QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. 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Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation
Edition: Model Aviation - 1983/08
Page Numbers: 20, 21, 22, 24, 26, 28, 76, 84, 85, 92
QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. TOe LbECTIIC MOTOR10 Master Jig 400* Whats I- oryoLuI judge Master Jig 400 multi-purpose tool can help Radio installation gine installation 00 access fiberglassing paint applying plastic film. much much takes skill takes time Master Jig 400 versatile tool maximize skill Reduce time Add enjoyment working models Perfect planes just dont happen judge confident Master Jig 400 backing money-back guarantee** cant beat Mostly because cant beat Master Jig 400 Order yours right now**30 Days Limited Time Offer FREE BROCHURE Write call free brochure tells DEALER INQUIRIES INVITED TIDE DISTRIBUTORS INC PO Box 317/Dept MAV 83 Minto ND 58261 701 248-3001 Days 701 352-2667 Evenings Master Jig priced $12995 plus $5 postage handling Please send _______________ Master Jigs Enclosed find check $ Card #__________________________ Exp Date__________ Name Address City State Zip Phone 3ig Patent Pendng v33][b263234601219960]] MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation
Edition: Model Aviation - 1983/08
Page Numbers: 20, 21, 22, 24, 26, 28, 76, 84, 85, 92
QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. TOe LbECTIIC MOTOR10 Master Jig 400* Whats I- oryoLuI judge Master Jig 400 multi-purpose tool can help Radio installation gine installation 00 access fiberglassing paint applying plastic film. much much takes skill takes time Master Jig 400 versatile tool maximize skill Reduce time Add enjoyment working models Perfect planes just dont happen judge confident Master Jig 400 backing money-back guarantee** cant beat Mostly because cant beat Master Jig 400 Order yours right now**30 Days Limited Time Offer FREE BROCHURE Write call free brochure tells DEALER INQUIRIES INVITED TIDE DISTRIBUTORS INC PO Box 317/Dept MAV 83 Minto ND 58261 701 248-3001 Days 701 352-2667 Evenings Master Jig priced $12995 plus $5 postage handling Please send _______________ Master Jigs Enclosed find check $ Card #__________________________ Exp Date__________ Name Address City State Zip Phone 3ig Patent Pendng v33][b263234601219960]] MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation
Edition: Model Aviation - 1983/08
Page Numbers: 20, 21, 22, 24, 26, 28, 76, 84, 85, 92
QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. TOe LbECTIIC MOTOR10 Master Jig 400* Whats I- oryoLuI judge Master Jig 400 multi-purpose tool can help Radio installation gine installation 00 access fiberglassing paint applying plastic film. much much takes skill takes time Master Jig 400 versatile tool maximize skill Reduce time Add enjoyment working models Perfect planes just dont happen judge confident Master Jig 400 backing money-back guarantee** cant beat Mostly because cant beat Master Jig 400 Order yours right now**30 Days Limited Time Offer FREE BROCHURE Write call free brochure tells DEALER INQUIRIES INVITED TIDE DISTRIBUTORS INC PO Box 317/Dept MAV 83 Minto ND 58261 701 248-3001 Days 701 352-2667 Evenings Master Jig priced $12995 plus $5 postage handling Please send _______________ Master Jigs Enclosed find check $ Card #__________________________ Exp Date__________ Name Address City State Zip Phone 3ig Patent Pendng v33][b263234601219960]] MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation
Edition: Model Aviation - 1983/08
Page Numbers: 20, 21, 22, 24, 26, 28, 76, 84, 85, 92
QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. TOe LbECTIIC MOTOR10 Master Jig 400* Whats I- oryoLuI judge Master Jig 400 multi-purpose tool can help Radio installation gine installation 00 access fiberglassing paint applying plastic film. much much takes skill takes time Master Jig 400 versatile tool maximize skill Reduce time Add enjoyment working models Perfect planes just dont happen judge confident Master Jig 400 backing money-back guarantee** cant beat Mostly because cant beat Master Jig 400 Order yours right now**30 Days Limited Time Offer FREE BROCHURE Write call free brochure tells DEALER INQUIRIES INVITED TIDE DISTRIBUTORS INC PO Box 317/Dept MAV 83 Minto ND 58261 701 248-3001 Days 701 352-2667 Evenings Master Jig priced $12995 plus $5 postage handling Please send _______________ Master Jigs Enclosed find check $ Card #__________________________ Exp Date__________ Name Address City State Zip Phone 3ig Patent Pendng v33][b263234601219960]] MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation
Edition: Model Aviation - 1983/08
Page Numbers: 20, 21, 22, 24, 26, 28, 76, 84, 85, 92
QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. TOe LbECTIIC MOTOR10 Master Jig 400* Whats I- oryoLuI judge Master Jig 400 multi-purpose tool can help Radio installation gine installation 00 access fiberglassing paint applying plastic film. much much takes skill takes time Master Jig 400 versatile tool maximize skill Reduce time Add enjoyment working models Perfect planes just dont happen judge confident Master Jig 400 backing money-back guarantee** cant beat Mostly because cant beat Master Jig 400 Order yours right now**30 Days Limited Time Offer FREE BROCHURE Write call free brochure tells DEALER INQUIRIES INVITED TIDE DISTRIBUTORS INC PO Box 317/Dept MAV 83 Minto ND 58261 701 248-3001 Days 701 352-2667 Evenings Master Jig priced $12995 plus $5 postage handling Please send _______________ Master Jigs Enclosed find check $ Card #__________________________ Exp Date__________ Name Address City State Zip Phone 3ig Patent Pendng v33][b263234601219960]] MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation
Edition: Model Aviation - 1983/08
Page Numbers: 20, 21, 22, 24, 26, 28, 76, 84, 85, 92
QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. TOe LbECTIIC MOTOR10 Master Jig 400* Whats I- oryoLuI judge Master Jig 400 multi-purpose tool can help Radio installation gine installation 00 access fiberglassing paint applying plastic film. much much takes skill takes time Master Jig 400 versatile tool maximize skill Reduce time Add enjoyment working models Perfect planes just dont happen judge confident Master Jig 400 backing money-back guarantee** cant beat Mostly because cant beat Master Jig 400 Order yours right now**30 Days Limited Time Offer FREE BROCHURE Write call free brochure tells DEALER INQUIRIES INVITED TIDE DISTRIBUTORS INC PO Box 317/Dept MAV 83 Minto ND 58261 701 248-3001 Days 701 352-2667 Evenings Master Jig priced $12995 plus $5 postage handling Please send _______________ Master Jigs Enclosed find check $ Card #__________________________ Exp Date__________ Name Address City State Zip Phone 3ig Patent Pendng v33][b263234601219960]] MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation
Edition: Model Aviation - 1983/08
Page Numbers: 20, 21, 22, 24, 26, 28, 76, 84, 85, 92
QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. TOe LbECTIIC MOTOR10 Master Jig 400* Whats I- oryoLuI judge Master Jig 400 multi-purpose tool can help Radio installation gine installation 00 access fiberglassing paint applying plastic film. much much takes skill takes time Master Jig 400 versatile tool maximize skill Reduce time Add enjoyment working models Perfect planes just dont happen judge confident Master Jig 400 backing money-back guarantee** cant beat Mostly because cant beat Master Jig 400 Order yours right now**30 Days Limited Time Offer FREE BROCHURE Write call free brochure tells DEALER INQUIRIES INVITED TIDE DISTRIBUTORS INC PO Box 317/Dept MAV 83 Minto ND 58261 701 248-3001 Days 701 352-2667 Evenings Master Jig priced $12995 plus $5 postage handling Please send _______________ Master Jigs Enclosed find check $ Card #__________________________ Exp Date__________ Name Address City State Zip Phone 3ig Patent Pendng v33][b263234601219960]] MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation
Edition: Model Aviation - 1983/08
Page Numbers: 20, 21, 22, 24, 26, 28, 76, 84, 85, 92
QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. TOe LbECTIIC MOTOR10 Master Jig 400* Whats I- oryoLuI judge Master Jig 400 multi-purpose tool can help Radio installation gine installation 00 access fiberglassing paint applying plastic film. much much takes skill takes time Master Jig 400 versatile tool maximize skill Reduce time Add enjoyment working models Perfect planes just dont happen judge confident Master Jig 400 backing money-back guarantee** cant beat Mostly because cant beat Master Jig 400 Order yours right now**30 Days Limited Time Offer FREE BROCHURE Write call free brochure tells DEALER INQUIRIES INVITED TIDE DISTRIBUTORS INC PO Box 317/Dept MAV 83 Minto ND 58261 701 248-3001 Days 701 352-2667 Evenings Master Jig priced $12995 plus $5 postage handling Please send _______________ Master Jigs Enclosed find check $ Card #__________________________ Exp Date__________ Name Address City State Zip Phone 3ig Patent Pendng v33][b263234601219960]] MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation
Edition: Model Aviation - 1983/08
Page Numbers: 20, 21, 22, 24, 26, 28, 76, 84, 85, 92
QUESTION What future Ra dio Control What lies beyond prolif eration sticks knobs buttons switches kookey levers Only Arthur Rubenstein could manage such stuff gone am playerpiano man cant predict future basis present technology Prophecy game one-eyed jacks jokers wild cards Holiywood flick just before war depict ed future imaginative machinery ended up huge cannon shoot man moon Some predic tion Jules Verne fictionalized moon cannon half-century before have gyros help steer Helicop ters keep wings level need ton mind take over approaches plane will always touch down perfectly postage stamp An automatic pilot Too simple self-programmable auto pilot does absolutely everything Think stunt crate does pattern Maybe someday shall import Madagascar $4999 non-think ing mans black box must al ways black about red-white-and blue Will cope mid-airs walnut-sized on-board radar Some wiseguy would drop chaff Ken Willard could introduce Stealth design need look back see 1983 milestone nostalgia wed re fer March 1976 MA article George V Sosic about Nicolai Tesla probably wildest electrical genius ever lived Old Nicolai alternating