rflOsOs sy Muss OrOWS ana t flu autfior ALTHOUGH too late see WW II combat Tigercat has called hottest powerfiul twin-engine fighter its day Its angular wing full-bodied nacelles radial engines clearly show corpulence usually associated other cats Grummans WW II family surprise Tigercats de sign its extremely narrow very graceful fuselage virtually built around pilots dimen sions giving slim almost sailplane-like look nacelles proportionally longer widely spaced twin-engine subjects course particular signifi cance selecting rubber-power scale subject since nacelle length propeller size both important items consideration Construction The first consideration design ing Tigercat lightly constructed possible sacrificing strength scale appearance selection light-weight wood major importance wood used dh possible launch twin-engined model holding prop tossing ship two hands simultaneously Dennis prefers cradlesee text retains props cradle being held hand ship other Cradle pulled free ship launched conventional manner Insert Detachable gear static purposes construction prototype model purchased Micro-X- Products P 0 Box 1063 Lorain OH 44055 numerous other sources fine quality materials cannot select wood yourself sure instruct person making selection use care selecting straight grain light wood Much Tigercat built strip stock relatively short length already have recommend make purchase balsa stripper An excellent balsa stripper may purchased approximately $1000 Jim Jones 36631 Ledgestone Mt Clemens MI 43043 Straight-grained wood strips best re-emphasizes need careful wood selection model designed eye maximum efficiency minimum ofmaterials wing stabilizer instance built up strip stock using what has called cracked rib California rib construction Basically technique involves use con ventional leading trailing edges together notched main spar strip stock attached bottom flying surface flat top formed taking strip stock top main spar leading trailing edges respectively airfoil completed adding turbulator spar tapered strip stock half way between main spar leading edge wing should built wash-out tip leading edge flat plan outboard tip trailing edge propped up approximately 3/16 gradually creases makings stabilizing warp half wing have built several wings type have performed welL Being essentially 30 Model Aviation 00500 SO WET YTNWLCN OR RENA BOTTOM ONLYI I,ROOCO NS0WT a340050 \ I FlRRrCw il[F1 SPAR _ [ JI- ____ TAFRILLOFAR 5000040 LIRONEET RAIN SPASNEON \JLlI~ I1-N\IILOOOERONI[IILZOro. USA SOSTUFWCEOTON NASA II ISO II 5 CE El NOYDSO LONINATEN TO IIB NO 400000 NODROSY rAIN STRAWS vOrOI RUUENThO AO%OOPS WINOI4INRILOROERNNSNARED YAW ANON EUOON orosNO MOE SW Fr7 FSF PENOFror SOONER ONROON OLEFY WOE 05000AINSTOLNONY- -I-- AEVEI PANEL ORE IAN NOCET1-lS0IS INNS OSEET-.I-roN STOASPAR I3z Zr INN STAN SLERORT0 CEN FIE =E= --3~ P-SP-FZSSCALE OCYLAW 705 OS LOEESEOOSF SCALA ROd ONNASONE FOR FENTON NACELLE LAOA S S 57 SCASE NErO 0% AIRCRAFT RON MOO JANE ROEFEET ROEC BEST OF WEE 0048 1505 NAN 051041573- --- V2 SCALE LOAIOSO NASA FSOAE 005040 REN OION OIEN WOES SOWONiMJ OVER DANK kAlE WIThCrunuin F7F TigerCat TWIN RUBBER POWERED AENIOSED AND DROWN BY DENNIS C NOENON PEN NY lETS collection flat surfaces wing constructed fashion particularly suited aircraft wood metal skin tissue covering allowed stretch flat eliminating peaks valleys associated covering wing built using conventional ribs technique also uses minimum material result light fuselage nacelles also designed use materials sparingly Only formers located anticipated positions stress made sheet balsa other formers laminated thinly cut strip stock Stabilizer Tradition dictates building new model start its less complicated components give builder feeling construction technique involved mind select cut length tockfairly hard stabilizers leading edge Position over plan mark rib locations notch leading edge receive 1/16 sq strip will serve stabilizers ribs Similarly stabilizers spar cut straightgrain stock 1/16 1/20 thickness trailing edge 1/16 x stab spar trailing edge notched receive 1 / 16 sq stabilizer ribs Place notched trailing leading edges directly over plan securing build ing surface straight pins tips may either laminated 1/16 X 1/64 may cut light 1/16 sheet Add 1/16 stabilizer rib bottoms Next add stabilizer spar using 1/16 square stock construct upper portions stab ribs As leading edge k upper portions stabilizers ribs may simply fitted remaining IIIIII IIII April 1980 31 Co N w 0 w w C, w -J Sel -J C, z 0 w N ci -J -J UMaximum iency obtained minimum use materials ewing employs cracea rio California rib construction Wing cross section basically two triangles base base turbulator spar top between main spar leading edge may drive airfoil purists up wall such sections have used complete success radio combat well portions notches cut stabilizers ribs cut broken stabilizer spar leading edge Similarly upper parts theso can joined trailing edge As stabilizers ribs may fit notches thethe trailing edge 1/16 thick will find sparit necessary first cut upper part stabilizer rib length equal distance stabilizer spar its trailing edge avoid bumpy trailing edge remove upper part stabilizer rib cut underside rear part acute angle has greater surface contact 1/16 sq bottom portion rib upper surface ribs now should blend smoothly trailing edge require little sanding complete air foil shape Next add stabilizers turbulator spar hard 1/20 square 1/16 sq strip stock dry round leading edge tips taper trailing edge turbulator spar Win owing basic technique described stabilizer carefully select pieces 3/32 X p stock notch places shown plan wings trailing edge leading edge constructed somewhat differ ently piece 1 / 16 sq butted against piece reater strength 1/16 portion leading edge notched receive flat bottom pieces wings ribs main spar cut 1/16 sheet notched shown plan Begin wing construction positioning securing notched leading trailing edges Next cut pieces 1/16 sq fitted appropriate notches thus joining leading trailing edges Before joining pieces permanently however place strip 3/16 thick stock outer tip trailing edge will give built wash-out greater stability glue 1/16 sq bottom portions ribs leading trailing edges Next position main spar over plan glue ittothe 1/16 sq lowerportionsofeachwing rib upper portions wing rib fashioned / 16 sq manner similar described stab upper portions ribs place glue turbulator spar place shown Finish adding tip made either 1/16 sheet stock laminated either event will necessary break wing tip goes trailing edge upper portion main spar tip goes upper portion main spar tip turbulator spar turbu lator spar down leading edge Round leading edge wing tips taper trailing edge Fuselage design seeks use minimum materials maximum effect Accordingly formers F-i F-5 F-6 cut 1/16 sheet F-8 F-9 F-12 cut 1/32 sheet sheet wood formers positions requiring strength left solid Notice former notched receive longerons stringers formers key location fuselag&s longitudinal struc tural members remaining formers shown plan laminated form supports stringers etc place requiring high structural strength fuselage fin por tion vertical stabilizer built unit keep basic fuselage shape true sug gested itbe built aug Forthe original jig simply piece nite fuselage profile drawn locations formers cut away bottom 1/16 X after having approximately 1/16 deep notches cut receive hollow formers fastened masonite jig using bits masking tape jig can placed vise nailed edge workbench Next solid formersF-1 F-5 F-6 F-8 F-9 F-12 positioned bottom keel top keel added formers glued place using small plastic triangle square keel 1/16 undersized built-up formers con structed cutting 1/64 strips 1/16 sheet Four strips joined bent around shape shown plan create hollow former Once positioned laminated pieces cemented using Zap cyanoacrylic glue hollow completed adding 1/16 sq cross braces shown plan hollow formers fitted keel structure cemented either white glue model cement due minimal surface contact Next 1 / 16 X longerons cut notched fitted place longerons fit snugly solid formers merely touch hollow formers Cyanoacrylic glue used cement longerons solid formers view minimal surface contact either white glue model airplane cement used attach hollow formers longerons Stringers added fitting notches cut solid formers gluing white glue model cement hollow formers Building fuselage fashion uppermost lowermost stringers position before fuselage frame removed masonite jig final stringers added once fuselage removed Continued page 112 32 Model Aviation rur convenience winaing two motors Inis winoing stana positions piane ana anacnes TO tfl6 two winding peg tubes aft portion nacelles Sterling 8-in plastic props turned two ioops FAI flat rubber stand fully described text rully wouna pun etteurieu iu ne erie, 10JP. arqra. unhs ofta a, wirn lightweight oesrgn pniosophy coat clear epplied Basic color typical Navy dark blue green white bands Color misted spray gun Winning Ideas FOURMOST RETRACTABLE TOW HOOK RELEASE Price $675 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight Y2 oz OTHER FOURMOST PRODUCTS 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE S250 IDEAL FOR QUICKY 500 PRICE S525Z2ZZ Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Send SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 357-2732 halftone photo merely enlarges dots really sharp photo can magnified read stenciled legends plane locate panel lines Best source photos modelers camera prototype can found Dedicated researchers travel great distances spend days photographing measuring plane Bob Dolly Wischer RL 1 S-221 Lapham Peak Roa4 Delafiel4 WI 53018 Tigercat/Norman Continued page 32 jig As indicated shape former F-i 2 vertical tail tapered thickness two hori zontal ribs fin cut scrap 1/20 1/16 sheet stock tapered width equal F-12 join down thickness fins leading edge Also contour upper fuselage immediately behind cockpit somewhat rounded sug gested area between formers F-S F-7 filled tapering pieces 1/16 sheet sanded rounded better approximate look full-size aircraft rudder move able part vertical tail built separately Nacelles Using same techniques described constructing fuselage nacelle formers longerons cut assembled masonite jig hold true being assem bled As nacelles mirror other will have flip formers shown plan make left nacelle Component AssembIy wing halves joined fuselage center such way leading edge half wing joined front former F-S main spars meet just behind former F-6 trailing edges join former F-8 will necessary deeply notch F-8 permit trailing edges pass through will also necessary remove portions fuselage stringers block passage main spar approximate dihedral angle has indicated formers F-5 F-6 will help aligning wing halves dihedral full-size aircraft substantial dihedral model approximately 1 rib Once wing halves positioned leading trailing edges main spar meet indicated two halves joined together epoxy Before wing joined fuselage check has approximately two degrees positive incidence use side longeron reference line wing joined per40 AIRFLO ENGINE MOUNT manently fuselage using epoxy scrap balsa fill gaps between wing nearby supporting fuselage formers area between root rib fuselage filled 1/3 2 sheet both strength base adhering tissue covering Similarly 1/32 X p pieces installed following shape airfoil portions fuselage adjacent wing root adds strength also provides suitable base tissue attachment nacelles joined wing position shown plan angled tops formers N-4 N-5 N-6 N-7 aligned underside wing trailing edge epoxied N-7 leading edge joined N-3 shown Once nacelle place fill area between nacelle underside wing rib nearest 1/32 sheet no need put 1/32 sheet fill top surfaces wing except portion tween N-3 turbulator spar Landing Geai- As indicated plan landing gear model optionat Flying Aces Rules permit subjects retractable gear flown wheels up thus eliminating considerable weight drag intend place model static dis play landing gear may desirable realistic base model decide build landing gear suggested make removable flying favorite technique use plug type small receptacles 1 / 16 aluminum tubing placed points main landing gear members meet fuselage nacelles landing gear components fashioned 1/32 wire pins slide aluminum tube receptacles intend use landing gear model suggested build appropriate recep tacles before proceeding covering Covering Coloring wing fuselage assembled using 1/32 sheet fill key points such wing roots etc have strengthened stress areas have provided anchor points tissue covering Almost Tigercats overall dark navy blue prototype color prototype original aircraft silver first F7 Fs tested Patuxent Maryland yellow July 1978 issue Air Classics magazine contains color photos civilian Tigercat silver red white black trim chose mark model green white bands sported Marine Corps F7 F El Toro Marine Base 1946 keeping general design philosophy suggested after shrinking tissue single coat dope applied As no rubber motor passing through fuselage have opportunity install completely detailed cockpit full pilot figure wish intention model pressures completing July 15 16 1978 Flying Aces National Meet dictated use conventional pilot bust carved styrofoam have unable find good detail F7 F cockpit interior fair amount information contained Model Airplane News book Best Nye VoL 3 Also excellent reference scale details may hadbypurchasingthe 1/72 Monogram plastic kit Propellers I used 8 Sterling plastic propellers cut 7 Static three-bladed propellers also made using 7 Sleek Streak props epoxied appropriate angles model will probably fly three-bladed props 112 Model Aviation 6 MODELS TO CHOOSE FROM OUR BEST SELLER THE CARDINAL SPORT - At Dealer snej snOlpststsa ,Sl55 O5uy atSbl5 50 bOlS5SbI It05 5 50 5P4i5Il ,j$OOa As, platis 5ttiSK5ith04df,,50Il0dOd FsOfl,SI O5OSt4 ato Intotti. Sirsto ad ta tfI 55 511dt5I COiai SOdy 51 YOSt 9t 555 COthI hO,. poshtOds t,oOlO 05 stnt sato ftt antOstrtWtO 4 tiittOtSSiflQ IttOtOt eOOtU5 on. 05 Sf545 0S50bI Ittlo 001 nO 554005 OdOSIttIs 50 i5t51155 0 5001055 000015 U. rail 5tSbilOO 00405 0050 s 51. ebsoted tea, Os a, OOse Md 5085044 50 OptS.flInadatiolAol 5 OsoljS5 4-Channel 25-40 Size 83 Wingspan 20-22 Os Loading Vey Aerobadic THE TRIPLE THREAT N QUIKRAY-500 has eneed meet need model could built last very stronj meet requirements AMA Sport Pylon Events Quicky 500 Pylon Racing Fun Fly Events around Sport Flying Trainer general Pattern Flying baby strong Bull lightandlast baby will turn Pylon tighter anything have seen will snap stall out. QUIKRAY-500 can built complete air Twelve Fifteen hours covered materials auch SUPER MONOKOTE other covering same family U M6DUWS A3AFT jOWL CO INC 500 FAST IS WHAT SHE IS DOCILE Winpapan 50 inArea 503 sq Engine 1945Weight 3l lbs Material AU Balsa Ply needed have yet try Flying Various motors have tried thus far best results obtained two 20 ioops flat rubber braided better distribute weight unwound motors rear motor pegs short lengths 1/16 aluminum tubing positioned rear nacelle As motors considerably longer distance between rear motor peg propeller hook used propeller hooks bent such way give appearance Z viewed behind such hook inhibits tendency long motor climb propeller shaft bind mechanism generally use winding stooge recommend constructed basic stooge large H-shaped structure pieces 1/16 plywood sheet portions tongue depressors attached fit either side rear motor peg nacelle Apiece 1/32 wire passed through tongues through rear motor peg holding unit stable motor wound H-shaped stooge base center crossbar between legs H nailed otherwise fastened stake driven ground possible launch model holding propeller tossing both hands once prefer use cradle consisting piece 1 X 2 pine stock two notched upright pieces attached notches uprights fit over propeller hubs keep motors unwinding leaves free hold model area F-8 F-9 right hand hold cradle left Ready launch simply pull cradle away propeller release model conventional way model built fly left under power found necessary add approximately two degrees left side- two degrees down-thrust propellers found necessary off set rudder approximately two degrees left Finished propellers motors model weighs 1 ounces balance point approximately d former F-6 model still being test flown flights date have shown remarkably stable characteristically steep rapid climb under power some difficulty stabilizer initially corrected building thicker lifting stabilizer Unfortunately time Flying Aces Nats yet appreciated nosedown effect lifting stabilizer result although model climbed well under power went steep dive altitude limiting flight time 30 seconds believe design capable minute flights changing elevator angle attack giving up elevator have countered its lifting tendencies considerably improved glide best flight time since making adjust ments has 44 seconds obtained Wright-Patterson Air Force Base Septem ber24 1978 little tinkering thermal knows.. Stolen From van Ames Department Store Athens PARed white blue Aeromaster Kraft 7ch 2-stick OS Blackhead 60 flight box 12V battery / power panel tools Kraft 5-ch receiver servos K&B 35cc RC No bler kit Excalibur kit miscellaneous planes balsa Contact Dale Lent RD 1 Box 43-C Nichols NY 13812 Tel 1-607-699-3144 Athens Police Dept Tel 1-717-885-1401 FF Indoor/Tenny Continued page 33 thermals things such thermal inversions may appear affect model performance unpredictable fashion Only really skilled fliers know use factors predictable ways What Else Well international flimsies put away First World Peanut Gran Prix will held sponsored Doc Martins Miami Indoor Airplane Model Association Peanut Scale contest will CDed directed whatever Butch Hadland UK rest week thats righta whole week will taken NIMAS