V RADIO CONTROL John de Vries 4610 Moffat Lane Colorado Springs CO 80915 WERE GOING start months column endthe back end Giant Scale model Dont kiiow youve noticed majority Big Birds drag tails Except used occasional warbird tricycle gears few far between leaves us couple ways keep rudder getting ground offa tail skid tail wheel Being devoted authentic representations full-size airplanes often stuck what full-scale craft used support rear fuselage general tail skids used during era airports nothing grass fields Skids worked well grass functioned brakes early birds didnt have binders wheelsas did paved runways came onto scene tail wheels came vogue Pilots found concrete tendency wear tail skid shoes rapidly make takeoffs difficult because rear ends planes would slip slide hard surfaces late 1930s aircraft tail wheels Giant Scale modelers have big advantage comes duplicating tail supports replicas can copy full-size arrangements last nut bolt scale parts big enough detailed reproduction World War tail skids little pivoted devices made hardwood metal pivot bar mounted across lower longerons upper end skid attached hungee rubber cord added bit spring action lower end shod metal shoe Some skids made leaves spring steel gained degree shock absorption skid itself Ground maneuverability fixed skid marginal best often couple wing walkers needed help pilot taxi Alone pilot faced delicate task blasting throttle elevator neutral rudder full over direction wanted turn Too much throttle propeller got lot shorter hit ground As tail skids improved 1 920s rounded cast metal shoes used could edged right left hard ground improved pilots ability slide around bit throttle lot rudder Eventually aircraft designers came up steerable tail skids attached rudder cables really helped ground maneuverability As noted above tail skids paved runways dont mix Takeoffs dicey model has fixed skid because dont have much directional control until airspeed great enough permit rudder effective Too-rapid application throttle early takeoff roll sure produce ground loop model needs tail skid can choose several remedies eliminate problems posed concrete asphalt runways Scale purist tail skid may split small tail wheel inserted properly done wheel will almost invisible its lower edge projecting doesnt take much horseback engineering develop invisible tail skid steering mechanism can contained rear fuselage Either technique will ease takeoff directional control woes maintaining scale appearance elaborate system skid-equipped birdsand has full-scale counterpartis build two tail skid modules Either can bolted steering mechanism within fuselage provide plug-in skid tail wheel youre flying off grass scale skid would used field has runway loosening setscrew replacing skid tail wheel simple operation steering mechanism can include necessary shock absorption Either 62 Model Aviation Nicholas Madonias Aeromaster 150 150% enlargement Lou Andrewss Aeromaster using Quadra 52 Nicks next project will Giant Beech Bonanza ipIane leti standard Aeromaster right Madonias Want version inherited excellent flying characteristics original model IJICK icnenor 15-scale IIflSUfl L0 I8KOTT roll LuCK uia iriena DI dUnn S IrOlil Chino Hills California designed scratch built WW II liaison aircraft model AFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $500 BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion andComputer Designed3 Axis Control Reserve Grand Champion UltralightPart 103 UltralightEasy Construction 1989 Sun-N-Fun Fly-In* Wood Construction TEAM INC BOX 338M BRADY VILLE TN 37026 615 765-5397 WALNUT CA91789 7145941349 594 1471 CALL OR WRITE FOR FREE BROCHURE heavy-duty rubberbands better yet metal spring can used Screen door springs seem work well either singly dual installations can cut needed length pair wire cutters Would believe Two-thirds letters yours truly receives readers column about photographs beautiful Giant Scale models picture generate tremendous amount interest writer usually wants get touch models builderto learn drawings used what special building problems solved building techniques involved completing bird instances keep builders name address backup envelope others should able provide further reference knowledgeable person wholl able get writer builder together Other writers questions require bit research happily have rather complete library back up answers library recently augmented review copy John C Fredriksen s book Flying Model Warplanes published Air Age Publishing 251 Danbury Rd Wilton CT 06897 telephone 800 243-6685 book has 8000 individual entries covering plans kits military aircraft models over world data base includes everything Peanuts Giant Scale covers entire history aviation John includes prices drawings kits accessories very great value comprehensive listing suppliers Mr Fredriksen intends update book three years book well worth $1495 price plus $3 shipping handling puts lot valuable interesting data fingertips Giant Scale builders believe old cliche Real airplanes have round engines two wings therell heck show Lake Guntersville Aerodrome Alabama September 5 6 7 Hank Iltzsch wrote tell about Aerodrome 92 gathering over 150 WW full-scale aircraft thatll complemented whole bunch Giant Scale models Great War era daily flying exhibitions will include Fokkers Albatroses SF-5s plus host other toothsome ancient fighters reconnaissance craft should some kind showWorld War air original cast Nicholas Madonia Palm Coast Florida posed interesting question sent photographs Aeromaster 150 model reverse-scale version Lou Andrewss venerable biplane Nick wondered bird appropriate column wrote assure him because Im guided IMAA definition Giant models its big un Im happy include pages Nick enlarged Aeromaster drawings 150% stuck Quadra 52 nose 79-in-span model duplicated Andrews lockbox construction originalto dismay turned out says model should have weighed 18 20 lb ended up weighing 25 lb because extra structure event big Aeromaster flies better original Great ideaenlarging proven model Giant dimensions Well leave month hint may reduce frustration factor around workbench trickier tasks model builders face fixing canopy windshield place transparent material useusually clear plasticis prone scratching Continued page 171 August1992 63 Left Hank lltzschs 113-scale Giant Sopwith Pup Right Sopwith Pups scale tail skid Hank Seekonk Massachusetts used Jim Kigers excellent drawings produce beauty currently resides Owls Head Museum Maine similar described above comparable models tape mere 12 bucks plus postage about half hour long Its available Astro cannot watch tape still believe Electric no good Please include SASE correspondence youd like reply Happy Quiet Summertime Electric Everyone RO OiantsldeVrios Continued page 63 Scratches unsightly theyre nonscale once glob glue drops windshield/canopy produces manner ugly language globs its good idea remove much glue possible before sets wait until residue dries Scratches globsfrom out techniques same Begin attacking glob/scratch some 400-grit sandpaper things out well can trying minimize size sanded area Work slowly carefully Next use finer grade paper 600-grit smooth out scratches earlier paper made Third using very soft cloth old T-shirts work well jewelers rouge available stick form polish out sandpaper scratches Finally use soft cloth lot elbow grease apply Brasso brass polish Depending severity blemish might able start midtechnique event conscientious effort should able restore models clear plastic parts pristine condition Keep big uns flying RC SoaringlBlakeslee Continued page 61 160-in-span super ships can ranged over area still seen However Brits use spotlanding bonus F31 will have same F3B landing tape big ships will disadvantage making landing points Choosing optimum glider depends lot weather Calm light conditions will favor floaters heavier faster ships will better windy weather rapidly moving thermals make prediction Id say popular all-around F3J glider will 30 35 meters wingspan have ailerons flaps computer radio controlled built light about l0-oz/sq-ft minimum wing loading capable carrying ballast bring wing loading up about 16 ozisq ft other words bigger F3B ship Ill have hand-towing technique equipment upcoming columns 171 continued page 176 August 1992 UNLEASH POWER WITHIN IZE its AWESOME Bigger Engine Won t Fit MORE POWER 5 WillBIGGER PROPS Over 4in toCOOL RUNNING Well w2000 NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels rid 75 stamped #10 SASE & $200 e PO Box 141 ord CT 06460 ivioael Diesel Technology Since 1975 Zs. L LATHES MILLS METALS EOOKS PRECISION INSTRUMENTS 7jT-- CQNPfETE CATALOG $200 100Gb stems --CAMP BELL TOOLS Co 2100 M Sob, Road beobogfi2d 00 45505 513 3228562 OOPUTEPIZED IPCPAFT PLOTS Technical Illustrations Suitable Framing Scde afting cud Scoriing S&vces 3 Views D-TECH SYSTEMS Cabk stoo APC PROPELLERS Sound Supression Design High Thrust Efficiency Long Fiber Advanced Composite Material Proven Performance US Masters US Nationals Canadian Nationals World Championships SPORTS SIZES 57x36x27x345678910$159 8x45678910$179 9x45678910$199 95x 45 lOx 345678910$229 11x3456789$249 115x 4 12 x 678$289 13x6$425 REVERSE PITCH PUSHER 9x6 10x6 7 8 11 x67$395 COMPETITION 63 x4 65x 37 78x 467 9 x 65 85 95x 65N 7N 75N 8N 85N 1O5x 45$395 11 xlO 11 1212W 1314 12x9 9W 1010W 11 uN 11512 12N 12513 13N 14 125x 9101111512 12513 13 x 910$795 135x 910125 13314 14 x 68101213 13514 144x 1051213 145x 14N 15 x 8 10111216x81012$1295 MULTIBLADE onent Propeller Systems 2-blade18081012$2200 20x6 10 12 14$2500 2208 10 12 14 16$3100 24010121416$3800 3-Blade17 1018 10 19 xli$3300 20x10121421x12$3700 22x10 12 14 16$4600 24x10 12 14 16$5500 Multi Blade Hubs2-Blade 16-19 dia$3000 2-Blade 20-21 dia$3500 2-Blade 22 dia$4000 2-Blade 24 dia$6000 3-Blade 17-19 dia$4500 3-Blade 20-21 dia$5500 3-Blade 22 dia$6500 3-Blade 24 dia$9000 Contact local hobby dealer first doesnt have what need order direct 916-661-6515 Manufactured Landing Produce PO So 939 Knights Landing CA e5e45 176 Model Aviation UNIVERSAL STRAP ON older engines muffler bolts 29-46 JT-40P $2196 61-61 JT-60P $2396 ASP 91-108 JT-A9IP $2496 Pitts-Style Mufflers UNIVERSAL BOLT ON side mounted engines Will fit 90% engines made after 1989 Easy attach Just bait muffler engine factory muffler baits bolts supp- muffler JT-4OPB 29-45 $2296 MAIL ORDUIS Picase add $250 UPS shipping Check MO Visa MC COD actepted Add $400 estra COD California residents add 9% saies tax RC SoaringlBlakeslee Continued page 171 Masters Soaring Space restrictions usually dont allow printing much way contest results Masters such special contest think contestants deserve recognized among top fliers hobby sure what doing flying will eventually influence competition flying report SWSA newsletter editor Don McColgan 1992 Masters Soaring competition opened Saturday March 21 Silent Wings Soaring Association SWSA field Covina California Thirtyfive top glider fliers braved spring rains participate 16 scheduled rounds tough competition Due rain eight Saturdays rounds completed three Sunday participate contest flier must have achieved LSF Level V Level IV contest points Level V must hold National record must have won major two-day national regional contest Saturday started three-minute Precision Duration warm-up followed four- seven- 10-minute triathalon Round five five-minute precision six seven-minute duration seven threeminute precision eight six-minute duration event landings either runway spot adding maximum 40 points rules made flying time paramount importance scoring precision rounds vesy steep Thirty seconds off goal resulted zero flight score storm clouds provided lots turbulence lift sink few showers well some gusty winds during some landings contest meant easy Round ended five perfect scores 1000 points six-place tie sixth scores 9946 close round eight Saturday Joe Wurts led iT-MIXUPMAX 91-1962996 JT-STSUPCOMO ST 61-75902750 JTST2SPST 2505-258950002996 JTBCXP OS MAX BOXi 3496 JT5T45PST 0-45003496 VERY OUIUT BOlTS DiiSEC1LYTO ENCINE MOONliNO BOLTS EXHAUST EXTENSION TUBINO ANt CLAMPS INCLUDED A/Nm U mm, 69681 points followed Daryl Perkins 69463 Dan Fink third 68334 points Sunday opener three-minute precision Round 10 another sevenminute precision duration last round four-minute precision three rounds required spot landings using eightfoot tapes divided four two-foot segments counting 10 20 30 40 points total 15 perfect rounds flown winner Joe Wurts earning five second place finisher Daryl Perkins earning four Wurts hit 11 perfect landings 11 flights popular airplane year Airtronics Legend 10 followed Falcon 9 popular brand transmitter Airtronics 25 19 Visions six radios used computer types equipment well some excellent eyesight allowed fliers venture long way field search lift Full camber control used top pilots Flaps ailerons helped make landings look easy gusty winds Tim Renaud Airtronics generously donated Sagitta 600 Olympic 650 kits workers raffle Hobby Dynamics donated JR dual transmitter case plus some JR hats Bob Massmann President NSS provided coffee mugs NSS T-shirts merchandise raffled off SWSA folks hosted contest provided labor well free coffee donuts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Joe Wurts Daryl Perkins Fred Weaver C George Larry Jolly Brad Clasen Jim Thomas Gary Anderson Steve Clasen Ben Clerx Skip Miller Craig Foxgord Myles Moran Don Edberg r Exhaust extensions worm drive mounting stral inClUded JT-6OPB 51-61 $2496 15George Joy 16SGeorge 17Mike Reagan 18JGeorge 19Tim Renaud 20Dan Fink 21Jim McCarthy 22Randy Spencer 23Don Vickers 24Todd Biliman 25Bob McGowan 26F Leppla 27Mike Fritz 28Steve Addis 29Don Tatum 30Ian Douglas 31Pete Russell 32Keith Kindrick 33John Brown 34Pete Carr 35Ray Olsen Finishing obechi letter printed above Brian Agnew mentioned gone obechi wing skins kits Bob Dodgson Mark Allen have switched also Asher Carmichaels article using obechi furniture veneers wing skins appeared May June columns received quite bit favorable comment So think obechi other veneers going seen more offer advantages over balsa available large sheets splicing isnt required ding resistant can finished just light lighter much expensive next question What exactly best way finish wood go right source Dave Acker Daves Wood Products probably modelers principal source obechi large sheets Dave kind enough drop letter include description own newly developed finishing method Before getting however let give address Daves Wood Products #7 Creekpark Ct Roswell GA 30076 telephone number 404 642-0645 Send SASE price list Now over Dave finishing system several ways finish surface obechi wings will outline ones have tried seem work well Undoubtedly other finishing systems will work try out different systemand worksplease let know will share others first two steps general instructions finishing obechi after has attached wing coreand after leading edges tips caps have added sanded 1 Sand obechi 150- 250-grit sandpaper 2 Vacuum wing use tack rag remove remaining dust Note use damp cloth rather tack rag Ruff Stuff$135 i Glue TipsAdd 20% total order shipping 4for$110 Lots Good Stuff Tee AppIied Design Corporation $310 11 L2fl3/ PO Box 3384 Torrance CA 90610$465 22 Mini Saw $925 $285 tough nails clean up water Color trimming can done after finishing spray painting application plastic film 3 Apply coat Flecto Varathane Diamond Finish buy Home Depot seal wood keep out water wet-sand subsequent coats apply using cheap foam brush 4 Next apply coat filler using old credit card can use Model Magic comparable filler Since Im cheap August1992 177 7 om Shapes Available Stay Tray $210 V intend use water-based finishes described below point wings can covered low-temperature film such Black Baron Use damp cloth right behind iron make sure film stuck wood following steps applied finishing system quick allows wood grain show Recently have several water-based urethane finishes available home woodworker finishes nontoxic virtually odorless wpack ts made high-qualify balsa plywood May flown 05 eleckic power 049 11 glow-engine power Pads instructions both versions included its compact Ready fly easily fits backseat car Offers solid big-plane pedonnance its small plane flies like 40 $4995 Accepts standard-size servosList Wingspan f 4 aches uu square mcnes WeIght 7 ouncesbare airframeSe yell hahhy dealer first deeset 22 28 ouncesready fly glow poweredstock SNAPPED ertler direct fi nnnepnmndv liv Iefeetric owsreiflInclude $250 S&H direct orders BATFERY MANAGEMENT System MOSFET nicad cycler $14995 MOSIET nicad ccler designed specilically planes boats helicopters 3 overnight/trickle outputs capable charging 1 to9 cells infinitely adjustable FIX overnight charge current ability discharge both FIX TX packs digital discharge timer 3 outputs allow simultaneous separate charging ofsur FIX TX AUXILIARY eg glow plug starter battetyl nicads Nicads will charge overnight rate 17 hours 4 minutes before automatically switching trickle rate Adjustable control allows charging FIX pack up 2000 mAli capacity TX output can discharge 8 9 cell packs 300 mA RX output can discharge 4 5 cell packs 300 500 mA True Constant Current sources used charge/discharge modes power up fiNS ONE will always come up overnight charge mode ensuring Itilly charged batteries event momentary 110 solt power loss Utilizing Current Detection Circuitry LEDs can illuminate current actually flowing out batteries Large digital display anti-glare filter shows fiX TX discharge times Unique CAPACITY CALCULATOR will allow milliampere-hour rating batteries determined Prepeid-dees MoneyOdetotCertttiedChects Snppnq & Handling $700 COO 0-dee Gash 0 Caditod Cheds collected delaety Add 0000 above amounts FACTORY DIRECT ONLY plces Spedficaloes Sabjed __________________________________________________________ Change Without notice DesIgned ad Manutactared LISA m m ...... Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Baflys Resort Hotel Casino Rti irday Sunday August 22-23 992 OB81 0 Ml 7992 Planes Trains Cars Boats Demonstrations Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free Sponsored Reno Radio Control Club AMA 0696 booth show information call Val Young 702/3S9-08 14 U U m m m m m m m U U U U U U P COOLOn BIGGEST SCOLE PLANS 0 novAe no,n Pioc, 0000k Art 5e C, 0C tOO PAGE CATALOG SCALE OOCOMEu0onton seonooc 07 COOLt 00CC OCt00 0009 Madto A. O,o5eo NC 0000 St St 202-5209 use Red Devil Time Spacklingagain Home Depot stuff will dry white thus leave fine white lines grain wing bothers mix some color filler before put wing get color local craft store called Ceramcoat Delta find flesh tone works well obechi can use coloring material compatible water-based paints Just mix enough color filler approximate color wood Spread filler thinly let dry few minutes scrape off excess going 450 angle credit card Let dry completely wet-sand back down wood 150- 250-grit paper What should remain just enough filler fill wood grain feel necessary repeat step Caution Make sure sanded surface completely dry before proceed next step 5 Use paper towel wipe thin coat sealer Varathane Let dry wet-sand Wipe off surface wet towel cloth let dry again Repeat step times like Just remember use paper towel will putting very thin light coats Wet-sand after application find four coats works fine can really get carried away trying furniture finish too much weight penalty have used above system Falcon 600 four coats finish added 125 oz weight just covered film would have added three ounces Some guys experimenting adding color pigment Varathane seems work out well fact has wing streaks blue red green looks like tie-dyed shirt sure hope never lands grasshell never find use fluorescent-colored film wing tips flaps apply reflecting silver strip along leading edge get flash ship turns sun Caution use some other brands finishes make sure compatible other testing concoction scrap piece woodpreferably open field away women children Super cautions 1 sanding finishing have adequate ventilation garage fan running doors windows open Protect lungs sanding wood 2 Always try out adhesives finishing materials scrap foam wood before use wings foam wood disappears goes up smoke try another product 3 use epoxy adhere wood cores its good idea put wax paper between obechi core beds Sometimes epoxy will bleed through obechi stick beds wings would certainly prove interesting doubt resultant lift-to178 Model Aviation RK ELECTRONICS IEINOVATWE ELECThONICS DepL 262 304 Faa Rae ttudaca 1411 03051 603-882-6022 mu Antiques Military Civilian Helicopters Sailplane IOver 3300 different20000 plus 3-view color FOTO-PAAKSIncluding KOKIJ-FAN drag ratio would give desired performance Note Some people mix microballoons epoxy apparently stops bleed-through problem provides lighter wing Another method coat inside face wood light coat waterbased urethane noted above Let dry use epoxy before apparently also helps using 3M 77 spray adhesive Another great product found Home Depot No dont own stock new sanding product called Rinsen Reuse NICSAND Inc stuff cloth-backed aluminum oxide bonded foam pad extra strength durability idea dust migrates through sanding surface foam backing can vacuumed washed away does clog can used over over Its available 60- 100- 150-grit use 150-grit exclusively working wings David B Fraser Scholarship Science Last month reported tragic death David Fraser crash Mooney Michael Selig coauthor Airfoils Low Speeds Soartech #8 David John Donovan sent letter telling scholarship fund named honor David Fraser family Fraser-Volpe Corp will make initial contribution fund Eligible recipients will selected student applicant pursuing studies either science engineering Memorial contributions endow fund may sent David B Fraser Scholarship Science Mr Jonathan Fraser 1335 Slayton Dr Maple Glen PA 19002 MARCS Symposium popular Madison Area RIC Societys National Sailplane Symposium scheduled October24 25 1992 will held Ramada Inn 3841 East Washington Ave Madison Wisconsin 53704 Call 608 244-2481 room reservations can arrive early usual day trip EAA Museum Oshkosh will Friday 23rd list speakers finalized write however symposium always interesting affair great windup flying season Its like Old Home Weekend Soaring set information contact Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 telephone 608 238-2321 rdlConover Continued page 83 10 Brush light thinned clear dope surfaces Sand fine paper Brush second coat Dont sand gripper area need good grip Dont worry about too much weight dope adds /2 gram need strength get maximum climb slick flying surfaces Now fun begins Three reasons CC-I makes good first flying training model 1 Its easy quick build repair 2 Its teaching tool shows tenderfoots adjust flying models key early success 3 Performance outstanding Can imagine effect Star Wars climb 10 times higher kids home Adjustments flight begin doing hand glides under mentors guidance could begine balancing model vee scissors CG point indicated plan its easier just test glide add spot clay nose Some will require no clay students picnic hand gliding models city council chambers too windy outside goal should get streaking tight spiral climb rolls out top may have bend slight amount down elevon rear wing opposite glide circle model must have glide circle youll lose downwind brush Try /32 right rudder glide turn 1h2 down elevon right rear wing starting trim should give safe left bank launch right glide circle kids get see what big difference small amount trim makes model flies model comes screaming down off top 9-G dive may have bend bit up elevon both sides Newtons laws paraphrased says reaction up elevon will push side wing down flight too loopy doesnt achieve much altitude try down elevon both sides prefer adjust main rear wing rudder sodacan adjuster strips help make fine trim adjustments stay put trimming phase ideal time teach students basics flight adjustment will apply flying models build future fullscale aircraft impact like teaching young person read write properly Both can have far-reaching effects rest lives Prelaunch catapult technique Make up catapult match fliers arm length Small kids need about seven-inch loop t/s4n FAI tan rubber 9 x 14-in dowel piece hard 14-in-sq balsa Longer arms can use nine-inch 1oop nine-inch catapult 10-inch loop 10-inch stick 1oop too long model will catch flop SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AD U 5InUInIA V OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIIT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT l/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1992 179 NEW PRODUCT NEW PRODUCT NEW PRODUCT NEW PRODUCT AIRFOIL DATA DISKS FOILED AGAINW Now popular demand shipping disks ready-made airfoils use FOILED AGAINIII MORE THAN 50 AIRFOIL DATA FILES ON EACH DISK IN NEW STANDARDIZED DATA FORMAT ILLUSTRATED 58-PAGE MANUAL WITH MULTIPLE PLOTS & COORDINATE DATA FOR EACH AIRFOIL Disk Selig-Donovan Eppler other Airfoils Disk B NACA Symmetric Cambered Airfoils EHRHRRH TOILED AGAIN VT 3D RI Ale ORDER YOUR COPIES NOW $2500 OVERSEAS UPPERS 53500 US PER RTSIR WATCH OUR ADS TSR NFl SOT OTHER DATA DISK RELEASES CYGNET Software 619 792-8021 3525 Del Mar Heights #2375 San Diego CA 92130 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE 9 Add soda-can adjuster strips No 8 pin catapult attachment point Coat thinly glue
