CONTROL LINE NAVY CARRIER CORRECTION February issue incorrectly listed Jim Kirby winner Rookie Year Award 1993 National Championships Navy Carrier Society real Rookie Year Terry Kirby Jims brother Sorry about error Terry Hope see youand brotherin Lubbock next summer Nationals National Aeromodeling Championships Lubbock Texas has publicized extensively Ill repeat location schedule information its relatively central location Lubbock should provide reasonable access large number Carrier modelers expect especially strong showing Dallas-Fort Worth area hope west coast Carrier fliers can attend distance wont discourage northeast should some outstanding competition Art Johnson has volunteered arduous task planning running Carrier events As being written jobs have allocated volunteers still need people willing lend helping hand able assist Carrier events Nationalseven part day contact Art 1818 Oslo Drive Rockford IL 61108 Tel 815 398-3490 addition normal Carrier events will traditional Carrier Awards Banquet annual meeting Navy Carrier Society As usual Navy Carrier Society will present two special awards Rookie Year honors will go contestant entering first Nationals Carrier competition award based performance sportsmanship Eugene Ely Award goes modeler having highest total score three classes Navy Carrier commemorates first man fly land Navy ship used cables sandbags arresting gear Elys openair Curtiss biplane would difficult model too practical competition has done Ted Kraver flew Buckeye Arizona Regionals early 1970s Following regular competition events Navy Carrier Society will sponsor Sportsman Profile Carrier anyone did enter Nationals Carrier events Normal Profile Carrier rules will used Although no firm sponsors time still six months away likely will 15 Carrier event well also possibility Carrier event Sig Skyray 35 model using rules annual Sig contest Details will appear Navy Carrier Society newsletter Sniper 15 Carrier 15 Carrier Aircraft F-4 Phantom II FJ-4 Fury Aloise Profile SBD Dauntless A-7 Corsair II MO-i AM-i Mauler F8F Bearcat OS2U Kingfisher Short Seamew F6F Hellcat F7F Tigercat Sniper 15 A1H Skyraider Boeing XF8B-1 AF-2S Guardian ARVt 287 423 381 445 403 507 481 487 442 518 530 560 473 616 590 677 27 27 35 36 37 38 41 42 45 50 50 52 55 57 58 60 model pictured month designed Bill Bischoff performs very well competition designed performance does represent actual aircraft no scale bonus points offered 15 Carrier capable low-speed times three minutes Its fine handling quality due its short nose relatively large tail volume ratio discussed later also allows model balanced farther aft possible some 15 Ken Smiths Sig Skyray 101st Screaming Eagles contest Whittier Narrows California Naccarato photo Tail Volume Ratio formula diagram Vt St x Sm x MAC Vt volume ratio St area lt moment arm area MAC Mean Aerodynamic Chord win g Carrier models sacrificing highspeed stability Wings made foam using prefabricated Halflite cores intended 1/2A Combat Plans available Bill 108 Model Aviation lip Sweeney Jrs first Carrier Curtiss Seamew Flying Models plans 15 Carrier Naccarato photo Sniper designed Bill Bischoff 15 Carrier competition Plan flying ability details text Jason Hayes original TBF Avenger Profile Carrier OS 35 rudder outboard aileron Naccarato photo SW St MAc MAC Bischoff 3734 Tuesdell Dallas TX 75244 Tel 214 247-5046 model listed reference purposes along fullscale prototype aircraft next section model design Carrier Model Selection years ago devoted column selecting prototype upon base CL Navy Carrier model Since style flying types models have changed considerably modelers learned gain optimum scores under current scoring system Ive received few calls since Nationals Carrier modelers seeking alternatives MO-l calls combined realization original ideas what makes good Carrier model no longer appropriate have prompted update information repeat subject Other relative simplicity MO-i design experience gained modelers using no good reasons selecting prototype over other fact good reason selecting MO-l its fuselage small know statement sounds backwards hear out smaller fuselage offers less drag larger models other factors overshadow drag fuselage drag producers cant avoided engine lines landing gear hook fixed Other hiding inside other parts model isnt anything can about drag produce Fuselage drag small comparison large fuselage conceals engine thus compensates increased fuselage drag reducing engine drag Control systems engine mounts fuel tanks easier fit larger fuselages fuselage large cross section can built lighter small fuselage still retain same strength dont usually build way least its option its fixed width fuselage Profile Carrier model different story smaller fuselage lighter two ways improve scores qr GENERIX P 0 Box 771 East Windsor NJ 08520 Orders 800-645-KITS Information 609-448-1122 Add $5 00 COD Write Free Catalog Custom Kit Cutters Plans Anyone Elses CL Navy Carrier go faster during high speed go slower during low speed no surprises statement Todays models slower flown before scoring change Since engine technology hasnt declined over last 15 20 years line sizes same reason has lie models three major contributors models bigger drag models heavier slower acceleration external lines line guides add drag Unfortunately little can about some factors need larger models overall scoring advantage get improved low-speed performance few prototypes lines can enclosed wing still obtain adequate line sweep reliable low-speed flight Weight can kept near old standards Class II models doing takes little effort As always speed primarily factor power limited contribution design prototype low-speed end equation factors important 20 years ago no longer important ones Lowspeed scores primarily factor wing loading Lighter wing loading produces better low-speed scores Because weights models components fixed way reduce wing loading increase wing area Wing flaps very common older models have lost importance under present method flying full stall Models flaps lighter easier build Since no longer need worry about complex flap configurations some prototypes options Since primary low-speed design consideration size good place start selecting design deciding what wing area use believe good low-speed performance model should have least 300 square inches wing area Few eligible prototypes cannot meet criteria Supermarine 322 few twin-engine patrol aircraft 250 square inches less built 44-inch span Lockheed U-2 yes legal prototype manages 135 square inches except Supermarine 322 designs GATOR $35 & HMIGHTY BATPLANE Span 38 380 sqin 15-$2250 & H Span 24 30 o 3 ch ht 2 3 lbs.$4400 & H Span 32 Kit builds two planesl & easy toeo o & H Span 48 build Easy ,nttradio d Class winner ign ages want tostructions win fly aiild & Fly Gator Notforsale $5 S & H AT RX-7 744 8995ng 32-46 5S&Hh 5-5 pan 48 ch radio d $5 S & H Span 42 15-32 ht 2-35 lass Design Flies like onlbs ormance very stable low & na ages instructions high speeds 3 Take Off llt say Build & Fly imited Knife Edge Rates [tI7RI es famous models big contests past come alive again Dave Thornburgs 300-page history American aeromodeling DO YOU SPEAK MODEL AIRPLANE first twin pusher latest Ugly Stik Dozens illustrations USA reds memories Order copy today Just $1995 postpaidcash check Visa/MO Pony X Press 5 Monticello Dr Albuquerque NM 87123 505 299-8749 Still Available OLD BUZZARDS SOARING BOOK 160 pgs about thermals $1695 pp JR Pal full-spectrum engine fuel treatment specially formulated R/C models Bends electro chemically metal smooth pitted surfaces Reduce friction & heat Improves performanci Reduce engine wear ces repair costs CAN BE USED AS RUN-OFF OIL TO CLEAIt ENGINES SEFORSAFTER AVAILABLE IN RANDY SQUEEZE BOTtlES OZ 5595 $1295 Ask Boca Bearings local hobby shop Call 4071 998-0004 Toll-free USA 800 332-3256 Toll-free Canada 800 553-3256 Faa 0rder 1407998-0119 send $300 catalog Name Aditreas City ________________ State Zip Boca Bearing Dept C Suite 2304 arh Rd Ratun FL 33433 June 1994 109 five minutes can upgraoe stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded supertough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case top * Guaranteed against breakage year * Why pay $3995 $2995 BBC-l Fits FUTABA 528/S 128 538/S 138 S48/S 148 Servos set 4$2595 ~-2As above set I$695 3Fits AIRYRONICS 94102 Servos set 4$2595 4As above set I$695 inw-5 Ball Bearing Only JR 501 507 RCD APOLLO 05 10 FOCUS H5300 H5500 ACE 330 342 342HS TOWER TS-5 Servos set 4$1995 Add $300 Shipping Handling orders 22406714 692-1393 Info Onlycalifornia Realdents Add 775% Satea Tax Yorba LiflaB t800 845-8978 Orders OnlyVISA MASTERCARD Accepted WindS~~Company 1405 Hopkins Ave Dover DE 199014003 PRODUCtS BY VINWY ODNPAEY SCAIIOVER RD OR 3D .... * 9996 DOT MATRIX PLOTIER C ..S 9996 MODELERS COMBINATION ..... $14995 AERODRAW RD 96 5A13 SRI3YEIAINKABKOFWIUI8DA3IT NEW CDROM & TIFF FORMATS PAUL MATT COLLECTION $9996 COMING B S HIRSCH COLLECTION RD DOS V6 LNPUT INC DESIGNCAD $ 17500 ..$ 17500 DESIGNCAD 3D DOS V4 000 DESIGNCAD EXPERT .. $69700 MODELCAD DOS VS SCANPRO .4248OO VINYLCAD 00 FRODUCII BY C & 3 NICRODYBERUS WINGDESIGNER PRO ......... $11996 DESIGNCAD 2D DOS V6 COMBO NO 3 GNCAD 2D DOS ye AERODRAW AND SCANOVER FOR ONLY 827495 WINDSOFT 150 ROLL PAPER NO CROSS PERFORATIONS IRFc2EJLAF $i9QWIXE $299 FAST ACCURATE CAD DRAWINGS ARE NO ACCIDENT CALL 1302678--5174 TODAY TO EXPLORE THE FUTURE lYITH BILL FAST CREDIT CARD ORDERS ACCEPTED BY THESE FINE RETAILERS PRICES MAY VARY AND DO NOT INCLUDE SHIPPING AND HANDLING SCALE PLANS AND WEST VALLEY HOBBIES 1 BOB HOLMAN PLANS 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JOHN SULLIVAN FOAM FLOATS 28 32 36 40 48 SUPPLIE5 CUB 114 SCALE LANDING GEAR 2 51ZE5 Sig Balsa USA eto w/Bsngo 1ovro.$1555O o $450 13 Balsa USA Covers $1300 $250 ZENOAH 023 GSS 062 Engines CUSTOMIZED SPEING STARTER PLYWOOD MOUNT MUFFLERS ACCESORIES Brochure SASE hJWENRON PEClALTIE5 2895 Estates Ave 510 7580179Po Box 663 Pinole CA 94564 vIsA/MccKcoDCAAesaddSalesTax SOOe@SOeeggoe@eeoeg BALSA SHEETS 1/16 3 3345 3/32 1 2 4055 1/0 0 2 4359 3/16 5 2 4967 1/4 5 35677 5/14 5 26587 3/4 5 273100 12LL2JAL12 1/16 5 33645 3/32 34454 1/8 5 35574 3/19 36384 1/4 5 37598 5/15 11 303315 3/8 0 393135 1/2 0114160 2ZW222 1/16 5 45876 3/32 0 47295 1/8 5 482139 3/16 0 494126 1/4 3 4115139 5/16 5 4144190 3/8 3 4170235 1/2 5 4235273 AflOITIONAL aizza BALSA STIcKs 6 1su 1/18 5 1/808 1/18 0 1/41014 1/19 0 0/81120 3L2iLIL22A.2A S 1/32 0 3/320911 1/30 8 U.0914 6 3/321/41118 /2 0 3/41004 6 2L2L1122-2* 1/8 0 180910 6 1/8 0 1/31310 1/8 9 3/80019 6 ILLL212222* 3/18 0 3/141019 5 0/18 0 3/81731 3L11LILZ2221 4 0 1/8~ 1/4 1/2 34 1/8 0 3/800 45 1L4124232 lLli53L112232 1/8 0 3/82914 1/801/41149 3/8 0 3/084585 2LL222222 1/2 8 1/43855 1/2 0 3/30868 1L2.S222125 32kLiIO1222 3/4 9 3/475045 CUSTOM CUTTING 600060gg SeeSgOeg 0O500 110 Model Aviation o* arent very practical Carrier competition Grumman Guardian Fairey Barracuda just under 300 square inches 44-inch span extremes aspect ratio among acceptable candidate prototypes Others go maximum little 440 square inches Vought OS2U Kingfisher prefer 350 375 square inches wing area because believe produces best low speed sacrificing high-speed performance MO-i 44-inch span about 375 square inches has successfulbut other prototypes will fit criterion What necessary aspect ratio 55 lower Aspect ratio measure skinny wing Its definition wingspan divided wings average chord Because defining average chord some wings complex others accepted formula wingspan squared divided wing area table prototype aircraft accompanies column includes aspect ratio data comparison other factor acceptable low-speed performance aircraft control model cant reliably held stall low-speed scores will suffer measure control effectiveness purposewith apologies aerodynamics instructors tail volume ratio larger tail volume ratio produces effective pitch control tolerant changes balance point other words models larger tail volume ratios retain acceptable flight characteristics over broader range balance points smallest acceptable tail volume ratio about 35 few propeller-driven prototypes lower tail volume ratios Only jet-powered aircraft tend have smaller ratios key acceptable handling qualities lies avoiding prototypes have both small tail volume ratios long noses propellers mounted well forward balance point likely require ballast tail likely have fuel variable weight farther forward causing 0 S S 0 0 S 0 S 0 S 0 Continued page 114 visaBJrn/c ELECTRONICS PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Linsurpeased WorkmanshJn 8 Performance trformance System TOP PERFORMANCE K&B ENGINES AirplaneMarine KSB FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B K&B SUPER POXY RESIN tSR K&B SUPER POXY PRIMER ounce annv PaiNT Ridgedale Drive Ogden Utah 84403 Tel 801 476-1177 New Combat pilots lifeblood hobby-sport Without new pilots would die out quickly southern California fortunate have new crop pilots cutting teeth 80 mph Combat prior getting Fast Combat Some have already graduated Nelsonpowered equipment will force reckoned not-too-distant future John Keneally Stan Sweat Brian Coquette Frank Simms pictured months column None guys has national reputation what keeps us going have selling some excess equipment rookie locals can put good use Frank Simms has made pit boxes Combat use some