CITY NY 914- 634-850010956 P 0 BOX 2498-MA LA MESA CALIF 92041 PHONE 714 469-8075 714 442-4630 February 1 982 1 25 List $28995 Enginenub Shown wan option al mount & choke SALE $17995 RAOIAL MOUNTRapar 378 79 703 RAOIAL MOUNT Partner 723 TWIN STACK EXHAUST 37 8 Kiarita 705 TWIN STACK EXHAUST Partner Oaadra 720 CHOKE ASSEMBLY Parmer 5 Ooaadraj 727 9500 3955 BRITE SPINNER Repec Part N Quad 722 6500NEOPRENE GAS LINE Per Feet707 2500 RESISTOR SPARK PLUG RCJ-6 773 BIG PROPS VAILABLEI Finished Balanced Weed Aviation Jewelry Custom Made Reproduce Plating Gold Rhodium Bright Nickel White Metal Molding Largest Aircraft Jewelry Selection World Also flight School wings mylar decals jacket patches novelties Plus Fine Hard-Fired Enamel er Special priCRO Re volume orders Call write today Simi-Air214 596-3505 19107 Creeks Dr. Dallas TX 75252 r CakQie R/C 0 VAN NUYS CA 91408 SPORT CARS PO BOX R/C GOODIES 3 II PORSCHEPORSCHE 917K BMW-MI IU U Iw 111/21nIg15-3/4inCHARGER15-3/4inI $6495Reg $7995$995Reg $8295 InI $4295SPEC$5295.-CH TXSPEC$5495 flu CHARLIES NEW 1/12SCALE R/C CARS COMEASSEMBLEDREADY TO RUN COMPLETE WITH 2-CM TRANSMITTER AND WITH RECEIVER AND SERVOS IN LED 27 MHZ ONLY BATTERIES NOT INCLUDED DECALS ARE FURNISHED CARS FEATURE FULLY PROPORTIONAL STEERING WITH AUTOMATIC NEUTRAL PLUS VARIABLE SPEED CONTROL BOTH FORWARD AND REVERSE PORSCHE 935 AND BMW-Mi ALSO HAVE OPERATING R/L TURN SIGNALS PLUS STOP LIGHTS LOW POWER TRANSMITTER BELOW 100 MW REQUIRES NO LICENSE FUN FOR THE WHOLE FAMILYI CATALOG 6W L L70Fore - SHIPPING -$400 USA CAUF RESIDENTS ADD SALES TAX NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed Aotomatieelly align fuselage structures ate built strings measuring eyeballing Simply slide four centeting brackets track until align firewall tail uint two bulkheads Clamp fuselage together lightly mith rubberbands structure mill thee straight track ucaurnmoduIesmrudusuetufoufS Price 2995 ILI Miter Master Miter Master tool designed enable crafts man make perfect joists mood accurately sanding pre-setangles ThesguaringfencnA allowoforprecisegO angles atd retracts below surface Any angle cay beset triangular guide using adjacent side complement angle mill turmed making invaluable truss construction new cyanoacrylate adhesives require accurately fitted loints achieve full strength Miter Master mill enableyso make easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 Pnce $750 Ausembled bound 503 357-2732 Navy Best Ducted Fans SKYRA Y F4D- Plan FormDesigned Bill Effinger Its f Radio Control SKYNAY NAVY F4D1 Scale Ducted Fan RIO RK-20 Fan Unit ong Plan Set RODF-1 $1995 Prices Complete Plana Sub Assembly Detailed Parts Liats Add $200 Mailing Tube Send Brochure Details new designs & great things come Send $100 refundable information two assembly bolts 6-32 x 2-in Glue upper lower bellcrank mounts peg -in dowel Remember peg goes through center rib tail boom Round off aft end tail boom cut stab slot Motor mount Glue clamp hardwood beams center rib fuselage drying add two vertical spacers dry glue clamp 1/32 outboard ard plywood doublers outboard doubler must high-strength plywood such Sigs inboard doubler can lighter 3-ply type such supplied Balsa USA Sand motor mounts doublers shape drill motor bolt holes 9/64-in tank wire hole 1/16-in dowel holes 5/32-in Install sand dowels smooth Using Dremel tool end mill cutter fit engine mount engine Mix up small batch Hobbypoxy Formula 2 warming heat gun stirring stick until thins out consistency clear dope Spread warm glue over motor mount being sure get bolt holes Apply heat finger-paint smooth final application heat will remove finger prints Hang assembly nose-down dry Control system system designed re use mind Fox 2-in bellcrank provides adequate stability better strength less weight popular 3-in model Cut two -in sections 3/32-in tubing leadout guides slip onto full-length pack Perfect BC leadout cable Cut two 1-in sections 1/16in brass tubing bushings slip onto ends bend horseshoe shape insert bellcrank bind copper wire solder leadouts cut terminated after final assembly airplane one-piece model uses Du-Bro 30-in threaded pushrod Z-bend bellcrank end two-piece version uses same rod cut behind trailing edge short length 3/3 2-in brass tube tapped 2-56 thread bound soldered front end terminated control horn soldered clevis Fox metal control horn used heavy-duty pushrod guide fabricated Vs-in tubing bound soldered piano wire screwed epoxied fuselage failure guide could cause loss control need Tail canopy canopy rudder made Ye balsa covered before installa tion stabilizer /a balsa n spruce spar trailing edge elevator also a 1/32 plywood patch top mount control horn prevent splitting along grain Mark gluing area felt-tip pen cover hinge stab elevator before assembly use either Fascal Mono Kote both covering hinges iron-on hinge method described April 1979 Model Aviation has used complete success models since article published Assembly Glue front vertical spar outboard wing taping masking tape Sand runs motor mount redrill -in mounting bolt holes recheck engine fit Glue outboard wing fuselage center rib youre building two-piece model Use two chains rubberbands hold assembly together drying Some scrap cardboard under bands needed protect foam wing tip drying can install stab 126 Model Aviation LGLOW lireb cdl PLUGS 0 Blow Proof Seal OSix Types 3 Heat Ranges S Longer Life S Flash Starting Only $120 SWANSON Aiwe PO Box 1517948 Wayne NJ 07470 eAmerican made Schnuerle ports eDouble ball bearing sPerry carburetor eForged & domed piston 0 Forged &rod 0-ring sealed back cover lnvestment cast crankcase Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA cA 91107 213 359-0016 795-9821 assembly set up controls rubberbands can removed fit inboard wing onto model may require several tries get proper clearances cut controls motor mount assembly fixture simply two 24-in foam slabs airfoil shapes cut wood plank some waxed paper whatever assorted weights handy Glue inboard wing spars airplane Titebond place model between waxed-paper-covered foam cradles stack plank weights top wing tip should against wall can press against other get good tight joint next day remove model fixture install leadouts pinned balsa inserts wire wickets glued epoxy Hot Stuff baking soda scrap foam now re-inserted one-piece model also needs foam fillers between wings Ask GMP dealer details3U CRAFTSMAN HO TEL 213-992-0195 GMP GORHAA4 MODEL PRODUCTS CALABABAB CA 91305 TVVX 9104945833 February 1982 127 RJL [the ULTIRTE fluing machine K61 Suggested Retail $14800 Muffler Included New Expandable concept R/C Helicopters Competitor will fly 45 50 60 size engines model can take novice flying winning AMA expert class Advanced design features never before seen RIG Helicopter Triple ball bearings main tail rotor hubs5Light weight metal construction Autorotation standard5Low cost parts aControls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Dual ball bearing tail pitch controlSpiral hypoid gears main tail drives WHAM SHOW 82 Dont miss greatest Radio Control Show East Westchester County Center White Plains NY fts 14th annual show its sure biggest best ever Keep fleet last week end Febma19 open 1992 WRAMs Shew going te largest yet Well seer 150 manufacturers ether enhibi tors hare already signed up bring eserything thatneemin hobby . hits engines radios accessories neery thing betweer farrtous Swap Shep will lull operatise thousands ot items including built-up planes almest sew radios engines on en sowething just about eseryone Static Cumpetltlue Make sum latest creation tinished ep ard polished poell hare chance take home et dozens troyhies offered eseef 5 rOSTuuIuso r roC sours rusT s,u r5050 500 50005 0050 ursoso Curs stubS Foss rrLoo 5050 Judging taken ylaoe Suraae utternoon Entries acceyted until 12 soon Sunday Synural udmisuien area will prosided en 501 h days tsr static display sontentanto city Suilt-sp models [ BROWN A-23 CO-2 TINY PEANUT CO-2 ENGINE ENGINE $359S CHARCEN 5995 3/4 COMPLETE CATALOG $100 PHONE 714 469-9975 er 442 4838 Peck-Pelyiners BOX 2498-MA LA MESA CALIF 92041 over fuselage two-piece model needs balsa fillers behind spSrs dry give whole wing light sanding blend parts together remove glue runs Clean wing soft brush vacuum cleaner Apply nylon strap ping tape shown plans essential prevent flexing breaking glue joints may also want add strip tape near leading edge prevent streamers cutting too far foam Add AMA numbers other decorations before covering Covering Very low-heat material needed melting foam Cut four pieces 25 x 12 allow overlapping tips center leading trailing edges Lay piece cover ing over one-quarter wing iron line down spar Work iron away line toward leading trailing edges will keep air bubbles being trapped under covering Cut slits covering laps around tip edges also helps prevent wrinkling remaining three sides same way fuselage one-piece models needs built up foam turtledeck capped balsa strip front strip needs tacked place Hot Stuff remainder clamped place under spruce strip glued hegisfoution 01 models sill start &30 am mooring SWAP SHOP WROMs Soap Shop has some see 51 major show altruc tiers thOusands 01 irdluidual items charging harde help olimirute registration Orssh 1502 group Shop ciii proviSo tsr pro regintratier terms seoniur forms nerd neltuodressed stamp ed enselepe JeOr shinIer 4 sever Rd Luoshmunt NY 10530 SPECIAL NOTE pearthere ciii Seer restriotises rumser St bsiltup coduls registrant nay place Scap Shop ruorrrrrtarrratisr crOOr 00 CurS 5005cr 55 Cneoeicr no cross ruirr 5Y tdWa 19041 mO-5usr cEnecopenEe fuels eEfSMOSSLEe5 50 lebruary 20/21 lOAM to6PM SCL I ScALE DRAWINGSIA PHOTOS BOOKLETS iG jREPLA-T2CH asSINTERNATIONAL 1931 CATALOGS $200 49500 IVtC KENZIE HIFVY ____________ VIDA OREGON 97489 Titebond Fuel-proof joint between covering motor mount warmed Hobbypoxy Cover fuselage plastic film Install pushrod guide rudder canopy fuel tank wires Fuel tank construction Materials 010-in brass shim stock 3/32 -in OD brass tubing Sears 60/40 solder Kester soldering paste flux Weller electric solder ing gun rather torch used wood form shape tank helpful essential Cut out three parts main tank solder front seam add top bottom Sharp edges should filed smooth taking care clean up lead dust Insert two filler tubes pressure-test under water tank airtight drill four holes outboard side two front Install fuel feed air vent tubes Make chicken-hopper out short piece 9/16-in tubing shim stock lid File bottom hopper tight fit tank solder place Note hopper Vs above centerline compensate richening out inverted Pressure-test tank under water again Clean tank hot water baking soda install Dragon foam rubber pad 128 Model Aviation N underneath rubber tubing over tank wires protection fuel filter may need frequent cleaning first new tank Engines Fox Combat Special Mark III has standard engine Dragon Future models will feature Mark IV have yet opportunity test Supertigre G2 have used some loss speed 05 36 has used some success local contests OS equals Fox speed adds too much weight good maneuverability opinion Fox consistently pulls Dragon 92 94 mph 15% nitro exceptional engine able break 100 several times 30% get under 90 something wearing out modifications replace rear bearing Hoover-NSK R8 78 use Supertigre needle valve assembly venturi insert wrapped polyethelene plastic form air seal head clearance set 015 018 essential good performance Break-in via bench running 9-6 prop cut 8 Lapping required certain very tight replacement pistons sleeves like Fox becasue runs right Out box doesnt take time away important things like fuel tanks Flying completed airplane should weigh 265 ounces balance 25% chord slightly outboard thrust line sidemounted engine leadout position offset wing provide line tension necessary recommend tip weight engine out-thrust rudder offset Make initial test flight engine set rich side until become familiar needling engine chicken hopper tank Foamies can become warped covering assembly check out use iron trim tabs correct warp plane feels too sluggish go aft CG control Ive never come Out tail-heavy yet Top Flite 9-5s 9-6s cut 8-6 work well have four Dragons tested trimmed out should ready contest CL Aerobatics Paul Continued page 62 Bill Lindemann Metuchen NJ wrote question come results WinstonSalem CL Championships showed Novice Beginner scores 454 442 431 Well thats good question does show voluntary placing usually allow