Edition: Model Aviation - 1992/08
Page Numbers: 62, 63, 171, 176, 177, 178, 179
V RADIO CONTROL John de Vries 4610 Moffat Lane Colorado Springs CO 80915 WERE GOING start months column endthe back end Giant Scale model Dont kiiow youve noticed majority Big Birds drag tails Except used occasional warbird tricycle gears few far between leaves us couple ways keep rudder getting ground offa tail skid tail wheel Being devoted authentic representations full-size airplanes often stuck what full-scale craft used support rear fuselage general tail skids used during era airports nothing grass fields Skids worked well grass functioned brakes early birds didnt have binders wheelsas did paved runways came onto scene tail wheels came vogue Pilots found concrete tendency wear tail skid shoes rapidly make takeoffs difficult because rear ends planes would slip slide hard surfaces late 1930s aircraft tail wheels Giant Scale modelers have big advantage comes duplicating tail supports replicas can copy full-size arrangements last nut bolt scale parts big enough detailed reproduction World War tail skids little pivoted devices made hardwood metal pivot bar mounted across lower longerons upper end skid attached hungee rubber cord added bit spring action lower end shod metal shoe Some skids made leaves spring steel gained degree shock absorption skid itself Ground maneuverability fixed skid marginal best often couple wing walkers needed help pilot taxi Alone pilot faced delicate task blasting throttle elevator neutral rudder full over direction wanted turn Too much throttle propeller got lot shorter hit ground As tail skids improved 1 920s rounded cast metal shoes used could edged right left hard ground improved pilots ability slide around bit throttle lot rudder Eventually aircraft designers came up steerable tail skids attached rudder cables really helped ground maneuverability As noted above tail skids paved runways dont mix Takeoffs dicey model has fixed skid because dont have much directional control until airspeed great enough permit rudder effective Too-rapid application throttle early takeoff roll sure produce ground loop model needs tail skid can choose several remedies eliminate problems posed concrete asphalt runways Scale purist tail skid may split small tail wheel inserted properly done wheel will almost invisible its lower edge projecting doesnt take much horseback engineering develop invisible tail skid steering mechanism can contained rear fuselage Either technique will ease takeoff directional control woes maintaining scale appearance elaborate system skid-equipped birdsand has full-scale counterpartis build two tail skid modules Either can bolted steering mechanism within fuselage provide plug-in skid tail wheel youre flying off grass scale skid would used field has runway loosening setscrew replacing skid tail wheel simple operation steering mechanism can include necessary shock absorption Either 62 Model Aviation Nicholas Madonias Aeromaster 150 150% enlargement Lou Andrewss Aeromaster using Quadra 52 Nicks next project will Giant Beech Bonanza ipIane leti standard Aeromaster right Madonias Want version inherited excellent flying characteristics original model IJICK icnenor 15-scale IIflSUfl L0 I8KOTT roll LuCK uia iriena DI dUnn S IrOlil Chino Hills California designed scratch built WW II liaison aircraft model AFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $500 BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion andComputer Designed3 Axis Control Reserve Grand Champion UltralightPart 103 UltralightEasy Construction 1989 Sun-N-Fun Fly-In* Wood Construction TEAM INC BOX 338M BRADY VILLE TN 37026 615 765-5397 WALNUT CA91789 7145941349 594 1471 CALL OR WRITE FOR FREE BROCHURE heavy-duty rubberbands better yet metal spring can used Screen door springs seem work well either singly dual installations can cut needed length pair wire cutters Would believe Two-thirds letters yours truly receives readers column about photographs beautiful Giant Scale models picture generate tremendous amount interest writer usually wants get touch models builderto learn drawings used what special building problems solved building techniques involved completing bird instances keep builders name address backup envelope others should able provide further reference knowledgeable person wholl able get writer builder together Other writers questions require bit research happily have rather complete library back up answers library recently augmented review copy John C Fredriksen s book Flying Model Warplanes published Air Age Publishing 251 Danbury Rd Wilton CT 06897 telephone 800 243-6685 book has 8000 individual entries covering plans kits military aircraft models over world data base includes everything Peanuts Giant Scale covers entire history aviation John includes prices drawings kits accessories very great value comprehensive listing suppliers Mr Fredriksen intends update book three years book well worth $1495 price plus $3 shipping handling puts lot valuable interesting data fingertips Giant Scale builders believe old cliche Real airplanes have round engines two wings therell heck show Lake Guntersville Aerodrome Alabama September 5 6 7 Hank Iltzsch wrote tell about Aerodrome 92 gathering over 150 WW full-scale aircraft thatll complemented whole bunch Giant Scale models Great War era daily flying exhibitions will include Fokkers Albatroses SF-5s plus host other toothsome ancient fighters reconnaissance craft should some kind showWorld War air original cast Nicholas Madonia Palm Coast Florida posed interesting question sent photographs Aeromaster 150 model reverse-scale version Lou Andrewss venerable biplane Nick wondered bird appropriate column wrote assure him because Im guided IMAA definition Giant models its big un Im happy include pages Nick enlarged Aeromaster drawings 150% stuck Quadra 52 nose 79-in-span model duplicated Andrews lockbox construction originalto dismay turned out says model should have weighed 18 20 lb ended up weighing 25 lb because extra structure event big Aeromaster flies better original Great ideaenlarging proven model Giant dimensions Well leave month hint may reduce frustration factor around workbench trickier tasks model builders face fixing canopy windshield place transparent material useusually clear plasticis prone scratching Continued page 171 August1992 63 Left Hank lltzschs 113-scale Giant Sopwith Pup Right Sopwith Pups scale tail skid Hank Seekonk Massachusetts used Jim Kigers excellent drawings produce beauty currently resides Owls Head Museum Maine similar described above comparable models tape mere 12 bucks plus postage about half hour long Its available Astro cannot watch tape still believe Electric no good Please include SASE correspondence youd like reply Happy Quiet Summertime Electric Everyone RO OiantsldeVrios Continued page 63 Scratches unsightly theyre nonscale once glob glue drops windshield/canopy produces manner ugly language globs its good idea remove much glue possible before sets wait until residue dries Scratches globsfrom out techniques same Begin attacking glob/scratch some 400-grit sandpaper things out well can trying minimize size sanded area Work slowly carefully Next use finer grade paper 600-grit smooth out scratches earlier paper made Third using very soft cloth old T-shirts work well jewelers rouge available stick form polish out sandpaper scratches Finally use soft cloth lot elbow grease apply Brasso brass polish Depending severity blemish might able start midtechnique event conscientious effort should able restore models clear plastic parts pristine condition Keep big uns flying RC SoaringlBlakeslee Continued page 61 160-in-span super ships can ranged over area still seen However Brits use spotlanding bonus F31 will have same F3B landing tape big ships will disadvantage making landing points Choosing optimum glider depends lot weather Calm light conditions will favor floaters heavier faster ships will better windy weather rapidly moving thermals make prediction Id say popular all-around F3J glider will 30 35 meters wingspan have ailerons flaps computer radio controlled built light about l0-oz/sq-ft minimum wing loading capable carrying ballast bring wing loading up about 16 ozisq ft other words bigger F3B ship Ill have hand-towing technique equipment upcoming columns 171 continued page 176 August 1992 UNLEASH POWER WITHIN IZE its AWESOME Bigger Engine Won t Fit MORE POWER 5 WillBIGGER PROPS Over 4in toCOOL RUNNING Well w2000 NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels rid 75 stamped #10 SASE & $200 e PO Box 141 ord CT 06460 ivioael Diesel Technology Since 1975 Zs. L LATHES MILLS METALS EOOKS PRECISION INSTRUMENTS 7jT-- CQNPfETE CATALOG $200 100Gb stems --CAMP BELL TOOLS Co 2100 M Sob, Road beobogfi2d 00 45505 513 3228562 OOPUTEPIZED IPCPAFT PLOTS Technical Illustrations Suitable Framing Scde afting cud Scoriing S&vces 3 Views D-TECH SYSTEMS Cabk stoo APC PROPELLERS Sound Supression Design High Thrust Efficiency Long Fiber Advanced Composite Material Proven Performance US Masters US Nationals Canadian Nationals World Championships SPORTS SIZES 57x36x27x345678910$159 8x45678910$179 9x45678910$199 95x 45 lOx 345678910$229 11x3456789$249 115x 4 12 x 678$289 13x6$425 REVERSE PITCH PUSHER 9x6 10x6 7 8 11 x67$395 COMPETITION 63 x4 65x 37 78x 467 9 x 65 85 95x 65N 7N 75N 8N 85N 1O5x 45$395 11 xlO 11 1212W 1314 12x9 9W 1010W 11 uN 11512 12N 12513 13N 14 125x 9101111512 12513 13 x 910$795 135x 910125 13314 14 x 68101213 13514 144x 1051213 145x 14N 15 x 8 10111216x81012$1295 MULTIBLADE onent Propeller Systems 2-blade18081012$2200 20x6 10 12 14$2500 2208 10 12 14 16$3100 24010121416$3800 3-Blade17 1018 10 19 xli$3300 20x10121421x12$3700 22x10 12 14 16$4600 24x10 12 14 16$5500 Multi Blade Hubs2-Blade 16-19 dia$3000 2-Blade 20-21 dia$3500 2-Blade 22 dia$4000 2-Blade 24 dia$6000 3-Blade 17-19 dia$4500 3-Blade 20-21 dia$5500 3-Blade 22 dia$6500 3-Blade 24 dia$9000 Contact local hobby dealer first doesnt have what need order direct 916-661-6515 Manufactured Landing Produce PO So 939 Knights Landing CA e5e45 176 Model Aviation UNIVERSAL STRAP ON older engines muffler bolts 29-46 JT-40P $2196 61-61 JT-60P $2396 ASP 91-108 JT-A9IP $2496 Pitts-Style Mufflers UNIVERSAL BOLT ON side mounted engines Will fit 90% engines made after 1989 Easy attach Just bait muffler engine factory muffler baits bolts supp- muffler JT-4OPB 29-45 $2296 MAIL ORDUIS Picase add $250 UPS shipping Check MO Visa MC COD actepted Add $400 estra COD California residents add 9% saies tax RC SoaringlBlakeslee Continued page 171 Masters Soaring Space restrictions usually dont allow printing much way contest results Masters such special contest think contestants deserve recognized among top fliers hobby sure what doing flying will eventually influence competition flying report SWSA newsletter editor Don McColgan 1992 Masters Soaring competition opened Saturday March 21 Silent Wings Soaring Association SWSA field Covina California Thirtyfive top glider fliers braved spring rains participate 16 scheduled rounds tough competition Due rain eight Saturdays rounds completed three Sunday participate contest flier must have achieved LSF Level V Level IV contest points Level V must hold National record must have won major two-day national regional contest Saturday started three-minute Precision Duration warm-up followed four- seven- 10-minute triathalon Round five five-minute precision six seven-minute duration seven threeminute precision eight six-minute duration event landings either runway spot adding maximum 40 points rules made flying time paramount importance scoring precision rounds vesy steep Thirty seconds off goal resulted zero flight score storm clouds provided lots turbulence lift sink few showers well some gusty winds during some landings contest meant easy Round ended five perfect scores 1000 points six-place tie sixth scores 9946 close round eight Saturday Joe Wurts led iT-MIXUPMAX 91-1962996 JT-STSUPCOMO ST 61-75902750 JTST2SPST 2505-258950002996 JTBCXP OS MAX BOXi 3496 JT5T45PST 0-45003496 VERY OUIUT BOlTS DiiSEC1LYTO ENCINE MOONliNO BOLTS EXHAUST EXTENSION TUBINO ANt CLAMPS INCLUDED A/Nm U mm, 69681 points followed Daryl Perkins 69463 Dan Fink third 68334 points Sunday opener three-minute precision Round 10 another sevenminute precision duration last round four-minute precision three rounds required spot landings using eightfoot tapes divided four two-foot segments counting 10 20 30 40 points total 15 perfect rounds flown winner Joe Wurts earning five second place finisher Daryl Perkins earning four Wurts hit 11 perfect landings 11 flights popular airplane year Airtronics Legend 10 followed Falcon 9 popular brand transmitter Airtronics 25 19 Visions six radios used computer types equipment well some excellent eyesight allowed fliers venture long way field search lift Full camber control used top pilots Flaps ailerons helped make landings look easy gusty winds Tim Renaud Airtronics generously donated Sagitta 600 Olympic 650 kits workers raffle Hobby Dynamics donated JR dual transmitter case plus some JR hats Bob Massmann President NSS provided coffee mugs NSS T-shirts merchandise raffled off SWSA folks hosted contest provided labor well free coffee donuts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Joe Wurts Daryl Perkins Fred Weaver C George Larry Jolly Brad Clasen Jim Thomas Gary Anderson Steve Clasen Ben Clerx Skip Miller Craig Foxgord Myles Moran Don Edberg r Exhaust extensions worm drive mounting stral inClUded JT-6OPB 51-61 $2496 15George Joy 16SGeorge 17Mike Reagan 18JGeorge 19Tim Renaud 20Dan Fink 21Jim McCarthy 22Randy Spencer 23Don Vickers 24Todd Biliman 25Bob McGowan 26F Leppla 27Mike Fritz 28Steve Addis 29Don Tatum 30Ian Douglas 31Pete Russell 32Keith Kindrick 33John Brown 34Pete Carr 35Ray Olsen Finishing obechi letter printed above Brian Agnew mentioned gone obechi wing skins kits Bob Dodgson Mark Allen have switched also Asher Carmichaels article using obechi furniture veneers wing skins appeared May June columns received quite bit favorable comment So think obechi other veneers going seen more offer advantages over balsa available large sheets splicing isnt required ding resistant can finished just light lighter much expensive next question What exactly best way finish wood go right source Dave Acker Daves Wood Products probably modelers principal source obechi large sheets Dave kind enough drop letter include description own newly developed finishing method Before getting however let give address Daves Wood Products #7 Creekpark Ct Roswell GA 30076 telephone number 404 642-0645 Send SASE price list Now over Dave finishing system several ways finish surface obechi wings will outline ones have tried seem work well Undoubtedly other finishing systems will work try out different systemand worksplease let know will share others first two steps general instructions finishing obechi after has attached wing coreand after leading edges tips caps have added sanded 1 Sand obechi 150- 250-grit sandpaper 2 Vacuum wing use tack rag remove remaining dust Note use damp cloth rather tack rag Ruff Stuff$135 i Glue TipsAdd 20% total order shipping 4for$110 Lots Good Stuff Tee AppIied Design Corporation $310 11 L2fl3/ PO Box 3384 Torrance CA 90610$465 22 Mini Saw $925 $285 tough nails clean up water Color trimming can done after finishing spray painting application plastic film 3 Apply coat Flecto Varathane Diamond Finish buy Home Depot seal wood keep out water wet-sand subsequent coats apply using cheap foam brush 4 Next apply coat filler using old credit card can use Model Magic comparable filler Since Im cheap August1992 177 7 om Shapes Available Stay Tray $210 V intend use water-based finishes described below point wings can covered low-temperature film such Black Baron Use damp cloth right behind iron make sure film stuck wood following steps applied finishing system quick allows wood grain show Recently have several water-based urethane finishes available home woodworker finishes nontoxic virtually odorless wpack ts made high-qualify balsa plywood May flown 05 eleckic power 049 11 glow-engine power Pads instructions both versions included its compact Ready fly easily fits backseat car Offers solid big-plane pedonnance its small plane flies like 40 $4995 Accepts standard-size servosList Wingspan f 4 aches uu square mcnes WeIght 7 ouncesbare airframeSe yell hahhy dealer first deeset 22 28 ouncesready fly glow poweredstock SNAPPED ertler direct fi nnnepnmndv liv Iefeetric owsreiflInclude $250 S&H direct orders BATFERY MANAGEMENT System MOSFET nicad cycler $14995 MOSIET nicad ccler designed specilically planes boats helicopters 3 overnight/trickle outputs capable charging 1 to9 cells infinitely adjustable FIX overnight charge current ability discharge both FIX TX packs digital discharge timer 3 outputs allow simultaneous separate charging ofsur FIX TX AUXILIARY eg glow plug starter battetyl nicads Nicads will charge overnight rate 17 hours 4 minutes before automatically switching trickle rate Adjustable control allows charging FIX pack up 2000 mAli capacity TX output can discharge 8 9 cell packs 300 mA RX output can discharge 4 5 cell packs 300 500 mA True Constant Current sources used charge/discharge modes power up fiNS ONE will always come up overnight charge mode ensuring Itilly charged batteries event momentary 110 solt power loss Utilizing Current Detection Circuitry LEDs can illuminate current actually flowing out batteries Large digital display anti-glare filter shows fiX TX discharge times Unique CAPACITY CALCULATOR will allow milliampere-hour rating batteries determined Prepeid-dees MoneyOdetotCertttiedChects Snppnq & Handling $700 COO 0-dee Gash 0 Caditod Cheds collected delaety Add 0000 above amounts FACTORY DIRECT ONLY plces Spedficaloes Sabjed __________________________________________________________ Change Without notice DesIgned ad Manutactared LISA m m ...... Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Baflys Resort Hotel Casino Rti irday Sunday August 22-23 992 OB81 0 Ml 7992 Planes Trains Cars Boats Demonstrations Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free Sponsored Reno Radio Control Club AMA 0696 booth show information call Val Young 702/3S9-08 14 U U m m m m m m m U U U U U U P COOLOn BIGGEST SCOLE PLANS 0 novAe no,n Pioc, 0000k Art 5e C, 0C tOO PAGE CATALOG SCALE OOCOMEu0onton seonooc 07 COOLt 00CC OCt00 0009 Madto A. O,o5eo NC 0000 St St 202-5209 use Red Devil Time Spacklingagain Home Depot stuff will dry white thus leave fine white lines grain wing bothers mix some color filler before put wing get color local craft store called Ceramcoat Delta find flesh tone works well obechi can use coloring material compatible water-based paints Just mix enough color filler approximate color wood Spread filler thinly let dry few minutes scrape off excess going 450 angle credit card Let dry completely wet-sand back down wood 150- 250-grit paper What should remain just enough filler fill wood grain feel necessary repeat step Caution Make sure sanded surface completely dry before proceed next step 5 Use paper towel wipe thin coat sealer Varathane Let dry wet-sand Wipe off surface wet towel cloth let dry again Repeat step times like Just remember use paper towel will putting very thin light coats Wet-sand after application find four coats works fine can really get carried away trying furniture finish too much weight penalty have used above system Falcon 600 four coats finish added 125 oz weight just covered film would have added three ounces Some guys experimenting adding color pigment Varathane seems work out well fact has wing streaks blue red green looks like tie-dyed shirt sure hope never lands grasshell never find use fluorescent-colored film wing tips flaps apply reflecting silver strip along leading edge get flash ship turns sun Caution use some other brands finishes make sure compatible other testing concoction scrap piece woodpreferably open field away women children Super cautions 1 sanding finishing have adequate ventilation garage fan running doors windows open Protect lungs sanding wood 2 Always try out adhesives finishing materials scrap foam wood before use wings foam wood disappears goes up smoke try another product 3 use epoxy adhere wood cores its good idea put wax paper between obechi core beds Sometimes epoxy will bleed through obechi stick beds wings would certainly prove interesting doubt resultant lift-to178 Model Aviation RK ELECTRONICS IEINOVATWE ELECThONICS DepL 262 304 Faa Rae ttudaca 1411 03051 603-882-6022 mu Antiques Military Civilian Helicopters Sailplane IOver 3300 different20000 plus 3-view color FOTO-PAAKSIncluding KOKIJ-FAN drag ratio would give desired performance Note Some people mix microballoons epoxy apparently stops bleed-through problem provides lighter wing Another method coat inside face wood light coat waterbased urethane noted above Let dry use epoxy before apparently also helps using 3M 77 spray adhesive Another great product found Home Depot No dont own stock new sanding product called Rinsen Reuse NICSAND Inc stuff cloth-backed aluminum oxide bonded foam pad extra strength durability idea dust migrates through sanding surface foam backing can vacuumed washed away does clog can used over over Its available 60- 100- 150-grit use 150-grit exclusively working wings David B Fraser Scholarship Science Last month reported tragic death David Fraser crash Mooney Michael Selig coauthor Airfoils Low Speeds Soartech #8 David John Donovan sent letter telling scholarship fund named honor David Fraser family Fraser-Volpe Corp will make initial contribution fund Eligible recipients will selected student applicant pursuing studies either science engineering Memorial contributions endow fund may sent David B Fraser Scholarship Science Mr Jonathan Fraser 1335 Slayton Dr Maple Glen PA 19002 MARCS Symposium popular Madison Area RIC Societys National Sailplane Symposium scheduled October24 25 1992 will held Ramada Inn 3841 East Washington Ave Madison Wisconsin 53704 Call 608 244-2481 room reservations can arrive early usual day trip EAA Museum Oshkosh will Friday 23rd list speakers finalized write however symposium always interesting affair great windup flying season Its like Old Home Weekend Soaring set information contact Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 telephone 608 238-2321 rdlConover Continued page 83 10 Brush light thinned clear dope surfaces Sand fine paper Brush second coat Dont sand gripper area need good grip Dont worry about too much weight dope adds /2 gram need strength get maximum climb slick flying surfaces Now fun begins Three reasons CC-I makes good first flying training model 1 Its easy quick build repair 2 Its teaching tool shows tenderfoots adjust flying models key early success 3 Performance outstanding Can imagine effect Star Wars climb 10 times higher kids home Adjustments flight begin doing hand glides under mentors guidance could begine balancing model vee scissors CG point indicated plan its easier just test glide add spot clay nose Some will require no clay students picnic hand gliding models city council chambers too windy outside goal should get streaking tight spiral climb rolls out top may have bend slight amount down elevon rear wing opposite glide circle model must have glide circle youll lose downwind brush Try /32 right rudder glide turn 1h2 down elevon right rear wing starting trim should give safe left bank launch right glide circle kids get see what big difference small amount trim makes model flies model comes screaming down off top 9-G dive may have bend bit up elevon both sides Newtons laws paraphrased says reaction up elevon will push side wing down flight too loopy doesnt achieve much altitude try down elevon both sides prefer adjust main rear wing rudder sodacan adjuster strips help make fine trim adjustments stay put trimming phase ideal time teach students basics flight adjustment will apply flying models build future fullscale aircraft impact like teaching young person read write properly Both can have far-reaching effects rest lives Prelaunch catapult technique Make up catapult match fliers arm length Small kids need about seven-inch loop t/s4n FAI tan rubber 9 x 14-in dowel piece hard 14-in-sq balsa Longer arms can use nine-inch 1oop nine-inch catapult 10-inch loop 10-inch stick 1oop too long model will catch flop SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AD U 5InUInIA V OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIIT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT l/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1992 179 NEW PRODUCT NEW PRODUCT NEW PRODUCT NEW PRODUCT AIRFOIL DATA DISKS FOILED AGAINW Now popular demand shipping disks ready-made airfoils use FOILED AGAINIII MORE THAN 50 AIRFOIL DATA FILES ON EACH DISK IN NEW STANDARDIZED DATA FORMAT ILLUSTRATED 58-PAGE MANUAL WITH MULTIPLE PLOTS & COORDINATE DATA FOR EACH AIRFOIL Disk Selig-Donovan Eppler other Airfoils Disk B NACA Symmetric Cambered Airfoils EHRHRRH TOILED AGAIN VT 3D RI Ale ORDER YOUR COPIES NOW $2500 OVERSEAS UPPERS 53500 US PER RTSIR WATCH OUR ADS TSR NFl SOT OTHER DATA DISK RELEASES CYGNET Software 619 792-8021 3525 Del Mar Heights #2375 San Diego CA 92130 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE 9 Add soda-can adjuster strips No 8 pin catapult attachment point Coat thinly glue
Edition: Model Aviation - 1992/08
Page Numbers: 62, 63, 171, 176, 177, 178, 179
V RADIO CONTROL John de Vries 4610 Moffat Lane Colorado Springs CO 80915 WERE GOING start months column endthe back end Giant Scale model Dont kiiow youve noticed majority Big Birds drag tails Except used occasional warbird tricycle gears few far between leaves us couple ways keep rudder getting ground offa tail skid tail wheel Being devoted authentic representations full-size airplanes often stuck what full-scale craft used support rear fuselage general tail skids used during era airports nothing grass fields Skids worked well grass functioned brakes early birds didnt have binders wheelsas did paved runways came onto scene tail wheels came vogue Pilots found concrete tendency wear tail skid shoes rapidly make takeoffs difficult because rear ends planes would slip slide hard surfaces late 1930s aircraft tail wheels Giant Scale modelers have big advantage comes duplicating tail supports replicas can copy full-size arrangements last nut bolt scale parts big enough detailed reproduction World War tail skids little pivoted devices made hardwood metal pivot bar mounted across lower longerons upper end skid attached hungee rubber cord added bit spring action lower end shod metal shoe Some skids made leaves spring steel gained degree shock absorption skid itself Ground maneuverability fixed skid marginal best often couple wing walkers needed help pilot taxi Alone pilot faced delicate task blasting throttle elevator neutral rudder full over direction wanted turn Too much throttle propeller got lot shorter hit ground As tail skids improved 1 920s rounded cast metal shoes used could edged right left hard ground improved pilots ability slide around bit throttle lot rudder Eventually aircraft designers came up steerable tail skids attached rudder cables really helped ground maneuverability As noted above tail skids paved runways dont mix Takeoffs dicey model has fixed skid because dont have much directional control until airspeed great enough permit rudder effective Too-rapid application throttle early takeoff roll sure produce ground loop model needs tail skid can choose several remedies eliminate problems posed concrete asphalt runways Scale purist tail skid may split small tail wheel inserted properly done wheel will almost invisible its lower edge projecting doesnt take much horseback engineering develop invisible tail skid steering mechanism can contained rear fuselage Either technique will ease takeoff directional control woes maintaining scale appearance elaborate system skid-equipped birdsand has full-scale counterpartis build two tail skid modules Either can bolted steering mechanism within fuselage provide plug-in skid tail wheel youre flying off grass scale skid would used field has runway loosening setscrew replacing skid tail wheel simple operation steering mechanism can include necessary shock absorption Either 62 Model Aviation Nicholas Madonias Aeromaster 150 150% enlargement Lou Andrewss Aeromaster using Quadra 52 Nicks next project will Giant Beech Bonanza ipIane leti standard Aeromaster right Madonias Want version inherited excellent flying characteristics original model IJICK icnenor 15-scale IIflSUfl L0 I8KOTT roll LuCK uia iriena DI dUnn S IrOlil Chino Hills California designed scratch built WW II liaison aircraft model AFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $500 BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion andComputer Designed3 Axis Control Reserve Grand Champion UltralightPart 103 UltralightEasy Construction 1989 Sun-N-Fun Fly-In* Wood Construction TEAM INC BOX 338M BRADY VILLE TN 37026 615 765-5397 WALNUT CA91789 7145941349 594 1471 CALL OR WRITE FOR FREE BROCHURE heavy-duty rubberbands better yet metal spring can used Screen door springs seem work well either singly dual installations can cut needed length pair wire cutters Would believe Two-thirds letters yours truly receives readers column about photographs beautiful Giant Scale models picture generate tremendous amount interest writer usually wants get touch models builderto learn drawings used what special building problems solved building techniques involved completing bird instances keep builders name address backup envelope others should able provide further reference knowledgeable person wholl able get writer builder together Other writers questions require bit research happily have rather complete library back up answers library recently augmented review copy John C Fredriksen s book Flying Model Warplanes published Air Age Publishing 251 Danbury Rd Wilton CT 06897 telephone 800 243-6685 book has 8000 individual entries covering plans kits military aircraft models over world data base includes everything Peanuts Giant Scale covers entire history aviation John includes prices drawings kits accessories very great value comprehensive listing suppliers Mr Fredriksen intends update book three years book well worth $1495 price plus $3 shipping handling puts lot valuable interesting data fingertips Giant Scale builders believe old cliche Real airplanes have round engines two wings therell heck show Lake Guntersville Aerodrome Alabama September 5 6 7 Hank Iltzsch wrote tell about Aerodrome 92 gathering over 150 WW full-scale aircraft thatll complemented whole bunch Giant Scale models Great War era daily flying exhibitions will include Fokkers Albatroses SF-5s plus host other toothsome ancient fighters reconnaissance craft should some kind showWorld War air original cast Nicholas Madonia Palm Coast Florida posed interesting question sent photographs Aeromaster 150 model reverse-scale version Lou Andrewss venerable biplane Nick wondered bird appropriate column wrote assure him because Im guided IMAA definition Giant models its big un Im happy include pages Nick enlarged Aeromaster drawings 150% stuck Quadra 52 nose 79-in-span model duplicated Andrews lockbox construction originalto dismay turned out says model should have weighed 18 20 lb ended up weighing 25 lb because extra structure event big Aeromaster flies better original Great ideaenlarging proven model Giant dimensions Well leave month hint may reduce frustration factor around workbench trickier tasks model builders face fixing canopy windshield place transparent material useusually clear plasticis prone scratching Continued page 171 August1992 63 Left Hank lltzschs 113-scale Giant Sopwith Pup Right Sopwith Pups scale tail skid Hank Seekonk Massachusetts used Jim Kigers excellent drawings produce beauty currently resides Owls Head Museum Maine similar described above comparable models tape mere 12 bucks plus postage about half hour long Its available Astro cannot watch tape still believe Electric no good Please include SASE correspondence youd like reply Happy Quiet Summertime Electric Everyone RO OiantsldeVrios Continued page 63 Scratches unsightly theyre nonscale once glob glue drops windshield/canopy produces manner ugly language globs its good idea remove much glue possible before sets wait until residue dries Scratches globsfrom out techniques same Begin attacking glob/scratch some 400-grit sandpaper things out well can trying minimize size sanded area Work slowly carefully Next use finer grade paper 600-grit smooth out scratches earlier paper made Third using very soft cloth old T-shirts work well jewelers rouge available stick form polish out sandpaper scratches Finally use soft cloth lot elbow grease apply Brasso brass polish Depending severity blemish might able start midtechnique event conscientious effort should able restore models clear plastic parts pristine condition Keep big uns flying RC SoaringlBlakeslee Continued page 61 160-in-span super ships can ranged over area still seen However Brits use spotlanding bonus F31 will have same F3B landing tape big ships will disadvantage making landing points Choosing optimum glider depends lot weather Calm light conditions will favor floaters heavier faster ships will better windy weather rapidly moving thermals make prediction Id say popular all-around F3J glider will 30 35 meters wingspan have ailerons flaps computer radio controlled built light about l0-oz/sq-ft minimum wing loading capable carrying ballast bring wing loading up about 16 ozisq ft other words bigger F3B ship Ill have hand-towing technique equipment upcoming columns 171 continued page 176 August 1992 UNLEASH POWER WITHIN IZE its AWESOME Bigger Engine Won t Fit MORE POWER 5 WillBIGGER PROPS Over 4in toCOOL RUNNING Well w2000 NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels rid 75 stamped #10 SASE & $200 e PO Box 141 ord CT 06460 ivioael Diesel Technology Since 1975 Zs. L LATHES MILLS METALS EOOKS PRECISION INSTRUMENTS 7jT-- CQNPfETE CATALOG $200 100Gb stems --CAMP BELL TOOLS Co 2100 M Sob, Road beobogfi2d 00 45505 513 3228562 OOPUTEPIZED IPCPAFT PLOTS Technical Illustrations Suitable Framing Scde afting cud Scoriing S&vces 3 Views D-TECH SYSTEMS Cabk stoo APC PROPELLERS Sound Supression Design High Thrust Efficiency Long Fiber Advanced Composite Material Proven Performance US Masters US Nationals Canadian Nationals World Championships SPORTS SIZES 57x36x27x345678910$159 8x45678910$179 9x45678910$199 95x 45 lOx 345678910$229 11x3456789$249 115x 4 12 x 678$289 13x6$425 REVERSE PITCH PUSHER 9x6 10x6 7 8 11 x67$395 COMPETITION 63 x4 65x 37 78x 467 9 x 65 85 95x 65N 7N 75N 8N 85N 1O5x 45$395 11 xlO 11 1212W 1314 12x9 9W 1010W 11 uN 11512 12N 12513 13N 14 125x 9101111512 12513 13 x 910$795 135x 910125 13314 14 x 68101213 13514 144x 1051213 145x 14N 15 x 8 10111216x81012$1295 MULTIBLADE onent Propeller Systems 2-blade18081012$2200 20x6 10 12 14$2500 2208 10 12 14 16$3100 24010121416$3800 3-Blade17 1018 10 19 xli$3300 20x10121421x12$3700 22x10 12 14 16$4600 24x10 12 14 16$5500 Multi Blade Hubs2-Blade 16-19 dia$3000 2-Blade 20-21 dia$3500 2-Blade 22 dia$4000 2-Blade 24 dia$6000 3-Blade 17-19 dia$4500 3-Blade 20-21 dia$5500 3-Blade 22 dia$6500 3-Blade 24 dia$9000 Contact local hobby dealer first doesnt have what need order direct 916-661-6515 Manufactured Landing Produce PO So 939 Knights Landing CA e5e45 176 Model Aviation UNIVERSAL STRAP ON older engines muffler bolts 29-46 JT-40P $2196 61-61 JT-60P $2396 ASP 91-108 JT-A9IP $2496 Pitts-Style Mufflers UNIVERSAL BOLT ON side mounted engines Will fit 90% engines made after 1989 Easy attach Just bait muffler engine factory muffler baits bolts supp- muffler JT-4OPB 29-45 $2296 MAIL ORDUIS Picase add $250 UPS shipping Check MO Visa MC COD actepted Add $400 estra COD California residents add 9% saies tax RC SoaringlBlakeslee Continued page 171 Masters Soaring Space restrictions usually dont allow printing much way contest results Masters such special contest think contestants deserve recognized among top fliers hobby sure what doing flying will eventually influence competition flying report SWSA newsletter editor Don McColgan 1992 Masters Soaring competition opened Saturday March 21 Silent Wings Soaring Association SWSA field Covina California Thirtyfive top glider fliers braved spring rains participate 16 scheduled rounds tough competition Due rain eight Saturdays rounds completed three Sunday participate contest flier must have achieved LSF Level V Level IV contest points Level V must hold National record must have won major two-day national regional contest Saturday started three-minute Precision Duration warm-up followed four- seven- 10-minute triathalon Round five five-minute precision six seven-minute duration seven threeminute precision eight six-minute duration event landings either runway spot adding maximum 40 points rules made flying time paramount importance scoring precision rounds vesy steep Thirty seconds off goal resulted zero flight score storm clouds provided lots turbulence lift sink few showers well some gusty winds during some landings contest meant easy Round ended five perfect scores 1000 points six-place tie sixth scores 9946 close round eight Saturday Joe Wurts led iT-MIXUPMAX 91-1962996 JT-STSUPCOMO ST 61-75902750 JTST2SPST 2505-258950002996 JTBCXP OS MAX BOXi 3496 JT5T45PST 0-45003496 VERY OUIUT BOlTS DiiSEC1LYTO ENCINE MOONliNO BOLTS EXHAUST EXTENSION TUBINO ANt CLAMPS INCLUDED A/Nm U mm, 69681 points followed Daryl Perkins 69463 Dan Fink third 68334 points Sunday opener three-minute precision Round 10 another sevenminute precision duration last round four-minute precision three rounds required spot landings using eightfoot tapes divided four two-foot segments counting 10 20 30 40 points total 15 perfect rounds flown winner Joe Wurts earning five second place finisher Daryl Perkins earning four Wurts hit 11 perfect landings 11 flights popular airplane year Airtronics Legend 10 followed Falcon 9 popular brand transmitter Airtronics 25 19 Visions six radios used computer types equipment well some excellent eyesight allowed fliers venture long way field search lift Full camber control used top pilots Flaps ailerons helped make landings look easy gusty winds Tim Renaud Airtronics generously donated Sagitta 600 Olympic 650 kits workers raffle Hobby Dynamics donated JR dual transmitter case plus some JR hats Bob Massmann President NSS provided coffee mugs NSS T-shirts merchandise raffled off SWSA folks hosted contest provided labor well free coffee donuts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Joe Wurts Daryl Perkins Fred Weaver C George Larry Jolly Brad Clasen Jim Thomas Gary Anderson Steve Clasen Ben Clerx Skip Miller Craig Foxgord Myles Moran Don Edberg r Exhaust extensions worm drive mounting stral inClUded JT-6OPB 51-61 $2496 15George Joy 16SGeorge 17Mike Reagan 18JGeorge 19Tim Renaud 20Dan Fink 21Jim McCarthy 22Randy Spencer 23Don Vickers 24Todd Biliman 25Bob McGowan 26F Leppla 27Mike Fritz 28Steve Addis 29Don Tatum 30Ian Douglas 31Pete Russell 32Keith Kindrick 33John Brown 34Pete Carr 35Ray Olsen Finishing obechi letter printed above Brian Agnew mentioned gone obechi wing skins kits Bob Dodgson Mark Allen have switched also Asher Carmichaels article using obechi furniture veneers wing skins appeared May June columns received quite bit favorable comment So think obechi other veneers going seen more offer advantages over balsa available large sheets splicing isnt required ding resistant can finished just light lighter much expensive next question What exactly best way finish wood go right source Dave Acker Daves Wood Products probably modelers principal source obechi large sheets Dave kind enough drop letter include description own newly developed finishing method Before getting however let give address Daves Wood Products #7 Creekpark Ct Roswell GA 30076 telephone number 404 642-0645 Send SASE price list Now over Dave finishing system several ways finish surface obechi wings will outline ones have tried seem work well Undoubtedly other finishing systems will work try out different systemand worksplease let know will share others first two steps general instructions finishing obechi after has attached wing coreand after leading edges tips caps have added sanded 1 Sand obechi 150- 250-grit sandpaper 2 Vacuum wing use tack rag remove remaining dust Note use damp cloth rather tack rag Ruff Stuff$135 i Glue TipsAdd 20% total order shipping 4for$110 Lots Good Stuff Tee AppIied Design Corporation $310 11 L2fl3/ PO Box 3384 Torrance CA 90610$465 22 Mini Saw $925 $285 tough nails clean up water Color trimming can done after finishing spray painting application plastic film 3 Apply coat Flecto Varathane Diamond Finish buy Home Depot seal wood keep out water wet-sand subsequent coats apply using cheap foam brush 4 Next apply coat filler using old credit card can use Model Magic comparable filler Since Im cheap August1992 177 7 om Shapes Available Stay Tray $210 V intend use water-based finishes described below point wings can covered low-temperature film such Black Baron Use damp cloth right behind iron make sure film stuck wood following steps applied finishing system quick allows wood grain show Recently have several water-based urethane finishes available home woodworker finishes nontoxic virtually odorless wpack ts made high-qualify balsa plywood May flown 05 eleckic power 049 11 glow-engine power Pads instructions both versions included its compact Ready fly easily fits backseat car Offers solid big-plane pedonnance its small plane flies like 40 $4995 Accepts standard-size servosList Wingspan f 4 aches uu square mcnes WeIght 7 ouncesbare airframeSe yell hahhy dealer first deeset 22 28 ouncesready fly glow poweredstock SNAPPED ertler direct fi nnnepnmndv liv Iefeetric owsreiflInclude $250 S&H direct orders BATFERY MANAGEMENT System MOSFET nicad cycler $14995 MOSIET nicad ccler designed specilically planes boats helicopters 3 overnight/trickle outputs capable charging 1 to9 cells infinitely adjustable FIX overnight charge current ability discharge both FIX TX packs digital discharge timer 3 outputs allow simultaneous separate charging ofsur FIX TX AUXILIARY eg glow plug starter battetyl nicads Nicads will charge overnight rate 17 hours 4 minutes before automatically switching trickle rate Adjustable control allows charging FIX pack up 2000 mAli capacity TX output can discharge 8 9 cell packs 300 mA RX output can discharge 4 5 cell packs 300 500 mA True Constant Current sources used charge/discharge modes power up fiNS ONE will always come up overnight charge mode ensuring Itilly charged batteries event momentary 110 solt power loss Utilizing Current Detection Circuitry LEDs can illuminate current actually flowing out batteries Large digital display anti-glare filter shows fiX TX discharge times Unique CAPACITY CALCULATOR will allow milliampere-hour rating batteries determined Prepeid-dees MoneyOdetotCertttiedChects Snppnq & Handling $700 COO 0-dee Gash 0 Caditod Cheds collected delaety Add 0000 above amounts FACTORY DIRECT ONLY plces Spedficaloes Sabjed __________________________________________________________ Change Without notice DesIgned ad Manutactared LISA m m ...... Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Baflys Resort Hotel Casino Rti irday Sunday August 22-23 992 OB81 0 Ml 7992 Planes Trains Cars Boats Demonstrations Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free Sponsored Reno Radio Control Club AMA 0696 booth show information call Val Young 702/3S9-08 14 U U m m m m m m m U U U U U U P COOLOn BIGGEST SCOLE PLANS 0 novAe no,n Pioc, 0000k Art 5e C, 0C tOO PAGE CATALOG SCALE OOCOMEu0onton seonooc 07 COOLt 00CC OCt00 0009 Madto A. O,o5eo NC 0000 St St 202-5209 use Red Devil Time Spacklingagain Home Depot stuff will dry white thus leave fine white lines grain wing bothers mix some color filler before put wing get color local craft store called Ceramcoat Delta find flesh tone works well obechi can use coloring material compatible water-based paints Just mix enough color filler approximate color wood Spread filler thinly let dry few minutes scrape off excess going 450 angle credit card Let dry completely wet-sand back down wood 150- 250-grit paper What should remain just enough filler fill wood grain feel necessary repeat step Caution Make sure sanded surface completely dry before proceed next step 5 Use paper towel wipe thin coat sealer Varathane Let dry wet-sand Wipe off surface wet towel cloth let dry again Repeat step times like Just remember use paper towel will putting very thin light coats Wet-sand after application find four coats works fine can really get carried away trying furniture finish too much weight penalty have used above system Falcon 600 four coats finish added 125 oz weight just covered film would have added three ounces Some guys experimenting adding color pigment Varathane seems work out well fact has wing streaks blue red green looks like tie-dyed shirt sure hope never lands grasshell never find use fluorescent-colored film wing tips flaps apply reflecting silver strip along leading edge get flash ship turns sun Caution use some other brands finishes make sure compatible other testing concoction scrap piece woodpreferably open field away women children Super cautions 1 sanding finishing have adequate ventilation garage fan running doors windows open Protect lungs sanding wood 2 Always try out adhesives finishing materials scrap foam wood before use wings foam wood disappears goes up smoke try another product 3 use epoxy adhere wood cores its good idea put wax paper between obechi core beds Sometimes epoxy will bleed through obechi stick beds wings would certainly prove interesting doubt resultant lift-to178 Model Aviation RK ELECTRONICS IEINOVATWE ELECThONICS DepL 262 304 Faa Rae ttudaca 1411 03051 603-882-6022 mu Antiques Military Civilian Helicopters Sailplane IOver 3300 different20000 plus 3-view color FOTO-PAAKSIncluding KOKIJ-FAN drag ratio would give desired performance Note Some people mix microballoons epoxy apparently stops bleed-through problem provides lighter wing Another method coat inside face wood light coat waterbased urethane noted above Let dry use epoxy before apparently also helps using 3M 77 spray adhesive Another great product found Home Depot No dont own stock new sanding product called Rinsen Reuse NICSAND Inc stuff cloth-backed aluminum oxide bonded foam pad extra strength durability idea dust migrates through sanding surface foam backing can vacuumed washed away does clog can used over over Its available 60- 100- 150-grit use 150-grit exclusively working wings David B Fraser Scholarship Science Last month reported tragic death David Fraser crash Mooney Michael Selig coauthor Airfoils Low Speeds Soartech #8 David John Donovan sent letter telling scholarship fund named honor David Fraser family Fraser-Volpe Corp will make initial contribution fund Eligible recipients will selected student applicant pursuing studies either science engineering Memorial contributions endow fund may sent David B Fraser Scholarship Science Mr Jonathan Fraser 1335 Slayton Dr Maple Glen PA 19002 MARCS Symposium popular Madison Area RIC Societys National Sailplane Symposium scheduled October24 25 1992 will held Ramada Inn 3841 East Washington Ave Madison Wisconsin 53704 Call 608 244-2481 room reservations can arrive early usual day trip EAA Museum Oshkosh will Friday 23rd list speakers finalized write however symposium always interesting affair great windup flying season Its like Old Home Weekend Soaring set information contact Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 telephone 608 238-2321 rdlConover Continued page 83 10 Brush light thinned clear dope surfaces Sand fine paper Brush second coat Dont sand gripper area need good grip Dont worry about too much weight dope adds /2 gram need strength get maximum climb slick flying surfaces Now fun begins Three reasons CC-I makes good first flying training model 1 Its easy quick build repair 2 Its teaching tool shows tenderfoots adjust flying models key early success 3 Performance outstanding Can imagine effect Star Wars climb 10 times higher kids home Adjustments flight begin doing hand glides under mentors guidance could begine balancing model vee scissors CG point indicated plan its easier just test glide add spot clay nose Some will require no clay students picnic hand gliding models city council chambers too windy outside goal should get streaking tight spiral climb rolls out top may have bend slight amount down elevon rear wing opposite glide circle model must have glide circle youll lose downwind brush Try /32 right rudder glide turn 1h2 down elevon right rear wing starting trim should give safe left bank launch right glide circle kids get see what big difference small amount trim makes model flies model comes screaming down off top 9-G dive may have bend bit up elevon both sides Newtons laws paraphrased says reaction up elevon will push side wing down flight too loopy doesnt achieve much altitude try down elevon both sides prefer adjust main rear wing rudder sodacan adjuster strips help make fine trim adjustments stay put trimming phase ideal time teach students basics flight adjustment will apply flying models build future fullscale aircraft impact like teaching young person read write properly Both can have far-reaching effects rest lives Prelaunch catapult technique Make up catapult match fliers arm length Small kids need about seven-inch loop t/s4n FAI tan rubber 9 x 14-in dowel piece hard 14-in-sq balsa Longer arms can use nine-inch 1oop nine-inch catapult 10-inch loop 10-inch stick 1oop too long model will catch flop SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AD U 5InUInIA V OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIIT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT l/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1992 179 NEW PRODUCT NEW PRODUCT NEW PRODUCT NEW PRODUCT AIRFOIL DATA DISKS FOILED AGAINW Now popular demand shipping disks ready-made airfoils use FOILED AGAINIII MORE THAN 50 AIRFOIL DATA FILES ON EACH DISK IN NEW STANDARDIZED DATA FORMAT ILLUSTRATED 58-PAGE MANUAL WITH MULTIPLE PLOTS & COORDINATE DATA FOR EACH AIRFOIL Disk Selig-Donovan Eppler other Airfoils Disk B NACA Symmetric Cambered Airfoils EHRHRRH TOILED AGAIN VT 3D RI Ale ORDER YOUR COPIES NOW $2500 OVERSEAS UPPERS 53500 US PER RTSIR WATCH OUR ADS TSR NFl SOT OTHER DATA DISK RELEASES CYGNET Software 619 792-8021 3525 Del Mar Heights #2375 San Diego CA 92130 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE 9 Add soda-can adjuster strips No 8 pin catapult attachment point Coat thinly glue
Edition: Model Aviation - 1992/08
Page Numbers: 62, 63, 171, 176, 177, 178, 179
V RADIO CONTROL John de Vries 4610 Moffat Lane Colorado Springs CO 80915 WERE GOING start months column endthe back end Giant Scale model Dont kiiow youve noticed majority Big Birds drag tails Except used occasional warbird tricycle gears few far between leaves us couple ways keep rudder getting ground offa tail skid tail wheel Being devoted authentic representations full-size airplanes often stuck what full-scale craft used support rear fuselage general tail skids used during era airports nothing grass fields Skids worked well grass functioned brakes early birds didnt have binders wheelsas did paved runways came onto scene tail wheels came vogue Pilots found concrete tendency wear tail skid shoes rapidly make takeoffs difficult because rear ends planes would slip slide hard surfaces late 1930s aircraft tail wheels Giant Scale modelers have big advantage comes duplicating tail supports replicas can copy full-size arrangements last nut bolt scale parts big enough detailed reproduction World War tail skids little pivoted devices made hardwood metal pivot bar mounted across lower longerons upper end skid attached hungee rubber cord added bit spring action lower end shod metal shoe Some skids made leaves spring steel gained degree shock absorption skid itself Ground maneuverability fixed skid marginal best often couple wing walkers needed help pilot taxi Alone pilot faced delicate task blasting throttle elevator neutral rudder full over direction wanted turn Too much throttle propeller got lot shorter hit ground As tail skids improved 1 920s rounded cast metal shoes used could edged right left hard ground improved pilots ability slide around bit throttle lot rudder Eventually aircraft designers came up steerable tail skids attached rudder cables really helped ground maneuverability As noted above tail skids paved runways dont mix Takeoffs dicey model has fixed skid because dont have much directional control until airspeed great enough permit rudder effective Too-rapid application throttle early takeoff roll sure produce ground loop model needs tail skid can choose several remedies eliminate problems posed concrete asphalt runways Scale purist tail skid may split small tail wheel inserted properly done wheel will almost invisible its lower edge projecting doesnt take much horseback engineering develop invisible tail skid steering mechanism can contained rear fuselage Either technique will ease takeoff directional control woes maintaining scale appearance elaborate system skid-equipped birdsand has full-scale counterpartis build two tail skid modules Either can bolted steering mechanism within fuselage provide plug-in skid tail wheel youre flying off grass scale skid would used field has runway loosening setscrew replacing skid tail wheel simple operation steering mechanism can include necessary shock absorption Either 62 Model Aviation Nicholas Madonias Aeromaster 150 150% enlargement Lou Andrewss Aeromaster using Quadra 52 Nicks next project will Giant Beech Bonanza ipIane leti standard Aeromaster right Madonias Want version inherited excellent flying characteristics original model IJICK icnenor 15-scale IIflSUfl L0 I8KOTT roll LuCK uia iriena DI dUnn S IrOlil Chino Hills California designed scratch built WW II liaison aircraft model AFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $500 BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion andComputer Designed3 Axis Control Reserve Grand Champion UltralightPart 103 UltralightEasy Construction 1989 Sun-N-Fun Fly-In* Wood Construction TEAM INC BOX 338M BRADY VILLE TN 37026 615 765-5397 WALNUT CA91789 7145941349 594 1471 CALL OR WRITE FOR FREE BROCHURE heavy-duty rubberbands better yet metal spring can used Screen door springs seem work well either singly dual installations can cut needed length pair wire cutters Would believe Two-thirds letters yours truly receives readers column about photographs beautiful Giant Scale models picture generate tremendous amount interest writer usually wants get touch models builderto learn drawings used what special building problems solved building techniques involved completing bird instances keep builders name address backup envelope others should able provide further reference knowledgeable person wholl able get writer builder together Other writers questions require bit research happily have rather complete library back up answers library recently augmented review copy John C Fredriksen s book Flying Model Warplanes published Air Age Publishing 251 Danbury Rd Wilton CT 06897 telephone 800 243-6685 book has 8000 individual entries covering plans kits military aircraft models over world data base includes everything Peanuts Giant Scale covers entire history aviation John includes prices drawings kits accessories very great value comprehensive listing suppliers Mr Fredriksen intends update book three years book well worth $1495 price plus $3 shipping handling puts lot valuable interesting data fingertips Giant Scale builders believe old cliche Real airplanes have round engines two wings therell heck show Lake Guntersville Aerodrome Alabama September 5 6 7 Hank Iltzsch wrote tell about Aerodrome 92 gathering over 150 WW full-scale aircraft thatll complemented whole bunch Giant Scale models Great War era daily flying exhibitions will include Fokkers Albatroses SF-5s plus host other toothsome ancient fighters reconnaissance craft should some kind showWorld War air original cast Nicholas Madonia Palm Coast Florida posed interesting question sent photographs Aeromaster 150 model reverse-scale version Lou Andrewss venerable biplane Nick wondered bird appropriate column wrote assure him because Im guided IMAA definition Giant models its big un Im happy include pages Nick enlarged Aeromaster drawings 150% stuck Quadra 52 nose 79-in-span model duplicated Andrews lockbox construction originalto dismay turned out says model should have weighed 18 20 lb ended up weighing 25 lb because extra structure event big Aeromaster flies better original Great ideaenlarging proven model Giant dimensions Well leave month hint may reduce frustration factor around workbench trickier tasks model builders face fixing canopy windshield place transparent material useusually clear plasticis prone scratching Continued page 171 August1992 63 Left Hank lltzschs 113-scale Giant Sopwith Pup Right Sopwith Pups scale tail skid Hank Seekonk Massachusetts used Jim Kigers excellent drawings produce beauty currently resides Owls Head Museum Maine similar described above comparable models tape mere 12 bucks plus postage about half hour long Its available Astro cannot watch tape still believe Electric no good Please include SASE correspondence youd like reply Happy Quiet Summertime Electric Everyone RO OiantsldeVrios Continued page 63 Scratches unsightly theyre nonscale once glob glue drops windshield/canopy produces manner ugly language globs its good idea remove much glue possible before sets wait until residue dries Scratches globsfrom out techniques same Begin attacking glob/scratch some 400-grit sandpaper things out well can trying minimize size sanded area Work slowly carefully Next use finer grade paper 600-grit smooth out scratches earlier paper made Third using very soft cloth old T-shirts work well jewelers rouge available stick form polish out sandpaper scratches Finally use soft cloth lot elbow grease apply Brasso brass polish Depending severity blemish might able start midtechnique event conscientious effort should able restore models clear plastic parts pristine condition Keep big uns flying RC SoaringlBlakeslee Continued page 61 160-in-span super ships can ranged over area still seen However Brits use spotlanding bonus F31 will have same F3B landing tape big ships will disadvantage making landing points Choosing optimum glider depends lot weather Calm light conditions will favor floaters heavier faster ships will better windy weather rapidly moving thermals make prediction Id say popular all-around F3J glider will 30 35 meters wingspan have ailerons flaps computer radio controlled built light about l0-oz/sq-ft minimum wing loading capable carrying ballast bring wing loading up about 16 ozisq ft other words bigger F3B ship Ill have hand-towing technique equipment upcoming columns 171 continued page 176 August 1992 UNLEASH POWER WITHIN IZE its AWESOME Bigger Engine Won t Fit MORE POWER 5 WillBIGGER PROPS Over 4in toCOOL RUNNING Well w2000 NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels rid 75 stamped #10 SASE & $200 e PO Box 141 ord CT 06460 ivioael Diesel Technology Since 1975 Zs. L LATHES MILLS METALS EOOKS PRECISION INSTRUMENTS 7jT-- CQNPfETE CATALOG $200 100Gb stems --CAMP BELL TOOLS Co 2100 M Sob, Road beobogfi2d 00 45505 513 3228562 OOPUTEPIZED IPCPAFT PLOTS Technical Illustrations Suitable Framing Scde afting cud Scoriing S&vces 3 Views D-TECH SYSTEMS Cabk stoo APC PROPELLERS Sound Supression Design High Thrust Efficiency Long Fiber Advanced Composite Material Proven Performance US Masters US Nationals Canadian Nationals World Championships SPORTS SIZES 57x36x27x345678910$159 8x45678910$179 9x45678910$199 95x 45 lOx 345678910$229 11x3456789$249 115x 4 12 x 678$289 13x6$425 REVERSE PITCH PUSHER 9x6 10x6 7 8 11 x67$395 COMPETITION 63 x4 65x 37 78x 467 9 x 65 85 95x 65N 7N 75N 8N 85N 1O5x 45$395 11 xlO 11 1212W 1314 12x9 9W 1010W 11 uN 11512 12N 12513 13N 14 125x 9101111512 12513 13 x 910$795 135x 910125 13314 14 x 68101213 13514 144x 1051213 145x 14N 15 x 8 10111216x81012$1295 MULTIBLADE onent Propeller Systems 2-blade18081012$2200 20x6 10 12 14$2500 2208 10 12 14 16$3100 24010121416$3800 3-Blade17 1018 10 19 xli$3300 20x10121421x12$3700 22x10 12 14 16$4600 24x10 12 14 16$5500 Multi Blade Hubs2-Blade 16-19 dia$3000 2-Blade 20-21 dia$3500 2-Blade 22 dia$4000 2-Blade 24 dia$6000 3-Blade 17-19 dia$4500 3-Blade 20-21 dia$5500 3-Blade 22 dia$6500 3-Blade 24 dia$9000 Contact local hobby dealer first doesnt have what need order direct 916-661-6515 Manufactured Landing Produce PO So 939 Knights Landing CA e5e45 176 Model Aviation UNIVERSAL STRAP ON older engines muffler bolts 29-46 JT-40P $2196 61-61 JT-60P $2396 ASP 91-108 JT-A9IP $2496 Pitts-Style Mufflers UNIVERSAL BOLT ON side mounted engines Will fit 90% engines made after 1989 Easy attach Just bait muffler engine factory muffler baits bolts supp- muffler JT-4OPB 29-45 $2296 MAIL ORDUIS Picase add $250 UPS shipping Check MO Visa MC COD actepted Add $400 estra COD California residents add 9% saies tax RC SoaringlBlakeslee Continued page 171 Masters Soaring Space restrictions usually dont allow printing much way contest results Masters such special contest think contestants deserve recognized among top fliers hobby sure what doing flying will eventually influence competition flying report SWSA newsletter editor Don McColgan 1992 Masters Soaring competition opened Saturday March 21 Silent Wings Soaring Association SWSA field Covina California Thirtyfive top glider fliers braved spring rains participate 16 scheduled rounds tough competition Due rain eight Saturdays rounds completed three Sunday participate contest flier must have achieved LSF Level V Level IV contest points Level V must hold National record must have won major two-day national regional contest Saturday started three-minute Precision Duration warm-up followed four- seven- 10-minute triathalon Round five five-minute precision six seven-minute duration seven threeminute precision eight six-minute duration event landings either runway spot adding maximum 40 points rules made flying time paramount importance scoring precision rounds vesy steep Thirty seconds off goal resulted zero flight score storm clouds provided lots turbulence lift sink few showers well some gusty winds during some landings contest meant easy Round ended five perfect scores 1000 points six-place tie sixth scores 9946 close round eight Saturday Joe Wurts led iT-MIXUPMAX 91-1962996 JT-STSUPCOMO ST 61-75902750 JTST2SPST 2505-258950002996 JTBCXP OS MAX BOXi 3496 JT5T45PST 0-45003496 VERY OUIUT BOlTS DiiSEC1LYTO ENCINE MOONliNO BOLTS EXHAUST EXTENSION TUBINO ANt CLAMPS INCLUDED A/Nm U mm, 69681 points followed Daryl Perkins 69463 Dan Fink third 68334 points Sunday opener three-minute precision Round 10 another sevenminute precision duration last round four-minute precision three rounds required spot landings using eightfoot tapes divided four two-foot segments counting 10 20 30 40 points total 15 perfect rounds flown winner Joe Wurts earning five second place finisher Daryl Perkins earning four Wurts hit 11 perfect landings 11 flights popular airplane year Airtronics Legend 10 followed Falcon 9 popular brand transmitter Airtronics 25 19 Visions six radios used computer types equipment well some excellent eyesight allowed fliers venture long way field search lift Full