beautiful glow plug caddies both Nelson standard glow plugs avy Carrier/Perry Continued paqe 110 greater variation balance during flight destabilizing effects propeller stronger harder counteract unacceptable Carrier competition Some aircraft listed table illustrate relationship Cabs Aloise s Profile Carrier record holder has low tail volume ratio very short nose scale MO-i also low end tail volume its nose also relatively short Grumman Guardian has long nose tail volume ratio 60 overcomes deficiency quite well Adding wing flaps model adds additional nose-down pitching moment during low-speed flight additional moment requires larger tail volume ratio compensate HIGH QUALITY FLAGPOLE INSTALLATION KiTa 3 Kit Styles Available FI e ional Telescoping Hardware Kits starting @ 8995 FAll Airs inoisde nylen osrdno US Flag DISCOUNT PRICES ON FLAGS Infotine 317-788-8095Order line 800-522-FLAG ALLIED FLAG DISPLAY CO 6BB9 Shelby St Indianapolis IN 46227 FOUR 1994 SCALE CATALOGS SPPS l6oSuperscale Consbuciton Hans$500 SPPS 120000 Dmmntentation Photos 3W$500 ASP MoctAiaItCorstiudon Hans$500 ASP SraJeAjraat Drawings 3Vs$500 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 1002 Pc Wing Plans $4000 pp LOCKHEED VEGA Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VtstyvlCPHONE/FAX 910 292-5239 114 Model Aviation OLDER WE HA VEOVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 WANTED Ignition Model Engines 1930s 1950s Elf Baby Cyclone Brown Jr Ohisson Etc -ALSOModel Race Cars & Boats Any Parts Spark Plugs Etc Woody Bartelt 1301 W Lafayette Sturgis MI 49091 800-982-5464 616-665-9693 Model Airplane Design PerformanceFor Modeler Thin book must model airplane builder flyern ary covers model airplane gn performance modeler mind Topics ar -ranged sequence leads example designs radio con trol model airplanes Early Develepnientn Terminology Aerodynantira Stability Control Performance Design $2495 shipping handing Toll Free Orders MC VISA & AMEX 1-800-364-BOOK Check MO Challenge Engineering Inc PO Box 67 New Baden TX 77870 TX S5identn add tax-- US cerreecy enty FAITANII RUBBER l/4~ /16 lie THICK 1 lb box $1 6 UPS delivered US 10 lb box $11800 UPs delivered Made USA. CA res add 8% sales tax KSB fuel timers $13 DT $19w Silly putty timers $5 Front ends winders stooges Books Czech P30 props Slick Lube CROCKETT hooks plus kinds super accessories huge bunch great FF kits Send $1 FAI Model Supply 1994 catalog P 0 Box 3957 Torrance CA 90510 Phone 310-830-8939 RC Flight Training Beginner advanced tailored individual long-time modeler full size airplane flight insfruc tor will make progress fun easy during week stay beautiful far western North Carolina Write call information BC Fight Training 7043894968 formula computing tail volume ratio Vt shown beginning column wing tail areas equation self-explanatory trick include wing tail area inside fuselage Simply extend leading trailing edges centerline fuselage ignoring small changes outline occur near fuselage such wing fairings landing gear fairings tail moment arm distance between quarter-chord points wing MAC tail MAC quarter chord point point lies 25% distance leading edge trailing edge MAC Mean Aerodynamic Chord MAC theoretical wing chord represents characteristics entire wing other wing chords combined Ill discuss exact methods computing MAC next column Approximate methods finding MAC non-tapered wing MAC simply wing chord leading edge trailing edge distance measured parallel direction flight tapered wing MAC divides wing two equal areas inboard average chord chord measured half distance fuselage centerline wingtip tapered wings MAC falls about 43% centerlinetip distance reason wings designed approximate optimum efficiency elliptical wing elliptical wings MAC falls 424% centerline-tip distance next column Ill discuss effects design configuration neutral point give some guidelines balancing Carrier models both high- lowspeed handling qualities #J SOUND MUFFLERS auL PIPESAlloy Steel LightweIght Fits Engines 26 Models 25 58 4-Stroke Helicopter TESTED 88DB AT 3 METERS Cisoence Lee. RCM Engine Clinic MUFFLER THAT THINKS ITS PIPE Don Lowe sident AMA STILL THE MOST EFFECE WE MUFFLER Howaggl Coispin Sound Coonntittee Cati 203 577-t 670 send 75y stamped #10 envelope & $3 credited tel order DAVIS MODEL PRODUCTS Dealer Inquiries InvIted P0 Box 141 Dept M Milrord CT O646OJ east Sa DISCOVER ELECTRIC RTP FLYING Catalog including Ballards imports $1 Learn fly planes private geld SKONK WORKS Five 6 day course $350 Open year round 1890 Forestdale AveSend SASE complete info Southwest RC Beavercreek OH 45432Flying 2818 Carolina NE Albuquerque NM 513 429-241187110505-832-6394 el WI$Ie e u — Premium Grade 3/4 oz 38W 10 yrd mm $250 yd Lower Prices 30 yds & up Weights Available Z Other TinLins W 17 Andrews Drive ville AL 36322 205598-2287400-1000 CST PERFORMANCE PLUS FUEL 5%NITRO650 15%KLOTZ/2%CASTOR 10% 750 ANTI POAMERS 15 r It850ANTt WEAR & RUST 25%1695* NITROGEN BLANKET u IN PROCESS 60%o 1950 PERFORMANCE 4-CYCLE 10%NITRO76010%CASTOR/S%SYN 15% 860SAME QUALITY AS 25% 1725FUEL ABOVE cnnnrtrucrv ANDINCACAn flOttSd PATTERN MASTER $35000/$55000 painsed class fimse corered painted wings ssa5 ULTRA LITE RACING WHEELS $1000 ssssohined frees dstrin / ultra list nish dutl sriac used SOFT MOUNTS SM TO XL $895 & UP sold d mounts per pscb/ rubber rated 60 durometer ECONO FUEL PUMP $895 pslyprsplosse baud pump hsgh nisrsprssflfsr eaebotsle sad GAS SMOKE OIL$850 clearfiuidfsr smobe syssems Ins bad odur clean burniac FEATHER LITE micro /Eller $295 slmoss weightl eta miors fitter nsthinc hcbser KitsFtaerls & Accessories Hobby SEND FAX FOR FREE CATALOG DEALFI4S WFLCOME TEL 9098994856 FAX 9098994857 WEST COAST IT YOURSELF Easy use Save Money Save Time As low $1 095 hy FREE FULor wrilF CallSmithy DepI MA Mill l 180034563423023 E 2sd Streot Ask operator MA The Dalles OR 97058 June1994 115 Rubber fe Engine Power Free Flight Display Control Line Electric Power RIC Airplanes Pens valley Hobby Center 837-A W Main St Lansdaie PA 19446 215- 3U4770 R/C Combat Uremlin RUM 12/92 Affordable Custom Cows Modelers Modelers Combos Gremlins Cocos 5t2 Shoes kiss $20 temptasos 00 wood Full kits wood $35 Combat nemalesser shors/foll kit 03021 St57G37 GensIr Lady Spins 3M full wing kits $55 Upgrade glider seas inseomrdiase lrvrl wish nom wine Dodger Larson 25 Qaickro 500 cores -$8 per pair Cussom prr-sbeesod wings available balsa obochi Lotus cot your sent club project Custom core qoastisy discoaosn Ati orders sdd $5 0&H CODs add Sb additional RA Cores tO Sos 063 Soutbbridgo MA OtSSO or/SOS 765-9990 Glider Release Piallorm lets carsy & release glides hack elan existing high wing pewer plane aOached 10$ removed Irow power piece quickly & easily Gileer Release Platform sell-contained lightweight easyto build & lolsottun Plons snclude 2 sheets t0e24 & Complete instruction booklet p50105 Sane check money order lot $1405 plus $1S0 P&l-l 616451 payable Robed Thihodoso PD Son 222 Cheltenhom MD 20623 COMPOS~ES 12360 ass clint rd So SO Randss Cuesmenea 1135 L STOP BENDING YOUR GEAR ADD STRENGTHu KEEP FLEXIBILITY SEND $499 TO enitram Mfg 1129 Montebeilo #49 Gllroy C02 Raise Ii Anis 6101 DC ilectrise Resistance tit Msstss Mosslar Cs-srijsre Hess I Sermos Super Connector Lifetime Guarantee $500 per packet 2 SermOs Super Charging Jack Lifetime Guarantee $550 per packet 3 Sermos Standard Connector $400 per packet 4 Sermos Standard Charging Jack $450 per packet 5 Sermos Standard Arming Switch $400 per packet 6 SermOs Insertion & Extraction Tool $800 per tool Mimiman Order $1500 PLUS $200 tsr Shipping end Handeling Only Certilied Checks Money Orders accepted payment ail orders Distributors Dealers inquiries Invited Pleaoe call 203 322-6254 lot lurther inlormation R/O SNAP CONNECTORS INC Cedar Corners Station lao 16787 Stamford CT 06905
Edition: Model Aviation - 1994/06
Page Numbers: 108, 109, 110, 114, 115
CONTROL LINE NAVY CARRIER CORRECTION February issue incorrectly listed Jim Kirby winner Rookie Year Award 1993 National Championships Navy Carrier Society real Rookie Year Terry Kirby Jims brother Sorry about error Terry Hope see youand brotherin Lubbock next summer Nationals National Aeromodeling Championships Lubbock Texas has publicized extensively Ill repeat location schedule information its relatively central location Lubbock should provide reasonable access large number Carrier modelers expect especially strong showing Dallas-Fort Worth area hope west coast Carrier fliers can attend distance wont discourage northeast should some outstanding competition Art Johnson has volunteered arduous task planning running Carrier events As being written jobs have allocated volunteers still need people willing lend helping hand able assist Carrier events Nationalseven part day contact Art 1818 Oslo Drive Rockford IL 61108 Tel 815 398-3490 addition normal Carrier events will traditional Carrier Awards Banquet annual meeting Navy Carrier Society As usual Navy Carrier Society will present two special awards Rookie Year honors will go contestant entering first Nationals Carrier competition award based performance sportsmanship Eugene Ely Award goes modeler having highest total score three classes Navy Carrier commemorates first man fly land Navy ship used cables sandbags arresting gear Elys openair Curtiss biplane would difficult model too practical competition has done Ted Kraver flew Buckeye Arizona Regionals early 1970s Following regular competition events Navy Carrier Society will sponsor Sportsman Profile Carrier anyone did enter Nationals Carrier events Normal Profile Carrier rules will used Although no firm sponsors time still six months away likely will 15 Carrier event well also possibility Carrier event Sig Skyray 35 model using rules annual Sig contest Details will appear Navy Carrier Society newsletter Sniper 15 Carrier 15 Carrier Aircraft F-4 Phantom II FJ-4 Fury Aloise Profile SBD Dauntless A-7 Corsair II MO-i AM-i Mauler F8F Bearcat OS2U Kingfisher Short Seamew F6F Hellcat F7F Tigercat Sniper 15 A1H Skyraider Boeing XF8B-1 AF-2S Guardian ARVt 287 423 381 445 403 507 481 487 442 518 530 560 473 616 590 677 27 27 35 36 37 38 41 42 45 50 50 52 55 57 58 60 model pictured month designed Bill Bischoff performs very well competition designed performance does represent actual aircraft no scale bonus points offered 15 Carrier capable low-speed times three minutes Its fine handling quality due its short nose relatively large tail volume ratio discussed later also allows model balanced farther aft possible some 15 Ken Smiths Sig Skyray 101st Screaming Eagles contest Whittier Narrows California Naccarato photo Tail Volume Ratio formula diagram Vt St x Sm x MAC Vt volume ratio St area lt moment arm area MAC Mean Aerodynamic Chord win g Carrier models sacrificing highspeed stability Wings made foam using prefabricated Halflite cores intended 1/2A Combat Plans available Bill 108 Model Aviation lip Sweeney Jrs first Carrier Curtiss Seamew Flying Models plans 15 Carrier Naccarato photo Sniper designed Bill Bischoff 15 Carrier competition Plan flying ability details text Jason Hayes original TBF Avenger Profile Carrier OS 35 rudder outboard aileron Naccarato photo SW St MAc MAC Bischoff 3734 Tuesdell Dallas TX 75244 Tel 214 247-5046 model listed reference purposes along fullscale prototype aircraft next section model design Carrier Model Selection years ago devoted column selecting prototype upon base CL Navy Carrier model Since style flying types models have changed considerably modelers learned gain optimum scores under current scoring system Ive received few calls since Nationals Carrier modelers seeking alternatives MO-l calls combined realization original ideas what makes good Carrier model no longer appropriate have prompted update information repeat subject Other relative simplicity MO-i design experience gained modelers using no good reasons selecting prototype over other fact good reason selecting MO-l its fuselage small know statement sounds backwards hear out smaller fuselage offers less drag larger models other factors overshadow drag fuselage drag producers cant avoided engine lines landing gear hook fixed Other hiding inside other parts model isnt anything can about drag produce Fuselage drag small comparison large fuselage conceals engine thus compensates increased fuselage drag reducing engine drag Control systems engine mounts fuel tanks easier fit larger fuselages fuselage large cross section can built lighter small fuselage still retain same strength dont usually build way least its option its fixed width fuselage Profile Carrier model different story smaller fuselage lighter two ways improve scores qr GENERIX P 0 Box 771 East Windsor NJ 08520 Orders 800-645-KITS Information 609-448-1122 Add $5 00 COD Write Free Catalog Custom Kit Cutters Plans Anyone Elses CL Navy Carrier go faster during high speed go slower during low speed no surprises statement Todays models slower flown before scoring change Since engine technology hasnt declined over last 15 20 years line sizes same reason has lie models three major contributors models bigger drag models heavier slower acceleration external lines line guides add drag Unfortunately little can about some factors need larger models overall scoring advantage get improved low-speed performance few prototypes lines can enclosed wing still obtain adequate line sweep reliable low-speed flight Weight can kept near old standards Class II models doing takes little effort As always speed primarily factor power limited contribution design prototype low-speed end equation factors important 20 years ago no longer important ones Lowspeed scores primarily factor wing loading Lighter wing loading produces better low-speed scores Because weights models components fixed way reduce wing loading increase wing area Wing flaps very common older models have lost importance under present method flying full stall Models flaps lighter easier build Since no longer need worry about complex flap configurations some prototypes options Since primary low-speed design consideration size good place start selecting design deciding what wing area use believe good low-speed performance model should have least 300 square inches wing area Few eligible prototypes cannot meet criteria Supermarine 322 few twin-engine patrol aircraft 250 square inches less built 44-inch span Lockheed U-2 yes legal prototype manages 135 square inches except Supermarine 322 designs GATOR $35 & HMIGHTY BATPLANE Span 38 380 sqin 15-$2250 & H Span 24 30 o 3 ch ht 2 3 lbs.