WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161
Edition: Model Aviation - 1983/07
Page Numbers: 22, 23, 24, 26, 40, 41, 74, 88, 133, 136
WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161
Edition: Model Aviation - 1983/07
Page Numbers: 22, 23, 24, 26, 40, 41, 74, 88, 133, 136
WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161
Edition: Model Aviation - 1983/07
Page Numbers: 22, 23, 24, 26, 40, 41, 74, 88, 133, 136
WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161
Edition: Model Aviation - 1983/07
Page Numbers: 22, 23, 24, 26, 40, 41, 74, 88, 133, 136
WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161
Edition: Model Aviation - 1983/07
Page Numbers: 22, 23, 24, 26, 40, 41, 74, 88, 133, 136
WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161
Edition: Model Aviation - 1983/07
Page Numbers: 22, 23, 24, 26, 40, 41, 74, 88, 133, 136
WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161
Edition: Model Aviation - 1983/07
Page Numbers: 22, 23, 24, 26, 40, 41, 74, 88, 133, 136
WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161
Edition: Model Aviation - 1983/07
Page Numbers: 22, 23, 24, 26, 40, 41, 74, 88, 133, 136
WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161
Edition: Model Aviation - 1983/07
Page Numbers: 22, 23, 24, 26, 40, 41, 74, 88, 133, 136
WHY IS IT ALWAYS Monday morn ing column time sit hands folded behind head listening voices dont lack material voices whis per Wakefield dont want write about Wakefields ex pect read about voices insist sharing experience see Buzzard Bombshell hot summer afternoon flight can last forever man handed box said about bringing low horizon dot several farm fields away never touched stick after pointing its nose toward home kept coming com ing coming Over cyclone fences adjacent ball field came over goal posts fly ing right us looming larger larger subliminal sonar radar pinged 100 ft 75 ft 50 ft 25 ft Turn Which way mattered decision simply too much ter alf just shattered reverie dont hear typewriter going seldom think about Wakes except some World Champs gets report ed look see boys did time us built Wakes loved fun once kidded selves thinking us could win something after much luck element wiped out inevitable rules evolution turned off glory days Wake mid-30s roughly 1950 rules quite different now did need wing area 200 squares plus minus 10 minimum weight 8 oz fuselage cross-section requirement Rubber anything needed spell 'rope~ model performance lim ited contests feasible Max imum flight time limits imposed Rubber severely limited guys ended up tubular stick models does Bob White make things pretty machined front ends lights went out sport mod elers saw photographs Airborne fine Australian magazine Some Aussies sought out Ron Warring England great man gray-head ed holding own 1952 Wake Editor Merv Buckmasters help pic tures having returned him De von Sutciffe New Zealand forwarded prints meantime Dick Kordas 1938 Gassie found basement pic drawing printed last month Voices indeed published Kordas 1939 Wakefield-winner plans Air Trails journeyed Phila delphia Dick see Megow result ing putting out kit 22 Model Aviation U lust fun Bill Winter Englands Ron Warring R oldtimer internationally respected lifetime fine designs exacting modeling books subjects 31-year-old Wakefield him Devon Sutcliffe way New Zealand Airborne magazines caption picture ex tolled Ron doyen English Free Flight cant see picture model has one-wheel retract gear hangs down just forward wing fin cutout permits pop-up stab dethermalizer appropriate motor Rons Wake would fine Electric performer Picture Peter Michel Devon Sutcliffe courtesy Airborne magazine Dick Korda left modeling fell wayside after bought Cub $5001 1949 though dabbled RC before full-scale gliding became big joy Now call tug pilot recently towed instructor pupil latter other great Chet Lanzo right stand beside Bellanca Scout late years Bellanca taken over jigs dies etc Aeroncas Scout second-cousin gentle Champ III______ IIII II I Ir r FROM AIR TRAILS APRIL 1940 THE BRITISH set international mark 33Q9 win King Peter Cup Bob Coplands Streamliner epitome efficiency beauty favored win 1939 Wakefield Cup event Korda won British black Dunlop rubber could fully wound hot sun Copland