NO OCR TEXT NO OCR TEXT balloon envelope putting gon dola made material Styrofoam egg carton directly balloon vinyl electricians tape motor stick balsa business end power supply balsa stick aluminum tube bearing prop kids made stack balsa laminations fanned out glued sanded pinch wed use heavier plastic prop fins cut construction paper stuck Magic Mending Tape About 2-ft loop 1/16-in rubber would give flights lasting 2 min aroom 12-ft ceiling blimps bounce off walls few years later Bill Watson making Radio Control blimps some sophistication sight behold Pasadena IM Show dozen-footlong Golden Football used 48 cubic feet helium welcome relief flam mable hydrogen provide lift Helium lifts little less hydrogen whole lot safer Too bad Hinden burg designed bags helium sur rounding hydrogen cores wasnt able get last resort used hydrogren way almost way disastrous consequences know well Helium lifts little less 1 oz per cu ft quite bit can hot air fuselage Golden Football suspended about foot beneath shining eight-gore DuPont Kapton Key lar film bag electric motor Astro 02 rigged rudder-aided directional control Longitudinal control stability came fixed stabilizer rear movable like diving planes submarine front carried 5 oz water ballast motor could con trolled give reverse flight Try winged RC airplane nice feature design release mechan ism dropping things like small hang gliders altitude Bills rcent RC blimp drops things too much smaller practical small gyms carries 17 cu ft helium its aluminized Mylar bag oovering Saran-coated seals easily heat Bill says doesnt know can get though high-tech mate rials came him via team built famous Gossamer Albatross Gossa mer Condor Bill apart both projects knows about super-light oon struction almost anyone know entire aluminized blimp 6 ft long has 3 oz material gas bag two-gore designsimple make having lots wrinkles critical fly 3 mph three-channel radio operates motor speed power motor like type used servos thrust vectoring up down rudder rudder tied gimballed motor mount applying rudder moves motor thrust sideways give turns proverbial dime up down control provides range thrust straight up straight down maneuverable 82 Model Aviation van delivered cylinder helium top off airship hazards ot buy ing pig poke tank proved empty Water ballast added front tank ship will weigh about pound individual pilot before being flown Watsons latest RC blimp Indoor flying equipped drop PF hang glider up nearthe ceiling Electric motor power swivels directions altitude turn control miunareds kids have made model blimps like authors classes over last 15 yearsmainly due Bill Watsons inspiration assistance rubber-powered model guaranteed fly crash just means bouncing off wall Styrofoam gondola often pressed illto service retrieve Peanut Scale microfilm-covered ships overhead lights Paul Revere Junior High School Indoor meets Long interested human power Bill helping build Paul Mac Cready Gossamers also hang gliders bicycles speed record attempts Ontario Raceway shells racing bicycles inventiveness eventually brought him contact top people human-powered vehicles also got him building unusual stuff movies Radio Control ptero dactyl movie War Games contact changed life meeting popular comedian Gallagher Gallagher run-of-the-mill comic highly-imaginative creative phil osopher love humanity na ture drives him some pretty zany demonstrations idea non-pollut ing little cloud could pedalled about process provide vehicle getting people look skyward think about what doing air born Bill given carte blanche make though copythe golden age blimp having peaked some 75 years earlier Drawing model experience Bill did basic design workkicking around ideas Blame Rawdon Bart Hibbs provided invaluable assistance stress analysis configuration com puter-designing prop ala Larrabee know about computerdesigned props An order placed Raven firm makes types hot-air gas-filled envelopes tear drop-shaped envelope ripstop nylon urethane coating made 16 gores gores less wrinldes fewer wrinides less drag finished bag 47 ft long weighs neighborhood 60 lb Brian Allen pilot power plant great Gossamer ffights incidentally winner prize money pilot history doing Charlie Sink graduates Aeroplanes Flying Machines class called work Bill fuselage Built 2024 T-3 aluminum alloy tubing 7075-0 gussets fuselage tremen dously strong gussets pressureformed dies Bill made poprivets fasten tubes Warren-truss configuration prop has spruce spar main blades made Styrofoam prop driven pedal crank standard bicycle chain connec ted two plastic-cable chains sort used Gossamers lever pilots left controls vectoring propeller thrust up downnot much RC blimp enough make difference between climb descent small crank pilots right controls rudder position monitored small rear-view mirror rudder itself features Styro foam rib cores spruce cap strips May1985 83 F- NW Back 19605 Bill Watson introduced kids lighter-than-air flying models Aero planes Plying Machines class summer science workshops California Museum Science industry Los Angeles Now hes made person-powered Bill Watsons rubber-powered blimps early 1970s Bag made two gores drycleaners bag Flightsof several mlnuteswere possible undera ratheriowceiling Bill Watson rides airship walked its flying site Camarillo Airport Hes riding because ship needs bailast novice can fly after brief Instruction period double-covered thin Mylar film Total weights compensate carrying different fuselage weight 60 lb loads wide variation pilot Ballast tanks fore aft fiber- weights An equilibrator consisting glass can emptied water about several lead weights rope normally minute pilot Easily-attached lead carried bag side fuselage Until new pilot has few flights under belt hung down under airship too-rapid descent becomes docile touch down lengths rope contacting ground progressively light ens craft much-appreciated feature pilots free-flying gas balloons retrievable ballast model airplane motor prop adorn front fuselage belt-drive Astro 40 18-6 prop can turned right left pilot theory used help sharp corners buck headwinds practice has little effect may removed future Instrumentation includes audible va riometer buzz pitches higher go up airspeed indicator bag pressure indicator FM radio ground communication Actually yelling between craft ground makes radio unnecessary airship makes no noise compete yell attachment cords between fuse lage envelope Kevlar surrounded Dacron ultraviolet protection abrasion resistance Reinforced round patches glued gas bag distribute load reality large safety factor having minimum number attachment cords seat belt has backup should come un buckled Inflating bag takes lot gas 16ft diameter bag requires over 20 tanks helium about 6000 cu ft price helium does bother Watsons RC electric-powered blimp named Golden Footballas seen rear Motor attached rudder better direc tional control Rear surfaces fixed front planes controllable Photo Don Monroe Right Bill Watson L adjusts ballast forGalla gher about take flight Gallagher successful TV comedian philosopher wants people take notice Little White Cloud stop polluting air Brian Allen Gossamer Condor Albatross fame calls ship ultimate ultralight trainer 84 Model Aviation $13000 just envelope may start thinking terms smaller model blimp Bill now building smaller livingroom version RC Electric arrived Camarillo Airport first glimpse magnificent airship early morning cant fly wind dead-calm about 7 am 10 am about can day Houston Astrodome can fly anytime top speed around 9 mph cruse 7 mph mercy elements airship temporarily nicknamed White Dwarf pending contest officially name walked out flying spot few hundred feet wide bounded hangars airplanes tether rope some 50 70 ft attached just case gust miscalcula tion should imperil ship left slack blimp would fly its own After couple shakedown flights Bill Watson graciously consented let have go will admit being absolutely fearless right up time about 40 ft off ground discovered incipient acrophobia person going make its presence felt rig Before liftoff bag pressure about two four hundredths pound per square inch checked auto matic valve let out excess pressure gets too great pilot has access normal seldom used pressure release valve No problem Bill Brian adjust water levels ballast tanks make ship about 1 lb heavier its hover ing weight zero After weighing off its time pedal prop pointing upward climb plane lever approximates plane prop rotation know much vectoring giving takes pedalling take effect ship responds thrust rudder changes what seems about 15-sec delay Still cares stopped pedalling took stock what next ship just hung Fantastic Well lets center rudder go pedal harder go faster pedal backwards slowly stop begin backup blades prop adjustable ground new lower-pitch setting used day says Bill gives better speed both directions What view up may slow its sure sitting front TV set two seat belts felt good though balancing narrow fiberglass semirecumbent seat Rudder hard over moving wellabout 6 mph think could get like Quiet except swish-swish-swish prop turning 330 rpm After few circuits Continued page 170 May1985 85 Bill Watson turning blimp kept tethered though flying free just case flying site between hangars parked aircraft tiniest breeze could present significant hazard Watson f lies overhead Note pyramidal water baiiasttanks helium Tillertube wfllch runs down pilot case need release gas Bill Phyllis Warner pics exceptas noted better half Warner team Phyllis flies blimp overhead Easily visible three transmission chains fiberglass pyramids containing water ballast right hand rudder crank rearvlew mirror shows rudder position bag hanging side holds equilibratorrope weights attached along its length can deployed ease landings novices Total fuselage weight about 60 lb Slow Combat model has terrible engine runs youre sure isnt fuel engine suspect tank Ive got hot tip Bob Nicks Triangle Hobbies makes various size tanks becoming standard Slow Combat also sells Eagle Slow Combat foam cores plans assort ed other Combat goodies Write him 1211 Brookgreen Dr Gary NC 27511 call 919 467-6720 several other manufacturers Ill mention later columns Charlie Johnson 3716 graham St San Diego CA 92109 619 273-6530 Geophysical Driskill-Hunton Continued page 78 fuselage add fin stabilizer parts fin should mounted slot Install bellcrank mounting plates Install hardwood dowels engine mount crosspiece bellcrank mounting plate limit bellcrank travel rear wing pin Cut elevator parts shape join Sand elevator smooth airfoil shape Apply light giass cloth center section elevator CyA Install hinge tubes epoxy using filament tape reinforcing Finish fuselage elevator assem blies fuel-proof system Make effort keep nose light since tail weight will probably have added make model balance properly Install bellcrank 0021 leadouts Lead-outs can fished through wing piece wire Install elevator elevator horn Joggle rear end pushrod extra jog fine adjustment Install engine fuel system Cut hardwood stub spars length slide fuselage Pre-fit wings can get carbon-fiber material slide %-in-wide piece over stub spar extend 3 onto main wing spar Use CyA anchoring carbon-fiber wings fuselage carbonfiber material available coat joining surfaces epoxy assemble wings Balance model center gravity approximately / ahead center main spar can make controls responsive adding weight tail moving CG rear ward small increments Geophysical light responsive flying skills rusty building sport-stunt trainer begin CG well forward slower con trol response Combat trim hands experienced flier like Larry Driskill Geophysical awesome Blimp/Warner Continued page 85 course ready come down Pedalling tends tire novice easily mentioned earlier found really too crazy about heights though flying has never bothered least before case thrill never forgotten As morning progressed wide vane ty experienced novice pilots took blimp spin Gallagher Bill Charlie Brian couple other old hands certainly rig well hand could make go exactly wanted Newcomers like wife Phyllis Bills 1 2-year-old nephew George lady ran kindergarten tcok first flights mastered ship loved minute Peripatetic Raindrop name registered ultralight aircraft flying weight 1 lb probably lightest ultralights world According Brian Allen ship . ludicrously easy train someone four times strong anything else Besides says Brian other Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marine K&B FUELSKAB GLOW PLUGS 7 Blends4 c5oices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMERKAB SUPER POXY PAINT K&B MIXING CUPS 170 ModelAviation ML & CRAFT 16th ANNUAL APRIL 27th & 28th LONG BEACH CONVENTION CENTER 300 E OCEAN BLVD LONG BEACH GENERAL ADMISSION ADULTS $400 UNDER 12 $250 / UNDER 6 FREE HOBBY CONTESTS DEMONSTRATIONS EXHIBITIONS Contest Details Local Hobby Shop through Local Club Contact MACS CONTEST DIRECTOR P0 Box 284 Westminster CA 92684 714 891-9559 MACS IS SELLING SHOW New Model Magic Products Model Magic Epoxy Plus 2 Part 8 Mm Use anywhere two part epoxy used 25% lighter Sandable Carveable Excellent Gap Filling Non Sagging Superior Strength Sands Carves Like Basswood II 6 fI oz$895 Equal over 8 wt regular epoxys See dealer firnt Ehen wriRe cBII Model MagIc PudUCtS kc P0 Don 19784 5tu MN 55119 17151425-1397 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak137 158 AMA Membership Academy Av Research & 0ev137 Ace Radio Control139 Airtronics2 Applied Design142 Astro Flight158 Balsa USA15 Blue Ridge Models146 Bru Line Industries5 Byron Originals86-86 CB Associates137 Ca Ra Products139 Carolina-Taffinder138 Johnnie Casburn Mfg143 Champion Model Products146 Chevron165 Circus Hobbies156 168 Cleveland Model & Supply Co161 Eric Clutton164 Consumers Guide47 Coverite1 Curtis Model Aircraft24 D&D Engineering151 DGA Designs161 Davey Systems Corp20 151 Larry Dodge Aero Inc164 Dodgson Designs152 Dougs Hobby Shop166-167 Du-Bro Products Inc4 FAI Model Supply153 FHS Supply Inc12 Flyline Models160 Fourmost Products136 Fox Mfg22 Fun Fly142 Futaba Corp America25 Gator RC Products138 Gemini Models157 Carl Goldberg Models13 147 Golden Gate Hobbies49 Gorham Model Products14 Great Planes Model Mfg Co162 Historic Aviation21 Hobby Barn134-1 35 Hobby Capitol Distributors159 Hobby Horn78 Hobby Lobby International9 Hobbypoxy146 Hobby World Imports170 Holleys Silent Flight151 Howard B Huebi171 Ikon Northwest Co165 Indy RC Sales Inc154-1 55 Jomar Products24 K&BMfgCo170 K&S Engineering148 K W Enterprises153 Knights Air168 Kraft Systems Inc23 Kustom Kraftsmanship147 L&L Model Products165 Lindsey Micro Products165 Lone Star Models45 Lutmi Enterprises164 MACS Products171 Master Kit162 McDaniel RC Service169 Messers Quality Model Prod171 Micro Mark24 162 Micro Model Engineering160 Micro-X-Products151 Model & Craft Show170 Model Magic Products170 Model Rectifier CorpCovers 2 & 3 Morley Helicopters USA157 Mutchiers Hobbies140-141 Nor-Cal Avionics160 North Products146 Ocean State Aeromodel Eng165 Ohio Superstar22 PK Products158 Peck-Polymers162 Penn Valley Hobby Center160 Peripheral Systems Inc149 Pica Products7 Polks Hobby8-9 Proctor Enterprises5 RC Soaring Digest148 Repla-Tech International146 Robbe Modellsport79 RoushMfg161168 SR Batteries148 S&W Hobby Supply150 Sailplanes World150 Satellite City93 Scratch-A-Plane71 Shamrock Competition Imports133 Sheldons Hobby Shop144-1 45 169 Sig Mfg Co5 ii Simplex Miniature Engines159 Southeastern Air Craft ers153 St Croix Park Falls156 Stan dale Aircraft152 Sterling Models47 Swanson Associates150 TG Mfg164 Tatone Products Co20 Tidewater Eng & Machine Co136 Top Flite Models Inc157 Tower Hobbies163 US Eagle138 VK Model Aircraft139 VL Products78 Videotech146 WE Technical Services6 Williams Brothers159 Wilshire Model Center14 Windsor Propeller Co156 World EnginesCover 4 Zenith Aviation Publications37 Nick Ziroli Models12 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX human-powered craft can flown doors Ihe possibilities model humanpowered blimps Gallagher has ased RC model looked like watermelon TV show Peck-Poly ners has quite inexpensive blimp being told more promotional stunts several countries interested military purposes Aside its eye-catching advantages advertising human-powered might set upto give rides maybe selling Polaroid shot videotape customer afterwards might have human-powered blimp race event next Olympics cant afford big ones though remember got started rubber-powered models Secrets None really Just add weight until model just hovers add just atadto bring down power runs out prop lower gas bag airship will climb naturally thrust continually pushing up nose positive angle attack Good year blimp works way vectored thrust icing cake want go RCContinued page 172 IN sTocK FOR IMMEDIATE SHIPMENT NEW RA 508$19995 New Onadra 36 col$10995 Reg Qoedre 39 $9996 Brisighella $Iywhml$11995 Reg Onadra 36 Power Aosesbly Only$6450 QUADRA REPAIR$1000 pins parts Jin Messer ERcOUPEPlANS $2396 KIT $23996 Jin Mesner TOMAHAWKPLANS $2396 KIT $36996 Jin Meson 9-BALL TRAINERPLANS $1996 KIT $19996 BALSA end BASSWOOD 111 sitesSig pioen lens 19% New ZENOAH 0-23 $13696ZENOAH 0-36 $ 9996 FLOATS 30116 noelonren $1796onnoplete kit $3996 FLOATS 49114 no1 cores $2196contpleoe kit $4796 10 WWI WHEELS 3696 PieW cyiS FLEETS$3696 PLANS SUPER STEARMAN 114 Godfrey$3996 STARDUSTER TOO 1I4Bringhelle 13 J3 CUB Nelit$2996 VOLKSPLANE 113 Chicken Cherlie$2396 COCKPIT KITS Tontahnwk F4U-1 Spitfire ME109$2396 Ernoope Fleet J3 Cob POE P47 C Eagle$2196 Cloak $2496 Zero $2696 Zero exteror$1096 US Onedra FUEL TANKS16 o $69623 n $796 FIBERGLASSARROWSHAFTS6/16o23long0l$1OO0 24-Hour Service. Add 5250 p stage Send flank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS valley view Dr. Boo 43 Allegany NY 14706 PRODUCTS FflA ThP ntcrpmuius MfliWi CE Complete Line Exhaust Systems d Pipes Muffled Tuned Pines Headers Venturi Mufflers Expansion Mufflers * Helicopter PRECISION BALANCE ALLBall Mufflers Specialized Exhaust Heres ho equipment need gwe prop 0iy best Systems balance-balance directions Carefidly crafted top grade Linsurpassad Workinan-ehin fonnaace materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Dlher sizes avadable special order [alers muted $1795 Add$ISOfen HOWARD B HUERL DEFT ODS pentege beadleg le Mis 6% ealee Pun lie C0Da Boo 92 Rt S Mankato MN 56001 May1985 171 FULL SIZE PLANS No 473 No 474 No 475 Tucano$1250 RC Sport Sosie spans 66 uses 60-75 engines Three sheets Pacer 15$500 FF 1983 FAI Class Fl World Champion Towline Glider Geophysical$400 CL Slow Combat model uses geodetic wing construction Two sheets $375 lb 133Stte CL Stunt mmlel McOnnab winnerl976 19801982 PAl Wend Cp$ Ne 281lb lkdn AC Ken Willards immatlon plane 4-channel 1 0-pnwer$125 lb 252Cmubmastho CL Crash jo-oct trainer two sizesl 5-30- 35-40-power .. lb 233See B IL pentsbe AC /4-scala hy Ilaflke tsr 91 power Prototype span 30 ft Two-and-a-half sheets$1175 Ne 362F1S AC Sarpolas 049 dected fan sport ttierfor2-channel Balsa wings tall hise structure$ 275 Na 3161330 Fleet 3bae AC SportScale 35-40 4-channel Wingspan 56 inscale Two sheets $ 625 Ne 314Drake t AC Ken willards flying beat 3-channel 1 5-power Fly front land removable gear$ 375 Ne 328Taller Cab AC Don Sruts Schoolyard-Scala br 049s 2-3 channel Spans 50 in$ 350 Ne 332 Zapbym AC Small 2-channel glider tsr hand-lasoch tow thermaL slope soaring $ 200 Ne 358 Pbceo FF Indoor Easy B Aubber-power contest-winner hy W Van Corder $100 Ne 383ClEats S2 AC Fly lIds sleek Nets winiting Sailplane AMA Mod Std Unlhnited classes$750 Ne 386Laser 200 AC Sport Scale repOca championship Aerohatic Bler Uses 40 power 4-5 channel Two sheets-$1075 Ne 318Sm Sm 81 AC flaflkes latest /4-scale spans iSis weighs 15 0, flIes 90 ar larger Foar sheets doc$2225 Ne 414BleabIc Spenky AC electric-powered fun tiler lorDS motor 3-channel AC scaled epi 939 robber-power lavoille$850 Ne 4226eetsr AC Two-Meter Sailplane has won Nats event 101982 1983 plea other contests- $550 Ne 423dud Cnisec AC Old-Timer takes 60-power 3-channel AC Two-pace wing optman tar easy transport Two sheets$1275 Ne 424Seed lent FF Emlays Enderasce robber-power fboalpiane has optional wheels stlck-and-tissan delight$ 200 Ne 426Clba Clppu AC Fabulous 74-in-span Sport Scale Ilying boat leer 1 B-size engines 4-channel Three sheets no don$2000 Ne 428Over E-Z CL Old-Timer Stunt biplane has praBle fuselage uses 25 engine$ 400 Ne438keeaMeRCZippyllttlesportsterlOiI0-lsPoweraOd3-channelAC -$ 400 Ne 431Lbheed P-35 AC Fao-scale twio-1 5-f lmr 4-channels Two sheets$1 300 Ne 432Fkeeaia CL Updated Thanderbird-style Stunter Ito- 35-40 engines -$ 575 lIe 433Wafba Up AC Electric-powered gilder tsr 2-3 channels 035 motor spans 52 in$ 450 Ne 435ThIn N AC Aerohatic biplane 40 engines 4-chasnels Great sport Ilyl$ 650 Ne 437KIqIsluc CL Profile Cantor plane spans 40/z in. noes 35 engIne$ 600 Ne 435Ciuleer FF Embryo Endurance robber-power tan slap has big-model characterlstlcs$ 200 Ne 433Deapenaic AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 Ne 440 Cavalec AC Old-Timer-like new design has hnge wing slow easy Bights 35 power 3 channels Two sheets $1 725 lb U1E WIt FF Hot small lightweight cmnpotitlso ship tsr 15 power designer Harry Murphy $ 475 Ne 442 Lang Ouch AC Big canard sport fter /nA-09 power 2 channels Uses loam board parts $ 650 Ne 444 Fbeldt AC pusher canard spartlpattem sam 40 pusher engine 4-channel Has swept-forward loam wings $ 650 Ne 445 Nesaitl Ceegac CL Scala model popular homehuilt won Nuts Uses 21 engine spans 41 in $ 925 Ne 445 La Crab AC Electric-powered sport flIer 05 motors 3-channels Two veraisos parasol cabin $ 550 Ne 447 YeA faa Amutol AC Old-Timer /sA Texaco model 049 glow 2-channels 50 Ne 443 SeAm CL SportlSlont plane 40-size 4-stroke engine builds last easy . $ 600 Ne 451 B llpbee 5ei ftC Aedesigo sleek 1937 FF biplane tsr 3-4 channels 29-40 power Two sheets $1175 lb 452 Bee Sm Z AC Osarter-scale spans 71 ses 90 power Foor sheets $1 600 $ 550 lb 453 Smeeflde meSa CL Prsfilo rendition 01 Bob Palmers supor-Stunter 01 early Fitties tsr 35 power $ 2011 lb 454Sweet P-30 FF Neat stich-and-tissue Ouldoor Aubber P-3D-class model isa coolest-winner Ne 458HfTeeh 2851 AC Dacted-tan lotaristic-leoking canard 25-size engines Built-up construction Three sheets$1175 Ne 457Speoha AC Electric-power 05-size motor uses 3 different wings sport soaring aerobatics$ 700 lb 458Beenllena CL Profile Canter 1 5-power events Two sheets$ 575 lb 453Sky renault FF Aebber-power old-timer designed Joc Ott 1932$ 300 Na 450440 AC Shoulder-wing spud Bier 4-cycle 40-size engine 4 channels$ 650 lb 461Tifabo Sanoateneec CL Famous untlapped Stunter late Farties Uses 35 engine$ 650 Ne 462Paula PE FF Jumbo Aubber Scale 01 WW taken observation plane$ 400 $ 475 lb 463Pletylmehletbea Vt AC mA Pylon racer uses lots ito ply built-up struclore tar strength lightness$ 325 lb 454Suedaecem CL bA sport flier all-sheet-balsa can use Tee Dee 049 lb 455Wee Mast AC Fuo-fly sportster 40-size engines spans 52 Lightweight strectare$ 700 lb 456CeuepeNfer CLStanterfor 60 power has 850 sq wing urea$ 575 Na 467Aloe Spent FF Aubber Scale desigo won 63 Nuts tar designer Don Srall Wingspan 2610$ 250 Ne 468Smeethe CL Stunter 29135 power Design bused hybrid SmoothielNebler$ 675 lb 463Sm Ktohet AC Sport Scale rendering Polish hmneboitl pusher Spans 75 uses 40-size 4-cycle engion Four sheets$2075 lb 470Slreher AC Mld-wlng sportster uses 40145 four-stroke engine spans 50/o tail-dragger$ 650 $ 575 lb 471Negas Aetaa CL Profile Stunt trainer spans 54 uses 35140 engine Flapped wing$ 550 lb 472Peracraft AC Craft has flesible paroled wing uses 3 AC channels 60 engine. 0 us n cJ 0t C 60 Zus 030 c us - 0 V us c0- 0 usus CV mm V o-t us 0 us V 0us 0 0us 0us c Ous ea 03 uC 03 STATE II Circle numbers plans wish order 193 326 422 432 441 451 459 466 473 239 332 423 433 442 452 460 467 474 262 358 424 435 444 453 461 468 475 299 383 426 437 445 454 462 469 302 386 429 438 446 456 463 470 Plan pnlce lacledes first class pinup tt US delvery wMch Alt MaE over 300 laNes l stun gutsMs fits US. please add $250 Air Mail $1 25 surface mail 310 398 430 439 447 457 464 471 314 414 431 440 449 458 465 472 0 Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Or, 1165100 VA 22090 Please allow 3 6 weeks delivery Please print carefullyEnclosed $__________________________________ NAME STREET CITY ZIP Happy flying stay out cactus Editor March 1981 Model viadon contained two excellent articles RC model airships Slow Year Blimp Lou Bruhn Summer Breeze Balloon Luther Hux Elec Floatplanes/PoIing Continued page 92 pieces area behind step should go first large piece area front step Allow generous overlap between two Cover top last Accept inevitable wrinides float curved hard get away few cant seen air anyway water rudder handy steering especially after landing have - get plane back shore breeze have taxi crosswind downwind can almost impossible water rudder can have enough power get plane step air rudder effective Personal ly have bad habit flying long can have enough power idle back displacement mode displace ment mode air rudder doesnt much short power blasts will help mentioned dont land enough power left use 3 sq water rudder 590 sq plane can scale other sizes using ratio wing rudder area water rudder attached directly air rudder simplicity Look closely photo can see rudder made music wire bent rectangular U plastic sheet surface taped together clear package wrap ping tape available stationety stores Part music wire left vertical stub matching stub attached rudder wheel collar joins wheel collar wonderful allows both side-to-side vertical adjustment rudder rudder should adjusted vertically top just out water plane sitting water no power Under power plane rocks back floats rudder well underwaterbut step rudder completely out water no drag Clever did water rudder years because drag severe enough prevent taking off finally simple system popped mind Now have benefits problems Another potential problem effect water rudder drag rudder hinges can severe provide tube rudder stub go through attached fuselage relieve drag pressure Enough now Next month will get final setup tips techniques - water flying Get plane ready continued 172 ModelAviation
Edition: Model Aviation - 1985/05
Page Numbers: 80, 81, 82, 83, 84, 85, 170, 171, 172