contestants seed themselves category choice doesnt always work out numbers However lets also remember what 454 region may another because ofjudging differences abilities competitors etc scores shown Advanced Expert categories results contest sent writer however can surmise Experts probably scored 520 over Advanced falling somewhere between 450 500 What says PAMPA categories dont always work right down line since contest management still refuses have four cate gories Winston-Salem meet will necessarily some place scores will off usual scale place Richard Byrons records pilots scores would come handy contest management reference guide Perhaps could have copies pilots rankings sent major NOT JUST ANOTHER CATALOG novice tips experts expert thousands products specifica tions photos help decide make hobby enjoyable everybody interested RI Its standard reference book Will Ever Need Available through local hobby shop use coupon Yes send copy new RADIO CONTROL BUYERS GUIDE D Enclosed $950 $795 plus $1 55 postage us & canada dians Send us funds VA residents add 4% sales tax D charge D Mastercharge D visa charge No________________________ Exp Date _________________ Name Street city State Zip Return Boynton & Associates Inc clifton House clifton virginia 22024 mE i ion special MK III 84 Mono 78 5pn Weight 18 lbs2195 Travel Ai 2000 105 Classc Scale 5plann 23 lbs2295 Travel Ai 4000 99 9adal ing Classic Spe 23 lbs2295 Fokker 0-VII 88 Gernan WW Fglsn Spe 23 lbs2495 Ceeing Scan Sopsnth Pcp 80 Spn Sopacth Tnpnbocnd 80 Tnplane Waco ATO Lyjack Vesoc 90 8placn Nncpo-t 11 Sebe 85 Splanc 3 5 Scale Fockec 081 72 Tcplace Plans shipped U PS Parcel Post Please add $300 torpostaqe liandlino fastest service send postal inoney order No C 00 orders sent BEHRENS PLAN SERVICE 31-27 Healy Ave Far Rockaway NY 11691 in212 337-6987 February 1 982 1 29 Quick Silver $1197 er Bearing Inol Post ste lingSyringe Dispenser Field Repairs No Waste 22000 psi tensile strength Low melting point open flame lighter soldering iron Will Join 14 different combinations metals Wont Blacken Tarnish Seining South THS Hobby Distributors PO Box 914 Rosewell GA 30077
Edition: Model Aviation - 1982/02
Page Numbers: 58, 59, 60, 61, 125, 126, 127, 128, 129
SLOW COMBAT popular control line event parts country Despite its strong following has almost com plete absence kits published plans probably result continuous series rules changes have eliminated coin petitive designs two years 1977 inboard tanks very short noses prevailed 7 8-79 rules stretched noses 5 deregulating tank location delet ing landing gears 1980-81 book outlawed forms inboard tanks Fortunately no changes 1982-83 will disallow equipment Considering rules instability its easy see no has time produce kit magazine article positive effect has interesting variety equipment contest Fuel tanks main factor sets Slow Combat apart other events require ment suction fuel system Fast FAI Combat contestant simply opens up venturi wide possible hooks up pressure tank fuel tank venturi size key factors make contestant competitive another Slow Combat jobs faster tighter-turning other models run suction Sport Stunt setups work event Prior 1978 went through series con ventional uniflow clunk tanks really satisfactory equal compe tition June 1978 issue Model Aviation contained article Don Jehlik chicken hopper tanks completely changed life least respect Slow Combat built chicken hopper soldered onto Perfect square tank first test flight perfectly smooth steady run start finish havent used other form suction tank since principle engine draws fuel tiny hopper thus unaffected sloshing G-forces decreasing volume main tank Longer faster smoother runs result no rich-at-the-start/lean-atthe-end runs no saging enter tight maneuver chicken-hopper tank vital success Dragon too fast tight-turning work conventional tank Airframe design Combat contests won RUBRER TUBING STRAPPING TERE FRONT SPON ITTI TANK FRONT VII SOLID HOLLOW RORFECT UROMMET I/GNALSA INSERT PERFECT H DO L LOW SLUG 5 BALSA INSERT FOAM CUT 0 332 BRASS TONINGSECTrON A-AOWED ROCK WIRE WICKETS EPOGIED IN PLACE INSERT TEMPLATE 2 BEER RIB 0 REOD -VA PLY I2 I2 I-V4 B A-AG BLIND NOTS V2 F TIP TEMPLATE IB PLF NOTCH CSRE TEMPLATES OSE FIROT P OR PLY 714ROOT TEMPLATE ALAWYS KEEP TIE ISAME SIRE OP I4 VA beating series four six opponents Quality airplanes needed win match quantity models needed win contest 1976 World Championships saw British solution challenge foam Super star models featured balsa hardwood center sections foam wings crashes 4 like thought really tearing up competition heres fine weapon Slow Combat Dragon has proven itself well battle Since usually need whole fleet models perhaps better word platoon competitions author describes series imaginative mass-production techniques Smith 58 Model Aviation ar JOhnsOfltOOK ipic55 101I.levulano uauuflguxc Finals 1980 Nationals uragon nas Impressive contest record FULL-SIZE PLANSAVAILABLE SEE PAGE 140 IR PLY ENIDRE MEER2TS VIE P53/JO 53/RE 1222 MEUSTS I/BEI-VBs 10-02 PLYWOLO IIH HOLW# 6 SPRUCE SPAR CAREES2 BELLCRAMn- - RAPPENG TAPE D5IBRO 30 TPREAOED PUSHROD 1/16 BRASS TUBING RING LEADOUTREUCRANI LEADOUT DETAIL 08 BALSA CANOPY LS SIDE VIEW ONWA SPE AL NO BSAOU PPE GH HANRE OP WING TIP CUTTER 3/As 2/2 P82 OR SPRUCE -NICI-WSRE WIRE Iii ill________ ROLLOW /A STRASPENG TAPE JI HALLOW Li LOWER CONTROL MOUNT 2I I/B PLY UPPER COESTROL MCERJT -3/An I/O I/B TOP VIEW UTRAPPNS TAPE TOP BOTTOM HALLOW ROLlS IS TA6 DRAOoN DESIGN ED 8 DRAWN BY PAUL SMITHTO TR22ASFURMER TRACING BY JOE DEMARCOTPANS WIPECCL URUNG BRUCEI/A I-I/O PLY I/As 02 BALSA CAPUTRIP 10 FOAM TURCOE CECICI/B BALSA 01 INSTALL AFTER WINS ISV COVERED I/RV2s2-3R PLYII/SS 3/A WOOD {NICRROME FOS COUTROL HORNSAEK ASEONNECT OURRO CLEVOI/S SCSLE VAEI/O33/AFOAM CUTTEIiI BALSA FELERFULL UCRLE ~FOAM FILLER5R BALSA DDER1/03/A PINE I/A BALSAFIRRING LEFT WING B LEADOETS REMOVESTRIP SPRACE-zz---~-3/A ALSA MARE PEWS EXTRA LEEB TREN TREE AFTER FUSE El/SO PLYTOP ORLYsB BEEN FF1150 TA EEBTER WE BEETS BNUTS3/32 ERASE TUBE TAP 2-SB TEBEAB POWLARE I25 BELSABAR B SOLEER RE EBEEST FLRARUE SOREW B AFT FURWEB BI VBELVSFROEV S/BEllS SF5588 OPTIONAL DETACHABLE TAIL foam wings frequently destroyed wood structure generally survived New foam cores installed later model service again very low cost important models flew better competition Since have built foam wings almost exclusively 1977 Dragons won Dekalb Aero-Challenge MACA #1 Slow also took 5th Nats 1979 1980 Dragons featured detach able tail sections ease transportation repair feature has entirely successful have seldom really needed dis assemble models 1981 fleet will feature permanent tails plans instruc tions cover both options two extremes Combat design eggshell3 battering ram Dragon neither An eggshell airplane extremely light big fragile airplane can Out turn competition will tolerate contact kind battering ram will fly through anything another its kind can sometimes vertical eight Dragon best effort striking compromise between two Materials lumberyard get slab PIVOT PONT A EXACTLY UBOVE URFATE UF TIP cUTTER ____7 3/A STRAPPENG TAPE/ CONTINUOUS WRAP OVER SPARS B AROUND WIND TIPS OVERLAP 0 ON BOTTOM FOAM TIP AL/OAR TIP CUTTING FIXTURE FOP VIEWAER AENT 3/3200 T1 IITB P1LEER ARMSOEEEEEE PEPPER LS AR BRASS- P/IS AD BRASS5 5P FLISETA0VUTBOPES0 3/32/WA111 22 AELES VIEWBEt UIE BR A55 5PM STREP 3/32. I/BS 9/IS PA TUBE BROWS B PEASR NPPER FUEL TANK Heres authors fleet pack herd Dragons set upforthe Canadian Combat ruleawith amrtnrcnr cot wkoola IndavaorvIoao So annA far manS na alone Ion Sn nroain insulating foam 2 x 8 ft 2 wide Density normally 1 lb per cubic foot Genuine Dow Styrofoam light blue stuff about twice density makes planes last fly like furniture Pick up 8-ft length urring strip dont have some scrap wood around house will also need 6 x 1 ft piece plywood particle board foamcutting fixtures either fuselage type youll need 4 hardwood motor mounts plywood 5/32 dowels x 3 balsa 36-in spruce / x qd erfect leadout wires Fox 2-in bellcrank control horn 1/16-in 3/32-in -in brass tubing Dubro 30-in threaded pushrod clevis 4-40 x l-in bolts blind nuts detachable tail also requires 1 x balsa /16 x ce 6-32 x 2-in bolts blind nuts solder-type clevis Titebond used joints use Hot Stuff wood-to-wood Hobbypoxy Formula 2 fuel-proofing motor mount high-stress areas Use low-temperature covering such Solarfilm GBC laminating film foam wings High-temp material such MonoKote Fascal good fuselage tail canopy models require no paint Nylonreinforced strapping tape such 3M used prevent flexing wing Foam-cutting equipment important piece equipment power source have used battery charger past now have American Flyer train transformer cutting bow fully explained plan wing tip cutter As shown photograph drop-wire fixture vertical plank series eyelet guides exactly 1 surface An eighth-inch piano wire held large paper clip being heated An alumi num heat shield protects plank torch Vertical alignment essential evening spent equipment will pay handsome divi dends time saved future models Cut airfoil core templates plywood Use 5/64-in nails align templates foam Mark foam carpenters square felt-tip pen model requires four foam blanks follows 18 x 10 60 Model Aviation Wingtip ieadoutswhich arecutand terminated aftereievatortravel adjusted Doing operation last results lengths Foam-and-balsa turtledeck glued clamped place after wing covered Spruce strip protects balsa clamps chicken hopper tank under construction Large tube hopper small fuel feed Completed tank R has vent plugged leak test Controls Dragon bushed Fox belicrank pushrod guide re inforced elevator one-piece Du-Bro threaded pushrod Fox metal horn Installation pushrod guide must taken seriously Sloppy work point can ruin planes chances competition Heating tip wire drop-wire fixture preparation boring lateral hole wing blank See text CUTTING WIRE FOAM BLOCK WIREHOLESHANDLE SUPPORT BLOCK END STOP 3---BASE RIB TEMPLATE ASSORTED WEIGHTS WALL OR/ COLUMNWOOD PLANK 2xIOx APA NiFIW ci IADELCOFOAM ASSEMBLY r I II II II / URES ITABLE FOAM WING ASSEMBLY METHOD rAPPLY PRESSURE HERE TO SQUEEZE WING HALVES TOGETHER /1 WING TIP CUTTING FIXTURE MACA Nets Smiths campaigned Dragons detachable tails No problems encountered wIth system two years flyIng 17 x 10 two 5 x 10 can get four models 8-ft slab plan building foamies make big mitre box cut blanks have someone hold straightedge vertically against side cut blanks Take blanks drop-wire fixture well-ventilated area Clamp fixture true vertical position using level core tem plate align blank under wire Keep fire Continued page 125 February 1982 61 can take eyes off lovely Moire Smith look drop-wire fixture rack completed Dragons background 1981 model Dragon like 1981 VW best changes internal Pinstriping tape along leading edge helps protect against dings cuts caused eating other peoples streamers secret Paul Smiths mass-produced Dragonsquality control inspections Ink lines indicate gluing area stab left bare Moire Smith checks five-in nose alignment gauge FOAM ASSEMBLY FIXTURE plus $3 postage Simplex 143 Richmond Street El Segundo CA 90245 Crocket/FAI winder converted purchaser English hand drill die cast nylon case completely encloses metal gears Thrust load carried special ball thrust race crank supplied rather short can easily replaced longer made bar stock winding knob appears too small might want replace drill chuck furnished discarded replaced wire hook Parts instructions conver sion included Price $2400 plus $285 freight Crocket P0 Box 12600 Fresno CA 93778 $2950 plus $295 freight FAI Model Supply P0 Box 3957 Torrance CA 90510 Bob Meuser 4200 Gregory St Oakland CA 94619 Dragon/Smith Continued page 61 extinguisher water bucket handy Heat point wire red hot Set torch down release paper clip wire should pierce straight hole through blank can make hole larger smaller varying temper ature wire Excessive heat can cause oversize hole too little heat can result wire wandering off center may well pierce four sets youre pierce 5-in tip blanks Next comes hot-wire cutting Clear off large enough area cores lay flat bench blank templates held square bench templates square leading edge nail templates foam Always keep same side up avoid creating warp templates arent quite symmetrical Adjust transformer give good clean cut dragging wire making too wide cut Practice some scrap After cutting spar notches disconnect wire thread through pierced hole