camber control used top pilots Flaps ailerons helped make landings look easy gusty winds Tim Renaud Airtronics generously donated Sagitta 600 Olympic 650 kits workers raffle Hobby Dynamics donated JR dual transmitter case plus some JR hats Bob Massmann President NSS provided coffee mugs NSS T-shirts merchandise raffled off SWSA folks hosted contest provided labor well free coffee donuts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Joe Wurts Daryl Perkins Fred Weaver C George Larry Jolly Brad Clasen Jim Thomas Gary Anderson Steve Clasen Ben Clerx Skip Miller Craig Foxgord Myles Moran Don Edberg r Exhaust extensions worm drive mounting stral inClUded JT-6OPB 51-61 $2496 15George Joy 16SGeorge 17Mike Reagan 18JGeorge 19Tim Renaud 20Dan Fink 21Jim McCarthy 22Randy Spencer 23Don Vickers 24Todd Biliman 25Bob McGowan 26F Leppla 27Mike Fritz 28Steve Addis 29Don Tatum 30Ian Douglas 31Pete Russell 32Keith Kindrick 33John Brown 34Pete Carr 35Ray Olsen Finishing obechi letter printed above Brian Agnew mentioned gone obechi wing skins kits Bob Dodgson Mark Allen have switched also Asher Carmichaels article using obechi furniture veneers wing skins appeared May June columns received quite bit favorable comment So think obechi other veneers going seen more offer advantages over balsa available large sheets splicing isnt required ding resistant can finished just light lighter much expensive next question What exactly best way finish wood go right source Dave Acker Daves Wood Products probably modelers principal source obechi large sheets Dave kind enough drop letter include description own newly developed finishing method Before getting however let give address Daves Wood Products #7 Creekpark Ct Roswell GA 30076 telephone number 404 642-0645 Send SASE price list Now over Dave finishing system several ways finish surface obechi wings will outline ones have tried seem work well Undoubtedly other finishing systems will work try out different systemand worksplease let know will share others first two steps general instructions finishing obechi after has attached wing coreand after leading edges tips caps have added sanded 1 Sand obechi 150- 250-grit sandpaper 2 Vacuum wing use tack rag remove remaining dust Note use damp cloth rather tack rag Ruff Stuff$135 i Glue TipsAdd 20% total order shipping 4for$110 Lots Good Stuff Tee AppIied Design Corporation $310 11 L2fl3/ PO Box 3384 Torrance CA 90610$465 22 Mini Saw $925 $285 tough nails clean up water Color trimming can done after finishing spray painting application plastic film 3 Apply coat Flecto Varathane Diamond Finish buy Home Depot seal wood keep out water wet-sand subsequent coats apply using cheap foam brush 4 Next apply coat filler using old credit card can use Model Magic comparable filler Since Im cheap August1992 177 7 om Shapes Available Stay Tray $210 V intend use water-based finishes described below point wings can covered low-temperature film such Black Baron Use damp cloth right behind iron make sure film stuck wood following steps applied finishing system quick allows wood grain show Recently have several water-based urethane finishes available home woodworker finishes nontoxic virtually odorless wpack ts made high-qualify balsa plywood May flown 05 eleckic power 049 11 glow-engine power Pads instructions both versions included its compact Ready fly easily fits backseat car Offers solid big-plane pedonnance its small plane flies like 40 $4995 Accepts standard-size servosList Wingspan f 4 aches uu square mcnes WeIght 7 ouncesbare airframeSe yell hahhy dealer first deeset 22 28 ouncesready fly glow poweredstock SNAPPED ertler direct fi nnnepnmndv liv Iefeetric owsreiflInclude $250 S&H direct orders BATFERY MANAGEMENT System MOSFET nicad cycler $14995 MOSIET nicad ccler designed specilically planes boats helicopters 3 overnight/trickle outputs capable charging 1 to9 cells infinitely adjustable FIX overnight charge current ability discharge both FIX TX packs digital discharge timer 3 outputs allow simultaneous separate charging ofsur FIX TX AUXILIARY eg glow plug starter battetyl nicads Nicads will charge overnight rate 17 hours 4 minutes before automatically switching trickle rate Adjustable control allows charging FIX pack up 2000 mAli capacity TX output can discharge 8 9 cell packs 300 mA RX output can discharge 4 5 cell packs 300 500 mA True Constant Current sources used charge/discharge modes power up fiNS ONE will always come up overnight charge mode ensuring Itilly charged batteries event momentary 110 solt power loss Utilizing Current Detection Circuitry LEDs can illuminate current actually flowing out batteries Large digital display anti-glare filter shows fiX TX discharge times Unique CAPACITY CALCULATOR will allow milliampere-hour rating batteries determined Prepeid-dees MoneyOdetotCertttiedChects Snppnq & Handling $700 COO 0-dee Gash 0 Caditod Cheds collected delaety Add 0000 above amounts FACTORY DIRECT ONLY plces Spedficaloes Sabjed __________________________________________________________ Change Without notice DesIgned ad Manutactared LISA m m ...... Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Baflys Resort Hotel Casino Rti irday Sunday August 22-23 992 OB81 0 Ml 7992 Planes Trains Cars Boats Demonstrations Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free Sponsored Reno Radio Control Club AMA 0696 booth show information call Val Young 702/3S9-08 14 U U m m m m m m m U U U U U U P COOLOn BIGGEST SCOLE PLANS 0 novAe no,n Pioc, 0000k Art 5e C, 0C tOO PAGE CATALOG SCALE OOCOMEu0onton seonooc 07 COOLt 00CC OCt00 0009 Madto A. O,o5eo NC 0000 St St 202-5209 use Red Devil Time Spacklingagain Home Depot stuff will dry white thus leave fine white lines grain wing bothers mix some color filler before put wing get color local craft store called Ceramcoat Delta find flesh tone works well obechi can use coloring material compatible water-based paints Just mix enough color filler approximate color wood Spread filler thinly let dry few minutes scrape off excess going 450 angle credit card Let dry completely wet-sand back down wood 150- 250-grit paper What should remain just enough filler fill wood grain feel necessary repeat step Caution Make sure sanded surface completely dry before proceed next step 5 Use paper towel wipe thin coat sealer Varathane Let dry wet-sand Wipe off surface wet towel cloth let dry again Repeat step times like Just remember use paper towel will putting very thin light coats Wet-sand after application find four coats works fine can really get carried away trying furniture finish too much weight penalty have used above system Falcon 600 four coats finish added 125 oz weight just covered film would have added three ounces Some guys experimenting adding color pigment Varathane seems work out well fact has wing streaks blue red green looks like tie-dyed shirt sure hope never lands grasshell never find use fluorescent-colored film wing tips flaps apply reflecting silver strip along leading edge get flash ship turns sun Caution use some other brands finishes make sure compatible other testing concoction scrap piece woodpreferably open field away women children Super cautions 1 sanding finishing have adequate ventilation garage fan running doors windows open Protect lungs sanding wood 2 Always try out adhesives finishing materials scrap foam wood before use wings foam wood disappears goes up smoke try another product 3 use epoxy adhere wood cores its good idea put wax paper between obechi core beds Sometimes epoxy will bleed through obechi stick beds wings would certainly prove interesting doubt resultant lift-to178 Model Aviation RK ELECTRONICS IEINOVATWE ELECThONICS DepL 262 304 Faa Rae ttudaca 1411 03051 603-882-6022 mu Antiques Military Civilian Helicopters Sailplane IOver 3300 different20000 plus 3-view color FOTO-PAAKSIncluding KOKIJ-FAN drag ratio would give desired performance Note Some people mix microballoons epoxy apparently stops bleed-through problem provides lighter wing Another method coat inside face wood light coat waterbased urethane noted above Let dry use epoxy before apparently also helps using 3M 77 spray adhesive Another great product found Home Depot No dont own stock new sanding product called Rinsen Reuse NICSAND Inc stuff cloth-backed aluminum oxide bonded foam pad extra strength durability idea dust migrates through sanding surface foam backing can vacuumed washed away does clog can used over over Its available 60- 100- 150-grit use 150-grit exclusively working wings David B Fraser Scholarship Science Last month reported tragic death David Fraser crash Mooney Michael Selig coauthor Airfoils Low Speeds Soartech #8 David John Donovan sent letter telling scholarship fund named honor David Fraser family Fraser-Volpe Corp will make initial contribution fund Eligible recipients will selected student applicant pursuing studies either science engineering Memorial contributions endow fund may sent David B Fraser Scholarship Science Mr Jonathan Fraser 1335 Slayton Dr Maple Glen PA 19002 MARCS Symposium popular Madison Area RIC Societys National Sailplane Symposium scheduled October24 25 1992 will held Ramada Inn 3841 East Washington Ave Madison Wisconsin 53704 Call 608 244-2481 room reservations can arrive early usual day trip EAA Museum Oshkosh will Friday 23rd list speakers finalized write however symposium always interesting affair great windup flying season Its like Old Home Weekend Soaring set information contact Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 telephone 608 238-2321 rdlConover Continued page 83 10 Brush light thinned clear dope surfaces Sand fine paper Brush second coat Dont sand gripper area need good grip Dont worry about too much weight dope adds /2 gram need strength get maximum climb slick flying surfaces Now fun begins Three reasons CC-I makes good first flying training model 1 Its easy quick build repair 2 Its teaching tool shows tenderfoots adjust flying models key early success 3 Performance outstanding Can imagine effect Star Wars climb 10 times higher kids home Adjustments flight begin doing hand glides under mentors guidance could begine balancing model vee scissors CG point indicated plan its easier just test glide add spot clay nose Some will require no clay students picnic hand gliding models city council chambers too windy outside goal should get streaking tight spiral climb rolls out top may have bend slight amount down elevon rear wing opposite glide circle model must have glide circle youll lose downwind brush Try /32 right rudder glide turn 1h2 down elevon right rear wing starting trim should give safe left bank launch right glide circle kids get see what big difference small amount trim makes model flies model comes screaming down off top 9-G dive may have bend bit up elevon both sides Newtons laws paraphrased says reaction up elevon will push side wing down flight too loopy doesnt achieve much altitude try down elevon both sides prefer adjust main rear wing rudder sodacan adjuster strips help make fine trim adjustments stay put trimming phase ideal time teach students basics flight adjustment will apply flying models build future fullscale aircraft impact like teaching young person read write properly Both can have far-reaching effects rest lives Prelaunch catapult technique Make up catapult match fliers arm length Small kids need about seven-inch loop t/s4n FAI tan rubber 9 x 14-in dowel piece hard 14-in-sq balsa Longer arms can use nine-inch 1oop nine-inch catapult 10-inch loop 10-inch stick 1oop too long model will catch flop SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AD U 5InUInIA V OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIIT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT l/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1992 179 NEW PRODUCT NEW PRODUCT NEW PRODUCT NEW PRODUCT AIRFOIL DATA DISKS FOILED AGAINW Now popular demand shipping disks ready-made airfoils use FOILED AGAINIII MORE THAN 50 AIRFOIL DATA FILES ON EACH DISK IN NEW STANDARDIZED DATA FORMAT ILLUSTRATED 58-PAGE MANUAL WITH MULTIPLE PLOTS & COORDINATE DATA FOR EACH AIRFOIL Disk Selig-Donovan Eppler other Airfoils Disk B NACA Symmetric Cambered Airfoils EHRHRRH TOILED AGAIN VT 3D RI Ale ORDER YOUR COPIES NOW $2500 OVERSEAS UPPERS 53500 US PER RTSIR WATCH OUR ADS TSR NFl SOT OTHER DATA DISK RELEASES CYGNET Software 619 792-8021 3525 Del Mar Heights #2375 San Diego CA 92130 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE 9 Add soda-can adjuster strips No 8 pin catapult attachment point Coat thinly glue
Edition: Model Aviation - 1992/08
Page Numbers: 62, 63, 171, 176, 177, 178, 179
V RADIO CONTROL John de Vries 4610 Moffat Lane Colorado Springs CO 80915 WERE GOING start months column endthe back end Giant Scale model Dont kiiow youve noticed majority Big Birds drag tails Except used occasional warbird tricycle gears few far between leaves us couple ways keep rudder getting ground offa tail skid tail wheel Being devoted authentic representations full-size airplanes often stuck what full-scale craft used support rear fuselage general tail skids used during era airports nothing grass fields Skids worked well grass functioned brakes early birds didnt have binders wheelsas did paved runways came onto scene tail wheels came vogue Pilots found concrete tendency wear tail skid shoes rapidly make takeoffs difficult because rear ends planes would slip slide hard surfaces late 1930s aircraft tail wheels Giant Scale modelers have big advantage comes duplicating tail supports replicas can copy full-size arrangements last nut bolt scale parts big enough detailed reproduction World War tail skids little pivoted devices made hardwood metal pivot bar mounted across lower longerons upper end skid attached hungee rubber cord added bit spring action lower end shod metal shoe Some skids made leaves spring steel gained degree shock absorption skid itself Ground maneuverability fixed skid marginal best often couple wing walkers needed help pilot taxi Alone pilot faced delicate task blasting throttle elevator neutral rudder full over direction wanted turn Too much throttle propeller got lot shorter hit ground As tail skids improved 1 920s rounded cast metal shoes used could edged right left hard ground improved pilots ability slide around bit throttle lot rudder Eventually aircraft designers came up steerable tail skids attached rudder cables really helped ground maneuverability As noted above tail skids paved runways dont mix Takeoffs dicey model has fixed skid because dont have much directional control until airspeed great enough permit rudder effective Too-rapid application throttle early takeoff roll sure produce ground loop model needs tail skid can choose several remedies eliminate problems posed concrete asphalt runways Scale purist tail skid may split small tail wheel inserted properly done wheel will almost invisible its lower edge projecting doesnt take much horseback engineering develop invisible tail skid steering mechanism can contained rear fuselage Either technique will ease takeoff directional control woes maintaining scale appearance elaborate system skid-equipped birdsand has full-scale counterpartis build two tail skid modules Either can bolted steering mechanism within fuselage provide plug-in skid tail wheel youre flying off grass scale skid would used field has runway loosening setscrew replacing skid tail wheel simple operation steering mechanism can include necessary shock absorption Either 62 Model Aviation Nicholas Madonias Aeromaster 150 150% enlargement Lou Andrewss Aeromaster using Quadra 52 Nicks next project will Giant Beech Bonanza ipIane leti standard Aeromaster right Madonias Want version inherited excellent flying characteristics original model IJICK icnenor 15-scale IIflSUfl L0 I8KOTT roll LuCK uia iriena DI dUnn S IrOlil Chino Hills California designed scratch built WW II liaison aircraft model AFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $500 BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion andComputer Designed3 Axis Control Reserve Grand Champion UltralightPart 103 UltralightEasy Construction 1989 Sun-N-Fun Fly-In* Wood Construction TEAM INC BOX 338M BRADY VILLE TN 37026 615 765-5397 WALNUT CA91789 7145941349 594 1471 CALL OR WRITE FOR FREE BROCHURE heavy-duty rubberbands better yet metal spring can used Screen door springs seem work well either singly dual installations can cut needed length pair wire cutters Would believe Two-thirds letters yours truly receives readers column about photographs beautiful Giant Scale models picture generate tremendous amount interest writer usually wants get touch models builderto learn drawings used what special building problems solved building techniques involved completing bird instances keep builders name address backup envelope others should able provide further reference knowledgeable person wholl able get writer builder together Other writers questions require bit research happily have rather complete library back up answers library recently augmented review copy John C Fredriksen s book Flying Model Warplanes published Air Age Publishing 251 Danbury Rd Wilton CT 06897 telephone 800 243-6685 book has 8000 individual entries covering plans kits military aircraft models over world data base includes everything Peanuts Giant Scale covers entire history aviation John includes prices drawings kits accessories very great value comprehensive listing suppliers Mr Fredriksen intends update book three years book well worth $1495 price plus $3 shipping handling puts lot valuable interesting data fingertips Giant Scale builders believe old cliche Real airplanes have round engines two wings therell heck show Lake Guntersville Aerodrome Alabama September 5 6 7 Hank Iltzsch wrote tell about Aerodrome 92 gathering over 150 WW full-scale aircraft thatll complemented whole bunch Giant Scale models Great War era daily flying exhibitions will include Fokkers Albatroses SF-5s plus host other toothsome ancient fighters reconnaissance craft should some kind showWorld War air original cast Nicholas Madonia Palm Coast Florida posed interesting question sent photographs Aeromaster 150 model reverse-scale version Lou Andrewss venerable biplane Nick wondered bird appropriate column wrote assure him because Im guided IMAA definition Giant models its big un Im happy include pages Nick enlarged Aeromaster drawings 150% stuck Quadra 52 nose 79-in-span model duplicated Andrews lockbox construction originalto dismay turned out says model should have weighed 18 20 lb ended up weighing 25 lb because extra structure event big Aeromaster flies better original Great ideaenlarging proven model Giant dimensions Well leave month hint may reduce frustration factor around workbench trickier tasks model builders face fixing canopy windshield place transparent material useusually clear plasticis prone scratching Continued page 171 August1992 63 Left Hank lltzschs 113-scale Giant Sopwith Pup Right Sopwith Pups scale tail skid Hank Seekonk Massachusetts used Jim Kigers excellent drawings produce beauty currently resides Owls Head Museum Maine similar described above comparable models tape mere 12 bucks plus postage about half hour long Its available Astro cannot watch tape still believe Electric no good Please include SASE correspondence youd like reply Happy Quiet Summertime Electric Everyone RO OiantsldeVrios Continued page 63 Scratches unsightly theyre nonscale once glob glue drops windshield/canopy produces manner ugly language globs its good idea remove much glue possible before sets wait until residue dries Scratches globsfrom out techniques same Begin attacking glob/scratch some 400-grit sandpaper things out well can trying minimize size sanded area Work slowly carefully Next use finer grade paper 600-grit smooth out scratches earlier paper made Third using very soft cloth old T-shirts work well jewelers rouge available stick form polish out sandpaper scratches Finally use soft cloth lot elbow grease apply Brasso brass polish Depending severity blemish might able start midtechnique event conscientious effort should able restore models clear plastic parts pristine condition Keep big uns flying RC SoaringlBlakeslee Continued page 61 160-in-span super ships can ranged over area still seen However Brits use spotlanding bonus F31 will have same F3B landing tape big ships will disadvantage making landing points Choosing optimum glider depends lot weather Calm light conditions will favor floaters heavier faster ships will better windy weather rapidly moving thermals make prediction Id say popular all-around F3J glider will 30 35 meters wingspan have ailerons flaps computer radio controlled built light about l0-oz/sq-ft minimum wing loading capable carrying ballast bring wing loading up about 16 ozisq ft other words bigger F3B ship Ill have hand-towing technique equipment upcoming columns 171 continued page 176 August 1992 UNLEASH POWER WITHIN IZE its AWESOME Bigger Engine Won t Fit MORE POWER 5 WillBIGGER PROPS Over 4in toCOOL RUNNING Well w2000 NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels rid 75 stamped #10 SASE & $200 e PO Box 141 ord CT 06460 ivioael Diesel Technology Since 1975 Zs. L LATHES MILLS METALS EOOKS PRECISION INSTRUMENTS 7jT-- CQNPfETE CATALOG $200 100Gb stems --CAMP BELL TOOLS Co 2100 M Sob, Road beobogfi2d 00 45505 513 3228562 OOPUTEPIZED IPCPAFT PLOTS Technical Illustrations Suitable Framing Scde afting cud Scoriing S&vces 3 Views D-TECH SYSTEMS Cabk stoo APC PROPELLERS Sound Supression Design High Thrust Efficiency Long Fiber Advanced Composite Material Proven Performance US Masters US Nationals Canadian Nationals World Championships SPORTS SIZES 57x36x27x345678910$159 8x45678910$179 9x45678910$199 95x 45 lOx 345678910$229 11x3456789$249 115x 4 12 x 678$289 13x6$425 REVERSE PITCH PUSHER 9x6 10x6 7 8 11 x67$395 COMPETITION 63 x4 65x 37 78x 467 9 x 65 85 95x 65N 7N 75N 8N 85N 1O5x 45$395 11 xlO 11 1212W 1314 12x9 9W 1010W 11 uN 11512 12N 12513 13N 14 125x 9101111512 12513 13 x 910$795 135x 910125 13314 14 x 68101213 13514 144x 1051213 145x 14N 15 x 8 10111216x81012$1295 MULTIBLADE onent Propeller Systems 2-blade18081012$2200 20x6 10 12 14$2500 2208 10 12 14 16$3100 24010121416$3800 3-Blade17 1018 10 19 xli$3300 