Fifth NIMAS Annual Record Trials VNART VNART formula may changed somewhat year details remain worked out Anyone misses week modeling will regret CO2 Models has mentioned before column newest very tiny CO2 engines turning up indoor models Photo 1 shows very nice CO2 powered indoor scale model Stearman PT-17 Bob Sie dentopf Hammond IN model flown annual Midwest Indoor Cham pionships held Chicago IL Although door purists doubtless will very nervous over intrusion CO2 models airspace technology very interesting type flying Model Boxes mention World Cham pionship brings forth thoughts model transportation problems Everyone has April1980 113 [I LIGHT AND QUIK ITS FULL OF TIGER EATING GRINS!! AAmco Inc humbly say no WHEELS CONTROL-UNEFREE-FLIGHT VINTAGESMOOTHGOLDEN AGENEW sizes21/iCONTOURsizes2/zBALLOON 3/i3/34234 3/g 13341314 13342/41/2 11443/i1143W11/44/a31/454 11/2511/241/211/2533/4 1/6S/82145141/g61/i SCALE PILOTS DERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS JjLLIAMS SEND 5Ott FOR COMPLETE ILLUSTRATED CATALOG EROS IHZs. DEPT MA PAWNEE ST SAN MARCOS CA 9 HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS CHECK THESE FEATURES twist its locked 2Push twst Its f 3Will come f under heavy engine vibration 4Will short out sPositive spring contact 630 inch lead wire Still atyoirr hobhy p295 dealers & 1 gIF INJITFfl ever associated WCh no matter what type model involved has heard hor ror stories hero stories depending upon viewpoint team members arriving models tatters Sometimes stories funny retrospect however models successfully repaired team member involved has started handicap difficult overcome Whats Needed Obviously desirable endresult effort transport model airplanes around world arrive contest models totally undamaged major hazards shock dropped con tainers vibration various kinds vehicular activity Indoor models aiso sen sitive temperature extremes especially heat Woe unto unwary locks indoor models rented car standing out sum mer sun Such elevated temperatures will warp models quickly very hardest types problems deal especially thousands miles friendly workshop International move ment type material brings forth another unexpected hazardthe Customs spector bother open model containers indoor models can damaged easily unless box opened room low air circulation Take Peek Mr Inspector Ray Harlan isnt first use idea model box well-prepared curious customs spector Photo 2 clearly shows Rays plexiglas inserts very easy show contents box opening boxs weight penalty essentially same before adding windows Two other aspects indoor box design show photocareful mount ing model parts along clever packaging first insures model parts cannot drift around inside box second ailows models carried given size box Other Problems Once models packed box made visible inspectors stand better chance getting Big Meet models intact However models cannot easily removed box contest may damaged haste fly Dan Dominas box seen Photo 3 shows way hinge box parts can reached careful study photo shows fuselage/tail group mounted under wing props under other wing main part box similar arrangement serves two models Mounting Techullques Any mounting fixture indoor model parts must meet four goals First fixture must prevent model com ponent coming out holder box transit part must rotate move around holder Otherwise part may damage nearby part rub against box damage itself Sec ond mounting should minimize transmission external shocks model parts Third fixture should designed easy smooth removal model part box sticking fixture can cause ex cessive force applied model removed box sudden release holding force may cause model strike box another model best model can removed hand Finally fix ture must crush deform model way sure fuselages tail booms will retain alignment during shipmenta very tiny warp tail boom can subtly detract performance manner expected Heres Photo 4 shows Cezar Banks solved mounting accessibility problems whole side box folds down allow easy access several parts time Slotted foam rubber pads firmly hold props hubs encasing prop hooks shock transmission minim ized blades allowed support themselves hubs cannot rotate blades can stack closely together danger foam will easily release prop needed Two wings has removed held friction-fit tubes spacing identical fuselage wings can unplugged just fuselage Two fuselages fit neatly between wings tail surfaces alternating fuselages also use foam-padded fork-type supports hold firmly crushing Props mount under wings short box lid supports two complete models small space yet allows easy access removal Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/Meuser Con finued page 35 Brookenone Co,pany 127 vose Fern Rd. Peterboroogh NH 03458 Small hand taclo misc Mfgr Buwer Model Airplane Co Toner Edward J PO Son 124 Howell NJ 07731 201 363-0845 Robber power CO scale old-taner kits plans Mfgr Cal Acm no longer active See J&R Models CHE Hobblee 10900 Eastwood Ave. Inglewood CA 90304 213 674-1756 Krts classes brands Comp Modnls Kitco d-Ks Micro Blon Ridge Tisson Prnlli robber lobn Ott CPM Prodacta 722 Lennox St. vreka CA 96097916842-4075 Old-tmer kos 30 Soaring Glider $498 ppd 30 Pacific Ace Ok P30 5695 ppd Mfgr Champion Modal Products Sebmoedner George 880 Carmen Ct LaVerne CA 91750 714 599-3348 Coupe dHiver Molcihill kits Ponlb FAI robber misc robberpower Supplies Classic Era Modelpians Oraga John 356 Grand Blvd Bedford OH 44146 Robber-powered scale models 30s 12 30 spat Stahl Lindberg Schroder Storiale $1/list sample Clam James C. see Clemeraft Clemeraft Clam James PO Ban 524 Sand Springs OK 74063 VA gas kits 0km Bird tot 79 USFF Champs Coontry Soy Witch Hawk 1st 79 Nets Cot Ill record Mfgr Cleveland Model & Supply Co. 10307 Detroit Ave. Cleveland OH 44102216 961-3600 Hundreds ot plans some old some now flyrog scale aircraft 114 Model Aviation SCALE RADIO CONTROL
Edition: Model Aviation - 1980/04
Page Numbers: 30, 31, 32, 112, 113, 114
rflOsOs sy Muss OrOWS ana t flu autfior ALTHOUGH too late see WW II combat Tigercat has called hottest powerfiul twin-engine fighter its day Its angular wing full-bodied nacelles radial engines clearly show corpulence usually associated other cats Grummans WW II family surprise Tigercats de sign its extremely narrow very graceful fuselage virtually built around pilots dimen sions giving slim almost sailplane-like look nacelles proportionally longer widely spaced twin-engine subjects course particular signifi cance selecting rubber-power scale subject since nacelle length propeller size both important items consideration Construction The first consideration design ing Tigercat lightly constructed possible sacrificing strength scale appearance selection light-weight wood major importance wood used dh possible launch twin-engined model holding prop tossing ship two hands simultaneously Dennis prefers cradlesee text retains props cradle being held hand ship other Cradle pulled free ship launched conventional manner Insert Detachable gear static purposes construction prototype model purchased Micro-X- Products P 0 Box 1063 Lorain OH 44055 numerous other sources fine quality materials cannot select wood yourself sure instruct person making selection use care selecting straight grain light wood Much Tigercat built strip stock relatively short length already have recommend make purchase balsa stripper An excellent balsa stripper may purchased approximately $1000 Jim Jones 36631 Ledgestone Mt Clemens MI 43043 Straight-grained wood strips best re-emphasizes need careful wood selection model designed eye maximum efficiency minimum ofmaterials wing stabilizer instance built up strip stock using what has called cracked rib California rib construction Basically technique involves use con ventional leading trailing edges together notched main spar strip stock attached bottom flying surface flat top formed taking strip stock top main spar leading trailing edges respectively airfoil completed adding turbulator spar tapered strip stock half way between main spar leading edge wing should built wash-out tip leading edge flat plan outboard tip trailing edge propped up approximately 3/16 gradually creases makings stabilizing warp half wing have built several wings type have performed welL Being essentially 30 Model Aviation 00500 SO WET YTNWLCN OR RENA BOTTOM ONLYI I,ROOCO NS0WT a340050 \ I FlRRrCw il[F1 SPAR _ [ JI- ____ TAFRILLOFAR 5000040 LIRONEET RAIN SPASNEON \JLlI~ I1-N\IILOOOERONI[IILZOro. USA SOSTUFWCEOTON NASA II ISO II 5 CE El NOYDSO LONINATEN TO IIB NO 400000 NODROSY rAIN STRAWS vOrOI RUUENThO AO%OOPS WINOI4INRILOROERNNSNARED YAW ANON EUOON orosNO MOE SW Fr7 FSF PENOFror SOONER ONROON OLEFY WOE 05000AINSTOLNONY- -I-- AEVEI PANEL ORE IAN NOCET1-lS0IS INNS OSEET-.I-roN STOASPAR I3z Zr INN STAN SLERORT0 CEN FIE =E= --3~ P-SP-FZSSCALE OCYLAW 705 OS LOEESEOOSF SCALA ROd ONNASONE FOR FENTON NACELLE LAOA S S 57 SCASE NErO 0% AIRCRAFT RON MOO JANE ROEFEET ROEC BEST OF WEE 0048 1505 NAN 051041573- --- V2 SCALE LOAIOSO NASA FSOAE 005040 REN OION OIEN WOES SOWONiMJ OVER DANK kAlE WIThCrunuin F7F TigerCat TWIN RUBBER POWERED AENIOSED AND DROWN BY DENNIS C NOENON PEN NY lETS collection flat surfaces wing constructed fashion particularly suited aircraft wood metal skin tissue covering allowed stretch flat eliminating peaks valleys associated covering wing built using conventional ribs technique also uses minimum material result light fuselage nacelles also designed use materials sparingly Only formers located anticipated positions stress made sheet balsa other formers laminated thinly cut strip stock Stabilizer Tradition dictates building new model start its less complicated components give builder feeling construction technique involved mind select cut length tockfairly hard stabilizers leading edge Position over plan mark rib locations notch leading edge receive 1/16 sq strip will serve stabilizers ribs Similarly stabilizers spar cut straightgrain stock 1/16 1/20 thickness trailing edge 1/16 x stab spar trailing edge notched receive 1 / 16 sq stabilizer ribs Place notched trailing leading edges directly over plan securing build ing surface straight pins tips may either laminated 1/16 X 1/64 may cut light 1/16 sheet Add 1/16 stabilizer rib bottoms Next add stabilizer spar using 1/16 square stock construct upper portions stab ribs As leading edge k upper portions stabilizers ribs may simply fitted remaining IIIIII IIII April 1980 31 Co N w 0 w w C, w -J Sel -J C, z 0 w N ci -J -J UMaximum iency obtained minimum use materials ewing employs cracea rio California rib construction Wing cross section basically two triangles base base turbulator spar top between main spar leading edge may drive airfoil purists up wall such sections have used complete success radio combat well portions notches cut stabilizers ribs cut broken stabilizer spar leading edge Similarly upper parts theso can joined trailing edge As stabilizers ribs may fit notches thethe trailing edge 1/16 thick will find sparit necessary first cut upper part stabilizer rib length equal distance stabilizer spar its trailing edge avoid bumpy trailing edge remove upper part stabilizer rib cut underside rear part acute angle has greater surface contact 1/16 sq bottom portion rib upper surface ribs now should blend smoothly trailing edge require little sanding complete air foil shape Next add stabilizers turbulator spar hard 1/20 square 1/16 sq strip stock dry round leading edge tips taper trailing edge turbulator spar Win owing basic technique described stabilizer carefully select pieces 3/32 X p stock notch places shown plan wings trailing edge leading edge constructed somewhat differ ently piece 1 / 16 sq butted against piece reater strength 1/16 portion leading edge notched receive flat bottom pieces wings ribs main spar cut 1/16 sheet notched shown plan Begin wing construction positioning securing notched leading trailing edges Next cut pieces 1/16 sq fitted appropriate notches thus joining leading trailing edges Before joining pieces permanently however place strip 3/16 thick stock outer tip trailing edge will give built wash-out greater stability glue 1/16 sq bottom portions ribs leading trailing edges Next position main spar over plan glue ittothe 1/16 sq lowerportionsofeachwing rib upper portions wing rib fashioned / 16 sq manner similar described stab upper portions ribs place glue turbulator spar place shown Finish adding tip made either 1/16 sheet stock laminated either event will necessary break wing tip goes trailing edge upper portion main spar tip goes upper portion main spar tip turbulator spar turbu lator spar down leading edge Round leading edge wing tips taper trailing edge Fuselage design seeks use minimum materials maximum effect Accordingly formers F-i F-5 F-6 cut 1/16 sheet F-8 F-9 F-12 cut 1/32 sheet sheet wood formers positions requiring strength left solid Notice former notched receive longerons stringers formers key location fuselag&s longitudinal struc tural members remaining formers shown plan laminated form supports stringers etc place requiring high structural strength fuselage fin por tion vertical stabilizer built unit keep basic fuselage shape true sug gested itbe built aug Forthe original jig simply piece nite fuselage profile drawn locations formers cut away bottom 1/16 X after having approximately 1/16 deep notches cut receive hollow formers fastened masonite jig using bits masking tape jig can placed vise nailed edge workbench Next solid formersF-1 F-5 F-6 F-8 F-9 F-12 positioned bottom keel top keel added formers glued place using small plastic triangle square keel 1/16 undersized built-up formers con structed cutting 1/64 strips 1/16 sheet Four strips joined bent around shape shown plan create hollow former Once positioned laminated pieces cemented using Zap cyanoacrylic glue hollow completed adding 1/16 sq cross braces shown plan hollow formers fitted keel structure cemented either white glue model cement due minimal surface contact Next 1 / 16 X longerons cut notched fitted place longerons fit snugly solid formers merely touch hollow formers Cyanoacrylic glue used cement longerons solid formers view minimal surface contact either white glue model airplane cement used attach hollow formers longerons Stringers added fitting notches cut solid formers gluing white glue model cement hollow formers Building fuselage fashion uppermost lowermost stringers position before fuselage frame removed masonite jig final stringers added once fuselage removed Continued page 112 32 Model Aviation rur convenience winaing two motors Inis winoing stana positions piane ana anacnes TO tfl6 two winding peg tubes aft portion nacelles Sterling 8-in plastic props turned two ioops FAI flat rubber stand fully described text rully wouna pun etteurieu iu ne erie, 10JP. arqra. unhs ofta a, wirn lightweight oesrgn pniosophy coat clear epplied Basic color typical Navy dark blue green white bands Color misted spray gun Winning Ideas FOURMOST RETRACTABLE TOW HOOK RELEASE Price $675 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight Y2 oz OTHER FOURMOST PRODUCTS 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE S250 IDEAL FOR QUICKY 500 PRICE S525Z2ZZ Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Send SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 357-2732 halftone photo merely enlarges dots really sharp photo can magnified read stenciled legends plane locate panel lines Best source photos modelers camera prototype can found Dedicated researchers travel great distances spend days photographing measuring plane Bob Dolly Wischer RL 1 S-221 Lapham Peak Roa4 Delafiel4 WI 53018 Tigercat/Norman Continued page 32 jig As indicated shape former F-i 2 vertical tail tapered thickness two hori zontal ribs fin cut scrap 1/20 1/16 sheet stock tapered width equal F-12 join down thickness fins leading edge Also contour upper fuselage immediately behind cockpit somewhat rounded sug gested area between formers F-S F-7 filled tapering pieces 1/16 sheet sanded rounded better approximate look full-size aircraft rudder move able part vertical tail built separately Nacelles Using same techniques described constructing fuselage nacelle formers longerons cut assembled masonite jig hold true being assem bled As nacelles mirror other will have flip formers shown plan make left nacelle Component AssembIy wing halves joined fuselage center such way leading edge half wing joined front former F-S main spars meet just behind former F-6 trailing edges join former F-8 will necessary deeply notch F-8 permit trailing edges pass through will also necessary remove portions fuselage stringers block passage main spar approximate dihedral angle has indicated formers F-5 F-6 will help aligning wing halves dihedral full-size aircraft substantial dihedral model approximately 1 rib Once wing halves positioned leading trailing edges main spar meet indicated two halves joined together epoxy Before wing joined fuselage check has approximately two degrees positive incidence use side longeron reference line wing joined per40 AIRFLO ENGINE MOUNT manently fuselage using epoxy scrap balsa fill gaps between wing nearby supporting fuselage formers area between root rib fuselage filled 1/3 2 sheet both strength base adhering tissue covering Similarly 1/32 X p pieces installed following shape airfoil portions fuselage adjacent wing root adds strength also provides suitable base tissue attachment nacelles joined wing position shown plan angled tops formers N-4 N-5 N-6 N-7 aligned underside wing trailing edge epoxied N-7 leading edge joined N-3 shown Once nacelle place fill area between nacelle underside wing rib nearest 1/32 sheet no need put 1/32 sheet fill top surfaces wing except portion tween N-3 turbulator spar Landing Geai- As indicated plan landing gear model optionat Flying