$4400 & H Span 32 Kit builds two planesl & easy toeo o & H Span 48 build Easy ,nttradio d Class winner ign ages want tostructions win fly aiild & Fly Gator Notforsale $5 S & H AT RX-7 744 8995ng 32-46 5S&Hh 5-5 pan 48 ch radio d $5 S & H Span 42 15-32 ht 2-35 lass Design Flies like onlbs ormance very stable low & na ages instructions high speeds 3 Take Off llt say Build & Fly imited Knife Edge Rates [tI7RI es famous models big contests past come alive again Dave Thornburgs 300-page history American aeromodeling DO YOU SPEAK MODEL AIRPLANE first twin pusher latest Ugly Stik Dozens illustrations USA reds memories Order copy today Just $1995 postpaidcash check Visa/MO Pony X Press 5 Monticello Dr Albuquerque NM 87123 505 299-8749 Still Available OLD BUZZARDS SOARING BOOK 160 pgs about thermals $1695 pp JR Pal full-spectrum engine fuel treatment specially formulated R/C models Bends electro chemically metal smooth pitted surfaces Reduce friction & heat Improves performanci Reduce engine wear ces repair costs CAN BE USED AS RUN-OFF OIL TO CLEAIt ENGINES SEFORSAFTER AVAILABLE IN RANDY SQUEEZE BOTtlES OZ 5595 $1295 Ask Boca Bearings local hobby shop Call 4071 998-0004 Toll-free USA 800 332-3256 Toll-free Canada 800 553-3256 Faa 0rder 1407998-0119 send $300 catalog Name Aditreas City ________________ State Zip Boca Bearing Dept C Suite 2304 arh Rd Ratun FL 33433 June 1994 109 five minutes can upgraoe stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded supertough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case top * Guaranteed against breakage year * Why pay $3995 $2995 BBC-l Fits FUTABA 528/S 128 538/S 138 S48/S 148 Servos set 4$2595 ~-2As above set I$695 3Fits AIRYRONICS 94102 Servos set 4$2595 4As above set I$695 inw-5 Ball Bearing Only JR 501 507 RCD APOLLO 05 10 FOCUS H5300 H5500 ACE 330 342 342HS TOWER TS-5 Servos set 4$1995 Add $300 Shipping Handling orders 22406714 692-1393 Info Onlycalifornia Realdents Add 775% Satea Tax Yorba LiflaB t800 845-8978 Orders OnlyVISA MASTERCARD Accepted WindS~~Company 1405 Hopkins Ave Dover DE 199014003 PRODUCtS BY VINWY ODNPAEY SCAIIOVER RD OR 3D .... * 9996 DOT MATRIX PLOTIER C ..S 9996 MODELERS COMBINATION ..... $14995 AERODRAW RD 96 5A13 SRI3YEIAINKABKOFWIUI8DA3IT NEW CDROM & TIFF FORMATS PAUL MATT COLLECTION $9996 COMING B S HIRSCH COLLECTION RD DOS V6 LNPUT INC DESIGNCAD $ 17500 ..$ 17500 DESIGNCAD 3D DOS V4 000 DESIGNCAD EXPERT .. $69700 MODELCAD DOS VS SCANPRO .4248OO VINYLCAD 00 FRODUCII BY C & 3 NICRODYBERUS WINGDESIGNER PRO ......... $11996 DESIGNCAD 2D DOS V6 COMBO NO 3 GNCAD 2D DOS ye AERODRAW AND SCANOVER FOR ONLY 827495 WINDSOFT 150 ROLL PAPER NO CROSS PERFORATIONS IRFc2EJLAF $i9QWIXE $299 FAST ACCURATE CAD DRAWINGS ARE NO ACCIDENT CALL 1302678--5174 TODAY TO EXPLORE THE FUTURE lYITH BILL FAST CREDIT CARD ORDERS ACCEPTED BY THESE FINE RETAILERS PRICES MAY VARY AND DO NOT INCLUDE SHIPPING AND HANDLING SCALE PLANS AND WEST VALLEY HOBBIES 1 BOB HOLMAN PLANS PHOTO SERVICEORDEES 1800--353--3901 19098863969 FAX/INPfr 19102925239 FAXANFI 1-6028498422 FAX 19098899307 CZIi] VISA / MC ACCEPTED A / MC ACCEPTED VISA / MC ACCEPTED EAD OUR JAN 92 AUG 92 & FEB 94 RCM PRODUCT REVIEWS RETAILERS JOIN US IN SUPPORT OF COMPUTER IA90T Y @OOeOeeOOOOe@OOgegggOOgggeeOgOOg@Oeg.. JOHN SULLIVAN FOAM FLOATS 28 32 36 40 48 SUPPLIE5 CUB 114 SCALE LANDING GEAR 2 51ZE5 Sig Balsa USA eto w/Bsngo 1ovro.$1555O o $450 13 Balsa USA Covers $1300 $250 ZENOAH 023 GSS 062 Engines CUSTOMIZED SPEING STARTER PLYWOOD MOUNT MUFFLERS ACCESORIES Brochure SASE hJWENRON PEClALTIE5 2895 Estates Ave 510 7580179Po Box 663 Pinole CA 94564 vIsA/MccKcoDCAAesaddSalesTax SOOe@SOeeggoe@eeoeg BALSA SHEETS 1/16 3 3345 3/32 1 2 4055 1/0 0 2 4359 3/16 5 2 4967 1/4 5 35677 5/14 5 26587 3/4 5 273100 12LL2JAL12 1/16 5 33645 3/32 34454 1/8 5 35574 3/19 36384 1/4 5 37598 5/15 11 303315 3/8 0 393135 1/2 0114160 2ZW222 1/16 5 45876 3/32 0 47295 1/8 5 482139 3/16 0 494126 1/4 3 4115139 5/16 5 4144190 3/8 3 4170235 1/2 5 4235273 AflOITIONAL aizza BALSA STIcKs 6 1su 1/18 5 1/808 1/18 0 1/41014 1/19 0 0/81120 3L2iLIL22A.2A S 1/32 0 3/320911 1/30 8 U.0914 6 3/321/41118 /2 0 3/41004 6 2L2L1122-2* 1/8 0 180910 6 1/8 0 1/31310 1/8 9 3/80019 6 ILLL212222* 3/18 0 3/141019 5 0/18 0 3/81731 3L11LILZ2221 4 0 1/8~ 1/4 1/2 34 1/8 0 3/800 45 1L4124232 lLli53L112232 1/8 0 3/82914 1/801/41149 3/8 0 3/084585 2LL222222 1/2 8 1/43855 1/2 0 3/30868 1L2.S222125 32kLiIO1222 3/4 9 3/475045 CUSTOM CUTTING 600060gg SeeSgOeg 0O500 110 Model Aviation o* arent very practical Carrier competition Grumman Guardian Fairey Barracuda just under 300 square inches 44-inch span extremes aspect ratio among acceptable candidate prototypes Others go maximum little 440 square inches Vought OS2U Kingfisher prefer 350 375 square inches wing area because believe produces best low speed sacrificing high-speed performance MO-i 44-inch span about 375 square inches has successfulbut other prototypes will fit criterion What necessary aspect ratio 55 lower Aspect ratio measure skinny wing Its definition wingspan divided wings average chord Because defining average chord some wings complex others accepted formula wingspan squared divided wing area table prototype aircraft accompanies column includes aspect ratio data comparison other factor acceptable low-speed performance aircraft control model cant reliably held stall low-speed scores will suffer measure control effectiveness purposewith apologies aerodynamics instructors tail volume ratio larger tail volume ratio produces effective pitch control tolerant changes balance point other words models larger tail volume ratios retain acceptable flight characteristics over broader range balance points smallest acceptable tail volume ratio about 35 few propeller-driven prototypes lower tail volume ratios Only jet-powered aircraft tend have smaller ratios key acceptable handling qualities lies avoiding prototypes have both small tail volume ratios long noses propellers mounted well forward balance point likely require ballast tail likely have fuel variable weight farther forward causing 0 S S 0 0 S 0 S 0 S 0 Continued page 114 visaBJrn/c ELECTRONICS PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Linsurpeased WorkmanshJn 8 Performance trformance System TOP PERFORMANCE K&B ENGINES AirplaneMarine KSB FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B K&B SUPER POXY RESIN tSR K&B SUPER POXY PRIMER ounce annv PaiNT Ridgedale Drive Ogden Utah 84403 Tel 801 476-1177 New Combat pilots lifeblood hobby-sport Without new pilots would die out quickly southern California fortunate have new crop pilots cutting teeth 80 mph Combat prior getting Fast Combat Some have already graduated Nelsonpowered equipment will force reckoned not-too-distant future John Keneally Stan Sweat Brian Coquette Frank Simms pictured months column None guys has national reputation what keeps us going have selling some excess equipment rookie locals can put good use Frank Simms has made pit boxes Combat use some beautiful glow plug caddies both Nelson standard glow plugs avy Carrier/Perry Continued paqe 110 greater variation balance during flight destabilizing effects propeller stronger harder counteract unacceptable Carrier competition Some aircraft listed table illustrate relationship Cabs Aloise s Profile Carrier record holder has low tail volume ratio very short nose scale MO-i also low end tail volume its nose also relatively short Grumman Guardian has long nose tail volume ratio 60 overcomes deficiency quite well Adding wing flaps model adds additional nose-down pitching moment during low-speed flight additional moment requires larger tail volume ratio compensate HIGH QUALITY FLAGPOLE INSTALLATION KiTa 3 Kit Styles Available FI e ional Telescoping Hardware Kits starting @ 8995 FAll Airs inoisde nylen osrdno US Flag DISCOUNT PRICES ON FLAGS Infotine 317-788-8095Order line 800-522-FLAG ALLIED FLAG DISPLAY CO 6BB9 Shelby St Indianapolis IN 46227 FOUR 1994 SCALE CATALOGS SPPS l6oSuperscale Consbuciton Hans$500 SPPS 120000 Dmmntentation Photos 3W$500 ASP MoctAiaItCorstiudon Hans$500 ASP SraJeAjraat Drawings 3Vs$500 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 1002 Pc Wing Plans $4000 pp LOCKHEED VEGA Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VtstyvlCPHONE/FAX 910 292-5239 114 Model Aviation OLDER WE HA VEOVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 WANTED Ignition Model Engines 1930s 1950s Elf Baby Cyclone Brown Jr Ohisson Etc -ALSOModel Race Cars & Boats Any Parts Spark Plugs Etc Woody Bartelt 1301 W Lafayette Sturgis MI 49091 800-982-5464 616-665-9693 Model Airplane Design PerformanceFor Modeler Thin book must model airplane builder flyern ary covers model airplane gn performance modeler mind Topics ar -ranged sequence leads example designs radio con trol model airplanes Early Develepnientn Terminology Aerodynantira Stability Control Performance Design $2495 shipping handing Toll Free Orders MC VISA & AMEX 1-800-364-BOOK Check MO Challenge Engineering Inc PO Box 67 New Baden TX 77870 TX S5identn add tax-- US cerreecy enty FAITANII RUBBER l/4~ /16 lie THICK 1 lb box $1 6 UPS delivered US 10 lb box $11800 UPs delivered Made USA. CA res add 8% sales tax KSB fuel timers $13 DT $19w Silly putty timers $5 Front ends winders stooges Books Czech P30 props Slick Lube CROCKETT hooks plus kinds super accessories huge bunch great FF kits Send $1 FAI Model Supply 1994 catalog P 0 Box 3957 Torrance CA 90510 Phone 310-830-8939 RC Flight Training Beginner advanced tailored individual long-time modeler full size airplane flight insfruc tor will make progress fun easy during week stay beautiful far western North Carolina Write call information BC Fight Training 7043894968 formula computing tail volume ratio Vt shown beginning column wing tail areas equation self-explanatory trick include wing tail area inside fuselage Simply extend leading trailing edges centerline fuselage ignoring small changes outline occur near fuselage such wing fairings landing gear fairings tail moment arm distance between quarter-chord points wing MAC tail MAC quarter chord point point lies 25% distance leading edge trailing edge MAC Mean Aerodynamic Chord MAC theoretical wing chord represents characteristics entire wing other wing chords combined Ill discuss exact methods computing MAC next column Approximate methods finding MAC non-tapered wing MAC simply wing chord leading edge trailing edge distance measured parallel direction flight tapered wing MAC divides wing two equal areas inboard average chord chord measured half distance fuselage centerline wingtip tapered wings MAC falls about 43% centerlinetip distance reason wings designed approximate optimum efficiency elliptical wing elliptical wings MAC falls 424% centerline-tip distance next column Ill discuss effects design configuration neutral point give some guidelines balancing Carrier models both high- lowspeed handling qualities #J SOUND MUFFLERS auL PIPESAlloy Steel LightweIght Fits Engines 26 Models 25 58 4-Stroke Helicopter TESTED 88DB AT 3 METERS Cisoence Lee. RCM Engine Clinic MUFFLER THAT THINKS ITS PIPE Don Lowe sident AMA STILL THE MOST EFFECE WE MUFFLER Howaggl Coispin Sound Coonntittee Cati 203 577-t 670 send 75y stamped #10 envelope & $3 credited tel order DAVIS MODEL PRODUCTS Dealer Inquiries InvIted P0 Box 141 Dept M Milrord CT O646OJ east Sa DISCOVER ELECTRIC RTP FLYING Catalog including Ballards imports $1 Learn fly planes private geld SKONK WORKS Five 6 day course $350 Open year round 1890 Forestdale AveSend SASE complete info Southwest RC Beavercreek OH 45432Flying 2818 Carolina NE Albuquerque NM 513 429-241187110505-832-6394 el WI$Ie e u — Premium Grade 3/4 oz 38W 10 yrd mm $250 yd Lower Prices 30 yds & up Weights Available Z Other TinLins W 17 Andrews Drive ville AL 36322 205598-2287400-1000 CST PERFORMANCE PLUS FUEL 5%NITRO650 15%KLOTZ/2%CASTOR 10% 750 ANTI POAMERS 15 r It850ANTt WEAR & RUST 25%1695* NITROGEN BLANKET u IN PROCESS 60%o 1950 PERFORMANCE 4-CYCLE 10%NITRO76010%CASTOR/S%SYN 15% 860SAME QUALITY AS 25% 1725FUEL ABOVE cnnnrtrucrv ANDINCACAn flOttSd PATTERN MASTER $35000/$55000 painsed class fimse corered painted wings ssa5 ULTRA LITE RACING WHEELS $1000 ssssohined frees dstrin / ultra