20x10121421x12$3700 22x10 12 14 16$4600 24x10 12 14 16$5500 Multi Blade Hubs2-Blade 16-19 dia$3000 2-Blade 20-21 dia$3500 2-Blade 22 dia$4000 2-Blade 24 dia$6000 3-Blade 17-19 dia$4500 3-Blade 20-21 dia$5500 3-Blade 22 dia$6500 3-Blade 24 dia$9000 Contact local hobby dealer first doesnt have what need order direct 916-661-6515 Manufactured Landing Produce PO So 939 Knights Landing CA e5e45 176 Model Aviation UNIVERSAL STRAP ON older engines muffler bolts 29-46 JT-40P $2196 61-61 JT-60P $2396 ASP 91-108 JT-A9IP $2496 Pitts-Style Mufflers UNIVERSAL BOLT ON side mounted engines Will fit 90% engines made after 1989 Easy attach Just bait muffler engine factory muffler baits bolts supp- muffler JT-4OPB 29-45 $2296 MAIL ORDUIS Picase add $250 UPS shipping Check MO Visa MC COD actepted Add $400 estra COD California residents add 9% saies tax RC SoaringlBlakeslee Continued page 171 Masters Soaring Space restrictions usually dont allow printing much way contest results Masters such special contest think contestants deserve recognized among top fliers hobby sure what doing flying will eventually influence competition flying report SWSA newsletter editor Don McColgan 1992 Masters Soaring competition opened Saturday March 21 Silent Wings Soaring Association SWSA field Covina California Thirtyfive top glider fliers braved spring rains participate 16 scheduled rounds tough competition Due rain eight Saturdays rounds completed three Sunday participate contest flier must have achieved LSF Level V Level IV contest points Level V must hold National record must have won major two-day national regional contest Saturday started three-minute Precision Duration warm-up followed four- seven- 10-minute triathalon Round five five-minute precision six seven-minute duration seven threeminute precision eight six-minute duration event landings either runway spot adding maximum 40 points rules made flying time paramount importance scoring precision rounds vesy steep Thirty seconds off goal resulted zero flight score storm clouds provided lots turbulence lift sink few showers well some gusty winds during some landings contest meant easy Round ended five perfect scores 1000 points six-place tie sixth scores 9946 close round eight Saturday Joe Wurts led iT-MIXUPMAX 91-1962996 JT-STSUPCOMO ST 61-75902750 JTST2SPST 2505-258950002996 JTBCXP OS MAX BOXi 3496 JT5T45PST 0-45003496 VERY OUIUT BOlTS DiiSEC1LYTO ENCINE MOONliNO BOLTS EXHAUST EXTENSION TUBINO ANt CLAMPS INCLUDED A/Nm U mm, 69681 points followed Daryl Perkins 69463 Dan Fink third 68334 points Sunday opener three-minute precision Round 10 another sevenminute precision duration last round four-minute precision three rounds required spot landings using eightfoot tapes divided four two-foot segments counting 10 20 30 40 points total 15 perfect rounds flown winner Joe Wurts earning five second place finisher Daryl Perkins earning four Wurts hit 11 perfect landings 11 flights popular airplane year Airtronics Legend 10 followed Falcon 9 popular brand transmitter Airtronics 25 19 Visions six radios used computer types equipment well some excellent eyesight allowed fliers venture long way field search lift Full camber control used top pilots Flaps ailerons helped make landings look easy gusty winds Tim Renaud Airtronics generously donated Sagitta 600 Olympic 650 kits workers raffle Hobby Dynamics donated JR dual transmitter case plus some JR hats Bob Massmann President NSS provided coffee mugs NSS T-shirts merchandise raffled off SWSA folks hosted contest provided labor well free coffee donuts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Joe Wurts Daryl Perkins Fred Weaver C George Larry Jolly Brad Clasen Jim Thomas Gary Anderson Steve Clasen Ben Clerx Skip Miller Craig Foxgord Myles Moran Don Edberg r Exhaust extensions worm drive mounting stral inClUded JT-6OPB 51-61 $2496 15George Joy 16SGeorge 17Mike Reagan 18JGeorge 19Tim Renaud 20Dan Fink 21Jim McCarthy 22Randy Spencer 23Don Vickers 24Todd Biliman 25Bob McGowan 26F Leppla 27Mike Fritz 28Steve Addis 29Don Tatum 30Ian Douglas 31Pete Russell 32Keith Kindrick 33John Brown 34Pete Carr 35Ray Olsen Finishing obechi letter printed above Brian Agnew mentioned gone obechi wing skins kits Bob Dodgson Mark Allen have switched also Asher Carmichaels article using obechi furniture veneers wing skins appeared May June columns received quite bit favorable comment So think obechi other veneers going seen more offer advantages over balsa available large sheets splicing isnt required ding resistant can finished just light lighter much expensive next question What exactly best way finish wood go right source Dave Acker Daves Wood Products probably modelers principal source obechi large sheets Dave kind enough drop letter include description own newly developed finishing method Before getting however let give address Daves Wood Products #7 Creekpark Ct Roswell GA 30076 telephone number 404 642-0645 Send SASE price list Now over Dave finishing system several ways finish surface obechi wings will outline ones have tried seem work well Undoubtedly other finishing systems will work try out different systemand worksplease let know will share others first two steps general instructions finishing obechi after has attached wing coreand after leading edges tips caps have added sanded 1 Sand obechi 150- 250-grit sandpaper 2 Vacuum wing use tack rag remove remaining dust Note use damp cloth rather tack rag Ruff Stuff$135 i Glue TipsAdd 20% total order shipping 4for$110 Lots Good Stuff Tee AppIied Design Corporation $310 11 L2fl3/ PO Box 3384 Torrance CA 90610$465 22 Mini Saw $925 $285 tough nails clean up water Color trimming can done after finishing spray painting application plastic film 3 Apply coat Flecto Varathane Diamond Finish buy Home Depot seal wood keep out water wet-sand subsequent coats apply using cheap foam brush 4 Next apply coat filler using old credit card can use Model Magic comparable filler Since Im cheap August1992 177 7 om Shapes Available Stay Tray $210 V intend use water-based finishes described below point wings can covered low-temperature film such Black Baron Use damp cloth right behind iron make sure film stuck wood following steps applied finishing system quick allows wood grain show Recently have several water-based urethane finishes available home woodworker finishes nontoxic virtually odorless wpack ts made high-qualify balsa plywood May flown 05 eleckic power 049 11 glow-engine power Pads instructions both versions included its compact Ready fly easily fits backseat car Offers solid big-plane pedonnance its small plane flies like 40 $4995 Accepts standard-size servosList Wingspan f 4 aches uu square mcnes WeIght 7 ouncesbare airframeSe yell hahhy dealer first deeset 22 28 ouncesready fly glow poweredstock SNAPPED ertler direct fi nnnepnmndv liv Iefeetric owsreiflInclude $250 S&H direct orders BATFERY MANAGEMENT System MOSFET nicad cycler $14995 MOSIET nicad ccler designed specilically planes boats helicopters 3 overnight/trickle outputs capable charging 1 to9 cells infinitely adjustable FIX overnight charge current ability discharge both FIX TX packs digital discharge timer 3 outputs allow simultaneous separate charging ofsur FIX TX AUXILIARY eg glow plug starter battetyl nicads Nicads will charge overnight rate 17 hours 4 minutes before automatically switching trickle rate Adjustable control allows charging FIX pack up 2000 mAli capacity TX output can discharge 8 9 cell packs 300 mA RX output can discharge 4 5 cell packs 300 500 mA True Constant Current sources used charge/discharge modes power up fiNS ONE will always come up overnight charge mode ensuring Itilly charged batteries event momentary 110 solt power loss Utilizing Current Detection Circuitry LEDs can illuminate current actually flowing out batteries Large digital display anti-glare filter shows fiX TX discharge times Unique CAPACITY CALCULATOR will allow milliampere-hour rating batteries determined Prepeid-dees MoneyOdetotCertttiedChects Snppnq & Handling $700 COO 0-dee Gash 0 Caditod Cheds collected delaety Add 0000 above amounts FACTORY DIRECT ONLY plces Spedficaloes Sabjed __________________________________________________________ Change Without notice DesIgned ad Manutactared LISA m m ...... Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Baflys Resort Hotel Casino Rti irday Sunday August 22-23 992 OB81 0 Ml 7992 Planes Trains Cars Boats Demonstrations Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free Sponsored Reno Radio Control Club AMA 0696 booth show information call Val Young 702/3S9-08 14 U U m m m m m m m U U U U U U P COOLOn BIGGEST SCOLE PLANS 0 novAe no,n Pioc, 0000k Art 5e C, 0C tOO PAGE CATALOG SCALE OOCOMEu0onton seonooc 07 COOLt 00CC OCt00 0009 Madto A. O,o5eo NC 0000 St St 202-5209 use Red Devil Time Spacklingagain Home Depot stuff will dry white thus leave fine white lines grain wing bothers mix some color filler before put wing get color local craft store called Ceramcoat Delta find flesh tone works well obechi can use coloring material compatible water-based paints Just mix enough color filler approximate color wood Spread filler thinly let dry few minutes scrape off excess going 450 angle credit card Let dry completely wet-sand back down wood 150- 250-grit paper What should remain just enough filler fill wood grain feel necessary repeat step Caution Make sure sanded surface completely dry before proceed next step 5 Use paper towel wipe thin coat sealer Varathane Let dry wet-sand Wipe off surface wet towel cloth let dry again Repeat step times like Just remember use paper towel will putting very thin light coats Wet-sand after application find four coats works fine can really get carried away trying furniture finish too much weight penalty have used above system Falcon 600 four coats finish added 125 oz weight just covered film would have added three ounces Some guys experimenting adding color pigment Varathane seems work out well fact has wing streaks blue red green looks like tie-dyed shirt sure hope never lands grasshell never find use fluorescent-colored film wing tips flaps apply reflecting silver strip along leading edge get flash ship turns sun Caution use some other brands finishes make sure compatible other testing concoction scrap piece woodpreferably open field away women children Super cautions 1 sanding finishing have adequate ventilation garage fan running doors windows open Protect lungs sanding wood 2 Always try out adhesives finishing materials scrap foam wood before use wings foam wood disappears goes up smoke try another product 3 use epoxy adhere wood cores its good idea put wax paper between obechi core beds Sometimes epoxy will bleed through obechi stick beds wings would certainly prove interesting doubt resultant lift-to178 Model Aviation RK ELECTRONICS IEINOVATWE ELECThONICS DepL 262 304 Faa Rae ttudaca 1411 03051 603-882-6022 mu Antiques Military Civilian Helicopters Sailplane IOver 3300 different20000 plus 3-view color FOTO-PAAKSIncluding KOKIJ-FAN drag ratio would give desired performance Note Some people mix microballoons epoxy apparently stops bleed-through problem provides lighter wing Another method coat inside face wood light coat waterbased urethane noted above Let dry use epoxy before apparently also helps using 3M 77 spray adhesive Another great product found Home Depot No dont own stock new sanding product called Rinsen Reuse NICSAND Inc stuff cloth-backed aluminum oxide bonded foam pad extra strength durability idea dust migrates through sanding surface foam backing can vacuumed washed away does clog can used over over Its available 60- 100- 150-grit use 150-grit exclusively working wings David B Fraser Scholarship Science Last month reported tragic death David Fraser crash Mooney Michael Selig coauthor Airfoils Low Speeds Soartech #8 David John Donovan sent letter telling scholarship fund named honor David Fraser family Fraser-Volpe Corp will make initial contribution fund Eligible recipients will selected student applicant pursuing studies either science engineering Memorial contributions endow fund may sent David B Fraser Scholarship Science Mr Jonathan Fraser 1335 Slayton Dr Maple Glen PA 19002 MARCS Symposium popular Madison Area RIC Societys National Sailplane Symposium scheduled October24 25 1992 will held Ramada Inn 3841 East Washington Ave Madison Wisconsin 53704 Call 608 244-2481 room reservations can arrive early usual day trip EAA Museum Oshkosh will Friday 23rd list speakers finalized write however symposium always interesting affair great windup flying season Its like Old Home Weekend Soaring set information contact Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 telephone 608 238-2321 rdlConover Continued page 83 10 Brush light thinned clear dope surfaces Sand fine paper Brush second coat Dont sand gripper area need good grip Dont worry about too much weight dope adds /2 gram need strength get maximum climb slick flying surfaces Now fun begins Three reasons CC-I makes good first flying training model 1 Its easy quick build repair 2 Its teaching tool shows tenderfoots adjust flying models key early success 3 Performance outstanding Can imagine effect Star Wars climb 10 times higher kids home Adjustments flight begin doing hand glides under mentors guidance could begine balancing model vee scissors CG point indicated plan its easier just test glide add spot clay nose Some will require no clay students picnic hand gliding models city council chambers too windy outside goal should get streaking tight spiral climb rolls out top may have bend slight amount down elevon rear wing opposite glide circle model must have glide circle youll lose downwind brush Try /32 right rudder glide turn 1h2 down elevon right rear wing starting trim should give safe left bank launch right glide circle kids get see what big difference small amount trim makes model flies model comes screaming down off top 9-G dive may have bend bit up elevon both sides Newtons laws paraphrased says reaction up elevon will push side wing down flight too loopy doesnt achieve much altitude try down elevon both sides prefer adjust main rear wing rudder sodacan adjuster strips help make fine trim adjustments stay put trimming phase ideal time teach students basics flight adjustment will apply flying models build future fullscale aircraft impact like teaching young person read write properly Both can have far-reaching effects rest lives Prelaunch catapult technique Make up catapult match fliers arm length Small kids need about seven-inch loop t/s4n FAI tan rubber 9 x 14-in dowel piece hard 14-in-sq balsa Longer arms can use nine-inch 1oop nine-inch catapult 10-inch loop 10-inch stick 1oop too long model will catch flop SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AD U 5InUInIA V OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIIT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT l/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1992 179 NEW PRODUCT NEW PRODUCT NEW PRODUCT NEW PRODUCT AIRFOIL DATA DISKS FOILED AGAINW Now popular demand shipping disks ready-made airfoils use FOILED AGAINIII MORE THAN 50 AIRFOIL DATA FILES ON EACH DISK IN NEW STANDARDIZED DATA FORMAT ILLUSTRATED 58-PAGE MANUAL WITH MULTIPLE PLOTS & COORDINATE DATA FOR EACH AIRFOIL Disk Selig-Donovan Eppler other Airfoils Disk B NACA Symmetric Cambered Airfoils EHRHRRH TOILED AGAIN VT 3D RI Ale ORDER YOUR COPIES NOW $2500 OVERSEAS UPPERS 53500 US PER RTSIR WATCH OUR ADS TSR NFl SOT OTHER DATA DISK RELEASES CYGNET Software 619 792-8021 3525 Del Mar Heights #2375 San Diego CA 92130 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE 9 Add soda-can adjuster strips No 8 pin catapult attachment point Coat thinly glue
Edition: Model Aviation - 1992/08
Page Numbers: 62, 63, 171, 176, 177, 178, 179
V RADIO CONTROL John de Vries 4610 Moffat Lane Colorado Springs CO 80915 WERE GOING start months column endthe back end Giant Scale model Dont kiiow youve noticed majority Big Birds drag tails Except used occasional warbird tricycle gears few far between leaves us couple ways keep rudder getting ground offa tail skid tail wheel Being devoted authentic representations full-size airplanes often stuck what full-scale craft used support rear fuselage general tail skids used during era airports nothing grass fields Skids worked well grass functioned brakes early birds didnt have binders wheelsas did paved runways came onto scene tail wheels came vogue Pilots found concrete tendency wear tail skid shoes rapidly make takeoffs difficult because rear ends planes would slip slide hard surfaces late 1930s aircraft tail wheels Giant Scale modelers have big advantage comes duplicating tail supports replicas can copy full-size arrangements last nut bolt scale parts big enough detailed reproduction World War tail skids little pivoted devices made hardwood metal pivot bar mounted across lower longerons upper end skid attached hungee rubber cord added bit spring action lower end shod metal shoe Some skids made leaves spring steel gained degree shock absorption skid itself Ground maneuverability fixed skid marginal best often couple wing walkers needed help pilot taxi Alone pilot faced delicate task blasting throttle elevator neutral rudder full over direction wanted turn Too much throttle propeller got lot shorter hit ground As tail skids improved 1 920s rounded cast metal shoes used could edged right left hard ground improved pilots ability slide around bit throttle lot rudder Eventually aircraft designers came up steerable tail skids attached rudder cables really helped ground maneuverability As noted above tail skids paved runways dont mix Takeoffs dicey model has fixed skid because dont have much directional control until airspeed great enough permit rudder effective Too-rapid application throttle early takeoff roll sure produce ground loop model needs tail skid can choose several remedies eliminate problems posed concrete asphalt runways Scale purist tail skid may split small tail wheel inserted properly done wheel will almost invisible its lower edge projecting doesnt take much horseback engineering develop invisible tail skid steering mechanism can contained rear fuselage Either technique will ease takeoff directional control woes maintaining scale appearance elaborate system skid-equipped birdsand has full-scale counterpartis build two tail skid modules Either can bolted steering mechanism within fuselage provide plug-in skid tail wheel youre flying off grass scale skid would used field has runway loosening setscrew replacing skid tail wheel simple operation steering mechanism can include necessary shock absorption Either 62 Model Aviation Nicholas Madonias Aeromaster 150 150% enlargement Lou Andrewss Aeromaster using Quadra 52 Nicks next project will Giant Beech Bonanza ipIane leti standard Aeromaster right Madonias Want version inherited excellent flying characteristics original model IJICK icnenor 15-scale IIflSUfl L0 I8KOTT roll LuCK uia iriena DI dUnn S IrOlil Chino Hills California designed scratch built WW II liaison aircraft model AFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $500 BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion andComputer Designed3 Axis Control Reserve Grand Champion UltralightPart 103 UltralightEasy Construction 1989 Sun-N-Fun Fly-In* Wood Construction TEAM INC BOX 338M BRADY VILLE TN 37026 615 765-5397 WALNUT CA91789 7145941349 594 1471 CALL OR WRITE FOR FREE BROCHURE heavy-duty rubberbands better yet metal spring can used Screen door springs seem work well either singly dual installations can cut needed length pair wire cutters Would believe Two-thirds letters yours truly receives readers column about photographs beautiful Giant Scale models picture generate tremendous amount interest writer usually wants get touch models builderto learn drawings used what special building problems solved building techniques involved completing bird instances keep builders name address backup envelope others should able provide further reference knowledgeable person wholl able get writer builder together Other writers questions require bit research happily have rather complete library back up answers library recently augmented review copy John C Fredriksen s book Flying Model Warplanes published Air Age Publishing 251 Danbury Rd Wilton CT 06897 telephone 800 243-6685 book has 8000 individual entries covering plans kits military aircraft models over world data base includes everything Peanuts Giant Scale covers entire history aviation John includes prices drawings kits accessories very great value comprehensive listing suppliers Mr Fredriksen intends update book three years book well worth $1495 price plus $3 shipping handling puts lot valuable interesting data fingertips Giant Scale builders believe old cliche Real airplanes have round engines two wings therell heck show Lake Guntersville Aerodrome Alabama September 5 6 7 Hank Iltzsch wrote tell about Aerodrome 92 gathering over 150 WW full-scale aircraft thatll complemented whole bunch Giant Scale models Great War era daily flying exhibitions will include Fokkers Albatroses SF-5s plus host other toothsome ancient fighters reconnaissance craft should some kind showWorld War air original cast Nicholas Madonia Palm Coast Florida posed interesting question sent photographs Aeromaster 150 model reverse-scale version Lou Andrewss venerable biplane Nick wondered bird appropriate column wrote assure him because Im guided IMAA definition Giant models its big un Im happy include pages Nick enlarged Aeromaster drawings 150% stuck Quadra 52 nose 79-in-span model duplicated Andrews lockbox construction originalto dismay turned out says model should have weighed 18 20 lb ended up weighing 25 lb because extra structure event big Aeromaster flies better original Great ideaenlarging proven model Giant dimensions Well leave month hint may reduce frustration factor around workbench trickier tasks model builders face fixing canopy windshield place transparent material useusually clear plasticis prone scratching Continued page 171 August1992 63 Left Hank lltzschs 113-scale Giant Sopwith Pup Right Sopwith Pups scale tail skid Hank Seekonk Massachusetts used Jim Kigers excellent drawings produce beauty currently resides Owls Head Museum