Radio Control: Scale

WINO K IDEPLOY 2 GUNNERY RUN 3 DROP SLEEVE V pilot judges Srulls favorite target tow option requires three passes front Scale flight judges TOW SYSTEM LAYOUT PROGRESS has made state art Scale modelling almost unbelievable pace during last 10 15 years Walking down flight line large Scale RC fun-fly major Scale contest days can real experience Its enjoyable spectators intimidating contestants craftsmanship precision daring todays Scale modelers truly amazing Any Scale subject seems within easy reach no matter difficult complex scalelike finishes level detail overall scale appear ance achieved modelers would have difficult imagine short time ago does seem Scale modelers fast ap proaching ideal creating full-size aircraft have magically shrunken down model size Luckily yet tough interesting challenges remain example area us still have difficulty simulating ripples surface aircraft covered light-gauge metal problem particular group aircraft few happen very popular Scale model subjects time visit Smithsonian Air Space Museum Washington DC eventually wind up World War II gallery looking over Mitsu bishi 21 A6M2the infamous Zero Zeros challenge plane commonly modeled full-scale aircraft good reasons tow ne 50 30 b1238 dec fish ng no Sig Koverall sleeve oopof 1/8 ubber oop monofilament sewn front seem EJECTION SYSTEM Cc stretch hook rubber pin fuselage rear hook swivel release pin N~Jl Ca folded sleeve placed fairing took lot trial-and-error experimentation get everything work right target tow Author Srulls target-tow model Swiss Air Force C-3506 Schlepp makes low flyby black/yellow/silver high-visibility color scheme typical used target-tow aircraft Cd rubber larks sleeve Out release pin retracted towline reel mechanism easily remov able authors C-3506 model connection lockrod ejection pin servo arm shown towline re tainer pin also visible Function electric motor left side described article REEL CONTROL MECHANISM 47 SERO ock rod 1election pin uS alum tube fairing tow line guide folded sleeve C1TAKE OFF Cl ejection pin place reel locked place lock rod K 2 DEPLOY SLEEVE 1 2 election pin retracted lock rod unlocks reeL reel unwinds end line C3 DROP SLEEVE 4C3lock rod unlatches tow line retainer pin Heres plane-mounted towline reel sleeve-ejection system works Don Srull 46 Model Aviation Radio Conoi Scale Don SruN 941 Kimbetwicke Rd Mclean VA 22101 extreme example very lightweight thin-skinned aircraft remarkable perform ance Zero achieved modest en gine power due large measure its ultralighsweight airframe Close examination full-size aircraft shows difficult would model Zero accurately does nor have smooth regular surface simulated well usual RC model structure Zeros skin looks world like thin cardboard being wavy un dulating between group rivet patterns rib spar stringer skin panels riveted clearly visible semi gloss finish Smithsonians Zero combined gallery lighting accentuate surfaceripple effect flat nonglare finish wouldnt totally obscure foil-like nature its skin competitive RC Scale modeler might well wonder bad Scale score would perfect rendition very bumpy crude surface thats another story So build believable Zero Since arent talking about Precision Scale dont have worry about absolute fidelity Stand-off Scale viewing distances however skin larger scale Zero should look different smoother-surfaced thickerskinned aircraftsay modern jet fighter Its clear usual construction finish ing methods widely used building models metal-covered aircraft wont basic prob lem methods designed produce smooth ripple-free plastic model-like results work welland thats problem two ways can think pro duce reasonable facsimile panel ripple Im sure some Out have tried other better methods Let us hear about experiences first simplest way fake skin irregularities ripples painting careful use airbrush subtle shadows highlights make skin waviness visible can painted onto perfectly smooth fiat model surface Incredible threedimensional effects can achieved very quickiy little practice artistic bentand already skillful airbrushthis certainiy easy way out After panel lines marked rivet patterns added number skin panels should seContinued page 163 3 dozen $400 ea 4 dozen $375 ea 5 dozen $360 ea 6 dozen $355 ea Add $400 shipping per order Please send good black white art reproduction Please specify quantity Trans-Cover colors ink color ordering Limit ink color per order Now fliers over world have neat inexpensive functional way protect R/C transmitters dirt dust rain Custom printed Club logo Constructed durable canvas lifelong Velcro closure Available