current long-dis tance power transmission trying light cities DC current prime mover waterdriven turbine power plant foot Niagara Falls Tesla wanted harness lightning also create resonant vibra tions through earth focused point opposite side globe turned experimental apparatus out West drew much electricity nearby city went blotto annoyed populace reined him m knows might have shaken sphere apart can understand Tesla contemporary Edison Marconi realize early 1900s RCer demonstrated remote-controlled model submarines New York City scientific show Youll find schematics MA back issue Thats nostalgia happened before born Experimenters toyed RC tween two Great Wars few Un known RC Soldiers well before WW Significantly early motor-driven gear-trains turn rudder tab would RAL LAYOUT WEIGHTN~TWO HOOD RECEIVERS IN RACE DROWN R ENOIRC RECEIVING WDCHICONPLETE -RITA TWO CONTROLHROSIO5It 7*0 HECTIOLK RElAYS Er.1400 R HANDS RADIO RE EVER BATTER tS7007 STIQE EUSELAE OLD NIT -ToroL ROOD EDJIP7JL7SOOtdr~I~-5P0NE 00830W SHIP MINUS RADIOA LOS 30010 EDVWENDUBSC OR BRACE ACROSS RLDSOOTALEITISRHREI kMP MESLREO CR oOSTGC CR0 ELI RTA / VR RANTS OLO /DOO NO ES 0010 SD RI ORES TasoN WOTDER7I ~ WE 0 AR[SRXRT ORES TO RIOT CO DUD C ATOD HU1D2N CoNCRDIP100 1517 BECOAN Sli ELECRT0N ELEVATA 80074 BATTERIES 1 WRONG RLRREN BaND 20 Model Aviation U lust fun Bill Winter prewar Chicago Nats Dick Weber congratulates Walt Good Frank Nekimken left Contest Director 1947 Nats Minneapolis Bill Good ham radio operator holds transmitter control box operated two receivers 50 MHz other 56 MHz Three escapements allowed choice rudder/engine rudder/elevator decision being made according receiver working better Thats elevator wasnt used wins Behind transmitter power supply motorgenerator atop auto battery ran con tinuously convert 6V higher figure transmission sketches below show some key points early Good brothers system First flown 1937 Guff also com peted postwar Nats Its now National Air Museum ARRANGEMENT O PARTS IN RECEIVER ANTENNA E WIBE 4..BFC HOOT BALSA OILOILIT.-LAROE JOTORE IS MOUNTED INVERTED APTER BASE 7RAS HEEN REMOVED Cynde Waddell Truant converted electric power second Jr FF sister Kim just behind third kids named models McDermoth Volts honor designer all-sheet-balsa profile-fuselage FF easy build flies great Mitch Polings electric-powered FF design named Easy Mitch says Winters recent comments about Dakotas Sioux inspired him junk beginners project new KaIm back book electric modeling come up sheet/stick profile Its simple sturdy has clipped wing isnt apt leave ball field Mitch scared himself longer wing model departed thermal come down edge swim ming pool some club Mitch says likes Bills thought fun important performance Has Astro 02 power constructs two five hours Mitch highly recommends both Truant Easy FF local parks eventually evolve modern servo modern RC founded escapement spite infuriating limitations gave fast enough re sponse make control practical Although Good brothers made impressive flights during prewar Detroit Chicago National Contests model ers concluded soon RC job made its first modest turn doomed No RC job could recover resulting earth-smashing spirals Since fine-looking models flown teams Free Flighters hams radios worked perfectly Con trol something else time servo ground slowly say right rud der took eternity grind back opposite rudder before crate went berserk Triggering signals another ball game late Joe Raspante before war flew gigantic Buccaneer telephone-dialing system What could simpler just dialed digit What got something else Until Fifties watched Joe make attempts crate always flew away Joe dialed furiously ship re sponded Joe riding Joe Kool bull Sal Taibi man could launch Joes monster Sals teclmique grasp landing gear two hands hold crate overhead sprint down fieldfar enough kill August 1983 21 9 six pictures Astro Electric Champs California Mitch Poling supplying info pic Larry Jolly con trolling EH-1 Skylark sold Condor Hobbies said fly much like Cricket Larry walked dog did three circuits field 30 80 ft hovered walked back pits flies 2 mm eight sub-C Sanyos two 05s Also made flight power cord 1 2V bar battery Electric Control Line models Black Sheep Squadronevery thing foldingwing Corsair DH-4 bipe Guillow kits powered Astro 02s Fun-flying guys includes carrier landings gymjust thing winter flying pic Woody Woodward others group Mitch Poling subjects found greatest personal interest Tony Naccaratos /4-scale Cub extensively modified Sig kit weigh 10 lb 21 reduction Astro Cobalt 40 20 sub-C cells turns 16-8 Top Flite prop Realistic takeoff flight turned Mitch much plans similar Taylorcraft floatal Mitch flies full-size Highlight meet Mitch Jim McDermoths Truant sport FF design May 1983 Model Aviation converted glow 02 electric little gem says Kim Cynde Waddell blast Kims got perfect thermal maxed glided over cars perfect pavement landingto spectator applause What some FFers dont realize heavy battery pack isnt needed has two pen-cells Astro 02 charged 6V lantern battery Flies Top-Flite 5A-4 prop w 05 seconD 0123456 inches 0 WHIPPER SNAPPER POP STICK Nostalgia Corner ROG