never real chancedespite 4-mm average night before modeL 1939 Wakefield Cup contest weird Set up Polk bothers New York held Teter boro Airport New Jersey ended up worlds pathetic golf course across nearby state high way English team arrived uniforms natty blue blazers think remained horrified years barbaric environment sacred cup Models other coun tries proxy-flown English fliers black Dunlop rubber sun snapped motor far short its Gene Mathis WW II bomber pilot 8-29 pilot picture taken 1948 fires up Ohlsson 60-powered FF Keil Kraft kit built covered English pilot went down during war Gene thinking RC-Assist noble bird capacity desperation lined up side stretched motor made newspaper tents shade London Times night before New Yorker Hotel processing team made honest meticulous English team members split hairs Korda shave 1/16 trailing edge wing stabwe forget come within area tape two pennies belly make weight limit Kor da wound next morning ship up 44-plus minutes Al Casano timed Kordas first flight remember clearly lie backs eyes shaded crate hooked low lift slowly worked its way up 20-odd minutes circled down low altitude No 6 series books about famous Aircraft National Air Space Mu seum Bellanca CF significant work historians modelers anyone professes love airplanes Profusely il lustrated black-and-white full-color adequately detailed three-view George Clapp its heart-throbber History abounds famous designers aircraft Tony Fokker D-VIII Trimotors Deperdussin Racer far ahead its timelike CF very few really significance changing course history CF lasting impact much same way Douglas DC-3 having per fect match its task opinion has never equalled Air trans portation US came age DC-3 DC-3 designed Bleriot Fokker Northrop fanci ful picture would equate Giuseppe Bel lanca QF Bellanca genius Famed ability create efficient load-lifters during age classics some lifted own weight Bellan cas career spans virtually entire history aviation An armada amazing unique aircraft came off board 1922 biplane Jennies Stand ards dominated scene super-effic ient monoplane CF bolt lightning flying meets day left everything else dust dark ages quickly won numerous national inter national efficiency awards tworow 10-cylinder Anzani 90 hp top 110 mph range 480 ml cruise 90 respectable initial climb 600 ftjmin Remarkably carried four passengerswith pilot cockpit aft wing William Hopson air mail pilot recalled climbing contest Tarkio MO zoomed 2000 ft two minutes 300 ft better second-place Fokker won gliding contest power off taking 5 mm 20 sec reach ground payload 500 lb once shut down row cylinders maintained horizontal flight just 35 hp Spenser perceptively relates CF skyful later Bellancas pictures book show also famous aircraft period too shown never-before-published pic turesa gold itself course usual fascinating story stepby-step pictures museum sample resurrected great boneyard sky Super craftsmen work magic book time trip CF unquestionably efficient airplane existence time its first flight wich such excellent performance todays standards little short astounding says intro Spenser sounds awed well might Frankly loved book l Winter July 1983 23 Bellanca CF Emergence Cabin Monoplane United States Jay P Spenser National Air Space Museum Washington DC 96 pages 8-3/8 x 11 $995 Big Little Museum Photos Tom Schmitt Curator worlds outstanding collections models memorabilia retired Mohawk Airlines Captain Dick Sherman has turned hobby way life beginning simply saved things brought home models others Nats ultimate goal genuine museum New England home crammed marvelous things basement attic Magazines fill 13 storage racks Some 900 plans carefully flat-filed Fantastic models everywherefrom Indoor Patternmany reassembled restored Dick pristine condition Shermans call Airplane Model Museum visitors welcome Address 28 High St Plymouth NH 03264 Phone 603 536-2359 24 Model Aviation Texan Bill Dean won CL Scale National Contest 1953 1955 1957 1958 Aeronca Duster modified Champ dowel longerons simulate tubing painted real thing Behind Focke WuIf 190 models altogether Sher mans museum Hundreds gosh dont know Two Bob Wilders Unlimited Rubber jobs 1950 attic stairwell ceiling yesterdays great CL Speed jobs wall below maybe deBolts Helmets