red blue green yellow orange black Colors can mixed size fits Send check money order KD GRAPHICS 3315 13th Avenue Columbus Georgia 31904 404/323-2787 9am-Spm EST 1118 Littlest Miracle Workshop PROF SUITABLE FOR ALL HOBBIES AND CRAFTS Makers of. Mini-Glue Tips Stray- Tray Tee Bar Mini-Saw Ruff-Stuff & Jewel Stripes January1989 47 i4NS-COVER overhead shot full-scale Mitsubishi Zero clearly shows wing upper nose surfaces have plenty panel ripple Also visible skin distortion caused rivets fasteners repl strips Add 20% postage Send 50 catalog //LJtCJ APPLIED DESIGN CORP PO Box 3384 Torrance CA 90510 Sport Aerobatic Combat Wingspan 60 675 sq Engine 40- 602 cy 60- 804cy Sym Airfoil WI -76 oz 4 channel Slick Stick CRENSHAWAERO Z 423W Washington Shelbyville IN 46176 317-398-6528 StudentM F till 400 pm CSTI 3 Channel Trainer Wingspan 52 Area -458 sq Engine 18-302 cv 404cy.Wt-56oz KIts Feature Machine cut & sanded parts rolled plane hardware pre-bent landIng gear Check Money Order US Funds5A5E mole Information -F-who have sent details about favorite fly ing sites Although have received information number sites would really like have quite few put together really thorough complete directory slope sites send information favorite site please include such things prevailing winds slope gle landing area characteristics quality lift recommended flying experience directions and/or map local contact possible photo site Thanks again help project RC Scale/SruII Continued page 47 lected subtle shading keyword subtle Dont panels dont overdo Two colors will required high lights shadows Using basic air craft finish color add little white high light color little black shadow color Experiment first some scrap paper before tacking model Spray shadows first add highlights Remember Go easy dont overdo other method requires model sub structure supporting skin less scale model covered skinned somewhat flexible material does tally hide supporting substructure Major bulkheads stringers ribs spars model should located scale positions wherever pos sible Its usually good idea follow fullscale prototype structural layout anyhow scratch-building model rather totally re engineer perfectly good full-scale airplane de sign Rather using relatively stiff balsa skin typical balsa stock would firm %2 sheet plank model want use strong flexible covering material skin should flex distort small amount make internal structure visiblelike prototype Zero starved horse look usually work hard avoid just thing trying achieve case two materials have experience job nicely / ply /~ balsa / ply has very good tensile strength plus some flexibility best suited larger Scale models easiest use large pieces surfaces devoid compound curves such wing skins /16 firm balsa covering well-sanded %2 soft balsa well suited small-to-moderatesize models %- A-scale easy apply compound- high-curvature surfaces Being flexible will tend sag ripple /64 ply So depending scale model local skin strength required choose whichever best suits need case balsa skin will require layer lightweight glass cloth after attached framework will provide needed strength balsa well making surface hard enough finish standard practice edgegluing balsa sheets sanding smooth finish before attaching framework applies thin-skin structure used fi nal touch panel ripple should applied airbrush authentic look Now lets hear wrinkied-skin Zeros about target tow option least-seen interesting flight options suit able number Scale aircraft subjects target tow military training aircraft dating back Thirties pressed ser vice during WV II tow various flag sleeve targets use ground-to-air air-to-air gun nery practice An example Dreadnought version British Hawker Sea Fury fighter shown page 92 November 1988 issue MA nice plus target-tow airplanes sport interestlng distinctiveif garish color schemes ideal Scale model use sim ple reason bright color schemes flight crews wanted make absolutely sure tow aircraft could clearly seen dis tinguishable target sleeve nearsighted rookie gunnery student Though very interesting target tow simpler flight options Properly done INTRODUCING THE ELE7/JL/FE FOR 020-035-050 ELECTRICI\r SPAN 36 AREA 25T CHANNELS 2-3 ONOTH 3T FLYING WY 20 TO 30 OZ Designed built EIecSrlo Model Co 218 Oyster Ck r Land TX 77478 242-6229 Souths ingest inventory satro motors & accessories Need help wIth yow electdc ahplm orglder Ask Doe j~DuaIStrut Nose Gear Fults Tooling PO Box 95 Champaign IL 61820 NumberflistanReCe SF350 5 95 SF400 6 95 SF500 32 66901695 RF500 32 96-121595 RFY5T 321 SCSI1565 AAIosIabRGuadla OFROTlAs3116 1 seal 2995 PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned led Tuned Pipes Headers uri Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpassed January 1989 163 Yes Virginia Santa Claus 2z Get Nearest Santas Shop 5sPeopIeof Com6ddem /mkc74 Aec Instantly removable sri-cycle gear wheels Pre-built boom landing gear sockets 8 push-roth Astro motor mount cobalt adapter Preformed leading edges knotched trailing edges Air frame 6 oz 75 ox landing gear Perfect performance 02003535 systems Maximum duration 8 glider-like motor-ofi flight characteristics ARF build 8 cover wing also completely built tail surfaces hinged . $7996 w/o gear $8695 gear ladd $3 eftipping TX res add 6% sales taxi FUSELAGE JI STATIONS THE BEST FUSELAGE JIG EVER PERIOD Provides Solid Support Accurate Building Rugged Construction 7 Ply Aircraft Plywood Provides Lifetime Use Two Sizes AvailableRegular- Fuselages Up 6 Wide Jumbo- Fuselages Up 9 Wide Use Own Building Board Work Ben& Base Mount Jig Station Uni-Strut Guide Rails Most Versatile Set-Up Contains Complete Hardware Instructions Including Uni-Strut Information Box 4 Stardard Jig StationsSI 795 Box 4 Jumbo Jig Stations1995 TwoS ft long Guide Rails induding mounting nuts2195 Include S 250 Per Item UPS esidents Include 6% Sales Tax GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 1 476-8639 three sequential passes front flight judges required target sleeve usually carried internally aircraft within ex ternally mounted pod sleeve typically /2 3A length aircraft should towed distance about 10 20 times length towing aircraft After deploying sleeve flying cruise speed medium altitude straight flyby made low altitude 50 60 ft simulate ground-to-air gunnery training run low-altitude pass 10 20 ft made wind parallel runway just yond landing area target sleeve tow ing cable dropped Calling drop performing just model passes front judges can make good impression have learned drop sleeve line onto runway 50-75 ft tow cord can become entangled prop landing modelusually tow model have done twice can mess basic requirements tow mechanism 1 Hold folded sleeve reel tow cord securely until released 2 On command eject sleeve unreel full length tow cord 3 On command release tow cord reel ways accomplish items course sketches show done Swiss target-tow model C-3506 Schlepp using servo tow functions trial error plenty latter found out few things may help others want try tow system First type cloth used construct target sleeve important want lightweight very springy material can folded compressed small space about 1 x 2 x 3 will released tend spring out its original tubular shape also want material un affected moisture tried silk worked OK perfectly dry light drizzle turned soggy ball would unfurl did have luck Sigs Koverall polyester covering material ex pect lightweight Dacron cloth used sailmakers construct spinnakers thats kind sail landlubbers would ideal constructing target sleeves way color sleeves used full-size Schlepp Dayglo Red Orange reel spool shown photo built up hard balsa /16 plywood made could easily removed unit servo model tow system servo operated off auxili ary channel transmitter auxiliary channel lever placed center position takeoff raised full Up position deploy sleeve moved full Down drop sleeve tow cord diagrams show mechanism operates photo may able see small electric motor geared spool reel mo tor taken old large servo serves two pur poses motor normally shorted out across its brushes sleeve deployed mo tor acts electric brake slow down un winding reel Some form braking electri cal mechanical will have employed keep reel overspeeding increasing chances tangling model also use motor assist re winding tow cord reel following flight removing shorting plug motor leads connecting single C-cell-size Ni-Cd motor reel turns slowly makes job rewinding 50 ft Dacron tow cord easy system lightweight convenient reliable youd like try something little fun challenging usually bomb bellytank drop have go target tow option RC Soaring/Blakeslee Continued page 49 Need good parachute Jim White has making top-quality parachutes since 1975 chutes can used winches hi-starts hand towing have eight panels highstrength marine-quality reinforced nylon high-test nylon shroud lines lines contin uous top loop over canopy maintam contour down form line loop Jim offers three sizes Large 126-sq-in canopy normal flying Small 82-sqin canopy F3B-legal size cute little Baby good hand-towing hi-starts sell $11 plus $150 postage Standard colors red orange black white extra buck Jim will make up 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