appeared Pop ular Aviation magazine predecessor Flying magazine mid-20s Joe Ott confesses being Pop Stick 1/32 sheet wing tail climbs anywhere 75 150 ft flies up 45 sec Fuselage 1/8 x 34 Power 6-in prop three strands 1/32 x 1/8 rubber Fuselage length 12 wingspan 15 well-conditioned Nor dic flieruntil flying speed attained would let go wheels Chicago Sal suddenly disappeared Buc sailed Sal vanished hidden drainage ditch escapement pushed button closed switch voila instant rudder Until about 1950 escape ment rudder-only crates flew well Continued page 24 big sport/stunt model designed flown within two weeks Norm Rosenstock tail-dragger 155 cu Moki turning 16-10 weighs 11 lb 12 Ah battery supply D-ceIl on-board ignition does fly Like scalded cat Its capable AMA pattern vertical out-of-sight Norms hot-shot Pattern friend keeps begging fly expect Norm eventually will give Sounds like fun METHOD OF ACTUATING IUDDE TAB Winters up-scaled Krackerjac early 1960s 15-powered job three channels has 6-ft span takes 40 60 power Bill says hes shaken guys using three-view MA 15 size 40s hair-raising thinks big pictured flown K&B 40 lightweight scads area suit reflexes can float Mods include reduc ing dihedral three degrees adding strip ailerons Control mob/e ss Escapeent DsA -o-y6 tJck SSeeS8oss stbsabot /ihqh soldered dsk A/o /4 wC C, dve rn4 bet wee SAn1t cf Ruhbe,otoIreotwe esc4o~et 0-n Soderd0 Armatwv he/S bysprin4"p /MJit/On t brassControl na9net satrol arm bentTo P/osh/iqht da,eled/in SerdS l strennthmqqtJsestee FRONT Qbber Motor Spr-i9tohald ortatmre c7 45i fOJtO7 SIDE Itk Put / Esp4euot Awn An Left 1937 Nats Chet Lanzo used motor-driven servo rudder tab 8-ft parasol Cyclic operation went left-toneutral-to-right vice versa According Jim Fullarton writing Australian model magazine Airborne no defined stopping points piloting must have difficult motor came toy train radio gear weighed 1% lb Right famous Ross Hull escapement permitted Hull make 100 flights 1937 too cyclic Much compact Good brothers developed escapement independently same year Hulls 13-ft Sailplane may seen ARRL Museum Hartford CT 22 Model Aviation 4md #101/on Ctpi,I 4* Gcn semi. Ff0, cLOccT$CCOO te &mvr Tie. 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Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per ordet $695 @ CA residents add sales tax REPLACEMENT PARTS FOR Kraft Engines Testorl McCoy Taipan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available enough throttles make thousands happy January-February 1983 issue Airborne great Australian model mag Jim Fullarton impression Jim may go back age steam did remarkable article early days radio Jim began account airship theatrical act 1912 Dundee birth year guided radio over heads audience assume hy drogen-inflated audience spared ultimate thrill 15-ft dirigible two airscrews propulsion varied thrust steering two vertical axis altitude control Bombbay doors opened drop flowers audience radio spark trans mitter coherer tube receiver tube filled iron filings came receptive signaL Almost 50 years later remote-control cars used similar receiver current coherer tube worked relay caused drum rotate means ratchet contacts drum activating controls Fullarton reports RC includ ed 1936 US Nats didnt amount beans inspired sev eral entries 1937 Nats including Chet Lanzos 8-ft FF-type parasol old timers still build Lanzos ancient designs John Pond plans actually managed flightof sorts rudder Chet Fullarton tells us man aged cut radio weight mere 1 lb finding B battery weighed 2 oz removing bases three valves Chet flew wunderkind 45 Baby Cy clone Said Fullarton weak link system undoubtedly actuator consisted electric motor model train driving way reduction gearbox homemade like everything else two-throw crank operated rudder Operation cyclic get right rudder go Left-Neutral-Rightbut no defining stopping points thing kept revolving long transmitter keyed control must have less matter inspired guesswork conse quence report MAN distinct ly skeptical although Air Trails later published plans much enthusiastic Fullarton amazement knew G Hull brother Ross Hull both Australians Ross mentioned recent column electrocuted early TV experiment came US first heard him editor QST organ Radio Re lay League America contem porary young Good brothers Ross Hull seemed demonstrated rubber-powered models WilliamsContinued page 26 24 Model Aviation cMrEt PRODUCTION RJL Induatrlea ox 5854 dena CA 01107Phone Il3J 38800 16 Os Wag 440 nes san Stlucred tOT dual IA 5p[IflQ steel Far Coatro Unkage rook 005 Cat No 304U SlUG575 SPRING ACTION KWIK-KLIP Locks Kwik- KIip onto T7Zt glo- plug continuous Socket tive contactNO 150 wlo wiresS85Head _______________BALL No 151 WI wiresS1A0Bait IWRENCH SET No 1A7Fits 4-40 S2256-32 head bolts Leads cap screw head angle 3 3/4 blades 132S525 ____1_ KWIK-FILL FUEL PUMPS --COMPLETE FUELINE SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTER I~II ND OPERATED PUMIS N AND DolT NIGH HeN ON GALLON OUGHT OH PINT SIZE CANS NOLOME FLOW No 191 Gb Fuel $1095 No 250 Gas/diesel $1195 KWIK-GLO Gb Plug Connector piece brass barrel snaps onto plug positive start 241/2 