T-shirts everythings significant Slid ing racks protect priceless plansa few magazines behind top see pictures L-R Dick Korda launching Outdoor Stick Bill Winter launching single-stick Twin Pusher Al Lewis microphone Boston early 1930s What coinci dence three made Model Aviation Hall Fame together 1978 Engine left IMP carbideyou put pellet water hooked another thermal same spot went back up came thin clouds weak sun dust-blowing breeze Dick locked Moving right along just fabu lous phone chat Dick Gosh did anyone know Dick made flight just hand winds Continued page 26 -F- Sherman holds Fulton Hungerfords fantastic Ford Trimotor Indoor Scale modeL memory serves correctly three props powered rubber motors outboard two motors inside wing hind Howard McEntees Cessna far left nose Howards Curtiss Shrikeboth 1932 issues Model Airplane News Proto Speed model wall early 1960s built Norm Drazy 14 years oldand Norm built own enginel juduuy ouus dr ror sleeping heres late CO Wrights 049 Antoinettee Nats FF Scale winner 1958 60 61 63 64 Dave Browns Phoenix VI 1975 Masters winner second Nats third World Champs Berne Switzerland K K S E WIEf 4 40 rims con structed 01 lOP qu3lity spring steel Control nuage 500k-rips Cat III 3042 0100 DO BOO 440 Ca No 306$ Sea SPRING ACTION KWIK-KLIP 7c Locks Kwik- KIip onto the glo- plug continuous positive contact No 150 w/o wIres 685 No151 wI wires6180 NICKEL PLATED SOLDER LINKS new 4-40 solder links n sent plated tar easy tOaCring Cal No 300240100 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 314 blades Ho 132 S525 KWIK-GLO Gb Plug ConnectorNo 187 piece brass5225 barrel snaps onto plug fora positive start 24fz long_ withA lugs KWIK-FILL FUEL PUMPS EICS SN SALLON SU*On SN eroe SIZE CANS IVOLUMEI No 191 OlD Fuel $1095 No 250 Gas/diesel $1195 Wi SOCKET HEAD CAP SCREWS NoSize 3092-56 x Io 310 2-56 x liz 3128-80 x1 3138-80 x1/ 3188-80 XPIz 3156-32 x1 317 6-32 x llz 3188-32 x 1 3193-32 x 1V 3208-32 x 1112 COMPLETE FOELIOC SYSTEM INCLUDES CAl FITTOIGO FUEL 100040 600 FILTER HAND OPORATOD POCuS IN AND OUT Per Plog 10 B 10 8 6 10 8 6 B 6 8 $100 per package j5 8-32 NYLON INSERT LOCK NUTS No 329lOper pkg $100 Backpressu noise levei umn varied adiusting muffling spring out fits engine 09 80 N i-WAY SOCKET WRENCH Perfect gb-plugsNo 251 prop nuts nylon bolts$2 95 7/161/2 7 I-2O x 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made lit 3/16 allen wrench outside hex sized tor glo plug wrench CatNo 18286100 FLAT & SPLIT WASHERS NoSize 321No 2 FLAT WASHER20 322No 2 SPLIT WASHER20 323No 8 FLAT WASHER20 328No 8 SPLIT WASHER20 325No 6 FLAT WASHER20 325No SPLIT WASHER20 327No FLAT WASHER20 328No SPLIT WASHER20 $50 Per Package Nm 330 331 2-56 KWIK & SOLDER LINK SPRING KEEPERS 8-80 KWIK & SOLDER LINK SPRING KEEPERS Iperpkg$50 4~sr MO~ 480 Bonner Road Wartoorida IttinoiS 60084 USA rubber motor busted motor night before tied thread 12 places would guess pulled out nose block mildly stretch rubber hand-winds didnt seem know timed flight remembers picture two timers backs badly sunburned through shirt Also says drove circles following model retrieved just quarter-mile away remembered came down midflight thermalled twice Said Dick dryly proved model worth two cents Possibly worlds famous model ever Dicks ship inspired Gordon Lights Wakefield winner early 1930s Gordon retired still has winning Wake designed fit packing box sent Gordon proxy-flew still-earlier Moffett model some guy Down Un der size box set wing span Gordons 1935 Wakefield winner resurrected August 1976 issue Model Aviation Gordons day everyone used hollow boxlike mo tor sticks wound outside crate right removable motor stick Gordons model won proxy-flown J E Pelly-Fry--who still writes us Dick Korda remarks could possibly get enough downthrust thought lifting stab Time does funny things think Gordon Light lifting stab slight undercamber Besides lifting stabs commonplace werent Earlier apparently Dick didnt have lifting stab 1937 Air Trails pub lished prior winner Korda model under title 54 Minutes As say can look up Id bet Dick already using lifting stab So probably remembering one-de sign continuity Dick became pilot full-size sailplanes models fell wayside did some RC Now doesnt much sailplaning remains call tow pilot Recently towed