NO OCR TEXT NO OCR TEXT balloon envelope putting gon dola made material Styrofoam egg carton directly balloon vinyl electricians tape motor stick balsa business end power supply balsa stick aluminum tube bearing prop kids made stack balsa laminations fanned out glued sanded pinch wed use heavier plastic prop fins cut construction paper stuck Magic Mending Tape About 2-ft loop 1/16-in rubber would give flights lasting 2 min aroom 12-ft ceiling blimps bounce off walls few years later Bill Watson making Radio Control blimps some sophistication sight behold Pasadena IM Show dozen-footlong Golden Football used 48 cubic feet helium welcome relief flam mable hydrogen provide lift Helium lifts little less hydrogen whole lot safer Too bad Hinden burg designed bags helium sur rounding hydrogen cores wasnt able get last resort used hydrogren way almost way disastrous consequences know well Helium lifts little less 1 oz per cu ft quite bit can hot air fuselage Golden Football suspended about foot beneath shining eight-gore DuPont Kapton Key lar film bag electric motor Astro 02 rigged rudder-aided directional control Longitudinal control stability came fixed stabilizer rear movable like diving planes submarine front carried 5 oz water ballast motor could con trolled give reverse flight Try winged RC airplane nice feature design release mechan ism dropping things like small hang gliders altitude Bills rcent RC blimp drops things too much smaller practical small gyms carries 17 cu ft helium its aluminized Mylar bag oovering Saran-coated seals easily heat Bill says doesnt know can get though high-tech mate rials came him via team built famous Gossamer Albatross Gossa mer Condor Bill apart both projects knows about super-light oon struction almost anyone know entire aluminized blimp 6 ft long has 3 oz material gas bag two-gore designsimple make having lots wrinkles critical fly 3 mph three-channel radio operates motor speed power motor like type used servos thrust vectoring up down rudder rudder tied gimballed motor mount applying rudder moves motor thrust sideways give turns proverbial dime up down control provides range thrust straight up straight down maneuverable 82 Model Aviation van delivered cylinder helium top off airship hazards ot buy ing pig poke tank proved empty Water ballast added front tank ship will weigh about pound individual pilot before being flown Watsons latest RC blimp Indoor flying equipped drop PF hang glider up nearthe ceiling Electric motor power swivels directions altitude turn control miunareds kids have made model blimps like authors classes over last 15 yearsmainly due Bill Watsons inspiration assistance rubber-powered model guaranteed fly crash just means bouncing off wall Styrofoam gondola often pressed illto service retrieve Peanut Scale microfilm-covered ships overhead lights Paul Revere Junior High School Indoor meets Long interested human power Bill helping build Paul Mac Cready Gossamers also hang gliders bicycles speed record attempts Ontario Raceway shells racing bicycles inventiveness eventually brought him contact top people human-powered vehicles also got him building unusual stuff movies Radio Control ptero dactyl movie War Games contact changed life meeting popular comedian Gallagher Gallagher run-of-the-mill comic highly-imaginative creative phil osopher love humanity na ture drives him some pretty zany demonstrations idea non-pollut ing little cloud could pedalled about process provide vehicle getting people look skyward think about what doing air born Bill given carte blanche make though copythe golden age blimp having peaked some 75 years earlier Drawing model experience Bill did basic design workkicking around ideas Blame Rawdon Bart Hibbs provided invaluable assistance stress analysis configuration com puter-designing prop ala Larrabee know about computerdesigned props An order placed Raven firm makes types hot-air gas-filled envelopes tear drop-shaped envelope ripstop nylon urethane coating made 16 gores gores less wrinldes fewer wrinides less drag finished bag 47 ft long weighs neighborhood 60 lb Brian Allen pilot power plant great Gossamer ffights incidentally winner prize money pilot history doing Charlie Sink graduates Aeroplanes Flying Machines class called work Bill fuselage Built 2024 T-3 aluminum alloy tubing 7075-0 gussets fuselage tremen dously strong gussets pressureformed dies Bill made poprivets fasten tubes Warren-truss configuration prop has spruce spar main blades made Styrofoam prop driven pedal crank standard bicycle chain connec ted two plastic-cable chains sort used Gossamers lever pilots left controls vectoring propeller thrust up downnot much RC blimp enough make difference between climb descent small crank pilots right controls rudder position monitored small rear-view mirror rudder itself features Styro foam rib cores spruce cap strips May1985 83 F- NW Back 19605 Bill Watson introduced kids lighter-than-air flying models Aero planes Plying Machines class summer science workshops California Museum Science industry Los Angeles Now hes made person-powered Bill Watsons rubber-powered blimps early 1970s Bag made two gores drycleaners bag Flightsof several mlnuteswere possible undera ratheriowceiling Bill Watson rides airship walked its flying site Camarillo Airport Hes riding because ship needs bailast novice can fly after brief Instruction period double-covered thin Mylar film Total weights compensate carrying different fuselage weight 60 lb loads wide variation pilot Ballast tanks fore aft fiber- weights An equilibrator consisting glass can emptied water about several lead weights rope normally minute pilot Easily-attached lead carried bag side fuselage Until new pilot has few flights under belt hung down under airship too-rapid descent becomes docile touch down lengths rope contacting ground progressively light ens craft much-appreciated feature pilots free-flying gas balloons retrievable ballast model airplane motor prop adorn front fuselage belt-drive Astro 40 18-6 prop can turned right left pilot theory used help sharp corners buck headwinds practice has little effect may removed future Instrumentation includes audible va riometer buzz pitches higher go up airspeed indicator bag pressure indicator FM radio ground communication Actually yelling between craft ground makes radio unnecessary airship makes no noise compete yell attachment cords between fuse lage envelope Kevlar surrounded Dacron ultraviolet protection abrasion resistance Reinforced round patches glued gas bag distribute load reality large safety factor having minimum number attachment cords seat belt has backup should come un buckled Inflating bag takes lot gas 16ft diameter bag requires over 20 tanks helium about 6000 cu ft price helium does bother Watsons RC electric-powered blimp named Golden Footballas seen rear Motor attached rudder better direc tional control Rear surfaces fixed front planes controllable Photo Don Monroe Right Bill Watson L adjusts ballast forGalla gher about take flight Gallagher successful TV comedian philosopher wants people take notice Little White Cloud stop polluting air Brian Allen Gossamer Condor Albatross fame calls ship ultimate ultralight trainer 84 Model Aviation $13000 just envelope may start thinking terms smaller model blimp Bill now building smaller livingroom version RC Electric arrived Camarillo Airport first glimpse magnificent airship early morning cant fly wind dead-calm about 7 am 10 am about can day Houston Astrodome can fly anytime top speed around 9 mph cruse 7 mph mercy elements airship temporarily nicknamed White Dwarf pending contest officially name walked out flying spot few hundred feet wide bounded hangars airplanes tether rope some 50 70 ft attached just case gust miscalcula tion should imperil ship left slack blimp would fly its own After couple shakedown flights Bill Watson graciously consented let have go will admit being absolutely fearless right up time about 40 ft off ground discovered incipient acrophobia person going make its presence felt rig Before liftoff bag pressure about two four hundredths pound per square inch checked auto matic valve let out excess pressure gets too great pilot has access normal seldom used pressure release valve No problem Bill Brian adjust water levels ballast tanks make ship about 1 lb heavier its hover ing weight zero After weighing off its time pedal prop pointing upward climb plane lever approximates plane prop rotation know much vectoring giving takes pedalling take effect ship responds thrust rudder changes what seems about 15-sec delay Still cares stopped pedalling took stock what next ship just hung Fantastic Well lets center rudder go pedal harder go faster pedal backwards slowly stop begin backup blades prop adjustable ground new lower-pitch setting used day says Bill gives better speed both directions What view up may slow its sure sitting front TV set two seat belts felt good though balancing narrow fiberglass semirecumbent seat Rudder hard over moving wellabout 6 mph think could get like Quiet except swish-swish-swish prop turning 330 rpm After few circuits Continued page 170 May1985 85 Bill Watson turning blimp kept tethered though flying free just case flying site between hangars parked aircraft tiniest breeze could present significant hazard Watson f lies overhead Note pyramidal water baiiasttanks helium Tillertube wfllch runs down pilot case need release gas Bill Phyllis Warner pics exceptas noted better half Warner team Phyllis flies blimp overhead Easily visible three transmission chains fiberglass pyramids containing water ballast right hand rudder crank rearvlew mirror shows rudder position bag hanging side holds equilibratorrope weights attached along its length can deployed ease landings novices Total fuselage weight about 60 lb Slow Combat model has terrible engine runs youre sure isnt fuel engine suspect tank Ive got hot tip Bob Nicks Triangle Hobbies makes various size tanks becoming standard Slow Combat also sells Eagle Slow Combat foam cores plans assort ed other Combat goodies Write him 1211 Brookgreen Dr Gary NC 27511 call 919 467-6720 several other manufacturers Ill mention later columns Charlie Johnson 3716 graham St San Diego CA 92109 619 273-6530 Geophysical Driskill-Hunton Continued page 78 fuselage add fin stabilizer parts fin should mounted slot Install bellcrank mounting plates Install hardwood dowels engine mount crosspiece bellcrank mounting plate limit bellcrank travel rear wing pin Cut elevator parts shape join Sand elevator smooth airfoil shape Apply light giass cloth center section elevator CyA Install hinge tubes epoxy using filament tape reinforcing Finish fuselage elevator assem blies fuel-proof system Make effort keep nose light since tail weight will probably have added make model balance properly Install bellcrank 0021 leadouts Lead-outs can fished through wing piece wire Install elevator elevator horn Joggle rear end pushrod extra jog fine adjustment Install engine fuel system Cut hardwood stub spars length slide fuselage Pre-fit wings can get carbon-fiber material slide %-in-wide piece over stub spar extend 3 onto main wing spar Use CyA anchoring carbon-fiber wings fuselage carbonfiber material available coat joining surfaces epoxy assemble wings Balance model center gravity approximately / ahead center main spar can make controls responsive adding weight tail moving CG rear ward small increments Geophysical light responsive flying skills rusty building sport-stunt trainer begin CG well forward slower con trol response Combat trim hands experienced flier like Larry Driskill Geophysical awesome Blimp/Warner Continued page 85 course ready come down Pedalling tends tire novice easily mentioned earlier found really too crazy about heights though flying has never bothered least before case thrill never forgotten As morning progressed wide vane ty experienced novice pilots took blimp spin Gallagher Bill Charlie Brian couple other old hands certainly rig well hand could make go exactly wanted Newcomers like wife Phyllis Bills 1 2-year-old nephew George lady ran kindergarten tcok first flights mastered ship loved minute Peripatetic Raindrop name registered ultralight aircraft flying weight 1 lb probably lightest ultralights world According Brian Allen ship . ludicrously easy train someone four times strong anything else Besides says Brian other Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marine K&B FUELSKAB GLOW PLUGS 7 Blends4 c5oices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMERKAB SUPER POXY PAINT K&B MIXING CUPS 170 ModelAviation ML & CRAFT 16th ANNUAL APRIL 27th & 28th LONG BEACH CONVENTION CENTER 300 E OCEAN BLVD LONG BEACH GENERAL ADMISSION ADULTS $400 UNDER 12 $250 / UNDER 6 FREE HOBBY CONTESTS DEMONSTRATIONS EXHIBITIONS Contest Details Local Hobby Shop through Local Club Contact MACS CONTEST DIRECTOR P0 Box 284 Westminster CA 92684 714 891-9559 MACS IS SELLING SHOW New Model Magic Products Model Magic Epoxy Plus 2 Part 8 Mm Use anywhere two part epoxy used 25% lighter Sandable Carveable Excellent Gap Filling Non Sagging Superior Strength Sands Carves Like Basswood II 6 fI oz$895 Equal over 8 wt regular epoxys See dealer firnt Ehen wriRe cBII Model MagIc PudUCtS kc P0 Don 19784 5tu MN 55119 17151425-1397 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak137 158 AMA Membership Academy Av Research & 0ev137 Ace Radio Control139 Airtronics2 Applied Design142 Astro Flight158 Balsa USA15 Blue Ridge Models146 Bru Line Industries5 Byron Originals86-86 CB Associates137 Ca Ra Products139 Carolina-Taffinder138 Johnnie Casburn Mfg143 Champion Model Products146 Chevron165 Circus Hobbies156 168 Cleveland Model & Supply Co161 Eric Clutton164 Consumers Guide47 Coverite1 Curtis Model Aircraft24 D&D Engineering151 DGA Designs161 Davey Systems Corp20 151 Larry Dodge Aero Inc164 Dodgson Designs152 Dougs Hobby Shop166-167 Du-Bro Products Inc4 FAI Model Supply153 FHS Supply Inc12 Flyline Models160 Fourmost Products136 Fox Mfg22 Fun Fly142 Futaba Corp America25 Gator RC Products138 Gemini Models157 Carl Goldberg Models13 147 Golden Gate Hobbies49 Gorham Model Products14 Great Planes Model Mfg Co162 Historic Aviation21 Hobby Barn134-1 35 Hobby Capitol Distributors159 Hobby Horn78 Hobby Lobby International9 Hobbypoxy146 Hobby World Imports170 Holleys Silent Flight151 Howard B Huebi171 Ikon Northwest Co165 Indy RC Sales Inc154-1 55 Jomar Products24 K&BMfgCo170 K&S Engineering148 K W Enterprises153 Knights Air168 Kraft Systems Inc23 Kustom Kraftsmanship147 L&L Model Products165 Lindsey Micro Products165 Lone Star Models45 Lutmi Enterprises164 MACS Products171 Master Kit162 McDaniel RC Service169 Messers Quality Model Prod171 Micro Mark24 162 Micro Model Engineering160 Micro-X-Products151 Model & Craft Show170 Model Magic Products170 Model Rectifier CorpCovers 2 & 3 Morley Helicopters USA157 Mutchiers Hobbies140-141 Nor-Cal Avionics160 North Products146 Ocean State Aeromodel Eng165 Ohio Superstar22 PK Products158 Peck-Polymers162 Penn Valley Hobby Center160 Peripheral Systems Inc149 Pica Products7 Polks Hobby8-9 Proctor Enterprises5 RC Soaring Digest148 Repla-Tech International146 Robbe Modellsport79 RoushMfg161168 SR Batteries148 S&W Hobby Supply150 Sailplanes World150 Satellite City93 Scratch-A-Plane71 Shamrock Competition Imports133 Sheldons Hobby Shop144-1 45 169 Sig Mfg Co5 ii Simplex Miniature Engines159 Southeastern Air Craft ers153 St Croix Park Falls156 Stan dale Aircraft152 Sterling Models47 Swanson Associates150 TG Mfg164 Tatone Products Co20 Tidewater Eng & Machine Co136 Top Flite Models Inc157 Tower Hobbies163 US Eagle138 VK Model Aircraft139 VL Products78 Videotech146 WE Technical Services6 Williams Brothers159 Wilshire Model Center14 Windsor Propeller Co156 World EnginesCover 4 Zenith Aviation Publications37 Nick Ziroli Models12 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX human-powered craft can flown doors Ihe possibilities model humanpowered blimps Gallagher has ased RC model looked like watermelon TV show Peck-Poly ners has quite inexpensive blimp being told more promotional stunts several countries interested military purposes Aside its eye-catching advantages advertising human-powered might set upto give rides maybe selling Polaroid shot videotape customer afterwards might have human-powered blimp race event next Olympics cant afford big ones though remember got started rubber-powered models Secrets None really Just add weight until model just hovers add just atadto bring down power runs out prop lower gas bag airship will climb naturally thrust continually pushing up nose positive angle attack Good year blimp works way vectored thrust icing cake want go RCContinued page 172 IN sTocK FOR IMMEDIATE SHIPMENT NEW RA 508$19995 New Onadra 36 col$10995 Reg Qoedre 39 $9996 Brisighella $Iywhml$11995 Reg Onadra 36 Power Aosesbly Only$6450 QUADRA REPAIR$1000 pins parts Jin Messer ERcOUPEPlANS $2396 KIT $23996 Jin Mesner TOMAHAWKPLANS $2396 KIT $36996 Jin Meson 9-BALL TRAINERPLANS $1996 KIT $19996 BALSA end BASSWOOD 111 sitesSig pioen lens 19% New ZENOAH 0-23 $13696ZENOAH 0-36 $ 9996 FLOATS 30116 noelonren $1796onnoplete kit $3996 FLOATS 49114 no1 cores $2196contpleoe kit $4796 10 WWI WHEELS 3696 PieW cyiS FLEETS$3696 PLANS SUPER STEARMAN 114 Godfrey$3996 STARDUSTER TOO 1I4Bringhelle 13 J3 CUB Nelit$2996 VOLKSPLANE 113 Chicken Cherlie$2396 COCKPIT KITS Tontahnwk F4U-1 Spitfire ME109$2396 Ernoope Fleet J3 Cob POE P47 C Eagle$2196 Cloak $2496 Zero $2696 Zero exteror$1096 US Onedra FUEL TANKS16 o $69623 n $796 FIBERGLASSARROWSHAFTS6/16o23long0l$1OO0 24-Hour Service. Add 5250 p stage Send flank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS valley view Dr. Boo 43 Allegany NY 14706 PRODUCTS FflA ThP ntcrpmuius MfliWi CE Complete Line Exhaust Systems d Pipes Muffled Tuned Pines Headers Venturi Mufflers Expansion Mufflers * Helicopter PRECISION BALANCE ALLBall Mufflers Specialized Exhaust Heres ho equipment need gwe prop 0iy best Systems balance-balance directions Carefidly crafted top grade Linsurpassad Workinan-ehin fonnaace materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Dlher sizes avadable special order [alers muted $1795 Add$ISOfen HOWARD B HUERL DEFT ODS pentege beadleg le Mis 6% ealee Pun lie C0Da Boo 92 Rt S Mankato MN 56001 May1985 171 FULL SIZE PLANS No 473 No 474 No 475 Tucano$1250 RC Sport Sosie spans 66 uses 60-75 engines Three sheets Pacer 15$500 FF 1983 FAI Class Fl World Champion Towline Glider Geophysical$400 CL Slow Combat model uses geodetic wing construction Two sheets $375 lb 133Stte CL Stunt mmlel McOnnab winnerl976 19801982 PAl Wend Cp$ Ne 281lb lkdn AC Ken Willards immatlon plane 4-channel 1 0-pnwer$125 lb 252Cmubmastho CL Crash jo-oct trainer two sizesl 5-30- 35-40-power .. lb 233See B IL pentsbe AC /4-scala hy Ilaflke tsr 91 power Prototype span 30 ft Two-and-a-half sheets$1175 Ne 362F1S AC Sarpolas 049 dected fan sport ttierfor2-channel Balsa wings tall hise structure$ 275 Na 3161330 Fleet 3bae AC SportScale 35-40 4-channel Wingspan 56 inscale Two sheets $ 625 Ne 314Drake t AC Ken willards flying beat 3-channel 1 5-power Fly front land removable gear$ 375 Ne 328Taller Cab AC Don Sruts Schoolyard-Scala br 049s 2-3 channel Spans 50 in$ 350 Ne 332 Zapbym AC Small 2-channel glider tsr hand-lasoch tow thermaL slope soaring $ 200 Ne 358 Pbceo FF Indoor Easy B Aubber-power contest-winner hy W Van Corder $100 Ne 383ClEats S2 AC Fly lIds sleek Nets winiting Sailplane AMA Mod Std Unlhnited classes$750 Ne 386Laser 200 AC Sport Scale repOca championship Aerohatic Bler Uses 40 power 4-5 channel Two sheets-$1075 Ne 318Sm Sm 81 AC flaflkes latest /4-scale spans iSis weighs 15 0, flIes 90 ar larger Foar sheets doc$2225 Ne 414BleabIc Spenky AC electric-powered fun tiler lorDS motor 3-channel AC scaled epi 939 robber-power lavoille$850 Ne 4226eetsr AC Two-Meter Sailplane has won Nats event 101982 1983 plea other contests- $550 Ne 423dud Cnisec AC Old-Timer takes 60-power 3-channel AC Two-pace wing optman tar easy transport Two sheets$1275 Ne 424Seed lent FF Emlays Enderasce robber-power fboalpiane has optional wheels stlck-and-tissan delight$ 200 Ne 426Clba Clppu AC Fabulous 74-in-span Sport Scale Ilying boat leer 1 B-size engines 4-channel Three sheets no don$2000 Ne 428Over E-Z CL Old-Timer Stunt biplane has praBle fuselage uses 25 engine$ 400 Ne438keeaMeRCZippyllttlesportsterlOiI0-lsPoweraOd3-channelAC -$ 400 Ne 431Lbheed P-35 AC Fao-scale twio-1 5-f lmr 4-channels Two sheets$1 300 Ne 432Fkeeaia CL Updated Thanderbird-style Stunter Ito- 35-40 engines -$ 575 lIe 433Wafba Up AC Electric-powered gilder tsr 2-3 channels 035 motor spans 52 in$ 450 Ne 435ThIn N AC Aerohatic biplane 40 engines 4-chasnels Great sport Ilyl$ 650 Ne 437KIqIsluc CL Profile Cantor plane spans 40/z in. noes 35 engIne$ 600 Ne 435Ciuleer FF Embryo Endurance robber-power tan slap has big-model characterlstlcs$ 200 Ne 433Deapenaic AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 Ne 440 Cavalec AC Old-Timer-like new design has hnge wing slow easy Bights 35 power 3 channels Two sheets $1 725 lb U1E WIt FF Hot small lightweight cmnpotitlso ship tsr 15 power designer Harry Murphy $ 475 Ne 442 Lang Ouch AC Big canard sport fter /nA-09 power 2 channels Uses loam board parts $ 650 Ne 444 Fbeldt AC pusher canard spartlpattem sam 40 pusher engine 4-channel Has swept-forward loam wings $ 650 Ne 445 Nesaitl Ceegac CL Scala model popular homehuilt won Nuts Uses 21 engine spans 41 in $ 925 Ne 445 La Crab AC Electric-powered sport flIer 05 motors 3-channels Two veraisos parasol cabin $ 550 Ne 447 YeA faa Amutol AC Old-Timer /sA Texaco model 049 glow 2-channels 50 Ne 443 SeAm CL SportlSlont plane 40-size 4-stroke engine builds last easy . $ 600 Ne 451 B llpbee 5ei ftC Aedesigo sleek 1937 FF biplane tsr 3-4 channels 29-40 power Two sheets $1175 lb 452 Bee Sm Z AC Osarter-scale spans 71 ses 90 power Foor sheets $1 600 $ 550 lb 453 Smeeflde meSa CL Prsfilo rendition 01 Bob Palmers supor-Stunter 01 early Fitties tsr 35 power $ 2011 lb 454Sweet P-30 FF Neat stich-and-tissue Ouldoor Aubber P-3D-class model isa coolest-winner Ne 458HfTeeh 2851 AC Dacted-tan lotaristic-leoking canard 25-size engines Built-up construction Three sheets$1175 Ne 457Speoha AC Electric-power 05-size motor uses 3 different wings sport soaring aerobatics$ 700 lb 458Beenllena CL Profile Canter 1 5-power events Two sheets$ 575 lb 453Sky renault FF Aebber-power old-timer designed Joc Ott 1932$ 300 Na 450440 AC Shoulder-wing spud Bier 4-cycle 40-size engine 4 channels$ 650 lb 461Tifabo Sanoateneec CL Famous untlapped Stunter late Farties Uses 35 engine$ 650 Ne 462Paula PE FF Jumbo Aubber Scale 01 WW taken observation plane$ 400 $ 475 lb 463Pletylmehletbea Vt AC mA Pylon racer uses lots ito ply built-up struclore tar strength lightness$ 325 lb 454Suedaecem CL bA sport flier all-sheet-balsa can use Tee Dee 049 lb 455Wee Mast AC Fuo-fly sportster 40-size engines spans 52 Lightweight strectare$ 700 lb 456CeuepeNfer CLStanterfor 60 power has 850 sq wing urea$ 575 Na 467Aloe Spent FF Aubber Scale desigo won 63 Nuts tar designer Don Srall Wingspan 2610$ 250 Ne 468Smeethe CL Stunter 29135 power Design bused hybrid SmoothielNebler$ 675 lb 463Sm Ktohet AC Sport Scale rendering Polish hmneboitl pusher Spans 75 uses 40-size 4-cycle engion Four sheets$2075 lb 470Slreher AC Mld-wlng sportster uses 40145 four-stroke engine spans 50/o tail-dragger$ 650 $ 575 lb 471Negas Aetaa CL Profile Stunt trainer spans 54 uses 35140 engine Flapped wing$ 550 lb 472Peracraft AC Craft has flesible paroled wing uses 3 AC channels 60 engine. 0 us n cJ 0t C 60 Zus 030 c us - 0 V us c0- 0 usus CV mm V o-t us 0 us V 0us 0 0us 0us c Ous ea 03 uC 03 STATE II Circle numbers plans wish order 193 326 422 432 441 451 459 466 473 239 332 423 433 442 452 460 467 474 262 358 424 435 444 453 461 468 475 299 383 426 437 445 454 462 469 302 386 429 438 446 456 463 470 Plan pnlce lacledes first class pinup tt US delvery wMch Alt MaE over 300 laNes l stun gutsMs fits US. please add $250 Air Mail $1 25 surface mail 310 398 430 439 447 457 464 471 314 414 431 440 449 458 465 472 0 Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Or, 1165100 VA 22090 Please allow 3 6 weeks delivery Please print carefullyEnclosed $__________________________________ NAME STREET CITY ZIP Happy flying stay out cactus Editor March 1981 Model viadon contained two excellent articles RC model airships Slow Year Blimp Lou Bruhn Summer Breeze Balloon Luther Hux Elec Floatplanes/PoIing Continued page 92 pieces area behind step should go first large piece area front step Allow generous overlap between two Cover top last Accept inevitable wrinides float curved hard get away few cant seen air anyway water rudder handy steering especially after landing have - get plane back shore breeze have taxi crosswind downwind can almost impossible water rudder can have enough power get plane step air rudder effective Personal ly have bad habit flying long can have enough power idle back displacement mode displace ment mode air rudder doesnt much short power blasts will help mentioned dont land enough power left use 3 sq water rudder 590 sq plane can scale other sizes using ratio wing rudder area water rudder attached directly air rudder simplicity Look closely photo can see rudder made music wire bent rectangular U plastic sheet surface taped together clear package wrap ping tape available stationety stores Part music wire left vertical stub matching stub attached rudder wheel collar joins wheel collar wonderful allows both side-to-side vertical adjustment rudder rudder should adjusted vertically top just out water plane sitting water no power Under power plane rocks back floats rudder well underwaterbut step rudder completely out water no drag Clever did water rudder years because drag severe enough prevent taking off finally simple system popped mind Now have benefits problems Another potential problem effect water rudder drag rudder hinges can severe provide tube rudder stub go through attached fuselage relieve drag pressure Enough now Next month will get final setup tips techniques - water flying Get plane ready continued 172 ModelAviation
Edition: Model Aviation - 1985/05
Page Numbers: 80, 81, 82, 83, 84, 85, 170, 171, 172