Aces Rules permit subjects retractable gear flown wheels up thus eliminating considerable weight drag intend place model static dis play landing gear may desirable realistic base model decide build landing gear suggested make removable flying favorite technique use plug type small receptacles 1 / 16 aluminum tubing placed points main landing gear members meet fuselage nacelles landing gear components fashioned 1/32 wire pins slide aluminum tube receptacles intend use landing gear model suggested build appropriate recep tacles before proceeding covering Covering Coloring wing fuselage assembled using 1/32 sheet fill key points such wing roots etc have strengthened stress areas have provided anchor points tissue covering Almost Tigercats overall dark navy blue prototype color prototype original aircraft silver first F7 Fs tested Patuxent Maryland yellow July 1978 issue Air Classics magazine contains color photos civilian Tigercat silver red white black trim chose mark model green white bands sported Marine Corps F7 F El Toro Marine Base 1946 keeping general design philosophy suggested after shrinking tissue single coat dope applied As no rubber motor passing through fuselage have opportunity install completely detailed cockpit full pilot figure wish intention model pressures completing July 15 16 1978 Flying Aces National Meet dictated use conventional pilot bust carved styrofoam have unable find good detail F7 F cockpit interior fair amount information contained Model Airplane News book Best Nye VoL 3 Also excellent reference scale details may hadbypurchasingthe 1/72 Monogram plastic kit Propellers I used 8 Sterling plastic propellers cut 7 Static three-bladed propellers also made using 7 Sleek Streak props epoxied appropriate angles model will probably fly three-bladed props 112 Model Aviation 6 MODELS TO CHOOSE FROM OUR BEST SELLER THE CARDINAL SPORT - At Dealer snej snOlpststsa ,Sl55 O5uy atSbl5 50 bOlS5SbI It05 5 50 5P4i5Il ,j$OOa As, platis 5ttiSK5ith04df,,50Il0dOd FsOfl,SI O5OSt4 ato Intotti. Sirsto ad ta tfI 55 511dt5I COiai SOdy 51 YOSt 9t 555 COthI hO,. poshtOds t,oOlO 05 stnt sato ftt antOstrtWtO 4 tiittOtSSiflQ IttOtOt eOOtU5 on. 05 Sf545 0S50bI Ittlo 001 nO 554005 OdOSIttIs 50 i5t51155 0 5001055 000015 U. rail 5tSbilOO 00405 0050 s 51. ebsoted tea, Os a, OOse Md 5085044 50 OptS.flInadatiolAol 5 OsoljS5 4-Channel 25-40 Size 83 Wingspan 20-22 Os Loading Vey Aerobadic THE TRIPLE THREAT N QUIKRAY-500 has eneed meet need model could built last very stronj meet requirements AMA Sport Pylon Events Quicky 500 Pylon Racing Fun Fly Events around Sport Flying Trainer general Pattern Flying baby strong Bull lightandlast baby will turn Pylon tighter anything have seen will snap stall out. QUIKRAY-500 can built complete air Twelve Fifteen hours covered materials auch SUPER MONOKOTE other covering same family U M6DUWS A3AFT jOWL CO INC 500 FAST IS WHAT SHE IS DOCILE Winpapan 50 inArea 503 sq Engine 1945Weight 3l lbs Material AU Balsa Ply needed have yet try Flying Various motors have tried thus far best results obtained two 20 ioops flat rubber braided better distribute weight unwound motors rear motor pegs short lengths 1/16 aluminum tubing positioned rear nacelle As motors considerably longer distance between rear motor peg propeller hook used propeller hooks bent such way give appearance Z viewed behind such hook inhibits tendency long motor climb propeller shaft bind mechanism generally use winding stooge recommend constructed basic stooge large H-shaped structure pieces 1/16 plywood sheet portions tongue depressors attached fit either side rear motor peg nacelle Apiece 1/32 wire passed through tongues through rear motor peg holding unit stable motor wound H-shaped stooge base center crossbar between legs H nailed otherwise fastened stake driven ground possible launch model holding propeller tossing both hands once prefer use cradle consisting piece 1 X 2 pine stock two notched upright pieces attached notches uprights fit over propeller hubs keep motors unwinding leaves free hold model area F-8 F-9 right hand hold cradle left Ready launch simply pull cradle away propeller release model conventional way model built fly left under power found necessary add approximately two degrees left side- two degrees down-thrust propellers found necessary off set rudder approximately two degrees left Finished propellers motors model weighs 1 ounces balance point approximately d former F-6 model still being test flown flights date have shown remarkably stable characteristically steep rapid climb under power some difficulty stabilizer initially corrected building thicker lifting stabilizer Unfortunately time Flying Aces Nats yet appreciated nosedown effect lifting stabilizer result although model climbed well under power went steep dive altitude limiting flight time 30 seconds believe design capable minute flights changing elevator angle attack giving up elevator have countered its lifting tendencies considerably improved glide best flight time since making adjust ments has 44 seconds obtained Wright-Patterson Air Force Base Septem ber24 1978 little tinkering thermal knows.. Stolen From van Ames Department Store Athens PARed white blue Aeromaster Kraft 7ch 2-stick OS Blackhead 60 flight box 12V battery / power panel tools Kraft 5-ch receiver servos K&B 35cc RC No bler kit Excalibur kit miscellaneous planes balsa Contact Dale Lent RD 1 Box 43-C Nichols NY 13812 Tel 1-607-699-3144 Athens Police Dept Tel 1-717-885-1401 FF Indoor/Tenny Continued page 33 thermals things such thermal inversions may appear affect model performance unpredictable fashion Only really skilled fliers know use factors predictable ways What Else Well international flimsies put away First World Peanut Gran Prix will held sponsored Doc Martins Miami Indoor Airplane Model Association Peanut Scale contest will CDed directed whatever Butch Hadland UK rest week thats righta whole week will taken NIMAS Fifth NIMAS Annual Record Trials VNART VNART formula may changed somewhat year details remain worked out Anyone misses week modeling will regret CO2 Models has mentioned before column newest very tiny CO2 engines turning up indoor models Photo 1 shows very nice CO2 powered indoor scale model Stearman PT-17 Bob Sie dentopf Hammond IN model flown annual Midwest Indoor Cham pionships held Chicago IL Although door purists doubtless will very nervous over intrusion CO2 models airspace technology very interesting type flying Model Boxes mention World Cham pionship brings forth thoughts model transportation problems Everyone has April1980 113 [I LIGHT AND QUIK ITS FULL OF TIGER EATING GRINS!! AAmco Inc humbly say no WHEELS CONTROL-UNEFREE-FLIGHT VINTAGESMOOTHGOLDEN AGENEW sizes21/iCONTOURsizes2/zBALLOON 3/i3/34234 3/g 13341314 13342/41/2 11443/i1143W11/44/a31/454 11/2511/241/211/2533/4 1/6S/82145141/g61/i SCALE PILOTS DERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS JjLLIAMS SEND 5Ott FOR COMPLETE ILLUSTRATED CATALOG EROS IHZs. DEPT MA PAWNEE ST SAN MARCOS CA 9 HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS CHECK THESE FEATURES twist its locked 2Push twst Its f 3Will come f under heavy engine vibration 4Will short out sPositive spring contact 630 inch lead wire Still atyoirr hobhy p295 dealers & 1 gIF INJITFfl ever associated WCh no matter what type model involved has heard hor ror stories hero stories depending upon viewpoint team members arriving models tatters Sometimes stories funny retrospect however models successfully repaired team member involved has started handicap difficult overcome Whats Needed Obviously desirable endresult effort transport model airplanes around world arrive contest models totally undamaged major hazards shock dropped con tainers vibration various kinds vehicular activity Indoor models aiso sen sitive temperature extremes especially heat Woe unto unwary locks indoor models rented car standing out sum mer sun Such elevated temperatures will warp models quickly very hardest types problems deal especially thousands miles friendly workshop International move ment type material brings forth another unexpected hazardthe Customs spector bother open model containers indoor models can damaged easily unless box opened room low air circulation Take Peek Mr Inspector Ray Harlan isnt first use idea model box well-prepared curious customs spector Photo 2 clearly shows Rays plexiglas inserts very easy show contents box opening boxs weight penalty essentially same before adding windows Two other aspects indoor box design show photocareful mount ing model parts along clever packaging first insures model parts cannot drift around inside box second ailows models carried given size box Other Problems Once models packed box made visible inspectors stand better chance getting Big Meet models intact However models cannot easily removed box contest may damaged haste fly Dan Dominas box seen Photo 3 shows way hinge box parts can reached careful study photo shows fuselage/tail group mounted under wing props under other wing main part box similar arrangement serves two models Mounting Techullques Any mounting fixture indoor model parts must meet four goals First fixture must prevent model com ponent coming out holder box transit part must rotate move around holder Otherwise part may damage nearby part rub against box damage itself Sec ond mounting should minimize transmission external shocks model parts Third fixture should designed easy smooth removal model part box sticking fixture can cause ex cessive force applied model removed box sudden release holding force may cause model strike box another model best model can removed hand Finally fix ture must crush deform model way sure fuselages tail booms will retain alignment during shipmenta very tiny warp tail boom can subtly detract performance manner expected Heres Photo 4 shows Cezar Banks solved mounting accessibility problems whole side box folds down allow easy access several parts time Slotted foam rubber pads firmly hold props hubs encasing prop hooks shock transmission minim ized blades allowed support themselves hubs cannot rotate blades can stack closely together danger foam will easily release prop needed Two wings has removed held friction-fit tubes spacing identical fuselage wings can unplugged just fuselage Two fuselages fit neatly between wings tail surfaces alternating fuselages also use foam-padded fork-type supports hold firmly crushing Props mount under wings short box lid supports two complete models small space yet allows easy access removal Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/Meuser Con finued page 35 Brookenone Co,pany 127 vose Fern Rd. Peterboroogh NH 03458 Small hand taclo misc Mfgr Buwer Model Airplane Co Toner Edward J PO Son 124 Howell NJ 07731 201 363-0845 Robber power CO scale old-taner kits plans Mfgr Cal Acm no longer active See J&R Models CHE Hobblee 10900 Eastwood Ave. Inglewood CA 90304 213 674-1756 Krts classes brands Comp Modnls Kitco d-Ks Micro Blon Ridge Tisson Prnlli robber lobn Ott CPM Prodacta 722 Lennox St. vreka CA 96097916842-4075 Old-tmer kos 30 Soaring Glider $498 ppd 30 Pacific Ace Ok P30 5695 ppd Mfgr Champion Modal Products Sebmoedner George 880 Carmen Ct LaVerne CA 91750 714 599-3348 Coupe dHiver Molcihill kits Ponlb FAI robber misc robberpower Supplies Classic Era Modelpians Oraga John 356 Grand Blvd Bedford OH 44146 Robber-powered scale models 30s 12 30 spat Stahl Lindberg Schroder Storiale $1/list sample Clam James C. see Clemeraft Clemeraft Clam James PO Ban 524 Sand Springs OK 74063 VA gas kits 0km Bird tot 79 USFF Champs Coontry Soy Witch Hawk 1st 79 Nets Cot Ill record Mfgr Cleveland Model & Supply Co. 10307 Detroit Ave. Cleveland OH 44102216 961-3600 Hundreds ot plans some old some now flyrog scale aircraft 114 Model Aviation SCALE RADIO CONTROL
Edition: Model Aviation - 1980/04
Page Numbers: 30, 31, 32, 112, 113, 114
rflOsOs sy Muss OrOWS ana t flu autfior ALTHOUGH too late see WW II combat Tigercat has called hottest powerfiul twin-engine fighter its day Its angular wing full-bodied nacelles radial engines clearly show corpulence usually associated other cats Grummans WW II family surprise Tigercats de sign its extremely narrow very graceful fuselage virtually built around pilots dimen sions giving slim almost sailplane-like look nacelles proportionally longer widely spaced twin-engine subjects course particular signifi cance selecting rubber-power scale subject since nacelle length propeller size both important items consideration Construction The first consideration design ing Tigercat lightly constructed possible sacrificing strength scale appearance selection light-weight wood major importance wood used dh possible launch twin-engined model holding prop tossing ship two hands simultaneously Dennis prefers cradlesee text retains props cradle being held hand ship other Cradle pulled free ship launched conventional manner Insert Detachable gear static purposes construction prototype model purchased Micro-X- Products P 0 Box 1063 Lorain OH 44055 numerous other sources fine quality materials cannot select wood yourself sure instruct person making selection use care selecting straight grain light wood Much Tigercat built strip stock relatively short length already have recommend make purchase balsa stripper An excellent balsa stripper may purchased approximately $1000 Jim Jones 36631 Ledgestone Mt Clemens MI 43043 Straight-grained wood strips best re-emphasizes need careful wood selection model designed eye maximum efficiency minimum ofmaterials wing stabilizer instance built up strip stock using what has called cracked rib California rib construction Basically technique involves use con ventional leading trailing edges together notched main spar strip stock attached bottom flying surface flat top formed taking strip stock top main spar leading trailing edges respectively airfoil completed adding turbulator spar tapered strip stock half way between main spar leading edge wing should built wash-out tip leading edge flat plan outboard tip trailing edge propped up approximately 3/16 gradually creases makings stabilizing warp half wing have built several wings type have performed welL Being essentially 30 Model Aviation 00500 SO WET YTNWLCN OR RENA BOTTOM ONLYI I,ROOCO NS0WT a340050 \ I FlRRrCw il[F1 SPAR _ [ JI- ____ TAFRILLOFAR 5000040 LIRONEET RAIN SPASNEON \JLlI~ I1-N\IILOOOERONI[IILZOro. USA SOSTUFWCEOTON NASA II ISO II 5 CE El NOYDSO LONINATEN TO IIB NO 400000 NODROSY rAIN STRAWS vOrOI RUUENThO AO%OOPS WINOI4INRILOROERNNSNARED YAW ANON EUOON orosNO MOE SW Fr7 FSF PENOFror SOONER ONROON OLEFY WOE 05000AINSTOLNONY- -I-- AEVEI PANEL ORE IAN NOCET1-lS0IS INNS OSEET-.I-roN STOASPAR I3z Zr INN STAN SLERORT0 CEN FIE =E= --3~ P-SP-FZSSCALE OCYLAW 705 OS LOEESEOOSF SCALA ROd ONNASONE FOR FENTON NACELLE LAOA S S 57 SCASE NErO 0% AIRCRAFT RON MOO JANE ROEFEET ROEC BEST OF WEE 0048 1505 NAN 051041573- --- V2 SCALE LOAIOSO NASA FSOAE 005040 REN OION OIEN WOES SOWONiMJ OVER DANK kAlE WIThCrunuin F7F TigerCat TWIN RUBBER POWERED AENIOSED AND DROWN BY DENNIS C NOENON PEN NY lETS collection flat surfaces wing constructed fashion particularly suited aircraft wood metal skin tissue covering allowed stretch flat eliminating peaks valleys associated covering wing built using conventional ribs technique also uses minimum material result light fuselage nacelles also designed use materials sparingly Only formers located anticipated positions stress made sheet balsa other formers laminated thinly cut strip stock Stabilizer Tradition dictates building new model start its less complicated components give builder feeling construction technique involved mind select cut length tockfairly hard stabilizers leading edge Position over plan mark rib locations notch leading edge receive 1/16 sq strip will serve stabilizers ribs Similarly stabilizers spar cut straightgrain stock 1/16 1/20 thickness trailing edge 1/16 x stab spar trailing edge notched receive 1 / 16 sq stabilizer ribs Place notched trailing leading edges directly over plan securing build ing surface straight pins tips may either laminated 1/16 X 1/64 may cut light 1/16 sheet Add 1/16 stabilizer rib bottoms Next add stabilizer spar using 1/16 square stock construct upper portions stab ribs As leading edge k upper portions stabilizers ribs may simply fitted remaining IIIIII IIII April 1980 31 Co N w 0 w w C, w -J Sel -J C, z 0 w N ci -J -J UMaximum iency obtained minimum use materials ewing employs cracea rio California rib construction Wing cross section basically two triangles base base turbulator spar top between main spar leading edge may drive airfoil purists up wall such sections have used complete success radio combat well portions notches cut stabilizers ribs cut broken stabilizer spar leading edge Similarly upper parts theso can joined trailing edge As stabilizers ribs may fit notches thethe trailing edge 1/16 thick will find sparit necessary first cut upper part stabilizer rib length equal distance stabilizer spar its trailing edge avoid bumpy trailing edge remove upper part stabilizer rib cut underside rear part acute angle has greater surface contact 1/16 sq bottom portion rib upper surface ribs now should blend smoothly trailing edge require little sanding complete air foil shape Next add stabilizers turbulator spar hard 1/20 square 1/16 sq strip stock dry round leading edge tips taper trailing edge turbulator spar Win owing basic technique described stabilizer carefully select pieces 3/32 X p stock notch places shown plan wings trailing edge leading edge constructed somewhat differ ently piece 1 / 16 sq butted against piece reater strength 1/16 portion leading edge notched receive flat bottom pieces wings ribs main spar cut 1/16 sheet notched shown plan Begin wing construction positioning securing