two-placeran instructor people student named Chet Lanzo Chet world-famous Rubber jobs may know true pioneers RCalong Ross Hull developed first escapement system early mid 1930s young Good brothers followed heels late Clin ton B DeSoto Hull electro cuted early TV experiment des cribed RC work QST magazine organ American Radio Relay League Lanzo far know first perhaps man fly Indoor microfilm-covered job Radio Con troL didnt have airborne pack Continued page 40 26 Model Aviation WITH DUBRU IRuLhlJCTS INCORPORATED No235 SIS DU BRO PRODUCTS INC L F Randolph D POVflD LtfiDIfl tNfS K Round leading edges have defi nite appeal because ad ditional gluing area afforded ribs eliminate need round after wing construc tion complete Hardwood dow els too heavy soda straws much too weak pictures show make balsa dowels just right job Fun/Winter Continued pace 26 just short piece thin wire attached rudder Indoor site Kansas City probably 1948 Olathe Nats blasted 100watt transmitter wire bent slightly response heated slowflying job would steer away walls laughed put RC Towline Glider slightly later Olathe Natsuntil flew caused bliz zard protests Among fantasies foolishly revealed earlier column 8-ft Korda either K&B 19 appropriate ly geared belt-reduction 15 electric motor paralyzed size Quarter Scale barn laid out paper Suddenly unpredictable Don Srull cranked out scaled-up Comet Sparky plans article issue editor subsequently has laid out big Simmers Jabberwock also geared Leisure 05 others has pushed own gear systems ratios high 51 15-in-dia lO-in-pitch folding fans blind man can see bottom line old Rubber jobs probably finest efficient configurations ever built Ill bet RC Pattern ffiers understand Wanings Wake spent last night surrounded Frank Zaics yearbooks now Tues day praise Lord looking mighty old-rule Wakes Gosh what beautiful machines Half-up Wakes about 5- 6-ft spans superb Elec trics reduction-drive 15s 19 glow sleek super-gliding sport jobs could superior Old-Ti mer Gassies often awkward attempts handling power Wakes allow shoot ideal No bet ter beautiful aerodynamically speaking Bob Coplands prewar Wake England has ever de signed see drawing People still recall Coplands Stream liner awe 1939 Wakefield Cup contest expected win ner night before contest day av eraged easy 4 mm Because thermals werent factor England US British jobs long motor runs Copland job its perfectly streamlined fuselage cir cular cross section plug-in tapered wings epitome beauty efficiency failure British black rubberwe used brown rubber dayssabotaged model won over England Continent Theres chance Coplands ship still exists clues have fed Hurst Bowers AMA Museum coordina tor reposed Air Trails fice after Paul Plecan drew plans April 1940 issue crushed falling book brought tears Frank Zaics eyeswho re 40 Model Aviation 1 Fold three-inch square 1 00-grit sandpaper half Staple form channel about twice wide balsa strip thick 2 Rotate balsa strip between fingers move through sandpaper same time along full length strip round corners 3 Coat back full sheet 100-grit sandpaper rubber cement Attach flat smooth piece plywood Masonite workbench built flew Chicago Nats Dick Sherman reports Chet Lanzo swapped models Copland both team mem bers Dick says Chet still has ever writer suspects earlier Copland creationgenerally similar box fuselage cross section Folks discovering won ders 09-l 0-powered soaring planes tail-dragger gear reinventing wheeL Dozens hundreds mag nificent designs waiting touch genius didnt want write about Wakes voices made spring young mans fancy turns servos batteries late March written first flying session year took place same day nationally could called National Demolition Derby Day local guys 19 wipeouts first good Sunday last year Just because everything worked flaw lessly usually last winters chill winds intruded doesnt mean can take things granted new season Sneaky battery cells defect enemy Servo pots get filthy occasionally pot contacts wipers too weary bother Ignored en gines give up ghostusually right after lift-off Rust flakes grind up ball bearings Preventive maintenance 11th commandment Hopefully youve made New Years resolution some thing about annoying erratic things turned last years flying battle wits Being