NO OCR TEXT NO OCR TEXT balloon envelope putting gon dola made material Styrofoam egg carton directly balloon vinyl electricians tape motor stick balsa business end power supply balsa stick aluminum tube bearing prop kids made stack balsa laminations fanned out glued sanded pinch wed use heavier plastic prop fins cut construction paper stuck Magic Mending Tape About 2-ft loop 1/16-in rubber would give flights lasting 2 min aroom 12-ft ceiling blimps bounce off walls few years later Bill Watson making Radio Control blimps some sophistication sight behold Pasadena IM Show dozen-footlong Golden Football used 48 cubic feet helium welcome relief flam mable hydrogen provide lift Helium lifts little less hydrogen whole lot safer Too bad Hinden burg designed bags helium sur rounding hydrogen cores wasnt able get last resort used hydrogren way almost way disastrous consequences know well Helium lifts little less 1 oz per cu ft quite bit can hot air fuselage Golden Football suspended about foot beneath shining eight-gore DuPont Kapton Key lar film bag electric motor Astro 02 rigged rudder-aided directional control Longitudinal control stability came fixed stabilizer rear movable like diving planes submarine front carried 5 oz water ballast motor could con trolled give reverse flight Try winged RC airplane nice feature design release mechan ism dropping things like small hang gliders altitude Bills rcent RC blimp drops things too much smaller practical small gyms carries 17 cu ft helium its aluminized Mylar bag oovering Saran-coated seals easily heat Bill says doesnt know can get though high-tech mate rials came him via team built famous Gossamer Albatross Gossa mer Condor Bill apart both projects knows about super-light oon struction almost anyone know entire aluminized blimp 6 ft long has 3 oz material gas bag two-gore designsimple make having lots wrinkles critical fly 3 mph three-channel radio operates motor speed power motor like type used servos thrust vectoring up down rudder rudder tied gimballed motor mount applying rudder moves motor thrust sideways give turns proverbial dime up down control provides range thrust straight up straight down maneuverable 82 Model Aviation van delivered cylinder helium top off airship hazards ot buy ing pig poke tank proved empty Water ballast added front tank ship will weigh about pound individual pilot before being flown Watsons latest RC blimp Indoor flying equipped drop PF hang glider up nearthe ceiling Electric motor power swivels directions altitude turn control miunareds kids have made model blimps like authors classes over last 15 yearsmainly due Bill Watsons inspiration assistance rubber-powered model guaranteed fly crash just means bouncing off wall Styrofoam gondola often pressed illto service retrieve Peanut Scale microfilm-covered ships overhead lights Paul Revere Junior High School Indoor meets Long interested human power Bill helping build Paul Mac Cready Gossamers also hang gliders bicycles speed record attempts Ontario Raceway shells racing bicycles inventiveness eventually brought him contact top people human-powered vehicles also got him building unusual stuff movies Radio Control ptero dactyl movie War Games contact changed life meeting popular comedian Gallagher Gallagher run-of-the-mill comic highly-imaginative creative phil osopher love humanity na ture drives him some pretty zany demonstrations idea non-pollut ing little cloud could pedalled about process provide vehicle getting people look skyward think about what doing air born Bill given carte blanche make though copythe golden age blimp having peaked some 75 years earlier Drawing model experience Bill did basic design workkicking around ideas Blame Rawdon Bart Hibbs provided invaluable assistance stress analysis configuration com puter-designing prop ala Larrabee know about computerdesigned props An order placed Raven firm makes types hot-air gas-filled envelopes tear drop-shaped envelope ripstop nylon urethane coating made 16 gores gores less wrinldes fewer wrinides less drag finished bag 47 ft long weighs neighborhood 60 lb Brian Allen pilot power plant great Gossamer ffights incidentally winner prize money pilot history doing Charlie Sink graduates Aeroplanes Flying Machines class called work Bill fuselage Built 2024 T-3 aluminum alloy tubing 7075-0 gussets fuselage tremen dously strong gussets pressureformed dies Bill made poprivets fasten tubes Warren-truss configuration prop has spruce spar main blades made Styrofoam prop driven pedal crank standard bicycle chain connec ted two plastic-cable chains sort used Gossamers lever pilots left controls vectoring propeller thrust up downnot much RC blimp enough make difference between climb descent small crank pilots right controls rudder position monitored small rear-view mirror rudder itself features Styro foam rib cores spruce cap strips May1985 83 F- NW Back 19605 Bill Watson introduced kids lighter-than-air flying models Aero planes Plying Machines class summer science workshops California Museum Science industry Los Angeles Now hes made person-powered Bill Watsons rubber-powered blimps early 1970s Bag made two gores drycleaners bag Flightsof several mlnuteswere possible undera ratheriowceiling Bill Watson rides airship walked its flying site Camarillo Airport Hes riding because ship needs bailast novice can fly after brief Instruction period double-covered thin Mylar film Total weights compensate carrying different fuselage weight 60 lb loads wide variation pilot Ballast tanks fore aft fiber- weights An equilibrator consisting glass can emptied water about several lead weights rope normally minute pilot Easily-attached lead carried bag side fuselage Until new pilot has few flights under belt hung down under airship too-rapid descent becomes docile touch down lengths rope contacting ground progressively light ens craft much-appreciated feature pilots free-flying gas balloons retrievable ballast model airplane motor prop adorn front fuselage belt-drive Astro 40 18-6 prop can turned right left pilot theory used help sharp corners buck headwinds practice has little effect may removed future Instrumentation includes audible va riometer buzz pitches higher go up airspeed indicator bag pressure indicator FM radio ground communication Actually yelling between craft ground makes radio unnecessary airship makes no noise compete yell attachment cords between fuse lage envelope Kevlar surrounded Dacron ultraviolet protection abrasion resistance Reinforced round patches glued gas bag distribute load reality large safety factor having minimum number attachment cords seat belt has backup should come un buckled Inflating bag takes lot gas 16ft diameter bag requires over 20 tanks helium about 6000 cu ft price helium does bother Watsons RC electric-powered blimp named Golden Footballas seen rear Motor attached rudder better direc tional control Rear surfaces fixed front planes controllable Photo Don Monroe Right Bill Watson L adjusts ballast forGalla gher about take flight Gallagher successful TV comedian philosopher wants people take notice Little White Cloud stop polluting air Brian Allen Gossamer Condor Albatross fame calls ship ultimate ultralight trainer 84 Model Aviation $13000 just envelope may start thinking terms smaller model blimp Bill now building smaller livingroom version RC Electric arrived Camarillo Airport first glimpse magnificent airship early morning cant fly wind dead-calm about 7 am 10 am about can day Houston Astrodome can fly anytime top speed around 9 mph cruse 7 mph mercy elements airship temporarily nicknamed White Dwarf pending contest officially name walked out flying spot few hundred feet wide bounded hangars airplanes tether rope some 50 70 ft attached just case gust miscalcula tion should imperil ship left slack blimp would fly its own After couple shakedown flights Bill Watson graciously consented let have go will admit being absolutely fearless right up time about 40 ft off ground discovered incipient acrophobia person going make its presence felt rig Before liftoff bag pressure about two four hundredths pound per square inch checked auto matic valve let out excess pressure gets too great pilot has access normal seldom used pressure release valve No problem Bill Brian adjust water levels ballast tanks make ship about 1 lb heavier its hover ing weight zero After weighing off its time pedal prop pointing upward climb plane lever approximates plane prop rotation know much vectoring giving takes pedalling take effect ship responds thrust rudder changes what seems about 15-sec delay Still cares stopped pedalling took stock what next ship just hung Fantastic Well lets center rudder go pedal harder go faster pedal backwards slowly stop begin backup blades prop adjustable ground new lower-pitch setting used day says Bill gives better speed both directions What view up may slow its sure sitting front TV set two seat belts felt good though balancing narrow fiberglass semirecumbent seat Rudder hard over moving wellabout 6 mph think could get like Quiet except swish-swish-swish prop turning 330 rpm After few circuits Continued page 170 May1985 85 Bill Watson turning blimp kept tethered though flying free just case flying site between hangars parked aircraft tiniest breeze could present significant hazard Watson f lies overhead Note pyramidal water baiiasttanks helium Tillertube wfllch runs down pilot case need release gas Bill Phyllis Warner pics exceptas noted better half Warner team Phyllis flies blimp overhead Easily visible three transmission chains fiberglass pyramids containing water ballast right hand rudder crank rearvlew mirror shows rudder position bag hanging side holds equilibratorrope weights attached along its length can deployed ease landings novices Total fuselage weight about 60 lb Slow Combat model has terrible engine runs youre sure isnt fuel engine suspect tank Ive got hot tip Bob Nicks Triangle Hobbies makes various size tanks becoming standard Slow Combat also sells Eagle Slow Combat foam cores plans assort ed other Combat goodies Write him 1211 Brookgreen Dr Gary NC 27511 call 919 467-6720 several other manufacturers Ill mention later columns Charlie Johnson 3716 graham St San Diego CA 92109 619 273-6530 Geophysical Driskill-Hunton Continued page 78 fuselage add fin stabilizer parts fin should mounted slot Install bellcrank mounting plates Install hardwood dowels engine mount crosspiece bellcrank mounting plate limit bellcrank travel rear wing pin Cut elevator parts shape join Sand elevator smooth airfoil shape Apply light giass cloth center section elevator CyA Install hinge tubes epoxy using filament tape reinforcing Finish fuselage elevator assem blies fuel-proof system Make effort keep nose light since tail weight will probably have added make model balance properly Install bellcrank 0021 leadouts Lead-outs can fished through wing piece wire Install elevator elevator horn Joggle rear end pushrod extra jog fine adjustment Install engine fuel system Cut hardwood stub spars length slide fuselage Pre-fit wings can get carbon-fiber material slide %-in-wide piece over stub spar extend 3 onto main wing spar Use CyA anchoring carbon-fiber wings fuselage carbonfiber material available coat joining surfaces epoxy assemble wings Balance model center gravity approximately / ahead center main spar can make controls responsive adding weight tail moving CG rear ward small increments Geophysical light responsive flying skills rusty building sport-stunt trainer begin CG well forward slower con trol response Combat trim hands experienced flier like Larry Driskill Geophysical awesome Blimp/Warner Continued page 85 course ready come down Pedalling tends tire novice easily mentioned earlier found really too crazy about heights though flying has never bothered least before case thrill never forgotten As morning progressed wide vane ty experienced novice pilots took blimp spin Gallagher Bill Charlie Brian couple other old hands certainly rig well hand could make go exactly wanted Newcomers like wife Phyllis Bills 1 2-year-old nephew George lady ran kindergarten tcok first flights mastered ship loved minute Peripatetic Raindrop name registered ultralight aircraft flying weight 1 lb probably lightest ultralights world According Brian Allen ship . ludicrously easy train someone four times strong anything else Besides says Brian other Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marine K&B FUELSKAB GLOW PLUGS 7 Blends4 c5oices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMERKAB SUPER POXY PAINT K&B MIXING CUPS 170 ModelAviation ML & CRAFT 16th ANNUAL APRIL 27th & 28th LONG BEACH CONVENTION CENTER 300 E OCEAN BLVD LONG BEACH GENERAL ADMISSION ADULTS $400 UNDER 12 $250 / UNDER 6 FREE HOBBY CONTESTS DEMONSTRATIONS EXHIBITIONS Contest Details Local Hobby Shop through Local Club Contact MACS CONTEST DIRECTOR P0 Box 284 Westminster CA 92684 714 891-9559 MACS IS SELLING SHOW New Model Magic Products Model Magic Epoxy Plus 2 Part 8 Mm Use anywhere two part epoxy used 25% lighter Sandable Carveable Excellent Gap Filling Non Sagging Superior Strength Sands Carves Like Basswood II 6 fI oz$895 Equal over 8 wt regular epoxys See dealer firnt Ehen wriRe cBII Model MagIc PudUCtS kc P0 Don 19784 5tu MN 55119 17151425-1397 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak137 158 AMA Membership Academy Av Research & 0ev137 Ace Radio Control139 Airtronics2 Applied Design142 Astro Flight158 Balsa USA15 Blue Ridge Models146 Bru Line Industries5 Byron Originals86-86 CB Associates137 Ca Ra Products139 Carolina-Taffinder138 Johnnie Casburn Mfg143 Champion Model Products146 Chevron165 Circus Hobbies156 168 Cleveland Model & Supply Co161 Eric Clutton164 Consumers Guide47 Coverite1 Curtis Model Aircraft24 D&D Engineering151 DGA Designs161 Davey Systems Corp20 151 Larry Dodge Aero Inc164 Dodgson Designs152 Dougs Hobby Shop166-167 Du-Bro Products Inc4 FAI Model Supply153 FHS Supply Inc12 Flyline Models160 Fourmost Products136 Fox Mfg22 Fun Fly142 Futaba Corp America25 Gator RC Products138 Gemini Models157 Carl Goldberg Models13 147 Golden Gate Hobbies49 Gorham Model Products14 Great Planes Model Mfg Co162 Historic Aviation21 Hobby Barn134-1 35 Hobby Capitol Distributors159 Hobby Horn78 Hobby Lobby International9 Hobbypoxy146 Hobby World Imports170 Holleys Silent Flight151 Howard B Huebi171 Ikon Northwest Co165 Indy RC Sales Inc154-1 55 Jomar Products24 K&BMfgCo170 K&S Engineering148 K W Enterprises153 Knights Air168 Kraft Systems Inc23 Kustom Kraftsmanship147 L&L Model Products165 Lindsey Micro Products165 Lone Star Models45 Lutmi Enterprises164 MACS Products171 Master Kit162 McDaniel RC Service169 Messers Quality Model Prod171 Micro Mark24 162 Micro Model Engineering160 Micro-X-Products151 Model & Craft Show170 Model Magic Products170 Model Rectifier CorpCovers 2 & 3 Morley Helicopters USA157 Mutchiers Hobbies140-141 Nor-Cal Avionics160 North Products146 Ocean State Aeromodel Eng165 Ohio Superstar22 PK Products158 Peck-Polymers162 Penn Valley Hobby Center160 Peripheral Systems Inc149 Pica Products7 Polks Hobby8-9 Proctor Enterprises5 RC Soaring Digest148 Repla-Tech International146 Robbe Modellsport79 RoushMfg161168 SR Batteries148 S&W Hobby Supply150 Sailplanes World150 Satellite City93 Scratch-A-Plane71 Shamrock Competition Imports133 Sheldons Hobby Shop144-1 45 169 Sig Mfg Co5 ii Simplex Miniature Engines159 Southeastern Air Craft ers153 St Croix Park Falls156 Stan dale Aircraft152 Sterling Models47 Swanson Associates150 TG Mfg164 Tatone Products Co20 Tidewater Eng & Machine Co136 Top Flite Models Inc157 Tower Hobbies163 US Eagle138 VK Model Aircraft139 VL Products78 Videotech146 WE Technical Services6 Williams Brothers159 Wilshire Model Center14 Windsor Propeller Co156 World EnginesCover 4 Zenith Aviation Publications37 Nick Ziroli Models12 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX human-powered craft can flown doors Ihe possibilities model humanpowered blimps Gallagher has ased RC model looked like watermelon TV show Peck-Poly ners has quite inexpensive blimp being told more promotional stunts several countries interested military purposes Aside its eye-catching advantages advertising human-powered might set upto give rides maybe selling Polaroid shot videotape customer afterwards might have human-powered blimp race event next Olympics cant afford big ones though remember got started rubber-powered models Secrets None really Just add weight until model just hovers add just atadto bring down power runs out prop lower gas bag airship will climb naturally thrust continually pushing up nose positive angle attack Good year blimp works way vectored thrust icing cake want go RCContinued page 172 IN sTocK FOR IMMEDIATE SHIPMENT NEW RA 508$19995 New Onadra 36 col$10995 Reg Qoedre 39 $9996 Brisighella $Iywhml$11995 Reg Onadra 36 Power Aosesbly Only$6450 QUADRA REPAIR$1000 pins parts Jin Messer ERcOUPEPlANS $2396 KIT $23996 Jin Mesner TOMAHAWKPLANS $2396 KIT $36996 Jin Meson 9-BALL TRAINERPLANS $1996 KIT $19996 BALSA end BASSWOOD 111 sitesSig pioen lens 19% New ZENOAH 0-23 $13696ZENOAH 0-36 $ 9996 FLOATS 30116 noelonren $1796onnoplete kit $3996 FLOATS 49114 no1 cores $2196contpleoe kit $4796 10 WWI WHEELS 3696 PieW cyiS FLEETS$3696 PLANS SUPER STEARMAN 114 Godfrey$3996 STARDUSTER TOO 1I4Bringhelle 13 J3 CUB Nelit$2996 VOLKSPLANE 113 Chicken Cherlie$2396 COCKPIT KITS Tontahnwk F4U-1 Spitfire ME109$2396 Ernoope Fleet J3 Cob POE P47 C Eagle$2196 Cloak $2496 Zero $2696 Zero exteror$1096 US Onedra FUEL TANKS16 o $69623 n $796 FIBERGLASSARROWSHAFTS6/16o23long0l$1OO0 24-Hour Service. Add 5250 p stage Send flank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS valley view Dr. Boo 43 Allegany NY 14706 PRODUCTS FflA ThP ntcrpmuius MfliWi CE Complete Line Exhaust Systems d Pipes Muffled Tuned Pines Headers Venturi Mufflers Expansion Mufflers * Helicopter PRECISION BALANCE ALLBall Mufflers Specialized Exhaust Heres ho equipment need gwe prop 0iy best Systems balance-balance directions Carefidly crafted top grade Linsurpassad Workinan-ehin fonnaace materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Dlher sizes avadable special order [alers muted $1795 Add$ISOfen HOWARD B HUERL DEFT ODS pentege beadleg le Mis 6% ealee Pun lie C0Da Boo 92 Rt S Mankato MN 56001 May1985 171 FULL SIZE PLANS No 473 No 474 No 475 Tucano$1250 RC Sport Sosie spans 66 uses 60-75 engines Three sheets Pacer 15$500 FF 1983 FAI Class Fl World Champion Towline Glider Geophysical$400 CL Slow Combat model uses geodetic wing construction Two sheets $375 lb 133Stte CL Stunt mmlel McOnnab winnerl976 19801982 PAl Wend Cp$ Ne 281lb lkdn AC Ken Willards immatlon plane 4-channel 1 0-pnwer$125 lb 252Cmubmastho CL Crash jo-oct trainer two sizesl 5-30- 35-40-power .. lb 233See B IL pentsbe AC /4-scala hy Ilaflke tsr 91 power Prototype span 30 ft Two-and-a-half sheets$1175 Ne 362F1S AC Sarpolas 049 dected fan sport ttierfor2-channel Balsa wings tall hise structure$ 275 Na 3161330 Fleet 3bae AC SportScale 35-40 4-channel Wingspan 56 inscale Two sheets $ 625 Ne 314Drake t AC Ken willards flying beat 3-channel 1 5-power Fly front land removable gear$ 375 Ne 328Taller Cab AC Don Sruts Schoolyard-Scala br 049s 2-3 channel Spans 50 in$ 350 Ne 332 Zapbym AC Small 2-channel glider tsr hand-lasoch tow thermaL slope soaring $ 200 Ne 358 Pbceo FF Indoor Easy B Aubber-power contest-winner hy W Van Corder $100 Ne 383ClEats S2 AC Fly lIds sleek Nets winiting Sailplane AMA Mod Std Unlhnited classes$750 Ne 386Laser 200 AC Sport Scale repOca championship Aerohatic Bler Uses 40 power 4-5 channel Two sheets-$1075 Ne 318Sm Sm 81 AC flaflkes latest /4-scale spans iSis weighs 15 0, flIes 90 ar larger Foar sheets doc$2225 Ne 414BleabIc Spenky AC electric-powered fun tiler lorDS motor 3-channel AC scaled epi 939 robber-power lavoille$850 Ne 4226eetsr AC Two-Meter Sailplane has won Nats event 101982 1983 plea other contests- $550 Ne 423dud Cnisec AC Old-Timer takes 60-power 3-channel AC Two-pace wing optman tar easy transport Two sheets$1275 Ne 424Seed lent FF Emlays Enderasce robber-power fboalpiane has optional wheels stlck-and-tissan delight$ 200 Ne 426Clba Clppu AC Fabulous 74-in-span Sport Scale Ilying boat leer 1 B-size engines 4-channel Three sheets no don$2000 Ne 428Over E-Z CL Old-Timer Stunt biplane has praBle fuselage uses 25 engine$ 400 Ne438keeaMeRCZippyllttlesportsterlOiI0-lsPoweraOd3-channelAC -$ 400 Ne 431Lbheed P-35 AC Fao-scale twio-1 5-f lmr 4-channels Two sheets$1 300 Ne 432Fkeeaia CL Updated Thanderbird-style Stunter Ito- 35-40 engines -$ 575 lIe 433Wafba Up AC Electric-powered gilder tsr 2-3 channels 035 motor spans 52 in$ 450 Ne 435ThIn N AC Aerohatic biplane 40 engines 4-chasnels Great sport Ilyl$ 650 Ne 437KIqIsluc CL Profile Cantor plane spans 40/z in. noes 35 engIne$ 600 Ne 435Ciuleer FF Embryo Endurance robber-power tan slap has big-model characterlstlcs$ 200 Ne 433Deapenaic AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 Ne 440 Cavalec AC Old-Timer-like new design has hnge wing slow easy Bights 35 power 3 channels Two sheets $1 725 lb U1E WIt FF Hot small lightweight cmnpotitlso ship tsr 15 power designer Harry Murphy $ 475 Ne 442 Lang Ouch AC Big canard sport fter /nA-09 power 2 channels Uses loam board parts $ 650 Ne 444 Fbeldt AC pusher canard spartlpattem sam 40 pusher engine 4-channel Has swept-forward loam wings $ 650 Ne 445 Nesaitl Ceegac CL Scala model popular homehuilt won Nuts Uses 21 engine spans 41 in $ 925 Ne 445 La Crab AC Electric-powered sport flIer 05 motors 3-channels Two veraisos parasol cabin $ 550 Ne 447 YeA faa Amutol AC Old-Timer /sA Texaco model 049 glow 2-channels 50 Ne 443 SeAm CL SportlSlont plane 40-size 4-stroke engine builds last easy . $ 600 Ne 451 B llpbee 5ei ftC Aedesigo sleek 1937 FF biplane tsr 3-4 channels 29-40 power Two sheets $1175 lb 452 Bee Sm Z AC Osarter-scale spans 71 ses 90 power Foor sheets $1 600 $ 550 lb 453 Smeeflde meSa CL Prsfilo rendition 01 Bob Palmers supor-Stunter 01 early Fitties tsr 35 power $ 2011 lb 454Sweet P-30 FF Neat stich-and-tissue Ouldoor Aubber P-3D-class model isa coolest-winner Ne 458HfTeeh 2851 AC Dacted-tan lotaristic-leoking canard 25-size engines Built-up construction Three sheets$1175 Ne 457Speoha AC Electric-power 05-size motor uses 3 different wings sport soaring aerobatics$ 700 lb 458Beenllena CL Profile Canter 1 5-power events Two sheets$ 575 lb 453Sky renault FF Aebber-power old-timer designed Joc Ott 1932$ 300 Na 450440 AC Shoulder-wing spud Bier 4-cycle 40-size engine 4 channels$ 650 lb 461Tifabo Sanoateneec CL Famous untlapped Stunter late Farties Uses 35 engine$ 650 Ne 462Paula PE FF Jumbo Aubber Scale 01 WW taken observation plane$ 400 $ 475 lb 463Pletylmehletbea Vt AC mA Pylon racer uses lots ito ply built-up struclore tar strength lightness$ 325 lb 454Suedaecem CL bA sport flier all-sheet-balsa can use Tee Dee 049 lb 455Wee Mast AC Fuo-fly sportster 40-size engines spans 52 Lightweight strectare$ 700 lb 456CeuepeNfer CLStanterfor 60 power has 850 sq wing urea$ 575 Na 467Aloe Spent FF Aubber Scale desigo won 63 Nuts tar designer Don Srall Wingspan 2610$ 250 Ne 468Smeethe CL Stunter 29135 power Design bused hybrid SmoothielNebler$ 675 lb 463Sm Ktohet AC Sport Scale rendering Polish hmneboitl pusher Spans 75 uses 40-size 4-cycle engion Four sheets$2075 lb 470Slreher AC Mld-wlng sportster uses 40145 four-stroke engine spans 50/o tail-dragger$ 650 $ 575 lb 471Negas Aetaa CL Profile Stunt trainer spans 54 uses 35140 engine Flapped wing$ 550 lb 472Peracraft AC Craft has flesible paroled wing uses 3 AC channels 60 engine. 0 us n cJ 0t C 60 Zus 030 c us - 0 V us c0- 0 usus CV mm V o-t us 0 us V 0us 0 0us 0us c Ous ea 03 uC 03 STATE II Circle numbers plans wish order 193 326 422 432 441 451 459 466 473 239 332 423 433 442 452 460 467 474 262 358 424 435 444 453 461 468 475 299 383 426 437 445 454 462 469 302 386 429 438 446 456 463 470 Plan pnlce lacledes first class pinup tt US delvery wMch Alt MaE over 300 laNes l stun gutsMs fits US. please add $250 Air Mail $1 25 surface mail 310 398 430 439 447 457 464 471 314 414 431 440 449 458 465 472 0 Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Or, 1165100 VA 22090 Please allow 3 6 weeks delivery Please print carefullyEnclosed $__________________________________ NAME STREET CITY ZIP Happy flying stay out cactus Editor March 1981 Model viadon contained two excellent articles RC model airships Slow Year Blimp Lou Bruhn Summer Breeze Balloon Luther Hux Elec Floatplanes/PoIing Continued page 92 pieces area behind step should go first large piece area front step Allow generous overlap between two Cover top last Accept inevitable wrinides float curved hard get away few cant seen air anyway water rudder handy steering especially after landing have - get plane back shore breeze have taxi crosswind downwind can almost impossible water rudder can have enough power get plane step air rudder effective Personal ly have bad habit flying long can have enough power idle back displacement mode displace ment mode air rudder doesnt much short power blasts will help mentioned dont land enough power left use 3 sq water rudder 590 sq plane can scale other sizes using ratio wing rudder area water rudder attached directly air rudder simplicity Look closely photo can see rudder made music wire bent rectangular U plastic sheet surface taped together clear package wrap ping tape available stationety stores Part music wire left vertical stub matching stub attached rudder wheel collar joins wheel collar wonderful allows both side-to-side vertical adjustment rudder rudder should adjusted vertically top just out water plane sitting water no power Under power plane rocks back floats rudder well underwaterbut step rudder completely out water no drag Clever did water rudder years because drag severe enough prevent taking off finally simple system popped mind Now have benefits problems Another potential problem effect water rudder drag rudder hinges can severe provide tube rudder stub go through attached fuselage relieve drag pressure Enough now Next month will get final setup tips techniques - water flying Get plane ready continued 172 ModelAviation
Edition: Model Aviation - 1985/05
Page Numbers: 80, 81, 82, 83, 84, 85, 170, 171, 172
NO OCR TEXT NO OCR TEXT balloon envelope putting gon dola made material Styrofoam egg carton directly balloon vinyl electricians tape motor stick balsa business end power supply balsa stick aluminum tube bearing prop kids made stack balsa laminations fanned out glued sanded pinch wed use heavier plastic prop fins cut construction paper stuck Magic Mending Tape About 2-ft loop 1/16-in rubber would give flights lasting 2 min aroom 12-ft ceiling blimps bounce off walls few years later Bill Watson making Radio Control blimps some sophistication sight behold Pasadena IM Show dozen-footlong Golden Football used 48 cubic feet helium welcome relief flam mable hydrogen provide lift Helium lifts little less hydrogen whole lot safer Too bad Hinden burg designed bags helium sur rounding hydrogen cores wasnt able get last resort used hydrogren way almost way disastrous consequences know well Helium lifts little less 1 oz per cu ft quite bit can hot air fuselage Golden Football suspended about foot beneath shining eight-gore DuPont Kapton Key lar film bag electric motor Astro 02 rigged rudder-aided directional control Longitudinal control stability came fixed stabilizer rear movable like diving planes submarine front carried 5 oz water ballast motor could con trolled give reverse flight Try winged RC airplane nice feature design release mechan ism dropping things like small hang gliders altitude Bills rcent RC blimp drops things too much smaller practical small gyms carries 17 cu ft helium its aluminized Mylar bag oovering Saran-coated seals easily heat Bill says doesnt know can get though high-tech mate rials came him via team built famous Gossamer Albatross Gossa mer Condor Bill apart both projects knows about super-light oon struction almost anyone know entire aluminized blimp 6 ft long has 3 oz material gas bag two-gore designsimple make having lots wrinkles critical fly 3 mph three-channel radio operates motor speed power motor like type used servos thrust vectoring up down rudder rudder tied gimballed motor mount applying rudder moves motor thrust sideways give turns proverbial dime up down control provides range thrust straight up straight down maneuverable 82 Model Aviation van delivered cylinder helium top off airship hazards ot buy ing pig poke tank proved empty Water ballast added front tank ship will weigh about pound individual pilot before being flown Watsons latest RC blimp Indoor flying equipped drop PF hang glider up nearthe ceiling Electric motor power swivels directions altitude turn control miunareds kids have made model blimps like authors classes over last 15 yearsmainly due Bill Watsons inspiration assistance rubber-powered model guaranteed fly crash just means bouncing off wall Styrofoam gondola often pressed illto service retrieve Peanut Scale microfilm-covered ships overhead lights Paul Revere Junior High School Indoor meets Long interested human power Bill helping build Paul Mac Cready Gossamers also hang gliders bicycles speed record attempts Ontario Raceway shells racing bicycles inventiveness eventually brought him contact top people human-powered vehicles also got him building unusual stuff movies Radio Control ptero dactyl movie War Games contact changed life meeting popular comedian Gallagher Gallagher run-of-the-mill comic highly-imaginative creative phil osopher love humanity na ture drives him some pretty zany demonstrations idea non-pollut ing little cloud could pedalled about process provide vehicle getting people look skyward think about what doing air born Bill given carte blanche make though copythe golden age blimp having peaked some 75 years earlier Drawing model experience Bill did basic design workkicking around ideas Blame Rawdon Bart Hibbs provided invaluable assistance stress analysis configuration com puter-designing prop ala Larrabee know about computerdesigned props An order placed Raven firm makes types hot-air gas-filled envelopes tear drop-shaped envelope ripstop nylon urethane coating made 16 gores gores less wrinldes fewer wrinides less drag finished bag 47 ft long weighs neighborhood 60 lb Brian Allen pilot power plant great Gossamer ffights incidentally winner prize money pilot history doing Charlie Sink graduates Aeroplanes Flying Machines class called work Bill fuselage Built 2024 T-3 aluminum alloy tubing 7075-0 gussets fuselage tremen