long batt lugs SOCKET HEAD CAP SCREWS NoSize 3092-56 x 3102-56 xlo 3112-56 xala 312A-AG x1 313A40 X1la 31AAA0 x11/i 3156-32 x1 3166-32 x1l* 3176-32 xloll 3188-32 x1 3198-32 xP/a 3208-32 x11/2 $100 per package 8-32 NYLON INSERT ~LOCK NUTS Per Pkg 10 8 6 10 8 6 10 8 6 8 6 l0perpkg $100 DU BRO PRODUCTS INC srM5U Backpressur noise level can varied adiusting muffling spring out fits engine 09 80 i-WAY SOCKET WRENCH Perfect glo plugsNo 251 prop nuts nylon bolts$295 5i163/8 lIir20 X 2 NYLON WING BOLTS strong black nylon wing bolts designed safety convenience mind Inside socket made fit 3/1 6 allen wrench outside hex sized tor glo plug wrench Cat No 1A2AS100 FLAT& SPLIT WASHERS No SizeIII77 321No2 FLAT WASHER20 322No2 SPLIT WASHER20 323NoA FLAT WASHER20 32ANoA SPLIT WASHER20 325No6 FLAT WASHER20 326No6 SPLIT WASHER20 327No8 FLAT WASHER20 325No5 SPLIT WASHER20 S50 Per Package Ho 330 2-56 KWIK & SOLDER LINK SPRING KEEPERS Ho 331 A-AU KWIK & SOLDER LINK SPRING KEEPERS 6perpkg$50 4U0 BoTnor Road Waaaconda IllietoiS 60084 USA 2 J town football ground 1916 help ing launch Australian modeling movement became editor Wireless Weekly 1929 actually published plans Baby ROG Ross joined QST assistant ed itor 1937 fell Roland Bourne never heard him either Clinton B DeSoto did know De Soto far out radio transmissions banned during WW II did piece Air Trails fly radio anyway laying out big rectangle ground cable hopefully trying keep plane within confines cable Fullar ton tells us three part group studying possibilities RC visited Soaring site Elmira NY Ross met chap named Carl Thompson already flying large model Sailplane primitive one-way controL Hull acquired model rebuilt installed own control system Hull Sailplane exhibit Hartford CT museum American Radio Relay League rare picture Fuliartons Airborne article shows Ross two assistants Sailplane quite respectable 13footer 10-lb gross Ross stand ing surveyors transit tripod Fullarton says mounted Bourne control stick ratchet device automatically gave correct number pulses operate rudder early SOs authors privilege fly combatusing over weight Live Wire Senior built de Bolts rough plans K&B 23 against Walt Good Rudder Bug Walt using motor-driven beep box containing small rotating contact drum control stick gave him desired Left-Right rudder positions quickly effect flying proportion al rudder Mexican standoff though Walt once got within inches ribbon thrilled him too Fullarton goes say out standing feature Hulls Sailplane first time rubber-driven es capement operating rudder far ahead clockwork electricmotor-driven systems day because electric motors big heavy Airborne feature reproduce two sketches showing Lanzos early actuator other historic Hull escapement Cyclic fast responsive enabled Hull make 100 flights during summer 1937 Fullarton cites article DeSoto January 1938 MAN credited Hull invention actuator dubbed Hull Escapement Fullar ton also tells us Hull non-American name included list 250 scientists compiled Congress after war made signifi cant contribution war effort Continued page 28 August 1983 26 WITH DUeBRO PRODUCTS INCORPOHATD DO BOO 4 40NEKEL PLATED / EWE L NESGOLDEN LINESh1I3IIIIll2 MUFF-L-AIRE II 9e ne4 40 solder Ones eel plated tar easy rInD Ca N 3DAcH NH 355121ST GO NORTHERN CALIFORNIAS LARGEST DISCOUNT HOBBY SHOPI New high film strength lubricantU increased power engine lifeI well FUELyou Highest quality ingredients Deter~fl action tut varnish IJI I II II II II II II II II IU II HOURS Monday shru Wednesday 93U-JU Iflursday U noay YJU-OUU L turday 930-600 Sunday 12OO-500 J mm mm m easuring reflection UHF signals through atmosphere important effect develop ment radar Fullarton states 1938 Nats did see flight Goods among five RC entries entry brave 20 mph wind plane looped crashed 1939 also Detroit Nats 11 entries recall glancing up wonder big Guff flew length field steady course least several hun dred feet high either 1940 1941 Chicago Nats mesmerized FFer stuck close Goods watched Walt fishtail high approach soft landing right feet Some loose ends Walt model er Bill ham radio man escapement simpler compact unit Hulls apparent ly developed separately con currently Hulls development given 1947 Good brothers system Beacon Walt Schro der built plane de signed used system another halfdozen ships until Loreuze-developed tiny gas-tube receivers around 1950 basic system still same Goods compacted transmitter big black box hung 9-ft-high folded-dipole antenna first test flight 7-ft origi nal RC Special launched Walt Schroder Canaan CT huge 40-in stab clipped him back neck Ohisson 60 behemoth lumbered having loosened Walts head climbed gently made wide circle land perfectly flare opposite rudder bring up nosea lucky guess distinct pound ing noise Walt couldnt hear insistea sounded like drum going boomboom put ears trans mitter Silence put myhand chest heart also cold engines venturi plugged ice would know far have come order guess far may still go Good brothers system something behold simple said utterly reliable outof-sight range solve Rubiks Cube operate anything appeared during following five years airborne weight about 1 lb battery supply