incurable procrastinator Lower Slobovian Air Force rag-tag vintage darn near thing incompatible have trying months get something shape summer skirmishing AU batter ies charged 30 45 days now charge recycle about go off flying battle discovered Old-Timer has flying just three good cells much servo use got away six years have flying again havent cracked-up due equipment 1000 flights Dumb luck havent piled-in due batteries must doing something right As hacker guarantee cannot operate indefinitely some kind problem unless have cycler chargercrack-ups certain death taxes otherwise happen have Ace Digipace Taylor former provides digital readout minutes latter has knobs click indicate capacity mAh cycler runs-down batteries under appropriate load safe minimum voltage automatically goes charge cycler warns tiring pack betrays bad cells example Continued page 74 July 1983 41 4 Use wide sanding block roll strip between block sandpaper figure-eight motion along full strip length 5 just few passes strip will round true technique has mainstay Indoor fliers produce round balsa dowels used wing mounts u rIupeper wreppea arouna oowei usea gang-sand noicnes ribs same time gives perfect match leading edge ribs 7 The round leading edge installed using white glue iron-on technique described March 1983 MA June 1982 MAN 1/16 balsa sheet can ironed completely around leading edge r Fun/Winter Mallory Models QUARTER SCALE LASER 200 Sport Scale AMA Scale Pattern Fun Fly Specifications 735 Inch Wing Span ** 1000 Sq Wing Area 56 Inch Length Kit 90170 LbsP4&104Spafl 61 Engine Gear Drive 9030 Engine Straight Drive 4 Channel Radio Required Price $22995 plus shipping Kit Endorsed Leo Loudenslager World Aerobatic Champion Mallory Models PO Box 207 Falls Church VA 22046 703 360-3424 Eve Attn Bill Hinnant Kit Includes Epoxy Glass Fuselage Two Alum Spars 606 1-T6 Spar Locations Molded Fuselage Two Piece Foam Wing Spar Locations Cut Out Foam Wing Alignment Tubes Spars Wing Molded Hatch Bottom Fuselage 1 Piece Alum 6061-T6 Landing Gear Epoxy Glass Wheel Pants New Tail Design Tinted Canopy Scale Decah Full Size Scale Drawings Flying Wires Three View Drawing HEAD LOCK NEW STANDARrI CONNECTORS FOR GLOW PLUG IUSCHECK THESE FEATURES I1ush twist its locked I$ 3752 Push twist its off 3Will Icome f under heavyI favoriteengin vibration 4WIII notI Ihobby dealer ~ ahorteat SPos stave spring y Tools Precision Sanding ALUMINUM EXTRUSION SANDING BLOCKADJUSTABLE TENSION use RUFF-STUFF710HAND BELT SANDER Self adhesive sand paperfIRMLY HOLDS PAPER Makes Sanding SmallFOR EASIER SANDING Areas Snap*210 Wont Wear Out Padded flats curves Handy Use Handy Hold lunch *225 Easy Use flinch *335axIss strip $135 APPLIED DESIGN CORPAdd2O% IOIOUSUIOO 738 PFNN STREET EL SEGUNDO CA 90245 torpostage Continued page 41 Digipace set test mode instantly switches over charge have trouble guys read individual cells thats pain dont trust because bad apple another may far behind Its smart have well-matched cells have pack now reads say 50 min utes well over 90 new what sense adding cell can go 90 others poop-out 50 pay enough radio plane systems false economies senseless Battery packs arent expensive have Sanyo packs after five years still read-out values almost equal new-cell ratings discard pack know guys sneak few ffights 30 45 mm capacity scares death 500 pack reads under 400 mAh under 60 minutes throw out probably years old anyway Sometimes after many-flight session cycle batteries get homejust con firm what flying time really left see readings little 15 way up 45 buddy 3 occa sionally better 60 latter Old-Timers get know way roughly flights real ly could have madeand its smarter quit youre ahead often should cycle Some guys quite frequently saying has 1000 cycles safely available guess mean charging times Others recommend different times might once month several times season lower readings have bewareand forces recycle often feel pluse another argument tossing out tiring packs cycle before seasons first flights late spring perhaps twice during summer once coming fall Remember am expert am luckymaybe will rub off have no time thorough servo maintenance servos practically shout have ailment chatter quiver assuming dont have bad hinging binding pushrods whatever another sub ject