list nish dutl sriac used SOFT MOUNTS SM TO XL $895 & UP sold d mounts per pscb/ rubber rated 60 durometer ECONO FUEL PUMP $895 pslyprsplosse baud pump hsgh nisrsprssflfsr eaebotsle sad GAS SMOKE OIL$850 clearfiuidfsr smobe syssems Ins bad odur clean burniac FEATHER LITE micro /Eller $295 slmoss weightl eta miors fitter nsthinc hcbser KitsFtaerls & Accessories Hobby SEND FAX FOR FREE CATALOG DEALFI4S WFLCOME TEL 9098994856 FAX 9098994857 WEST COAST IT YOURSELF Easy use Save Money Save Time As low $1 095 hy FREE FULor wrilF CallSmithy DepI MA Mill l 180034563423023 E 2sd Streot Ask operator MA The Dalles OR 97058 June1994 115 Rubber fe Engine Power Free Flight Display Control Line Electric Power RIC Airplanes Pens valley Hobby Center 837-A W Main St Lansdaie PA 19446 215- 3U4770 R/C Combat Uremlin RUM 12/92 Affordable Custom Cows Modelers Modelers Combos Gremlins Cocos 5t2 Shoes kiss $20 temptasos 00 wood Full kits wood $35 Combat nemalesser shors/foll kit 03021 St57G37 GensIr Lady Spins 3M full wing kits $55 Upgrade glider seas inseomrdiase lrvrl wish nom wine Dodger Larson 25 Qaickro 500 cores -$8 per pair Cussom prr-sbeesod wings available balsa obochi Lotus cot your sent club project Custom core qoastisy discoaosn Ati orders sdd $5 0&H CODs add Sb additional RA Cores tO Sos 063 Soutbbridgo MA OtSSO or/SOS 765-9990 Glider Release Piallorm lets carsy & release glides hack elan existing high wing pewer plane aOached 10$ removed Irow power piece quickly & easily Gileer Release Platform sell-contained lightweight easyto build & lolsottun Plons snclude 2 sheets t0e24 & Complete instruction booklet p50105 Sane check money order lot $1405 plus $1S0 P&l-l 616451 payable Robed Thihodoso PD Son 222 Cheltenhom MD 20623 COMPOS~ES 12360 ass clint rd So SO Randss Cuesmenea 1135 L STOP BENDING YOUR GEAR ADD STRENGTHu KEEP FLEXIBILITY SEND $499 TO enitram Mfg 1129 Montebeilo #49 Gllroy C02 Raise Ii Anis 6101 DC ilectrise Resistance tit Msstss Mosslar Cs-srijsre Hess I Sermos Super Connector Lifetime Guarantee $500 per packet 2 SermOs Super Charging Jack Lifetime Guarantee $550 per packet 3 Sermos Standard Connector $400 per packet 4 Sermos Standard Charging Jack $450 per packet 5 Sermos Standard Arming Switch $400 per packet 6 SermOs Insertion & Extraction Tool $800 per tool Mimiman Order $1500 PLUS $200 tsr Shipping end Handeling Only Certilied Checks Money Orders accepted payment ail orders Distributors Dealers inquiries Invited Pleaoe call 203 322-6254 lot lurther inlormation R/O SNAP CONNECTORS INC Cedar Corners Station lao 16787 Stamford CT 06905
Edition: Model Aviation - 1994/06
Page Numbers: 108, 109, 110, 114, 115
CONTROL LINE NAVY CARRIER CORRECTION February issue incorrectly listed Jim Kirby winner Rookie Year Award 1993 National Championships Navy Carrier Society real Rookie Year Terry Kirby Jims brother Sorry about error Terry Hope see youand brotherin Lubbock next summer Nationals National Aeromodeling Championships Lubbock Texas has publicized extensively Ill repeat location schedule information its relatively central location Lubbock should provide reasonable access large number Carrier modelers expect especially strong showing Dallas-Fort Worth area hope west coast Carrier fliers can attend distance wont discourage northeast should some outstanding competition Art Johnson has volunteered arduous task planning running Carrier events As being written jobs have allocated volunteers still need people willing lend helping hand able assist Carrier events Nationalseven part day contact Art 1818 Oslo Drive Rockford IL 61108 Tel 815 398-3490 addition normal Carrier events will traditional Carrier Awards Banquet annual meeting Navy Carrier Society As usual Navy Carrier Society will present two special awards Rookie Year honors will go contestant entering first Nationals Carrier competition award based performance sportsmanship Eugene Ely Award goes modeler having highest total score three classes Navy Carrier commemorates first man fly land Navy ship used cables sandbags arresting gear Elys openair Curtiss biplane would difficult model too practical competition has done Ted Kraver flew Buckeye Arizona Regionals early 1970s Following regular competition events Navy Carrier Society will sponsor Sportsman Profile Carrier anyone did enter Nationals Carrier events Normal Profile Carrier rules will used Although no firm sponsors time still six months away likely will 15 Carrier event well also possibility Carrier event Sig Skyray 35 model using rules annual Sig contest Details will appear Navy Carrier Society newsletter Sniper 15 Carrier 15 Carrier Aircraft F-4 Phantom II FJ-4 Fury Aloise Profile SBD Dauntless A-7 Corsair II MO-i AM-i Mauler F8F Bearcat OS2U Kingfisher Short Seamew F6F Hellcat F7F Tigercat Sniper 15 A1H Skyraider Boeing XF8B-1 AF-2S Guardian ARVt 287 423 381 445 403 507 481 487 442 518 530 560 473 616 590 677 27 27 35 36 37 38 41 42 45 50 50 52 55 57 58 60 model pictured month designed Bill Bischoff performs very well competition designed performance does represent actual aircraft no scale bonus points offered 15 Carrier capable low-speed times three minutes Its fine handling quality due its short nose relatively large tail volume ratio discussed later also allows model balanced farther aft possible some 15 Ken Smiths Sig Skyray 101st Screaming Eagles contest Whittier Narrows California Naccarato photo Tail Volume Ratio formula diagram Vt St x Sm x MAC Vt volume ratio St area lt moment arm area MAC Mean Aerodynamic Chord win g Carrier models sacrificing highspeed stability Wings made foam using prefabricated Halflite cores intended 1/2A Combat Plans available Bill 108 Model Aviation lip Sweeney Jrs first Carrier Curtiss Seamew Flying Models plans 15 Carrier Naccarato photo Sniper designed Bill Bischoff 15 Carrier competition Plan flying ability details text Jason Hayes original TBF Avenger Profile Carrier OS 35 rudder outboard aileron Naccarato photo SW St MAc MAC Bischoff 3734 Tuesdell Dallas TX 75244 Tel 214 247-5046 model listed reference purposes along fullscale prototype aircraft next section model design Carrier Model Selection years ago devoted column selecting prototype upon base CL Navy Carrier model Since style flying types models have changed considerably modelers learned gain optimum scores under current scoring system Ive received few calls since Nationals Carrier modelers seeking alternatives MO-l calls combined realization original ideas what makes good Carrier model no longer appropriate have prompted update information repeat subject Other relative simplicity MO-i design experience gained modelers using no good reasons selecting prototype over other fact good reason selecting MO-l its fuselage small know statement sounds backwards hear out smaller fuselage offers less drag larger models other factors overshadow drag fuselage drag producers cant avoided engine lines landing gear hook fixed Other hiding inside other parts model isnt anything can about drag produce Fuselage drag small comparison large fuselage conceals engine thus compensates increased fuselage drag reducing engine drag Control systems engine mounts fuel tanks easier fit larger fuselages fuselage large cross section can built lighter small fuselage still retain same strength dont usually build way least its option its fixed width fuselage Profile Carrier model different story smaller fuselage lighter two ways improve scores qr GENERIX P 0 Box 771 East Windsor NJ 08520 Orders 800-645-KITS Information 609-448-1122 Add $5 00 COD Write Free Catalog Custom Kit Cutters Plans Anyone Elses CL Navy Carrier go faster during high speed go slower during low speed no surprises statement Todays models slower flown before scoring change Since engine technology hasnt declined over last 15 20 years line sizes same reason has lie models three major contributors models bigger drag models heavier slower acceleration external lines line guides add drag Unfortunately little can about some factors need larger models overall scoring advantage get improved low-speed performance few prototypes lines can enclosed wing still obtain adequate line sweep reliable low-speed flight Weight can kept near old standards Class II models doing takes little effort As always speed primarily factor power limited contribution design prototype low-speed end equation factors important 20 years ago no longer important ones Lowspeed scores primarily factor wing loading Lighter wing loading produces better low-speed scores Because weights models components fixed way reduce wing loading increase wing area Wing flaps very common older models have lost importance under present method flying full stall Models flaps lighter easier build Since no longer need worry about complex flap configurations some prototypes options Since primary low-speed design consideration size good place start selecting design deciding what wing area use believe good low-speed performance model should have least 300 square inches wing area Few eligible prototypes cannot meet criteria Supermarine 322 few twin-engine patrol aircraft 250 square inches less built 44-inch span Lockheed U-2 yes legal prototype manages 135 square inches except Supermarine 322 designs GATOR $35 & HMIGHTY BATPLANE Span 38 380 sqin 15-$2250 & H Span 24 30 o 3 ch ht 2 3 lbs.$4400 & H Span 32 Kit builds two planesl & easy toeo o & H Span 48 build Easy ,nttradio d Class winner ign ages want tostructions win fly aiild & Fly Gator Notforsale $5 S & H AT RX-7 744 8995ng 32-46 5S&Hh 5-5 pan 48 ch radio d $5 S & H Span 42 15-32 ht 2-35 lass Design Flies like onlbs ormance very stable low & na ages instructions high speeds 3 Take Off llt say Build & Fly imited Knife Edge Rates [tI7RI es famous models big contests past come alive again Dave Thornburgs 300-page history American aeromodeling DO YOU SPEAK MODEL AIRPLANE first twin pusher latest Ugly Stik Dozens illustrations USA reds memories Order copy today Just $1995 postpaidcash check Visa/MO Pony X Press 5 Monticello Dr Albuquerque NM 87123 505 299-8749 Still Available OLD BUZZARDS SOARING BOOK 160 pgs about thermals $1695 pp JR Pal full-spectrum engine fuel treatment specially formulated R/C models Bends electro chemically metal smooth pitted surfaces Reduce friction & heat Improves performanci Reduce engine wear ces repair costs CAN BE USED AS RUN-OFF OIL TO CLEAIt ENGINES SEFORSAFTER AVAILABLE IN RANDY SQUEEZE BOTtlES OZ 5595 $1295 Ask Boca Bearings local hobby shop Call 4071 998-0004 Toll-free USA 800 332-3256 Toll-free Canada 800 553-3256 Faa 0rder 1407998-0119 send $300 catalog Name Aditreas City ________________ State Zip Boca Bearing Dept C Suite 2304 arh Rd Ratun FL 33433 June 1994 109 five minutes can upgraoe stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded supertough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case top * Guaranteed against breakage year * Why pay $3995 $2995 BBC-l Fits FUTABA 528/S 128 538/S 138 S48/S 148 Servos set 4$2595 ~-2As above set I$695 3Fits AIRYRONICS 94102 Servos set 4$2595 4As above set I$695 inw-5 Ball Bearing Only JR 501 507 RCD APOLLO 05 10 FOCUS H5300 H5500 ACE 330 342 342HS TOWER TS-5 Servos set 4$1995 Add $300 Shipping Handling orders 22406714 692-1393 Info Onlycalifornia Realdents Add 775% Satea Tax Yorba LiflaB t800 845-8978 Orders OnlyVISA MASTERCARD Accepted WindS~~Company 1405 Hopkins Ave Dover DE 199014003 PRODUCtS BY VINWY ODNPAEY SCAIIOVER RD OR 3D .... * 9996 DOT MATRIX PLOTIER C ..S 9996 MODELERS COMBINATION ..... $14995 AERODRAW RD 96 5A13 SRI3YEIAINKABKOFWIUI8DA3IT NEW CDROM & TIFF FORMATS PAUL MATT COLLECTION $9996 COMING B S HIRSCH COLLECTION RD DOS V6 LNPUT INC DESIGNCAD $ 17500 ..$ 17500 DESIGNCAD 3D DOS V4 000 DESIGNCAD EXPERT .. $69700 MODELCAD DOS VS SCANPRO .4248OO VINYLCAD 00 FRODUCII BY C & 3 NICRODYBERUS WINGDESIGNER PRO ......... $11996 DESIGNCAD 2D DOS V6 COMBO NO 3 GNCAD 2D DOS ye AERODRAW AND SCANOVER FOR ONLY 827495 WINDSOFT 150 ROLL PAPER NO CROSS PERFORATIONS IRFc2EJLAF $i9QWIXE $299 FAST ACCURATE CAD DRAWINGS ARE NO ACCIDENT CALL 1302678--5174 TODAY TO EXPLORE THE FUTURE lYITH BILL FAST CREDIT CARD ORDERS ACCEPTED BY THESE FINE RETAILERS PRICES MAY VARY AND DO NOT INCLUDE SHIPPING AND HANDLING SCALE PLANS AND WEST VALLEY HOBBIES 1 BOB HOLMAN PLANS PHOTO SERVICEORDEES 1800--353--3901 19098863969 FAX/INPfr 19102925239 FAXANFI 1-6028498422 FAX 19098899307 CZIi] VISA / MC ACCEPTED A / MC ACCEPTED VISA / MC ACCEPTED EAD OUR JAN 92 AUG 92 & FEB 94 RCM PRODUCT REVIEWS RETAILERS JOIN US IN SUPPORT OF COMPUTER IA90T Y @OOeOeeOOOOe@OOgegggOOgggeeOgOOg@Oeg.. JOHN SULLIVAN FOAM FLOATS 28 32 36 40 48 SUPPLIE5 CUB 114 SCALE LANDING GEAR 2 51ZE5 Sig Balsa USA eto w/Bsngo 1ovro.