consisting flat 45-volt B batteryabout high big coffee mugan battery two big flashlight cells excapement re quired two pen-cells frequency 52 MHz superhet receivers appeared fickle superregen types would pick up absolutely signal within country mile frequency Fortunately nearest RCer might Continued page 76 28 Model Aviation Super Fli NEWNow Two Sizes 30% 92 inl & 25% 84 Both use Quadra 25% can use large Glow no less outstanding Quadra designed Beagle Pup-150 14 lbs 20 cu Guadra will turn English aerobatic trainer Tiger Pusay cat depending throttle aetting Specs Span 84 Wing Deaign Foam Flaps Fuse Design Built Up Landing Gear Front-Shock Absorbing cowl Fiberglass Canopy Windows 040 Thick Zlin Z5OL Two Sizes 30% scale 92 wingspan kit has steel landing gear market Qefies breakage 25% scale 80 aluminum gear 30% $20995 Giant Tailwheel Assembly Spring Steel Places weight rolling stress bearing surface servo gears Will bend 2 sizes 10-20 lbs & 20 $1595 954 Desi Quickie 500 racing sport flying Kit features hand cut balsa ply Darts Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Quickie 200 Maryland races four years other Quickie 500 racersTorque absorp combinedtion nose struc Dave Latshas T-Tailed Rivetsture Americas Custom glass fuse Complete kitfastest 1AA wheels News Flash RI- Quickie 200 vets wins Tangerine Intl $9995 $2695 MILLSSee local dealer order directMd residents add 5% tax AIRPLANE MODELS 2868 Hambleton Rd Riva MD 21140 Send $2 50 Foam Wing catalog to. 1111 HIU JOHNSON MODEL PRODUCTS Cat #50 small $140 Cat #51 med $1 50 11015 Glenoaks Blvd Pacoima CA 91331 213 899-4312 Hi Johnson offers COMPLETE line fuel fil ters V2A V4 scale metal construction per mits easy disassembly years satisfied use cat #52 large $1 60 S UPERTAPEThe Finest Adhesive known applica tion balsa plywood foam cores No Waiting e Lightest Adhesive e Improve heat age Cat #56Wide995Compare First Cat #56-2Wide1995180 feet Cat #573/sWide595each roll MAC Show/Jolly Continued page 54 aerobatics people still judge other machines standard Heli Boy 1983 will remembered year Heli-Boy didnt have spot light Schluter booth Once again Dieter Schluters genius has unleashed upon us new machine Superior talk show Its just evolu tion Heli-Boy entirely new highly-refined machine featuring superb German engineering Too new show its potential Superior will available late spring has already placed several competiutions Europe Superior designed 60 engine has Bell-Hiller steering collective pitch adjustable damp ening double-sided gear full envelope flight performance have never seen ball races Helicopter could Dieters masterpiece truly Super ior Tony Frackowiak flew Schluter line outdoor demonstrations As common trade shows also static competition RC Heli copters years winner Richard Perre entered exquisite Hirobo Lama SA-315 finished civilian markings hope will try new machines just too good pass up See next year 1984 MAC Show Fun/Winter Continued page 28 hundred miles awayand hardly ever flew anyway No CBers either terference uncoined word Since receiver broad Midwest system tuned reading meter plugged airplane before session Old-timers will remember al out-of-sight ground checks tuned receiver steady carrier wave emission keyed transmit ter turned knob direc tion until escapement triggeredthe plane near enough hear click assistant wave arm knob turned other direction until escape ment clicked againthen centered knob midway between click points What heard escapement pulling releasing crucial features receiver its 3A5 hard tube polarized relay Idle something hke 7 mils transmitter keyed plate tube altered flow electrons between its other components drop current say 4 mils relay armature rested live con tactso needed two switches turn radio off other shut off escapement tube current dropped relay armature activated escapement Continued page 84 76 Model Aviation SOUTHERN PRO RETRACTS SERVOFormerly ACTUATEDPRO-LINE FORand RELIABILITYSOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013t513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO OOESNT WORK IT DOESNT MATTER Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202 Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 PkI2 Inserts Fine $225 $225 $195 $195 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Add 75 shippingMichigan residents add 4% sales tax Bru Line Industries Inc PO Box 3786 Center Line Michigan 48015 r213 764-1490 IL,ifl& J,AU AILLILktI6S I-LU-LUSp"R/C GOODIESI Charlie offers BEST BUYS R/C13400-26 Salicoy StreelI MADE INNorth Hollywood Calif 91605 I Systems USA Systemsconvertibleupto5Ii channelsSPECIAL 810 Std System has dry Tx Rx NicadsR/C SYSTEM fl& Flite Pack Charger Deluxe ISystem has Nicads Tx plus Dual New ChargerFreqs Available 2-CHSTD $9995I U 2 ServosDELUXE 11495K U 3CH STD $11495 1 3 Servos DELUXE 12995 U 4-CH STO$12995H Servos DELUXE 14495I U4-CHANNEL SYSTEM SHOWNI SHIPPING $650 CALIFORNIABoth Systems include 750mw Tx Open-Gimbal RESIDENTS ADD SALES TAX Sticks plug Receiver Rx Nicads Charger CH 4 U U Servos Servo Trays Add $1500 53 MHz U CASH DISCOUNT PRICES SHOWN Charge cards 5% higher 20% deposit CODs Catalog 75 US $200 