youd better something now Send off service fix know find smart friend buy new ones servos can bought inexpensively Youll see brands field ask guys using well pleased own 1000 flights count ing jillions old days have dirty-pot problemthat Kadets ailerons usually fly leisurely Continued page 88 74 Model Aviation Joe Solko & Laser 200 Scale Masters 1982 NOW opportunity own quality built American made engine An RJL Engine fastest growing manufacturer American made model engines RJL Industries Send free catalog RJL Engines Sizes 19 thru 61 KMGI RIG Schnuerle ported 61 provides easy starting high performance longevity FEATURES INCLUDE O14IO Schnuerie Ports Boost Port Double Bali Bearings Forged Alloy Piston & Con Rod Bushed Connecting RodSuggested Retail 0-ring Sealed Back cover 995 16 HP 15500 RPMIncluding Muffler investment Cast CrRnkcase MADE IN AMERICA AMERICAN TECHNOLOGY RJL Industries os 88640 Pasadena CA 91107Phone 213 359-0016 Eq. 88 Model Aviation Fun/Winter Continued page 74 three channels explains lack pot problems have plagued malfunctioning servos cluding two suddenly decided swing end-to-end neutralizing engine occasion luck again Merlin finds lost contact/wiper pressure rebends bad servo can quit again after few flights Get new wipers problem engine servos asked Cliff Weirick about thisexpect ing him say dumb question deserves dumb answer have known Cliff long time operated Proportional Control Systems close Phil Kraft years AMA president now general manager Airtronics carrying out Lee Renauds program came within point perfect score win Pattern Nats has won Py lon Formula Natsand much believe problem throttle servos caused cruising around lowspeed setting slightly above idle Generally low frequency high excursion vibration takes place range Cliff went after period time causes some kind film between element wiper have seen number times cycled frequently doesnt seem happen Sloppy trims usually mechanical type opposed electrical Good tight servos will respond electrical trims mechanical suspected tlit heavy pressure screwdriver os 91e uiw holds disc arm tQ thie4Iiift might possibly distot wiper ti o ruad driver used put hhgbpfuue screw Yu qgite correct uwuigg th too Much pressure 4utpv* wft aa cause center wIpr tete com psstsure author neutral ooanss tqutle primariWjvu hat center wiper short aud w81 tolerate bending thohtwwt wiper will always hold up w*els Cliff explains tight lp screws least much pessible Some servos worse others Generally expensive ones have stops shafts isolated pots no pressure can applied pot wipers Did hear bell ring POWR Thats name six 20cc bottles thin blue liquid just arrived out blue said work wonders engines Being George Aldrich reader read March Model Airplane News about miracle stuff supposed treat Continuedon page 133 T-6 TEXANI SNJ 101 WI.. C Sn C Ingin. GIANT RIC *los1500 Sq *owIIngCourplete Kit *neledod plus * World War isnt uk# w EINDECKW Uitt Please add $2 post5ge/handqg NY restdapis d 7/u% $3495 ge PIwood Construction 84 5 45 Engines M0U WI4NIE#t N k%k4produo5oItttts ol old laooriteo Youll like IS ri gamersotlun lit discut parts Both heve ISte Sf sg1 tis bush build uupsrb tlightl Pleuee udd $2 postage/hanflino Fun/Winter Continued oaae 88 metallurgy engine reduced friction longer wear better cooling higher rpm sorts good stuff resolved write George en gines would bless small favors George beat punch First came letter J L Ruby Micro lon Inc PO Box 1529 San Marcos TX 78666 along fascinating litera ture came box 20cc bot tles finally letter George telling uses Micro lon sending carey package CL-l 00 POWR call models said George Its well-known full-size aircraft fieldads Tradea plane list en gine Microloned X hours etc Quadra will take three little bot tles Just put quart fuel gas run fly glow dribble venturi running single 20cc bottle will 60 According instructions POWR contains cleaning complex dis solves carbon varnish prepares metal pore structure forma tion film burnishing impregna tion modified resin one-time treatment permanent film self-healing lubricity film such further wear very unlikely engine should run smoother pro duce power respon sive Microlon becomes integral part metal properly treated engine bearing surfaces become Mi crolon Microlon instead