Cut void disconnect wire again pull Out wire scrap Use same nail holes align airfoil templates Airfoils cut four separate passes starting always spar notch now have fixture front spar slot earlier models front spar slot cut manually-held straightedges Tips cut airfoil template tip-cutting fixture Cut top first bottom removing top scrap sure position both template center line pivot point exactly 1 above base Glue outboard wing tips outboard wings time Position insert wing tip templates inboard tip cut out insert Glue leadout mount tip glue tip inboard wing Sand cut Y8 off top scrap save install later Use Titebond glue joints should also make two 24-in assembly fixtures time Use airfoil templates cut two cradles foam make clear ance notches engine mount tail required one-picce fuselage cut furring strip length glue pine spruce spacers bring front end up dimension 125 dry file spar notches two-piece fuselage file bellcrank-mount notches inapiece in balsa glue x -in spruce both top bottom dry cut center rib tail boom Sand center rib match airfoil sand tail boom fit rib Using center rib alignment glue 3/16 capstrips tail boom dry sand off excess glue drill Introducing New H S Hornet 42 CID 6 1/3 HP Only 6 1/4 lbs New AMA 1 982-83 Rules 44 Limit -- Make 42 CID Legal 5 1/2 center top cylinder head 3 1/2 center side carb Perfect 1/4 scale P-51 1/3 Pitts Very smooth running Like Quadra Optional twin-stack nrclfln Smoke cnsjoitntnlahlo Sit oh 5 en o sea lab Saabln-ing pioton Icr higher cotnpnssion s tile Optional choho Enan hand stoning Spocial clone- coopind heh-tnnoitn oentnm lot moo AF adjatior Solid- know teen macnt op tional radial soppottsatas[ Rotter Ibroot- hearing noolosionly tnan model ainonft Youll Love Partner An updated version popular engine Note improve ments made especially mini ature aircraft use roller thrust bearing double-ring piston soark olug location low 13 1/21 S more power output LIMITED TIME OFFER LIST $14995 SALE $9995 seal knits qinnar Fnwsr-bnlnncnd IihO-wnightwink starlnr toed geanes finebentReact-date prop bob MORE HORNER SPECIAL PART RETAIL SALE 772$24955$75900 77927200$77555 7777250059995 7087250059995 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 79 ROPER ENGINE NEW Sale Last) 79 ENGINE NUB 8 MOUNT PACK 79 USEO DEMO ENGINE BALENCED 6BOLT HUB Repay Patnar N Ouad4 PROP ORILL JIG 709 779 770 7077495 702$7795 So compact measures much larger Quadra Partner engine Comes complete built choke 6 bolt prop hub Radial mount available twin stack INTRO $19995 SALE 1255 7200 2455 7555 500 7595 755 2 75 Write yr CALL Seed 20c Stamp CatalogWill Ship Orders Same Day cODUPSAdd 54 shipping per engine HOR N ER SALES INC Rt 2 Box 9 300 Dixie Hwy. 312 946-2515 Beecher IL 60401 PEANUT-PEOPLE PRESENT PEANUT SCALE MODELS MuSTANG MILES M-18ZERO DRuINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY M-lO Rubber Powered Balsa Tissue Kite $595 SPORT MODELS PRAIRIE BIRD 4 KIT $595 BABY ACE$649 ONE NITE 20$095 ONE NITE tO$595 STRINGLESS WONDER$495 PECK ROG$195 RUBBER OR 00-2 POWERED BUILDING NEEDS V PROPS TISSUE RUBBER WINDERS BLADE SHARPENERS BEARINGS PROP SHAFTS LUBE WASHERS WHEELS FUSE CO2 MOTORS BOOKS PLANS MORE ADVENTURE MODELS IPONY BLIMP ttFTRICAIRSHIP -KIT $24900 COMPLETE CATALOG $100 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS PeckPeIymers SILK 5/YL $445/rD RedYelIow Royul Blue Fine Quality Model Building Any Length Max 5OYd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SIIIPPINGt ADO 50 FOREIGN 150/ORDER NY RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROADn NEW CITY NY 914- 634-850010956 P 0 BOX 2498-MA LA MESA CALIF 92041 PHONE 714 469-8075 714 442-4630 February 1 982 1 25 List $28995 Enginenub Shown wan option al mount & choke SALE $17995 RAOIAL MOUNTRapar 378 79 703 RAOIAL MOUNT Partner 723 TWIN STACK EXHAUST 37 8 Kiarita 705 TWIN STACK EXHAUST Partner Oaadra 720 CHOKE ASSEMBLY Parmer 5 Ooaadraj 727 9500 3955 BRITE SPINNER Repec Part N Quad 722 6500NEOPRENE GAS LINE Per Feet707 2500 RESISTOR SPARK PLUG RCJ-6 773 BIG PROPS VAILABLEI Finished Balanced Weed Aviation Jewelry Custom Made Reproduce Plating Gold Rhodium Bright Nickel White Metal Molding Largest Aircraft Jewelry Selection World Also flight School wings mylar decals jacket patches novelties Plus Fine Hard-Fired Enamel er Special priCRO Re volume orders Call write today Simi-Air214 596-3505 19107 Creeks Dr. Dallas TX 75252 r CakQie R/C 0 VAN NUYS CA 91408 SPORT CARS PO BOX R/C GOODIES 3 II PORSCHEPORSCHE 917K BMW-MI IU U Iw 111/21nIg15-3/4inCHARGER15-3/4inI $6495Reg $7995$995Reg $8295 InI $4295SPEC$5295.-CH TXSPEC$5495 flu CHARLIES NEW 1/12SCALE R/C CARS COMEASSEMBLEDREADY TO RUN COMPLETE WITH 2-CM TRANSMITTER AND WITH RECEIVER AND SERVOS IN LED 27 MHZ ONLY BATTERIES NOT INCLUDED DECALS ARE FURNISHED CARS FEATURE FULLY PROPORTIONAL STEERING WITH AUTOMATIC NEUTRAL PLUS VARIABLE SPEED CONTROL BOTH FORWARD AND REVERSE PORSCHE 935 AND BMW-Mi ALSO HAVE OPERATING R/L TURN SIGNALS PLUS STOP LIGHTS LOW POWER TRANSMITTER BELOW 100 MW REQUIRES NO LICENSE FUN FOR THE WHOLE FAMILYI CATALOG 6W L L70Fore - SHIPPING -$400 USA CAUF RESIDENTS ADD SALES TAX NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed Aotomatieelly align fuselage structures ate built strings measuring eyeballing Simply slide four centeting brackets track until align firewall tail uint two bulkheads Clamp fuselage together lightly mith rubberbands structure mill thee straight track ucaurnmoduIesmrudusuetufoufS Price 2995 ILI Miter Master Miter Master tool designed enable crafts man make perfect joists mood accurately sanding pre-setangles ThesguaringfencnA allowoforprecisegO angles atd retracts below surface Any angle cay beset triangular guide using adjacent side complement angle mill turmed making invaluable truss construction new cyanoacrylate adhesives require accurately fitted loints achieve full strength Miter Master mill enableyso make easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 Pnce $750 Ausembled bound 503 357-2732 Navy Best Ducted Fans SKYRA Y F4D- Plan FormDesigned Bill Effinger Its f Radio Control SKYNAY NAVY F4D1 Scale Ducted Fan RIO RK-20 Fan Unit ong Plan Set RODF-1 $1995 Prices Complete Plana Sub Assembly Detailed Parts Liats Add $200 Mailing Tube Send Brochure Details new designs & great things come Send $100 refundable information two assembly bolts 6-32 x 2-in Glue upper lower bellcrank mounts peg -in dowel Remember peg goes through center rib tail boom Round off aft end tail boom cut stab slot Motor mount Glue clamp hardwood beams center rib fuselage drying add two vertical spacers dry glue clamp 1/32 outboard ard plywood doublers outboard doubler must high-strength plywood such Sigs inboard doubler can lighter 3-ply type such supplied Balsa USA Sand motor mounts doublers shape drill motor bolt holes 9/64-in tank wire hole 1/16-in dowel holes 5/32-in Install sand dowels smooth Using Dremel tool end mill cutter fit engine mount engine Mix up small batch Hobbypoxy Formula 2 warming heat gun stirring stick until thins out consistency clear dope Spread warm glue over motor mount being sure get bolt holes Apply heat finger-paint smooth final application heat will remove finger prints Hang assembly nose-down dry Control system system designed re use mind Fox 2-in bellcrank provides adequate stability better strength less weight popular 3-in model Cut two -in sections 3/32-in tubing leadout guides slip onto full-length pack Perfect BC leadout cable Cut two 1-in sections 1/16in brass tubing bushings slip onto ends bend horseshoe shape insert bellcrank bind copper wire solder leadouts cut terminated after final assembly airplane one-piece model uses Du-Bro 30-in threaded pushrod Z-bend bellcrank end two-piece version uses same rod cut behind trailing edge short length 3/3 2-in brass tube tapped 2-56 thread bound soldered front end terminated control horn soldered clevis Fox metal control horn used heavy-duty pushrod guide fabricated Vs-in tubing bound soldered piano wire screwed epoxied fuselage failure guide could cause loss control need Tail canopy canopy rudder made Ye balsa covered before installa tion stabilizer /a balsa n spruce spar trailing edge elevator also a 1/32 plywood patch top mount control horn prevent splitting along grain Mark gluing area felt-tip pen cover hinge stab elevator before assembly use either Fascal Mono Kote both covering hinges iron-on hinge method described April 1979 Model Aviation has used complete success models since article published Assembly Glue front vertical spar outboard wing taping masking tape Sand runs motor mount redrill -in mounting bolt holes recheck engine fit Glue outboard wing fuselage center rib youre building two-piece model Use two chains rubberbands hold assembly together drying Some scrap cardboard under bands needed protect foam wing tip drying can install stab 126 Model Aviation LGLOW lireb cdl PLUGS 0 Blow Proof Seal OSix Types 3 Heat Ranges S Longer Life S Flash Starting Only $120 SWANSON Aiwe PO Box 1517948 Wayne NJ 07470 eAmerican made Schnuerle ports eDouble ball bearing sPerry carburetor eForged & domed piston 0 Forged &rod 0-ring sealed back cover lnvestment cast crankcase Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA cA 91107 213 359-0016 795-9821 assembly set up controls rubberbands can removed fit inboard wing onto model may require several tries get proper clearances cut controls motor mount assembly fixture simply two 24-in foam slabs airfoil shapes cut wood plank some waxed paper whatever assorted weights handy Glue inboard wing spars airplane Titebond place model between waxed-paper-covered foam cradles stack plank weights top wing tip should against wall can press against other get good tight joint next day remove model fixture install leadouts pinned balsa inserts wire wickets glued epoxy Hot Stuff baking soda scrap foam now re-inserted one-piece model also needs foam fillers between wings Ask GMP dealer details3U CRAFTSMAN HO TEL 213-992-0195 GMP GORHAA4 MODEL PRODUCTS CALABABAB CA 91305 TVVX 9104945833 February 1982 127 RJL [the ULTIRTE fluing machine K61 Suggested Retail $14800 Muffler Included New Expandable concept R/C Helicopters Competitor will fly 45 50 60 size engines model can take novice flying winning AMA expert class Advanced design features never before seen RIG Helicopter Triple ball bearings main tail rotor hubs5Light weight metal construction Autorotation standard5Low cost parts aControls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Dual ball bearing tail pitch controlSpiral hypoid gears main tail drives WHAM SHOW 82 Dont miss greatest Radio Control Show East Westchester County Center White Plains NY fts 14th annual show its sure biggest best ever Keep fleet last week end Febma19 open 1992 WRAMs Shew going te largest yet Well seer 150 manufacturers ether enhibi tors hare already signed up bring eserything thatneemin hobby . hits engines radios accessories neery thing betweer farrtous Swap Shep will lull operatise thousands ot items including built-up planes almest sew radios engines on en sowething just about eseryone Static Cumpetltlue Make sum latest creation tinished ep ard polished poell hare chance take home et dozens troyhies offered eseef 5 rOSTuuIuso r roC sours rusT s,u r5050 500 50005 0050 ursoso Curs stubS Foss rrLoo 5050 Judging taken ylaoe Suraae utternoon Entries acceyted until 12 soon Sunday Synural udmisuien area will prosided en 501 h days tsr static display sontentanto city Suilt-sp models [ BROWN A-23 CO-2 TINY PEANUT CO-2 ENGINE ENGINE $359S CHARCEN 5995 3/4 COMPLETE CATALOG $100 PHONE 714 469-9975 er 442 4838 Peck-Pelyiners BOX 2498-MA LA MESA CALIF 92041 over fuselage two-piece model needs balsa fillers behind spSrs dry give whole wing light sanding blend parts together remove glue runs Clean wing soft brush vacuum cleaner Apply nylon strap ping tape shown plans essential prevent flexing breaking glue joints may also want add strip tape near leading edge prevent streamers cutting too far foam Add AMA numbers other decorations before covering Covering Very low-heat material needed melting foam Cut four pieces 25 x 12 allow overlapping tips center leading trailing edges Lay piece cover ing over one-quarter wing iron line down spar Work iron away line toward leading trailing edges will keep air bubbles being trapped under covering Cut slits covering laps around tip edges also helps prevent wrinkling remaining three sides same way fuselage