dously strong gussets pressureformed dies Bill made poprivets fasten tubes Warren-truss configuration prop has spruce spar main blades made Styrofoam prop driven pedal crank standard bicycle chain connec ted two plastic-cable chains sort used Gossamers lever pilots left controls vectoring propeller thrust up downnot much RC blimp enough make difference between climb descent small crank pilots right controls rudder position monitored small rear-view mirror rudder itself features Styro foam rib cores spruce cap strips May1985 83 F- NW Back 19605 Bill Watson introduced kids lighter-than-air flying models Aero planes Plying Machines class summer science workshops California Museum Science industry Los Angeles Now hes made person-powered Bill Watsons rubber-powered blimps early 1970s Bag made two gores drycleaners bag Flightsof several mlnuteswere possible undera ratheriowceiling Bill Watson rides airship walked its flying site Camarillo Airport Hes riding because ship needs bailast novice can fly after brief Instruction period double-covered thin Mylar film Total weights compensate carrying different fuselage weight 60 lb loads wide variation pilot Ballast tanks fore aft fiber- weights An equilibrator consisting glass can emptied water about several lead weights rope normally minute pilot Easily-attached lead carried bag side fuselage Until new pilot has few flights under belt hung down under airship too-rapid descent becomes docile touch down lengths rope contacting ground progressively light ens craft much-appreciated feature pilots free-flying gas balloons retrievable ballast model airplane motor prop adorn front fuselage belt-drive Astro 40 18-6 prop can turned right left pilot theory used help sharp corners buck headwinds practice has little effect may removed future Instrumentation includes audible va riometer buzz pitches higher go up airspeed indicator bag pressure indicator FM radio ground communication Actually yelling between craft ground makes radio unnecessary airship makes no noise compete yell attachment cords between fuse lage envelope Kevlar surrounded Dacron ultraviolet protection abrasion resistance Reinforced round patches glued gas bag distribute load reality large safety factor having minimum number attachment cords seat belt has backup should come un buckled Inflating bag takes lot gas 16ft diameter bag requires over 20 tanks helium about 6000 cu ft price helium does bother Watsons RC electric-powered blimp named Golden Footballas seen rear Motor attached rudder better direc tional control Rear surfaces fixed front planes controllable Photo Don Monroe Right Bill Watson L adjusts ballast forGalla gher about take flight Gallagher successful TV comedian philosopher wants people take notice Little White Cloud stop polluting air Brian Allen Gossamer Condor Albatross fame calls ship ultimate ultralight trainer 84 Model Aviation $13000 just envelope may start thinking terms smaller model blimp Bill now building smaller livingroom version RC Electric arrived Camarillo Airport first glimpse magnificent airship early morning cant fly wind dead-calm about 7 am 10 am about can day Houston Astrodome can fly anytime top speed around 9 mph cruse 7 mph mercy elements airship temporarily nicknamed White Dwarf pending contest officially name walked out flying spot few hundred feet wide bounded hangars airplanes tether rope some 50 70 ft attached just case gust miscalcula tion should imperil ship left slack blimp would fly its own After couple shakedown flights Bill Watson graciously consented let have go will admit being absolutely fearless right up time about 40 ft off ground discovered incipient acrophobia person going make its presence felt rig Before liftoff bag pressure about two four hundredths pound per square inch checked auto matic valve let out excess pressure gets too great pilot has access normal seldom used pressure release valve No problem Bill Brian adjust water levels ballast tanks make ship about 1 lb heavier its hover ing weight zero After weighing off its time pedal prop pointing upward climb plane lever approximates plane prop rotation know much vectoring giving takes pedalling take effect ship responds thrust rudder changes what seems about 15-sec delay Still cares stopped pedalling took stock what next ship just hung Fantastic Well lets center rudder go pedal harder go faster pedal backwards slowly stop begin backup blades prop adjustable ground new lower-pitch setting used day says Bill gives better speed both directions What view up may slow its sure sitting front TV set two seat belts felt good though balancing narrow fiberglass semirecumbent seat Rudder hard over moving wellabout 6 mph think could get like Quiet except swish-swish-swish prop turning 330 rpm After few circuits Continued page 170 May1985 85 Bill Watson turning blimp kept tethered though flying free just case flying site between hangars parked aircraft tiniest breeze could present significant hazard Watson f lies overhead Note pyramidal water baiiasttanks helium Tillertube wfllch runs down pilot case need release gas Bill Phyllis Warner pics exceptas noted better half Warner team Phyllis flies blimp overhead Easily visible three transmission chains fiberglass pyramids containing water ballast right hand rudder crank rearvlew mirror shows rudder position bag hanging side holds equilibratorrope weights attached along its length can deployed ease landings novices Total fuselage weight about 60 lb Slow Combat model has terrible engine runs youre sure isnt fuel engine suspect tank Ive got hot tip Bob Nicks Triangle Hobbies makes various size tanks becoming standard Slow Combat also sells Eagle Slow Combat foam cores plans assort ed other Combat goodies Write him 1211 Brookgreen Dr Gary NC 27511 call 919 467-6720 several other manufacturers Ill mention later columns Charlie Johnson 3716 graham St San Diego CA 92109 619 273-6530 Geophysical Driskill-Hunton Continued page 78 fuselage add fin stabilizer parts fin should mounted slot Install bellcrank mounting plates Install hardwood dowels engine mount crosspiece bellcrank mounting plate limit bellcrank travel rear wing pin Cut elevator parts shape join Sand elevator smooth airfoil shape Apply light giass cloth center section elevator CyA Install hinge tubes epoxy using filament tape reinforcing Finish fuselage elevator assem blies fuel-proof system Make effort keep nose light since tail weight will probably have added make model balance properly Install bellcrank 0021 leadouts Lead-outs can fished through wing piece wire Install elevator elevator horn Joggle rear end pushrod extra jog fine adjustment Install engine fuel system Cut hardwood stub spars length slide fuselage Pre-fit wings can get carbon-fiber material slide %-in-wide piece over stub spar extend 3 onto main wing spar Use CyA anchoring carbon-fiber wings fuselage carbonfiber material available coat joining surfaces epoxy assemble wings Balance model center gravity approximately / ahead center main spar can make controls responsive adding weight tail moving CG rear ward small increments Geophysical light responsive flying skills rusty building sport-stunt trainer begin CG well forward slower con trol response Combat trim hands experienced flier like Larry Driskill Geophysical awesome Blimp/Warner Continued page 85 course ready come down Pedalling tends tire novice easily mentioned earlier found really too crazy about heights though flying has never bothered least before case thrill never forgotten As morning progressed wide vane ty experienced novice pilots took blimp spin Gallagher Bill Charlie Brian couple other old hands certainly rig well hand could make go exactly wanted Newcomers like wife Phyllis Bills 1 2-year-old nephew George lady ran kindergarten tcok first flights mastered ship loved minute Peripatetic Raindrop name registered ultralight aircraft flying weight 1 lb probably lightest ultralights world According Brian Allen ship . ludicrously easy train someone four times strong anything else Besides says Brian other Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marine K&B FUELSKAB GLOW PLUGS 7 Blends4 c5oices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMERKAB SUPER POXY PAINT K&B MIXING CUPS 170 ModelAviation ML & CRAFT 16th ANNUAL APRIL 27th & 28th LONG BEACH CONVENTION CENTER 300 E OCEAN BLVD LONG BEACH GENERAL ADMISSION ADULTS $400 UNDER 12 $250 / UNDER 6 FREE HOBBY CONTESTS DEMONSTRATIONS EXHIBITIONS Contest Details Local Hobby Shop through Local Club Contact MACS CONTEST DIRECTOR P0 Box 284 Westminster CA 92684 714 891-9559 MACS IS SELLING SHOW New Model Magic Products Model Magic Epoxy Plus 2 Part 8 Mm Use anywhere two part epoxy used 25% lighter Sandable Carveable Excellent Gap Filling Non Sagging Superior Strength Sands Carves Like Basswood II 6 fI oz$895 Equal over 8 wt regular epoxys See dealer firnt Ehen wriRe cBII Model MagIc PudUCtS kc P0 Don 19784 5tu MN 55119 17151425-1397 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak137 158 AMA Membership Academy Av Research & 0ev137 Ace Radio Control139 Airtronics2 Applied Design142 Astro Flight158 Balsa USA15 Blue Ridge Models146 Bru Line Industries5 Byron Originals86-86 CB Associates137 Ca Ra Products139 Carolina-Taffinder138 Johnnie Casburn Mfg143 Champion Model Products146 Chevron165 Circus Hobbies156 168 Cleveland Model & Supply Co161 Eric Clutton164 Consumers Guide47 Coverite1 Curtis Model Aircraft24 D&D Engineering151 DGA Designs161 Davey Systems Corp20 151 Larry Dodge Aero Inc164 Dodgson Designs152 Dougs Hobby Shop166-167 Du-Bro Products Inc4 FAI Model Supply153 FHS Supply Inc12 Flyline Models160 Fourmost Products136 Fox Mfg22 Fun Fly142 Futaba Corp America25 Gator RC Products138 Gemini Models157 Carl Goldberg Models13 147 Golden Gate Hobbies49 Gorham Model Products14 Great Planes Model Mfg Co162 Historic Aviation21 Hobby Barn134-1 35 Hobby Capitol Distributors159 Hobby Horn78 Hobby Lobby International9 Hobbypoxy146 Hobby World Imports170 Holleys Silent Flight151 Howard B Huebi171 Ikon Northwest Co165 Indy RC Sales Inc154-1 55 Jomar Products24 K&BMfgCo170 K&S Engineering148 K W Enterprises153 Knights Air168 Kraft Systems Inc23 Kustom Kraftsmanship147 L&L Model Products165 Lindsey Micro Products165 Lone Star Models45 Lutmi Enterprises164 MACS Products171 Master Kit162 McDaniel RC Service169 Messers Quality Model Prod171 Micro Mark24 162 Micro Model Engineering160 Micro-X-Products151 Model & Craft Show170 Model Magic Products170 Model Rectifier CorpCovers 2 & 3 Morley Helicopters USA157 Mutchiers Hobbies140-141 Nor-Cal Avionics160 North Products146 Ocean State Aeromodel Eng165 Ohio Superstar22 PK Products158 Peck-Polymers162 Penn Valley Hobby Center160 Peripheral Systems Inc149 Pica Products7 Polks Hobby8-9 Proctor Enterprises5 RC Soaring Digest148 Repla-Tech International146 Robbe Modellsport79 RoushMfg161168 SR Batteries148 S&W Hobby Supply150 Sailplanes World150 Satellite City93 Scratch-A-Plane71 Shamrock Competition Imports133 Sheldons Hobby Shop144-1 45 169 Sig Mfg Co5 ii Simplex Miniature Engines159 Southeastern Air Craft ers153 St Croix Park Falls156 Stan dale Aircraft152 Sterling Models47 Swanson Associates150 TG Mfg164 Tatone Products Co20 Tidewater Eng & Machine Co136 Top Flite Models Inc157 Tower Hobbies163 US Eagle138 VK Model Aircraft139 VL Products78 Videotech146 WE Technical Services6 Williams Brothers159 Wilshire Model Center14 Windsor Propeller Co156 World EnginesCover 4 Zenith Aviation Publications37 Nick Ziroli Models12 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX human-powered craft can flown doors Ihe possibilities model humanpowered blimps Gallagher has ased RC model looked like watermelon TV show Peck-Poly ners has quite inexpensive blimp being told more promotional stunts several countries interested military purposes Aside its eye-catching advantages advertising human-powered might set upto give rides maybe selling Polaroid shot videotape customer afterwards might have human-powered blimp race event next Olympics cant afford big ones though remember got started rubber-powered models Secrets None really Just add weight until model just hovers add just atadto bring down power runs out prop lower gas bag airship will climb naturally thrust continually pushing up nose positive angle attack Good year blimp works way vectored thrust icing cake want go RCContinued page 172 IN sTocK FOR IMMEDIATE SHIPMENT NEW RA 508$19995 New Onadra 36 col$10995 Reg Qoedre 39 $9996 Brisighella $Iywhml$11995 Reg Onadra 36 Power Aosesbly Only$6450 QUADRA REPAIR$1000 pins parts Jin Messer ERcOUPEPlANS $2396 KIT $23996 Jin Mesner TOMAHAWKPLANS $2396 KIT $36996 Jin Meson 9-BALL TRAINERPLANS $1996 KIT $19996 BALSA end BASSWOOD 111 sitesSig pioen lens 19% New ZENOAH 0-23 $13696ZENOAH 0-36 $ 9996 FLOATS 30116 noelonren $1796onnoplete kit $3996 FLOATS 49114 no1 cores $2196contpleoe kit $4796 10 WWI WHEELS 3696 PieW cyiS FLEETS$3696 PLANS SUPER STEARMAN 114 Godfrey$3996 STARDUSTER TOO 1I4Bringhelle 13 J3 CUB Nelit$2996 VOLKSPLANE 113 Chicken Cherlie$2396 COCKPIT KITS Tontahnwk F4U-1 Spitfire ME109$2396 Ernoope Fleet J3 Cob POE P47 C Eagle$2196 Cloak $2496 Zero $2696 Zero exteror$1096 US Onedra FUEL TANKS16 o $69623 n $796 FIBERGLASSARROWSHAFTS6/16o23long0l$1OO0 24-Hour Service. Add 5250 p stage Send flank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS valley view Dr. Boo 43 Allegany NY 14706 PRODUCTS FflA ThP ntcrpmuius MfliWi CE Complete Line Exhaust Systems d Pipes Muffled Tuned Pines Headers Venturi Mufflers Expansion Mufflers * Helicopter PRECISION BALANCE ALLBall Mufflers Specialized Exhaust Heres ho equipment need gwe prop 0iy best Systems balance-balance directions Carefidly crafted top grade Linsurpassad Workinan-ehin fonnaace materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Dlher sizes avadable special order [alers muted $1795 Add$ISOfen HOWARD B HUERL DEFT ODS pentege beadleg le Mis 6% ealee Pun lie C0Da Boo 92 Rt S Mankato MN 56001 May1985 171 FULL SIZE PLANS No 473 No 474 No 475 Tucano$1250 RC Sport Sosie spans 66 uses 60-75 engines Three sheets Pacer 15$500 FF 1983 FAI Class Fl World Champion Towline Glider Geophysical$400 CL Slow Combat model uses geodetic wing construction Two sheets $375 lb 133Stte CL Stunt mmlel McOnnab winnerl976 19801982 PAl Wend Cp$ Ne 281lb lkdn AC Ken Willards immatlon plane 4-channel 1 0-pnwer$125 lb 252Cmubmastho CL Crash jo-oct trainer two sizesl 5-30- 35-40-power .. lb 233See B IL pentsbe AC /4-scala hy Ilaflke tsr 91 power Prototype span 30 ft Two-and-a-half sheets$1175 Ne 362F1S AC Sarpolas 049 dected fan sport ttierfor2-channel Balsa wings tall hise structure$ 275 Na 3161330 Fleet 3bae AC SportScale 35-40 4-channel Wingspan 56 inscale Two sheets $ 625 Ne 314Drake t AC Ken willards flying beat 3-channel 1 5-power Fly front land removable gear$ 375 Ne 328Taller Cab AC Don Sruts Schoolyard-Scala br 049s 2-3 channel Spans 50 in$ 350 Ne 332 Zapbym AC Small 2-channel glider tsr hand-lasoch tow thermaL slope soaring $ 200 Ne 358 Pbceo FF Indoor Easy B Aubber-power contest-winner hy W Van Corder $100 Ne 383ClEats S2 AC Fly lIds sleek Nets winiting Sailplane AMA Mod Std Unlhnited classes$750 Ne 386Laser 200 AC Sport Scale repOca championship Aerohatic Bler Uses 40 power 4-5 channel Two sheets-$1075 Ne 318Sm Sm 81 AC flaflkes latest /4-scale spans iSis weighs 15 0, flIes 90 ar larger Foar sheets doc$2225 Ne 414BleabIc Spenky AC electric-powered fun tiler lorDS motor 3-channel AC scaled epi 939 robber-power lavoille$850 Ne 4226eetsr AC Two-Meter Sailplane has won Nats event 101982 1983 plea other contests- $550 Ne 423dud Cnisec AC Old-Timer takes 60-power 3-channel AC Two-pace wing optman tar easy transport Two sheets$1275 Ne 424Seed lent FF Emlays Enderasce robber-power fboalpiane has optional wheels stlck-and-tissan delight$ 200 Ne 426Clba Clppu AC Fabulous 74-in-span Sport Scale Ilying boat leer 1 B-size engines 4-channel Three sheets no don$2000 Ne 428Over E-Z CL Old-Timer Stunt biplane has praBle fuselage uses 25 engine$ 400 Ne438keeaMeRCZippyllttlesportsterlOiI0-lsPoweraOd3-channelAC -$ 400 Ne 431Lbheed P-35 AC Fao-scale twio-1 5-f lmr 4-channels Two sheets$1 300 Ne 432Fkeeaia CL Updated Thanderbird-style Stunter Ito- 35-40 engines -$ 575 lIe 433Wafba Up AC Electric-powered gilder tsr 2-3 channels 035 motor spans 52 in$ 450 Ne 435ThIn N AC Aerohatic biplane 40 engines 4-chasnels Great sport Ilyl$ 650 Ne 437KIqIsluc CL Profile Cantor plane spans 40/z in. noes 35 engIne$ 600 Ne 435Ciuleer FF Embryo Endurance robber-power tan slap has big-model characterlstlcs$ 200 Ne 433Deapenaic AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 Ne 440 Cavalec AC Old-Timer-like new design has hnge wing slow easy Bights 35 power 3 channels Two sheets $1 725 lb U1E WIt FF Hot small lightweight cmnpotitlso ship tsr 15 power designer Harry Murphy $ 475 Ne 442 Lang Ouch AC Big canard sport fter /nA-09 power 2 channels Uses loam board parts $ 650 Ne 444 Fbeldt AC pusher canard spartlpattem sam 40 pusher engine 4-channel Has swept-forward loam wings $ 650 Ne 445 Nesaitl Ceegac CL Scala model popular homehuilt won Nuts Uses 21 engine spans 41 in $ 925 Ne 445 La Crab AC Electric-powered sport flIer 05 motors 3-channels Two veraisos parasol cabin $ 550 Ne 447 YeA faa Amutol AC Old-Timer /sA Texaco model 049 glow 2-channels 50 Ne 443 SeAm CL SportlSlont plane 40-size 4-stroke engine builds last easy . $ 600 Ne 451 B llpbee 5ei ftC Aedesigo sleek 1937 FF biplane tsr 3-4 channels 29-40 power Two sheets $1175 lb 452 Bee Sm Z AC Osarter-scale spans 71 ses 90 power Foor sheets $1 600 $ 550 lb 453 Smeeflde meSa CL Prsfilo rendition 01 Bob Palmers supor-Stunter 01 early Fitties tsr 35 power $ 2011 lb 454Sweet P-30 FF Neat stich-and-tissue Ouldoor Aubber P-3D-class model isa coolest-winner Ne 458HfTeeh 2851 AC Dacted-tan lotaristic-leoking canard 25-size engines Built-up construction Three sheets$1175 Ne 457Speoha AC Electric-power 05-size motor uses 3 different wings sport soaring aerobatics$ 700 lb 458Beenllena CL Profile Canter 1 5-power events Two sheets$ 575 lb 453Sky renault FF Aebber-power old-timer designed Joc Ott 1932$ 300 Na 450440 AC Shoulder-wing spud Bier 4-cycle 40-size engine 4 channels$ 650 lb 461Tifabo Sanoateneec CL Famous untlapped Stunter late Farties Uses 35 engine$ 650 Ne 462Paula PE FF Jumbo Aubber Scale 01 WW taken observation plane$ 400 $ 475 lb 463Pletylmehletbea Vt AC mA Pylon racer uses lots ito ply built-up struclore tar strength lightness$ 325 lb 454Suedaecem CL bA sport flier all-sheet-balsa can use Tee Dee 049 lb 455Wee Mast AC Fuo-fly sportster 40-size engines spans 52 Lightweight strectare$ 700 lb 456CeuepeNfer CLStanterfor 60 power has 850 sq wing urea$ 575 Na 467Aloe Spent FF Aubber Scale desigo won 63 Nuts tar designer Don Srall Wingspan 2610$ 250 Ne 468Smeethe CL Stunter 29135 power Design bused hybrid SmoothielNebler$ 675 lb 463Sm Ktohet AC Sport Scale rendering Polish hmneboitl pusher Spans 75 uses 40-size 4-cycle engion Four sheets$2075 lb 470Slreher AC Mld-wlng sportster uses 40145 four-stroke engine spans 50/o tail-dragger$ 650 $ 575 lb 471Negas Aetaa CL Profile Stunt trainer spans 54 uses 35140 engine Flapped wing$ 550 lb 472Peracraft AC Craft has flesible paroled wing uses 3 AC channels 60 engine. 0 us n cJ 0t C 60 Zus 030 c us - 0 V us c0- 0 usus CV mm V o-t us 0 us V 0us 0 0us 0us c Ous ea 03 uC 03 STATE II Circle numbers plans wish order 193 326 422 432 441 451 459 466 473 239 332 423 433 442 452 460 467 474 262 358 424 435 444 453 461 468 475 299 383 426 437 445 454 462 469 302 386 429 438 446 456 463 470 Plan pnlce lacledes first class pinup tt US delvery wMch Alt MaE over 300 laNes l stun gutsMs fits US. please add $250 Air Mail $1 25 surface mail 310 398 430 439 447 457 464 471 314 414 431 440 449 458 465 472 0 Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Or, 1165100 VA 22090 Please allow 3 6 weeks delivery Please print carefullyEnclosed $__________________________________ NAME STREET CITY ZIP Happy flying stay out cactus Editor March 1981 Model viadon contained two excellent articles RC model airships Slow Year Blimp Lou Bruhn Summer Breeze Balloon Luther Hux Elec Floatplanes/PoIing Continued page 92 pieces area behind step should go first large piece area front step Allow generous overlap between two Cover top last Accept inevitable wrinides float curved hard get away few cant seen air anyway water rudder handy steering especially after landing have - get plane back shore breeze have taxi crosswind downwind can almost impossible water rudder can have enough power get plane step air rudder effective Personal ly have bad habit flying long can have enough power idle back displacement mode displace ment mode air rudder doesnt much short power blasts will help mentioned dont land enough power left use 3 sq water rudder 590 sq plane can scale other sizes using ratio wing rudder area water rudder attached directly air rudder simplicity Look closely photo can see rudder made music wire bent rectangular U plastic sheet surface taped together clear package wrap ping tape available stationety stores Part music wire left vertical stub matching stub attached rudder wheel collar joins wheel collar wonderful allows both side-to-side vertical adjustment rudder rudder should adjusted vertically top just out water plane sitting water no power Under power plane rocks back floats rudder well underwaterbut step rudder completely out water no drag Clever did water rudder years because drag severe enough prevent taking off finally simple system popped mind Now have benefits problems Another potential problem effect water rudder drag rudder hinges can severe provide tube rudder stub go through attached fuselage relieve drag pressure Enough now Next month will get final setup tips techniques - water flying Get plane ready continued 172 ModelAviation
Edition: Model Aviation - 1985/05
Page Numbers: 80, 81, 82, 83, 84, 85, 170, 171, 172
NO OCR TEXT NO OCR TEXT balloon envelope putting gon dola made material Styrofoam egg carton directly balloon vinyl electricians tape motor stick balsa business end power supply balsa stick aluminum tube bearing prop kids made stack balsa laminations fanned out glued sanded pinch wed use heavier plastic prop fins cut construction paper stuck Magic Mending Tape About 2-ft loop 1/16-in rubber would give flights lasting 2 min aroom 12-ft ceiling blimps bounce off walls few years later Bill Watson making Radio Control blimps some sophistication sight behold Pasadena IM Show dozen-footlong Golden Football used 48 cubic feet helium welcome relief flam mable hydrogen provide lift Helium lifts little less hydrogen whole lot safer Too bad Hinden burg designed bags helium sur rounding hydrogen cores wasnt able get last resort used hydrogren way almost way disastrous consequences know well Helium lifts little less 1 oz per cu ft quite bit can hot air fuselage Golden Football suspended about foot beneath shining eight-gore DuPont Kapton Key lar film bag electric motor Astro 02 rigged rudder-aided directional control Longitudinal control stability came fixed stabilizer rear movable like diving planes submarine front carried 5 oz water ballast motor could con trolled give reverse flight Try winged RC airplane nice feature design release mechan ism dropping things like small hang gliders altitude Bills rcent RC blimp drops things too much smaller practical small gyms carries 17 cu ft helium its aluminized Mylar bag oovering Saran-coated seals easily heat Bill says doesnt know can get though high-tech mate rials came him via team built famous Gossamer Albatross Gossa mer Condor Bill apart both projects knows about super-light oon struction almost anyone know entire aluminized blimp 6 ft long has 3 oz material gas bag two-gore designsimple make having lots wrinkles critical fly 3 mph three-channel radio operates motor speed power motor like type used servos thrust vectoring up down rudder rudder tied gimballed motor mount applying rudder moves motor thrust sideways give turns proverbial dime up down control provides range thrust straight up straight down maneuverable 82 Model Aviation van delivered cylinder helium top off airship hazards ot buy ing pig poke tank proved empty Water ballast added front tank ship will weigh about pound individual pilot before being flown Watsons latest RC blimp Indoor flying equipped drop PF hang glider up nearthe ceiling Electric motor power swivels directions altitude turn control miunareds kids have made model blimps like authors classes over last 15 yearsmainly due Bill Watsons inspiration assistance rubber-powered model guaranteed fly crash just means bouncing off wall Styrofoam gondola often pressed illto service retrieve Peanut Scale microfilm-covered ships overhead lights Paul Revere Junior High School Indoor meets Long interested human power Bill helping build Paul Mac Cready Gossamers also hang gliders bicycles speed record attempts Ontario Raceway shells racing bicycles inventiveness eventually brought him contact top people human-powered vehicles also got him building unusual stuff movies Radio Control ptero dactyl movie War Games contact changed life meeting popular comedian Gallagher Gallagher run-of-the-mill comic highly-imaginative creative phil osopher love humanity na ture drives him some pretty zany demonstrations idea non-pollut ing little cloud could pedalled about process provide vehicle getting people look skyward think about what doing air born Bill given carte blanche make though copythe golden age blimp having peaked some 75 years earlier Drawing model experience Bill did basic design workkicking around ideas Blame Rawdon Bart Hibbs provided invaluable assistance stress analysis configuration com puter-designing prop ala Larrabee know about computerdesigned props An order placed Raven firm makes types hot-air gas-filled envelopes tear drop-shaped envelope ripstop nylon urethane coating made 16 gores gores less wrinldes fewer wrinides less drag finished bag 47 ft long weighs neighborhood 60 lb Brian Allen pilot power plant great Gossamer ffights incidentally winner prize money pilot history doing Charlie Sink graduates Aeroplanes Flying Machines class called work Bill fuselage Built 2024 T-3 aluminum alloy tubing 7075-0 gussets fuselage tremen dously strong gussets pressureformed dies Bill made poprivets fasten tubes Warren-truss configuration prop has spruce spar main blades made Styrofoam prop driven pedal crank standard bicycle chain connec ted two plastic-cable chains sort used Gossamers lever pilots left controls vectoring propeller thrust up downnot much RC blimp enough make difference between climb descent small crank pilots right controls rudder position monitored small rear-view mirror rudder itself features Styro foam rib cores spruce cap strips May1985 83 F- NW Back 19605 Bill Watson introduced kids lighter-than-air flying models Aero planes Plying Machines class summer science workshops California Museum Science industry Los Angeles Now hes made person-powered Bill Watsons rubber-powered blimps early 1970s Bag made two gores drycleaners bag Flightsof several mlnuteswere possible undera ratheriowceiling Bill Watson rides airship walked its flying site Camarillo Airport Hes riding because ship needs bailast novice can fly after brief Instruction period double-covered thin Mylar film Total weights compensate carrying different fuselage weight 60 lb loads wide variation pilot Ballast tanks fore aft fiber- weights An equilibrator consisting glass can emptied water about several lead weights rope normally minute pilot Easily-attached lead carried bag side fuselage Until new pilot has few flights under belt hung down under airship too-rapid descent becomes docile