metaL youd want wished remove micro-thin film youd have machine away impreg nated metaL wide line Microlon products extensively used both automotive aviation fields Smelling flowers Letters filled clever how-to tricks kooky adven tures humor sentiment joy nostalgia provoking thoughts endless descrip tions flying machines Hey Smitty flying-wing gliders whats last name world awaits Also John Cantoment FL sent pictures interesting models last name please teenager Bloomington IN during Zipper blitz Gene Mathis begins Author 1939 Nats well over 700 Zippers competed days Carl Goldberg came high school convocation gave lecture illustrating flying ROG around auditorium night visited us special meeting club Bloomington Torque Twisters still cringe name smitten guru chap named Kenny Baldridge now emerged blinking basement mys terious apparatus Guff aircraft mighty Brown D nose Author Walt Good highly success ful FF Guff design par ents Gene goes viewed model building flying amused tolerance except thought old Kenny bit much perhaps wacko having bad influence us TDY England 1948 Gene recalls navigator bought Keil-Kraft kit built airplane picture didnt get covered brought home bomb-bay B-29 Later killed mission Yalu Korea widow gave unfinished aircraft fin ished picture shows flight engineer firing up Ohisson 60 its maiden flight still have expect RC-Assist itwhen trifocals trembling thumbs finally put stop making like fighter pilot Pattern machine Which aint far away Often minds eye reruns picture salad days Zipper red fuse lage yellow wings circling ther mal sunny day southern Indiana $795 Sky Chief having retired its labor going higher higher drifting downwind over wooded hillsout boondocks no roads young man sweating panting trying stay un der foot knowing heart goner thinking himself through some magic could reach out give some down-elevator Its pity buddies Mono Kote foam seven-channel genera tion cannot savor golden days Cahill Korda other giants nor experience genuine adventure aeromodeling Genes flight engineer went pi lots school killed B-47 rolled-in shortly after takeoff Nothing has changed Kenny Baldridges emerging shops blink ing mysterious apparatus Electrics confusing glow-engine RC theres spectrum trainers learn ing fly fly better Electric need different trainer enables operate system fair cost damage through nocent error flying Electric first time raw begin ner Probably know flyso learning fly isnt problem guys have big head start technology rapid evolution stresses ways getting ultimate per formance hackers need basics Mo tor numbers once roughly equat ed glow engine displacement mean nothing anymore An 05 electric motor may equate Max 10 15 049 need direct drive turning small prop glow engine rpm reduction drive turn big high-pitched prop lower rpm ways go whats best Basically thats air plane thats cinch fly something relatively slow bit floaterso re liable can master system operation repeated flights good entry point 6-ft glider 05 nose may require downthrust sometimes much 10 degrees avoid power mushing Gentle Lady easiest 05 will fly fine direct drive ask Pattern-wind motor about 7-4 geared such 21/21 will need roughly 11-7 prop will turn slowly give thrust 381 geared system some go up 51 can turn folding prop big 15-in diameter 10-in pitch Note pitch goes higher lower rpm direct drive fine lieve must have fuse want protection motor battery system must have shut-off well Ive done lot moanin dont usually give fuse different motors require different values 05 32V 20-25ampere fuse Radio Shack has fuse holder plug-in fuses colored designate capacity yellow case have solder holder wiring harness comes motor well charging jack suit installation shut-off microswitch attached side motor servo three channels servo tape retard ing transmitter stick causes servo arm pushrod whatever bump switch two channels stant full-down bumps switch geared 05 supposedly best wing area 600 sq Srulls scaled-up Sparky has 460 sq 64-in span new parasol has 5 15 squares 56-in span have heard much 700 squares extreme overwhelming advantage powered glider its ability perform size motor either direct drive reduction drive op tion three distinct families props wide spectrum flight performance characteristics available Usual