notched leading trailing edges Next cut pieces 1/16 sq fitted appropriate notches thus joining leading trailing edges Before joining pieces permanently however place strip 3/16 thick stock outer tip trailing edge will give built wash-out greater stability glue 1/16 sq bottom portions ribs leading trailing edges Next position main spar over plan glue ittothe 1/16 sq lowerportionsofeachwing rib upper portions wing rib fashioned / 16 sq manner similar described stab upper portions ribs place glue turbulator spar place shown Finish adding tip made either 1/16 sheet stock laminated either event will necessary break wing tip goes trailing edge upper portion main spar tip goes upper portion main spar tip turbulator spar turbu lator spar down leading edge Round leading edge wing tips taper trailing edge Fuselage design seeks use minimum materials maximum effect Accordingly formers F-i F-5 F-6 cut 1/16 sheet F-8 F-9 F-12 cut 1/32 sheet sheet wood formers positions requiring strength left solid Notice former notched receive longerons stringers formers key location fuselag&s longitudinal struc tural members remaining formers shown plan laminated form supports stringers etc place requiring high structural strength fuselage fin por tion vertical stabilizer built unit keep basic fuselage shape true sug gested itbe built aug Forthe original jig simply piece nite fuselage profile drawn locations formers cut away bottom 1/16 X after having approximately 1/16 deep notches cut receive hollow formers fastened masonite jig using bits masking tape jig can placed vise nailed edge workbench Next solid formersF-1 F-5 F-6 F-8 F-9 F-12 positioned bottom keel top keel added formers glued place using small plastic triangle square keel 1/16 undersized built-up formers con structed cutting 1/64 strips 1/16 sheet Four strips joined bent around shape shown plan create hollow former Once positioned laminated pieces cemented using Zap cyanoacrylic glue hollow completed adding 1/16 sq cross braces shown plan hollow formers fitted keel structure cemented either white glue model cement due minimal surface contact Next 1 / 16 X longerons cut notched fitted place longerons fit snugly solid formers merely touch hollow formers Cyanoacrylic glue used cement longerons solid formers view minimal surface contact either white glue model airplane cement used attach hollow formers longerons Stringers added fitting notches cut solid formers gluing white glue model cement hollow formers Building fuselage fashion uppermost lowermost stringers position before fuselage frame removed masonite jig final stringers added once fuselage removed Continued page 112 32 Model Aviation rur convenience winaing two motors Inis winoing stana positions piane ana anacnes TO tfl6 two winding peg tubes aft portion nacelles Sterling 8-in plastic props turned two ioops FAI flat rubber stand fully described text rully wouna pun etteurieu iu ne erie, 10JP. arqra. unhs ofta a, wirn lightweight oesrgn pniosophy coat clear epplied Basic color typical Navy dark blue green white bands Color misted spray gun Winning Ideas FOURMOST RETRACTABLE TOW HOOK RELEASE Price $675 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight Y2 oz OTHER FOURMOST PRODUCTS 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE S250 IDEAL FOR QUICKY 500 PRICE S525Z2ZZ Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Send SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 357-2732 halftone photo merely enlarges dots really sharp photo can magnified read stenciled legends plane locate panel lines Best source photos modelers camera prototype can found Dedicated researchers travel great distances spend days photographing measuring plane Bob Dolly Wischer RL 1 S-221 Lapham Peak Roa4 Delafiel4 WI 53018 Tigercat/Norman Continued page 32 jig As indicated shape former F-i 2 vertical tail tapered thickness two hori zontal ribs fin cut scrap 1/20 1/16 sheet stock tapered width equal F-12 join down thickness fins leading edge Also contour upper fuselage immediately behind cockpit somewhat rounded sug gested area between formers F-S F-7 filled tapering pieces 1/16 sheet sanded rounded better approximate look full-size aircraft rudder move able part vertical tail built separately Nacelles Using same techniques described constructing fuselage nacelle formers longerons cut assembled masonite jig hold true being assem bled As nacelles mirror other will have flip formers shown plan make left nacelle Component AssembIy wing halves joined fuselage center such way leading edge half wing joined front former F-S main spars meet just behind former F-6 trailing edges join former F-8 will necessary deeply notch F-8 permit trailing edges pass through will also necessary remove portions fuselage stringers block passage main spar approximate dihedral angle has indicated formers F-5 F-6 will help aligning wing halves dihedral full-size aircraft substantial dihedral model approximately 1 rib Once wing halves positioned leading trailing edges main spar meet indicated two halves joined together epoxy Before wing joined fuselage check has approximately two degrees positive incidence use side longeron reference line wing joined per40 AIRFLO ENGINE MOUNT manently fuselage using epoxy scrap balsa fill gaps between wing nearby supporting fuselage formers area between root rib fuselage filled 1/3 2 sheet both strength base adhering tissue covering Similarly 1/32 X p pieces installed following shape airfoil portions fuselage adjacent wing root adds strength also provides suitable base tissue attachment nacelles joined wing position shown plan angled tops formers N-4 N-5 N-6 N-7 aligned underside wing trailing edge epoxied N-7 leading edge joined N-3 shown Once nacelle place fill area between nacelle underside wing rib nearest 1/32 sheet no need put 1/32 sheet fill top surfaces wing except portion tween N-3 turbulator spar Landing Geai- As indicated plan landing gear model optionat Flying Aces Rules permit subjects retractable gear flown wheels up thus eliminating considerable weight drag intend place model static dis play landing gear may desirable realistic base model decide build landing gear suggested make removable flying favorite technique use plug type small receptacles 1 / 16 aluminum tubing placed points main landing gear members meet fuselage nacelles landing gear components fashioned 1/32 wire pins slide aluminum tube receptacles intend use landing gear model suggested build appropriate recep tacles before proceeding covering Covering Coloring wing fuselage assembled using 1/32 sheet fill key points such wing roots etc have strengthened stress areas have provided anchor points tissue covering Almost Tigercats overall dark navy blue prototype color prototype original aircraft silver first F7 Fs tested Patuxent Maryland yellow July 1978 issue Air Classics magazine contains color photos civilian Tigercat silver red white black trim chose mark model green white bands sported Marine Corps F7 F El Toro Marine Base 1946 keeping general design philosophy suggested after shrinking tissue single coat dope applied As no rubber motor passing through fuselage have opportunity install completely detailed cockpit full pilot figure wish intention model pressures completing July 15 16 1978 Flying Aces National Meet dictated use conventional pilot bust carved styrofoam have unable find good detail F7 F cockpit interior fair amount information contained Model Airplane News book Best Nye VoL 3 Also excellent reference scale details may hadbypurchasingthe 1/72 Monogram plastic kit Propellers I used 8 Sterling plastic propellers cut 7 Static three-bladed propellers also made using 7 Sleek Streak props epoxied appropriate angles model will probably fly three-bladed props 112 Model Aviation 6 MODELS TO CHOOSE FROM OUR BEST SELLER THE CARDINAL SPORT - At Dealer snej snOlpststsa ,Sl55 O5uy atSbl5 50 bOlS5SbI It05 5 50 5P4i5Il ,j$OOa As, platis 5ttiSK5ith04df,,50Il0dOd FsOfl,SI O5OSt4 ato Intotti. Sirsto ad ta tfI 55 511dt5I COiai SOdy 51 YOSt 9t 555 COthI hO,. poshtOds t,oOlO 05 stnt sato ftt antOstrtWtO 4 tiittOtSSiflQ IttOtOt eOOtU5 on. 05 Sf545 0S50bI Ittlo 001 nO 554005 OdOSIttIs 50 i5t51155 0 5001055 000015 U. rail 5tSbilOO 00405 0050 s 51. ebsoted tea, Os a, OOse Md 5085044 50 OptS.flInadatiolAol 5 OsoljS5 4-Channel 25-40 Size 83 Wingspan 20-22 Os Loading Vey Aerobadic THE TRIPLE THREAT N QUIKRAY-500 has eneed meet need model could built last very stronj meet requirements AMA Sport Pylon Events Quicky 500 Pylon Racing Fun Fly Events around Sport Flying Trainer general Pattern Flying baby strong Bull lightandlast baby will turn Pylon tighter anything have seen will snap stall out. QUIKRAY-500 can built complete air Twelve Fifteen hours covered materials auch SUPER MONOKOTE other covering same family U M6DUWS A3AFT jOWL CO INC 500 FAST IS WHAT SHE IS DOCILE Winpapan 50 inArea 503 sq Engine 1945Weight 3l lbs Material AU Balsa Ply needed have yet try Flying Various motors have tried thus far best results obtained two 20 ioops flat rubber braided better distribute weight unwound motors rear motor pegs short lengths 1/16 aluminum tubing positioned rear nacelle As motors considerably longer distance between rear motor peg propeller hook used propeller hooks bent such way give appearance Z viewed behind such hook inhibits tendency long motor climb propeller shaft bind mechanism generally use winding stooge recommend constructed basic stooge large H-shaped structure pieces 1/16 plywood sheet portions tongue depressors attached fit either side rear motor peg nacelle Apiece 1/32 wire passed through tongues through rear motor peg holding unit stable motor wound H-shaped stooge base center crossbar between legs H nailed otherwise fastened stake driven ground possible launch model holding propeller tossing both hands once prefer use cradle consisting piece 1 X 2 pine stock two notched upright pieces attached notches uprights fit over propeller hubs keep motors unwinding leaves free hold model area F-8 F-9 right hand hold cradle left Ready launch simply pull cradle away propeller release model conventional way model built fly left under power found necessary add approximately two degrees left side- two degrees down-thrust propellers found necessary off set rudder approximately two degrees left Finished propellers motors model weighs 1 ounces balance point approximately d former F-6 model still being test flown flights date have shown remarkably stable characteristically steep rapid climb under power some difficulty stabilizer initially corrected building thicker lifting stabilizer Unfortunately time Flying Aces Nats yet appreciated nosedown effect lifting stabilizer result although model climbed well under power went steep dive altitude limiting flight time 30 seconds believe design capable minute flights changing elevator angle attack giving up elevator have countered its lifting tendencies considerably improved glide best flight time since making adjust ments has 44 seconds obtained Wright-Patterson Air Force Base Septem ber24 1978 little tinkering thermal knows.. Stolen From van Ames Department Store Athens PARed white blue Aeromaster Kraft 7ch 2-stick OS Blackhead 60 flight box 12V battery / power panel tools Kraft 5-ch receiver servos K&B 35cc RC No bler kit Excalibur kit miscellaneous planes balsa Contact Dale Lent RD 1 Box 43-C Nichols NY 13812 Tel 1-607-699-3144 Athens Police Dept Tel 1-717-885-1401 FF Indoor/Tenny Continued page 33 thermals things such thermal inversions may appear affect model performance unpredictable fashion Only really skilled fliers know use factors predictable ways What Else Well international flimsies put away First World Peanut Gran Prix will held sponsored Doc Martins Miami Indoor Airplane Model Association Peanut Scale contest will CDed directed whatever Butch Hadland UK rest week thats righta whole week will taken NIMAS Fifth NIMAS Annual Record Trials VNART VNART formula may changed somewhat year details remain worked out Anyone misses week modeling will regret CO2 Models has mentioned before column newest very tiny CO2 engines turning up indoor models Photo 1 shows very nice CO2 powered indoor scale model Stearman PT-17 Bob Sie dentopf Hammond IN model flown annual Midwest Indoor Cham pionships held Chicago IL Although door purists doubtless will very nervous over intrusion CO2 models airspace technology very interesting type flying Model Boxes mention World Cham pionship brings forth thoughts model transportation problems Everyone has April1980 113 [I LIGHT AND QUIK ITS FULL OF TIGER EATING GRINS!! AAmco Inc humbly say no WHEELS CONTROL-UNEFREE-FLIGHT VINTAGESMOOTHGOLDEN AGENEW sizes21/iCONTOURsizes2/zBALLOON 3/i3/34234 3/g 13341314 13342/41/2 11443/i1143W11/44/a31/454 11/2511/241/211/2533/4 1/6S/82145141/g61/i SCALE PILOTS DERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS JjLLIAMS SEND 5Ott FOR COMPLETE ILLUSTRATED CATALOG EROS IHZs. DEPT MA PAWNEE ST SAN MARCOS CA 9 HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS CHECK THESE FEATURES twist its locked 2Push twst Its f 3Will come f under heavy engine vibration 4Will short out sPositive spring contact 630 inch lead wire Still atyoirr hobhy p295 dealers & 1 gIF INJITFfl ever associated WCh no matter what type model involved has heard hor ror stories hero stories depending upon viewpoint team members arriving models tatters Sometimes stories funny retrospect however models successfully repaired team member involved has started handicap difficult overcome Whats Needed Obviously desirable endresult effort transport model airplanes around world arrive contest models totally undamaged major hazards shock dropped con tainers vibration various kinds vehicular activity Indoor models aiso sen sitive temperature extremes especially heat Woe unto unwary locks indoor models rented car standing out sum mer sun Such elevated temperatures will warp models quickly very hardest types problems deal especially thousands miles friendly workshop International move ment type material brings forth another unexpected hazardthe Customs spector bother open model containers indoor models can damaged easily unless box opened room low air circulation Take Peek Mr Inspector Ray Harlan isnt first use idea model box well-prepared curious customs spector Photo 2 clearly shows Rays plexiglas inserts very easy show contents box opening boxs weight penalty essentially same before adding windows Two other aspects indoor box design show photocareful mount ing model parts along clever packaging first insures model parts cannot drift around inside box second ailows models carried given size box Other Problems Once models packed box made visible inspectors stand better chance getting Big Meet models intact However models cannot easily removed box contest may damaged haste fly Dan Dominas box seen Photo 3 shows way hinge box parts can reached careful study photo shows fuselage/tail group mounted under wing props under other wing main part box similar arrangement serves two models Mounting Techullques Any mounting fixture indoor model parts must meet four goals First fixture must prevent model com ponent coming out holder box transit part must rotate move around holder Otherwise part may damage nearby part rub against box damage itself Sec ond mounting should minimize transmission external shocks model parts Third fixture should designed easy smooth removal model part box sticking fixture can cause ex cessive force applied model removed box sudden release holding force may cause model strike box another model best model can removed hand Finally fix ture must crush deform model way sure fuselages tail booms will retain alignment during shipmenta very tiny warp tail boom can subtly detract performance manner expected Heres Photo 4 shows Cezar Banks solved mounting accessibility problems whole side box folds down allow easy access several parts time Slotted foam rubber pads firmly hold props hubs encasing prop hooks shock transmission minim ized blades allowed support themselves hubs cannot rotate blades can stack closely together danger foam will easily release prop needed Two wings has removed held friction-fit tubes spacing identical fuselage wings can unplugged just fuselage Two fuselages fit neatly between wings tail surfaces alternating fuselages also use foam-padded fork-type supports hold firmly crushing Props mount under wings short box lid supports two complete models small space yet allows easy access removal Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/Meuser Con finued page 35 Brookenone Co,pany 127 vose Fern Rd. Peterboroogh NH 03458 Small hand taclo misc Mfgr Buwer Model Airplane Co Toner Edward J PO Son 124 Howell NJ 07731 201 363-0845 Robber power CO scale old-taner kits plans Mfgr Cal Acm no longer active See J&R Models CHE Hobblee 10900 Eastwood Ave. Inglewood CA 90304 213 674-1756 Krts classes brands Comp Modnls Kitco d-Ks Micro Blon Ridge Tisson Prnlli robber lobn Ott CPM Prodacta 722 Lennox St. vreka CA 96097916842-4075 Old-tmer kos 30 Soaring Glider $498 ppd 30 Pacific Ace Ok P30 5695 ppd Mfgr Champion Modal Products Sebmoedner George 880 Carmen Ct LaVerne CA 91750 714 599-3348 Coupe dHiver Molcihill kits Ponlb FAI robber misc robberpower Supplies Classic Era Modelpians Oraga John 356 Grand Blvd Bedford OH 44146 Robber-powered scale models 30s 12 30 spat Stahl Lindberg Schroder Storiale $1/list sample Clam James C. see Clemeraft Clemeraft Clam James PO Ban 524 Sand Springs OK 74063 VA gas kits 0km Bird tot 79 USFF Champs Coontry Soy Witch Hawk 1st 79 Nets Cot Ill record Mfgr Cleveland Model & Supply Co. 10307 Detroit Ave. Cleveland OH 44102216 961-3600 Hundreds ot plans some old some now flyrog scale aircraft 114 Model Aviation SCALE RADIO CONTROL
Edition: Model Aviation - 1980/04