touch down lengths rope contacting ground progressively light ens craft much-appreciated feature pilots free-flying gas balloons retrievable ballast model airplane motor prop adorn front fuselage belt-drive Astro 40 18-6 prop can turned right left pilot theory used help sharp corners buck headwinds practice has little effect may removed future Instrumentation includes audible va riometer buzz pitches higher go up airspeed indicator bag pressure indicator FM radio ground communication Actually yelling between craft ground makes radio unnecessary airship makes no noise compete yell attachment cords between fuse lage envelope Kevlar surrounded Dacron ultraviolet protection abrasion resistance Reinforced round patches glued gas bag distribute load reality large safety factor having minimum number attachment cords seat belt has backup should come un buckled Inflating bag takes lot gas 16ft diameter bag requires over 20 tanks helium about 6000 cu ft price helium does bother Watsons RC electric-powered blimp named Golden Footballas seen rear Motor attached rudder better direc tional control Rear surfaces fixed front planes controllable Photo Don Monroe Right Bill Watson L adjusts ballast forGalla gher about take flight Gallagher successful TV comedian philosopher wants people take notice Little White Cloud stop polluting air Brian Allen Gossamer Condor Albatross fame calls ship ultimate ultralight trainer 84 Model Aviation $13000 just envelope may start thinking terms smaller model blimp Bill now building smaller livingroom version RC Electric arrived Camarillo Airport first glimpse magnificent airship early morning cant fly wind dead-calm about 7 am 10 am about can day Houston Astrodome can fly anytime top speed around 9 mph cruse 7 mph mercy elements airship temporarily nicknamed White Dwarf pending contest officially name walked out flying spot few hundred feet wide bounded hangars airplanes tether rope some 50 70 ft attached just case gust miscalcula tion should imperil ship left slack blimp would fly its own After couple shakedown flights Bill Watson graciously consented let have go will admit being absolutely fearless right up time about 40 ft off ground discovered incipient acrophobia person going make its presence felt rig Before liftoff bag pressure about two four hundredths pound per square inch checked auto matic valve let out excess pressure gets too great pilot has access normal seldom used pressure release valve No problem Bill Brian adjust water levels ballast tanks make ship about 1 lb heavier its hover ing weight zero After weighing off its time pedal prop pointing upward climb plane lever approximates plane prop rotation know much vectoring giving takes pedalling take effect ship responds thrust rudder changes what seems about 15-sec delay Still cares stopped pedalling took stock what next ship just hung Fantastic Well lets center rudder go pedal harder go faster pedal backwards slowly stop begin backup blades prop adjustable ground new lower-pitch setting used day says Bill gives better speed both directions What view up may slow its sure sitting front TV set two seat belts felt good though balancing narrow fiberglass semirecumbent seat Rudder hard over moving wellabout 6 mph think could get like Quiet except swish-swish-swish prop turning 330 rpm After few circuits Continued page 170 May1985 85 Bill Watson turning blimp kept tethered though flying free just case flying site between hangars parked aircraft tiniest breeze could present significant hazard Watson f lies overhead Note pyramidal water baiiasttanks helium Tillertube wfllch runs down pilot case need release gas Bill Phyllis Warner pics exceptas noted better half Warner team Phyllis flies blimp overhead Easily visible three transmission chains fiberglass pyramids containing water ballast right hand rudder crank rearvlew mirror shows rudder position bag hanging side holds equilibratorrope weights attached along its length can deployed ease landings novices Total fuselage weight about 60 lb Slow Combat model has terrible engine runs youre sure isnt fuel engine suspect tank Ive got hot tip Bob Nicks Triangle Hobbies makes various size tanks becoming standard Slow Combat also sells Eagle Slow Combat foam cores plans assort ed other Combat goodies Write him 1211 Brookgreen Dr Gary NC 27511 call 919 467-6720 several other manufacturers Ill mention later columns Charlie Johnson 3716 graham St San Diego CA 92109 619 273-6530 Geophysical Driskill-Hunton Continued page 78 fuselage add fin stabilizer parts fin should mounted slot Install bellcrank mounting plates Install hardwood dowels engine mount crosspiece bellcrank mounting plate limit bellcrank travel rear wing pin Cut elevator parts shape join Sand elevator smooth airfoil shape Apply light giass cloth center section elevator CyA Install hinge tubes epoxy using filament tape reinforcing Finish fuselage elevator assem blies fuel-proof system Make effort keep nose light since tail weight will probably have added make model balance properly Install bellcrank 0021 leadouts Lead-outs can fished through wing piece wire Install elevator elevator horn Joggle rear end pushrod extra jog fine adjustment Install engine fuel system Cut hardwood stub spars length slide fuselage Pre-fit wings can get carbon-fiber material slide %-in-wide piece over stub spar extend 3 onto main wing spar Use CyA anchoring carbon-fiber wings fuselage carbonfiber material available coat joining surfaces epoxy assemble wings Balance model center gravity approximately / ahead center main spar can make controls responsive adding weight tail moving CG rear ward small increments Geophysical light responsive flying skills rusty building sport-stunt trainer begin CG well forward slower con trol response Combat trim hands experienced flier like Larry Driskill Geophysical awesome Blimp/Warner Continued page 85 course ready come down Pedalling tends tire novice easily mentioned earlier found really too crazy about heights though flying has never bothered least before case thrill never forgotten As morning progressed wide vane ty experienced novice pilots took blimp spin Gallagher Bill Charlie Brian couple other old hands certainly rig well hand could make go exactly wanted Newcomers like wife Phyllis Bills 1 2-year-old nephew George lady ran kindergarten tcok first flights mastered ship loved minute Peripatetic Raindrop name registered ultralight aircraft flying weight 1 lb probably lightest ultralights world According Brian Allen ship . ludicrously easy train someone four times strong anything else Besides says Brian other Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marine K&B FUELSKAB GLOW PLUGS 7 Blends4 c5oices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMERKAB SUPER POXY PAINT K&B MIXING CUPS 170 ModelAviation ML & CRAFT 16th ANNUAL APRIL 27th & 28th LONG BEACH CONVENTION CENTER 300 E OCEAN BLVD LONG BEACH GENERAL ADMISSION ADULTS $400 UNDER 12 $250 / UNDER 6 FREE HOBBY CONTESTS DEMONSTRATIONS EXHIBITIONS Contest Details Local Hobby Shop through Local Club Contact MACS CONTEST DIRECTOR P0 Box 284 Westminster CA 92684 714 891-9559 MACS IS SELLING SHOW New Model Magic Products Model Magic Epoxy Plus 2 Part 8 Mm Use anywhere two part epoxy used 25% lighter Sandable Carveable Excellent Gap Filling Non Sagging Superior Strength Sands Carves Like Basswood II 6 fI oz$895 Equal over 8 wt regular epoxys See dealer firnt Ehen wriRe cBII Model MagIc PudUCtS kc P0 Don 19784 5tu MN 55119 17151425-1397 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak137 158 AMA Membership Academy Av Research & 0ev137 Ace Radio Control139 Airtronics2 Applied Design142 Astro Flight158 Balsa USA15 Blue Ridge Models146 Bru Line Industries5 Byron Originals86-86 CB Associates137 Ca Ra Products139 Carolina-Taffinder138 Johnnie Casburn Mfg143 Champion Model Products146 Chevron165 Circus Hobbies156 168 Cleveland Model & Supply Co161 Eric Clutton164 Consumers Guide47 Coverite1 Curtis Model Aircraft24 D&D Engineering151 DGA Designs161 Davey Systems Corp20 151 Larry Dodge Aero Inc164 Dodgson Designs152 Dougs Hobby Shop166-167 Du-Bro Products Inc4 FAI Model Supply153 FHS Supply Inc12 Flyline Models160 Fourmost Products136 Fox Mfg22 Fun Fly142 Futaba Corp America25 Gator RC Products138 Gemini Models157 Carl Goldberg Models13 147 Golden Gate Hobbies49 Gorham Model Products14 Great Planes Model Mfg Co162 Historic Aviation21 Hobby Barn134-1 35 Hobby Capitol Distributors159 Hobby Horn78 Hobby Lobby International9 Hobbypoxy146 Hobby World Imports170 Holleys Silent Flight151 Howard B Huebi171 Ikon Northwest Co165 Indy RC Sales Inc154-1 55 Jomar Products24 K&BMfgCo170 K&S Engineering148 K W Enterprises153 Knights Air168 Kraft Systems Inc23 Kustom Kraftsmanship147 L&L Model Products165 Lindsey Micro Products165 Lone Star Models45 Lutmi Enterprises164 MACS Products171 Master Kit162 McDaniel RC Service169 Messers Quality Model Prod171 Micro Mark24 162 Micro Model Engineering160 Micro-X-Products151 Model & Craft Show170 Model Magic Products170 Model Rectifier CorpCovers 2 & 3 Morley Helicopters USA157 Mutchiers Hobbies140-141 Nor-Cal Avionics160 North Products146 Ocean State Aeromodel Eng165 Ohio Superstar22 PK Products158 Peck-Polymers162 Penn Valley Hobby Center160 Peripheral Systems Inc149 Pica Products7 Polks Hobby8-9 Proctor Enterprises5 RC Soaring Digest148 Repla-Tech International146 Robbe Modellsport79 RoushMfg161168 SR Batteries148 S&W Hobby Supply150 Sailplanes World150 Satellite City93 Scratch-A-Plane71 Shamrock Competition Imports133 Sheldons Hobby Shop144-1 45 169 Sig Mfg Co5 ii Simplex Miniature Engines159 Southeastern Air Craft ers153 St Croix Park Falls156 Stan dale Aircraft152 Sterling Models47 Swanson Associates150 TG Mfg164 Tatone Products Co20 Tidewater Eng & Machine Co136 Top Flite Models Inc157 Tower Hobbies163 US Eagle138 VK Model Aircraft139 VL Products78 Videotech146 WE Technical Services6 Williams Brothers159 Wilshire Model Center14 Windsor Propeller Co156 World EnginesCover 4 Zenith Aviation Publications37 Nick Ziroli Models12 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX human-powered craft can flown doors Ihe possibilities model humanpowered blimps Gallagher has ased RC model looked like watermelon TV show Peck-Poly ners has quite inexpensive blimp being told more promotional stunts several countries interested military purposes Aside its eye-catching advantages advertising human-powered might set upto give rides maybe selling Polaroid shot videotape customer afterwards might have human-powered blimp race event next Olympics cant afford big ones though remember got started rubber-powered models Secrets None really Just add weight until model just hovers add just atadto bring down power runs out prop lower gas bag airship will climb naturally thrust continually pushing up nose positive angle attack Good year blimp works way vectored thrust icing cake want go RCContinued page 172 IN sTocK FOR IMMEDIATE SHIPMENT NEW RA 508$19995 New Onadra 36 col$10995 Reg Qoedre 39 $9996 Brisighella $Iywhml$11995 Reg Onadra 36 Power Aosesbly Only$6450 QUADRA REPAIR$1000 pins parts Jin Messer ERcOUPEPlANS $2396 KIT $23996 Jin Mesner TOMAHAWKPLANS $2396 KIT $36996 Jin Meson 9-BALL TRAINERPLANS $1996 KIT $19996 BALSA end BASSWOOD 111 sitesSig pioen lens 19% New ZENOAH 0-23 $13696ZENOAH 0-36 $ 9996 FLOATS 30116 noelonren $1796onnoplete kit $3996 FLOATS 49114 no1 cores $2196contpleoe kit $4796 10 WWI WHEELS 3696 PieW cyiS FLEETS$3696 PLANS SUPER STEARMAN 114 Godfrey$3996 STARDUSTER TOO 1I4Bringhelle 13 J3 CUB Nelit$2996 VOLKSPLANE 113 Chicken Cherlie$2396 COCKPIT KITS Tontahnwk F4U-1 Spitfire ME109$2396 Ernoope Fleet J3 Cob POE P47 C Eagle$2196 Cloak $2496 Zero $2696 Zero exteror$1096 US Onedra FUEL TANKS16 o $69623 n $796 FIBERGLASSARROWSHAFTS6/16o23long0l$1OO0 24-Hour Service. Add 5250 p stage Send flank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS valley view Dr. Boo 43 Allegany NY 14706 PRODUCTS FflA ThP ntcrpmuius MfliWi CE Complete Line Exhaust Systems d Pipes Muffled Tuned Pines Headers Venturi Mufflers Expansion Mufflers * Helicopter PRECISION BALANCE ALLBall Mufflers Specialized Exhaust Heres ho equipment need gwe prop 0iy best Systems balance-balance directions Carefidly crafted top grade Linsurpassad Workinan-ehin fonnaace materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Dlher sizes avadable special order [alers muted $1795 Add$ISOfen HOWARD B HUERL DEFT ODS pentege beadleg le Mis 6% ealee Pun lie C0Da Boo 92 Rt S Mankato MN 56001 May1985 171 FULL SIZE PLANS No 473 No 474 No 475 Tucano$1250 RC Sport Sosie spans 66 uses 60-75 engines Three sheets Pacer 15$500 FF 1983 FAI Class Fl World Champion Towline Glider Geophysical$400 CL Slow Combat model uses geodetic wing construction Two sheets $375 lb 133Stte CL Stunt mmlel McOnnab winnerl976 19801982 PAl Wend Cp$ Ne 281lb lkdn AC Ken Willards immatlon plane 4-channel 1 0-pnwer$125 lb 252Cmubmastho CL Crash jo-oct trainer two sizesl 5-30- 35-40-power .. lb 233See B IL pentsbe AC /4-scala hy Ilaflke tsr 91 power Prototype span 30 ft Two-and-a-half sheets$1175 Ne 362F1S AC Sarpolas 049 dected fan sport ttierfor2-channel Balsa wings tall hise structure$ 275 Na 3161330 Fleet 3bae AC SportScale 35-40 4-channel Wingspan 56 inscale Two sheets $ 625 Ne 314Drake t AC Ken willards flying beat 3-channel 1 5-power Fly front land removable gear$ 375 Ne 328Taller Cab AC Don Sruts Schoolyard-Scala br 049s 2-3 channel Spans 50 in$ 350 Ne 332 Zapbym AC Small 2-channel glider tsr hand-lasoch tow thermaL slope soaring $ 200 Ne 358 Pbceo FF Indoor Easy B Aubber-power contest-winner hy W Van Corder $100 Ne 383ClEats S2 AC Fly lIds sleek Nets winiting Sailplane AMA Mod Std Unlhnited classes$750 Ne 386Laser 200 AC Sport Scale repOca championship Aerohatic Bler Uses 40 power 4-5 channel Two sheets-$1075 Ne 318Sm Sm 81 AC flaflkes latest /4-scale spans iSis weighs 15 0, flIes 90 ar larger Foar sheets doc$2225 Ne 414BleabIc Spenky AC electric-powered fun tiler lorDS motor 3-channel AC scaled epi 939 robber-power lavoille$850 Ne 4226eetsr AC Two-Meter Sailplane has won Nats event 101982 1983 plea other contests- $550 Ne 423dud Cnisec AC Old-Timer takes 60-power 3-channel AC Two-pace wing optman tar easy transport Two sheets$1275 Ne 424Seed lent FF Emlays Enderasce robber-power fboalpiane has optional wheels stlck-and-tissan delight$ 200 Ne 426Clba Clppu AC Fabulous 74-in-span Sport Scale Ilying boat leer 1 B-size engines 4-channel Three sheets no don$2000 Ne 428Over E-Z CL Old-Timer Stunt biplane has praBle fuselage uses 25 engine$ 400 Ne438keeaMeRCZippyllttlesportsterlOiI0-lsPoweraOd3-channelAC -$ 400 Ne 431Lbheed P-35 AC Fao-scale twio-1 5-f lmr 4-channels Two sheets$1 300 Ne 432Fkeeaia CL Updated Thanderbird-style Stunter Ito- 35-40 engines -$ 575 lIe 433Wafba Up AC Electric-powered gilder tsr 2-3 channels 035 motor spans 52 in$ 450 Ne 435ThIn N AC Aerohatic biplane 40 engines 4-chasnels Great sport Ilyl$ 650 Ne 437KIqIsluc CL Profile Cantor plane spans 40/z in. noes 35 engIne$ 600 Ne 435Ciuleer FF Embryo Endurance robber-power tan slap has big-model characterlstlcs$ 200 Ne 433Deapenaic AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 Ne 440 Cavalec AC Old-Timer-like new design has hnge wing slow easy Bights 35 power 3 channels Two sheets $1 725 lb U1E WIt FF Hot small lightweight cmnpotitlso ship tsr 15 power designer Harry Murphy $ 475 Ne 442 Lang Ouch AC Big canard sport fter /nA-09 power 2 channels Uses loam board parts $ 650 Ne 444 Fbeldt AC pusher canard spartlpattem sam 40 pusher engine 4-channel Has swept-forward loam wings $ 650 Ne 445 Nesaitl Ceegac CL Scala model popular homehuilt won Nuts Uses 21 engine spans 41 in $ 925 Ne 445 La Crab AC Electric-powered sport flIer 05 motors 3-channels Two veraisos parasol cabin $ 550 Ne 447 YeA faa Amutol AC Old-Timer /sA Texaco model 049 glow 2-channels 50 Ne 443 SeAm CL SportlSlont plane 40-size 4-stroke engine builds last easy . $ 600 Ne 451 B llpbee 5ei ftC Aedesigo sleek 1937 FF biplane tsr 3-4 channels 29-40 power Two sheets $1175 lb 452 Bee Sm Z AC Osarter-scale spans 71 ses 90 power Foor sheets $1 600 $ 550 lb 453 Smeeflde meSa CL Prsfilo rendition 01 Bob Palmers supor-Stunter 01 early Fitties tsr 35 power $ 2011 lb 454Sweet P-30 FF Neat stich-and-tissue Ouldoor Aubber P-3D-class model isa coolest-winner Ne 458HfTeeh 2851 AC Dacted-tan lotaristic-leoking canard 25-size engines Built-up construction Three sheets$1175 Ne 457Speoha AC Electric-power 05-size motor uses 3 different wings sport soaring aerobatics$ 700 lb 458Beenllena CL Profile Canter 1 5-power events Two sheets$ 575 lb 453Sky renault FF Aebber-power old-timer designed Joc Ott 1932$ 300 Na 450440 AC Shoulder-wing spud Bier 4-cycle 40-size engine 4 channels$ 650 lb 461Tifabo Sanoateneec CL Famous untlapped Stunter late Farties Uses 35 engine$ 650 Ne 462Paula PE FF Jumbo Aubber Scale 01 WW taken observation plane$ 400 $ 475 lb 463Pletylmehletbea Vt AC mA Pylon racer uses lots ito ply built-up struclore tar strength lightness$ 325 lb 454Suedaecem CL bA sport flier all-sheet-balsa can use Tee Dee 049 lb 455Wee Mast AC Fuo-fly sportster 40-size engines spans 52 Lightweight strectare$ 700 lb 456CeuepeNfer CLStanterfor 60 power has 850 sq wing urea$ 575 Na 467Aloe Spent FF Aubber Scale desigo won 63 Nuts tar designer Don Srall Wingspan 2610$ 250 Ne 468Smeethe CL Stunter 29135 power Design bused hybrid SmoothielNebler$ 675 lb 463Sm Ktohet AC Sport Scale rendering Polish hmneboitl pusher Spans 75 uses 40-size 4-cycle engion Four sheets$2075 lb 470Slreher AC Mld-wlng sportster uses 40145 four-stroke engine spans 50/o tail-dragger$ 650 $ 575 lb 471Negas Aetaa CL Profile Stunt trainer spans 54 uses 35140 engine Flapped wing$ 550 lb 472Peracraft AC Craft has flesible paroled wing uses 3 AC channels 60 engine. 0 us n cJ 0t C 60 Zus 030 c us - 0 V us c0- 0 usus CV mm V o-t us 0 us V 0us 0 0us 0us c Ous ea 03 uC 03 STATE II Circle numbers plans wish order 193 326 422 432 441 451 459 466 473 239 332 423 433 442 452 460 467 474 262 358 424 435 444 453 461 468 475 299 383 426 437 445 454 462 469 302 386 429 438 446 456 463 470 Plan pnlce lacledes first class pinup tt US delvery wMch Alt MaE over 300 laNes l stun gutsMs fits US. please add $250 Air Mail $1 25 surface mail 310 398 430 439 447 457 464 471 314 414 431 440 449 458 465 472 0 Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Or, 1165100 VA 22090 Please allow 3 6 weeks delivery Please print carefullyEnclosed $__________________________________ NAME STREET CITY ZIP Happy flying stay out cactus Editor March 1981 Model viadon contained two excellent articles RC model airships Slow Year Blimp Lou Bruhn Summer Breeze Balloon Luther Hux Elec Floatplanes/PoIing Continued page 92 pieces area behind step should go first large piece area front step Allow generous overlap between two Cover top last Accept inevitable wrinides float curved hard get away few cant seen air anyway water rudder handy steering especially after landing have - get plane back shore breeze have taxi crosswind downwind can almost impossible water rudder can have enough power get plane step air rudder effective Personal ly have bad habit flying long can have enough power idle back displacement mode displace ment mode air rudder doesnt much short power blasts will help mentioned dont land enough power left use 3 sq water rudder 590 sq plane can scale other sizes using ratio wing rudder area water rudder attached directly air rudder simplicity Look closely photo can see rudder made music wire bent rectangular U plastic sheet surface taped together clear package wrap ping tape available stationety stores Part music wire left vertical stub matching stub attached rudder wheel collar joins wheel collar wonderful allows both side-to-side vertical adjustment rudder rudder should adjusted vertically top just out water plane sitting water no power Under power plane rocks back floats rudder well underwaterbut step rudder completely out water no drag Clever did water rudder years because drag severe enough prevent taking off finally simple system popped mind Now have benefits problems Another potential problem effect water rudder drag rudder hinges can severe provide tube rudder stub go through attached fuselage relieve drag pressure Enough now Next month will get final setup tips techniques - water flying Get plane ready continued 172 ModelAviation
Edition: Model Aviation - 1985/05
Page Numbers: 80, 81, 82, 83, 84, 85, 170, 171, 172
NO OCR TEXT NO OCR TEXT balloon envelope putting gon dola made material Styrofoam egg carton directly balloon vinyl electricians tape motor stick balsa business end power supply balsa stick aluminum tube bearing prop kids made stack balsa laminations fanned out glued sanded pinch wed use heavier plastic prop fins cut construction paper stuck Magic Mending Tape About 2-ft loop 1/16-in rubber would give flights lasting 2 min aroom 12-ft ceiling blimps bounce off walls few years later Bill Watson making Radio Control blimps some sophistication sight behold Pasadena IM Show dozen-footlong Golden Football used 48 cubic feet helium welcome relief flam mable hydrogen provide lift Helium lifts little less hydrogen whole lot safer Too bad Hinden burg designed bags helium sur rounding hydrogen cores wasnt able get last resort used hydrogren way almost way disastrous consequences know well Helium lifts little less 1 oz per cu ft quite bit can hot air fuselage Golden Football suspended about foot beneath shining eight-gore DuPont Kapton Key lar film bag electric motor Astro 02 rigged rudder-aided directional control Longitudinal control stability came fixed stabilizer rear movable like diving planes submarine front carried 5 oz water ballast motor could con trolled give reverse flight Try winged RC airplane nice feature design release mechan ism dropping things like small hang gliders altitude Bills rcent RC blimp drops things too much smaller practical small gyms carries 17 cu ft helium its aluminized Mylar bag oovering Saran-coated seals easily heat Bill says doesnt know can get though high-tech mate rials came him via team built famous Gossamer Albatross Gossa mer Condor Bill apart both projects knows about super-light oon struction almost anyone know entire aluminized blimp 6 ft long has 3 oz material gas bag two-gore designsimple make having lots wrinkles critical fly 3 mph three-channel radio operates motor speed power motor like type used servos thrust vectoring up down rudder rudder tied gimballed motor mount applying rudder moves motor thrust sideways give turns proverbial dime up down control provides range thrust straight up straight down maneuverable 82 Model Aviation van delivered cylinder helium top off airship hazards ot buy ing pig poke tank proved empty Water ballast added front tank ship will weigh about pound individual pilot before being flown Watsons latest RC blimp Indoor flying equipped drop PF hang glider up nearthe ceiling Electric motor power swivels directions altitude turn control miunareds kids have made model blimps like authors classes over last 15 yearsmainly due Bill Watsons inspiration assistance rubber-powered model guaranteed fly crash just means bouncing off wall Styrofoam gondola often pressed illto service retrieve Peanut Scale microfilm-covered ships overhead lights Paul Revere Junior High School Indoor meets Long interested human power Bill helping build Paul Mac Cready Gossamers also hang gliders bicycles speed record attempts Ontario Raceway shells racing bicycles inventiveness eventually brought him contact top people human-powered vehicles also got him building unusual stuff movies Radio Control ptero dactyl movie War Games contact changed life meeting popular comedian Gallagher Gallagher run-of-the-mill comic highly-imaginative creative phil osopher love humanity na ture drives him some pretty zany demonstrations idea non-pollut ing little cloud could pedalled about process provide vehicle getting people look skyward think about what doing air born Bill given carte blanche make though copythe golden age blimp having peaked some 75 years earlier Drawing model experience Bill did basic design workkicking around ideas Blame Rawdon Bart Hibbs provided invaluable assistance stress analysis configuration com puter-designing prop ala Larrabee know about computerdesigned props An order placed Raven firm makes types hot-air gas-filled envelopes tear drop-shaped envelope ripstop nylon urethane coating made 16 gores gores less wrinldes fewer wrinides less drag finished bag 47 ft long weighs neighborhood 60 lb Brian Allen pilot power plant great Gossamer ffights incidentally winner prize money pilot history doing Charlie Sink graduates Aeroplanes Flying Machines class called work Bill fuselage Built 2024 T-3 aluminum alloy tubing 7075-0 gussets fuselage tremen dously strong gussets pressureformed dies Bill made poprivets fasten tubes Warren-truss configuration prop has spruce spar main blades made Styrofoam prop driven pedal crank standard bicycle chain connec ted two plastic-cable chains sort used Gossamers lever pilots left controls vectoring propeller thrust up downnot much RC blimp enough make difference between climb descent small crank pilots right controls rudder position monitored small rear-view mirror rudder itself features Styro foam rib cores spruce cap strips May1985 83 F- NW Back 19605 Bill Watson introduced kids lighter-than-air flying models Aero planes Plying Machines class summer science workshops California Museum Science industry Los Angeles Now hes made person-powered Bill Watsons rubber-powered blimps early 1970s Bag made two gores drycleaners bag Flightsof several mlnuteswere possible undera ratheriowceiling Bill Watson rides airship walked its flying site Camarillo Airport Hes riding because ship needs bailast novice can fly after brief Instruction period double-covered thin Mylar film Total weights compensate carrying different fuselage weight 60 lb loads wide variation pilot Ballast tanks fore aft fiber- weights An equilibrator consisting glass can emptied water about several lead weights rope normally minute pilot Easily-attached lead carried bag side fuselage Until new pilot has few flights under belt hung down under airship too-rapid descent becomes docile touch down lengths rope contacting ground progressively light ens craft much-appreciated feature pilots free-flying gas balloons retrievable ballast model airplane motor prop adorn front fuselage belt-drive Astro 40 18-6 prop can turned right left pilot theory used help sharp corners buck headwinds practice has little effect may removed future Instrumentation includes audible va riometer buzz pitches higher go up airspeed indicator bag pressure indicator FM radio ground communication Actually yelling between craft ground makes radio unnecessary airship makes no noise compete yell attachment cords between fuse lage envelope Kevlar surrounded Dacron ultraviolet protection abrasion resistance Reinforced round patches glued gas bag distribute load reality large safety factor having minimum number attachment cords seat belt has backup should come un buckled Inflating bag takes lot gas 16ft diameter bag requires over 20 tanks helium about 6000 cu ft price helium does bother Watsons RC electric-powered blimp named Golden Footballas seen rear Motor attached rudder better direc tional control Rear surfaces fixed front planes controllable Photo Don Monroe Right Bill Watson L adjusts ballast forGalla gher about take flight Gallagher successful TV comedian philosopher wants people take notice Little White Cloud stop polluting air Brian Allen Gossamer Condor Albatross fame calls ship ultimate ultralight trainer 84 Model Aviation $13000 just