ly would have build special air planes suit other motor types direct drive geared insstance direct drive 250 300 sq m recommended roughly half area recommended reduction-drive crate 05 little Goldberg Ranger 42 240 squares Flite line Megowcoupe 290 squares well vastly higher wing loadings faster far power whereas bigger jobs slower glide far betterbut get up 325 sq Clarence Haughts Continued page 136 July 1983 133 Kraft RIC Electronics AUTHORIZED WARRANTY T5 SERVICE Summer Special Working non-working systems components checked & re paired Servos stripped cleaned & lubed Test report submitted Price basis 4-7 channel system 4 servos Parts Shipping extra$2975 2-3 ch system w12 servos 52475 MILT ERB New Frequency Conversion System$2500 50% ott w/ Pre-season Check-Up Special Tests will included proper operation new frequencies Tx tests will include spectrum analysis Px will checked proper band width Send SASE info new frequencies ALSO AUTHORIZED SERWCE FOR 1685 Beckwith Dr Hudson OH 44236216 655-2278 Fun/Winter Continued page 133 Re-Volt-er May Model Aviation excellent all-round choice direct drive 05 7-3 50-in span 32 oz its loading 142 oz per sq ft area can highly recommend article Harrison Mannel May 1983 Fly ing Models pages 52-53 After three years testing motor battery gli der combinations wrote have found what feel ultimate combi nation electric-powered sailpianes him Top Elite Metrick 05 short article jammed meaningful simple info fine briefing getting started Mitch Poling Model Builder lets hang out MB has full Electrics lately Jim Zarembski has some fine stuff RC Modeler Join SEAM $10 receive newsletterthey speak duffer language Society Electric Aircraft Modelers 11632 Flamingo Dr Garden Grove CA 92644 Bob Kopski will soon have some primer-type articles Model Aviationhe has saved neck occasions Im little afraid mentioned sev eral letters Pattern-wind motor reduction-drive systems hotwind motor direct drive Thats backwards Its just other way around Over 50 years modeling taught thousands know toothat exacting science full-scale aerody namics practically worthless ap plied models build ounces pounds build thousands tons pounds models see dra matic changes size weight speedand Scale Effect makes shambles math Airflow nothing like full-scale know very little what does over small models wing loading makes small Rub ber job lump lead results ghostship floater big Gassie Identical models slightly heavier fly entirely different champ other dogwith same airfoil scale possibilities includes literally thousands variations reminds us Paul Gar ber Curator Emeritus National Air Space Museum Smithson ian Instution Paul boy saw Wrights fly world expert kites makes Washington newspapers during annual Kite Fly Washington Monument grounds dont know much about drag ons comments sure know fly great Bill Winter 4426 Altura Ct Fairfax VA 22030 Editor Bill asks us advise readers write columniststo Bill Winter others AMA HQ MA editorial offices matterto always put full name address letter just envelope Envelopes become detached full name address letter itself response proper credit magazine may impos sible Also plead take easy Bill Winter miscellaneous questions keep sending him good material columns Bill being inundated questions really should addressed other cate gory columnists addresses end columns response needed please include pre-addressed stamped envelopeCarl Wheeley Safety/Preston Continued oaoe 16 2 Check pushrods secure 3 Check receiver battery secure 4 Check loose items/wires could foul servo arms/pushrods 5 Check fuel leaks S Nick Zirobs F4U CORSAIR 2 4 Cu size Engines Fiberglass Faselage & Coleg acailable design 0/A NT RIC SCALE PLAN DESIGNS AT-S TEXAN24 I101 Spon$2700pp USA FOKKRR DR-i27 163 Tripe$2500pp USA FOP REARCAT2/ 106 Spec$2700pp USA CURTISS P402/ 194 Spon$2700pp USA F4U CORSAIR2 193 Spec$2700pp USA Fiberglass Cowlings & Canopies ae available also Send stamp tar detailed brochares oar Giant Scale Accessories Oar Plans sent Postpaid inithe ISa UbAl 136 Model Aviation ir 4v span 56 Channels 2 -3 Wing Area 690 sq Engine 19- 35 i dSS lopper complete 1/6 scale H/C model kit designed assemblelook fly like famous WeedhopperrM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE 1161473 PHONE 309/426-2161