one-piece models needs built up foam turtledeck capped balsa strip front strip needs tacked place Hot Stuff remainder clamped place under spruce strip glued hegisfoution 01 models sill start &30 am mooring SWAP SHOP WROMs Soap Shop has some see 51 major show altruc tiers thOusands 01 irdluidual items charging harde help olimirute registration Orssh 1502 group Shop ciii proviSo tsr pro regintratier terms seoniur forms nerd neltuodressed stamp ed enselepe JeOr shinIer 4 sever Rd Luoshmunt NY 10530 SPECIAL NOTE pearthere ciii Seer restriotises rumser St bsiltup coduls registrant nay place Scap Shop ruorrrrrtarrratisr crOOr 00 CurS 5005cr 55 Cneoeicr no cross ruirr 5Y tdWa 19041 mO-5usr cEnecopenEe fuels eEfSMOSSLEe5 50 lebruary 20/21 lOAM to6PM SCL I ScALE DRAWINGSIA PHOTOS BOOKLETS iG jREPLA-T2CH asSINTERNATIONAL 1931 CATALOGS $200 49500 IVtC KENZIE HIFVY ____________ VIDA OREGON 97489 Titebond Fuel-proof joint between covering motor mount warmed Hobbypoxy Cover fuselage plastic film Install pushrod guide rudder canopy fuel tank wires Fuel tank construction Materials 010-in brass shim stock 3/32 -in OD brass tubing Sears 60/40 solder Kester soldering paste flux Weller electric solder ing gun rather torch used wood form shape tank helpful essential Cut out three parts main tank solder front seam add top bottom Sharp edges should filed smooth taking care clean up lead dust Insert two filler tubes pressure-test under water tank airtight drill four holes outboard side two front Install fuel feed air vent tubes Make chicken-hopper out short piece 9/16-in tubing shim stock lid File bottom hopper tight fit tank solder place Note hopper Vs above centerline compensate richening out inverted Pressure-test tank under water again Clean tank hot water baking soda install Dragon foam rubber pad 128 Model Aviation N underneath rubber tubing over tank wires protection fuel filter may need frequent cleaning first new tank Engines Fox Combat Special Mark III has standard engine Dragon Future models will feature Mark IV have yet opportunity test Supertigre G2 have used some loss speed 05 36 has used some success local contests OS equals Fox speed adds too much weight good maneuverability opinion Fox consistently pulls Dragon 92 94 mph 15% nitro exceptional engine able break 100 several times 30% get under 90 something wearing out modifications replace rear bearing Hoover-NSK R8 78 use Supertigre needle valve assembly venturi insert wrapped polyethelene plastic form air seal head clearance set 015 018 essential good performance Break-in via bench running 9-6 prop cut 8 Lapping required certain very tight replacement pistons sleeves like Fox becasue runs right Out box doesnt take time away important things like fuel tanks Flying completed airplane should weigh 265 ounces balance 25% chord slightly outboard thrust line sidemounted engine leadout position offset wing provide line tension necessary recommend tip weight engine out-thrust rudder offset Make initial test flight engine set rich side until become familiar needling engine chicken hopper tank Foamies can become warped covering assembly check out use iron trim tabs correct warp plane feels too sluggish go aft CG control Ive never come Out tail-heavy yet Top Flite 9-5s 9-6s cut 8-6 work well have four Dragons tested trimmed out should ready contest CL Aerobatics Paul Continued page 62 Bill Lindemann Metuchen NJ wrote question come results WinstonSalem CL Championships showed Novice Beginner scores 454 442 431 Well thats good question does show voluntary placing usually allow contestants seed themselves category choice doesnt always work out numbers However lets also remember what 454 region may another because ofjudging differences abilities competitors etc scores shown Advanced Expert categories results contest sent writer however can surmise Experts probably scored 520 over Advanced falling somewhere between 450 500 What says PAMPA categories dont always work right down line since contest management still refuses have four cate gories Winston-Salem meet will necessarily some place scores will off usual scale place Richard Byrons records pilots scores would come handy contest management reference guide Perhaps could have copies pilots rankings sent major NOT JUST ANOTHER CATALOG novice tips experts expert thousands products specifica tions photos help decide make hobby enjoyable everybody interested RI Its standard reference book Will Ever Need Available through local hobby shop use coupon Yes send copy new RADIO CONTROL BUYERS GUIDE D Enclosed $950 $795 plus $1 55 postage us & canada dians Send us funds VA residents add 4% sales tax D charge D Mastercharge D visa charge No________________________ Exp Date _________________ Name Street city State Zip Return Boynton & Associates Inc clifton House clifton virginia 22024 mE i ion special MK III 84 Mono 78 5pn Weight 18 lbs2195 Travel Ai 2000 105 Classc Scale 5plann 23 lbs2295 Travel Ai 4000 99 9adal ing Classic Spe 23 lbs2295 Fokker 0-VII 88 Gernan WW Fglsn Spe 23 lbs2495 Ceeing Scan Sopsnth Pcp 80 Spn Sopacth Tnpnbocnd 80 Tnplane Waco ATO Lyjack Vesoc 90 8placn Nncpo-t 11 Sebe 85 Splanc 3 5 Scale Fockec 081 72 Tcplace Plans shipped U PS Parcel Post Please add $300 torpostaqe liandlino fastest service send postal inoney order No C 00 orders sent BEHRENS PLAN SERVICE 31-27 Healy Ave Far Rockaway NY 11691 in212 337-6987 February 1 982 1 29 Quick Silver $1197 er Bearing Inol Post ste lingSyringe Dispenser Field Repairs No Waste 22000 psi tensile strength Low melting point open flame lighter soldering iron Will Join 14 different combinations metals Wont Blacken Tarnish Seining South THS Hobby Distributors PO Box 914 Rosewell GA 30077
Edition: Model Aviation - 1982/02
Page Numbers: 58, 59, 60, 61, 125, 126, 127, 128, 129
SLOW COMBAT popular control line event parts country Despite its strong following has almost com plete absence kits published plans probably result continuous series rules changes have eliminated coin petitive designs two years 1977 inboard tanks very short noses prevailed 7 8-79 rules stretched noses 5 deregulating tank location delet ing landing gears 1980-81 book outlawed forms inboard tanks Fortunately no changes 1982-83 will disallow equipment Considering rules instability its easy see no has time produce kit magazine article positive effect has interesting variety equipment contest Fuel tanks main factor sets Slow Combat apart other events require ment suction fuel system Fast FAI Combat contestant simply opens up venturi wide possible hooks up pressure tank fuel tank venturi size key factors make contestant competitive another Slow Combat jobs faster tighter-turning other models run suction Sport Stunt setups work event Prior 1978 went through series con ventional uniflow clunk tanks really satisfactory equal compe tition June 1978 issue Model Aviation contained article Don Jehlik chicken hopper tanks completely changed life least respect Slow Combat built chicken hopper soldered onto Perfect square tank first test flight perfectly smooth steady run start finish havent used other form suction tank since principle engine draws fuel tiny hopper thus unaffected sloshing G-forces decreasing volume main tank Longer faster smoother runs result no rich-at-the-start/lean-atthe-end runs no saging enter tight maneuver chicken-hopper tank vital success Dragon too fast tight-turning work conventional tank Airframe design Combat contests won RUBRER TUBING STRAPPING TERE FRONT SPON ITTI TANK FRONT VII SOLID HOLLOW RORFECT UROMMET I/GNALSA INSERT PERFECT H DO L LOW SLUG 5 BALSA INSERT FOAM CUT 0 332 BRASS TONINGSECTrON A-AOWED ROCK WIRE WICKETS EPOGIED IN PLACE INSERT TEMPLATE 2 BEER RIB 0 REOD -VA PLY I2 I2 I-V4 B A-AG BLIND NOTS V2 F TIP TEMPLATE IB PLF NOTCH CSRE TEMPLATES OSE FIROT P OR PLY 714ROOT TEMPLATE ALAWYS KEEP TIE ISAME SIRE OP I4 VA beating series four six opponents Quality airplanes needed win match quantity models needed win contest 1976 World Championships saw British solution challenge foam Super star models featured balsa hardwood center sections foam wings crashes 4 like thought really tearing up competition heres fine weapon Slow Combat Dragon has proven itself well battle Since usually need whole fleet models perhaps better word platoon competitions author describes series imaginative mass-production techniques Smith 58 Model Aviation ar JOhnsOfltOOK ipic55 101I.levulano uauuflguxc Finals 1980 Nationals uragon nas Impressive contest record FULL-SIZE PLANSAVAILABLE SEE PAGE 140 IR PLY ENIDRE MEER2TS VIE P53/JO 53/RE 1222 MEUSTS I/BEI-VBs 10-02 PLYWOLO IIH HOLW# 6 SPRUCE SPAR CAREES2 BELLCRAMn- - RAPPENG TAPE D5IBRO 30 TPREAOED PUSHROD 1/16 BRASS TUBING RING LEADOUTREUCRANI LEADOUT DETAIL 08 BALSA CANOPY LS SIDE VIEW ONWA SPE AL NO BSAOU PPE GH HANRE OP WING TIP CUTTER 3/As 2/2 P82 OR SPRUCE -NICI-WSRE WIRE Iii ill________ ROLLOW /A STRASPENG TAPE JI HALLOW Li LOWER CONTROL MOUNT 2I I/B PLY UPPER COESTROL MCERJT -3/An I/O I/B TOP VIEW UTRAPPNS TAPE TOP BOTTOM HALLOW ROLlS IS TA6 DRAOoN DESIGN ED 8 DRAWN BY PAUL SMITHTO TR22ASFURMER TRACING BY JOE DEMARCOTPANS WIPECCL URUNG BRUCEI/A I-I/O PLY I/As 02 BALSA CAPUTRIP 10 FOAM TURCOE CECICI/B BALSA 01 INSTALL AFTER WINS ISV COVERED I/RV2s2-3R PLYII/SS 3/A WOOD {NICRROME FOS COUTROL HORNSAEK ASEONNECT OURRO CLEVOI/S SCSLE VAEI/O33/AFOAM CUTTEIiI BALSA FELERFULL UCRLE ~FOAM FILLER5R BALSA DDER1/03/A PINE I/A BALSAFIRRING LEFT WING B LEADOETS REMOVESTRIP SPRACE-zz---~-3/A ALSA MARE PEWS EXTRA LEEB TREN TREE AFTER FUSE El/SO PLYTOP ORLYsB BEEN FF1150 TA EEBTER WE BEETS BNUTS3/32 ERASE TUBE TAP 2-SB TEBEAB POWLARE I25 BELSABAR B SOLEER RE EBEEST FLRARUE SOREW B AFT FURWEB BI VBELVSFROEV S/BEllS SF5588 OPTIONAL DETACHABLE TAIL foam wings frequently destroyed wood structure generally survived New foam cores installed later model service again very low cost important models flew better competition Since have built foam wings almost exclusively 1977 Dragons won Dekalb Aero-Challenge MACA #1 Slow also took 5th Nats 1979 1980 Dragons featured detach able tail sections ease transportation repair feature has entirely successful have seldom really needed dis assemble models 1981 fleet will feature permanent tails plans instruc tions cover both options two extremes Combat design eggshell3 battering ram Dragon neither An eggshell airplane extremely light big fragile airplane can Out turn competition will tolerate contact kind battering ram will fly through anything another its kind can sometimes vertical eight Dragon best effort striking compromise between two Materials lumberyard get slab PIVOT PONT A EXACTLY UBOVE URFATE UF TIP cUTTER ____7 3/A STRAPPENG TAPE/ CONTINUOUS WRAP OVER SPARS B AROUND WIND TIPS OVERLAP 0 ON BOTTOM FOAM TIP AL/OAR TIP CUTTING FIXTURE FOP VIEWAER AENT 3/3200 T1 IITB P1LEER ARMSOEEEEEE PEPPER LS AR BRASS- P/IS AD BRASS5 5P FLISETA0VUTBOPES0 3/32/WA111 22 AELES VIEWBEt UIE BR A55 5PM STREP 3/32. I/BS 9/IS PA TUBE BROWS B PEASR NPPER FUEL TANK Heres authors fleet pack herd Dragons set upforthe Canadian Combat ruleawith amrtnrcnr cot wkoola IndavaorvIoao So annA far manS na alone Ion Sn nroain insulating foam 2 x 8 ft 2 wide Density normally 1 lb per cubic foot Genuine Dow Styrofoam light blue stuff about twice density makes planes last fly like furniture Pick up 8-ft length urring strip dont have some scrap wood around house will also need 6 x 1 ft piece plywood particle board foamcutting fixtures either fuselage type youll need 4 hardwood motor mounts plywood 5/32 dowels x 3 balsa 36-in spruce / x qd erfect leadout wires Fox 2-in bellcrank control horn 1/16-in 3/32-in -in brass tubing Dubro 30-in threaded pushrod clevis 4-40 x l-in bolts blind nuts detachable tail also requires 1 x balsa /16 x ce 6-32 x 2-in bolts blind nuts solder-type clevis Titebond used joints use Hot Stuff wood-to-wood Hobbypoxy Formula 2 fuel-proofing motor mount high-stress areas Use low-temperature covering such Solarfilm GBC laminating film foam wings High-temp material such MonoKote Fascal good fuselage tail canopy models require no paint Nylonreinforced strapping tape such 3M used prevent flexing wing Foam-cutting equipment important piece equipment power source have used battery charger past now have American Flyer train transformer cutting bow fully explained plan wing tip cutter As shown photograph drop-wire fixture vertical plank series eyelet guides exactly 1 surface An eighth-inch piano wire held large paper clip