Maine similar described above comparable models tape mere 12 bucks plus postage about half hour long Its available Astro cannot watch tape still believe Electric no good Please include SASE correspondence youd like reply Happy Quiet Summertime Electric Everyone RO OiantsldeVrios Continued page 63 Scratches unsightly theyre nonscale once glob glue drops windshield/canopy produces manner ugly language globs its good idea remove much glue possible before sets wait until residue dries Scratches globsfrom out techniques same Begin attacking glob/scratch some 400-grit sandpaper things out well can trying minimize size sanded area Work slowly carefully Next use finer grade paper 600-grit smooth out scratches earlier paper made Third using very soft cloth old T-shirts work well jewelers rouge available stick form polish out sandpaper scratches Finally use soft cloth lot elbow grease apply Brasso brass polish Depending severity blemish might able start midtechnique event conscientious effort should able restore models clear plastic parts pristine condition Keep big uns flying RC SoaringlBlakeslee Continued page 61 160-in-span super ships can ranged over area still seen However Brits use spotlanding bonus F31 will have same F3B landing tape big ships will disadvantage making landing points Choosing optimum glider depends lot weather Calm light conditions will favor floaters heavier faster ships will better windy weather rapidly moving thermals make prediction Id say popular all-around F3J glider will 30 35 meters wingspan have ailerons flaps computer radio controlled built light about l0-oz/sq-ft minimum wing loading capable carrying ballast bring wing loading up about 16 ozisq ft other words bigger F3B ship Ill have hand-towing technique equipment upcoming columns 171 continued page 176 August 1992 UNLEASH POWER WITHIN IZE its AWESOME Bigger Engine Won t Fit MORE POWER 5 WillBIGGER PROPS Over 4in toCOOL RUNNING Well w2000 NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels rid 75 stamped #10 SASE & $200 e PO Box 141 ord CT 06460 ivioael Diesel Technology Since 1975 Zs. L LATHES MILLS METALS EOOKS PRECISION INSTRUMENTS 7jT-- CQNPfETE CATALOG $200 100Gb stems --CAMP BELL TOOLS Co 2100 M Sob, Road beobogfi2d 00 45505 513 3228562 OOPUTEPIZED IPCPAFT PLOTS Technical Illustrations Suitable Framing Scde afting cud Scoriing S&vces 3 Views D-TECH SYSTEMS Cabk stoo APC PROPELLERS Sound Supression Design High Thrust Efficiency Long Fiber Advanced Composite Material Proven Performance US Masters US Nationals Canadian Nationals World Championships SPORTS SIZES 57x36x27x345678910$159 8x45678910$179 9x45678910$199 95x 45 lOx 345678910$229 11x3456789$249 115x 4 12 x 678$289 13x6$425 REVERSE PITCH PUSHER 9x6 10x6 7 8 11 x67$395 COMPETITION 63 x4 65x 37 78x 467 9 x 65 85 95x 65N 7N 75N 8N 85N 1O5x 45$395 11 xlO 11 1212W 1314 12x9 9W 1010W 11 uN 11512 12N 12513 13N 14 125x 9101111512 12513 13 x 910$795 135x 910125 13314 14 x 68101213 13514 144x 1051213 145x 14N 15 x 8 10111216x81012$1295 MULTIBLADE onent Propeller Systems 2-blade18081012$2200 20x6 10 12 14$2500 2208 10 12 14 16$3100 24010121416$3800 3-Blade17 1018 10 19 xli$3300 20x10121421x12$3700 22x10 12 14 16$4600 24x10 12 14 16$5500 Multi Blade Hubs2-Blade 16-19 dia$3000 2-Blade 20-21 dia$3500 2-Blade 22 dia$4000 2-Blade 24 dia$6000 3-Blade 17-19 dia$4500 3-Blade 20-21 dia$5500 3-Blade 22 dia$6500 3-Blade 24 dia$9000 Contact local hobby dealer first doesnt have what need order direct 916-661-6515 Manufactured Landing Produce PO So 939 Knights Landing CA e5e45 176 Model Aviation UNIVERSAL STRAP ON older engines muffler bolts 29-46 JT-40P $2196 61-61 JT-60P $2396 ASP 91-108 JT-A9IP $2496 Pitts-Style Mufflers UNIVERSAL BOLT ON side mounted engines Will fit 90% engines made after 1989 Easy attach Just bait muffler engine factory muffler baits bolts supp- muffler JT-4OPB 29-45 $2296 MAIL ORDUIS Picase add $250 UPS shipping Check MO Visa MC COD actepted Add $400 estra COD California residents add 9% saies tax RC SoaringlBlakeslee Continued page 171 Masters Soaring Space restrictions usually dont allow printing much way contest results Masters such special contest think contestants deserve recognized among top fliers hobby sure what doing flying will eventually influence competition flying report SWSA newsletter editor Don McColgan 1992 Masters Soaring competition opened Saturday March 21 Silent Wings Soaring Association SWSA field Covina California Thirtyfive top glider fliers braved spring rains participate 16 scheduled rounds tough competition Due rain eight Saturdays rounds completed three Sunday participate contest flier must have achieved LSF Level V Level IV contest points Level V must hold National record must have won major two-day national regional contest Saturday started three-minute Precision Duration warm-up followed four- seven- 10-minute triathalon Round five five-minute precision six seven-minute duration seven threeminute precision eight six-minute duration event landings either runway spot adding maximum 40 points rules made flying time paramount importance scoring precision rounds vesy steep Thirty seconds off goal resulted zero flight score storm clouds provided lots turbulence lift sink few showers well some gusty winds during some landings contest meant easy Round ended five perfect scores 1000 points six-place tie sixth scores 9946 close round eight Saturday Joe Wurts led iT-MIXUPMAX 91-1962996 JT-STSUPCOMO ST 61-75902750 JTST2SPST 2505-258950002996 JTBCXP OS MAX BOXi 3496 JT5T45PST 0-45003496 VERY OUIUT BOlTS DiiSEC1LYTO ENCINE MOONliNO BOLTS EXHAUST EXTENSION TUBINO ANt CLAMPS INCLUDED A/Nm U mm, 69681 points followed Daryl Perkins 69463 Dan Fink third 68334 points Sunday opener three-minute precision Round 10 another sevenminute precision duration last round four-minute precision three rounds required spot landings using eightfoot tapes divided four two-foot segments counting 10 20 30 40 points total 15 perfect rounds flown winner Joe Wurts earning five second place finisher Daryl Perkins earning four Wurts hit 11 perfect landings 11 flights popular airplane year Airtronics Legend 10 followed Falcon 9 popular brand transmitter Airtronics 25 19 Visions six radios used computer types equipment well some excellent eyesight allowed fliers venture long way field search lift Full camber control used top pilots Flaps ailerons helped make landings look easy gusty winds Tim Renaud Airtronics generously donated Sagitta 600 Olympic 650 kits workers raffle Hobby Dynamics donated JR dual transmitter case plus some JR hats Bob Massmann President NSS provided coffee mugs NSS T-shirts merchandise raffled off SWSA folks hosted contest provided labor well free coffee donuts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Joe Wurts Daryl Perkins Fred Weaver C George Larry Jolly Brad Clasen Jim Thomas Gary Anderson Steve Clasen Ben Clerx Skip Miller Craig Foxgord Myles Moran Don Edberg r Exhaust extensions worm drive mounting stral inClUded JT-6OPB 51-61 $2496 15George Joy 16SGeorge 17Mike Reagan 18JGeorge 19Tim Renaud 20Dan Fink 21Jim McCarthy 22Randy Spencer 23Don Vickers 24Todd Biliman 25Bob McGowan 26F Leppla 27Mike Fritz 28Steve Addis 29Don Tatum 30Ian Douglas 31Pete Russell 32Keith Kindrick 33John Brown 34Pete Carr 35Ray Olsen Finishing obechi letter printed above Brian Agnew mentioned gone obechi wing skins kits Bob Dodgson Mark Allen have switched also Asher Carmichaels article using obechi furniture veneers wing skins appeared May June columns received quite bit favorable comment So think obechi other veneers going seen more offer advantages over balsa available large sheets splicing isnt required ding resistant can finished just light lighter much expensive next question What exactly best way finish wood go right source Dave Acker Daves Wood Products probably modelers principal source obechi large sheets Dave kind enough drop letter include description own newly developed finishing method Before getting however let give address Daves Wood Products #7 Creekpark Ct Roswell GA 30076 telephone number 404 642-0645 Send SASE price list Now over Dave finishing system several ways finish surface obechi wings will outline ones have tried seem work well Undoubtedly other finishing systems will work try out different systemand worksplease let know will share others first two steps general instructions finishing obechi after has attached wing coreand after leading edges tips caps have added sanded 1 Sand obechi 150- 250-grit sandpaper 2 Vacuum wing use tack rag remove remaining dust Note use damp cloth rather tack rag Ruff Stuff$135 i Glue TipsAdd 20% total order shipping 4for$110 Lots Good Stuff Tee AppIied Design Corporation $310 11 L2fl3/ PO Box 3384 Torrance CA 90610$465 22 Mini Saw $925 $285 tough nails clean up water Color trimming can done after finishing spray painting application plastic film 3 Apply coat Flecto Varathane Diamond Finish buy Home Depot seal wood keep out water wet-sand subsequent coats apply using cheap foam brush 4 Next apply coat filler using old credit card can use Model Magic comparable filler Since Im cheap August1992 177 7 om Shapes Available Stay Tray $210 V intend use water-based finishes described below point wings can covered low-temperature film such Black Baron Use damp cloth right behind iron make sure film stuck wood following steps applied finishing system quick allows wood grain show Recently have several water-based urethane finishes available home woodworker finishes nontoxic virtually odorless wpack ts made high-qualify balsa plywood May flown 05 eleckic power 049 11 glow-engine power Pads instructions both versions included its compact Ready fly easily fits backseat car Offers solid big-plane pedonnance its small plane flies like 40 $4995 Accepts standard-size servosList Wingspan f 4 aches uu square mcnes WeIght 7 ouncesbare airframeSe yell hahhy dealer first deeset 22 28 ouncesready fly glow poweredstock SNAPPED ertler direct fi nnnepnmndv liv Iefeetric owsreiflInclude $250 S&H direct orders BATFERY MANAGEMENT System MOSFET nicad cycler $14995 MOSIET nicad ccler designed specilically planes boats helicopters 3 overnight/trickle outputs capable charging 1 to9 cells infinitely adjustable FIX overnight charge current ability discharge both FIX TX packs digital discharge timer 3 outputs allow simultaneous separate charging ofsur FIX TX AUXILIARY eg glow plug starter battetyl nicads Nicads will charge overnight rate 17 hours 4 minutes before automatically switching trickle rate Adjustable control allows charging FIX pack up 2000 mAli capacity TX output can discharge 8 9 cell packs 300 mA RX output can discharge 4 5 cell packs 300 500 mA True Constant Current sources used charge/discharge modes power up fiNS ONE will always come up overnight charge mode ensuring Itilly charged batteries event momentary 110 solt power loss Utilizing Current Detection Circuitry LEDs can illuminate current actually flowing out batteries Large digital display anti-glare filter shows fiX TX discharge times Unique CAPACITY CALCULATOR will allow milliampere-hour rating batteries determined Prepeid-dees MoneyOdetotCertttiedChects Snppnq & Handling $700 COO 0-dee Gash 0 Caditod Cheds collected delaety Add 0000 above amounts FACTORY DIRECT ONLY plces Spedficaloes Sabjed __________________________________________________________ Change Without notice DesIgned ad Manutactared LISA m m ...... Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Baflys Resort Hotel Casino Rti irday Sunday August 22-23 992 OB81 0 Ml 7992 Planes Trains Cars Boats Demonstrations Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free Sponsored Reno Radio Control Club AMA 0696 booth show information call Val Young 702/3S9-08 14 U U m m m m m m m U U U U U U P COOLOn BIGGEST SCOLE PLANS 0 novAe no,n Pioc, 0000k Art 5e C, 0C tOO PAGE CATALOG SCALE OOCOMEu0onton seonooc 07 COOLt 00CC OCt00 0009 Madto A. O,o5eo NC 0000 St St 202-5209 use Red Devil Time Spacklingagain Home Depot stuff will dry white thus leave fine white lines grain wing bothers mix some color filler before put wing get color local craft store called Ceramcoat Delta find flesh tone works well obechi can use coloring material compatible water-based paints Just mix enough color filler approximate color wood Spread filler thinly let dry few minutes scrape off excess going 450 angle credit card Let dry completely wet-sand back down wood 150- 250-grit paper What should remain just enough filler fill wood grain feel necessary repeat step Caution Make sure sanded surface completely dry before proceed next step 5 Use paper towel wipe thin coat sealer Varathane Let dry wet-sand Wipe off surface wet towel cloth let dry again Repeat step times like Just remember use paper towel will putting very thin light coats Wet-sand after application find four coats works fine can really get carried away trying furniture finish too much weight penalty have used above system Falcon 600 four coats finish added 125 oz weight just covered film would have added three ounces Some guys experimenting adding color pigment Varathane seems work out well fact has wing streaks blue red green looks like tie-dyed shirt sure hope never lands grasshell never find use fluorescent-colored film wing tips flaps apply reflecting silver strip along leading edge get flash ship turns sun Caution use some other brands finishes make sure compatible other testing concoction scrap piece woodpreferably open field away women children Super cautions 1 sanding finishing have adequate ventilation garage fan running doors windows open Protect lungs sanding wood 2 Always try out adhesives finishing materials scrap foam wood before use wings foam wood disappears goes up smoke try another product 3 use epoxy adhere wood cores its good idea put wax paper between obechi core beds Sometimes epoxy will bleed through obechi stick beds wings would certainly prove interesting doubt resultant lift-to178 Model Aviation RK ELECTRONICS IEINOVATWE ELECThONICS DepL 262 304 Faa Rae ttudaca 1411 03051 603-882-6022 mu Antiques Military Civilian Helicopters Sailplane IOver 3300 different20000 plus 3-view color FOTO-PAAKSIncluding KOKIJ-FAN drag ratio would give desired performance Note Some people mix microballoons epoxy apparently stops bleed-through problem provides lighter wing Another method coat inside face wood light coat waterbased urethane noted above Let dry use epoxy before apparently also helps using 3M 77 spray adhesive Another great product found Home Depot No dont own stock new sanding product called Rinsen Reuse NICSAND Inc stuff cloth-backed aluminum oxide bonded foam pad extra strength durability idea dust migrates through sanding surface foam backing can vacuumed washed away does clog can used over over Its available 60- 100- 150-grit use 150-grit exclusively working wings David B Fraser Scholarship Science Last month reported tragic death David Fraser crash Mooney Michael Selig coauthor Airfoils Low Speeds Soartech #8 David John Donovan sent letter telling scholarship fund named honor David Fraser family Fraser-Volpe Corp will make initial contribution fund Eligible recipients will selected student applicant pursuing studies either science engineering Memorial contributions endow fund may sent David B Fraser Scholarship Science Mr Jonathan Fraser 1335 Slayton Dr Maple Glen PA 19002 MARCS Symposium popular Madison Area RIC Societys National Sailplane Symposium scheduled October24 25 1992 will held Ramada Inn 3841 East Washington Ave Madison Wisconsin 53704 Call 608 244-2481 room reservations can arrive early usual day trip EAA Museum Oshkosh will Friday 23rd list speakers finalized write however symposium always interesting affair great windup flying season Its like Old Home Weekend Soaring set information contact Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 telephone 608 238-2321 rdlConover Continued page 83 10 Brush light thinned clear dope surfaces Sand fine paper Brush second coat Dont sand gripper area need good grip Dont worry about too much weight dope adds /2 gram need strength get maximum climb slick flying surfaces Now fun begins Three reasons CC-I makes good first flying training model 1 Its easy quick build repair 2 Its teaching tool shows tenderfoots adjust flying models key early success 3 Performance outstanding Can imagine effect Star Wars climb 10 times higher kids home Adjustments flight begin doing hand glides under mentors guidance could begine balancing model vee scissors CG point indicated plan its easier just test glide add spot clay nose Some will require no clay students picnic hand gliding models city council chambers too windy outside goal should get streaking tight spiral climb rolls out top may have bend slight amount down elevon rear wing opposite glide circle model must have glide circle youll lose downwind brush Try /32 right rudder glide turn 1h2 down elevon right rear wing starting trim should give safe left bank launch right glide circle kids get see what big difference small amount trim makes model flies model comes screaming down off top 9-G dive may have bend bit up elevon both sides Newtons laws paraphrased says reaction up elevon will push side wing down flight too loopy doesnt achieve much altitude try down elevon both sides prefer adjust main rear wing rudder sodacan adjuster strips help make fine trim adjustments stay put trimming phase ideal time teach students basics flight adjustment will apply flying models build future fullscale aircraft impact like teaching young person read write properly Both can have far-reaching effects rest lives Prelaunch catapult technique Make up catapult match fliers arm length Small kids need about seven-inch loop t/s4n FAI tan rubber 9 x 14-in dowel piece hard 14-in-sq balsa Longer arms can use nine-inch 1oop nine-inch catapult 10-inch loop 10-inch stick 1oop too long model will catch flop SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AD U 5InUInIA V OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIIT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT l/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1992 179 NEW PRODUCT NEW PRODUCT NEW PRODUCT NEW PRODUCT AIRFOIL DATA DISKS FOILED AGAINW Now popular demand shipping disks ready-made airfoils use FOILED AGAINIII MORE THAN 50 AIRFOIL DATA FILES ON EACH DISK IN NEW STANDARDIZED DATA FORMAT ILLUSTRATED 58-PAGE MANUAL WITH MULTIPLE PLOTS & COORDINATE DATA FOR EACH AIRFOIL Disk Selig-Donovan Eppler other Airfoils Disk B NACA Symmetric Cambered Airfoils EHRHRRH TOILED AGAIN VT 3D RI Ale ORDER YOUR COPIES NOW $2500 OVERSEAS UPPERS 53500 US PER RTSIR WATCH OUR ADS TSR NFl SOT OTHER DATA DISK RELEASES CYGNET Software 619 792-8021 3525 Del Mar Heights #2375 San Diego CA 92130 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE 9 Add soda-can adjuster strips No 8 pin catapult attachment point Coat thinly glue
Edition: Model Aviation - 1992/08
Page Numbers: 62, 63, 171, 176, 177, 178, 179