Page Numbers: 30, 31, 32, 112, 113, 114
rflOsOs sy Muss OrOWS ana t flu autfior ALTHOUGH too late see WW II combat Tigercat has called hottest powerfiul twin-engine fighter its day Its angular wing full-bodied nacelles radial engines clearly show corpulence usually associated other cats Grummans WW II family surprise Tigercats de sign its extremely narrow very graceful fuselage virtually built around pilots dimen sions giving slim almost sailplane-like look nacelles proportionally longer widely spaced twin-engine subjects course particular signifi cance selecting rubber-power scale subject since nacelle length propeller size both important items consideration Construction The first consideration design ing Tigercat lightly constructed possible sacrificing strength scale appearance selection light-weight wood major importance wood used dh possible launch twin-engined model holding prop tossing ship two hands simultaneously Dennis prefers cradlesee text retains props cradle being held hand ship other Cradle pulled free ship launched conventional manner Insert Detachable gear static purposes construction prototype model purchased Micro-X- Products P 0 Box 1063 Lorain OH 44055 numerous other sources fine quality materials cannot select wood yourself sure instruct person making selection use care selecting straight grain light wood Much Tigercat built strip stock relatively short length already have recommend make purchase balsa stripper An excellent balsa stripper may purchased approximately $1000 Jim Jones 36631 Ledgestone Mt Clemens MI 43043 Straight-grained wood strips best re-emphasizes need careful wood selection model designed eye maximum efficiency minimum ofmaterials wing stabilizer instance built up strip stock using what has called cracked rib California rib construction Basically technique involves use con ventional leading trailing edges together notched main spar strip stock attached bottom flying surface flat top formed taking strip stock top main spar leading trailing edges respectively airfoil completed adding turbulator spar tapered strip stock half way between main spar leading edge wing should built wash-out tip leading edge flat plan outboard tip trailing edge propped up approximately 3/16 gradually creases makings stabilizing warp half wing have built several wings type have performed welL Being essentially 30 Model Aviation 00500 SO WET YTNWLCN OR RENA BOTTOM ONLYI I,ROOCO NS0WT a340050 \ I FlRRrCw il[F1 SPAR _ [ JI- ____ TAFRILLOFAR 5000040 LIRONEET RAIN SPASNEON \JLlI~ I1-N\IILOOOERONI[IILZOro. USA SOSTUFWCEOTON NASA II ISO II 5 CE El NOYDSO LONINATEN TO IIB NO 400000 NODROSY rAIN STRAWS vOrOI RUUENThO AO%OOPS WINOI4INRILOROERNNSNARED YAW ANON EUOON orosNO MOE SW Fr7 FSF PENOFror SOONER ONROON OLEFY WOE 05000AINSTOLNONY- -I-- AEVEI PANEL ORE IAN NOCET1-lS0IS INNS OSEET-.I-roN STOASPAR I3z Zr INN STAN SLERORT0 CEN FIE =E= --3~ P-SP-FZSSCALE OCYLAW 705 OS LOEESEOOSF SCALA ROd ONNASONE FOR FENTON NACELLE LAOA S S 57 SCASE NErO 0% AIRCRAFT RON MOO JANE ROEFEET ROEC BEST OF WEE 0048 1505 NAN 051041573- --- V2 SCALE LOAIOSO NASA FSOAE 005040 REN OION OIEN WOES SOWONiMJ OVER DANK kAlE WIThCrunuin F7F TigerCat TWIN RUBBER POWERED AENIOSED AND DROWN BY DENNIS C NOENON PEN NY lETS collection flat surfaces wing constructed fashion particularly suited aircraft wood metal skin tissue covering allowed stretch flat eliminating peaks valleys associated covering wing built using conventional ribs technique also uses minimum material result light fuselage nacelles also designed use materials sparingly Only formers located anticipated positions stress made sheet balsa other formers laminated thinly cut strip stock Stabilizer Tradition dictates building new model start its less complicated components give builder feeling construction technique involved mind select cut length tockfairly hard stabilizers leading edge Position over plan mark rib locations notch leading edge receive 1/16 sq strip will serve stabilizers ribs Similarly stabilizers spar cut straightgrain stock 1/16 1/20 thickness trailing edge 1/16 x stab spar trailing edge notched receive 1 / 16 sq stabilizer ribs Place notched trailing leading edges directly over plan securing build ing surface straight pins tips may either laminated 1/16 X 1/64 may cut light 1/16 sheet Add 1/16 stabilizer rib bottoms Next add stabilizer spar using 1/16 square stock construct upper portions stab ribs As leading edge k upper portions stabilizers ribs may simply fitted remaining IIIIII IIII April 1980 31 Co N w 0 w w C, w -J Sel -J C, z 0 w N ci -J -J UMaximum iency obtained minimum use materials ewing employs cracea rio California rib construction Wing cross section basically two triangles base base turbulator spar top between main spar leading edge may drive airfoil purists up wall such sections have used complete success radio combat well portions notches cut stabilizers ribs cut broken stabilizer spar leading edge Similarly upper parts theso can joined trailing edge As stabilizers ribs may fit notches thethe trailing edge 1/16 thick will find sparit necessary first cut upper part stabilizer rib length equal distance stabilizer spar its trailing edge avoid bumpy trailing edge remove upper part stabilizer rib cut underside rear part acute angle has greater surface contact 1/16 sq bottom portion rib upper surface ribs now should blend smoothly trailing edge require little sanding complete air foil shape Next add stabilizers turbulator spar hard 1/20 square 1/16 sq strip stock dry round leading edge tips taper trailing edge turbulator spar Win owing basic technique described stabilizer carefully select pieces 3/32 X p stock notch places shown plan wings trailing edge leading edge constructed somewhat differ ently piece 1 / 16 sq butted against piece reater strength 1/16 portion leading edge notched receive flat bottom pieces wings ribs main spar cut 1/16 sheet notched shown plan Begin wing construction positioning securing notched leading trailing edges Next cut pieces 1/16 sq fitted appropriate notches thus joining leading trailing edges Before joining pieces permanently however place strip 3/16 thick stock outer tip trailing edge will give built wash-out greater stability glue 1/16 sq bottom portions ribs leading trailing edges Next position main spar over plan glue ittothe 1/16 sq lowerportionsofeachwing rib upper portions wing rib fashioned / 16 sq manner similar described stab upper portions ribs place glue turbulator spar place shown Finish adding tip made either 1/16 sheet stock laminated either event will necessary break wing tip goes trailing edge upper portion main spar tip goes upper portion main spar tip turbulator spar turbu lator spar down leading edge Round leading edge wing tips taper trailing edge Fuselage design seeks use minimum materials maximum effect Accordingly formers F-i F-5 F-6 cut 1/16 sheet F-8 F-9 F-12 cut 1/32 sheet sheet wood formers positions requiring strength left solid Notice former notched receive longerons stringers formers key location fuselag&s longitudinal struc tural members remaining formers shown plan laminated form supports stringers etc place requiring high structural strength fuselage fin por tion vertical stabilizer built unit keep basic fuselage shape true sug gested itbe built aug Forthe original jig simply piece nite fuselage profile drawn locations formers cut away bottom 1/16 X after having approximately 1/16 deep notches cut receive hollow formers fastened masonite jig using bits masking tape jig can placed vise nailed edge workbench Next solid formersF-1 F-5 F-6 F-8 F-9 F-12 positioned bottom keel top keel added formers glued place using small plastic triangle square keel 1/16 undersized built-up formers con structed cutting 1/64 strips 1/16 sheet Four strips joined bent around shape shown plan create hollow former Once positioned laminated pieces cemented using Zap cyanoacrylic glue hollow completed adding 1/16 sq cross braces shown plan hollow formers fitted keel structure cemented either white glue model cement due minimal surface contact Next 1 / 16 X longerons cut notched fitted place longerons fit snugly solid formers merely touch hollow formers Cyanoacrylic glue used cement longerons solid formers view minimal surface contact either white glue model airplane cement used attach hollow formers longerons Stringers added fitting notches cut solid formers gluing white glue model cement hollow formers Building fuselage fashion uppermost lowermost stringers position before fuselage frame removed masonite jig final stringers added once fuselage removed Continued page 112 32 Model Aviation rur convenience winaing two motors Inis winoing stana positions piane ana anacnes TO tfl6 two winding peg tubes aft portion nacelles Sterling 8-in plastic props turned two ioops FAI flat rubber stand fully described text rully wouna pun etteurieu iu ne erie, 10JP. arqra. unhs ofta a, wirn lightweight oesrgn pniosophy coat clear epplied Basic color typical Navy dark blue green white bands Color misted spray gun Winning Ideas FOURMOST RETRACTABLE TOW HOOK RELEASE Price $675 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight Y2 oz OTHER FOURMOST PRODUCTS 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE S250 IDEAL FOR QUICKY 500 PRICE S525Z2ZZ Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Send SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 357-2732 halftone photo merely enlarges dots really sharp photo can magnified read stenciled legends plane locate panel lines Best source photos modelers camera prototype can found Dedicated researchers travel great distances spend days photographing measuring plane Bob Dolly Wischer RL 1 S-221 Lapham Peak Roa4 Delafiel4 WI 53018 Tigercat/Norman Continued page 32 jig As indicated shape former F-i 2 vertical tail tapered thickness two hori zontal ribs fin cut scrap 1/20 1/16 sheet stock tapered width equal F-12 join down thickness fins leading edge Also contour upper fuselage immediately behind cockpit somewhat rounded sug gested area between formers F-S F-7 filled tapering pieces 1/16 sheet sanded rounded better approximate look full-size aircraft rudder move able part vertical tail built separately Nacelles Using same techniques described constructing fuselage nacelle formers longerons cut assembled masonite jig hold true being assem bled As nacelles mirror other will have flip formers shown plan make left nacelle Component AssembIy wing halves joined fuselage center such way leading edge half wing joined front former F-S main spars meet just behind former F-6 trailing edges join former F-8 will necessary deeply notch F-8 permit trailing edges pass through will also necessary remove portions fuselage stringers block passage main spar approximate dihedral angle has indicated formers F-5 F-6 will help aligning wing halves dihedral full-size aircraft substantial dihedral model approximately 1 rib Once wing halves positioned leading trailing edges main spar meet indicated two halves joined together epoxy Before wing joined fuselage check has approximately two degrees positive incidence use side longeron reference line wing joined per40 AIRFLO ENGINE MOUNT manently fuselage using epoxy scrap balsa fill gaps between wing nearby supporting fuselage formers area between root rib fuselage filled 1/3 2 sheet both strength base adhering tissue covering Similarly 1/32 X p pieces installed following shape airfoil portions fuselage adjacent wing root adds strength also provides suitable base tissue attachment nacelles joined wing position shown plan angled tops formers N-4 N-5 N-6 N-7 aligned underside wing trailing edge epoxied N-7 leading edge joined N-3 shown Once nacelle place fill area between nacelle underside wing rib nearest 1/32 sheet no need put 1/32 sheet fill top surfaces wing except portion tween N-3 turbulator spar Landing Geai- As indicated plan landing gear model optionat Flying Aces Rules permit subjects retractable gear flown wheels up thus eliminating considerable weight drag intend place model static dis play landing gear may desirable realistic base model decide build landing gear suggested make removable flying favorite technique use plug type small receptacles 1 / 16 aluminum tubing placed points main landing gear members meet fuselage nacelles landing gear components fashioned 1/32 wire pins slide aluminum tube receptacles intend use landing gear model suggested build appropriate recep tacles before proceeding covering Covering Coloring wing fuselage assembled using 1/32 sheet fill key points such wing roots etc have strengthened stress areas have provided anchor points tissue covering Almost Tigercats overall dark navy blue prototype color prototype original aircraft silver first F7 Fs tested Patuxent Maryland yellow July 1978 issue Air Classics magazine contains color photos civilian Tigercat silver red white black trim chose mark model green white bands sported Marine Corps F7 F El Toro Marine Base 1946 keeping general design philosophy suggested after shrinking tissue single coat dope applied As no rubber motor passing through fuselage have opportunity install completely detailed cockpit full pilot figure wish intention model pressures completing July 15 16 1978 Flying Aces National Meet dictated use conventional pilot bust carved styrofoam have unable find good detail F7 F cockpit interior fair amount information contained Model Airplane News book Best Nye VoL 3 Also excellent reference scale details may hadbypurchasingthe 1/72 Monogram plastic kit Propellers I used 8 Sterling plastic propellers cut 7 Static three-bladed propellers also made using 7 Sleek Streak props epoxied appropriate angles model will probably fly three-bladed props 112 Model Aviation 6 MODELS TO CHOOSE FROM OUR BEST SELLER THE CARDINAL SPORT - At Dealer snej snOlpststsa ,Sl55 O5uy atSbl5 50 bOlS5SbI It05 5 50 5P4i5Il ,j$OOa As, platis 5ttiSK5ith04df,,50Il0dOd FsOfl,SI O5OSt4 ato Intotti. Sirsto ad ta tfI 55 511dt5I COiai SOdy 51 YOSt 9t 555 COthI hO,. poshtOds t,oOlO 05 stnt sato ftt antOstrtWtO 4 tiittOtSSiflQ IttOtOt eOOtU5 on. 05 Sf545 0S50bI Ittlo 001 nO 554005 OdOSIttIs 50 i5t51155 0 5001055 000015 U. rail 5tSbilOO 00405 0050 s 51. ebsoted tea, Os a, OOse Md 5085044 50 OptS.flInadatiolAol 5 OsoljS5 4-Channel 25-40 Size 83 Wingspan 20-22 Os Loading Vey Aerobadic THE TRIPLE THREAT N QUIKRAY-500 has eneed meet need model could built last very stronj meet requirements AMA Sport Pylon Events Quicky 500 Pylon Racing Fun Fly Events around Sport Flying Trainer general Pattern Flying baby strong Bull lightandlast baby will turn Pylon tighter anything have seen will snap stall out. QUIKRAY-500 can built complete air Twelve Fifteen hours covered materials auch SUPER MONOKOTE other covering same family U M6DUWS A3AFT jOWL CO INC 500 FAST IS WHAT SHE IS DOCILE Winpapan 50 inArea 503 sq Engine 1945Weight 3l lbs Material AU Balsa Ply needed have yet try Flying Various motors have tried thus far best results obtained two 20 ioops flat rubber braided better distribute weight unwound motors rear motor pegs short lengths 1/16 aluminum tubing positioned rear nacelle As motors considerably longer distance between rear motor peg propeller hook used propeller hooks bent such way give appearance Z viewed behind such hook inhibits tendency long motor climb propeller shaft bind mechanism generally use winding stooge recommend constructed basic stooge large H-shaped structure pieces 1/16 plywood sheet portions tongue depressors attached fit either side rear motor peg nacelle Apiece 1/32 wire passed through tongues through rear motor peg holding unit stable motor wound H-shaped stooge base center crossbar between legs H nailed otherwise fastened stake driven ground possible launch model holding propeller tossing both hands once prefer use cradle consisting piece 1 X 2 pine stock two notched upright pieces attached notches uprights fit over propeller hubs keep motors unwinding leaves free hold model area F-8 F-9 right hand hold cradle left Ready launch simply pull cradle away propeller release model conventional way model built fly left under power found necessary add approximately two degrees left side- two degrees down-thrust propellers found necessary off set rudder approximately two degrees left Finished propellers motors model weighs 1 ounces balance point approximately d former F-6 model still being test flown flights date have shown remarkably stable characteristically steep rapid climb under power some difficulty stabilizer initially corrected building thicker lifting stabilizer Unfortunately time Flying Aces Nats yet appreciated nosedown effect lifting stabilizer result although model climbed well under power went steep dive altitude limiting flight time 30 seconds believe design capable minute flights changing elevator angle attack giving up elevator have countered its lifting tendencies considerably improved glide best flight time since making adjust ments has 44 seconds obtained Wright-Patterson Air Force Base Septem ber24 1978 little tinkering thermal knows.. Stolen From van Ames Department Store Athens PARed white blue Aeromaster Kraft 7ch 2-stick OS Blackhead 60 flight box 12V battery / power panel tools Kraft 5-ch receiver servos K&B 35cc RC No bler kit Excalibur kit miscellaneous planes balsa Contact Dale Lent RD 1 Box 43-C Nichols NY 13812 Tel 1-607-699-3144 Athens Police Dept Tel 1-717-885-1401 FF Indoor/Tenny Continued page 33 thermals things such thermal inversions may appear affect model performance unpredictable fashion Only really skilled fliers know use factors predictable ways What Else Well international flimsies put away First World Peanut Gran Prix will held sponsored Doc Martins Miami Indoor Airplane Model Association Peanut Scale contest will CDed directed whatever Butch Hadland UK rest week thats righta