being heated An alumi num heat shield protects plank torch Vertical alignment essential evening spent equipment will pay handsome divi dends time saved future models Cut airfoil core templates plywood Use 5/64-in nails align templates foam Mark foam carpenters square felt-tip pen model requires four foam blanks follows 18 x 10 60 Model Aviation Wingtip ieadoutswhich arecutand terminated aftereievatortravel adjusted Doing operation last results lengths Foam-and-balsa turtledeck glued clamped place after wing covered Spruce strip protects balsa clamps chicken hopper tank under construction Large tube hopper small fuel feed Completed tank R has vent plugged leak test Controls Dragon bushed Fox belicrank pushrod guide re inforced elevator one-piece Du-Bro threaded pushrod Fox metal horn Installation pushrod guide must taken seriously Sloppy work point can ruin planes chances competition Heating tip wire drop-wire fixture preparation boring lateral hole wing blank See text CUTTING WIRE FOAM BLOCK WIREHOLESHANDLE SUPPORT BLOCK END STOP 3---BASE RIB TEMPLATE ASSORTED WEIGHTS WALL OR/ COLUMNWOOD PLANK 2xIOx APA NiFIW ci IADELCOFOAM ASSEMBLY r I II II II / URES ITABLE FOAM WING ASSEMBLY METHOD rAPPLY PRESSURE HERE TO SQUEEZE WING HALVES TOGETHER /1 WING TIP CUTTING FIXTURE MACA Nets Smiths campaigned Dragons detachable tails No problems encountered wIth system two years flyIng 17 x 10 two 5 x 10 can get four models 8-ft slab plan building foamies make big mitre box cut blanks have someone hold straightedge vertically against side cut blanks Take blanks drop-wire fixture well-ventilated area Clamp fixture true vertical position using level core tem plate align blank under wire Keep fire Continued page 125 February 1982 61 can take eyes off lovely Moire Smith look drop-wire fixture rack completed Dragons background 1981 model Dragon like 1981 VW best changes internal Pinstriping tape along leading edge helps protect against dings cuts caused eating other peoples streamers secret Paul Smiths mass-produced Dragonsquality control inspections Ink lines indicate gluing area stab left bare Moire Smith checks five-in nose alignment gauge FOAM ASSEMBLY FIXTURE plus $3 postage Simplex 143 Richmond Street El Segundo CA 90245 Crocket/FAI winder converted purchaser English hand drill die cast nylon case completely encloses metal gears Thrust load carried special ball thrust race crank supplied rather short can easily replaced longer made bar stock winding knob appears too small might want replace drill chuck furnished discarded replaced wire hook Parts instructions conver sion included Price $2400 plus $285 freight Crocket P0 Box 12600 Fresno CA 93778 $2950 plus $295 freight FAI Model Supply P0 Box 3957 Torrance CA 90510 Bob Meuser 4200 Gregory St Oakland CA 94619 Dragon/Smith Continued page 61 extinguisher water bucket handy Heat point wire red hot Set torch down release paper clip wire should pierce straight hole through blank can make hole larger smaller varying temper ature wire Excessive heat can cause oversize hole too little heat can result wire wandering off center may well pierce four sets youre pierce 5-in tip blanks Next comes hot-wire cutting Clear off large enough area cores lay flat bench blank templates held square bench templates square leading edge nail templates foam Always keep same side up avoid creating warp templates arent quite symmetrical Adjust transformer give good clean cut dragging wire making too wide cut Practice some scrap After cutting spar notches disconnect wire thread through pierced hole Cut void disconnect wire again pull Out wire scrap Use same nail holes align airfoil templates Airfoils cut four separate passes starting always spar notch now have fixture front spar slot earlier models front spar slot cut manually-held straightedges Tips cut airfoil template tip-cutting fixture Cut top first bottom removing top scrap sure position both template center line pivot point exactly 1 above base Glue outboard wing tips outboard wings time Position insert wing tip templates inboard tip cut out insert Glue leadout mount tip glue tip inboard wing Sand cut Y8 off top scrap save install later Use Titebond glue joints should also make two 24-in assembly fixtures time Use airfoil templates cut two cradles foam make clear ance notches engine mount tail required one-picce fuselage cut furring strip length glue pine spruce spacers bring front end up dimension 125 dry file spar notches two-piece fuselage file bellcrank-mount notches inapiece in balsa glue x -in spruce both top bottom dry cut center rib tail boom Sand center rib match airfoil sand tail boom fit rib Using center rib alignment glue 3/16 capstrips tail boom dry sand off excess glue drill Introducing New H S Hornet 42 CID 6 1/3 HP Only 6 1/4 lbs New AMA 1 982-83 Rules 44 Limit -- Make 42 CID Legal 5 1/2 center top cylinder head 3 1/2 center side carb Perfect 1/4 scale P-51 1/3 Pitts Very smooth running Like Quadra Optional twin-stack nrclfln Smoke cnsjoitntnlahlo Sit oh 5 en o sea lab Saabln-ing pioton Icr higher cotnpnssion s tile Optional choho Enan hand stoning Spocial clone- coopind heh-tnnoitn oentnm lot moo AF adjatior Solid- know teen macnt op tional radial soppottsatas[ Rotter Ibroot- hearing noolosionly tnan model ainonft Youll Love Partner An updated version popular engine Note improve ments made especially mini ature aircraft use roller thrust bearing double-ring piston soark olug location low 13 1/21 S more power output LIMITED TIME OFFER LIST $14995 SALE $9995 seal knits qinnar Fnwsr-bnlnncnd IihO-wnightwink starlnr toed geanes finebentReact-date prop bob MORE HORNER SPECIAL PART RETAIL SALE 772$24955$75900 77927200$77555 7777250059995 7087250059995 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 79 ROPER ENGINE NEW Sale Last) 79 ENGINE NUB 8 MOUNT PACK 79 USEO DEMO ENGINE BALENCED 6BOLT HUB Repay Patnar N Ouad4 PROP ORILL JIG 709 779 770 7077495 702$7795 So compact measures much larger Quadra Partner engine Comes complete built choke 6 bolt prop hub Radial mount available twin stack INTRO $19995 SALE 1255 7200 2455 7555 500 7595 755 2 75 Write yr CALL Seed 20c Stamp CatalogWill Ship Orders Same Day cODUPSAdd 54 shipping per engine HOR N ER SALES INC Rt 2 Box 9 300 Dixie Hwy. 312 946-2515 Beecher IL 60401 PEANUT-PEOPLE PRESENT PEANUT SCALE MODELS MuSTANG MILES M-18ZERO DRuINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY M-lO Rubber Powered Balsa Tissue Kite $595 SPORT MODELS PRAIRIE BIRD 4 KIT $595 BABY ACE$649 ONE NITE 20$095 ONE NITE tO$595 STRINGLESS WONDER$495 PECK ROG$195 RUBBER OR 00-2 POWERED BUILDING NEEDS V PROPS TISSUE RUBBER WINDERS BLADE SHARPENERS BEARINGS PROP SHAFTS LUBE WASHERS WHEELS FUSE CO2 MOTORS BOOKS PLANS MORE ADVENTURE MODELS IPONY BLIMP ttFTRICAIRSHIP -KIT $24900 COMPLETE CATALOG $100 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS PeckPeIymers SILK 5/YL $445/rD RedYelIow Royul Blue Fine Quality Model Building Any Length Max 5OYd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SIIIPPINGt ADO 50 FOREIGN 150/ORDER NY RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROADn NEW CITY NY 914- 634-850010956 P 0 BOX 2498-MA LA MESA CALIF 92041 PHONE 714 469-8075 714 442-4630 February 1 982 1 25 List $28995 Enginenub Shown wan option al mount & choke SALE $17995 RAOIAL MOUNTRapar 378 79 703 RAOIAL MOUNT Partner 723 TWIN STACK EXHAUST 37 8 Kiarita 705 TWIN STACK EXHAUST Partner Oaadra 720 CHOKE ASSEMBLY Parmer 5 Ooaadraj 727 9500 3955 BRITE SPINNER Repec Part N Quad 722 6500NEOPRENE GAS LINE Per Feet707 2500 RESISTOR SPARK PLUG RCJ-6 773 BIG PROPS VAILABLEI Finished Balanced Weed Aviation Jewelry Custom Made Reproduce Plating Gold Rhodium Bright Nickel White Metal Molding Largest Aircraft Jewelry Selection World Also flight School wings mylar decals jacket patches novelties Plus Fine Hard-Fired Enamel er Special priCRO Re volume orders Call write today Simi-Air214 596-3505 19107 Creeks Dr. Dallas TX 75252 r CakQie R/C 0 VAN NUYS CA 91408 SPORT CARS PO BOX R/C GOODIES 3 II PORSCHEPORSCHE 917K BMW-MI IU U Iw 111/21nIg15-3/4inCHARGER15-3/4inI $6495Reg $7995$995Reg $8295 InI $4295SPEC$5295.-CH TXSPEC$5495 flu CHARLIES NEW 1/12SCALE R/C CARS COMEASSEMBLEDREADY TO RUN COMPLETE WITH 2-CM TRANSMITTER AND WITH RECEIVER AND SERVOS IN LED 27 MHZ ONLY BATTERIES NOT INCLUDED DECALS ARE FURNISHED CARS FEATURE FULLY PROPORTIONAL STEERING WITH AUTOMATIC NEUTRAL PLUS VARIABLE SPEED CONTROL BOTH FORWARD AND REVERSE PORSCHE 935 AND BMW-Mi ALSO HAVE OPERATING R/L TURN SIGNALS PLUS STOP LIGHTS LOW POWER TRANSMITTER BELOW 100 MW REQUIRES NO LICENSE FUN FOR THE WHOLE FAMILYI CATALOG 6W L L70Fore - SHIPPING -$400 USA CAUF RESIDENTS ADD SALES TAX NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed Aotomatieelly align fuselage structures ate built strings measuring eyeballing Simply slide four centeting brackets track until align firewall tail uint two bulkheads Clamp fuselage together lightly mith rubberbands structure mill thee straight track ucaurnmoduIesmrudusuetufoufS Price 2995 ILI Miter Master Miter Master tool designed enable crafts man make perfect joists mood accurately sanding pre-setangles ThesguaringfencnA allowoforprecisegO angles atd retracts below surface Any angle cay beset triangular guide using adjacent side complement angle mill turmed making invaluable truss construction new cyanoacrylate adhesives require accurately fitted loints achieve full strength Miter Master mill enableyso make easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 Pnce $750 Ausembled bound 503 357-2732 Navy Best Ducted Fans SKYRA Y F4D- Plan FormDesigned Bill Effinger Its f Radio Control SKYNAY NAVY F4D1 Scale Ducted Fan RIO RK-20 Fan Unit ong Plan Set RODF-1 $1995 Prices Complete Plana Sub Assembly Detailed Parts Liats Add $200 Mailing Tube Send Brochure Details new designs & great things come Send $100 refundable information two assembly bolts 6-32 x 2-in Glue upper lower bellcrank mounts peg -in dowel Remember peg goes through center rib tail boom Round off aft end tail boom cut stab slot Motor mount Glue clamp hardwood beams center rib fuselage drying add two vertical spacers dry glue clamp 1/32 outboard ard plywood doublers outboard doubler must high-strength plywood such Sigs inboard doubler can lighter 3-ply type such supplied Balsa USA Sand motor mounts doublers shape drill motor bolt holes 9/64-in tank wire hole 1/16-in dowel holes 5/32-in Install sand dowels smooth Using Dremel tool end mill cutter fit engine mount engine Mix up small batch Hobbypoxy Formula 2 warming heat gun stirring stick until thins out consistency clear dope Spread warm glue over motor mount being sure get bolt holes Apply heat finger-paint smooth final application heat will remove finger prints Hang assembly nose-down dry Control system system designed re use mind Fox 2-in bellcrank provides adequate stability better strength less weight popular 3-in model Cut two -in sections 3/32-in tubing leadout guides slip onto full-length pack Perfect BC leadout cable Cut two 1-in sections 1/16in brass tubing bushings slip onto ends bend horseshoe shape insert bellcrank bind copper wire solder leadouts cut terminated after final assembly airplane one-piece model uses Du-Bro 30-in threaded pushrod Z-bend bellcrank end two-piece version uses same rod cut behind trailing edge short length 3/3 2-in brass tube tapped 2-56 thread bound soldered front end terminated control horn soldered clevis Fox metal control horn used heavy-duty pushrod guide fabricated Vs-in tubing bound soldered piano wire screwed epoxied fuselage failure guide could cause loss control need Tail canopy canopy rudder made Ye balsa covered before installa tion stabilizer /a balsa n spruce spar trailing edge elevator also a 1/32 plywood patch top mount control horn prevent splitting along grain Mark gluing area felt-tip pen cover hinge stab elevator before assembly use either Fascal Mono Kote both covering hinges iron-on hinge method described April 1979 Model Aviation has used complete success models since article published Assembly Glue front vertical spar outboard wing taping masking tape Sand runs motor mount redrill -in mounting bolt holes recheck engine fit Glue outboard wing fuselage center rib youre building two-piece model Use two chains rubberbands hold assembly together drying Some scrap cardboard under bands needed protect foam wing tip drying can install stab 126 Model Aviation LGLOW lireb cdl PLUGS 0 Blow Proof