Foreign j 84 Model Aviation Fun/Winter Continued aqe 76 aft end Good escapement four-arm affair upon signal would move half-right position long signal held signal relaxed escapement went full-rightwhere stayed until did something about turn left now go back half-fight neu tral half-left finally left escapement did neutralize self Further know what position last used order know what would happen next talked out loud chanting fight neutral left neu tral fight witnessing dealer Danbury CT late Don Grout 40 miles away found ridiculous went back shop invented compound escapement pulse fight two left Howard Bonner pushing famous SN self-neutralizing escapement however still required go through right get left re member last showed Dons gadget Howard Bon ner saw light compound es capement followed later cas caded escapements giving multiple controls soon hit market escapements added electrical quick blip contact could activate SN escapement engine elevator Installing operating Good brothers system could fiendish Cur rent drain B battery high quickly learned reset relay fieldin order keep relay armature middle steadily lowefing current range shown meter meter required cer tain resistor across its poles otherwise danged system detuned meter pulled out Few people knew Also antenna length super cfitical determined particular airplane Youd start long antenna clip 5/4 time until got 1/10th mil drop whenever hand touched anten na antenna arfive neatly receiver above because its presence could detune receiver wont believe receiver mounted Receivers didnt come tiny boxes big cumber some tubes relays coils stick ing out both sides mounting board no printed circuits no tran sistors madman could have predicted chip Univac hadnt invented would fill apartment Apples grew trees What four Farnstock clips base cornersas some doorbell batteries know circuit could have included clipsyes did because antenna went clips ran rubberbands through Dl III QUADRA ENGINES S SSORIES Let us update old engines Sales repair services WE ALSO FEATURE eGIANT SCALE KITS AND SEMI KITS CLEAR WHITE PINE STOCK SIZES /4 SCALE DUMMY RADIAL MOTORS CUSTOM KIT CUTTING SERVICE GIANT SCALE BLUE PRINTS BIG IS BETTER SEND $200 FOR OUR NEW CATALOG OR CUSTOM * * Long Engine Life * * Use BRU LINE Air Cleaner loops clips attached firmly hooks four cabin uprights Two purposes served minimize vibration re lay chattered escapement plane flier went berserk other absorbing shock case crash first time entered RC Nats Harry Geye made Good brothers unit under Beacon name pulled receiver four hooks came loose Remounted per instruc tions stuck big hand through door lifted 7-lb crate its receiver shook way dog shakes bone Fine pronounced small gas-tube receivers came along Norm Rosenstock stuck foam-rubber block turn stuck contact cement tray front cabin could slid out servicing first crash-proof receiver Good brothers unit wasnt long fore people mounted escapement behind receiver rear cabinand always got smashed crash Well hefty Good re ceiver catapulted forward damaging itself against front bulkhead usually split recoiled rubberbands rear sneakily crushing escapement took year solve mystery Takeoffs invariably hand launched Before trike gear appeared late Forties Walt Goods Rudder Bug heavy marginally powered slow-responding rudder-con trol tail-draggers mad bulls left alone Early first big Free Flights big heavy RC ships launched people holding wing tips crates acceleratedthen sprinting like Chariots Fire assist ants kind catapulted struggling behemoths full flight least didnt have mow grass realize history RC just within decade start ing say 1937 escapement pio neered Hull Goods opened up RC public Few mention Ed Rockwood before war quietly developed California first reed system may have five-reed banks time sure early postwar National Contests saw five-reed jobs installed 7-ft Cub-like models flown another group won Nats too finicky Rockwood servos used converted English toy motors reeds would weld themselves contacts rest us tried using equipmentsince didnt know suppress arcing common escapement voltage spikes could hit 600 volts escapement relaxed late Howard McEntee fooling Continued page 92 * Constantly monitors receiver interference another trans mitter outside sources instantly reducinj throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adi 0628 milliseconds Systems 3 4 wire Temp Range 00 1400F Weight 1 2 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering ILF Enterprises 106 N St. Arlington OH 45814 419 365-5056 August 1983 85 Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant Fun/Winter Continued page 85 proportional rudder others soon after multiple propor tional controls So fair account radio control would make historical tome handful folks smatter ing electronics fiddled pulse rates pulse widths mixed both two proportional con trols have heard tell Jerry Pul lin West Coast real father proportional got act together early full-house propo rigs popped up commercially California like spring flowers will tell story very early SOs MAN asked Paul Runge what new said some guy Virginia system called Galloping Ghost turned