envelope may start thinking terms smaller model blimp Bill now building smaller livingroom version RC Electric arrived Camarillo Airport first glimpse magnificent airship early morning cant fly wind dead-calm about 7 am 10 am about can day Houston Astrodome can fly anytime top speed around 9 mph cruse 7 mph mercy elements airship temporarily nicknamed White Dwarf pending contest officially name walked out flying spot few hundred feet wide bounded hangars airplanes tether rope some 50 70 ft attached just case gust miscalcula tion should imperil ship left slack blimp would fly its own After couple shakedown flights Bill Watson graciously consented let have go will admit being absolutely fearless right up time about 40 ft off ground discovered incipient acrophobia person going make its presence felt rig Before liftoff bag pressure about two four hundredths pound per square inch checked auto matic valve let out excess pressure gets too great pilot has access normal seldom used pressure release valve No problem Bill Brian adjust water levels ballast tanks make ship about 1 lb heavier its hover ing weight zero After weighing off its time pedal prop pointing upward climb plane lever approximates plane prop rotation know much vectoring giving takes pedalling take effect ship responds thrust rudder changes what seems about 15-sec delay Still cares stopped pedalling took stock what next ship just hung Fantastic Well lets center rudder go pedal harder go faster pedal backwards slowly stop begin backup blades prop adjustable ground new lower-pitch setting used day says Bill gives better speed both directions What view up may slow its sure sitting front TV set two seat belts felt good though balancing narrow fiberglass semirecumbent seat Rudder hard over moving wellabout 6 mph think could get like Quiet except swish-swish-swish prop turning 330 rpm After few circuits Continued page 170 May1985 85 Bill Watson turning blimp kept tethered though flying free just case flying site between hangars parked aircraft tiniest breeze could present significant hazard Watson f lies overhead Note pyramidal water baiiasttanks helium Tillertube wfllch runs down pilot case need release gas Bill Phyllis Warner pics exceptas noted better half Warner team Phyllis flies blimp overhead Easily visible three transmission chains fiberglass pyramids containing water ballast right hand rudder crank rearvlew mirror shows rudder position bag hanging side holds equilibratorrope weights attached along its length can deployed ease landings novices Total fuselage weight about 60 lb Slow Combat model has terrible engine runs youre sure isnt fuel engine suspect tank Ive got hot tip Bob Nicks Triangle Hobbies makes various size tanks becoming standard Slow Combat also sells Eagle Slow Combat foam cores plans assort ed other Combat goodies Write him 1211 Brookgreen Dr Gary NC 27511 call 919 467-6720 several other manufacturers Ill mention later columns Charlie Johnson 3716 graham St San Diego CA 92109 619 273-6530 Geophysical Driskill-Hunton Continued page 78 fuselage add fin stabilizer parts fin should mounted slot Install bellcrank mounting plates Install hardwood dowels engine mount crosspiece bellcrank mounting plate limit bellcrank travel rear wing pin Cut elevator parts shape join Sand elevator smooth airfoil shape Apply light giass cloth center section elevator CyA Install hinge tubes epoxy using filament tape reinforcing Finish fuselage elevator assem blies fuel-proof system Make effort keep nose light since tail weight will probably have added make model balance properly Install bellcrank 0021 leadouts Lead-outs can fished through wing piece wire Install elevator elevator horn Joggle rear end pushrod extra jog fine adjustment Install engine fuel system Cut hardwood stub spars length slide fuselage Pre-fit wings can get carbon-fiber material slide %-in-wide piece over stub spar extend 3 onto main wing spar Use CyA anchoring carbon-fiber wings fuselage carbonfiber material available coat joining surfaces epoxy assemble wings Balance model center gravity approximately / ahead center main spar can make controls responsive adding weight tail moving CG rear ward small increments Geophysical light responsive flying skills rusty building sport-stunt trainer begin CG well forward slower con trol response Combat trim hands experienced flier like Larry Driskill Geophysical awesome Blimp/Warner Continued page 85 course ready come down Pedalling tends tire novice easily mentioned earlier found really too crazy about heights though flying has never bothered least before case thrill never forgotten As morning progressed wide vane ty experienced novice pilots took blimp spin Gallagher Bill Charlie Brian couple other old hands certainly rig well hand could make go exactly wanted Newcomers like wife Phyllis Bills 1 2-year-old nephew George lady ran kindergarten tcok first flights mastered ship loved minute Peripatetic Raindrop name registered ultralight aircraft flying weight 1 lb probably lightest ultralights world According Brian Allen ship . ludicrously easy train someone four times strong anything else Besides says Brian other Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marine K&B FUELSKAB GLOW PLUGS 7 Blends4 c5oices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMERKAB SUPER POXY PAINT K&B MIXING CUPS 170 ModelAviation ML & CRAFT 16th ANNUAL APRIL 27th & 28th LONG BEACH CONVENTION CENTER 300 E OCEAN BLVD LONG BEACH GENERAL ADMISSION ADULTS $400 UNDER 12 $250 / UNDER 6 FREE HOBBY CONTESTS DEMONSTRATIONS EXHIBITIONS Contest Details Local Hobby Shop through Local Club Contact MACS CONTEST DIRECTOR P0 Box 284 Westminster CA 92684 714 891-9559 MACS IS SELLING SHOW New Model Magic Products Model Magic Epoxy Plus 2 Part 8 Mm Use anywhere two part epoxy used 25% lighter Sandable Carveable Excellent Gap Filling Non Sagging Superior Strength Sands Carves Like Basswood II 6 fI oz$895 Equal over 8 wt regular epoxys See dealer firnt Ehen wriRe cBII Model MagIc PudUCtS kc P0 Don 19784 5tu MN 55119 17151425-1397 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak137 158 AMA Membership Academy Av Research & 0ev137 Ace Radio Control139 Airtronics2 Applied Design142 Astro Flight158 Balsa USA15 Blue Ridge Models146 Bru Line Industries5 Byron Originals86-86 CB Associates137 Ca Ra Products139 Carolina-Taffinder138 Johnnie Casburn Mfg143 Champion Model Products146 Chevron165 Circus Hobbies156 168 Cleveland Model & Supply Co161 Eric Clutton164 Consumers Guide47 Coverite1 Curtis Model Aircraft24 D&D Engineering151 DGA Designs161 Davey Systems Corp20 151 Larry Dodge Aero Inc164 Dodgson Designs152 Dougs Hobby Shop166-167 Du-Bro Products Inc4 FAI Model Supply153 FHS Supply Inc12 Flyline Models160 Fourmost Products136 Fox Mfg22 Fun Fly142 Futaba Corp America25 Gator RC Products138 Gemini Models157 Carl Goldberg Models13 147 Golden Gate Hobbies49 Gorham Model Products14 Great Planes Model Mfg Co162 Historic Aviation21 Hobby Barn134-1 35 Hobby Capitol Distributors159 Hobby Horn78 Hobby Lobby International9 Hobbypoxy146 Hobby World Imports170 Holleys Silent Flight151 Howard B Huebi171 Ikon Northwest Co165 Indy RC Sales Inc154-1 55 Jomar Products24 K&BMfgCo170 K&S Engineering148 K W Enterprises153 Knights Air168 Kraft Systems Inc23 Kustom Kraftsmanship147 L&L Model Products165 Lindsey Micro Products165 Lone Star Models45 Lutmi Enterprises164 MACS Products171 Master Kit162 McDaniel RC Service169 Messers Quality Model Prod171 Micro Mark24 162 Micro Model Engineering160 Micro-X-Products151 Model & Craft Show170 Model Magic Products170 Model Rectifier CorpCovers 2 & 3 Morley Helicopters USA157 Mutchiers Hobbies140-141 Nor-Cal Avionics160 North Products146 Ocean State Aeromodel Eng165 Ohio Superstar22 PK Products158 Peck-Polymers162 Penn Valley Hobby Center160 Peripheral Systems Inc149 Pica Products7 Polks Hobby8-9 Proctor Enterprises5 RC Soaring Digest148 Repla-Tech International146 Robbe Modellsport79 RoushMfg161168 SR Batteries148 S&W Hobby Supply150 Sailplanes World150 Satellite City93 Scratch-A-Plane71 Shamrock Competition Imports133 Sheldons Hobby Shop144-1 45 169 Sig Mfg Co5 ii Simplex Miniature Engines159 Southeastern Air Craft ers153 St Croix Park Falls156 Stan dale Aircraft152 Sterling Models47 Swanson Associates150 TG Mfg164 Tatone Products Co20 Tidewater Eng & Machine Co136 Top Flite Models Inc157 Tower Hobbies163 US Eagle138 VK Model Aircraft139 VL Products78 Videotech146 WE Technical Services6 Williams Brothers159 Wilshire Model Center14 Windsor Propeller Co156 World EnginesCover 4 Zenith Aviation Publications37 Nick Ziroli Models12 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX human-powered craft can flown doors Ihe possibilities model humanpowered blimps Gallagher has ased RC model looked like watermelon TV show Peck-Poly ners has quite inexpensive blimp being told more promotional stunts several countries interested military purposes Aside its eye-catching advantages advertising human-powered might set upto give rides maybe selling Polaroid shot videotape customer afterwards might have human-powered blimp race event next Olympics cant afford big ones though remember got started rubber-powered models Secrets None really Just add weight until model just hovers add just atadto bring down power runs out prop lower gas bag airship will climb naturally thrust continually pushing up nose positive angle attack Good year blimp works way vectored thrust icing cake want go RCContinued page 172 IN sTocK FOR IMMEDIATE SHIPMENT NEW RA 508$19995 New Onadra 36 col$10995 Reg Qoedre 39 $9996 Brisighella $Iywhml$11995 Reg Onadra 36 Power Aosesbly Only$6450 QUADRA REPAIR$1000 pins parts Jin Messer ERcOUPEPlANS $2396 KIT $23996 Jin Mesner TOMAHAWKPLANS $2396 KIT $36996 Jin Meson 9-BALL TRAINERPLANS $1996 KIT $19996 BALSA end BASSWOOD 111 sitesSig pioen lens 19% New ZENOAH 0-23 $13696ZENOAH 0-36 $ 9996 FLOATS 30116 noelonren $1796onnoplete kit $3996 FLOATS 49114 no1 cores $2196contpleoe kit $4796 10 WWI WHEELS 3696 PieW cyiS FLEETS$3696 PLANS SUPER STEARMAN 114 Godfrey$3996 STARDUSTER TOO 1I4Bringhelle 13 J3 CUB Nelit$2996 VOLKSPLANE 113 Chicken Cherlie$2396 COCKPIT KITS Tontahnwk F4U-1 Spitfire ME109$2396 Ernoope Fleet J3 Cob POE P47 C Eagle$2196 Cloak $2496 Zero $2696 Zero exteror$1096 US Onedra FUEL TANKS16 o $69623 n $796 FIBERGLASSARROWSHAFTS6/16o23long0l$1OO0 24-Hour Service. Add 5250 p stage Send flank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS valley view Dr. Boo 43 Allegany NY 14706 PRODUCTS FflA ThP ntcrpmuius MfliWi CE Complete Line Exhaust Systems d Pipes Muffled Tuned Pines Headers Venturi Mufflers Expansion Mufflers * Helicopter PRECISION BALANCE ALLBall Mufflers Specialized Exhaust Heres ho equipment need gwe prop 0iy best Systems balance-balance directions Carefidly crafted top grade Linsurpassad Workinan-ehin fonnaace materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Dlher sizes avadable special order [alers muted $1795 Add$ISOfen HOWARD B HUERL DEFT ODS pentege beadleg le Mis 6% ealee Pun lie C0Da Boo 92 Rt S Mankato MN 56001 May1985 171 FULL SIZE PLANS No 473 No 474 No 475 Tucano$1250 RC Sport Sosie spans 66 uses 60-75 engines Three sheets Pacer 15$500 FF 1983 FAI Class Fl World Champion Towline Glider Geophysical$400 CL Slow Combat model uses geodetic wing construction Two sheets $375 lb 133Stte CL Stunt mmlel McOnnab winnerl976 19801982 PAl Wend Cp$ Ne 281lb lkdn AC Ken Willards immatlon plane 4-channel 1 0-pnwer$125 lb 252Cmubmastho CL Crash jo-oct trainer two sizesl 5-30- 35-40-power .. lb 233See B IL pentsbe AC /4-scala hy Ilaflke tsr 91 power Prototype span 30 ft Two-and-a-half sheets$1175 Ne 362F1S AC Sarpolas 049 dected fan sport ttierfor2-channel Balsa wings tall hise structure$ 275 Na 3161330 Fleet 3bae AC SportScale 35-40 4-channel Wingspan 56 inscale Two sheets $ 625 Ne 314Drake t AC Ken willards flying beat 3-channel 1 5-power Fly front land removable gear$ 375 Ne 328Taller Cab AC Don Sruts Schoolyard-Scala br 049s 2-3 channel Spans 50 in$ 350 Ne 332 Zapbym AC Small 2-channel glider tsr hand-lasoch tow thermaL slope soaring $ 200 Ne 358 Pbceo FF Indoor Easy B Aubber-power contest-winner hy W Van Corder $100 Ne 383ClEats S2 AC Fly lIds sleek Nets winiting Sailplane AMA Mod Std Unlhnited classes$750 Ne 386Laser 200 AC Sport Scale repOca championship Aerohatic Bler Uses 40 power 4-5 channel Two sheets-$1075 Ne 318Sm Sm 81 AC flaflkes latest /4-scale spans iSis weighs 15 0, flIes 90 ar larger Foar sheets doc$2225 Ne 414BleabIc Spenky AC electric-powered fun tiler lorDS motor 3-channel AC scaled epi 939 robber-power lavoille$850 Ne 4226eetsr AC Two-Meter Sailplane has won Nats event 101982 1983 plea other contests- $550 Ne 423dud Cnisec AC Old-Timer takes 60-power 3-channel AC Two-pace wing optman tar easy transport Two sheets$1275 Ne 424Seed lent FF Emlays Enderasce robber-power fboalpiane has optional wheels stlck-and-tissan delight$ 200 Ne 426Clba Clppu AC Fabulous 74-in-span Sport Scale Ilying boat leer 1 B-size engines 4-channel Three sheets no don$2000 Ne 428Over E-Z CL Old-Timer Stunt biplane has praBle fuselage uses 25 engine$ 400 Ne438keeaMeRCZippyllttlesportsterlOiI0-lsPoweraOd3-channelAC -$ 400 Ne 431Lbheed P-35 AC Fao-scale twio-1 5-f lmr 4-channels Two sheets$1 300 Ne 432Fkeeaia CL Updated Thanderbird-style Stunter Ito- 35-40 engines -$ 575 lIe 433Wafba Up AC Electric-powered gilder tsr 2-3 channels 035 motor spans 52 in$ 450 Ne 435ThIn N AC Aerohatic biplane 40 engines 4-chasnels Great sport Ilyl$ 650 Ne 437KIqIsluc CL Profile Cantor plane spans 40/z in. noes 35 engIne$ 600 Ne 435Ciuleer FF Embryo Endurance robber-power tan slap has big-model characterlstlcs$ 200 Ne 433Deapenaic AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 Ne 440 Cavalec AC Old-Timer-like new design has hnge wing slow easy Bights 35 power 3 channels Two sheets $1 725 lb U1E WIt FF Hot small lightweight cmnpotitlso ship tsr 15 power designer Harry Murphy $ 475 Ne 442 Lang Ouch AC Big canard sport fter /nA-09 power 2 channels Uses loam board parts $ 650 Ne 444 Fbeldt AC pusher canard spartlpattem sam 40 pusher engine 4-channel Has swept-forward loam wings $ 650 Ne 445 Nesaitl Ceegac CL Scala model popular homehuilt won Nuts Uses 21 engine spans 41 in $ 925 Ne 445 La Crab AC Electric-powered sport flIer 05 motors 3-channels Two veraisos parasol cabin $ 550 Ne 447 YeA faa Amutol AC Old-Timer /sA Texaco model 049 glow 2-channels 50 Ne 443 SeAm CL SportlSlont plane 40-size 4-stroke engine builds last easy . $ 600 Ne 451 B llpbee 5ei ftC Aedesigo sleek 1937 FF biplane tsr 3-4 channels 29-40 power Two sheets $1175 lb 452 Bee Sm Z AC Osarter-scale spans 71 ses 90 power Foor sheets $1 600 $ 550 lb 453 Smeeflde meSa CL Prsfilo rendition 01 Bob Palmers supor-Stunter 01 early Fitties tsr 35 power $ 2011 lb 454Sweet P-30 FF Neat stich-and-tissue Ouldoor Aubber P-3D-class model isa coolest-winner Ne 458HfTeeh 2851 AC Dacted-tan lotaristic-leoking canard 25-size engines Built-up construction Three sheets$1175 Ne 457Speoha AC Electric-power 05-size motor uses 3 different wings sport soaring aerobatics$ 700 lb 458Beenllena CL Profile Canter 1 5-power events Two sheets$ 575 lb 453Sky renault FF Aebber-power old-timer designed Joc Ott 1932$ 300 Na 450440 AC Shoulder-wing spud Bier 4-cycle 40-size engine 4 channels$ 650 lb 461Tifabo Sanoateneec CL Famous untlapped Stunter late Farties Uses 35 engine$ 650 Ne 462Paula PE FF Jumbo Aubber Scale 01 WW taken observation plane$ 400 $ 475 lb 463Pletylmehletbea Vt AC mA Pylon racer uses lots ito ply built-up struclore tar strength lightness$ 325 lb 454Suedaecem CL bA sport flier all-sheet-balsa can use Tee Dee 049 lb 455Wee Mast AC Fuo-fly sportster 40-size engines spans 52 Lightweight strectare$ 700 lb 456CeuepeNfer CLStanterfor 60 power has 850 sq wing urea$ 575 Na 467Aloe Spent FF Aubber Scale desigo won 63 Nuts tar designer Don Srall Wingspan 2610$ 250 Ne 468Smeethe CL Stunter 29135 power Design bused hybrid SmoothielNebler$ 675 lb 463Sm Ktohet AC Sport Scale rendering Polish hmneboitl pusher Spans 75 uses 40-size 4-cycle engion Four sheets$2075 lb 470Slreher AC Mld-wlng sportster uses 40145 four-stroke engine spans 50/o tail-dragger$ 650 $ 575 lb 471Negas Aetaa CL Profile Stunt trainer spans 54 uses 35140 engine Flapped wing$ 550 lb 472Peracraft AC Craft has flesible paroled wing uses 3 AC channels 60 engine. 0 us n cJ 0t C 60 Zus 030 c us - 0 V us c0- 0 usus CV mm V o-t us 0 us V 0us 0 0us 0us c Ous ea 03 uC 03 STATE II Circle numbers plans wish order 193 326 422 432 441 451 459 466 473 239 332 423 433 442 452 460 467 474 262 358 424 435 444 453 461 468 475 299 383 426 437 445 454 462 469 302 386 429 438 446 456 463 470 Plan pnlce lacledes first class pinup tt US delvery wMch Alt MaE over 300 laNes l stun gutsMs fits US. please add $250 Air Mail $1 25 surface mail 310 398 430 439 447 457 464 471 314 414 431 440 449 458 465 472 0 Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Or, 1165100 VA 22090 Please allow 3 6 weeks delivery Please print carefullyEnclosed $__________________________________ NAME STREET CITY ZIP Happy flying stay out cactus Editor March 1981 Model viadon contained two excellent articles RC model airships Slow Year Blimp Lou Bruhn Summer Breeze Balloon Luther Hux Elec Floatplanes/PoIing Continued page 92 pieces area behind step should go first large piece area front step Allow generous overlap between two Cover top last Accept inevitable wrinides float curved hard get away few cant seen air anyway water rudder handy steering especially after landing have - get plane back shore breeze have taxi crosswind downwind can almost impossible water rudder can have enough power get plane step air rudder effective Personal ly have bad habit flying long can have enough power idle back displacement mode displace ment mode air rudder doesnt much short power blasts will help mentioned dont land enough power left use 3 sq water rudder 590 sq plane can scale other sizes using ratio wing rudder area water rudder attached directly air rudder simplicity Look closely photo can see rudder made music wire bent rectangular U plastic sheet surface taped together clear package wrap ping tape available stationety stores Part music wire left vertical stub matching stub attached rudder wheel collar joins wheel collar wonderful allows both side-to-side vertical adjustment rudder rudder should adjusted vertically top just out water plane sitting water no power Under power plane rocks back floats rudder well underwaterbut step rudder completely out water no drag Clever did water rudder years because drag severe enough prevent taking off finally simple system popped mind Now have benefits problems Another potential problem effect water rudder drag rudder hinges can severe provide tube rudder stub go through attached fuselage relieve drag pressure Enough now Next month will get final setup tips techniques - water flying Get plane ready continued 172 ModelAviation
Edition: Model Aviation - 1985/05
Page Numbers: 80, 81, 82, 83, 84, 85, 170, 171, 172
NO OCR TEXT NO OCR TEXT balloon envelope putting gon dola made material Styrofoam egg carton directly balloon vinyl electricians tape motor stick balsa business end power supply balsa stick aluminum tube bearing prop kids made stack balsa laminations fanned out glued sanded pinch wed use heavier plastic prop fins cut construction paper stuck Magic Mending Tape About 2-ft loop 1/16-in rubber would give flights lasting 2 min aroom 12-ft ceiling blimps bounce off walls few years later Bill Watson making Radio Control blimps some sophistication sight behold Pasadena IM Show dozen-footlong Golden Football used 48 cubic feet helium welcome relief flam mable hydrogen provide lift Helium lifts little less hydrogen whole lot safer Too bad Hinden burg designed bags helium sur rounding hydrogen cores wasnt able get last resort used hydrogren way almost way disastrous consequences know well Helium lifts little less 1 oz per cu ft quite bit can hot air fuselage Golden Football suspended about foot beneath shining eight-gore DuPont Kapton Key lar film bag electric motor Astro 02 rigged rudder-aided directional control Longitudinal control stability came fixed stabilizer rear movable like diving planes submarine front carried 5 oz water ballast motor could con trolled give reverse flight Try winged RC airplane nice feature design release mechan ism dropping things like small hang gliders altitude Bills rcent RC blimp drops things too much smaller practical small gyms carries 17 cu ft helium its aluminized Mylar bag oovering Saran-coated seals easily heat Bill says doesnt know can get though high-tech mate rials came him via team built famous Gossamer Albatross Gossa mer Condor Bill apart both projects knows about super-light oon struction almost anyone know entire aluminized blimp 6 ft long has 3 oz material gas bag two-gore designsimple make having lots wrinkles critical fly 3 mph three-channel radio operates motor speed power motor like type used servos thrust vectoring up down rudder rudder tied gimballed motor mount applying rudder moves motor thrust sideways give turns proverbial dime up down control provides range thrust straight up straight down maneuverable 82 Model Aviation van delivered cylinder helium top off airship hazards ot buy ing pig poke tank proved empty Water ballast added front tank ship will weigh about pound individual pilot before being flown Watsons latest RC blimp Indoor flying equipped drop PF hang glider up nearthe ceiling Electric motor power swivels directions altitude turn control miunareds kids have made model blimps like authors classes over last 15 yearsmainly due Bill Watsons inspiration assistance rubber-powered model guaranteed fly crash just means bouncing off wall Styrofoam gondola often pressed illto service retrieve Peanut Scale microfilm-covered ships overhead lights Paul Revere Junior High School Indoor meets Long interested human power Bill helping build Paul Mac Cready Gossamers also hang gliders bicycles speed record attempts Ontario Raceway shells racing bicycles inventiveness eventually brought him contact top people human-powered vehicles also got him building unusual stuff movies Radio Control ptero dactyl movie War Games contact changed life meeting popular comedian Gallagher Gallagher run-of-the-mill comic highly-imaginative creative phil osopher love humanity na ture drives him some pretty zany demonstrations idea non-pollut ing little cloud could pedalled about process provide vehicle getting people look skyward think about what doing air born Bill given carte blanche make though copythe golden age blimp having peaked some 75 years earlier Drawing model experience Bill did basic design workkicking around ideas Blame Rawdon Bart Hibbs provided invaluable assistance stress analysis configuration com puter-designing prop ala Larrabee know about computerdesigned props An order placed Raven firm makes types hot-air gas-filled envelopes tear drop-shaped envelope ripstop nylon urethane coating made 16 gores gores less wrinldes fewer wrinides less drag finished bag 47 ft long weighs neighborhood 60 lb Brian Allen pilot power plant great Gossamer ffights incidentally winner prize money pilot history doing Charlie Sink graduates Aeroplanes Flying Machines class called work Bill fuselage Built 2024 T-3 aluminum alloy tubing 7075-0 gussets fuselage tremen dously strong gussets pressureformed dies Bill made poprivets fasten tubes Warren-truss configuration prop has spruce spar main blades made Styrofoam prop driven pedal crank standard bicycle chain connec ted two plastic-cable chains sort used Gossamers lever pilots left controls vectoring propeller thrust up downnot much RC blimp enough make difference between climb descent small crank pilots right controls rudder position monitored small rear-view mirror rudder itself features Styro foam rib cores spruce cap strips May1985 83 F- NW Back 19605 Bill Watson introduced kids lighter-than-air flying models Aero planes Plying Machines class summer science workshops California Museum Science industry Los Angeles Now hes made person-powered Bill Watsons rubber-powered blimps early 1970s Bag made two gores drycleaners bag Flightsof several mlnuteswere possible undera ratheriowceiling Bill Watson rides airship walked its flying site Camarillo Airport Hes riding because ship needs bailast novice can fly after brief Instruction period double-covered thin Mylar film Total weights compensate carrying different fuselage weight 60 lb loads wide variation pilot Ballast tanks fore aft fiber- weights An equilibrator consisting glass can emptied water about several lead weights rope normally minute pilot Easily-attached lead carried bag side fuselage Until new pilot has few flights under belt hung down under airship too-rapid descent becomes docile touch down lengths rope contacting ground progressively light ens craft much-appreciated feature pilots free-flying gas balloons retrievable ballast model airplane motor prop adorn front fuselage belt-drive Astro 40 18-6 prop can turned right left pilot theory used help sharp corners buck headwinds practice has little effect may removed future Instrumentation includes audible va riometer buzz pitches higher go up airspeed indicator bag pressure indicator FM radio ground communication Actually yelling between craft ground makes radio unnecessary airship makes no noise compete yell attachment cords between fuse lage envelope Kevlar surrounded Dacron ultraviolet protection abrasion resistance Reinforced round patches glued gas bag distribute load reality large safety factor having minimum number attachment cords seat belt has backup should come un buckled Inflating bag takes lot gas 16ft diameter bag requires over 20 tanks helium about 6000 cu ft price helium does bother Watsons RC electric-powered blimp named Golden Footballas seen rear Motor attached rudder better direc tional control Rear surfaces fixed front planes controllable Photo Don Monroe Right Bill Watson L adjusts ballast forGalla gher about take flight Gallagher successful TV comedian philosopher wants people take notice Little White Cloud stop polluting air Brian Allen Gossamer Condor Albatross fame calls ship ultimate ultralight trainer 84 Model Aviation $13000 just envelope may start thinking terms smaller model blimp Bill now building smaller livingroom version RC Electric arrived Camarillo Airport first glimpse magnificent airship early morning cant fly wind dead-calm about 7 am 10 am about can day Houston Astrodome can fly anytime top speed around 9 mph cruse 7 mph mercy elements airship temporarily nicknamed White Dwarf pending contest officially name walked out flying spot few hundred feet wide bounded hangars airplanes tether rope some 50 70 ft attached just case gust miscalcula tion should imperil ship left slack blimp would fly its own After couple shakedown flights Bill Watson graciously consented let have go will admit being absolutely fearless right up time about 40 ft off ground discovered incipient acrophobia person going make its presence felt rig Before liftoff bag pressure about two four hundredths pound per square inch checked auto matic valve let out excess pressure gets too great pilot has access normal seldom used pressure release valve No problem Bill Brian adjust water levels ballast tanks make ship about 1 lb heavier its hover ing weight zero After weighing off its time pedal prop pointing upward climb plane lever approximates plane prop rotation know much vectoring giving takes pedalling take effect ship responds thrust rudder changes what seems about 15-sec delay Still cares stopped pedalling took stock what next ship just hung Fantastic Well lets center rudder go