V RADIO CONTROL John de Vries 4610 Moffat Lane Colorado Springs CO 80915 WERE GOING start months column endthe back end Giant Scale model Dont kiiow youve noticed majority Big Birds drag tails Except used occasional warbird tricycle gears few far between leaves us couple ways keep rudder getting ground offa tail skid tail wheel Being devoted authentic representations full-size airplanes often stuck what full-scale craft used support rear fuselage general tail skids used during era airports nothing grass fields Skids worked well grass functioned brakes early birds didnt have binders wheelsas did paved runways came onto scene tail wheels came vogue Pilots found concrete tendency wear tail skid shoes rapidly make takeoffs difficult because rear ends planes would slip slide hard surfaces late 1930s aircraft tail wheels Giant Scale modelers have big advantage comes duplicating tail supports replicas can copy full-size arrangements last nut bolt scale parts big enough detailed reproduction World War tail skids little pivoted devices made hardwood metal pivot bar mounted across lower longerons upper end skid attached hungee rubber cord added bit spring action lower end shod metal shoe Some skids made leaves spring steel gained degree shock absorption skid itself Ground maneuverability fixed skid marginal best often couple wing walkers needed help pilot taxi Alone pilot faced delicate task blasting throttle elevator neutral rudder full over direction wanted turn Too much throttle propeller got lot shorter hit ground As tail skids improved 1 920s rounded cast metal shoes used could edged right left hard ground improved pilots ability slide around bit throttle lot rudder Eventually aircraft designers came up steerable tail skids attached rudder cables really helped ground maneuverability As noted above tail skids paved runways dont mix Takeoffs dicey model has fixed skid because dont have much directional control until airspeed great enough permit rudder effective Too-rapid application throttle early takeoff roll sure produce ground loop model needs tail skid can choose several remedies eliminate problems posed concrete asphalt runways Scale purist tail skid may split small tail wheel inserted properly done wheel will almost invisible its lower edge projecting doesnt take much horseback engineering develop invisible tail skid steering mechanism can contained rear fuselage Either technique will ease takeoff directional control woes maintaining scale appearance elaborate system skid-equipped birdsand has full-scale counterpartis build two tail skid modules Either can bolted steering mechanism within fuselage provide plug-in skid tail wheel youre flying off grass scale skid would used field has runway loosening setscrew replacing skid tail wheel simple operation steering mechanism can include necessary shock absorption Either 62 Model Aviation Nicholas Madonias Aeromaster 150 150% enlargement Lou Andrewss Aeromaster using Quadra 52 Nicks next project will Giant Beech Bonanza ipIane leti standard Aeromaster right Madonias Want version inherited excellent flying characteristics original model IJICK icnenor 15-scale IIflSUfl L0 I8KOTT roll LuCK uia iriena DI dUnn S IrOlil Chino Hills California designed scratch built WW II liaison aircraft model AFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $500 BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion andComputer Designed3 Axis Control Reserve Grand Champion UltralightPart 103 UltralightEasy Construction 1989 Sun-N-Fun Fly-In* Wood Construction TEAM INC BOX 338M BRADY VILLE TN 37026 615 765-5397 WALNUT CA91789 7145941349 594 1471 CALL OR WRITE FOR FREE BROCHURE heavy-duty rubberbands better yet metal spring can used Screen door springs seem work well either singly dual installations can cut needed length pair wire cutters Would believe Two-thirds letters yours truly receives readers column about photographs beautiful Giant Scale models picture generate tremendous amount interest writer usually wants get touch models builderto learn drawings used what special building problems solved building techniques involved completing bird instances keep builders name address backup envelope others should able provide further reference knowledgeable person wholl able get writer builder together Other writers questions require bit research happily have rather complete library back up answers library recently augmented review copy John C Fredriksen s book Flying Model Warplanes published Air Age Publishing 251 Danbury Rd Wilton CT 06897 telephone 800 243-6685 book has 8000 individual entries covering plans kits military aircraft models over world data base includes everything Peanuts Giant Scale covers entire history aviation John includes prices drawings kits accessories very great value comprehensive listing suppliers Mr Fredriksen intends update book three years book well worth $1495 price plus $3 shipping handling puts lot valuable interesting data fingertips Giant Scale builders believe old cliche Real airplanes have round engines two wings therell heck show Lake Guntersville Aerodrome Alabama September 5 6 7 Hank Iltzsch wrote tell about Aerodrome 92 gathering over 150 WW full-scale aircraft thatll complemented whole bunch Giant Scale models Great War era daily flying exhibitions will include Fokkers Albatroses SF-5s plus host other toothsome ancient fighters reconnaissance craft should some kind showWorld War air original cast Nicholas Madonia Palm Coast Florida posed interesting question sent photographs Aeromaster 150 model reverse-scale version Lou Andrewss venerable biplane Nick wondered bird appropriate column wrote assure him because Im guided IMAA definition Giant models its big un Im happy include pages Nick enlarged Aeromaster drawings 150% stuck Quadra 52 nose 79-in-span model duplicated Andrews lockbox construction originalto dismay turned out says model should have weighed 18 20 lb ended up weighing 25 lb because extra structure event big Aeromaster flies better original Great ideaenlarging proven model Giant dimensions Well leave month hint may reduce frustration factor around workbench trickier tasks model builders face fixing canopy windshield place transparent material useusually clear plasticis prone scratching Continued page 171 August1992 63 Left Hank lltzschs 113-scale Giant Sopwith Pup Right Sopwith Pups scale tail skid Hank Seekonk Massachusetts used Jim Kigers excellent drawings produce beauty currently resides Owls Head Museum Maine similar described above comparable models tape mere 12 bucks plus postage about half hour long Its available Astro cannot watch tape still believe Electric no good Please include SASE correspondence youd like reply Happy Quiet Summertime Electric Everyone RO OiantsldeVrios Continued page 63 Scratches unsightly theyre nonscale once glob glue drops windshield/canopy produces manner ugly language globs its good idea remove much glue possible before sets wait until residue dries Scratches globsfrom out techniques same Begin attacking glob/scratch some 400-grit sandpaper things out well can trying minimize size sanded area Work slowly carefully Next use finer grade paper 600-grit smooth out scratches earlier paper made Third using very soft cloth old T-shirts work well jewelers rouge available stick form polish out sandpaper scratches Finally use soft cloth lot elbow grease apply Brasso brass polish Depending severity blemish might able start midtechnique event conscientious effort should able restore models clear plastic parts pristine condition Keep big uns flying RC SoaringlBlakeslee Continued page 61 160-in-span super ships can ranged over area still seen However Brits use spotlanding bonus F31 will have same F3B landing tape big ships will disadvantage making landing points Choosing optimum glider depends lot weather Calm light conditions will favor floaters heavier faster ships will better windy weather rapidly moving thermals make prediction Id say popular all-around F3J glider will 30 35 meters wingspan have ailerons flaps computer radio controlled built light about l0-oz/sq-ft minimum wing loading capable carrying ballast bring wing loading up about 16 ozisq ft other words bigger F3B ship Ill have hand-towing technique equipment upcoming columns 171 continued page 176 August 1992 UNLEASH POWER WITHIN IZE its AWESOME Bigger Engine Won t Fit MORE POWER 5 WillBIGGER PROPS Over 4in toCOOL RUNNING Well w2000 NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels rid 75 stamped #10 SASE & $200 e PO Box 141 ord CT 06460 ivioael Diesel Technology Since 1975 Zs. L LATHES MILLS METALS EOOKS PRECISION INSTRUMENTS 7jT-- CQNPfETE CATALOG $200 100Gb stems --CAMP BELL TOOLS Co 2100 M Sob, Road beobogfi2d 00 45505 513 3228562 OOPUTEPIZED IPCPAFT PLOTS Technical Illustrations Suitable Framing Scde afting cud Scoriing S&vces 3 Views D-TECH SYSTEMS Cabk stoo APC PROPELLERS Sound Supression Design High Thrust Efficiency Long Fiber Advanced Composite Material Proven Performance US Masters US Nationals Canadian Nationals World Championships SPORTS SIZES 57x36x27x345678910$159 8x45678910$179 9x45678910$199 95x 45 lOx 345678910$229 11x3456789$249 115x 4 12 x 678$289 13x6$425 REVERSE PITCH PUSHER 9x6 10x6 7 8 11 x67$395 COMPETITION 63 x4 65x 37 78x 467 9 x 65 85 95x 65N 7N 75N 8N 85N 1O5x 45$395 11 xlO 11 1212W 1314 12x9 9W 1010W 11 uN 11512 12N 12513 13N 14 125x 9101111512 12513 13 x 910$795 135x 910125 13314 14 x 68101213 13514 144x 1051213 145x 14N 15 x 8 10111216x81012$1295 MULTIBLADE onent Propeller Systems 2-blade18081012$2200 20x6 10 12 14$2500 2208 10 12 14 16$3100 24010121416$3800 3-Blade17 1018 10 19 xli$3300 20x10121421x12$3700 22x10 12 14 16$4600 24x10 12 14 16$5500 Multi Blade Hubs2-Blade 16-19 dia$3000 2-Blade 20-21 dia$3500 2-Blade 22 dia$4000 2-Blade 24 dia$6000 3-Blade 17-19 dia$4500 3-Blade 20-21 dia$5500 3-Blade 22 dia$6500 3-Blade 24 dia$9000 Contact local hobby dealer first doesnt have what need order direct 916-661-6515 Manufactured Landing Produce PO So 939 Knights Landing CA e5e45 176 Model Aviation UNIVERSAL STRAP ON older engines muffler bolts 29-46 JT-40P $2196 61-61 JT-60P $2396 ASP 91-108 JT-A9IP $2496 Pitts-Style Mufflers UNIVERSAL BOLT ON side mounted engines Will fit 90% engines made after 1989 Easy attach Just bait muffler engine factory muffler baits bolts supp- muffler JT-4OPB 29-45 $2296 MAIL ORDUIS Picase add $250 UPS shipping Check MO Visa MC COD actepted Add $400 estra COD California residents add 9% saies tax RC SoaringlBlakeslee Continued page 171 Masters Soaring Space restrictions usually dont allow printing much way contest results Masters such special contest think contestants deserve recognized among top fliers hobby sure what doing flying will eventually influence competition flying report SWSA newsletter editor Don McColgan 1992 Masters Soaring competition opened Saturday March 21 Silent Wings Soaring Association SWSA field Covina California Thirtyfive top glider fliers braved spring rains participate 16 scheduled rounds tough competition Due rain eight Saturdays rounds completed three Sunday participate contest flier must have achieved LSF Level V Level IV contest points Level V must hold National record must have won major two-day national regional contest Saturday started three-minute Precision Duration warm-up followed four- seven- 10-minute triathalon Round five five-minute precision six seven-minute duration seven threeminute precision eight six-minute duration event landings either runway spot adding maximum 40 points rules made flying time paramount importance scoring precision rounds vesy steep Thirty seconds off goal resulted zero flight score storm clouds provided lots turbulence lift sink few showers well some gusty winds during some landings contest meant easy Round ended five perfect scores 1000 points six-place tie sixth scores 9946 close round eight Saturday Joe Wurts led iT-MIXUPMAX 91-1962996 JT-STSUPCOMO ST 61-75902750 JTST2SPST 2505-258950002996 JTBCXP OS MAX BOXi 3496 JT5T45PST 0-45003496 VERY OUIUT BOlTS DiiSEC1LYTO ENCINE MOONliNO BOLTS EXHAUST EXTENSION TUBINO ANt CLAMPS INCLUDED A/Nm U mm, 69681 points followed Daryl Perkins 69463 Dan Fink third 68334 points Sunday opener three-minute precision Round 10 another sevenminute precision duration last round four-minute precision three rounds required spot landings using eightfoot tapes divided four two-foot segments counting 10 20 30 40 points total 15 perfect rounds flown winner Joe Wurts earning five second place finisher Daryl Perkins earning four Wurts hit 11 perfect landings 11 flights popular airplane year Airtronics Legend 10 followed Falcon 9 popular brand transmitter Airtronics 25 19 Visions six radios used computer types equipment well some excellent eyesight allowed fliers venture long way field search lift Full camber control used top pilots Flaps ailerons helped make landings look easy gusty winds Tim Renaud Airtronics generously donated Sagitta 600 Olympic 650 kits workers raffle Hobby Dynamics donated JR dual transmitter case plus some JR hats Bob Massmann President NSS provided coffee mugs NSS T-shirts merchandise raffled off SWSA folks hosted contest provided labor well free coffee donuts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Joe Wurts Daryl Perkins Fred Weaver C George Larry Jolly Brad Clasen Jim Thomas Gary Anderson Steve Clasen Ben Clerx Skip Miller Craig Foxgord Myles Moran Don Edberg r Exhaust extensions worm drive mounting stral inClUded JT-6OPB 51-61 $2496 15George Joy 16SGeorge 17Mike Reagan 18JGeorge 19Tim Renaud 20Dan Fink 21Jim McCarthy 22Randy Spencer 23Don Vickers 24Todd Biliman 25Bob McGowan 26F Leppla 27Mike Fritz 28Steve Addis 29Don Tatum 30Ian Douglas 31Pete Russell 32Keith Kindrick 33John Brown 34Pete Carr 35Ray Olsen Finishing obechi letter printed above Brian Agnew mentioned gone obechi wing skins kits Bob Dodgson Mark Allen have switched also Asher Carmichaels article using obechi furniture veneers wing skins appeared May June columns received quite bit favorable comment So think obechi other veneers going seen more offer advantages over balsa available large sheets splicing isnt required ding resistant can finished just light lighter much expensive next question What exactly best way finish wood go right source Dave Acker Daves Wood Products probably modelers principal source obechi large sheets Dave kind enough drop letter include description own newly developed finishing method Before getting however let give address Daves Wood Products #7 Creekpark Ct Roswell GA 30076 telephone number 404 642-0645 Send SASE price list Now over Dave finishing system several ways finish surface obechi wings will outline ones have tried seem work well Undoubtedly other finishing systems will work try out different systemand worksplease let know will share others first two steps general instructions finishing obechi after has attached wing coreand after leading edges tips caps have added sanded 1 Sand obechi 150- 250-grit sandpaper 2 Vacuum wing use tack rag remove remaining dust Note use damp cloth rather tack rag Ruff Stuff$135 i Glue TipsAdd 20% total order shipping 4for$110 Lots Good Stuff Tee AppIied Design Corporation $310 11 L2fl3/ PO Box 3384 Torrance CA 90610$465 22 Mini Saw $925 $285 tough nails clean up water Color trimming can done after finishing spray painting application plastic film 3 Apply coat Flecto Varathane Diamond Finish buy Home Depot seal wood keep out water wet-sand subsequent coats apply using cheap foam brush 4 Next apply coat filler using old credit card can use Model Magic comparable filler Since Im cheap August1992 177 7 om Shapes Available Stay Tray $210 V intend use water-based finishes described below point wings can covered low-temperature film such Black Baron Use damp cloth right behind iron make sure film stuck wood following steps applied finishing system quick allows wood grain show Recently have several water-based urethane finishes available home woodworker finishes nontoxic virtually odorless wpack ts made high-qualify balsa plywood May flown 05 eleckic power 049 11 glow-engine power Pads instructions both versions included its compact Ready fly easily fits backseat car Offers solid big-plane pedonnance its small plane flies like 40 $4995 Accepts standard-size servosList Wingspan f 4 aches uu square mcnes WeIght 7 ouncesbare airframeSe yell hahhy dealer first deeset 22 28 ouncesready fly glow poweredstock SNAPPED ertler direct fi nnnepnmndv liv Iefeetric owsreiflInclude $250 S&H direct orders BATFERY MANAGEMENT System MOSFET nicad cycler $14995 MOSIET nicad ccler designed specilically planes boats helicopters 3 overnight/trickle outputs capable charging 1 to9 cells infinitely adjustable FIX overnight charge current ability discharge both FIX TX packs digital discharge timer 3 outputs allow simultaneous separate charging ofsur FIX TX AUXILIARY eg glow plug starter battetyl nicads Nicads will charge overnight rate 17 hours 4 minutes before automatically switching trickle rate Adjustable control allows charging FIX pack up 2000 mAli capacity TX output can discharge 8 9 cell packs 300 mA RX output can discharge 4 5 cell packs 300 500 mA True Constant Current sources used charge/discharge modes power up fiNS ONE will always come up overnight charge mode ensuring Itilly charged batteries event momentary 110 solt power loss Utilizing Current Detection Circuitry LEDs can illuminate current actually flowing out batteries Large digital display anti-glare filter shows fiX TX discharge times Unique CAPACITY CALCULATOR will allow milliampere-hour rating batteries determined Prepeid-dees MoneyOdetotCertttiedChects Snppnq & Handling $700 COO 0-dee Gash 0 Caditod Cheds collected delaety Add 0000 above amounts FACTORY DIRECT ONLY plces Spedficaloes Sabjed __________________________________________________________ Change Without notice DesIgned ad Manutactared LISA m m ...... Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Baflys Resort Hotel Casino Rti irday Sunday August 22-23 992 OB81 0 Ml 7992 Planes Trains Cars Boats Demonstrations Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free Sponsored Reno Radio Control Club AMA 0696 booth show information call Val Young 702/3S9-08 14 U U m m m m m m m U U U U U U P COOLOn BIGGEST SCOLE PLANS 0 novAe no,n Pioc, 0000k Art 5e C, 0C tOO PAGE CATALOG SCALE OOCOMEu0onton seonooc 07 COOLt 00CC OCt00 0009 Madto A. O,o5eo NC 0000 St St 202-5209 use Red Devil Time Spacklingagain Home Depot stuff will dry white thus leave fine white lines grain wing bothers mix some color filler before put wing get color local craft store called Ceramcoat Delta find flesh tone works well obechi can use coloring material compatible water-based paints Just mix enough color filler approximate color wood Spread filler thinly let dry few minutes scrape off excess going 450 angle credit card Let dry completely wet-sand back down wood 150- 250-grit paper What should remain just enough filler fill wood grain feel necessary repeat step Caution Make sure sanded surface completely dry before proceed next step 5 Use paper towel wipe thin coat sealer Varathane Let dry wet-sand Wipe off surface wet towel cloth let dry again Repeat step times like Just remember use paper towel will putting very thin light coats Wet-sand after application find four coats works fine can really get carried away trying furniture finish too much weight penalty have used above system Falcon 600 four coats finish added 125 oz weight just covered film would have added three ounces Some guys experimenting adding color pigment Varathane seems work out well fact has wing streaks blue red green looks like tie-dyed shirt sure hope never lands grasshell never find use fluorescent-colored film wing tips flaps apply reflecting silver strip along leading edge get flash ship turns sun Caution use some other brands finishes make sure compatible other testing concoction scrap piece woodpreferably open field away women children Super cautions 1 sanding finishing have adequate ventilation garage fan running doors windows open Protect lungs sanding wood 2 Always try out adhesives finishing materials scrap foam wood before use wings foam wood disappears goes up smoke try another product 3 use epoxy adhere wood cores its good idea put wax paper between obechi core beds Sometimes epoxy will bleed through obechi stick beds wings would certainly prove interesting doubt resultant lift-to178 Model Aviation RK ELECTRONICS IEINOVATWE ELECThONICS DepL 262 304 Faa Rae ttudaca 1411 03051 603-882-6022 mu Antiques Military Civilian Helicopters Sailplane IOver 3300 different20000 plus 3-view color FOTO-PAAKSIncluding KOKIJ-FAN drag ratio would give desired performance Note Some people mix microballoons epoxy apparently stops bleed-through problem provides lighter wing Another method coat inside face wood light coat waterbased urethane noted above Let dry use epoxy before apparently also helps using 3M 77 spray adhesive Another great product found Home Depot No dont own stock new sanding product called Rinsen Reuse NICSAND Inc stuff cloth-backed aluminum oxide bonded foam pad extra strength durability idea dust migrates through sanding surface foam backing can vacuumed washed away does clog can used over over Its available 60- 100- 150-grit use 150-grit exclusively working wings David B Fraser Scholarship Science Last month reported tragic death David Fraser crash Mooney Michael Selig coauthor Airfoils Low Speeds Soartech #8 David John Donovan sent letter telling scholarship fund named honor David Fraser family Fraser-Volpe Corp will make initial contribution fund Eligible recipients will selected student applicant pursuing studies either science engineering Memorial contributions endow fund may sent David B Fraser Scholarship Science Mr Jonathan Fraser 1335 Slayton Dr Maple Glen PA 19002 MARCS Symposium popular Madison Area RIC Societys National Sailplane Symposium scheduled October24 25 1992 will held Ramada Inn 3841 East Washington Ave Madison Wisconsin 53704 Call 608 244-2481 room reservations can arrive early usual day trip EAA Museum Oshkosh will Friday 23rd list speakers finalized write however symposium always interesting affair great windup flying season Its like Old Home Weekend Soaring set information contact Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 telephone 608 238-2321 rdlConover Continued page 83 10 Brush light thinned clear dope surfaces Sand fine paper Brush second coat Dont sand gripper area need good grip Dont worry about too much weight dope adds /2 gram need strength get maximum climb slick flying surfaces Now fun begins Three reasons CC-I makes good first flying training model 1 Its easy quick build repair 2 Its teaching tool shows tenderfoots adjust flying models key early success 3 Performance outstanding Can imagine effect Star Wars climb 10 times higher kids home Adjustments flight begin doing hand glides under mentors guidance could begine balancing model vee scissors CG point indicated plan its easier just test glide add spot clay nose Some will require no clay students picnic hand gliding models city council chambers too windy outside goal should get streaking tight spiral climb rolls out top may have bend slight amount down elevon rear wing opposite glide circle model must have glide circle youll lose downwind brush Try /32 right rudder glide turn 1h2 down elevon right rear wing starting trim should give safe left bank launch right glide circle kids get see what big difference small amount trim makes model flies model comes screaming down off top 9-G dive may have bend bit up elevon both sides Newtons laws paraphrased says reaction up elevon will push side wing down flight too loopy doesnt achieve much altitude try down elevon both sides prefer adjust main rear wing rudder sodacan adjuster strips help make fine trim adjustments stay put trimming phase ideal time teach students basics flight adjustment will apply flying models build future fullscale aircraft impact like teaching young person read write properly Both can have far-reaching effects rest lives Prelaunch catapult technique Make up catapult match fliers arm length Small kids need about seven-inch loop t/s4n FAI tan rubber 9 x 14-in dowel piece hard 14-in-sq balsa Longer arms can use nine-inch 1oop nine-inch catapult 10-inch loop 10-inch stick 1oop too long model will catch flop SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AD U 5InUInIA V OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIIT SPARK PLUGS SILK S COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP 1/4 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 112A TEXACO PLAYBOY SR KIT l/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $350 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1992 179 NEW PRODUCT NEW PRODUCT NEW PRODUCT NEW PRODUCT AIRFOIL DATA DISKS FOILED AGAINW Now popular demand shipping disks ready-made airfoils use FOILED AGAINIII MORE THAN 50 AIRFOIL DATA FILES ON EACH DISK IN NEW STANDARDIZED DATA FORMAT ILLUSTRATED 58-PAGE MANUAL WITH MULTIPLE PLOTS & COORDINATE DATA FOR EACH AIRFOIL Disk Selig-Donovan Eppler other Airfoils Disk B NACA Symmetric Cambered Airfoils EHRHRRH TOILED AGAIN VT 3D RI Ale ORDER YOUR COPIES NOW $2500 OVERSEAS UPPERS 53500 US PER RTSIR WATCH OUR ADS TSR NFl SOT OTHER DATA DISK RELEASES CYGNET Software 619 792-8021 3525 Del Mar Heights #2375 San Diego CA 92130 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPSIII PROMPT SHIPMENT ON VISAIMC RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE 9 Add soda-can adjuster strips No 8 pin catapult attachment point Coat thinly glue