whole week will taken NIMAS Fifth NIMAS Annual Record Trials VNART VNART formula may changed somewhat year details remain worked out Anyone misses week modeling will regret CO2 Models has mentioned before column newest very tiny CO2 engines turning up indoor models Photo 1 shows very nice CO2 powered indoor scale model Stearman PT-17 Bob Sie dentopf Hammond IN model flown annual Midwest Indoor Cham pionships held Chicago IL Although door purists doubtless will very nervous over intrusion CO2 models airspace technology very interesting type flying Model Boxes mention World Cham pionship brings forth thoughts model transportation problems Everyone has April1980 113 [I LIGHT AND QUIK ITS FULL OF TIGER EATING GRINS!! AAmco Inc humbly say no WHEELS CONTROL-UNEFREE-FLIGHT VINTAGESMOOTHGOLDEN AGENEW sizes21/iCONTOURsizes2/zBALLOON 3/i3/34234 3/g 13341314 13342/41/2 11443/i1143W11/44/a31/454 11/2511/241/211/2533/4 1/6S/82145141/g61/i SCALE PILOTS DERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS JjLLIAMS SEND 5Ott FOR COMPLETE ILLUSTRATED CATALOG EROS IHZs. DEPT MA PAWNEE ST SAN MARCOS CA 9 HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS CHECK THESE FEATURES twist its locked 2Push twst Its f 3Will come f under heavy engine vibration 4Will short out sPositive spring contact 630 inch lead wire Still atyoirr hobhy p295 dealers & 1 gIF INJITFfl ever associated WCh no matter what type model involved has heard hor ror stories hero stories depending upon viewpoint team members arriving models tatters Sometimes stories funny retrospect however models successfully repaired team member involved has started handicap difficult overcome Whats Needed Obviously desirable endresult effort transport model airplanes around world arrive contest models totally undamaged major hazards shock dropped con tainers vibration various kinds vehicular activity Indoor models aiso sen sitive temperature extremes especially heat Woe unto unwary locks indoor models rented car standing out sum mer sun Such elevated temperatures will warp models quickly very hardest types problems deal especially thousands miles friendly workshop International move ment type material brings forth another unexpected hazardthe Customs spector bother open model containers indoor models can damaged easily unless box opened room low air circulation Take Peek Mr Inspector Ray Harlan isnt first use idea model box well-prepared curious customs spector Photo 2 clearly shows Rays plexiglas inserts very easy show contents box opening boxs weight penalty essentially same before adding windows Two other aspects indoor box design show photocareful mount ing model parts along clever packaging first insures model parts cannot drift around inside box second ailows models carried given size box Other Problems Once models packed box made visible inspectors stand better chance getting Big Meet models intact However models cannot easily removed box contest may damaged haste fly Dan Dominas box seen Photo 3 shows way hinge box parts can reached careful study photo shows fuselage/tail group mounted under wing props under other wing main part box similar arrangement serves two models Mounting Techullques Any mounting fixture indoor model parts must meet four goals First fixture must prevent model com ponent coming out holder box transit part must rotate move around holder Otherwise part may damage nearby part rub against box damage itself Sec ond mounting should minimize transmission external shocks model parts Third fixture should designed easy smooth removal model part box sticking fixture can cause ex cessive force applied model removed box sudden release holding force may cause model strike box another model best model can removed hand Finally fix ture must crush deform model way sure fuselages tail booms will retain alignment during shipmenta very tiny warp tail boom can subtly detract performance manner expected Heres Photo 4 shows Cezar Banks solved mounting accessibility problems whole side box folds down allow easy access several parts time Slotted foam rubber pads firmly hold props hubs encasing prop hooks shock transmission minim ized blades allowed support themselves hubs cannot rotate blades can stack closely together danger foam will easily release prop needed Two wings has removed held friction-fit tubes spacing identical fuselage wings can unplugged just fuselage Two fuselages fit neatly between wings tail surfaces alternating fuselages also use foam-padded fork-type supports hold firmly crushing Props mount under wings short box lid supports two complete models small space yet allows easy access removal Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/Meuser Con finued page 35 Brookenone Co,pany 127 vose Fern Rd. Peterboroogh NH 03458 Small hand taclo misc Mfgr Buwer Model Airplane Co Toner Edward J PO Son 124 Howell NJ 07731 201 363-0845 Robber power CO scale old-taner kits plans Mfgr Cal Acm no longer active See J&R Models CHE Hobblee 10900 Eastwood Ave. Inglewood CA 90304 213 674-1756 Krts classes brands Comp Modnls Kitco d-Ks Micro Blon Ridge Tisson Prnlli robber lobn Ott CPM Prodacta 722 Lennox St. vreka CA 96097916842-4075 Old-tmer kos 30 Soaring Glider $498 ppd 30 Pacific Ace Ok P30 5695 ppd Mfgr Champion Modal Products Sebmoedner George 880 Carmen Ct LaVerne CA 91750 714 599-3348 Coupe dHiver Molcihill kits Ponlb FAI robber misc robberpower Supplies Classic Era Modelpians Oraga John 356 Grand Blvd Bedford OH 44146 Robber-powered scale models 30s 12 30 spat Stahl Lindberg Schroder Storiale $1/list sample Clam James C. see Clemeraft Clemeraft Clam James PO Ban 524 Sand Springs OK 74063 VA gas kits 0km Bird tot 79 USFF Champs Coontry Soy Witch Hawk 1st 79 Nets Cot Ill record Mfgr Cleveland Model & Supply Co. 10307 Detroit Ave. Cleveland OH 44102216 961-3600 Hundreds ot plans some old some now flyrog scale aircraft 114 Model Aviation SCALE RADIO CONTROL
Edition: Model Aviation - 1980/04
Page Numbers: 30, 31, 32, 112, 113, 114
rflOsOs sy Muss OrOWS ana t flu autfior ALTHOUGH too late see WW II combat Tigercat has called hottest powerfiul twin-engine fighter its day Its angular wing full-bodied nacelles radial engines clearly show corpulence usually associated other cats Grummans WW II family surprise Tigercats de sign its extremely narrow very graceful fuselage virtually built around pilots dimen sions giving slim almost sailplane-like look nacelles proportionally longer widely spaced twin-engine subjects course particular signifi cance selecting rubber-power scale subject since nacelle length propeller size both important items consideration Construction The first consideration design ing Tigercat lightly constructed possible sacrificing strength scale appearance selection light-weight wood major importance wood used dh possible launch twin-engined model holding prop tossing ship two hands simultaneously Dennis prefers cradlesee text retains props cradle being held hand ship other Cradle pulled free ship launched conventional manner Insert Detachable gear static purposes construction prototype model purchased Micro-X- Products P 0 Box 1063 Lorain OH 44055 numerous other sources fine quality materials cannot select wood yourself sure instruct person making selection use care selecting straight grain light wood Much Tigercat built strip stock relatively short length already have recommend make purchase balsa stripper An excellent balsa stripper may purchased approximately $1000 Jim Jones 36631 Ledgestone Mt Clemens MI 43043 Straight-grained wood strips best re-emphasizes need careful wood selection model designed eye maximum efficiency minimum ofmaterials wing stabilizer instance built up strip stock using what has called cracked rib California rib construction Basically technique involves use con ventional leading trailing edges together notched main spar strip stock attached bottom flying surface flat top formed taking strip stock top main spar leading trailing edges respectively airfoil completed adding turbulator spar tapered strip stock half way between main spar leading edge wing should built wash-out tip leading edge flat plan outboard tip trailing edge propped up approximately 3/16 gradually creases makings stabilizing warp half wing have built several wings type have performed welL Being essentially 30 Model Aviation 00500 SO WET YTNWLCN OR RENA BOTTOM ONLYI I,ROOCO NS0WT a340050 \ I FlRRrCw il[F1 SPAR _ [ JI- ____ TAFRILLOFAR 5000040 LIRONEET RAIN SPASNEON \JLlI~ I1-N\IILOOOERONI[IILZOro. USA SOSTUFWCEOTON NASA II ISO II 5 CE El NOYDSO LONINATEN TO IIB NO 400000 NODROSY rAIN STRAWS vOrOI RUUENThO AO%OOPS WINOI4INRILOROERNNSNARED YAW ANON EUOON orosNO MOE SW Fr7 FSF PENOFror SOONER ONROON OLEFY WOE 05000AINSTOLNONY- -I-- AEVEI PANEL ORE IAN NOCET1-lS0IS INNS OSEET-.I-roN STOASPAR I3z Zr INN STAN SLERORT0 CEN FIE =E= --3~ P-SP-FZSSCALE OCYLAW 705 OS LOEESEOOSF SCALA ROd ONNASONE FOR FENTON NACELLE LAOA S S 57 SCASE NErO 0% AIRCRAFT RON MOO JANE ROEFEET ROEC BEST OF WEE 0048 1505 NAN 051041573- --- V2 SCALE LOAIOSO NASA FSOAE 005040 REN OION OIEN WOES SOWONiMJ OVER DANK kAlE WIThCrunuin F7F TigerCat TWIN RUBBER POWERED AENIOSED AND DROWN BY DENNIS C NOENON PEN NY lETS collection flat surfaces wing constructed fashion particularly suited aircraft wood metal skin tissue covering allowed stretch flat eliminating peaks valleys associated covering wing built using conventional ribs technique also uses minimum material result light fuselage nacelles also designed use materials sparingly Only formers located anticipated positions stress made sheet balsa other formers laminated thinly cut strip stock Stabilizer Tradition dictates building new model start its less complicated components give builder feeling construction technique involved mind select cut length tockfairly hard stabilizers leading edge Position over plan mark rib locations notch leading edge receive 1/16 sq strip will serve stabilizers ribs Similarly stabilizers spar cut straightgrain stock 1/16 1/20 thickness trailing edge 1/16 x stab spar trailing edge notched receive 1 / 16 sq stabilizer ribs Place notched trailing leading edges directly over plan securing build ing surface straight pins tips may either laminated 1/16 X 1/64 may cut light 1/16 sheet Add 1/16 stabilizer rib bottoms Next add stabilizer spar using 1/16 square stock construct upper portions stab ribs As leading edge k upper portions stabilizers ribs may simply fitted remaining IIIIII IIII April 1980 31 Co N w 0 w w C, w -J Sel -J C, z 0 w N ci -J -J UMaximum iency obtained minimum use materials ewing employs cracea rio California rib construction Wing cross section basically two triangles base base turbulator spar top between main spar leading edge may drive airfoil purists up wall such sections have used complete success radio combat well portions notches cut stabilizers ribs cut broken stabilizer spar leading edge Similarly upper parts theso can joined trailing edge As stabilizers ribs may fit notches thethe trailing edge 1/16 thick will find sparit necessary first cut upper part stabilizer rib length equal distance stabilizer spar its trailing edge avoid bumpy trailing edge remove upper part stabilizer rib cut underside rear part acute angle has greater surface contact 1/16 sq bottom portion rib upper surface ribs now should blend smoothly trailing edge require little sanding complete air foil shape Next add stabilizers turbulator spar hard 1/20 square 1/16 sq strip stock dry round leading edge tips taper trailing edge turbulator spar Win owing basic technique described stabilizer carefully select pieces 3/32 X p stock notch places shown plan wings trailing edge leading edge constructed somewhat differ ently piece 1 / 16 sq butted against piece reater strength 1/16 portion leading edge notched receive flat bottom pieces wings ribs main spar cut 1/16 sheet notched shown plan Begin wing construction positioning securing notched leading trailing edges Next cut pieces 1/16 sq fitted appropriate notches thus joining leading trailing edges Before joining pieces permanently however place strip 3/16 thick stock outer tip trailing edge will give built wash-out greater stability glue 1/16 sq bottom portions ribs leading trailing edges Next position main spar over plan glue ittothe 1/16 sq lowerportionsofeachwing rib upper portions wing rib fashioned / 16 sq manner similar described stab upper portions ribs place glue turbulator spar place shown Finish adding tip made either 1/16 sheet stock laminated either event will necessary break wing tip goes trailing edge upper portion main spar tip goes upper portion main spar tip turbulator spar turbu lator spar down leading edge Round leading edge wing tips taper trailing edge Fuselage design seeks use minimum materials maximum effect Accordingly formers F-i F-5 F-6 cut 1/16 sheet F-8 F-9 F-12 cut 1/32 sheet sheet wood formers positions requiring strength left solid Notice former notched receive longerons stringers formers key location fuselag&s longitudinal struc tural members remaining formers shown plan laminated form supports stringers etc place requiring high structural strength fuselage fin por tion vertical stabilizer built unit keep basic fuselage shape true sug gested itbe built aug Forthe original jig simply piece nite fuselage profile drawn locations formers cut away bottom 1/16 X after having approximately 1/16 deep notches cut receive hollow formers fastened masonite jig using bits masking tape jig can placed vise nailed edge workbench Next solid formersF-1 F-5 F-6 F-8 F-9 F-12 positioned bottom keel top keel added formers glued place using small plastic triangle square keel 1/16 undersized built-up formers con structed cutting 1/64 strips 1/16 sheet Four strips joined bent around shape shown plan create hollow former Once positioned laminated pieces cemented using Zap cyanoacrylic glue hollow completed adding 1/16 sq cross braces shown plan hollow formers fitted keel structure cemented either white glue model cement due minimal surface contact Next 1 / 16 X longerons cut notched fitted place longerons fit snugly solid formers merely touch hollow formers Cyanoacrylic glue used cement longerons solid formers view minimal surface contact either white glue model airplane cement used attach hollow formers longerons Stringers added fitting notches cut solid formers gluing white glue model cement hollow formers Building fuselage fashion uppermost lowermost stringers position before fuselage frame removed masonite jig final stringers added once fuselage removed Continued page 112 32 Model Aviation rur convenience winaing two motors Inis winoing stana positions piane ana anacnes TO tfl6 two winding peg tubes aft portion nacelles Sterling 8-in plastic props turned two ioops FAI flat rubber stand fully described text rully wouna pun etteurieu iu ne erie, 10JP. arqra. unhs ofta a, wirn lightweight oesrgn pniosophy coat clear epplied Basic color typical Navy dark blue green white bands Color misted spray gun Winning Ideas FOURMOST RETRACTABLE TOW HOOK RELEASE Price $675 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight Y2 oz OTHER FOURMOST PRODUCTS 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE S250 IDEAL FOR QUICKY 500 PRICE S525Z2ZZ Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Send SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 357-2732 halftone photo merely enlarges dots really sharp photo can magnified read stenciled legends plane locate panel lines Best source photos modelers camera prototype can found Dedicated researchers travel great distances spend days photographing measuring plane Bob Dolly Wischer RL 1 S-221 Lapham Peak Roa4 Delafiel4 WI 53018 Tigercat/Norman Continued page 32 jig As indicated shape former F-i 2 vertical tail tapered thickness two hori zontal ribs fin cut scrap 1/20 1/16 sheet stock tapered width equal F-12 join down thickness fins leading edge Also contour upper fuselage immediately behind cockpit somewhat rounded sug gested area between formers F-S F-7 filled tapering pieces 1/16 sheet sanded rounded better approximate look full-size aircraft rudder move able part vertical tail built separately Nacelles Using same techniques described constructing fuselage nacelle formers longerons cut assembled masonite jig hold true being assem bled As nacelles mirror other will have flip formers shown plan make left nacelle Component AssembIy wing halves joined fuselage center such way leading edge half wing joined front former F-S main spars meet just behind former F-6 trailing edges join former F-8 will necessary deeply notch F-8 permit trailing edges pass through will also necessary remove portions fuselage stringers block passage main spar approximate dihedral angle has indicated formers F-5 F-6 will help aligning wing halves dihedral full-size aircraft substantial dihedral model approximately 1 rib Once wing halves positioned leading trailing edges main spar meet indicated two halves joined together epoxy Before wing joined fuselage check has approximately two degrees positive incidence use side longeron reference line wing joined per40 AIRFLO ENGINE MOUNT manently fuselage using epoxy scrap balsa fill gaps between wing nearby supporting fuselage formers area between root rib fuselage filled 1/3 2 sheet both strength base adhering tissue covering Similarly 1/32 X p pieces installed following shape airfoil portions fuselage adjacent wing root adds strength also provides suitable base tissue attachment nacelles joined wing position shown plan angled tops formers N-4 N-5 N-6 N-7 aligned underside wing trailing edge epoxied N-7 leading edge joined N-3 shown Once nacelle place fill area between nacelle underside wing rib nearest 1/32 sheet no need put 1/32 sheet fill top surfaces wing except portion tween N-3 turbulator spar Landing Geai- As indicated plan landing