Seal OSix Types 3 Heat Ranges S Longer Life S Flash Starting Only $120 SWANSON Aiwe PO Box 1517948 Wayne NJ 07470 eAmerican made Schnuerle ports eDouble ball bearing sPerry carburetor eForged & domed piston 0 Forged &rod 0-ring sealed back cover lnvestment cast crankcase Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA cA 91107 213 359-0016 795-9821 assembly set up controls rubberbands can removed fit inboard wing onto model may require several tries get proper clearances cut controls motor mount assembly fixture simply two 24-in foam slabs airfoil shapes cut wood plank some waxed paper whatever assorted weights handy Glue inboard wing spars airplane Titebond place model between waxed-paper-covered foam cradles stack plank weights top wing tip should against wall can press against other get good tight joint next day remove model fixture install leadouts pinned balsa inserts wire wickets glued epoxy Hot Stuff baking soda scrap foam now re-inserted one-piece model also needs foam fillers between wings Ask GMP dealer details3U CRAFTSMAN HO TEL 213-992-0195 GMP GORHAA4 MODEL PRODUCTS CALABABAB CA 91305 TVVX 9104945833 February 1982 127 RJL [the ULTIRTE fluing machine K61 Suggested Retail $14800 Muffler Included New Expandable concept R/C Helicopters Competitor will fly 45 50 60 size engines model can take novice flying winning AMA expert class Advanced design features never before seen RIG Helicopter Triple ball bearings main tail rotor hubs5Light weight metal construction Autorotation standard5Low cost parts aControls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Dual ball bearing tail pitch controlSpiral hypoid gears main tail drives WHAM SHOW 82 Dont miss greatest Radio Control Show East Westchester County Center White Plains NY fts 14th annual show its sure biggest best ever Keep fleet last week end Febma19 open 1992 WRAMs Shew going te largest yet Well seer 150 manufacturers ether enhibi tors hare already signed up bring eserything thatneemin hobby . hits engines radios accessories neery thing betweer farrtous Swap Shep will lull operatise thousands ot items including built-up planes almest sew radios engines on en sowething just about eseryone Static Cumpetltlue Make sum latest creation tinished ep ard polished poell hare chance take home et dozens troyhies offered eseef 5 rOSTuuIuso r roC sours rusT s,u r5050 500 50005 0050 ursoso Curs stubS Foss rrLoo 5050 Judging taken ylaoe Suraae utternoon Entries acceyted until 12 soon Sunday Synural udmisuien area will prosided en 501 h days tsr static display sontentanto city Suilt-sp models [ BROWN A-23 CO-2 TINY PEANUT CO-2 ENGINE ENGINE $359S CHARCEN 5995 3/4 COMPLETE CATALOG $100 PHONE 714 469-9975 er 442 4838 Peck-Pelyiners BOX 2498-MA LA MESA CALIF 92041 over fuselage two-piece model needs balsa fillers behind spSrs dry give whole wing light sanding blend parts together remove glue runs Clean wing soft brush vacuum cleaner Apply nylon strap ping tape shown plans essential prevent flexing breaking glue joints may also want add strip tape near leading edge prevent streamers cutting too far foam Add AMA numbers other decorations before covering Covering Very low-heat material needed melting foam Cut four pieces 25 x 12 allow overlapping tips center leading trailing edges Lay piece cover ing over one-quarter wing iron line down spar Work iron away line toward leading trailing edges will keep air bubbles being trapped under covering Cut slits covering laps around tip edges also helps prevent wrinkling remaining three sides same way fuselage one-piece models needs built up foam turtledeck capped balsa strip front strip needs tacked place Hot Stuff remainder clamped place under spruce strip glued hegisfoution 01 models sill start &30 am mooring SWAP SHOP WROMs Soap Shop has some see 51 major show altruc tiers thOusands 01 irdluidual items charging harde help olimirute registration Orssh 1502 group Shop ciii proviSo tsr pro regintratier terms seoniur forms nerd neltuodressed stamp ed enselepe JeOr shinIer 4 sever Rd Luoshmunt NY 10530 SPECIAL NOTE pearthere ciii Seer restriotises rumser St bsiltup coduls registrant nay place Scap Shop ruorrrrrtarrratisr crOOr 00 CurS 5005cr 55 Cneoeicr no cross ruirr 5Y tdWa 19041 mO-5usr cEnecopenEe fuels eEfSMOSSLEe5 50 lebruary 20/21 lOAM to6PM SCL I ScALE DRAWINGSIA PHOTOS BOOKLETS iG jREPLA-T2CH asSINTERNATIONAL 1931 CATALOGS $200 49500 IVtC KENZIE HIFVY ____________ VIDA OREGON 97489 Titebond Fuel-proof joint between covering motor mount warmed Hobbypoxy Cover fuselage plastic film Install pushrod guide rudder canopy fuel tank wires Fuel tank construction Materials 010-in brass shim stock 3/32 -in OD brass tubing Sears 60/40 solder Kester soldering paste flux Weller electric solder ing gun rather torch used wood form shape tank helpful essential Cut out three parts main tank solder front seam add top bottom Sharp edges should filed smooth taking care clean up lead dust Insert two filler tubes pressure-test under water tank airtight drill four holes outboard side two front Install fuel feed air vent tubes Make chicken-hopper out short piece 9/16-in tubing shim stock lid File bottom hopper tight fit tank solder place Note hopper Vs above centerline compensate richening out inverted Pressure-test tank under water again Clean tank hot water baking soda install Dragon foam rubber pad 128 Model Aviation N underneath rubber tubing over tank wires protection fuel filter may need frequent cleaning first new tank Engines Fox Combat Special Mark III has standard engine Dragon Future models will feature Mark IV have yet opportunity test Supertigre G2 have used some loss speed 05 36 has used some success local contests OS equals Fox speed adds too much weight good maneuverability opinion Fox consistently pulls Dragon 92 94 mph 15% nitro exceptional engine able break 100 several times 30% get under 90 something wearing out modifications replace rear bearing Hoover-NSK R8 78 use Supertigre needle valve assembly venturi insert wrapped polyethelene plastic form air seal head clearance set 015 018 essential good performance Break-in via bench running 9-6 prop cut 8 Lapping required certain very tight replacement pistons sleeves like Fox becasue runs right Out box doesnt take time away important things like fuel tanks Flying completed airplane should weigh 265 ounces balance 25% chord slightly outboard thrust line sidemounted engine leadout position offset wing provide line tension necessary recommend tip weight engine out-thrust rudder offset Make initial test flight engine set rich side until become familiar needling engine chicken hopper tank Foamies can become warped covering assembly check out use iron trim tabs correct warp plane feels too sluggish go aft CG control Ive never come Out tail-heavy yet Top Flite 9-5s 9-6s cut 8-6 work well have four Dragons tested trimmed out should ready contest CL Aerobatics Paul Continued page 62 Bill Lindemann Metuchen NJ wrote question come results WinstonSalem CL Championships showed Novice Beginner scores 454 442 431 Well thats good question does show voluntary placing usually allow contestants seed themselves category choice doesnt always work out numbers However lets also remember what 454 region may another because ofjudging differences abilities competitors etc scores shown Advanced Expert categories results contest sent writer however can surmise Experts probably scored 520 over Advanced falling somewhere between 450 500 What says PAMPA categories dont always work right down line since contest management still refuses have four cate gories Winston-Salem meet will necessarily some place scores will off usual scale place Richard Byrons records pilots scores would come handy contest management reference guide Perhaps could have copies pilots rankings sent major NOT JUST ANOTHER CATALOG novice tips experts expert thousands products specifica tions photos help decide make hobby enjoyable everybody interested RI Its standard reference book Will Ever Need Available through local hobby shop use coupon Yes send copy new RADIO CONTROL BUYERS GUIDE D Enclosed $950 $795 plus $1 55 postage us & canada dians Send us funds VA residents add 4% sales tax D charge D Mastercharge D visa charge No________________________ Exp Date _________________ Name Street city State Zip Return Boynton & Associates Inc clifton House clifton virginia 22024 mE i ion special MK III 84 Mono 78 5pn Weight 18 lbs2195 Travel Ai 2000 105 Classc Scale 5plann 23 lbs2295 Travel Ai 4000 99 9adal ing Classic Spe 23 lbs2295 Fokker 0-VII 88 Gernan WW Fglsn Spe 23 lbs2495 Ceeing Scan Sopsnth Pcp 80 Spn Sopacth Tnpnbocnd 80 Tnplane Waco ATO Lyjack Vesoc 90 8placn Nncpo-t 11 Sebe 85 Splanc 3 5 Scale Fockec 081 72 Tcplace Plans shipped U PS Parcel Post Please add $300 torpostaqe liandlino fastest service send postal inoney order No C 00 orders sent BEHRENS PLAN SERVICE 31-27 Healy Ave Far Rockaway NY 11691 in212 337-6987 February 1 982 1 29 Quick Silver $1197 er Bearing Inol Post ste lingSyringe Dispenser Field Repairs No Waste 22000 psi tensile strength Low melting point open flame lighter soldering iron Will Join 14 different combinations metals Wont Blacken Tarnish Seining South THS Hobby Distributors PO Box 914 Rosewell GA 30077
Edition: Model Aviation - 1982/02
Page Numbers: 58, 59, 60, 61, 125, 126, 127, 128, 129
SLOW COMBAT popular control line event parts country Despite its strong following has almost com plete absence kits published plans probably result continuous series rules changes have eliminated coin petitive designs two years 1977 inboard tanks very short noses prevailed 7 8-79 rules stretched noses 5 deregulating tank location delet ing landing gears 1980-81 book outlawed forms inboard tanks Fortunately no changes 1982-83 will disallow equipment Considering rules instability its easy see no has time produce kit magazine article positive effect has interesting variety equipment contest Fuel tanks main factor sets Slow Combat apart other events require ment suction fuel system Fast FAI Combat contestant simply opens up venturi wide possible hooks up pressure tank fuel tank venturi size key factors make contestant competitive another Slow Combat jobs faster tighter-turning other models run suction Sport Stunt setups work event Prior 1978 went through series con ventional uniflow clunk tanks really satisfactory equal compe tition June 1978 issue Model Aviation contained article Don Jehlik chicken hopper tanks completely changed life least respect Slow Combat built chicken hopper soldered onto Perfect square tank first test flight perfectly smooth steady run start finish havent used other form suction tank since principle engine draws fuel tiny hopper thus unaffected sloshing G-forces decreasing volume main tank Longer faster smoother runs result no rich-at-the-start/lean-atthe-end runs no saging enter tight maneuver chicken-hopper tank vital success Dragon too fast tight-turning work conventional tank Airframe design Combat contests won RUBRER TUBING STRAPPING TERE FRONT SPON ITTI TANK FRONT VII SOLID HOLLOW RORFECT UROMMET I/GNALSA INSERT PERFECT H DO L LOW SLUG 5 BALSA INSERT FOAM CUT 0 332 BRASS TONINGSECTrON A-AOWED ROCK WIRE WICKETS EPOGIED IN PLACE INSERT TEMPLATE 2 BEER RIB 0 REOD -VA PLY I2 I2 I-V4 B A-AG BLIND NOTS V2 F TIP TEMPLATE IB PLF NOTCH CSRE TEMPLATES OSE FIROT P OR PLY 714ROOT TEMPLATE ALAWYS KEEP TIE ISAME SIRE OP I4 VA beating series four six opponents Quality airplanes needed win match quantity models needed win contest 1976 World Championships saw British solution challenge foam Super star models featured balsa hardwood center sections foam wings crashes 4 like thought really tearing up competition heres fine weapon Slow Combat Dragon has proven itself well battle Since usually need whole fleet models perhaps better word platoon competitions author describes series imaginative mass-production techniques Smith 58 Model Aviation ar JOhnsOfltOOK ipic55 101I.levulano uauuflguxc Finals 1980 Nationals uragon nas Impressive contest record FULL-SIZE PLANSAVAILABLE SEE PAGE 140 IR PLY ENIDRE MEER2TS VIE P53/JO 53/RE 1222 MEUSTS I/BEI-VBs 10-02 PLYWOLO IIH HOLW# 6 SPRUCE SPAR CAREES2 BELLCRAMn- - RAPPENG TAPE D5IBRO 30 TPREAOED PUSHROD 1/16 BRASS TUBING RING LEADOUTREUCRANI LEADOUT DETAIL 08 BALSA CANOPY LS SIDE VIEW ONWA SPE AL NO BSAOU PPE GH HANRE OP WING TIP CUTTER 3/As 2/2 P82 OR SPRUCE -NICI-WSRE WIRE Iii ill________ ROLLOW /A STRASPENG TAPE JI