$1555O o $450 13 Balsa USA Covers $1300 $250 ZENOAH 023 GSS 062 Engines CUSTOMIZED SPEING STARTER PLYWOOD MOUNT MUFFLERS ACCESORIES Brochure SASE hJWENRON PEClALTIE5 2895 Estates Ave 510 7580179Po Box 663 Pinole CA 94564 vIsA/MccKcoDCAAesaddSalesTax SOOe@SOeeggoe@eeoeg BALSA SHEETS 1/16 3 3345 3/32 1 2 4055 1/0 0 2 4359 3/16 5 2 4967 1/4 5 35677 5/14 5 26587 3/4 5 273100 12LL2JAL12 1/16 5 33645 3/32 34454 1/8 5 35574 3/19 36384 1/4 5 37598 5/15 11 303315 3/8 0 393135 1/2 0114160 2ZW222 1/16 5 45876 3/32 0 47295 1/8 5 482139 3/16 0 494126 1/4 3 4115139 5/16 5 4144190 3/8 3 4170235 1/2 5 4235273 AflOITIONAL aizza BALSA STIcKs 6 1su 1/18 5 1/808 1/18 0 1/41014 1/19 0 0/81120 3L2iLIL22A.2A S 1/32 0 3/320911 1/30 8 U.0914 6 3/321/41118 /2 0 3/41004 6 2L2L1122-2* 1/8 0 180910 6 1/8 0 1/31310 1/8 9 3/80019 6 ILLL212222* 3/18 0 3/141019 5 0/18 0 3/81731 3L11LILZ2221 4 0 1/8~ 1/4 1/2 34 1/8 0 3/800 45 1L4124232 lLli53L112232 1/8 0 3/82914 1/801/41149 3/8 0 3/084585 2LL222222 1/2 8 1/43855 1/2 0 3/30868 1L2.S222125 32kLiIO1222 3/4 9 3/475045 CUSTOM CUTTING 600060gg SeeSgOeg 0O500 110 Model Aviation o* arent very practical Carrier competition Grumman Guardian Fairey Barracuda just under 300 square inches 44-inch span extremes aspect ratio among acceptable candidate prototypes Others go maximum little 440 square inches Vought OS2U Kingfisher prefer 350 375 square inches wing area because believe produces best low speed sacrificing high-speed performance MO-i 44-inch span about 375 square inches has successfulbut other prototypes will fit criterion What necessary aspect ratio 55 lower Aspect ratio measure skinny wing Its definition wingspan divided wings average chord Because defining average chord some wings complex others accepted formula wingspan squared divided wing area table prototype aircraft accompanies column includes aspect ratio data comparison other factor acceptable low-speed performance aircraft control model cant reliably held stall low-speed scores will suffer measure control effectiveness purposewith apologies aerodynamics instructors tail volume ratio larger tail volume ratio produces effective pitch control tolerant changes balance point other words models larger tail volume ratios retain acceptable flight characteristics over broader range balance points smallest acceptable tail volume ratio about 35 few propeller-driven prototypes lower tail volume ratios Only jet-powered aircraft tend have smaller ratios key acceptable handling qualities lies avoiding prototypes have both small tail volume ratios long noses propellers mounted well forward balance point likely require ballast tail likely have fuel variable weight farther forward causing 0 S S 0 0 S 0 S 0 S 0 Continued page 114 visaBJrn/c ELECTRONICS PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Linsurpeased WorkmanshJn 8 Performance trformance System TOP PERFORMANCE K&B ENGINES AirplaneMarine KSB FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B K&B SUPER POXY RESIN tSR K&B SUPER POXY PRIMER ounce annv PaiNT Ridgedale Drive Ogden Utah 84403 Tel 801 476-1177 New Combat pilots lifeblood hobby-sport Without new pilots would die out quickly southern California fortunate have new crop pilots cutting teeth 80 mph Combat prior getting Fast Combat Some have already graduated Nelsonpowered equipment will force reckoned not-too-distant future John Keneally Stan Sweat Brian Coquette Frank Simms pictured months column None guys has national reputation what keeps us going have selling some excess equipment rookie locals can put good use Frank Simms has made pit boxes Combat use some beautiful glow plug caddies both Nelson standard glow plugs avy Carrier/Perry Continued paqe 110 greater variation balance during flight destabilizing effects propeller stronger harder counteract unacceptable Carrier competition Some aircraft listed table illustrate relationship Cabs Aloise s Profile Carrier record holder has low tail volume ratio very short nose scale MO-i also low end tail volume its nose also relatively short Grumman Guardian has long nose tail volume ratio 60 overcomes deficiency quite well Adding wing flaps model adds additional nose-down pitching moment during low-speed flight additional moment requires larger tail volume ratio compensate HIGH QUALITY FLAGPOLE INSTALLATION KiTa 3 Kit Styles Available FI e ional Telescoping Hardware Kits starting @ 8995 FAll Airs inoisde nylen osrdno US Flag DISCOUNT PRICES ON FLAGS Infotine 317-788-8095Order line 800-522-FLAG ALLIED FLAG DISPLAY CO 6BB9 Shelby St Indianapolis IN 46227 FOUR 1994 SCALE CATALOGS SPPS l6oSuperscale Consbuciton Hans$500 SPPS 120000 Dmmntentation Photos 3W$500 ASP MoctAiaItCorstiudon Hans$500 ASP SraJeAjraat Drawings 3Vs$500 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 1002 Pc Wing Plans $4000 pp LOCKHEED VEGA Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VtstyvlCPHONE/FAX 910 292-5239 114 Model Aviation OLDER WE HA VEOVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 WANTED Ignition Model Engines 1930s 1950s Elf Baby Cyclone Brown Jr Ohisson Etc -ALSOModel Race Cars & Boats Any Parts Spark Plugs Etc Woody Bartelt 1301 W Lafayette Sturgis MI 49091 800-982-5464 616-665-9693 Model Airplane Design PerformanceFor Modeler Thin book must model airplane builder flyern ary covers model airplane gn performance modeler mind Topics ar -ranged sequence leads example designs radio con trol model airplanes Early Develepnientn Terminology Aerodynantira Stability Control Performance Design $2495 shipping handing Toll Free Orders MC VISA & AMEX 1-800-364-BOOK Check MO Challenge Engineering Inc PO Box 67 New Baden TX 77870 TX S5identn add tax-- US cerreecy enty FAITANII RUBBER l/4~ /16 lie THICK 1 lb box $1 6 UPS delivered US 10 lb box $11800 UPs delivered Made USA. CA res add 8% sales tax KSB fuel timers $13 DT $19w Silly putty timers $5 Front ends winders stooges Books Czech P30 props Slick Lube CROCKETT hooks plus kinds super accessories huge bunch great FF kits Send $1 FAI Model Supply 1994 catalog P 0 Box 3957 Torrance CA 90510 Phone 310-830-8939 RC Flight Training Beginner advanced tailored individual long-time modeler full size airplane flight insfruc tor will make progress fun easy during week stay beautiful far western North Carolina Write call information BC Fight Training 7043894968 formula computing tail volume ratio Vt shown beginning column wing tail areas equation self-explanatory trick include wing tail area inside fuselage Simply extend leading trailing edges centerline fuselage ignoring small changes outline occur near fuselage such wing fairings landing gear fairings tail moment arm distance between quarter-chord points wing MAC tail MAC quarter chord point point lies 25% distance leading edge trailing edge MAC Mean Aerodynamic Chord MAC theoretical wing chord represents characteristics entire wing other wing chords combined Ill discuss exact methods computing MAC next column Approximate methods finding MAC non-tapered wing MAC simply wing chord leading edge trailing edge distance measured parallel direction flight tapered wing MAC divides wing two equal areas inboard average chord chord measured half distance fuselage centerline wingtip tapered wings MAC falls about 43% centerlinetip distance reason wings designed approximate optimum efficiency elliptical wing elliptical wings MAC falls 424% centerline-tip distance next column Ill discuss effects design configuration neutral point give some guidelines balancing Carrier models both high- lowspeed handling qualities #J SOUND MUFFLERS auL PIPESAlloy Steel LightweIght Fits Engines 26 Models 25 58 4-Stroke Helicopter TESTED 88DB AT 3 METERS Cisoence Lee. RCM Engine Clinic MUFFLER THAT THINKS ITS PIPE Don Lowe sident AMA STILL THE MOST EFFECE WE MUFFLER Howaggl Coispin Sound Coonntittee Cati 203 577-t 670 send 75y stamped #10 envelope & $3 credited tel order DAVIS MODEL PRODUCTS Dealer Inquiries InvIted P0 Box 141 Dept M Milrord CT O646OJ east Sa DISCOVER ELECTRIC RTP FLYING Catalog including Ballards imports $1 Learn fly planes private geld SKONK WORKS Five 6 day course $350 Open year round 1890 Forestdale AveSend SASE complete info Southwest RC Beavercreek OH 45432Flying 2818 Carolina NE Albuquerque NM 513 429-241187110505-832-6394 el WI$Ie e u — Premium Grade 3/4 oz 38W 10 yrd mm $250 yd Lower Prices 30 yds & up Weights Available Z Other TinLins W 17 Andrews Drive ville AL 36322 205598-2287400-1000 CST PERFORMANCE PLUS FUEL 5%NITRO650 15%KLOTZ/2%CASTOR 10% 750 ANTI POAMERS 15 r It850ANTt WEAR & RUST 25%1695* NITROGEN BLANKET u IN PROCESS 60%o 1950 PERFORMANCE 4-CYCLE 10%NITRO76010%CASTOR/S%SYN 15% 860SAME QUALITY AS 25% 1725FUEL ABOVE cnnnrtrucrv ANDINCACAn flOttSd PATTERN MASTER $35000/$55000 painsed class fimse corered painted wings ssa5 ULTRA LITE RACING WHEELS $1000 ssssohined frees dstrin / ultra list nish dutl sriac used SOFT MOUNTS SM TO XL $895 & UP sold d mounts per pscb/ rubber rated 60 durometer ECONO FUEL PUMP $895 pslyprsplosse baud pump hsgh nisrsprssflfsr eaebotsle sad GAS SMOKE OIL$850 clearfiuidfsr smobe syssems Ins bad odur clean burniac FEATHER LITE micro /Eller $295 slmoss weightl eta miors fitter nsthinc hcbser KitsFtaerls & Accessories Hobby SEND FAX FOR FREE CATALOG DEALFI4S WFLCOME TEL 9098994856 FAX 9098994857 WEST COAST IT YOURSELF Easy use Save Money Save Time As low $1 095 hy FREE FULor wrilF CallSmithy DepI MA Mill l 180034563423023 E 2sd Streot Ask operator MA The Dalles OR 97058 June1994 115 Rubber fe Engine Power Free Flight Display Control Line Electric Power RIC Airplanes Pens valley Hobby Center 837-A W Main St Lansdaie PA 19446 215- 3U4770 R/C Combat Uremlin RUM 12/92 Affordable Custom Cows Modelers Modelers Combos Gremlins Cocos 5t2 Shoes kiss $20 temptasos 00 wood Full kits wood $35 Combat nemalesser shors/foll kit 03021 St57G37 GensIr Lady Spins 3M full wing kits $55 Upgrade glider seas inseomrdiase lrvrl wish nom wine Dodger Larson 25 Qaickro 500 cores -$8 per pair Cussom prr-sbeesod wings available balsa obochi Lotus cot your sent club project Custom core qoastisy discoaosn Ati orders sdd $5 0&H CODs add Sb additional RA Cores tO Sos 063 Soutbbridgo MA OtSSO or/SOS 765-9990 Glider Release Piallorm lets carsy & release glides hack elan existing high wing pewer plane aOached 10$ removed Irow power piece quickly & easily Gileer Release Platform sell-contained lightweight easyto build & lolsottun Plons snclude 2 sheets t0e24 & Complete instruction booklet p50105 Sane check money order lot $1405 plus $1S0 P&l-l 616451 payable Robed Thihodoso PD Son 222 Cheltenhom MD 20623 COMPOS~ES 12360 ass clint rd So SO Randss Cuesmenea 1135 L STOP BENDING YOUR GEAR ADD STRENGTHu KEEP FLEXIBILITY SEND $499 TO enitram Mfg 1129 Montebeilo #49 Gllroy C02 Raise Ii Anis 6101 DC ilectrise Resistance tit Msstss Mosslar Cs-srijsre Hess I Sermos Super Connector Lifetime Guarantee $500 per packet 2 SermOs Super Charging Jack Lifetime Guarantee $550 per packet 3 Sermos Standard Connector $400 per packet 4 Sermos Standard Charging Jack $450 per packet 5 Sermos Standard Arming Switch $400 per packet 6 SermOs Insertion & Extraction Tool $800 per tool Mimiman Order $1500 PLUS $200 tsr Shipping end Handeling Only Certilied Checks Money Orders accepted payment ail orders Distributors Dealers inquiries Invited Pleaoe call 203 322-6254 lot lurther inlormation R/O SNAP CONNECTORS INC Cedar Corners Station lao 16787 Stamford CT 06905
Edition: Model Aviation - 1994/06
Page Numbers: 108, 109, 110, 114, 115
CONTROL LINE NAVY CARRIER CORRECTION February issue incorrectly listed Jim Kirby winner Rookie Year Award 1993 National Championships Navy Carrier Society real Rookie Year Terry Kirby Jims brother Sorry about error Terry Hope see youand brotherin Lubbock next summer Nationals National Aeromodeling Championships Lubbock Texas has publicized extensively Ill repeat location schedule information its relatively central location Lubbock should provide reasonable access large number Carrier modelers expect especially strong showing Dallas-Fort Worth area hope west coast Carrier fliers can attend distance wont discourage northeast should some outstanding competition Art Johnson has volunteered arduous task planning running Carrier events As being written jobs have allocated volunteers still need people willing lend helping hand able assist Carrier events Nationalseven part day contact Art 1818 Oslo Drive Rockford IL 61108 Tel 815 398-3490 addition normal Carrier events will traditional Carrier Awards Banquet annual meeting Navy Carrier Society As usual Navy Carrier Society will present two special awards Rookie Year honors will go contestant entering first Nationals Carrier competition award based performance sportsmanship Eugene Ely Award goes modeler having highest total score three classes Navy Carrier commemorates first man fly land Navy ship used cables sandbags arresting gear Elys openair Curtiss biplane would difficult model too practical competition has done Ted Kraver flew Buckeye Arizona Regionals early 1970s Following regular competition events Navy Carrier Society will sponsor Sportsman Profile Carrier anyone did enter Nationals Carrier events Normal Profile Carrier rules will used Although no firm sponsors time still six months away likely will 15 Carrier event well also possibility Carrier event Sig Skyray 35 model using rules annual Sig contest Details will appear Navy Carrier Society newsletter Sniper 15 Carrier 15 Carrier Aircraft F-4 Phantom II FJ-4 Fury Aloise Profile SBD Dauntless A-7 Corsair II MO-i AM-i Mauler F8F Bearcat OS2U Kingfisher Short Seamew F6F Hellcat F7F Tigercat Sniper 15 A1H Skyraider Boeing XF8B-1 AF-2S Guardian ARVt 287 423 381 445 403 507 481 487 442 518 530 560 473 616 590 677 27 27 35 36 37 38 41 42 45 50 50 52 55 57 58 60 model pictured month designed Bill Bischoff performs very well competition designed performance does represent actual aircraft no scale bonus points offered 15 Carrier capable low-speed times three minutes Its fine handling quality due its short nose relatively large tail volume ratio discussed later also