gear model optionat Flying Aces Rules permit subjects retractable gear flown wheels up thus eliminating considerable weight drag intend place model static dis play landing gear may desirable realistic base model decide build landing gear suggested make removable flying favorite technique use plug type small receptacles 1 / 16 aluminum tubing placed points main landing gear members meet fuselage nacelles landing gear components fashioned 1/32 wire pins slide aluminum tube receptacles intend use landing gear model suggested build appropriate recep tacles before proceeding covering Covering Coloring wing fuselage assembled using 1/32 sheet fill key points such wing roots etc have strengthened stress areas have provided anchor points tissue covering Almost Tigercats overall dark navy blue prototype color prototype original aircraft silver first F7 Fs tested Patuxent Maryland yellow July 1978 issue Air Classics magazine contains color photos civilian Tigercat silver red white black trim chose mark model green white bands sported Marine Corps F7 F El Toro Marine Base 1946 keeping general design philosophy suggested after shrinking tissue single coat dope applied As no rubber motor passing through fuselage have opportunity install completely detailed cockpit full pilot figure wish intention model pressures completing July 15 16 1978 Flying Aces National Meet dictated use conventional pilot bust carved styrofoam have unable find good detail F7 F cockpit interior fair amount information contained Model Airplane News book Best Nye VoL 3 Also excellent reference scale details may hadbypurchasingthe 1/72 Monogram plastic kit Propellers I used 8 Sterling plastic propellers cut 7 Static three-bladed propellers also made using 7 Sleek Streak props epoxied appropriate angles model will probably fly three-bladed props 112 Model Aviation 6 MODELS TO CHOOSE FROM OUR BEST SELLER THE CARDINAL SPORT - At Dealer snej snOlpststsa ,Sl55 O5uy atSbl5 50 bOlS5SbI It05 5 50 5P4i5Il ,j$OOa As, platis 5ttiSK5ith04df,,50Il0dOd FsOfl,SI O5OSt4 ato Intotti. Sirsto ad ta tfI 55 511dt5I COiai SOdy 51 YOSt 9t 555 COthI hO,. poshtOds t,oOlO 05 stnt sato ftt antOstrtWtO 4 tiittOtSSiflQ IttOtOt eOOtU5 on. 05 Sf545 0S50bI Ittlo 001 nO 554005 OdOSIttIs 50 i5t51155 0 5001055 000015 U. rail 5tSbilOO 00405 0050 s 51. ebsoted tea, Os a, OOse Md 5085044 50 OptS.flInadatiolAol 5 OsoljS5 4-Channel 25-40 Size 83 Wingspan 20-22 Os Loading Vey Aerobadic THE TRIPLE THREAT N QUIKRAY-500 has eneed meet need model could built last very stronj meet requirements AMA Sport Pylon Events Quicky 500 Pylon Racing Fun Fly Events around Sport Flying Trainer general Pattern Flying baby strong Bull lightandlast baby will turn Pylon tighter anything have seen will snap stall out. QUIKRAY-500 can built complete air Twelve Fifteen hours covered materials auch SUPER MONOKOTE other covering same family U M6DUWS A3AFT jOWL CO INC 500 FAST IS WHAT SHE IS DOCILE Winpapan 50 inArea 503 sq Engine 1945Weight 3l lbs Material AU Balsa Ply needed have yet try Flying Various motors have tried thus far best results obtained two 20 ioops flat rubber braided better distribute weight unwound motors rear motor pegs short lengths 1/16 aluminum tubing positioned rear nacelle As motors considerably longer distance between rear motor peg propeller hook used propeller hooks bent such way give appearance Z viewed behind such hook inhibits tendency long motor climb propeller shaft bind mechanism generally use winding stooge recommend constructed basic stooge large H-shaped structure pieces 1/16 plywood sheet portions tongue depressors attached fit either side rear motor peg nacelle Apiece 1/32 wire passed through tongues through rear motor peg holding unit stable motor wound H-shaped stooge base center crossbar between legs H nailed otherwise fastened stake driven ground possible launch model holding propeller tossing both hands once prefer use cradle consisting piece 1 X 2 pine stock two notched upright pieces attached notches uprights fit over propeller hubs keep motors unwinding leaves free hold model area F-8 F-9 right hand hold cradle left Ready launch simply pull cradle away propeller release model conventional way model built fly left under power found necessary add approximately two degrees left side- two degrees down-thrust propellers found necessary off set rudder approximately two degrees left Finished propellers motors model weighs 1 ounces balance point approximately d former F-6 model still being test flown flights date have shown remarkably stable characteristically steep rapid climb under power some difficulty stabilizer initially corrected building thicker lifting stabilizer Unfortunately time Flying Aces Nats yet appreciated nosedown effect lifting stabilizer result although model climbed well under power went steep dive altitude limiting flight time 30 seconds believe design capable minute flights changing elevator angle attack giving up elevator have countered its lifting tendencies considerably improved glide best flight time since making adjust ments has 44 seconds obtained Wright-Patterson Air Force Base Septem ber24 1978 little tinkering thermal knows.. Stolen From van Ames Department Store Athens PARed white blue Aeromaster Kraft 7ch 2-stick OS Blackhead 60 flight box 12V battery / power panel tools Kraft 5-ch receiver servos K&B 35cc RC No bler kit Excalibur kit miscellaneous planes balsa Contact Dale Lent RD 1 Box 43-C Nichols NY 13812 Tel 1-607-699-3144 Athens Police Dept Tel 1-717-885-1401 FF Indoor/Tenny Continued page 33 thermals things such thermal inversions may appear affect model performance unpredictable fashion Only really skilled fliers know use factors predictable ways What Else Well international flimsies put away First World Peanut Gran Prix will held sponsored Doc Martins Miami Indoor Airplane Model Association Peanut Scale contest will CDed directed whatever Butch Hadland UK rest week thats righta whole week will taken NIMAS Fifth NIMAS Annual Record Trials VNART VNART formula may changed somewhat year details remain worked out Anyone misses week modeling will regret CO2 Models has mentioned before column newest very tiny CO2 engines turning up indoor models Photo 1 shows very nice CO2 powered indoor scale model Stearman PT-17 Bob Sie dentopf Hammond IN model flown annual Midwest Indoor Cham pionships held Chicago IL Although door purists doubtless will very nervous over intrusion CO2 models airspace technology very interesting type flying Model Boxes mention World Cham pionship brings forth thoughts model transportation problems Everyone has April1980 113 [I LIGHT AND QUIK ITS FULL OF TIGER EATING GRINS!! AAmco Inc humbly say no WHEELS CONTROL-UNEFREE-FLIGHT VINTAGESMOOTHGOLDEN AGENEW sizes21/iCONTOURsizes2/zBALLOON 3/i3/34234 3/g 13341314 13342/41/2 11443/i1143W11/44/a31/454 11/2511/241/211/2533/4 1/6S/82145141/g61/i SCALE PILOTS DERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS JjLLIAMS SEND 5Ott FOR COMPLETE ILLUSTRATED CATALOG EROS IHZs. DEPT MA PAWNEE ST SAN MARCOS CA 9 HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS CHECK THESE FEATURES twist its locked 2Push twst Its f 3Will come f under heavy engine vibration 4Will short out sPositive spring contact 630 inch lead wire Still atyoirr hobhy p295 dealers & 1 gIF INJITFfl ever associated WCh no matter what type model involved has heard hor ror stories hero stories depending upon viewpoint team members arriving models tatters Sometimes stories funny retrospect however models successfully repaired team member involved has started handicap difficult overcome Whats Needed Obviously desirable endresult effort transport model airplanes around world arrive contest models totally undamaged major hazards shock dropped con tainers vibration various kinds vehicular activity Indoor models aiso sen sitive temperature extremes especially heat Woe unto unwary locks indoor models rented car standing out sum mer sun Such elevated temperatures will warp models quickly very hardest types problems deal especially thousands miles friendly workshop International move ment type material brings forth another unexpected hazardthe Customs spector bother open model containers indoor models can damaged easily unless box opened room low air circulation Take Peek Mr Inspector Ray Harlan isnt first use idea model box well-prepared curious customs spector Photo 2 clearly shows Rays plexiglas inserts very easy show contents box opening boxs weight penalty essentially same before adding windows Two other aspects indoor box design show photocareful mount ing model parts along clever packaging first insures model parts cannot drift around inside box second ailows models carried given size box Other Problems Once models packed box made visible inspectors stand better chance getting Big Meet models intact However models cannot easily removed box contest may damaged haste fly Dan Dominas box seen Photo 3 shows way hinge box parts can reached careful study photo shows fuselage/tail group mounted under wing props under other wing main part box similar arrangement serves two models Mounting Techullques Any mounting fixture indoor model parts must meet four goals First fixture must prevent model com ponent coming out holder box transit part must rotate move around holder Otherwise part may damage nearby part rub against box damage itself Sec ond mounting should minimize transmission external shocks model parts Third fixture should designed easy smooth removal model part box sticking fixture can cause ex cessive force applied model removed box sudden release holding force may cause model strike box another model best model can removed hand Finally fix ture must crush deform model way sure fuselages tail booms will retain alignment during shipmenta very tiny warp tail boom can subtly detract performance manner expected Heres Photo 4 shows Cezar Banks solved mounting accessibility problems whole side box folds down allow easy access several parts time Slotted foam rubber pads firmly hold props hubs encasing prop hooks shock transmission minim ized blades allowed support themselves hubs cannot rotate blades can stack closely together danger foam will easily release prop needed Two wings has removed held friction-fit tubes spacing identical fuselage wings can unplugged just fuselage Two fuselages fit neatly between wings tail surfaces alternating fuselages also use foam-padded fork-type supports hold firmly crushing Props mount under wings short box lid supports two complete models small space yet allows easy access removal Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/Meuser Con finued page 35 Brookenone Co,pany 127 vose Fern Rd. Peterboroogh NH 03458 Small hand taclo misc Mfgr Buwer Model Airplane Co Toner Edward J PO Son 124 Howell NJ 07731 201 363-0845 Robber power CO scale old-taner kits plans Mfgr Cal Acm no longer active See J&R Models CHE Hobblee 10900 Eastwood Ave. Inglewood CA 90304 213 674-1756 Krts classes brands Comp Modnls Kitco d-Ks Micro Blon Ridge Tisson Prnlli robber lobn Ott CPM Prodacta 722 Lennox St. vreka CA 96097916842-4075 Old-tmer kos 30 Soaring Glider $498 ppd 30 Pacific Ace Ok P30 5695 ppd Mfgr Champion Modal Products Sebmoedner George 880 Carmen Ct LaVerne CA 91750 714 599-3348 Coupe dHiver Molcihill kits Ponlb FAI robber misc robberpower Supplies Classic Era Modelpians Oraga John 356 Grand Blvd Bedford OH 44146 Robber-powered scale models 30s 12 30 spat Stahl Lindberg Schroder Storiale $1/list sample Clam James C. see Clemeraft Clemeraft Clam James PO Ban 524 Sand Springs OK 74063 VA gas kits 0km Bird tot 79 USFF Champs Coontry Soy Witch Hawk 1st 79 Nets Cot Ill record Mfgr Cleveland Model & Supply Co. 10307 Detroit Ave. Cleveland OH 44102216 961-3600 Hundreds ot plans some old some now flyrog scale aircraft 114 Model Aviation SCALE RADIO CONTROL
Edition: Model Aviation - 1980/04
Page Numbers: 30, 31, 32, 112, 113, 114
rflOsOs sy Muss OrOWS ana t flu autfior ALTHOUGH too late see WW II combat Tigercat has called hottest powerfiul twin-engine fighter its day Its angular wing full-bodied nacelles radial engines clearly show corpulence usually associated other cats Grummans WW II family surprise Tigercats de sign its extremely narrow very graceful fuselage virtually built around pilots dimen sions giving slim almost sailplane-like look nacelles proportionally longer widely spaced twin-engine subjects course particular signifi cance selecting rubber-power scale subject since nacelle length propeller size both important items consideration Construction The first consideration design ing Tigercat lightly constructed possible sacrificing strength scale appearance selection light-weight wood major importance wood used dh possible launch twin-engined model holding prop tossing ship two hands simultaneously Dennis prefers cradlesee text retains props cradle being held hand ship other Cradle pulled free ship launched conventional manner Insert Detachable gear static purposes construction prototype model purchased Micro-X- Products P 0 Box 1063 Lorain OH 44055 numerous other sources fine quality materials cannot select wood yourself sure instruct person making selection use care selecting straight grain light wood Much Tigercat built strip stock relatively short length already have recommend make purchase balsa stripper An excellent balsa stripper may purchased approximately $1000 Jim Jones 36631 Ledgestone Mt Clemens MI 43043 Straight-grained wood strips best re-emphasizes need careful wood selection model designed eye maximum efficiency minimum ofmaterials wing stabilizer instance built up strip stock using what has called cracked rib California rib construction Basically technique involves use con ventional leading trailing edges together notched main spar strip stock attached bottom flying surface flat top formed taking strip stock top main spar leading trailing edges respectively airfoil completed adding turbulator spar tapered strip stock half way between main spar leading edge wing should built wash-out tip leading edge flat plan outboard tip trailing edge propped up approximately 3/16 gradually creases makings stabilizing warp half wing have built several wings type have performed welL Being essentially 30 Model Aviation 00500 SO WET YTNWLCN OR RENA BOTTOM ONLYI I,ROOCO NS0WT a340050 \ I FlRRrCw il[F1 SPAR _ [ JI- ____ TAFRILLOFAR 5000040 LIRONEET RAIN SPASNEON \JLlI~ I1-N\IILOOOERONI[IILZOro. USA SOSTUFWCEOTON NASA II ISO II 5 CE El NOYDSO LONINATEN TO IIB NO 400000 NODROSY rAIN STRAWS vOrOI RUUENThO AO%OOPS WINOI4INRILOROERNNSNARED YAW ANON EUOON orosNO MOE SW Fr7 FSF PENOFror SOONER ONROON OLEFY WOE 05000AINSTOLNONY- -I-- AEVEI PANEL ORE IAN NOCET1-lS0IS INNS OSEET-.I-roN STOASPAR I3z Zr INN STAN SLERORT0 CEN FIE =E= --3~ P-SP-FZSSCALE OCYLAW 705 OS LOEESEOOSF SCALA ROd ONNASONE FOR FENTON NACELLE LAOA S S 57 SCASE NErO 0% AIRCRAFT RON MOO JANE ROEFEET ROEC BEST OF WEE 0048 1505 NAN 051041573- --- V2 SCALE LOAIOSO NASA FSOAE 005040 REN OION OIEN WOES SOWONiMJ OVER DANK kAlE WIThCrunuin F7F TigerCat TWIN RUBBER POWERED AENIOSED AND DROWN BY DENNIS C NOENON PEN NY lETS collection flat surfaces wing constructed fashion particularly suited aircraft wood metal skin tissue covering allowed stretch flat eliminating peaks valleys associated covering wing built using conventional ribs technique also uses minimum material result light fuselage nacelles also designed use materials sparingly Only formers located anticipated positions stress made sheet balsa other formers laminated thinly cut strip stock Stabilizer Tradition dictates building new model start its less complicated components give builder feeling construction technique involved mind select cut length tockfairly hard stabilizers leading edge Position over plan mark rib locations notch leading edge receive 1/16 sq strip will serve stabilizers ribs Similarly stabilizers spar cut straightgrain stock 1/16 1/20 thickness trailing edge 1/16 x stab spar trailing edge notched receive 1 / 16 sq stabilizer ribs Place notched trailing leading edges directly over plan securing build ing surface straight pins tips may either laminated 1/16 X 1/64 may cut light 1/16 sheet Add 1/16 stabilizer rib bottoms Next add stabilizer spar using 1/16 square stock construct upper portions stab ribs As leading edge k upper portions stabilizers ribs may simply fitted remaining IIIIII IIII April 1980 31 Co N w 0 w w C, w -J Sel -J C, z 0 w N ci -J -J UMaximum iency obtained minimum use materials ewing employs cracea rio California rib construction Wing cross section basically two triangles base base turbulator spar top between main spar leading edge may drive airfoil purists up wall such sections have used complete success radio combat well portions notches cut stabilizers ribs cut broken stabilizer spar leading edge Similarly upper parts theso can joined trailing edge As stabilizers ribs may fit notches thethe trailing edge 1/16 thick will find sparit necessary first cut upper part stabilizer rib length equal distance stabilizer spar its trailing edge avoid bumpy trailing edge remove upper part stabilizer rib cut underside rear part acute angle has greater surface contact 1/16 sq bottom portion rib upper surface ribs now should blend smoothly trailing edge require little sanding complete air foil shape Next add stabilizers turbulator spar hard 1/20 square 1/16 sq strip stock dry round leading edge tips taper trailing edge turbulator spar Win owing basic technique described stabilizer carefully select pieces 3/32 X p stock notch places shown plan wings trailing edge leading edge constructed somewhat differ ently piece 1 / 16 sq butted against piece reater strength 1/16 portion leading edge notched receive flat bottom pieces wings ribs main spar cut 1/16 sheet notched shown plan Begin wing construction