HALLOW Li LOWER CONTROL MOUNT 2I I/B PLY UPPER COESTROL MCERJT -3/An I/O I/B TOP VIEW UTRAPPNS TAPE TOP BOTTOM HALLOW ROLlS IS TA6 DRAOoN DESIGN ED 8 DRAWN BY PAUL SMITHTO TR22ASFURMER TRACING BY JOE DEMARCOTPANS WIPECCL URUNG BRUCEI/A I-I/O PLY I/As 02 BALSA CAPUTRIP 10 FOAM TURCOE CECICI/B BALSA 01 INSTALL AFTER WINS ISV COVERED I/RV2s2-3R PLYII/SS 3/A WOOD {NICRROME FOS COUTROL HORNSAEK ASEONNECT OURRO CLEVOI/S SCSLE VAEI/O33/AFOAM CUTTEIiI BALSA FELERFULL UCRLE ~FOAM FILLER5R BALSA DDER1/03/A PINE I/A BALSAFIRRING LEFT WING B LEADOETS REMOVESTRIP SPRACE-zz---~-3/A ALSA MARE PEWS EXTRA LEEB TREN TREE AFTER FUSE El/SO PLYTOP ORLYsB BEEN FF1150 TA EEBTER WE BEETS BNUTS3/32 ERASE TUBE TAP 2-SB TEBEAB POWLARE I25 BELSABAR B SOLEER RE EBEEST FLRARUE SOREW B AFT FURWEB BI VBELVSFROEV S/BEllS SF5588 OPTIONAL DETACHABLE TAIL foam wings frequently destroyed wood structure generally survived New foam cores installed later model service again very low cost important models flew better competition Since have built foam wings almost exclusively 1977 Dragons won Dekalb Aero-Challenge MACA #1 Slow also took 5th Nats 1979 1980 Dragons featured detach able tail sections ease transportation repair feature has entirely successful have seldom really needed dis assemble models 1981 fleet will feature permanent tails plans instruc tions cover both options two extremes Combat design eggshell3 battering ram Dragon neither An eggshell airplane extremely light big fragile airplane can Out turn competition will tolerate contact kind battering ram will fly through anything another its kind can sometimes vertical eight Dragon best effort striking compromise between two Materials lumberyard get slab PIVOT PONT A EXACTLY UBOVE URFATE UF TIP cUTTER ____7 3/A STRAPPENG TAPE/ CONTINUOUS WRAP OVER SPARS B AROUND WIND TIPS OVERLAP 0 ON BOTTOM FOAM TIP AL/OAR TIP CUTTING FIXTURE FOP VIEWAER AENT 3/3200 T1 IITB P1LEER ARMSOEEEEEE PEPPER LS AR BRASS- P/IS AD BRASS5 5P FLISETA0VUTBOPES0 3/32/WA111 22 AELES VIEWBEt UIE BR A55 5PM STREP 3/32. I/BS 9/IS PA TUBE BROWS B PEASR NPPER FUEL TANK Heres authors fleet pack herd Dragons set upforthe Canadian Combat ruleawith amrtnrcnr cot wkoola IndavaorvIoao So annA far manS na alone Ion Sn nroain insulating foam 2 x 8 ft 2 wide Density normally 1 lb per cubic foot Genuine Dow Styrofoam light blue stuff about twice density makes planes last fly like furniture Pick up 8-ft length urring strip dont have some scrap wood around house will also need 6 x 1 ft piece plywood particle board foamcutting fixtures either fuselage type youll need 4 hardwood motor mounts plywood 5/32 dowels x 3 balsa 36-in spruce / x qd erfect leadout wires Fox 2-in bellcrank control horn 1/16-in 3/32-in -in brass tubing Dubro 30-in threaded pushrod clevis 4-40 x l-in bolts blind nuts detachable tail also requires 1 x balsa /16 x ce 6-32 x 2-in bolts blind nuts solder-type clevis Titebond used joints use Hot Stuff wood-to-wood Hobbypoxy Formula 2 fuel-proofing motor mount high-stress areas Use low-temperature covering such Solarfilm GBC laminating film foam wings High-temp material such MonoKote Fascal good fuselage tail canopy models require no paint Nylonreinforced strapping tape such 3M used prevent flexing wing Foam-cutting equipment important piece equipment power source have used battery charger past now have American Flyer train transformer cutting bow fully explained plan wing tip cutter As shown photograph drop-wire fixture vertical plank series eyelet guides exactly 1 surface An eighth-inch piano wire held large paper clip being heated An alumi num heat shield protects plank torch Vertical alignment essential evening spent equipment will pay handsome divi dends time saved future models Cut airfoil core templates plywood Use 5/64-in nails align templates foam Mark foam carpenters square felt-tip pen model requires four foam blanks follows 18 x 10 60 Model Aviation Wingtip ieadoutswhich arecutand terminated aftereievatortravel adjusted Doing operation last results lengths Foam-and-balsa turtledeck glued clamped place after wing covered Spruce strip protects balsa clamps chicken hopper tank under construction Large tube hopper small fuel feed Completed tank R has vent plugged leak test Controls Dragon bushed Fox belicrank pushrod guide re inforced elevator one-piece Du-Bro threaded pushrod Fox metal horn Installation pushrod guide must taken seriously Sloppy work point can ruin planes chances competition Heating tip wire drop-wire fixture preparation boring lateral hole wing blank See text CUTTING WIRE FOAM BLOCK WIREHOLESHANDLE SUPPORT BLOCK END STOP 3---BASE RIB TEMPLATE ASSORTED WEIGHTS WALL OR/ COLUMNWOOD PLANK 2xIOx APA NiFIW ci IADELCOFOAM ASSEMBLY r I II II II / URES ITABLE FOAM WING ASSEMBLY METHOD rAPPLY PRESSURE HERE TO SQUEEZE WING HALVES TOGETHER /1 WING TIP CUTTING FIXTURE MACA Nets Smiths campaigned Dragons detachable tails No problems encountered wIth system two years flyIng 17 x 10 two 5 x 10 can get four models 8-ft slab plan building foamies make big mitre box cut blanks have someone hold straightedge vertically against side cut blanks Take blanks drop-wire fixture well-ventilated area Clamp fixture true vertical position using level core tem plate align blank under wire Keep fire Continued page 125 February 1982 61 can take eyes off lovely Moire Smith look drop-wire fixture rack completed Dragons background 1981 model Dragon like 1981 VW best changes internal Pinstriping tape along leading edge helps protect against dings cuts caused eating other peoples streamers secret Paul Smiths mass-produced Dragonsquality control inspections Ink lines indicate gluing area stab left bare Moire Smith checks five-in nose alignment gauge FOAM ASSEMBLY FIXTURE plus $3 postage Simplex 143 Richmond Street El Segundo CA 90245 Crocket/FAI winder converted purchaser English hand drill die cast nylon case completely encloses metal gears Thrust load carried special ball thrust race crank supplied rather short can easily replaced longer made bar stock winding knob appears too small might want replace drill chuck furnished discarded replaced wire hook Parts instructions conver sion included Price $2400 plus $285 freight Crocket P0 Box 12600 Fresno CA 93778 $2950 plus $295 freight FAI Model Supply P0 Box 3957 Torrance CA 90510 Bob Meuser 4200 Gregory St Oakland CA 94619 Dragon/Smith Continued page 61 extinguisher water bucket handy Heat point wire red hot Set torch down release paper clip wire should pierce straight hole through blank can make hole larger smaller varying temper ature wire Excessive heat can cause oversize hole too little heat can result wire wandering off center may well pierce four sets youre pierce 5-in tip blanks Next comes hot-wire cutting Clear off large enough area cores lay flat bench blank templates held square bench templates square leading edge nail templates foam Always keep same side up avoid creating warp templates arent quite symmetrical Adjust transformer give good clean cut dragging wire making too wide cut Practice some scrap After cutting spar notches disconnect wire thread through pierced hole Cut void disconnect wire again pull Out wire scrap Use same nail holes align airfoil templates Airfoils cut four separate passes starting always spar notch now have fixture front spar slot earlier models front spar slot cut manually-held straightedges Tips cut airfoil template tip-cutting fixture Cut top first bottom removing top scrap sure position both template center line pivot point exactly 1 above base Glue outboard wing tips outboard wings time Position insert wing tip templates inboard tip cut out insert Glue leadout mount tip glue tip inboard wing Sand cut Y8 off top scrap save install later Use Titebond glue joints should also make two 24-in assembly fixtures time Use airfoil templates cut two cradles foam make clear ance notches engine mount tail required one-picce fuselage cut furring strip length glue pine spruce spacers bring front end up dimension 125 dry file spar notches two-piece fuselage file bellcrank-mount notches inapiece in balsa glue x -in spruce both top bottom dry cut center rib tail boom Sand center rib match airfoil sand tail boom fit rib Using center rib alignment glue 3/16 capstrips tail boom dry sand off excess glue drill Introducing New H S Hornet 42 CID 6 1/3 HP Only 6 1/4 lbs New AMA 1 982-83 Rules 44 Limit -- Make 42 CID Legal 5 1/2 center top cylinder head 3 1/2 center side carb Perfect 1/4 scale P-51 1/3 Pitts Very smooth running Like Quadra Optional twin-stack nrclfln Smoke cnsjoitntnlahlo Sit oh 5 en o sea lab Saabln-ing pioton Icr higher cotnpnssion s tile Optional choho Enan hand stoning Spocial clone- coopind heh-tnnoitn oentnm lot moo AF adjatior Solid- know teen macnt op tional radial soppottsatas[ Rotter Ibroot- hearing noolosionly tnan model ainonft Youll Love Partner An updated version popular engine Note improve ments made especially mini ature aircraft use roller thrust bearing double-ring piston soark olug location low 13 1/21 S more power output LIMITED TIME OFFER LIST $14995 SALE $9995 seal knits qinnar Fnwsr-bnlnncnd IihO-wnightwink starlnr toed geanes finebentReact-date prop bob MORE HORNER SPECIAL PART RETAIL SALE 772$24955$75900 77927200$77555 7777250059995 7087250059995 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 79 ROPER ENGINE NEW Sale Last) 79 ENGINE NUB 8 MOUNT PACK 79 USEO DEMO ENGINE BALENCED 6BOLT HUB Repay Patnar N Ouad4 PROP ORILL JIG 709 779 770 7077495 702$7795 So compact measures much larger Quadra Partner engine Comes complete built choke 6 bolt prop hub Radial mount available twin stack INTRO $19995 SALE 1255 7200 2455 7555 500 7595 755 2 75 Write yr CALL Seed 20c Stamp CatalogWill Ship Orders Same Day cODUPSAdd 54 shipping per engine HOR N ER SALES INC Rt 2 Box 9 300 Dixie Hwy. 312 946-2515 Beecher IL 60401 PEANUT-PEOPLE PRESENT PEANUT SCALE MODELS MuSTANG MILES M-18ZERO DRuINEPIETENPOL COUGARPIPER CUB GIPSY MOTHANDRESON GANAGOBIELACEY M-lO Rubber Powered Balsa Tissue Kite $595 SPORT MODELS PRAIRIE BIRD 4 KIT $595 BABY ACE$649 ONE NITE 20$095 ONE NITE tO$595 STRINGLESS WONDER$495 PECK ROG$195 RUBBER OR 00-2 POWERED BUILDING NEEDS V PROPS TISSUE RUBBER WINDERS BLADE SHARPENERS BEARINGS PROP SHAFTS LUBE WASHERS WHEELS FUSE CO2 MOTORS BOOKS PLANS MORE ADVENTURE MODELS IPONY BLIMP ttFTRICAIRSHIP -KIT $24900 COMPLETE CATALOG $100 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS PeckPeIymers SILK 5/YL $445/rD RedYelIow Royul Blue Fine Quality Model Building Any Length Max 5OYd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SIIIPPINGt ADO 50 FOREIGN 150/ORDER NY RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROADn NEW CITY NY 914- 634-850010956 P 0 BOX 2498-MA LA MESA CALIF 92041 PHONE 714 469-8075 714 442-4630 February 1 982 1 25 List $28995 Enginenub Shown wan option al mount & choke SALE $17995 RAOIAL MOUNTRapar 378 79 703 RAOIAL MOUNT Partner 723 TWIN STACK EXHAUST 37 8 Kiarita 705 TWIN STACK EXHAUST Partner Oaadra 720 CHOKE ASSEMBLY Parmer 5 Ooaadraj 727 9500 3955 BRITE SPINNER Repec Part N Quad 722 6500NEOPRENE GAS LINE Per Feet707 2500 RESISTOR SPARK PLUG RCJ-6 773 BIG PROPS VAILABLEI Finished Balanced Weed Aviation Jewelry Custom Made Reproduce Plating Gold Rhodium Bright Nickel White Metal Molding Largest Aircraft Jewelry Selection World Also flight School wings mylar decals jacket patches novelties Plus Fine Hard-Fired Enamel er Special priCRO Re volume orders Call write today Simi-Air214 596-3505 19107 Creeks Dr. Dallas TX 75252 r CakQie R/C 0 VAN NUYS CA 91408 SPORT CARS PO BOX R/C GOODIES 3 II PORSCHEPORSCHE 917K BMW-MI IU U Iw 111/21nIg15-3/4inCHARGER15-3/4inI $6495Reg $7995$995Reg $8295 InI $4295SPEC$5295.