pedal harder go faster pedal backwards slowly stop begin backup blades prop adjustable ground new lower-pitch setting used day says Bill gives better speed both directions What view up may slow its sure sitting front TV set two seat belts felt good though balancing narrow fiberglass semirecumbent seat Rudder hard over moving wellabout 6 mph think could get like Quiet except swish-swish-swish prop turning 330 rpm After few circuits Continued page 170 May1985 85 Bill Watson turning blimp kept tethered though flying free just case flying site between hangars parked aircraft tiniest breeze could present significant hazard Watson f lies overhead Note pyramidal water baiiasttanks helium Tillertube wfllch runs down pilot case need release gas Bill Phyllis Warner pics exceptas noted better half Warner team Phyllis flies blimp overhead Easily visible three transmission chains fiberglass pyramids containing water ballast right hand rudder crank rearvlew mirror shows rudder position bag hanging side holds equilibratorrope weights attached along its length can deployed ease landings novices Total fuselage weight about 60 lb Slow Combat model has terrible engine runs youre sure isnt fuel engine suspect tank Ive got hot tip Bob Nicks Triangle Hobbies makes various size tanks becoming standard Slow Combat also sells Eagle Slow Combat foam cores plans assort ed other Combat goodies Write him 1211 Brookgreen Dr Gary NC 27511 call 919 467-6720 several other manufacturers Ill mention later columns Charlie Johnson 3716 graham St San Diego CA 92109 619 273-6530 Geophysical Driskill-Hunton Continued page 78 fuselage add fin stabilizer parts fin should mounted slot Install bellcrank mounting plates Install hardwood dowels engine mount crosspiece bellcrank mounting plate limit bellcrank travel rear wing pin Cut elevator parts shape join Sand elevator smooth airfoil shape Apply light giass cloth center section elevator CyA Install hinge tubes epoxy using filament tape reinforcing Finish fuselage elevator assem blies fuel-proof system Make effort keep nose light since tail weight will probably have added make model balance properly Install bellcrank 0021 leadouts Lead-outs can fished through wing piece wire Install elevator elevator horn Joggle rear end pushrod extra jog fine adjustment Install engine fuel system Cut hardwood stub spars length slide fuselage Pre-fit wings can get carbon-fiber material slide %-in-wide piece over stub spar extend 3 onto main wing spar Use CyA anchoring carbon-fiber wings fuselage carbonfiber material available coat joining surfaces epoxy assemble wings Balance model center gravity approximately / ahead center main spar can make controls responsive adding weight tail moving CG rear ward small increments Geophysical light responsive flying skills rusty building sport-stunt trainer begin CG well forward slower con trol response Combat trim hands experienced flier like Larry Driskill Geophysical awesome Blimp/Warner Continued page 85 course ready come down Pedalling tends tire novice easily mentioned earlier found really too crazy about heights though flying has never bothered least before case thrill never forgotten As morning progressed wide vane ty experienced novice pilots took blimp spin Gallagher Bill Charlie Brian couple other old hands certainly rig well hand could make go exactly wanted Newcomers like wife Phyllis Bills 1 2-year-old nephew George lady ran kindergarten tcok first flights mastered ship loved minute Peripatetic Raindrop name registered ultralight aircraft flying weight 1 lb probably lightest ultralights world According Brian Allen ship . ludicrously easy train someone four times strong anything else Besides says Brian other Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marine K&B FUELSKAB GLOW PLUGS 7 Blends4 c5oices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMERKAB SUPER POXY PAINT K&B MIXING CUPS 170 ModelAviation ML & CRAFT 16th ANNUAL APRIL 27th & 28th LONG BEACH CONVENTION CENTER 300 E OCEAN BLVD LONG BEACH GENERAL ADMISSION ADULTS $400 UNDER 12 $250 / UNDER 6 FREE HOBBY CONTESTS DEMONSTRATIONS EXHIBITIONS Contest Details Local Hobby Shop through Local Club Contact MACS CONTEST DIRECTOR P0 Box 284 Westminster CA 92684 714 891-9559 MACS IS SELLING SHOW New Model Magic Products Model Magic Epoxy Plus 2 Part 8 Mm Use anywhere two part epoxy used 25% lighter Sandable Carveable Excellent Gap Filling Non Sagging Superior Strength Sands Carves Like Basswood II 6 fI oz$895 Equal over 8 wt regular epoxys See dealer firnt Ehen wriRe cBII Model MagIc PudUCtS kc P0 Don 19784 5tu MN 55119 17151425-1397 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak137 158 AMA Membership Academy Av Research & 0ev137 Ace Radio Control139 Airtronics2 Applied Design142 Astro Flight158 Balsa USA15 Blue Ridge Models146 Bru Line Industries5 Byron Originals86-86 CB Associates137 Ca Ra Products139 Carolina-Taffinder138 Johnnie Casburn Mfg143 Champion Model Products146 Chevron165 Circus Hobbies156 168 Cleveland Model & Supply Co161 Eric Clutton164 Consumers Guide47 Coverite1 Curtis Model Aircraft24 D&D Engineering151 DGA Designs161 Davey Systems Corp20 151 Larry Dodge Aero Inc164 Dodgson Designs152 Dougs Hobby Shop166-167 Du-Bro Products Inc4 FAI Model Supply153 FHS Supply Inc12 Flyline Models160 Fourmost Products136 Fox Mfg22 Fun Fly142 Futaba Corp America25 Gator RC Products138 Gemini Models157 Carl Goldberg Models13 147 Golden Gate Hobbies49 Gorham Model Products14 Great Planes Model Mfg Co162 Historic Aviation21 Hobby Barn134-1 35 Hobby Capitol Distributors159 Hobby Horn78 Hobby Lobby International9 Hobbypoxy146 Hobby World Imports170 Holleys Silent Flight151 Howard B Huebi171 Ikon Northwest Co165 Indy RC Sales Inc154-1 55 Jomar Products24 K&BMfgCo170 K&S Engineering148 K W Enterprises153 Knights Air168 Kraft Systems Inc23 Kustom Kraftsmanship147 L&L Model Products165 Lindsey Micro Products165 Lone Star Models45 Lutmi Enterprises164 MACS Products171 Master Kit162 McDaniel RC Service169 Messers Quality Model Prod171 Micro Mark24 162 Micro Model Engineering160 Micro-X-Products151 Model & Craft Show170 Model Magic Products170 Model Rectifier CorpCovers 2 & 3 Morley Helicopters USA157 Mutchiers Hobbies140-141 Nor-Cal Avionics160 North Products146 Ocean State Aeromodel Eng165 Ohio Superstar22 PK Products158 Peck-Polymers162 Penn Valley Hobby Center160 Peripheral Systems Inc149 Pica Products7 Polks Hobby8-9 Proctor Enterprises5 RC Soaring Digest148 Repla-Tech International146 Robbe Modellsport79 RoushMfg161168 SR Batteries148 S&W Hobby Supply150 Sailplanes World150 Satellite City93 Scratch-A-Plane71 Shamrock Competition Imports133 Sheldons Hobby Shop144-1 45 169 Sig Mfg Co5 ii Simplex Miniature Engines159 Southeastern Air Craft ers153 St Croix Park Falls156 Stan dale Aircraft152 Sterling Models47 Swanson Associates150 TG Mfg164 Tatone Products Co20 Tidewater Eng & Machine Co136 Top Flite Models Inc157 Tower Hobbies163 US Eagle138 VK Model Aircraft139 VL Products78 Videotech146 WE Technical Services6 Williams Brothers159 Wilshire Model Center14 Windsor Propeller Co156 World EnginesCover 4 Zenith Aviation Publications37 Nick Ziroli Models12 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX human-powered craft can flown doors Ihe possibilities model humanpowered blimps Gallagher has ased RC model looked like watermelon TV show Peck-Poly ners has quite inexpensive blimp being told more promotional stunts several countries interested military purposes Aside its eye-catching advantages advertising human-powered might set upto give rides maybe selling Polaroid shot videotape customer afterwards might have human-powered blimp race event next Olympics cant afford big ones though remember got started rubber-powered models Secrets None really Just add weight until model just hovers add just atadto bring down power runs out prop lower gas bag airship will climb naturally thrust continually pushing up nose positive angle attack Good year blimp works way vectored thrust icing cake want go RCContinued page 172 IN sTocK FOR IMMEDIATE SHIPMENT NEW RA 508$19995 New Onadra 36 col$10995 Reg Qoedre 39 $9996 Brisighella $Iywhml$11995 Reg Onadra 36 Power Aosesbly Only$6450 QUADRA REPAIR$1000 pins parts Jin Messer ERcOUPEPlANS $2396 KIT $23996 Jin Mesner TOMAHAWKPLANS $2396 KIT $36996 Jin Meson 9-BALL TRAINERPLANS $1996 KIT $19996 BALSA end BASSWOOD 111 sitesSig pioen lens 19% New ZENOAH 0-23 $13696ZENOAH 0-36 $ 9996 FLOATS 30116 noelonren $1796onnoplete kit $3996 FLOATS 49114 no1 cores $2196contpleoe kit $4796 10 WWI WHEELS 3696 PieW cyiS FLEETS$3696 PLANS SUPER STEARMAN 114 Godfrey$3996 STARDUSTER TOO 1I4Bringhelle 13 J3 CUB Nelit$2996 VOLKSPLANE 113 Chicken Cherlie$2396 COCKPIT KITS Tontahnwk F4U-1 Spitfire ME109$2396 Ernoope Fleet J3 Cob POE P47 C Eagle$2196 Cloak $2496 Zero $2696 Zero exteror$1096 US Onedra FUEL TANKS16 o $69623 n $796 FIBERGLASSARROWSHAFTS6/16o23long0l$1OO0 24-Hour Service. Add 5250 p stage Send flank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS valley view Dr. Boo 43 Allegany NY 14706 PRODUCTS FflA ThP ntcrpmuius MfliWi CE Complete Line Exhaust Systems d Pipes Muffled Tuned Pines Headers Venturi Mufflers Expansion Mufflers * Helicopter PRECISION BALANCE ALLBall Mufflers Specialized Exhaust Heres ho equipment need gwe prop 0iy best Systems balance-balance directions Carefidly crafted top grade Linsurpassad Workinan-ehin fonnaace materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Dlher sizes avadable special order [alers muted $1795 Add$ISOfen HOWARD B HUERL DEFT ODS pentege beadleg le Mis 6% ealee Pun lie C0Da Boo 92 Rt S Mankato MN 56001 May1985 171 FULL SIZE PLANS No 473 No 474 No 475 Tucano$1250 RC Sport Sosie spans 66 uses 60-75 engines Three sheets Pacer 15$500 FF 1983 FAI Class Fl World Champion Towline Glider Geophysical$400 CL Slow Combat model uses geodetic wing construction Two sheets $375 lb 133Stte CL Stunt mmlel McOnnab winnerl976 19801982 PAl Wend Cp$ Ne 281lb lkdn AC Ken Willards immatlon plane 4-channel 1 0-pnwer$125 lb 252Cmubmastho CL Crash jo-oct trainer two sizesl 5-30- 35-40-power .. lb 233See B IL pentsbe AC /4-scala hy Ilaflke tsr 91 power Prototype span 30 ft Two-and-a-half sheets$1175 Ne 362F1S AC Sarpolas 049 dected fan sport ttierfor2-channel Balsa wings tall hise structure$ 275 Na 3161330 Fleet 3bae AC SportScale 35-40 4-channel Wingspan 56 inscale Two sheets $ 625 Ne 314Drake t AC Ken willards flying beat 3-channel 1 5-power Fly front land removable gear$ 375 Ne 328Taller Cab AC Don Sruts Schoolyard-Scala br 049s 2-3 channel Spans 50 in$ 350 Ne 332 Zapbym AC Small 2-channel glider tsr hand-lasoch tow thermaL slope soaring $ 200 Ne 358 Pbceo FF Indoor Easy B Aubber-power contest-winner hy W Van Corder $100 Ne 383ClEats S2 AC Fly lIds sleek Nets winiting Sailplane AMA Mod Std Unlhnited classes$750 Ne 386Laser 200 AC Sport Scale repOca championship Aerohatic Bler Uses 40 power 4-5 channel Two sheets-$1075 Ne 318Sm Sm 81 AC flaflkes latest /4-scale spans iSis weighs 15 0, flIes 90 ar larger Foar sheets doc$2225 Ne 414BleabIc Spenky AC electric-powered fun tiler lorDS motor 3-channel AC scaled epi 939 robber-power lavoille$850 Ne 4226eetsr AC Two-Meter Sailplane has won Nats event 101982 1983 plea other contests- $550 Ne 423dud Cnisec AC Old-Timer takes 60-power 3-channel AC Two-pace wing optman tar easy transport Two sheets$1275 Ne 424Seed lent FF Emlays Enderasce robber-power fboalpiane has optional wheels stlck-and-tissan delight$ 200 Ne 426Clba Clppu AC Fabulous 74-in-span Sport Scale Ilying boat leer 1 B-size engines 4-channel Three sheets no don$2000 Ne 428Over E-Z CL Old-Timer Stunt biplane has praBle fuselage uses 25 engine$ 400 Ne438keeaMeRCZippyllttlesportsterlOiI0-lsPoweraOd3-channelAC -$ 400 Ne 431Lbheed P-35 AC Fao-scale twio-1 5-f lmr 4-channels Two sheets$1 300 Ne 432Fkeeaia CL Updated Thanderbird-style Stunter Ito- 35-40 engines -$ 575 lIe 433Wafba Up AC Electric-powered gilder tsr 2-3 channels 035 motor spans 52 in$ 450 Ne 435ThIn N AC Aerohatic biplane 40 engines 4-chasnels Great sport Ilyl$ 650 Ne 437KIqIsluc CL Profile Cantor plane spans 40/z in. noes 35 engIne$ 600 Ne 435Ciuleer FF Embryo Endurance robber-power tan slap has big-model characterlstlcs$ 200 Ne 433Deapenaic AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 Ne 440 Cavalec AC Old-Timer-like new design has hnge wing slow easy Bights 35 power 3 channels Two sheets $1 725 lb U1E WIt FF Hot small lightweight cmnpotitlso ship tsr 15 power designer Harry Murphy $ 475 Ne 442 Lang Ouch AC Big canard sport fter /nA-09 power 2 channels Uses loam board parts $ 650 Ne 444 Fbeldt AC pusher canard spartlpattem sam 40 pusher engine 4-channel Has swept-forward loam wings $ 650 Ne 445 Nesaitl Ceegac CL Scala model popular homehuilt won Nuts Uses 21 engine spans 41 in $ 925 Ne 445 La Crab AC Electric-powered sport flIer 05 motors 3-channels Two veraisos parasol cabin $ 550 Ne 447 YeA faa Amutol AC Old-Timer /sA Texaco model 049 glow 2-channels 50 Ne 443 SeAm CL SportlSlont plane 40-size 4-stroke engine builds last easy . $ 600 Ne 451 B llpbee 5ei ftC Aedesigo sleek 1937 FF biplane tsr 3-4 channels 29-40 power Two sheets $1175 lb 452 Bee Sm Z AC Osarter-scale spans 71 ses 90 power Foor sheets $1 600 $ 550 lb 453 Smeeflde meSa CL Prsfilo rendition 01 Bob Palmers supor-Stunter 01 early Fitties tsr 35 power $ 2011 lb 454Sweet P-30 FF Neat stich-and-tissue Ouldoor Aubber P-3D-class model isa coolest-winner Ne 458HfTeeh 2851 AC Dacted-tan lotaristic-leoking canard 25-size engines Built-up construction Three sheets$1175 Ne 457Speoha AC Electric-power 05-size motor uses 3 different wings sport soaring aerobatics$ 700 lb 458Beenllena CL Profile Canter 1 5-power events Two sheets$ 575 lb 453Sky renault FF Aebber-power old-timer designed Joc Ott 1932$ 300 Na 450440 AC Shoulder-wing spud Bier 4-cycle 40-size engine 4 channels$ 650 lb 461Tifabo Sanoateneec CL Famous untlapped Stunter late Farties Uses 35 engine$ 650 Ne 462Paula PE FF Jumbo Aubber Scale 01 WW taken observation plane$ 400 $ 475 lb 463Pletylmehletbea Vt AC mA Pylon racer uses lots ito ply built-up struclore tar strength lightness$ 325 lb 454Suedaecem CL bA sport flier all-sheet-balsa can use Tee Dee 049 lb 455Wee Mast AC Fuo-fly sportster 40-size engines spans 52 Lightweight strectare$ 700 lb 456CeuepeNfer CLStanterfor 60 power has 850 sq wing urea$ 575 Na 467Aloe Spent FF Aubber Scale desigo won 63 Nuts tar designer Don Srall Wingspan 2610$ 250 Ne 468Smeethe CL Stunter 29135 power Design bused hybrid SmoothielNebler$ 675 lb 463Sm Ktohet AC Sport Scale rendering Polish hmneboitl pusher Spans 75 uses 40-size 4-cycle engion Four sheets$2075 lb 470Slreher AC Mld-wlng sportster uses 40145 four-stroke engine spans 50/o tail-dragger$ 650 $ 575 lb 471Negas Aetaa CL Profile Stunt trainer spans 54 uses 35140 engine Flapped wing$ 550 lb 472Peracraft AC Craft has flesible paroled wing uses 3 AC channels 60 engine. 0 us n cJ 0t C 60 Zus 030 c us - 0 V us c0- 0 usus CV mm V o-t us 0 us V 0us 0 0us 0us c Ous ea 03 uC 03 STATE II Circle numbers plans wish order 193 326 422 432 441 451 459 466 473 239 332 423 433 442 452 460 467 474 262 358 424 435 444 453 461 468 475 299 383 426 437 445 454 462 469 302 386 429 438 446 456 463 470 Plan pnlce lacledes first class pinup tt US delvery wMch Alt MaE over 300 laNes l stun gutsMs fits US. please add $250 Air Mail $1 25 surface mail 310 398 430 439 447 457 464 471 314 414 431 440 449 458 465 472 0 Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Or, 1165100 VA 22090 Please allow 3 6 weeks delivery Please print carefullyEnclosed $__________________________________ NAME STREET CITY ZIP Happy flying stay out cactus Editor March 1981 Model viadon contained two excellent articles RC model airships Slow Year Blimp Lou Bruhn Summer Breeze Balloon Luther Hux Elec Floatplanes/PoIing Continued page 92 pieces area behind step should go first large piece area front step Allow generous overlap between two Cover top last Accept inevitable wrinides float curved hard get away few cant seen air anyway water rudder handy steering especially after landing have - get plane back shore breeze have taxi crosswind downwind can almost impossible water rudder can have enough power get plane step air rudder effective Personal ly have bad habit flying long can have enough power idle back displacement mode displace ment mode air rudder doesnt much short power blasts will help mentioned dont land enough power left use 3 sq water rudder 590 sq plane can scale other sizes using ratio wing rudder area water rudder attached directly air rudder simplicity Look closely photo can see rudder made music wire bent rectangular U plastic sheet surface taped together clear package wrap ping tape available stationety stores Part music wire left vertical stub matching stub attached rudder wheel collar joins wheel collar wonderful allows both side-to-side vertical adjustment rudder rudder should adjusted vertically top just out water plane sitting water no power Under power plane rocks back floats rudder well underwaterbut step rudder completely out water no drag Clever did water rudder years because drag severe enough prevent taking off finally simple system popped mind Now have benefits problems Another potential problem effect water rudder drag rudder hinges can severe provide tube rudder stub go through attached fuselage relieve drag pressure Enough now Next month will get final setup tips techniques - water flying Get plane ready continued 172 ModelAviation
Edition: Model Aviation - 1985/05
Page Numbers: 80, 81, 82, 83, 84, 85, 170, 171, 172
NO OCR TEXT NO OCR TEXT balloon envelope putting gon dola made material Styrofoam egg carton directly balloon vinyl electricians tape motor stick balsa business end power supply balsa stick aluminum tube bearing prop kids made stack balsa laminations fanned out glued sanded pinch wed use heavier plastic prop fins cut construction paper stuck Magic Mending Tape About 2-ft loop 1/16-in rubber would give flights lasting 2 min aroom 12-ft ceiling blimps bounce off walls few years later Bill Watson making Radio Control blimps some sophistication sight behold Pasadena IM Show dozen-footlong Golden Football used 48 cubic feet helium welcome relief flam mable hydrogen provide lift Helium lifts little less hydrogen whole lot safer Too bad Hinden burg designed bags helium sur rounding hydrogen cores wasnt able get last resort used hydrogren way almost way disastrous consequences know well Helium lifts little less 1 oz per cu ft quite bit can hot air fuselage Golden Football suspended about foot beneath shining eight-gore DuPont Kapton Key lar film bag electric motor Astro 02 rigged rudder-aided directional control Longitudinal control stability came fixed stabilizer rear movable like diving planes submarine front carried 5 oz water ballast motor could con trolled give reverse flight Try winged RC airplane nice feature design release mechan ism dropping things like small hang gliders altitude Bills rcent RC blimp drops things too much smaller practical small gyms carries 17 cu ft helium its aluminized Mylar bag oovering Saran-coated seals easily heat Bill says doesnt know can get though high-tech mate rials came him via team built famous Gossamer Albatross Gossa mer Condor Bill apart both projects knows about super-light oon struction almost anyone know entire aluminized blimp 6 ft long has 3 oz material gas bag two-gore designsimple make having lots wrinkles critical fly 3 mph three-channel radio operates motor speed power motor like type used servos thrust vectoring up down rudder rudder tied gimballed motor mount applying rudder moves motor thrust sideways give turns proverbial dime up down control provides range thrust straight up straight down maneuverable 82 Model Aviation van delivered cylinder helium top off airship hazards ot buy ing pig poke tank proved empty Water ballast added front tank ship will weigh about pound individual pilot before being flown Watsons latest RC blimp Indoor flying equipped drop PF hang glider up nearthe ceiling Electric motor power swivels directions altitude turn control miunareds kids have made model blimps like authors classes over last 15 yearsmainly due Bill Watsons inspiration assistance rubber-powered model guaranteed fly crash just means bouncing off wall Styrofoam gondola often pressed illto service retrieve Peanut Scale microfilm-covered ships overhead lights Paul Revere Junior High School Indoor meets Long interested human power Bill helping build Paul Mac Cready Gossamers also hang gliders bicycles speed record attempts Ontario Raceway shells racing bicycles inventiveness eventually brought him contact top people human-powered vehicles also got him building unusual stuff movies Radio Control ptero dactyl movie War Games contact changed life meeting popular comedian Gallagher Gallagher run-of-the-mill comic highly-imaginative creative phil osopher love humanity na ture drives him some pretty zany demonstrations idea non-pollut ing little cloud could pedalled about process provide vehicle getting people look skyward think about what doing air born Bill given carte blanche make though copythe golden age blimp having peaked some 75 years earlier Drawing model experience Bill did basic design workkicking around ideas Blame Rawdon Bart Hibbs provided invaluable assistance stress analysis configuration com puter-designing prop ala Larrabee know about computerdesigned props An order placed Raven firm makes types hot-air gas-filled envelopes tear drop-shaped envelope ripstop nylon urethane coating made 16 gores gores less wrinldes fewer wrinides less drag finished bag 47 ft long weighs neighborhood 60 lb Brian Allen pilot power plant great Gossamer ffights incidentally winner prize money pilot history doing Charlie Sink graduates Aeroplanes Flying Machines class called work Bill fuselage Built 2024 T-3 aluminum alloy tubing 7075-0 gussets fuselage tremen dously strong gussets pressureformed dies Bill made poprivets fasten tubes Warren-truss configuration prop has spruce spar main blades made Styrofoam prop driven pedal crank standard bicycle chain connec ted two plastic-cable chains sort used Gossamers lever pilots left controls vectoring propeller thrust up downnot much RC blimp enough make difference between climb descent small crank pilots right controls rudder position monitored small rear-view mirror rudder itself features Styro foam rib cores spruce cap strips May1985 83 F- NW Back 19605 Bill Watson introduced kids lighter-than-air flying models Aero planes Plying Machines class summer science workshops California Museum Science industry Los Angeles Now hes made person-powered Bill Watsons rubber-powered blimps early 1970s Bag made two gores drycleaners bag Flightsof several mlnuteswere possible undera ratheriowceiling Bill Watson rides airship walked its flying site Camarillo Airport Hes riding because ship needs bailast novice can fly after brief Instruction period double-covered thin Mylar film Total weights compensate carrying different fuselage weight 60 lb loads wide variation pilot Ballast tanks fore aft fiber- weights An equilibrator consisting glass can emptied water about several lead weights rope normally minute pilot Easily-attached lead carried bag side fuselage Until new pilot has few flights under belt hung down under airship too-rapid descent becomes docile touch down lengths rope contacting ground progressively light ens craft much-appreciated feature pilots free-flying gas balloons retrievable ballast model airplane motor prop adorn front fuselage belt-drive Astro 40 18-6 prop can turned right left pilot theory used help sharp corners buck headwinds practice has little effect may removed future Instrumentation includes audible va riometer buzz pitches higher go up airspeed indicator bag pressure indicator FM radio ground communication Actually yelling between craft ground makes radio unnecessary airship makes no noise compete yell attachment cords between fuse lage envelope Kevlar surrounded Dacron ultraviolet protection abrasion resistance Reinforced round patches glued gas bag distribute load reality large safety factor having minimum number attachment cords seat belt has backup should come un buckled Inflating bag takes lot gas 16ft diameter bag requires over 20 tanks helium about 6000 cu ft price helium does bother Watsons RC electric-powered blimp named Golden Footballas seen rear Motor attached rudder better direc tional control Rear surfaces fixed front planes controllable Photo Don Monroe Right Bill Watson L adjusts ballast forGalla gher about take flight Gallagher successful TV comedian philosopher wants people take notice Little White Cloud stop polluting air Brian Allen Gossamer Condor Albatross fame calls ship ultimate ultralight trainer 84 Model Aviation $13000 just envelope may start thinking terms smaller model blimp Bill now building smaller livingroom version RC Electric arrived Camarillo Airport first glimpse magnificent airship early morning cant fly wind dead-calm about 7 am 10 am about can day Houston Astrodome can fly anytime top speed around 9 mph cruse 7 mph mercy elements airship temporarily nicknamed White Dwarf pending contest officially name walked out flying spot few hundred feet wide bounded hangars airplanes tether rope some 50 70 ft attached just case gust miscalcula tion should imperil ship left slack blimp would fly its own After couple shakedown flights Bill Watson graciously consented let have go will admit being absolutely fearless right up time about 40 ft off ground discovered incipient acrophobia person going make its presence felt rig Before liftoff bag pressure about two four hundredths pound per square inch checked auto matic valve let out excess pressure gets too great pilot has access normal seldom used pressure release valve No problem Bill Brian adjust water levels ballast tanks make ship about 1 lb heavier its hover ing weight zero After weighing off its time pedal prop pointing upward climb plane lever approximates plane prop rotation know much vectoring giving takes pedalling take effect ship responds thrust rudder changes what seems about 15-sec delay Still cares stopped pedalling took stock what next ship just hung Fantastic Well lets center rudder go pedal harder go faster pedal backwards slowly stop begin backup blades prop adjustable ground new lower-pitch setting used day says Bill gives better speed both directions What view up may slow its sure sitting front TV set two seat belts felt good though balancing narrow fiberglass semirecumbent seat Rudder hard over moving wellabout 6 mph think could get like Quiet except swish-swish-swish prop turning 330 rpm After few circuits Continued page 170 May1985 85 Bill Watson turning blimp kept tethered though flying free just case flying site between hangars parked aircraft tiniest breeze could present significant hazard Watson f lies overhead Note pyramidal water baiiasttanks helium Tillertube wfllch runs down pilot case need release gas Bill Phyllis Warner pics exceptas noted better half Warner team Phyllis flies blimp overhead Easily visible three transmission chains fiberglass pyramids containing water ballast right hand rudder crank rearvlew mirror shows rudder position bag hanging side holds equilibratorrope weights attached along its length can deployed ease landings novices Total fuselage weight about 60 lb Slow Combat model has terrible engine runs youre sure isnt fuel engine suspect tank Ive got hot tip Bob Nicks Triangle Hobbies makes various size tanks becoming standard Slow Combat also sells Eagle Slow Combat foam cores plans assort ed other Combat goodies Write him 1211 Brookgreen Dr Gary NC 27511 call 919 467-6720 