allows model balanced farther aft possible some 15 Ken Smiths Sig Skyray 101st Screaming Eagles contest Whittier Narrows California Naccarato photo Tail Volume Ratio formula diagram Vt St x Sm x MAC Vt volume ratio St area lt moment arm area MAC Mean Aerodynamic Chord win g Carrier models sacrificing highspeed stability Wings made foam using prefabricated Halflite cores intended 1/2A Combat Plans available Bill 108 Model Aviation lip Sweeney Jrs first Carrier Curtiss Seamew Flying Models plans 15 Carrier Naccarato photo Sniper designed Bill Bischoff 15 Carrier competition Plan flying ability details text Jason Hayes original TBF Avenger Profile Carrier OS 35 rudder outboard aileron Naccarato photo SW St MAc MAC Bischoff 3734 Tuesdell Dallas TX 75244 Tel 214 247-5046 model listed reference purposes along fullscale prototype aircraft next section model design Carrier Model Selection years ago devoted column selecting prototype upon base CL Navy Carrier model Since style flying types models have changed considerably modelers learned gain optimum scores under current scoring system Ive received few calls since Nationals Carrier modelers seeking alternatives MO-l calls combined realization original ideas what makes good Carrier model no longer appropriate have prompted update information repeat subject Other relative simplicity MO-i design experience gained modelers using no good reasons selecting prototype over other fact good reason selecting MO-l its fuselage small know statement sounds backwards hear out smaller fuselage offers less drag larger models other factors overshadow drag fuselage drag producers cant avoided engine lines landing gear hook fixed Other hiding inside other parts model isnt anything can about drag produce Fuselage drag small comparison large fuselage conceals engine thus compensates increased fuselage drag reducing engine drag Control systems engine mounts fuel tanks easier fit larger fuselages fuselage large cross section can built lighter small fuselage still retain same strength dont usually build way least its option its fixed width fuselage Profile Carrier model different story smaller fuselage lighter two ways improve scores qr GENERIX P 0 Box 771 East Windsor NJ 08520 Orders 800-645-KITS Information 609-448-1122 Add $5 00 COD Write Free Catalog Custom Kit Cutters Plans Anyone Elses CL Navy Carrier go faster during high speed go slower during low speed no surprises statement Todays models slower flown before scoring change Since engine technology hasnt declined over last 15 20 years line sizes same reason has lie models three major contributors models bigger drag models heavier slower acceleration external lines line guides add drag Unfortunately little can about some factors need larger models overall scoring advantage get improved low-speed performance few prototypes lines can enclosed wing still obtain adequate line sweep reliable low-speed flight Weight can kept near old standards Class II models doing takes little effort As always speed primarily factor power limited contribution design prototype low-speed end equation factors important 20 years ago no longer important ones Lowspeed scores primarily factor wing loading Lighter wing loading produces better low-speed scores Because weights models components fixed way reduce wing loading increase wing area Wing flaps very common older models have lost importance under present method flying full stall Models flaps lighter easier build Since no longer need worry about complex flap configurations some prototypes options Since primary low-speed design consideration size good place start selecting design deciding what wing area use believe good low-speed performance model should have least 300 square inches wing area Few eligible prototypes cannot meet criteria Supermarine 322 few twin-engine patrol aircraft 250 square inches less built 44-inch span Lockheed U-2 yes legal prototype manages 135 square inches except Supermarine 322 designs GATOR $35 & HMIGHTY BATPLANE Span 38 380 sqin 15-$2250 & H Span 24 30 o 3 ch ht 2 3 lbs.$4400 & H Span 32 Kit builds two planesl & easy toeo o & H Span 48 build Easy ,nttradio d Class winner ign ages want tostructions win fly aiild & Fly Gator Notforsale $5 S & H AT RX-7 744 8995ng 32-46 5S&Hh 5-5 pan 48 ch radio d $5 S & H Span 42 15-32 ht 2-35 lass Design Flies like onlbs ormance very stable low & na ages instructions high speeds 3 Take Off llt say Build & Fly imited Knife Edge Rates [tI7RI es famous models big contests past come alive again Dave Thornburgs 300-page history American aeromodeling DO YOU SPEAK MODEL AIRPLANE first twin pusher latest Ugly Stik Dozens illustrations USA reds memories Order copy today Just $1995 postpaidcash check Visa/MO Pony X Press 5 Monticello Dr Albuquerque NM 87123 505 299-8749 Still Available OLD BUZZARDS SOARING BOOK 160 pgs about thermals $1695 pp JR Pal full-spectrum engine fuel treatment specially formulated R/C models Bends electro chemically metal smooth pitted surfaces Reduce friction & heat Improves performanci Reduce engine wear ces repair costs CAN BE USED AS RUN-OFF OIL TO CLEAIt ENGINES SEFORSAFTER AVAILABLE IN RANDY SQUEEZE BOTtlES OZ 5595 $1295 Ask Boca Bearings local hobby shop Call 4071 998-0004 Toll-free USA 800 332-3256 Toll-free Canada 800 553-3256 Faa 0rder 1407998-0119 send $300 catalog Name Aditreas City ________________ State Zip Boca Bearing Dept C Suite 2304 arh Rd Ratun FL 33433 June 1994 109 five minutes can upgraoe stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded supertough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case top * Guaranteed against breakage year * Why pay $3995 $2995 BBC-l Fits FUTABA 528/S 128 538/S 138 S48/S 148 Servos set 4$2595 ~-2As above set I$695 3Fits AIRYRONICS 94102 Servos set 4$2595 4As above set I$695 inw-5 Ball Bearing Only JR 501 507 RCD APOLLO 05 10 FOCUS H5300 H5500 ACE 330 342 342HS TOWER TS-5 Servos set 4$1995 Add $300 Shipping Handling orders 22406714 692-1393 Info Onlycalifornia Realdents Add 775% Satea Tax Yorba LiflaB t800 845-8978 Orders OnlyVISA MASTERCARD Accepted WindS~~Company 1405 Hopkins Ave Dover DE 199014003 PRODUCtS BY VINWY ODNPAEY SCAIIOVER RD OR 3D .... * 9996 DOT MATRIX PLOTIER C ..S 9996 MODELERS COMBINATION ..... $14995 AERODRAW RD 96 5A13 SRI3YEIAINKABKOFWIUI8DA3IT NEW CDROM & TIFF FORMATS PAUL MATT COLLECTION $9996 COMING B S HIRSCH COLLECTION RD DOS V6 LNPUT INC DESIGNCAD $ 17500 ..$ 17500 DESIGNCAD 3D DOS V4 000 DESIGNCAD EXPERT .. $69700 MODELCAD DOS VS SCANPRO .4248OO VINYLCAD 00 FRODUCII BY C & 3 NICRODYBERUS WINGDESIGNER PRO ......... $11996 DESIGNCAD 2D DOS V6 COMBO NO 3 GNCAD 2D DOS ye AERODRAW AND SCANOVER FOR ONLY 827495 WINDSOFT 150 ROLL PAPER NO CROSS PERFORATIONS IRFc2EJLAF $i9QWIXE $299 FAST ACCURATE CAD DRAWINGS ARE NO ACCIDENT CALL 1302678--5174 TODAY TO EXPLORE THE FUTURE lYITH BILL FAST CREDIT CARD ORDERS ACCEPTED BY THESE FINE RETAILERS PRICES MAY VARY AND DO NOT INCLUDE SHIPPING AND HANDLING SCALE PLANS AND WEST VALLEY HOBBIES 1 BOB HOLMAN PLANS PHOTO SERVICEORDEES 1800--353--3901 19098863969 FAX/INPfr 19102925239 FAXANFI 1-6028498422 FAX 19098899307 CZIi] VISA / MC ACCEPTED A / MC ACCEPTED VISA / MC ACCEPTED EAD OUR JAN 92 AUG 92 & FEB 94 RCM PRODUCT REVIEWS RETAILERS JOIN US IN SUPPORT OF COMPUTER IA90T Y @OOeOeeOOOOe@OOgegggOOgggeeOgOOg@Oeg.. JOHN SULLIVAN FOAM FLOATS 28 32 36 40 48 SUPPLIE5 CUB 114 SCALE LANDING GEAR 2 51ZE5 Sig Balsa USA eto w/Bsngo 1ovro.$1555O o $450 13 Balsa USA Covers $1300 $250 ZENOAH 023 GSS 062 Engines CUSTOMIZED SPEING STARTER PLYWOOD MOUNT MUFFLERS ACCESORIES Brochure SASE hJWENRON PEClALTIE5 2895 Estates Ave 510 7580179Po Box 663 Pinole CA 94564 vIsA/MccKcoDCAAesaddSalesTax SOOe@SOeeggoe@eeoeg BALSA SHEETS 1/16 3 3345 3/32 1 2 4055 1/0 0 2 4359 3/16 5 2 4967 1/4 5 35677 5/14 5 26587 3/4 5 273100 12LL2JAL12 1/16 5 33645 3/32 34454 1/8 5 35574 3/19 36384 1/4 5 37598 5/15 11 303315 3/8 0 393135 1/2 0114160 2ZW222 1/16 5 45876 3/32 0 47295 1/8 5 482139 3/16 0 494126 1/4 3 4115139 5/16 5 4144190 3/8 3 4170235 1/2 5 4235273 AflOITIONAL aizza BALSA STIcKs 6 1su 1/18 5 1/808 1/18 0 1/41014 1/19 0 0/81120 3L2iLIL22A.2A S 1/32 0 3/320911 1/30 8 U.0914 6 3/321/41118 /2 0 3/41004 6 2L2L1122-2* 1/8 0 180910 6 1/8 0 1/31310 1/8 9 3/80019 6 ILLL212222* 3/18 0 3/141019 5 0/18 0 3/81731 3L11LILZ2221 4 0 1/8~ 1/4 1/2 34 1/8 0 3/800 45 1L4124232 lLli53L112232 1/8 0 3/82914 1/801/41149 3/8 0 3/084585 2LL222222 1/2 8 1/43855 1/2 0 3/30868 1L2.S222125 32kLiIO1222 3/4 9 3/475045 CUSTOM CUTTING 600060gg SeeSgOeg 0O500 110 Model Aviation o* arent very practical Carrier competition Grumman Guardian Fairey Barracuda just under 300 square inches 44-inch span extremes aspect ratio among acceptable candidate prototypes Others go maximum little 440 square inches Vought OS2U Kingfisher prefer 350 375 square inches wing area because believe produces best low speed sacrificing high-speed performance MO-i 44-inch span about 375 square inches has successfulbut other prototypes will fit criterion What necessary aspect ratio 55 lower Aspect ratio measure skinny wing Its definition wingspan divided wings average chord Because defining average chord some wings complex others accepted formula wingspan squared divided wing area table prototype aircraft accompanies column includes aspect ratio data comparison other factor acceptable low-speed performance aircraft control model cant reliably held stall low-speed scores will suffer measure control effectiveness purposewith apologies aerodynamics instructors tail volume ratio larger tail volume ratio produces effective pitch control tolerant changes balance point other words models larger tail volume ratios retain acceptable flight characteristics over broader range balance points smallest acceptable tail volume ratio about 35 few propeller-driven prototypes lower tail volume ratios Only jet-powered aircraft tend have smaller ratios key acceptable handling qualities lies avoiding prototypes have both small tail volume ratios long noses propellers mounted well forward balance point likely require ballast tail likely have fuel variable weight farther forward causing 0 S S 0 0 S 0 S 0 S 0 Continued page 114 visaBJrn/c ELECTRONICS PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Linsurpeased WorkmanshJn 8 Performance trformance System TOP PERFORMANCE K&B ENGINES AirplaneMarine KSB FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B K&B SUPER POXY RESIN tSR K&B SUPER POXY PRIMER ounce annv PaiNT Ridgedale Drive Ogden Utah 84403 Tel 801 476-1177 New Combat pilots lifeblood hobby-sport Without new pilots would die out quickly southern California fortunate have new crop pilots cutting teeth 80 mph Combat prior getting Fast Combat Some have already graduated Nelsonpowered equipment will force reckoned not-too-distant future John Keneally Stan Sweat Brian Coquette Frank Simms pictured months column None guys has national reputation what keeps us going have selling some excess equipment rookie locals can put good use Frank Simms has made pit boxes Combat use some beautiful glow plug caddies both Nelson standard glow plugs avy Carrier/Perry Continued paqe 110 greater variation balance during flight destabilizing effects propeller stronger harder counteract unacceptable Carrier competition Some aircraft listed table illustrate relationship Cabs Aloise s Profile Carrier record holder has low tail volume ratio very short nose scale MO-i also low end tail volume its nose also relatively short Grumman Guardian has long nose tail volume ratio 60 overcomes deficiency quite well Adding wing flaps model adds additional nose-down pitching moment during low-speed flight additional moment requires larger tail volume ratio compensate HIGH QUALITY FLAGPOLE INSTALLATION KiTa 3 Kit Styles Available FI e ional Telescoping Hardware Kits starting @ 8995 FAll Airs inoisde nylen osrdno US Flag DISCOUNT PRICES ON FLAGS Infotine 317-788-8095Order line 800-522-FLAG ALLIED FLAG DISPLAY CO 6BB9 Shelby St Indianapolis IN 46227 FOUR 1994 SCALE CATALOGS SPPS l6oSuperscale Consbuciton Hans$500 SPPS 120000 Dmmntentation Photos 3W$500 ASP MoctAiaItCorstiudon Hans$500 ASP SraJeAjraat Drawings 3Vs$500 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 1002 Pc Wing Plans $4000 pp LOCKHEED VEGA Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VtstyvlCPHONE/FAX 910 292-5239 114 Model Aviation OLDER WE HA VEOVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 WANTED Ignition Model Engines 1930s 1950s Elf Baby Cyclone Brown Jr Ohisson Etc -ALSOModel Race Cars & Boats Any Parts Spark Plugs Etc Woody Bartelt 1301 W Lafayette Sturgis MI 49091 800-982-5464 616-665-9693 Model Airplane Design PerformanceFor Modeler Thin book must model airplane builder flyern ary covers model airplane gn performance modeler mind Topics ar -ranged sequence leads example designs radio con trol model airplanes Early Develepnientn Terminology Aerodynantira Stability Control Performance Design $2495 shipping handing Toll Free Orders MC VISA & AMEX 1-800-364-BOOK Check MO Challenge Engineering Inc PO Box 67 New Baden TX 77870 TX S5identn add tax-- US cerreecy enty FAITANII RUBBER l/4~ /16 lie THICK 1 lb box $1 6 UPS delivered US 10 lb box $11800 UPs delivered Made USA. CA res add 8% sales tax KSB fuel timers $13 DT $19w Silly putty timers $5 Front ends winders stooges Books Czech P30 props Slick Lube CROCKETT hooks plus