-CH TXSPEC$5495 flu CHARLIES NEW 1/12SCALE R/C CARS COMEASSEMBLEDREADY TO RUN COMPLETE WITH 2-CM TRANSMITTER AND WITH RECEIVER AND SERVOS IN LED 27 MHZ ONLY BATTERIES NOT INCLUDED DECALS ARE FURNISHED CARS FEATURE FULLY PROPORTIONAL STEERING WITH AUTOMATIC NEUTRAL PLUS VARIABLE SPEED CONTROL BOTH FORWARD AND REVERSE PORSCHE 935 AND BMW-Mi ALSO HAVE OPERATING R/L TURN SIGNALS PLUS STOP LIGHTS LOW POWER TRANSMITTER BELOW 100 MW REQUIRES NO LICENSE FUN FOR THE WHOLE FAMILYI CATALOG 6W L L70Fore - SHIPPING -$400 USA CAUF RESIDENTS ADD SALES TAX NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed Aotomatieelly align fuselage structures ate built strings measuring eyeballing Simply slide four centeting brackets track until align firewall tail uint two bulkheads Clamp fuselage together lightly mith rubberbands structure mill thee straight track ucaurnmoduIesmrudusuetufoufS Price 2995 ILI Miter Master Miter Master tool designed enable crafts man make perfect joists mood accurately sanding pre-setangles ThesguaringfencnA allowoforprecisegO angles atd retracts below surface Any angle cay beset triangular guide using adjacent side complement angle mill turmed making invaluable truss construction new cyanoacrylate adhesives require accurately fitted loints achieve full strength Miter Master mill enableyso make easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 Pnce $750 Ausembled bound 503 357-2732 Navy Best Ducted Fans SKYRA Y F4D- Plan FormDesigned Bill Effinger Its f Radio Control SKYNAY NAVY F4D1 Scale Ducted Fan RIO RK-20 Fan Unit ong Plan Set RODF-1 $1995 Prices Complete Plana Sub Assembly Detailed Parts Liats Add $200 Mailing Tube Send Brochure Details new designs & great things come Send $100 refundable information two assembly bolts 6-32 x 2-in Glue upper lower bellcrank mounts peg -in dowel Remember peg goes through center rib tail boom Round off aft end tail boom cut stab slot Motor mount Glue clamp hardwood beams center rib fuselage drying add two vertical spacers dry glue clamp 1/32 outboard ard plywood doublers outboard doubler must high-strength plywood such Sigs inboard doubler can lighter 3-ply type such supplied Balsa USA Sand motor mounts doublers shape drill motor bolt holes 9/64-in tank wire hole 1/16-in dowel holes 5/32-in Install sand dowels smooth Using Dremel tool end mill cutter fit engine mount engine Mix up small batch Hobbypoxy Formula 2 warming heat gun stirring stick until thins out consistency clear dope Spread warm glue over motor mount being sure get bolt holes Apply heat finger-paint smooth final application heat will remove finger prints Hang assembly nose-down dry Control system system designed re use mind Fox 2-in bellcrank provides adequate stability better strength less weight popular 3-in model Cut two -in sections 3/32-in tubing leadout guides slip onto full-length pack Perfect BC leadout cable Cut two 1-in sections 1/16in brass tubing bushings slip onto ends bend horseshoe shape insert bellcrank bind copper wire solder leadouts cut terminated after final assembly airplane one-piece model uses Du-Bro 30-in threaded pushrod Z-bend bellcrank end two-piece version uses same rod cut behind trailing edge short length 3/3 2-in brass tube tapped 2-56 thread bound soldered front end terminated control horn soldered clevis Fox metal control horn used heavy-duty pushrod guide fabricated Vs-in tubing bound soldered piano wire screwed epoxied fuselage failure guide could cause loss control need Tail canopy canopy rudder made Ye balsa covered before installa tion stabilizer /a balsa n spruce spar trailing edge elevator also a 1/32 plywood patch top mount control horn prevent splitting along grain Mark gluing area felt-tip pen cover hinge stab elevator before assembly use either Fascal Mono Kote both covering hinges iron-on hinge method described April 1979 Model Aviation has used complete success models since article published Assembly Glue front vertical spar outboard wing taping masking tape Sand runs motor mount redrill -in mounting bolt holes recheck engine fit Glue outboard wing fuselage center rib youre building two-piece model Use two chains rubberbands hold assembly together drying Some scrap cardboard under bands needed protect foam wing tip drying can install stab 126 Model Aviation LGLOW lireb cdl PLUGS 0 Blow Proof Seal OSix Types 3 Heat Ranges S Longer Life S Flash Starting Only $120 SWANSON Aiwe PO Box 1517948 Wayne NJ 07470 eAmerican made Schnuerle ports eDouble ball bearing sPerry carburetor eForged & domed piston 0 Forged &rod 0-ring sealed back cover lnvestment cast crankcase Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA cA 91107 213 359-0016 795-9821 assembly set up controls rubberbands can removed fit inboard wing onto model may require several tries get proper clearances cut controls motor mount assembly fixture simply two 24-in foam slabs airfoil shapes cut wood plank some waxed paper whatever assorted weights handy Glue inboard wing spars airplane Titebond place model between waxed-paper-covered foam cradles stack plank weights top wing tip should against wall can press against other get good tight joint next day remove model fixture install leadouts pinned balsa inserts wire wickets glued epoxy Hot Stuff baking soda scrap foam now re-inserted one-piece model also needs foam fillers between wings Ask GMP dealer details3U CRAFTSMAN HO TEL 213-992-0195 GMP GORHAA4 MODEL PRODUCTS CALABABAB CA 91305 TVVX 9104945833 February 1982 127 RJL [the ULTIRTE fluing machine K61 Suggested Retail $14800 Muffler Included New Expandable concept R/C Helicopters Competitor will fly 45 50 60 size engines model can take novice flying winning AMA expert class Advanced design features never before seen RIG Helicopter Triple ball bearings main tail rotor hubs5Light weight metal construction Autorotation standard5Low cost parts aControls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Dual ball bearing tail pitch controlSpiral hypoid gears main tail drives WHAM SHOW 82 Dont miss greatest Radio Control Show East Westchester County Center White Plains NY fts 14th annual show its sure biggest best ever Keep fleet last week end Febma19 open 1992 WRAMs Shew going te largest yet Well seer 150 manufacturers ether enhibi tors hare already signed up bring eserything thatneemin hobby . hits engines radios accessories neery thing betweer farrtous Swap Shep will lull operatise thousands ot items including built-up planes almest sew radios engines on en sowething just about eseryone Static Cumpetltlue Make sum latest creation tinished ep ard polished poell hare chance take home et dozens troyhies offered eseef 5 rOSTuuIuso r roC sours rusT s,u r5050 500 50005 0050 ursoso Curs stubS Foss rrLoo 5050 Judging taken ylaoe Suraae utternoon Entries acceyted until 12 soon Sunday Synural udmisuien area will prosided en 501 h days tsr static display sontentanto city Suilt-sp models [ BROWN A-23 CO-2 TINY PEANUT CO-2 ENGINE ENGINE $359S CHARCEN 5995 3/4 COMPLETE CATALOG $100 PHONE 714 469-9975 er 442 4838 Peck-Pelyiners BOX 2498-MA LA MESA CALIF 92041 over fuselage two-piece model needs balsa fillers behind spSrs dry give whole wing light sanding blend parts together remove glue runs Clean wing soft brush vacuum cleaner Apply nylon strap ping tape shown plans essential prevent flexing breaking glue joints may also want add strip tape near leading edge prevent streamers cutting too far foam Add AMA numbers other decorations before covering Covering Very low-heat material needed melting foam Cut four pieces 25 x 12 allow overlapping tips center leading trailing edges Lay piece cover ing over one-quarter wing iron line down spar Work iron away line toward leading trailing edges will keep air bubbles being trapped under covering Cut slits covering laps around tip edges also helps prevent wrinkling remaining three sides same way fuselage one-piece models needs built up foam turtledeck capped balsa strip front strip needs tacked place Hot Stuff remainder clamped place under spruce strip glued hegisfoution 01 models sill start &30 am mooring SWAP SHOP WROMs Soap Shop has some see 51 major show altruc tiers thOusands 01 irdluidual items charging harde help olimirute registration Orssh 1502 group Shop ciii proviSo tsr pro regintratier terms seoniur forms nerd neltuodressed stamp ed enselepe JeOr shinIer 4 sever Rd Luoshmunt NY 10530 SPECIAL NOTE pearthere ciii Seer restriotises rumser St bsiltup coduls registrant nay place Scap Shop ruorrrrrtarrratisr crOOr 00 CurS 5005cr 55 Cneoeicr no cross ruirr 5Y tdWa 19041 mO-5usr cEnecopenEe fuels eEfSMOSSLEe5 50 lebruary 20/21 lOAM to6PM SCL I ScALE DRAWINGSIA PHOTOS BOOKLETS iG jREPLA-T2CH asSINTERNATIONAL 1931 CATALOGS $200 49500 IVtC KENZIE HIFVY ____________ VIDA OREGON 97489 Titebond Fuel-proof joint between covering motor mount warmed Hobbypoxy Cover fuselage plastic film Install pushrod guide rudder canopy fuel tank wires Fuel tank construction Materials 010-in brass shim stock 3/32 -in OD brass tubing Sears 60/40 solder Kester soldering paste flux Weller electric solder ing gun rather torch used wood form shape tank helpful essential Cut out three parts main tank solder front seam add top bottom Sharp edges should filed smooth taking care clean up lead dust Insert two filler tubes pressure-test under water tank airtight drill four holes outboard side two front Install fuel feed air vent tubes Make chicken-hopper out short piece 9/16-in tubing shim stock lid File bottom hopper tight fit tank solder place Note hopper Vs above centerline compensate richening out inverted Pressure-test tank under water again Clean tank hot water baking soda install Dragon foam rubber pad 128 Model Aviation N underneath rubber tubing over tank wires protection fuel filter may need frequent cleaning first new tank Engines Fox Combat Special Mark III has standard engine Dragon Future models will feature Mark IV have yet opportunity test Supertigre G2 have used some loss speed 05 36 has used some success local contests OS equals Fox speed adds too much weight good maneuverability opinion Fox consistently pulls Dragon 92 94 mph 15% nitro exceptional engine able break 100 several times 30% get under 90 something wearing out modifications replace rear bearing Hoover-NSK R8 78 use Supertigre needle valve assembly venturi insert wrapped polyethelene plastic form air seal head clearance set 015 018 essential good performance Break-in via bench running 9-6 prop cut 8 Lapping required certain very tight replacement pistons sleeves like Fox becasue runs right Out box doesnt take time away important things like fuel tanks Flying completed airplane should weigh 265 ounces balance 25% chord slightly outboard thrust line sidemounted engine leadout position offset wing provide line tension necessary recommend tip weight engine out-thrust rudder offset Make initial test flight engine set rich side until become familiar needling engine chicken hopper tank Foamies can become warped covering assembly check out use iron trim tabs correct warp plane feels too sluggish go aft CG control Ive never come Out tail-heavy yet Top Flite 9-5s 9-6s cut 8-6 work well have four Dragons tested trimmed out should ready contest CL Aerobatics Paul Continued page 62 Bill Lindemann Metuchen NJ wrote question come results WinstonSalem CL Championships showed Novice Beginner scores 454 442 431 Well thats good question does show voluntary placing usually allow contestants seed themselves category choice doesnt always work out numbers However lets also remember what 454 region may another because ofjudging differences abilities competitors etc scores shown Advanced Expert categories results contest sent writer however can surmise Experts probably scored 520 over Advanced falling somewhere between 450 500 What says PAMPA categories dont always work right down line since contest management still refuses have four cate gories Winston-Salem meet will necessarily some place scores will off usual scale place Richard Byrons records pilots scores would come handy contest management reference guide Perhaps could have copies pilots rankings sent major NOT JUST ANOTHER CATALOG novice tips experts expert thousands products specifica tions photos help decide make hobby enjoyable everybody interested RI Its standard reference book Will Ever Need Available through local hobby shop use coupon Yes send copy new RADIO CONTROL BUYERS GUIDE D Enclosed $950 $795 plus $1 55 postage us & canada dians Send us funds VA residents add 4% sales tax D charge D Mastercharge D visa charge No________________________ Exp Date _________________ Name Street city State Zip Return Boynton & Associates Inc clifton House clifton virginia 22024 mE i ion special MK III 84 Mono 78 5pn Weight 18 lbs2195 Travel Ai 2000 105 Classc Scale 5plann 23 lbs2295 Travel Ai 4000 99 9adal ing Classic Spe 23 lbs2295 Fokker 0-VII 88 Gernan WW Fglsn Spe 23 lbs2495 Ceeing Scan Sopsnth Pcp 80 Spn Sopacth Tnpnbocnd 80 Tnplane Waco ATO Lyjack Vesoc 90 8placn Nncpo-t 11 Sebe 85 Splanc 3 5 Scale Fockec 081 72 Tcplace Plans shipped U PS Parcel Post Please add $300 torpostaqe liandlino fastest service send postal inoney 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