out own AMA Executive Director John Worth solved proportional elevator rudder simul mechanical means led four-part article link age arms actuator single infamous Victory motor connected rudder elevators position transmitter stick would enable constantly threshing surfaces average out some desired flight path ground plane looked sounded like wounded duck Hams concocted strange wonder ful rigs crates example Sigfried won Nats circa 1940 15-ft giant performed first loopin public anyway crate big glassed door peeked saw huge gears made think colonial watermill Fuliarton cited MAN article reported early Nats no flights took place day because pilots ran out day light before could complete tuning equipment Good brothers Guff osten sibly rudder-only aircraft did have elevators heading photo can see through magnifying glass two relays through inspection door second tiny elevators dont recall Walt ever making eleva tor maneuver Nats dont have foggiest notion triggered second escapementun less some folks tried Goods two receivers conjures up wild notions about transmitter two frequencies point just spoke Walt Good phone Florida Yes two receivers tuned opposite ends old Amateur Band 50 56 MHz three escape ments Big Guff also clapper its spark-ignition Brown Junior sort slowed down Goods option flying either rudder/elevator rudder/engine Guff also thermal-delay engine cutoff actuated holding rudder five secondswhich tells lot about Guffs turning characteristics reason never seen Goods use rudder competition receiver acted up connected better rudder way won heading photo youll note small control box held Bill Goods hand using three close-up lenses stacked together able read words Up Down adjacent stick Almost completely hidden under Bills forefinger button switch Walt says two either buttons switches evidently rudder left hand operated rudder right elevator desired frequency automatically determined move ments controls tiny box Until glow plug came along Ray Arden flew powered FF across Van Courtland Park 1904that date precise because once interviewed Ardenhanded out sample glow plugs Minneapolis Nats 1947 thing ignition Before 1950 two sets points ignition engines two speeds world went glow-ignition bananas Crates became spongy fuel melted nitrate dopes came fuel-proofers finally buty rate dopes years no way throttle glow second escapement triggered quick blip primary escapement operated clapper choked venturi idleand few botheredthe plane blubbered along low speed cloud smoke came two needle valves above other Inside crate clapper adja cent end air line leading loW needle would close air line both needles would pour fuel badly-flooded engine Clouds smoke horrendous cleanups heartbreakers Relay contacts quickly became dirty and/or pitted due voltage spike sparks crates smashed-up flew away often made successful flights Chet Lanzo quipped radio control permitted select loca tion crash 1951 went four months successful flight al though flew weekend year tip RC historical icebergand part age escapements landmark reached late Forties Vernon McNabbs 465 hand-held outfit gained first approv al FCC license-free operation wont go incredible adven ture beyond saying flew test units before leading own Citizen airplane old MAN Sensational developments take place constantly cant see Chips stuff know take superb radio systems granted DCRC Club Open House early 70s stage displayed historic RC jobs members including Walt Good developed end line late-mark Rudder Bug fullhouse controls relatively modern proportional circa 1955 Well never forget Walt looking wistfully highwing Bug already flying Pattern other types saying what thought would come eloquent proof future cant predicted todays basic technology What changed things Cali fornian named Dunn unable dur ing SOs attend Nats amused himself revising Bonner cabin Smog Hog low-wingerthe Astro Hog Sig has Astro Hog kit knew low-wingers didnt fly After Nats deBolt phoned us MAN told him junk cabin Pattern designs Stunned murmured California has gone low-wing exaggerated thats impossible retorted Perhaps moral order make progress must watch kinds models years before very nice lowwing model won Wakefield Cup Low-wing Rubber Scale models flying 1943 design Italian fighter much inproved flown modern techniques Pat Dailey won FAC Nats WW II event Earl Stahls North American Apache best ever before war great Kingfish Sadler Little Rock successfully flying low-wing FFs Nats Dont think is aint Auto pilots Just talked Bill Hershberger early April opportunity fly transmitter computerized sticks developed fel low club member encoder board replaced computer unit face transmitter num bered buttons can program possible maneuver side other numbered buttons 1 5 enable use transmitter different airplanes Apparently takes off uses sticks normally Bill says could tell difference sticks feel own Silver 7 Until five minutes ago talking tongue-in-cheek about future Bite tongue Bill Winter 4426 Altura Ct Fairfax VA 22030 Electric Hurricane/Crowe Continued page 37 main gear legs used wire soldering lugs ends sway braces mount ply gear braces Continued page 144 92 Model Aviation