positioning securing notched leading trailing edges Next cut pieces 1/16 sq fitted appropriate notches thus joining leading trailing edges Before joining pieces permanently however place strip 3/16 thick stock outer tip trailing edge will give built wash-out greater stability glue 1/16 sq bottom portions ribs leading trailing edges Next position main spar over plan glue ittothe 1/16 sq lowerportionsofeachwing rib upper portions wing rib fashioned / 16 sq manner similar described stab upper portions ribs place glue turbulator spar place shown Finish adding tip made either 1/16 sheet stock laminated either event will necessary break wing tip goes trailing edge upper portion main spar tip goes upper portion main spar tip turbulator spar turbu lator spar down leading edge Round leading edge wing tips taper trailing edge Fuselage design seeks use minimum materials maximum effect Accordingly formers F-i F-5 F-6 cut 1/16 sheet F-8 F-9 F-12 cut 1/32 sheet sheet wood formers positions requiring strength left solid Notice former notched receive longerons stringers formers key location fuselag&s longitudinal struc tural members remaining formers shown plan laminated form supports stringers etc place requiring high structural strength fuselage fin por tion vertical stabilizer built unit keep basic fuselage shape true sug gested itbe built aug Forthe original jig simply piece nite fuselage profile drawn locations formers cut away bottom 1/16 X after having approximately 1/16 deep notches cut receive hollow formers fastened masonite jig using bits masking tape jig can placed vise nailed edge workbench Next solid formersF-1 F-5 F-6 F-8 F-9 F-12 positioned bottom keel top keel added formers glued place using small plastic triangle square keel 1/16 undersized built-up formers con structed cutting 1/64 strips 1/16 sheet Four strips joined bent around shape shown plan create hollow former Once positioned laminated pieces cemented using Zap cyanoacrylic glue hollow completed adding 1/16 sq cross braces shown plan hollow formers fitted keel structure cemented either white glue model cement due minimal surface contact Next 1 / 16 X longerons cut notched fitted place longerons fit snugly solid formers merely touch hollow formers Cyanoacrylic glue used cement longerons solid formers view minimal surface contact either white glue model airplane cement used attach hollow formers longerons Stringers added fitting notches cut solid formers gluing white glue model cement hollow formers Building fuselage fashion uppermost lowermost stringers position before fuselage frame removed masonite jig final stringers added once fuselage removed Continued page 112 32 Model Aviation rur convenience winaing two motors Inis winoing stana positions piane ana anacnes TO tfl6 two winding peg tubes aft portion nacelles Sterling 8-in plastic props turned two ioops FAI flat rubber stand fully described text rully wouna pun etteurieu iu ne erie, 10JP. arqra. unhs ofta a, wirn lightweight oesrgn pniosophy coat clear epplied Basic color typical Navy dark blue green white bands Color misted spray gun Winning Ideas FOURMOST RETRACTABLE TOW HOOK RELEASE Price $675 Simplest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required N eight Y2 oz OTHER FOURMOST PRODUCTS 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE S250 IDEAL FOR QUICKY 500 PRICE S525Z2ZZ Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Send SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 357-2732 halftone photo merely enlarges dots really sharp photo can magnified read stenciled legends plane locate panel lines Best source photos modelers camera prototype can found Dedicated researchers travel great distances spend days photographing measuring plane Bob Dolly Wischer RL 1 S-221 Lapham Peak Roa4 Delafiel4 WI 53018 Tigercat/Norman Continued page 32 jig As indicated shape former F-i 2 vertical tail tapered thickness two hori zontal ribs fin cut scrap 1/20 1/16 sheet stock tapered width equal F-12 join down thickness fins leading edge Also contour upper fuselage immediately behind cockpit somewhat rounded sug gested area between formers F-S F-7 filled tapering pieces 1/16 sheet sanded rounded better approximate look full-size aircraft rudder move able part vertical tail built separately Nacelles Using same techniques described constructing fuselage nacelle formers longerons cut assembled masonite jig hold true being assem bled As nacelles mirror other will have flip formers shown plan make left nacelle Component AssembIy wing halves joined fuselage center such way leading edge half wing joined front former F-S main spars meet just behind former F-6 trailing edges join former F-8 will necessary deeply notch F-8 permit trailing edges pass through will also necessary remove portions fuselage stringers block passage main spar approximate dihedral angle has indicated formers F-5 F-6 will help aligning wing halves dihedral full-size aircraft substantial dihedral model approximately 1 rib Once wing halves positioned leading trailing edges main spar meet indicated two halves joined together epoxy Before wing joined fuselage check has approximately two degrees positive incidence use side longeron reference line wing joined per40 AIRFLO ENGINE MOUNT manently fuselage using epoxy scrap balsa fill gaps between wing nearby supporting fuselage formers area between root rib fuselage filled 1/3 2 sheet both strength base adhering tissue covering Similarly 1/32 X p pieces installed following shape airfoil portions fuselage adjacent wing root adds strength also provides suitable base tissue attachment nacelles joined wing position shown plan angled tops formers N-4 N-5 N-6 N-7 aligned underside wing trailing edge epoxied N-7 leading edge joined N-3 shown Once nacelle place fill area between nacelle underside wing rib nearest 1/32 sheet no need put 1/32 sheet fill top surfaces wing except portion tween N-3 turbulator spar Landing Geai- As indicated plan landing gear model optionat Flying Aces Rules permit subjects retractable gear flown wheels up thus eliminating considerable weight drag intend place model static dis play landing gear may desirable realistic base model decide build landing gear suggested make removable flying favorite technique use plug type small receptacles 1 / 16 aluminum tubing placed points main landing gear members meet fuselage nacelles landing gear components fashioned 1/32 wire pins slide aluminum tube receptacles intend use landing gear model suggested build appropriate recep tacles before proceeding covering Covering Coloring wing fuselage assembled using 1/32 sheet fill key points such wing roots etc have strengthened stress areas have provided anchor points tissue covering Almost Tigercats overall dark navy blue prototype color prototype original aircraft silver first F7 Fs tested Patuxent Maryland yellow July 1978 issue Air Classics magazine contains color photos civilian Tigercat silver red white black trim chose mark model green white bands sported Marine Corps F7 F El Toro Marine Base 1946 keeping general design philosophy suggested after shrinking tissue single coat dope applied As no rubber motor passing through fuselage have opportunity install completely detailed cockpit full pilot figure wish intention model pressures completing July 15 16 1978 Flying Aces National Meet dictated use conventional pilot bust carved styrofoam have unable find good detail F7 F cockpit interior fair amount information contained Model Airplane News book Best Nye VoL 3 Also excellent reference scale details may hadbypurchasingthe 1/72 Monogram plastic kit Propellers I used 8 Sterling plastic propellers cut 7 Static three-bladed propellers also made using 7 Sleek Streak props epoxied appropriate angles model will probably fly three-bladed props 112 Model Aviation 6 MODELS TO CHOOSE FROM OUR BEST SELLER THE CARDINAL SPORT - At Dealer snej snOlpststsa ,Sl55 O5uy atSbl5 50 bOlS5SbI It05 5 50 5P4i5Il ,j$OOa As, platis 5ttiSK5ith04df,,50Il0dOd FsOfl,SI O5OSt4 ato Intotti. Sirsto ad ta tfI 55 511dt5I COiai SOdy 51 YOSt 9t 555 COthI hO,. poshtOds t,oOlO 05 stnt sato ftt antOstrtWtO 4 tiittOtSSiflQ IttOtOt eOOtU5 on. 05 Sf545 0S50bI Ittlo 001 nO 554005 OdOSIttIs 50 i5t51155 0 5001055 000015 U. rail 5tSbilOO 00405 0050 s 51. ebsoted tea, Os a, OOse Md 5085044 50 OptS.flInadatiolAol 5 OsoljS5 4-Channel 25-40 Size 83 Wingspan 20-22 Os Loading Vey Aerobadic THE TRIPLE THREAT N QUIKRAY-500 has eneed meet need model could built last very stronj meet requirements AMA Sport Pylon Events Quicky 500 Pylon Racing Fun Fly Events around Sport Flying Trainer general Pattern Flying baby strong Bull lightandlast baby will turn Pylon tighter anything have seen will snap stall out. QUIKRAY-500 can built complete air Twelve Fifteen hours covered materials auch SUPER MONOKOTE other covering same family U M6DUWS A3AFT jOWL CO INC 500 FAST IS WHAT SHE IS DOCILE Winpapan 50 inArea 503 sq Engine 1945Weight 3l lbs Material AU Balsa Ply needed have yet try Flying Various motors have tried thus far best results obtained two 20 ioops flat rubber braided better distribute weight unwound motors rear motor pegs short lengths 1/16 aluminum tubing positioned rear nacelle As motors considerably longer distance between rear motor peg propeller hook used propeller hooks bent such way give appearance Z viewed behind such hook inhibits tendency long motor climb propeller shaft bind mechanism generally use winding stooge recommend constructed basic stooge large H-shaped structure pieces 1/16 plywood sheet portions tongue depressors attached fit either side rear motor peg nacelle Apiece 1/32 wire passed through tongues through rear motor peg holding unit stable motor wound H-shaped stooge base center crossbar between legs H nailed otherwise fastened stake driven ground possible launch model holding propeller tossing both hands once prefer use cradle consisting piece 1 X 2 pine stock two notched upright pieces attached notches uprights fit over propeller hubs keep motors unwinding leaves free hold model area F-8 F-9 right hand hold cradle left Ready launch simply pull cradle away propeller release model conventional way model built fly left under power found necessary add approximately two degrees left side- two degrees down-thrust propellers found necessary off set rudder approximately two degrees left Finished propellers motors model weighs 1 ounces balance point approximately d former F-6 model still being test flown flights date have shown remarkably stable characteristically steep rapid climb under power some difficulty stabilizer initially corrected building thicker lifting stabilizer Unfortunately time Flying Aces Nats yet appreciated nosedown effect lifting stabilizer result although model climbed well under power went steep dive altitude limiting flight time 30 seconds believe design capable minute flights changing elevator angle attack giving up elevator have countered its lifting tendencies considerably improved glide best flight time since making adjust ments has 44 seconds obtained Wright-Patterson Air Force Base Septem ber24 1978 little tinkering thermal knows.. Stolen From van Ames Department Store Athens PARed white blue Aeromaster Kraft 7ch 2-stick OS Blackhead 60 flight box 12V battery / power panel tools Kraft 5-ch receiver servos K&B 35cc RC No bler kit Excalibur kit miscellaneous planes balsa Contact Dale Lent RD 1 Box 43-C Nichols NY 13812 Tel 1-607-699-3144 Athens Police Dept Tel 1-717-885-1401 FF Indoor/Tenny Continued page 33 thermals things such thermal inversions may appear affect model performance unpredictable fashion Only really skilled fliers know use factors predictable ways What Else Well international flimsies put away First World Peanut Gran Prix will held sponsored Doc Martins Miami Indoor Airplane Model Association Peanut Scale contest will CDed directed whatever Butch Hadland UK rest week thats righta whole week will taken NIMAS Fifth NIMAS Annual Record Trials VNART VNART formula may changed somewhat year details remain worked out Anyone misses week modeling will regret CO2 Models has mentioned before column newest very tiny CO2 engines turning up indoor models Photo 1 shows very nice CO2 powered indoor scale model Stearman PT-17 Bob Sie dentopf Hammond IN model flown annual Midwest Indoor Cham pionships held Chicago IL Although door purists doubtless will very nervous over intrusion CO2 models airspace technology very interesting type flying Model Boxes mention World Cham pionship brings forth thoughts model transportation problems Everyone has April1980 113 [I LIGHT AND QUIK ITS FULL OF TIGER EATING GRINS!! AAmco Inc humbly say no WHEELS CONTROL-UNEFREE-FLIGHT VINTAGESMOOTHGOLDEN AGENEW sizes21/iCONTOURsizes2/zBALLOON 3/i3/34234 3/g 13341314 13342/41/2 11443/i1143W11/44/a31/454 11/2511/241/211/2533/4 1/6S/82145141/g61/i SCALE PILOTS DERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS JjLLIAMS SEND 5Ott FOR COMPLETE ILLUSTRATED CATALOG EROS IHZs. DEPT MA PAWNEE ST SAN MARCOS CA 9 HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS CHECK THESE FEATURES twist its locked 2Push twst Its f 3Will come f under heavy engine vibration 4Will short out sPositive spring contact 630 inch lead wire Still atyoirr hobhy p295 dealers & 1 gIF INJITFfl ever associated WCh no matter what type model involved has heard hor ror stories hero stories depending upon viewpoint team members arriving models tatters Sometimes stories funny retrospect however models successfully repaired team member involved has started handicap difficult overcome Whats Needed Obviously desirable endresult effort transport model airplanes around world arrive contest models totally undamaged major hazards shock dropped con tainers vibration various kinds vehicular activity Indoor models aiso sen sitive temperature extremes especially heat Woe unto unwary locks indoor models rented car standing out sum mer sun Such elevated temperatures will warp models quickly very hardest types problems deal especially thousands miles friendly workshop International move ment type material brings forth another unexpected hazardthe Customs spector bother open model containers indoor models can damaged easily unless box opened room low air circulation Take Peek Mr Inspector Ray Harlan isnt first use idea model box well-prepared curious customs spector Photo 2 clearly shows Rays plexiglas inserts very easy show contents box opening boxs weight penalty essentially same before adding windows Two other aspects indoor box design show photocareful mount ing model parts along clever packaging first insures model parts cannot drift around inside box second ailows models carried given size box Other Problems Once models packed box made visible inspectors stand better chance getting Big Meet models intact However models cannot easily removed box contest may damaged haste fly Dan Dominas box seen Photo 3 shows way hinge box parts can reached careful study photo shows fuselage/tail group mounted under wing props under other wing main part box similar arrangement serves two models Mounting Techullques Any mounting fixture indoor model parts must meet four goals First fixture must prevent model com ponent coming out holder box transit part must rotate move around holder Otherwise part may damage nearby part rub against box damage itself Sec ond mounting should minimize transmission external shocks model parts Third fixture should designed easy smooth removal model part box sticking fixture can cause ex cessive force applied model removed box sudden release holding force may cause model strike box another model best model can removed hand Finally fix ture must crush deform model way sure fuselages tail booms will retain alignment during shipmenta very tiny warp tail boom can subtly detract performance manner expected Heres Photo 4 shows Cezar Banks solved mounting accessibility problems whole side box folds down allow easy access several parts time Slotted foam rubber pads firmly hold props hubs encasing prop hooks shock transmission minim ized blades allowed support themselves hubs cannot rotate blades can stack closely together danger foam will easily release prop needed Two wings has removed held friction-fit tubes spacing identical fuselage wings can unplugged just fuselage Two fuselages fit neatly between wings tail surfaces alternating fuselages also use foam-padded fork-type supports hold firmly crushing Props mount under wings short box lid supports two complete models small space yet allows easy access removal Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/Meuser Con finued page 35 Brookenone Co,pany 127 vose Fern Rd. Peterboroogh NH 03458 Small hand taclo misc Mfgr Buwer Model Airplane Co Toner Edward J PO Son 124 Howell NJ 07731 201 363-0845 Robber power CO scale old-taner kits plans Mfgr Cal Acm no longer active See J&R Models CHE Hobblee 10900 Eastwood Ave. Inglewood CA 90304 213 674-1756 Krts classes brands Comp Modnls Kitco d-Ks Micro Blon Ridge Tisson Prnlli robber lobn Ott CPM Prodacta 722 Lennox St. vreka CA 96097916842-4075 Old-tmer kos 30 Soaring Glider $498 ppd 30 Pacific Ace Ok P30 5695 ppd Mfgr Champion Modal Products Sebmoedner George 880 Carmen Ct LaVerne CA 91750 714 599-3348 Coupe dHiver Molcihill kits Ponlb FAI robber misc robberpower Supplies Classic Era Modelpians Oraga John 356 Grand Blvd Bedford OH 44146 Robber-powered scale models 30s 12 30 spat Stahl Lindberg Schroder Storiale $1/list sample Clam James C. see Clemeraft Clemeraft Clam James PO Ban 524 Sand Springs OK 74063 VA gas kits 0km Bird tot 79 USFF Champs Coontry Soy Witch Hawk 1st 79 Nets Cot Ill record Mfgr Cleveland Model & Supply Co. 10307 Detroit Ave. Cleveland OH 44102216 961-3600 Hundreds ot plans some old some now flyrog scale aircraft 114 Model Aviation SCALE RADIO CONTROL