kinds super accessories huge bunch great FF kits Send $1 FAI Model Supply 1994 catalog P 0 Box 3957 Torrance CA 90510 Phone 310-830-8939 RC Flight Training Beginner advanced tailored individual long-time modeler full size airplane flight insfruc tor will make progress fun easy during week stay beautiful far western North Carolina Write call information BC Fight Training 7043894968 formula computing tail volume ratio Vt shown beginning column wing tail areas equation self-explanatory trick include wing tail area inside fuselage Simply extend leading trailing edges centerline fuselage ignoring small changes outline occur near fuselage such wing fairings landing gear fairings tail moment arm distance between quarter-chord points wing MAC tail MAC quarter chord point point lies 25% distance leading edge trailing edge MAC Mean Aerodynamic Chord MAC theoretical wing chord represents characteristics entire wing other wing chords combined Ill discuss exact methods computing MAC next column Approximate methods finding MAC non-tapered wing MAC simply wing chord leading edge trailing edge distance measured parallel direction flight tapered wing MAC divides wing two equal areas inboard average chord chord measured half distance fuselage centerline wingtip tapered wings MAC falls about 43% centerlinetip distance reason wings designed approximate optimum efficiency elliptical wing elliptical wings MAC falls 424% centerline-tip distance next column Ill discuss effects design configuration neutral point give some guidelines balancing Carrier models both high- lowspeed handling qualities #J SOUND MUFFLERS auL PIPESAlloy Steel LightweIght Fits Engines 26 Models 25 58 4-Stroke Helicopter TESTED 88DB AT 3 METERS Cisoence Lee. RCM Engine Clinic MUFFLER THAT THINKS ITS PIPE Don Lowe sident AMA STILL THE MOST EFFECE WE MUFFLER Howaggl Coispin Sound Coonntittee Cati 203 577-t 670 send 75y stamped #10 envelope & $3 credited tel order DAVIS MODEL PRODUCTS Dealer Inquiries InvIted P0 Box 141 Dept M Milrord CT O646OJ east Sa DISCOVER ELECTRIC RTP FLYING Catalog including Ballards imports $1 Learn fly planes private geld SKONK WORKS Five 6 day course $350 Open year round 1890 Forestdale AveSend SASE complete info Southwest RC Beavercreek OH 45432Flying 2818 Carolina NE Albuquerque NM 513 429-241187110505-832-6394 el WI$Ie e u — Premium Grade 3/4 oz 38W 10 yrd mm $250 yd Lower Prices 30 yds & up Weights Available Z Other TinLins W 17 Andrews Drive ville AL 36322 205598-2287400-1000 CST PERFORMANCE PLUS FUEL 5%NITRO650 15%KLOTZ/2%CASTOR 10% 750 ANTI POAMERS 15 r It850ANTt WEAR & RUST 25%1695* NITROGEN BLANKET u IN PROCESS 60%o 1950 PERFORMANCE 4-CYCLE 10%NITRO76010%CASTOR/S%SYN 15% 860SAME QUALITY AS 25% 1725FUEL ABOVE cnnnrtrucrv ANDINCACAn flOttSd PATTERN MASTER $35000/$55000 painsed class fimse corered painted wings ssa5 ULTRA LITE RACING WHEELS $1000 ssssohined frees dstrin / ultra list nish dutl sriac used SOFT MOUNTS SM TO XL $895 & UP sold d mounts per pscb/ rubber rated 60 durometer ECONO FUEL PUMP $895 pslyprsplosse baud pump hsgh nisrsprssflfsr eaebotsle sad GAS SMOKE OIL$850 clearfiuidfsr smobe syssems Ins bad odur clean burniac FEATHER LITE micro /Eller $295 slmoss weightl eta miors fitter nsthinc hcbser KitsFtaerls & Accessories Hobby SEND FAX FOR FREE CATALOG DEALFI4S WFLCOME TEL 9098994856 FAX 9098994857 WEST COAST IT YOURSELF Easy use Save Money Save Time As low $1 095 hy FREE FULor wrilF CallSmithy DepI MA Mill l 180034563423023 E 2sd Streot Ask operator MA The Dalles OR 97058 June1994 115 Rubber fe Engine Power Free Flight Display Control Line Electric Power RIC Airplanes Pens valley Hobby Center 837-A W Main St Lansdaie PA 19446 215- 3U4770 R/C Combat Uremlin RUM 12/92 Affordable Custom Cows Modelers Modelers Combos Gremlins Cocos 5t2 Shoes kiss $20 temptasos 00 wood Full kits wood $35 Combat nemalesser shors/foll kit 03021 St57G37 GensIr Lady Spins 3M full wing kits $55 Upgrade glider seas inseomrdiase lrvrl wish nom wine Dodger Larson 25 Qaickro 500 cores -$8 per pair Cussom prr-sbeesod wings available balsa obochi Lotus cot your sent club project Custom core qoastisy discoaosn Ati orders sdd $5 0&H CODs add Sb additional RA Cores tO Sos 063 Soutbbridgo MA OtSSO or/SOS 765-9990 Glider Release Piallorm lets carsy & release glides hack elan existing high wing pewer plane aOached 10$ removed Irow power piece quickly & easily Gileer Release Platform sell-contained lightweight easyto build & lolsottun Plons snclude 2 sheets t0e24 & Complete instruction booklet p50105 Sane check money order lot $1405 plus $1S0 P&l-l 616451 payable Robed Thihodoso PD Son 222 Cheltenhom MD 20623 COMPOS~ES 12360 ass clint rd So SO Randss Cuesmenea 1135 L STOP BENDING YOUR GEAR ADD STRENGTHu KEEP FLEXIBILITY SEND $499 TO enitram Mfg 1129 Montebeilo #49 Gllroy C02 Raise Ii Anis 6101 DC ilectrise Resistance tit Msstss Mosslar Cs-srijsre Hess I Sermos Super Connector Lifetime Guarantee $500 per packet 2 SermOs Super Charging Jack Lifetime Guarantee $550 per packet 3 Sermos Standard Connector $400 per packet 4 Sermos Standard Charging Jack $450 per packet 5 Sermos Standard Arming Switch $400 per packet 6 SermOs Insertion & Extraction Tool $800 per tool Mimiman Order $1500 PLUS $200 tsr Shipping end Handeling Only Certilied Checks Money Orders accepted payment ail orders Distributors Dealers inquiries Invited Pleaoe call 203 322-6254 lot lurther inlormation R/O SNAP CONNECTORS INC Cedar Corners Station lao 16787 Stamford CT 06905
Edition: Model Aviation - 1994/06
Page Numbers: 108, 109, 110, 114, 115
CONTROL LINE NAVY CARRIER CORRECTION February issue incorrectly listed Jim Kirby winner Rookie Year Award 1993 National Championships Navy Carrier Society real Rookie Year Terry Kirby Jims brother Sorry about error Terry Hope see youand brotherin Lubbock next summer Nationals National Aeromodeling Championships Lubbock Texas has publicized extensively Ill repeat location schedule information its relatively central location Lubbock should provide reasonable access large number Carrier modelers expect especially strong showing Dallas-Fort Worth area hope west coast Carrier fliers can attend distance wont discourage northeast should some outstanding competition Art Johnson has volunteered arduous task planning running Carrier events As being written jobs have allocated volunteers still need people willing lend helping hand able assist Carrier events Nationalseven part day contact Art 1818 Oslo Drive Rockford IL 61108 Tel 815 398-3490 addition normal Carrier events will traditional Carrier Awards Banquet annual meeting Navy Carrier Society As usual Navy Carrier Society will present two special awards Rookie Year honors will go contestant entering first Nationals Carrier competition award based performance sportsmanship Eugene Ely Award goes modeler having highest total score three classes Navy Carrier commemorates first man fly land Navy ship used cables sandbags arresting gear Elys openair Curtiss biplane would difficult model too practical competition has done Ted Kraver flew Buckeye Arizona Regionals early 1970s Following regular competition events Navy Carrier Society will sponsor Sportsman Profile Carrier anyone did enter Nationals Carrier events Normal Profile Carrier rules will used Although no firm sponsors time still six months away likely will 15 Carrier event well also possibility Carrier event Sig Skyray 35 model using rules annual Sig contest Details will appear Navy Carrier Society newsletter Sniper 15 Carrier 15 Carrier Aircraft F-4 Phantom II FJ-4 Fury Aloise Profile SBD Dauntless A-7 Corsair II MO-i AM-i Mauler F8F Bearcat OS2U Kingfisher Short Seamew F6F Hellcat F7F Tigercat Sniper 15 A1H Skyraider Boeing XF8B-1 AF-2S Guardian ARVt 287 423 381 445 403 507 481 487 442 518 530 560 473 616 590 677 27 27 35 36 37 38 41 42 45 50 50 52 55 57 58 60 model pictured month designed Bill Bischoff performs very well competition designed performance does represent actual aircraft no scale bonus points offered 15 Carrier capable low-speed times three minutes Its fine handling quality due its short nose relatively large tail volume ratio discussed later also allows model balanced farther aft possible some 15 Ken Smiths Sig Skyray 101st Screaming Eagles contest Whittier Narrows California Naccarato photo Tail Volume Ratio formula diagram Vt St x Sm x MAC Vt volume ratio St area lt moment arm area MAC Mean Aerodynamic Chord win g Carrier models sacrificing highspeed stability Wings made foam using prefabricated Halflite cores intended 1/2A Combat Plans available Bill 108 Model Aviation lip Sweeney Jrs first Carrier Curtiss Seamew Flying Models plans 15 Carrier Naccarato photo Sniper designed Bill Bischoff 15 Carrier competition Plan flying ability details text Jason Hayes original TBF Avenger Profile Carrier OS 35 rudder outboard aileron Naccarato photo SW St MAc MAC Bischoff 3734 Tuesdell Dallas TX 75244 Tel 214 247-5046 model listed reference purposes along fullscale prototype aircraft next section model design Carrier Model Selection years ago devoted column selecting prototype upon base CL Navy Carrier model Since style flying types models have changed considerably modelers learned gain optimum scores under current scoring system Ive received few calls since Nationals Carrier modelers seeking alternatives MO-l calls combined realization original ideas what makes good Carrier model no longer appropriate have prompted update information repeat subject Other relative simplicity MO-i design experience gained modelers using no good reasons selecting prototype over other fact good reason selecting MO-l its fuselage small know statement sounds backwards hear out smaller fuselage offers less drag larger models other factors overshadow drag fuselage drag producers cant avoided engine lines landing gear hook fixed Other hiding inside other parts model isnt anything can about drag produce Fuselage drag small comparison large fuselage conceals engine thus compensates increased fuselage drag reducing engine drag Control systems engine mounts fuel tanks easier fit larger fuselages fuselage large cross section can built lighter small fuselage still retain same strength dont usually build way least its option its fixed width fuselage Profile Carrier model different story smaller fuselage lighter two ways improve scores qr GENERIX P 0 Box 771 East Windsor NJ 08520 Orders 800-645-KITS Information 609-448-1122 Add $5 00 COD Write Free Catalog Custom Kit Cutters Plans Anyone Elses CL Navy Carrier go faster during high speed go slower during low speed no surprises statement Todays models slower flown before scoring change Since engine technology hasnt declined over last 15 20 years line sizes same reason has lie models three major contributors models bigger drag models heavier slower acceleration external lines line guides add drag Unfortunately little can about some factors need larger models overall scoring advantage get improved low-speed performance few prototypes lines can enclosed wing still obtain adequate line sweep reliable low-speed flight Weight can kept near old standards Class II models doing takes little effort As always speed primarily factor power limited contribution design prototype low-speed end equation factors important 20 years ago no longer important ones Lowspeed scores primarily factor wing loading Lighter wing loading produces better low-speed scores Because weights models components fixed way reduce wing loading increase wing area Wing flaps very common older models have lost importance under present method flying full stall Models flaps lighter easier build Since no longer need worry about complex flap configurations some prototypes options Since primary low-speed design consideration size good place start selecting design deciding what wing area use believe good low-speed performance model should have least 300 square inches wing area Few eligible prototypes cannot meet criteria Supermarine 322 few twin-engine patrol aircraft 250 square inches less built 44-inch span Lockheed U-2 yes legal prototype manages 135 square inches except Supermarine 322 designs GATOR $35 & HMIGHTY BATPLANE Span 38 380 sqin 15-$2250 & H Span 24 30 o 3 ch ht 2 3 lbs.$4400 & H Span 32 Kit builds two planesl & easy toeo o & H Span 48 build Easy ,nttradio d Class winner ign ages want tostructions win fly aiild & Fly Gator Notforsale $5 S & H AT RX-7 744 8995ng 32-46 5S&Hh 5-5 pan 48 ch radio d $5 S & H Span 42 15-32 ht 2-35 lass Design Flies like onlbs ormance very stable low & na ages instructions high speeds 3 Take Off llt say Build & Fly imited Knife Edge Rates [tI7RI es famous models big contests past come alive again Dave Thornburgs 300-page history American aeromodeling DO YOU SPEAK MODEL AIRPLANE first twin pusher latest Ugly Stik Dozens illustrations USA reds memories Order copy today Just $1995 postpaidcash check Visa/MO Pony X Press 5 Monticello Dr Albuquerque NM 87123 505 299-8749 Still Available OLD BUZZARDS SOARING BOOK 160 pgs about thermals $1695 pp JR Pal full-spectrum engine fuel treatment specially formulated R/C models Bends electro chemically metal smooth pitted surfaces Reduce friction & heat Improves performanci Reduce engine wear ces repair costs CAN BE USED AS RUN-OFF OIL TO CLEAIt ENGINES SEFORSAFTER AVAILABLE IN RANDY SQUEEZE BOTtlES OZ 5595 $1295 Ask Boca Bearings local hobby shop Call 4071 998-0004 Toll-free USA 800 332-3256 Toll-free Canada 800 553-3256 Faa 0rder 1407998-0119 send $300 catalog Name Aditreas City ________________ State Zip Boca Bearing Dept C Suite 2304 arh Rd Ratun FL 33433 June 1994 109 five minutes can upgraoe stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded supertough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case top * Guaranteed against breakage year * Why pay $3995 $2995 BBC-l Fits FUTABA 528/S 128 538/S 138 S48/S 148 Servos set 4$2595 ~-2As above set I$695 3Fits AIRYRONICS 94102 Servos set 4$2595 4As above set I$695 inw-5 Ball Bearing Only JR 501 507 RCD APOLLO 05 10 FOCUS H5300 H5500 ACE 330 342 342HS TOWER TS-5 Servos set 4$1995 Add $300 Shipping Handling orders 22406714 692-1393 Info Onlycalifornia Realdents Add 775% Satea Tax Yorba LiflaB t800 845-8978 Orders OnlyVISA MASTERCARD Accepted WindS~~Company 1405 Hopkins Ave Dover DE 199014003 PRODUCtS BY VINWY ODNPAEY SCAIIOVER RD OR 3D .... * 9996 DOT MATRIX PLOTIER C ..S 9996 MODELERS COMBINATION ..... $14995 AERODRAW RD 96 5A13 SRI3YEIAINKABKOFWIUI8DA3IT NEW CDROM & TIFF FORMATS PAUL MATT COLLECTION $9996 COMING B S HIRSCH COLLECTION RD DOS V6 LNPUT INC DESIGNCAD $ 17500 ..$ 17500 DESIGNCAD 3D DOS V4 000 DESIGNCAD EXPERT .. $69700 MODELCAD DOS VS SCANPRO .4248OO VINYLCAD 00 FRODUCII BY C & 3 NICRODYBERUS WINGDESIGNER PRO ......... $11996 DESIGNCAD 2D DOS V6 COMBO NO 3 GNCAD 2D DOS ye AERODRAW AND SCANOVER FOR ONLY 827495 WINDSOFT 150 ROLL PAPER NO CROSS PERFORATIONS IRFc2EJLAF $i9QWIXE $299 FAST ACCURATE CAD DRAWINGS ARE NO ACCIDENT CALL 1302678--5174 TODAY TO EXPLORE THE FUTURE lYITH BILL FAST CREDIT CARD ORDERS ACCEPTED BY THESE FINE RETAILERS PRICES MAY VARY AND DO NOT INCLUDE SHIPPING AND HANDLING SCALE PLANS AND WEST VALLEY HOBBIES 1 BOB HOLMAN PLANS 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JOHN SULLIVAN FOAM FLOATS 28 32 36 40 48 SUPPLIE5 CUB 114 SCALE LANDING GEAR 2 51ZE5 Sig Balsa USA eto w/Bsngo 1ovro.$1555O o $450 13 Balsa USA Covers $1300 $250 ZENOAH 023 GSS 062 Engines CUSTOMIZED SPEING STARTER PLYWOOD MOUNT MUFFLERS ACCESORIES Brochure SASE hJWENRON PEClALTIE5 2895 Estates Ave 510 7580179Po Box 663 Pinole CA 94564 vIsA/MccKcoDCAAesaddSalesTax SOOe@SOeeggoe@eeoeg BALSA SHEETS 1/16 3 3345 3/32 1 2 4055 1/0 0 2 4359 3/16 5 2 4967 1/4 5 35677 5/14 5 26587 3/4 5 273100 12LL2JAL12 1/16 5 33645 3/32 34454 1/8 5 35574 3/19 36384 1/4 5 37598 5/15 11 303315 3/8 0 393135 1/2 0114160 2ZW222 1/16 5 45876 3/32 0 47295 1/8 5 482139 3/16 0 494126 1/4 3 4115139 5/16 5 4144190 3/8 3 4170235 1/2 5 4235273 AflOITIONAL aizza BALSA STIcKs 6 1su 1/18 5 1/808 1/18 0 1/41014 1/19 0 0/81120 3L2iLIL22A.2A S 1/32 0 3/320911 1/30 8 U.0914 6 3/321/41118 /2 0 3/41004 6 2L2L1122-2* 1/8 0 180910 6 1/8 0 1/31310 1/8 9 3/80019 6 ILLL212222* 3/18 0 3/141019 5 0/18 0 3/81731 3L11LILZ2221 4 0 1/8~ 1/4 1/2 34 1/8 0 3/800 45 1L4124232 lLli53L112232 1/8 0 3/82914 1/801/41149 3/8 0 3/084585 2LL222222 1/2 8 1/43855 1/2 0 3/30868 1L2.S222125 32kLiIO1222 3/4 9 3/475045 CUSTOM CUTTING 600060gg SeeSgOeg 0O500 110 Model Aviation o* arent very practical Carrier competition Grumman Guardian Fairey Barracuda just under 300 square inches 44-inch span extremes aspect ratio among acceptable candidate prototypes Others go maximum little 440 square inches Vought OS2U Kingfisher prefer 350 375 square inches wing area because believe produces best low speed sacrificing high-speed performance MO-i 44-inch span about 375 square inches has successfulbut other prototypes will fit criterion What necessary aspect ratio 55 lower Aspect ratio measure skinny wing Its definition wingspan divided wings average chord Because defining average chord some wings complex others accepted formula wingspan squared divided wing area table prototype aircraft accompanies column includes aspect ratio data comparison other factor acceptable low-speed performance aircraft control model cant reliably held stall low-speed scores will suffer measure control effectiveness purposewith apologies aerodynamics instructors tail volume ratio larger tail volume ratio produces effective pitch control tolerant changes balance point other words models larger tail volume ratios retain acceptable flight characteristics over broader range balance points smallest acceptable tail volume ratio about 35 few propeller-driven prototypes lower tail volume ratios Only jet-powered aircraft tend have smaller ratios key acceptable handling qualities lies avoiding prototypes have both small tail volume ratios long noses propellers mounted well forward balance point likely require ballast tail likely have fuel variable weight farther forward causing 0 S S 0 0 S 0 S 0 S 0 Continued page 114 visaBJrn/c ELECTRONICS PRODUCTS FOR Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems Linsurpeased WorkmanshJn 8 Performance trformance System TOP PERFORMANCE K&B ENGINES AirplaneMarine KSB FUELSK&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B K&B SUPER POXY RESIN tSR K&B SUPER POXY PRIMER ounce annv PaiNT Ridgedale Drive Ogden Utah 84403 Tel 801 476-1177 New Combat pilots lifeblood hobby-sport Without new pilots would die out quickly southern California fortunate have new crop pilots cutting teeth 80 mph Combat prior getting Fast Combat Some have already graduated Nelsonpowered equipment will force reckoned not-too-distant future John Keneally Stan Sweat Brian Coquette Frank Simms pictured months column None guys has national reputation what keeps us going have selling some excess equipment rookie locals can put good use Frank Simms has made pit boxes Combat use some beautiful glow plug caddies both Nelson standard glow plugs avy Carrier/Perry Continued paqe 110 greater variation balance during flight destabilizing effects propeller stronger harder counteract unacceptable Carrier competition Some aircraft listed table illustrate relationship Cabs Aloise s Profile Carrier record holder has low tail volume ratio very short nose scale MO-i also low end tail volume its nose also relatively short Grumman Guardian has long nose tail volume ratio 60 overcomes deficiency quite well Adding wing flaps model adds additional nose-down pitching moment during low-speed flight additional moment requires larger tail volume ratio compensate HIGH QUALITY FLAGPOLE INSTALLATION KiTa 3 Kit Styles Available FI e ional Telescoping Hardware Kits starting @ 8995 FAll Airs inoisde nylen osrdno US Flag DISCOUNT PRICES ON FLAGS Infotine 317-788-8095Order line 800-522-FLAG ALLIED FLAG DISPLAY CO 6BB9 Shelby St Indianapolis IN 46227 FOUR 1994 SCALE CATALOGS SPPS l6oSuperscale Consbuciton Hans$500 SPPS 120000 Dmmntentation Photos 3W$500 ASP MoctAiaItCorstiudon Hans$500 ASP SraJeAjraat Drawings 3Vs$500 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 1002 Pc Wing Plans $4000 pp LOCKHEED VEGA Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VtstyvlCPHONE/FAX 910 292-5239 114 Model Aviation OLDER WE HA VEOVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 WANTED Ignition Model Engines 1930s 1950s Elf Baby Cyclone Brown Jr Ohisson Etc -ALSOModel Race Cars & Boats Any Parts Spark Plugs Etc Woody Bartelt 1301 W Lafayette Sturgis MI 49091 800-982-5464 616-665-9693 Model Airplane Design PerformanceFor Modeler Thin book must model airplane builder flyern ary covers model airplane gn performance modeler mind Topics ar -ranged sequence leads example designs radio con trol model airplanes Early Develepnientn Terminology Aerodynantira Stability Control Performance Design $2495 shipping handing Toll Free Orders MC VISA & AMEX 1-800-364-BOOK Check MO Challenge Engineering Inc PO Box 67 New Baden TX 77870 TX S5identn add tax-- US cerreecy enty FAITANII RUBBER l/4~ /16 lie THICK 1 lb box $1 6 UPS delivered US 10 lb box $11800 UPs delivered Made USA. CA res add 8% sales tax KSB fuel timers $13 DT $19w Silly putty timers $5 Front ends winders stooges Books Czech P30 props Slick Lube CROCKETT hooks plus kinds super accessories huge bunch great FF kits Send $1 FAI Model Supply 1994 catalog P 0 Box 3957 Torrance CA 90510 Phone 310-830-8939 RC Flight Training Beginner advanced tailored individual long-time modeler full size airplane flight insfruc tor will make progress fun easy during week stay beautiful far western North Carolina Write call information BC Fight Training 7043894968 formula computing tail volume ratio Vt shown beginning column wing tail areas equation self-explanatory trick include wing tail area inside fuselage Simply extend leading trailing edges centerline fuselage ignoring small changes outline occur near fuselage such wing fairings landing gear fairings tail moment arm distance between quarter-chord points wing MAC tail MAC quarter chord point point lies 25% distance leading edge trailing edge MAC Mean Aerodynamic Chord MAC theoretical wing chord represents characteristics entire wing other wing chords combined Ill discuss exact methods computing MAC next column Approximate methods finding MAC non-tapered wing MAC simply wing chord leading edge trailing edge distance measured parallel direction flight tapered wing MAC divides wing two equal areas inboard average chord chord measured half distance fuselage centerline wingtip tapered wings MAC falls about 43% centerlinetip distance reason wings designed approximate optimum efficiency elliptical wing elliptical wings MAC falls 424% centerline-tip distance next column Ill discuss effects design configuration neutral point give some guidelines balancing Carrier models both high- lowspeed handling qualities #J SOUND MUFFLERS auL PIPESAlloy Steel LightweIght Fits Engines 26 Models 25 58 4-Stroke Helicopter TESTED 88DB AT 3 METERS Cisoence Lee. RCM Engine Clinic MUFFLER THAT THINKS ITS PIPE Don Lowe sident AMA STILL THE MOST EFFECE WE MUFFLER Howaggl Coispin Sound Coonntittee Cati 203 577-t 670 send 75y stamped #10 envelope & $3 credited tel order DAVIS MODEL PRODUCTS Dealer Inquiries InvIted P0 Box 141 Dept M Milrord CT O646OJ east Sa DISCOVER ELECTRIC RTP FLYING Catalog including Ballards imports $1 Learn fly planes private geld SKONK WORKS Five 6 day course $350 Open year round 1890 Forestdale AveSend SASE complete info Southwest RC Beavercreek OH 45432Flying 2818 Carolina NE Albuquerque NM 513 429-241187110505-832-6394 el WI$Ie e u — Premium Grade 3/4 oz 38W 10 yrd mm $250 yd Lower Prices 30 yds & up Weights Available Z Other TinLins W 17 Andrews Drive ville AL 36322 205598-2287400-1000 CST PERFORMANCE PLUS FUEL 5%NITRO650 15%KLOTZ/2%CASTOR 10% 750 ANTI POAMERS 15 r It850ANTt WEAR & RUST 25%1695* NITROGEN BLANKET u IN PROCESS 60%o 1950 PERFORMANCE 4-CYCLE 10%NITRO76010%CASTOR/S%SYN 15% 860SAME QUALITY AS 25% 1725FUEL ABOVE cnnnrtrucrv ANDINCACAn flOttSd PATTERN MASTER $35000/$55000 painsed class fimse corered painted wings ssa5 ULTRA LITE RACING WHEELS $1000 ssssohined frees dstrin / ultra list nish dutl sriac used SOFT MOUNTS SM TO XL $895 & UP sold d mounts per pscb/ rubber rated 60 durometer ECONO FUEL PUMP $895 pslyprsplosse baud pump hsgh nisrsprssflfsr eaebotsle sad GAS SMOKE OIL$850 clearfiuidfsr smobe syssems Ins bad odur clean burniac FEATHER LITE micro /Eller $295 slmoss weightl eta miors fitter nsthinc hcbser KitsFtaerls & Accessories Hobby SEND FAX FOR FREE CATALOG DEALFI4S WFLCOME TEL 9098994856 FAX 9098994857 WEST COAST IT YOURSELF Easy use Save Money Save Time As low $1 095 hy FREE FULor wrilF CallSmithy DepI MA Mill l 180034563423023 E 2sd Streot Ask operator MA The Dalles OR 97058 June1994 115 Rubber fe Engine Power Free Flight Display Control Line Electric Power RIC Airplanes Pens valley Hobby Center 837-A W Main St Lansdaie PA 19446 215- 3U4770 R/C Combat Uremlin RUM 12/92 Affordable Custom Cows Modelers Modelers Combos Gremlins Cocos 5t2 Shoes kiss $20 temptasos 00 wood Full kits wood $35 Combat nemalesser shors/foll kit 03021 St57G37 GensIr Lady Spins 3M full wing kits $55 Upgrade glider seas inseomrdiase lrvrl wish nom wine Dodger Larson 25 Qaickro 500 cores -$8 per pair Cussom prr-sbeesod wings available balsa obochi Lotus cot your sent club project Custom core qoastisy discoaosn Ati orders sdd $5 0&H CODs add Sb additional RA Cores tO Sos 063 Soutbbridgo MA OtSSO or/SOS 765-9990 Glider Release Piallorm lets carsy & release glides hack elan existing high wing pewer plane aOached 10$ removed Irow power piece quickly & easily Gileer Release Platform sell-contained lightweight easyto build & lolsottun Plons snclude 2 sheets t0e24 & Complete instruction booklet p50105 Sane check money order lot $1405 plus $1S0 P&l-l 616451 payable Robed Thihodoso PD Son 222 Cheltenhom MD 20623 COMPOS~ES 12360 ass clint rd So SO Randss Cuesmenea 1135 L STOP BENDING YOUR GEAR ADD STRENGTHu KEEP FLEXIBILITY SEND $499 TO enitram Mfg 1129 Montebeilo #49 Gllroy C02 Raise Ii Anis 6101 DC ilectrise Resistance tit Msstss Mosslar Cs-srijsre Hess I Sermos Super Connector Lifetime Guarantee $500 per packet 2 SermOs Super Charging Jack Lifetime Guarantee $550 per packet 3 Sermos Standard Connector $400 per packet 4 Sermos Standard Charging Jack $450 per packet 5 Sermos Standard Arming Switch $400 per packet 6 SermOs Insertion & Extraction Tool $800 per tool Mimiman Order $1500 PLUS $200 tsr Shipping end Handeling Only Certilied Checks Money Orders accepted payment ail orders Distributors Dealers inquiries Invited Pleaoe call 203 322-6254 lot lurther inlormation R/O SNAP CONNECTORS INC Cedar Corners Station lao 16787 Stamford CT 06905