several other manufacturers Ill mention later columns Charlie Johnson 3716 graham St San Diego CA 92109 619 273-6530 Geophysical Driskill-Hunton Continued page 78 fuselage add fin stabilizer parts fin should mounted slot Install bellcrank mounting plates Install hardwood dowels engine mount crosspiece bellcrank mounting plate limit bellcrank travel rear wing pin Cut elevator parts shape join Sand elevator smooth airfoil shape Apply light giass cloth center section elevator CyA Install hinge tubes epoxy using filament tape reinforcing Finish fuselage elevator assem blies fuel-proof system Make effort keep nose light since tail weight will probably have added make model balance properly Install bellcrank 0021 leadouts Lead-outs can fished through wing piece wire Install elevator elevator horn Joggle rear end pushrod extra jog fine adjustment Install engine fuel system Cut hardwood stub spars length slide fuselage Pre-fit wings can get carbon-fiber material slide %-in-wide piece over stub spar extend 3 onto main wing spar Use CyA anchoring carbon-fiber wings fuselage carbonfiber material available coat joining surfaces epoxy assemble wings Balance model center gravity approximately / ahead center main spar can make controls responsive adding weight tail moving CG rear ward small increments Geophysical light responsive flying skills rusty building sport-stunt trainer begin CG well forward slower con trol response Combat trim hands experienced flier like Larry Driskill Geophysical awesome Blimp/Warner Continued page 85 course ready come down Pedalling tends tire novice easily mentioned earlier found really too crazy about heights though flying has never bothered least before case thrill never forgotten As morning progressed wide vane ty experienced novice pilots took blimp spin Gallagher Bill Charlie Brian couple other old hands certainly rig well hand could make go exactly wanted Newcomers like wife Phyllis Bills 1 2-year-old nephew George lady ran kindergarten tcok first flights mastered ship loved minute Peripatetic Raindrop name registered ultralight aircraft flying weight 1 lb probably lightest ultralights world According Brian Allen ship . ludicrously easy train someone four times strong anything else Besides says Brian other Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marine K&B FUELSKAB GLOW PLUGS 7 Blends4 c5oices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMERKAB SUPER POXY PAINT K&B MIXING CUPS 170 ModelAviation ML & CRAFT 16th ANNUAL APRIL 27th & 28th LONG BEACH CONVENTION CENTER 300 E OCEAN BLVD LONG BEACH GENERAL ADMISSION ADULTS $400 UNDER 12 $250 / UNDER 6 FREE HOBBY CONTESTS DEMONSTRATIONS EXHIBITIONS Contest Details Local Hobby Shop through Local Club Contact MACS CONTEST DIRECTOR P0 Box 284 Westminster CA 92684 714 891-9559 MACS IS SELLING SHOW New Model Magic Products Model Magic Epoxy Plus 2 Part 8 Mm Use anywhere two part epoxy used 25% lighter Sandable Carveable Excellent Gap Filling Non Sagging Superior Strength Sands Carves Like Basswood II 6 fI oz$895 Equal over 8 wt regular epoxys See dealer firnt Ehen wriRe cBII Model MagIc PudUCtS kc P0 Don 19784 5tu MN 55119 17151425-1397 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak137 158 AMA Membership Academy Av Research & 0ev137 Ace Radio Control139 Airtronics2 Applied Design142 Astro Flight158 Balsa USA15 Blue Ridge Models146 Bru Line Industries5 Byron Originals86-86 CB Associates137 Ca Ra Products139 Carolina-Taffinder138 Johnnie Casburn Mfg143 Champion Model Products146 Chevron165 Circus Hobbies156 168 Cleveland Model & Supply Co161 Eric Clutton164 Consumers Guide47 Coverite1 Curtis Model Aircraft24 D&D Engineering151 DGA Designs161 Davey Systems Corp20 151 Larry Dodge Aero Inc164 Dodgson Designs152 Dougs Hobby Shop166-167 Du-Bro Products Inc4 FAI Model Supply153 FHS Supply Inc12 Flyline Models160 Fourmost Products136 Fox Mfg22 Fun Fly142 Futaba Corp America25 Gator RC Products138 Gemini Models157 Carl Goldberg Models13 147 Golden Gate Hobbies49 Gorham Model Products14 Great Planes Model Mfg Co162 Historic Aviation21 Hobby Barn134-1 35 Hobby Capitol Distributors159 Hobby Horn78 Hobby Lobby International9 Hobbypoxy146 Hobby World Imports170 Holleys Silent Flight151 Howard B Huebi171 Ikon Northwest Co165 Indy RC Sales Inc154-1 55 Jomar Products24 K&BMfgCo170 K&S Engineering148 K W Enterprises153 Knights Air168 Kraft Systems Inc23 Kustom Kraftsmanship147 L&L Model Products165 Lindsey Micro Products165 Lone Star Models45 Lutmi Enterprises164 MACS Products171 Master Kit162 McDaniel RC Service169 Messers Quality Model Prod171 Micro Mark24 162 Micro Model Engineering160 Micro-X-Products151 Model & Craft Show170 Model Magic Products170 Model Rectifier CorpCovers 2 & 3 Morley Helicopters USA157 Mutchiers Hobbies140-141 Nor-Cal Avionics160 North Products146 Ocean State Aeromodel Eng165 Ohio Superstar22 PK Products158 Peck-Polymers162 Penn Valley Hobby Center160 Peripheral Systems Inc149 Pica Products7 Polks Hobby8-9 Proctor Enterprises5 RC Soaring Digest148 Repla-Tech International146 Robbe Modellsport79 RoushMfg161168 SR Batteries148 S&W Hobby Supply150 Sailplanes World150 Satellite City93 Scratch-A-Plane71 Shamrock Competition Imports133 Sheldons Hobby Shop144-1 45 169 Sig Mfg Co5 ii Simplex Miniature Engines159 Southeastern Air Craft ers153 St Croix Park Falls156 Stan dale Aircraft152 Sterling Models47 Swanson Associates150 TG Mfg164 Tatone Products Co20 Tidewater Eng & Machine Co136 Top Flite Models Inc157 Tower Hobbies163 US Eagle138 VK Model Aircraft139 VL Products78 Videotech146 WE Technical Services6 Williams Brothers159 Wilshire Model Center14 Windsor Propeller Co156 World EnginesCover 4 Zenith Aviation Publications37 Nick Ziroli Models12 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX human-powered craft can flown doors Ihe possibilities model humanpowered blimps Gallagher has ased RC model looked like watermelon TV show Peck-Poly ners has quite inexpensive blimp being told more promotional stunts several countries interested military purposes Aside its eye-catching advantages advertising human-powered might set upto give rides maybe selling Polaroid shot videotape customer afterwards might have human-powered blimp race event next Olympics cant afford big ones though remember got started rubber-powered models Secrets None really Just add weight until model just hovers add just atadto bring down power runs out prop lower gas bag airship will climb naturally thrust continually pushing up nose positive angle attack Good year blimp works way vectored thrust icing cake want go RCContinued page 172 IN sTocK FOR IMMEDIATE SHIPMENT NEW RA 508$19995 New Onadra 36 col$10995 Reg Qoedre 39 $9996 Brisighella $Iywhml$11995 Reg Onadra 36 Power Aosesbly Only$6450 QUADRA REPAIR$1000 pins parts Jin Messer ERcOUPEPlANS $2396 KIT $23996 Jin Mesner TOMAHAWKPLANS $2396 KIT $36996 Jin Meson 9-BALL TRAINERPLANS $1996 KIT $19996 BALSA end BASSWOOD 111 sitesSig pioen lens 19% New ZENOAH 0-23 $13696ZENOAH 0-36 $ 9996 FLOATS 30116 noelonren $1796onnoplete kit $3996 FLOATS 49114 no1 cores $2196contpleoe kit $4796 10 WWI WHEELS 3696 PieW cyiS FLEETS$3696 PLANS SUPER STEARMAN 114 Godfrey$3996 STARDUSTER TOO 1I4Bringhelle 13 J3 CUB Nelit$2996 VOLKSPLANE 113 Chicken Cherlie$2396 COCKPIT KITS Tontahnwk F4U-1 Spitfire ME109$2396 Ernoope Fleet J3 Cob POE P47 C Eagle$2196 Cloak $2496 Zero $2696 Zero exteror$1096 US Onedra FUEL TANKS16 o $69623 n $796 FIBERGLASSARROWSHAFTS6/16o23long0l$1OO0 24-Hour Service. Add 5250 p stage Send flank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS valley view Dr. Boo 43 Allegany NY 14706 PRODUCTS FflA ThP ntcrpmuius MfliWi CE Complete Line Exhaust Systems d Pipes Muffled Tuned Pines Headers Venturi Mufflers Expansion Mufflers * Helicopter PRECISION BALANCE ALLBall Mufflers Specialized Exhaust Heres ho equipment need gwe prop 0iy best Systems balance-balance directions Carefidly crafted top grade Linsurpassad Workinan-ehin fonnaace materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Dlher sizes avadable special order [alers muted $1795 Add$ISOfen HOWARD B HUERL DEFT ODS pentege beadleg le Mis 6% ealee Pun lie C0Da Boo 92 Rt S Mankato MN 56001 May1985 171 FULL SIZE PLANS No 473 No 474 No 475 Tucano$1250 RC Sport Sosie spans 66 uses 60-75 engines Three sheets Pacer 15$500 FF 1983 FAI Class Fl World Champion Towline Glider Geophysical$400 CL Slow Combat model uses geodetic wing construction Two sheets $375 lb 133Stte CL Stunt mmlel McOnnab winnerl976 19801982 PAl Wend Cp$ Ne 281lb lkdn AC Ken Willards immatlon plane 4-channel 1 0-pnwer$125 lb 252Cmubmastho CL Crash jo-oct trainer two sizesl 5-30- 35-40-power .. lb 233See B IL pentsbe AC /4-scala hy Ilaflke tsr 91 power Prototype span 30 ft Two-and-a-half sheets$1175 Ne 362F1S AC Sarpolas 049 dected fan sport ttierfor2-channel Balsa wings tall hise structure$ 275 Na 3161330 Fleet 3bae AC SportScale 35-40 4-channel Wingspan 56 inscale Two sheets $ 625 Ne 314Drake t AC Ken willards flying beat 3-channel 1 5-power Fly front land removable gear$ 375 Ne 328Taller Cab AC Don Sruts Schoolyard-Scala br 049s 2-3 channel Spans 50 in$ 350 Ne 332 Zapbym AC Small 2-channel glider tsr hand-lasoch tow thermaL slope soaring $ 200 Ne 358 Pbceo FF Indoor Easy B Aubber-power contest-winner hy W Van Corder $100 Ne 383ClEats S2 AC Fly lIds sleek Nets winiting Sailplane AMA Mod Std Unlhnited classes$750 Ne 386Laser 200 AC Sport Scale repOca championship Aerohatic Bler Uses 40 power 4-5 channel Two sheets-$1075 Ne 318Sm Sm 81 AC flaflkes latest /4-scale spans iSis weighs 15 0, flIes 90 ar larger Foar sheets doc$2225 Ne 414BleabIc Spenky AC electric-powered fun tiler lorDS motor 3-channel AC scaled epi 939 robber-power lavoille$850 Ne 4226eetsr AC Two-Meter Sailplane has won Nats event 101982 1983 plea other contests- $550 Ne 423dud Cnisec AC Old-Timer takes 60-power 3-channel AC Two-pace wing optman tar easy transport Two sheets$1275 Ne 424Seed lent FF Emlays Enderasce robber-power fboalpiane has optional wheels stlck-and-tissan delight$ 200 Ne 426Clba Clppu AC Fabulous 74-in-span Sport Scale Ilying boat leer 1 B-size engines 4-channel Three sheets no don$2000 Ne 428Over E-Z CL Old-Timer Stunt biplane has praBle fuselage uses 25 engine$ 400 Ne438keeaMeRCZippyllttlesportsterlOiI0-lsPoweraOd3-channelAC -$ 400 Ne 431Lbheed P-35 AC Fao-scale twio-1 5-f lmr 4-channels Two sheets$1 300 Ne 432Fkeeaia CL Updated Thanderbird-style Stunter Ito- 35-40 engines -$ 575 lIe 433Wafba Up AC Electric-powered gilder tsr 2-3 channels 035 motor spans 52 in$ 450 Ne 435ThIn N AC Aerohatic biplane 40 engines 4-chasnels Great sport Ilyl$ 650 Ne 437KIqIsluc CL Profile Cantor plane spans 40/z in. noes 35 engIne$ 600 Ne 435Ciuleer FF Embryo Endurance robber-power tan slap has big-model characterlstlcs$ 200 Ne 433Deapenaic AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 Ne 440 Cavalec AC Old-Timer-like new design has hnge wing slow easy Bights 35 power 3 channels Two sheets $1 725 lb U1E WIt FF Hot small lightweight cmnpotitlso ship tsr 15 power designer Harry Murphy $ 475 Ne 442 Lang Ouch AC Big canard sport fter /nA-09 power 2 channels Uses loam board parts $ 650 Ne 444 Fbeldt AC pusher canard spartlpattem sam 40 pusher engine 4-channel Has swept-forward loam wings $ 650 Ne 445 Nesaitl Ceegac CL Scala model popular homehuilt won Nuts Uses 21 engine spans 41 in $ 925 Ne 445 La Crab AC Electric-powered sport flIer 05 motors 3-channels Two veraisos parasol cabin $ 550 Ne 447 YeA faa Amutol AC Old-Timer /sA Texaco model 049 glow 2-channels 50 Ne 443 SeAm CL SportlSlont plane 40-size 4-stroke engine builds last easy . $ 600 Ne 451 B llpbee 5ei ftC Aedesigo sleek 1937 FF biplane tsr 3-4 channels 29-40 power Two sheets $1175 lb 452 Bee Sm Z AC Osarter-scale spans 71 ses 90 power Foor sheets $1 600 $ 550 lb 453 Smeeflde meSa CL Prsfilo rendition 01 Bob Palmers supor-Stunter 01 early Fitties tsr 35 power $ 2011 lb 454Sweet P-30 FF Neat stich-and-tissue Ouldoor Aubber P-3D-class model isa coolest-winner Ne 458HfTeeh 2851 AC Dacted-tan lotaristic-leoking canard 25-size engines Built-up construction Three sheets$1175 Ne 457Speoha AC Electric-power 05-size motor uses 3 different wings sport soaring aerobatics$ 700 lb 458Beenllena CL Profile Canter 1 5-power events Two sheets$ 575 lb 453Sky renault FF Aebber-power old-timer designed Joc Ott 1932$ 300 Na 450440 AC Shoulder-wing spud Bier 4-cycle 40-size engine 4 channels$ 650 lb 461Tifabo Sanoateneec CL Famous untlapped Stunter late Farties Uses 35 engine$ 650 Ne 462Paula PE FF Jumbo Aubber Scale 01 WW taken observation plane$ 400 $ 475 lb 463Pletylmehletbea Vt AC mA Pylon racer uses lots ito ply built-up struclore tar strength lightness$ 325 lb 454Suedaecem CL bA sport flier all-sheet-balsa can use Tee Dee 049 lb 455Wee Mast AC Fuo-fly sportster 40-size engines spans 52 Lightweight strectare$ 700 lb 456CeuepeNfer CLStanterfor 60 power has 850 sq wing urea$ 575 Na 467Aloe Spent FF Aubber Scale desigo won 63 Nuts tar designer Don Srall Wingspan 2610$ 250 Ne 468Smeethe CL Stunter 29135 power Design bused hybrid SmoothielNebler$ 675 lb 463Sm Ktohet AC Sport Scale rendering Polish hmneboitl pusher Spans 75 uses 40-size 4-cycle engion Four sheets$2075 lb 470Slreher AC Mld-wlng sportster uses 40145 four-stroke engine spans 50/o tail-dragger$ 650 $ 575 lb 471Negas Aetaa CL Profile Stunt trainer spans 54 uses 35140 engine Flapped wing$ 550 lb 472Peracraft AC Craft has flesible paroled wing uses 3 AC channels 60 engine. 0 us n cJ 0t C 60 Zus 030 c us - 0 V us c0- 0 usus CV mm V o-t us 0 us V 0us 0 0us 0us c Ous ea 03 uC 03 STATE II Circle numbers plans wish order 193 326 422 432 441 451 459 466 473 239 332 423 433 442 452 460 467 474 262 358 424 435 444 453 461 468 475 299 383 426 437 445 454 462 469 302 386 429 438 446 456 463 470 Plan pnlce lacledes first class pinup tt US delvery wMch Alt MaE over 300 laNes l stun gutsMs fits US. please add $250 Air Mail $1 25 surface mail 310 398 430 439 447 457 464 471 314 414 431 440 449 458 465 472 0 Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Or, 1165100 VA 22090 Please allow 3 6 weeks delivery Please print carefullyEnclosed $__________________________________ NAME STREET CITY ZIP Happy flying stay out cactus Editor March 1981 Model viadon contained two excellent articles RC model airships Slow Year Blimp Lou Bruhn Summer Breeze Balloon Luther Hux Elec Floatplanes/PoIing Continued page 92 pieces area behind step should go first large piece area front step Allow generous overlap between two Cover top last Accept inevitable wrinides float curved hard get away few cant seen air anyway water rudder handy steering especially after landing have - get plane back shore breeze have taxi crosswind downwind can almost impossible water rudder can have enough power get plane step air rudder effective Personal ly have bad habit flying long can have enough power idle back displacement mode displace ment mode air rudder doesnt much short power blasts will help mentioned dont land enough power left use 3 sq water rudder 590 sq plane can scale other sizes using ratio wing rudder area water rudder attached directly air rudder simplicity Look closely photo can see rudder made music wire bent rectangular U plastic sheet surface taped together clear package wrap ping tape available stationety stores Part music wire left vertical stub matching stub attached rudder wheel collar joins wheel collar wonderful allows both side-to-side vertical adjustment rudder rudder should adjusted vertically top just out water plane sitting water no power Under power plane rocks back floats rudder well underwaterbut step rudder completely out water no drag Clever did water rudder years because drag severe enough prevent taking off finally simple system popped mind Now have benefits problems Another potential problem effect water rudder drag rudder hinges can severe provide tube rudder stub go through attached fuselage relieve drag pressure Enough now Next month will get final setup tips techniques - water flying Get plane ready continued 172 ModelAviation
Edition: Model Aviation - 1985/05
Page Numbers: 80, 81, 82, 83, 84, 85, 170, 171, 172
NO OCR TEXT NO OCR TEXT balloon envelope putting gon dola made material Styrofoam egg carton directly balloon vinyl electricians tape motor stick balsa business end power supply balsa stick aluminum tube bearing prop kids made stack balsa laminations fanned out glued sanded pinch wed use heavier plastic prop fins cut construction paper stuck Magic Mending Tape About 2-ft loop 1/16-in rubber would give flights lasting 2 min aroom 12-ft ceiling blimps bounce off walls few years later Bill Watson making Radio Control blimps some sophistication sight behold Pasadena IM Show dozen-footlong Golden Football used 48 cubic feet helium welcome relief flam mable hydrogen provide lift Helium lifts little less hydrogen whole lot safer Too bad Hinden burg designed bags helium sur rounding hydrogen cores wasnt able get last resort used hydrogren way almost way disastrous consequences know well Helium lifts little less 1 oz per cu ft quite bit can hot air fuselage Golden Football suspended about foot beneath shining eight-gore DuPont Kapton Key lar film bag electric motor Astro 02 rigged rudder-aided directional control Longitudinal control stability came fixed stabilizer rear movable like diving planes submarine front carried 5 oz water ballast motor could con trolled give reverse flight Try winged RC airplane nice feature design release mechan ism dropping things like small hang gliders altitude Bills rcent RC blimp drops things too much smaller practical small gyms carries 17 cu ft helium its aluminized Mylar bag oovering Saran-coated seals easily heat Bill says doesnt know can get though high-tech mate rials came him via team built famous Gossamer Albatross Gossa mer Condor Bill apart both projects knows about super-light oon struction almost anyone know entire aluminized blimp 6 ft long has 3 oz material gas bag two-gore designsimple make having lots wrinkles critical fly 3 mph three-channel radio operates motor speed power motor like type used servos thrust vectoring up down rudder rudder tied gimballed motor mount applying rudder moves motor thrust sideways give turns proverbial dime up down control provides range thrust straight up straight down maneuverable 82 Model Aviation van delivered cylinder helium top off airship hazards ot buy ing pig poke tank proved empty Water ballast added front tank ship will weigh about pound individual pilot before being flown Watsons latest RC blimp Indoor flying equipped drop PF hang glider up nearthe ceiling Electric motor power swivels directions altitude turn control miunareds kids have made model blimps like authors classes over last 15 yearsmainly due Bill Watsons inspiration assistance rubber-powered model guaranteed fly crash just means bouncing off wall Styrofoam gondola often pressed illto service retrieve Peanut Scale microfilm-covered ships overhead lights Paul Revere Junior High School Indoor meets Long interested human power Bill helping build Paul Mac Cready Gossamers also hang gliders bicycles speed record attempts Ontario Raceway shells racing bicycles inventiveness eventually brought him contact top people human-powered vehicles also got him building unusual stuff movies Radio Control ptero dactyl movie War Games contact changed life meeting popular comedian Gallagher Gallagher run-of-the-mill comic highly-imaginative creative phil osopher love humanity na ture drives him some pretty zany demonstrations idea non-pollut ing little cloud could pedalled about process provide vehicle getting people look skyward think about what doing air born Bill given carte blanche make though copythe golden age blimp having peaked some 75 years earlier Drawing model experience Bill did basic design workkicking around ideas Blame Rawdon Bart Hibbs provided invaluable assistance stress analysis configuration com puter-designing prop ala Larrabee know about computerdesigned props An order placed Raven firm makes types hot-air gas-filled envelopes tear drop-shaped envelope ripstop nylon urethane coating made 16 gores gores less wrinldes fewer wrinides less drag finished bag 47 ft long weighs neighborhood 60 lb Brian Allen pilot power plant great Gossamer ffights incidentally winner prize money pilot history doing Charlie Sink graduates Aeroplanes Flying Machines class called work Bill fuselage Built 2024 T-3 aluminum alloy tubing 7075-0 gussets fuselage tremen dously strong gussets pressureformed dies Bill made poprivets fasten tubes Warren-truss configuration prop has spruce spar main blades made Styrofoam prop driven pedal crank standard bicycle chain connec ted two plastic-cable chains sort used Gossamers lever pilots left controls vectoring propeller thrust up downnot much RC blimp enough make difference between climb descent small crank pilots right controls rudder position monitored small rear-view mirror rudder itself features Styro foam rib cores spruce cap strips May1985 83 F- NW Back 19605 Bill Watson introduced kids lighter-than-air flying models Aero planes Plying Machines class summer science workshops California Museum Science industry Los Angeles Now hes made person-powered Bill Watsons rubber-powered blimps early 1970s Bag made two gores drycleaners bag Flightsof several mlnuteswere possible undera ratheriowceiling Bill Watson rides airship walked its flying site Camarillo Airport Hes riding because ship needs bailast novice can fly after brief Instruction period double-covered thin Mylar film Total weights compensate carrying different fuselage weight 60 lb loads wide variation pilot Ballast tanks fore aft fiber- weights An equilibrator consisting glass can emptied water about several lead weights rope normally minute pilot Easily-attached lead carried bag side fuselage Until new pilot has few flights under belt hung down under airship too-rapid descent becomes docile touch down lengths rope contacting ground progressively light ens craft much-appreciated feature pilots free-flying gas balloons retrievable ballast model airplane motor prop adorn front fuselage belt-drive Astro 40 18-6 prop can turned right left pilot theory used help sharp corners buck headwinds practice has little effect may removed future Instrumentation includes audible va riometer buzz pitches higher go up airspeed indicator bag pressure indicator FM radio ground communication Actually yelling between craft ground makes radio unnecessary airship makes no noise compete yell attachment cords between fuse lage envelope Kevlar surrounded Dacron ultraviolet protection abrasion resistance Reinforced round patches glued gas bag distribute load reality large safety factor having minimum number attachment cords seat belt has backup should come un buckled Inflating bag takes lot gas 16ft diameter bag requires over 20 tanks helium about 6000 cu ft price helium does bother Watsons RC electric-powered blimp named Golden Footballas seen rear Motor attached rudder better direc tional control Rear surfaces fixed front planes controllable Photo Don Monroe Right Bill Watson L adjusts ballast forGalla gher about take flight Gallagher successful TV comedian philosopher wants people take notice Little White Cloud stop polluting air Brian Allen Gossamer Condor Albatross fame calls ship ultimate ultralight trainer 84 Model Aviation $13000 just envelope may start thinking terms smaller model blimp Bill now building smaller livingroom version RC Electric arrived Camarillo Airport first glimpse magnificent airship early morning cant fly wind dead-calm about 7 am 10 am about can day Houston Astrodome can fly anytime top speed around 9 mph cruse 7 mph mercy elements airship temporarily nicknamed White Dwarf pending contest officially name walked out flying spot few hundred feet wide bounded hangars airplanes tether rope some 50 70 ft attached just case gust miscalcula tion should imperil ship left slack blimp would fly its own After couple shakedown flights Bill Watson graciously consented let have go will admit being absolutely fearless right up time about 40 ft off ground discovered incipient acrophobia person going make its presence felt rig Before liftoff bag pressure about two four hundredths pound per square inch checked auto matic valve let out excess pressure gets too great pilot has access normal seldom used pressure release valve No problem Bill Brian adjust water levels ballast tanks make ship about 1 lb heavier its hover ing weight zero After weighing off its time pedal prop pointing upward climb plane lever approximates plane prop rotation know much vectoring giving takes pedalling take effect ship responds thrust rudder changes what seems about 15-sec delay Still cares stopped pedalling took stock what next ship just hung Fantastic Well lets center rudder go pedal harder go faster pedal backwards slowly stop begin backup blades prop adjustable ground new lower-pitch setting used day says Bill gives better speed both directions What view up may slow its sure sitting front TV set two seat belts felt good though balancing narrow fiberglass semirecumbent seat Rudder hard over moving wellabout 6 mph think could get like Quiet except swish-swish-swish prop turning 330 rpm After few circuits Continued page 170 May1985 85 Bill Watson turning blimp kept tethered though flying free just case flying site between hangars parked aircraft tiniest breeze could present significant hazard Watson f lies overhead Note pyramidal water baiiasttanks helium Tillertube wfllch runs down pilot case need release gas Bill Phyllis Warner pics exceptas noted better half Warner team Phyllis flies blimp overhead Easily visible three transmission chains fiberglass pyramids containing water ballast right hand rudder crank rearvlew mirror shows rudder position bag hanging side holds equilibratorrope weights attached along its length can deployed ease landings novices Total fuselage weight about 60 lb Slow Combat model has terrible engine runs youre sure isnt fuel engine suspect tank Ive got hot tip Bob Nicks Triangle Hobbies makes various size tanks becoming standard Slow Combat also sells Eagle Slow Combat foam cores plans assort ed other Combat goodies Write him 1211 Brookgreen Dr Gary NC 27511 call 919 467-6720 several other manufacturers Ill mention later columns Charlie Johnson 3716 graham St San Diego CA 92109 619 273-6530 Geophysical Driskill-Hunton Continued page 78 fuselage add fin stabilizer parts fin should mounted slot Install bellcrank mounting plates Install hardwood dowels engine mount crosspiece bellcrank mounting plate limit bellcrank travel rear wing pin Cut elevator parts shape join Sand elevator smooth airfoil shape Apply light giass cloth center section elevator CyA Install hinge tubes epoxy using filament tape reinforcing Finish fuselage elevator assem blies fuel-proof system Make effort keep nose light since tail weight will probably have added make model balance properly Install bellcrank 0021 leadouts Lead-outs can fished through wing piece wire Install elevator elevator horn Joggle rear end pushrod extra jog fine adjustment Install engine fuel system Cut hardwood stub spars length slide fuselage Pre-fit wings can get carbon-fiber material slide %-in-wide piece over stub spar extend 3 onto main wing spar Use CyA anchoring carbon-fiber wings fuselage carbonfiber material available coat joining surfaces epoxy assemble wings Balance model center gravity approximately / ahead center main spar can make controls responsive adding weight tail moving CG rear ward small increments Geophysical light responsive flying skills rusty building sport-stunt trainer begin CG well forward slower con trol response Combat trim hands experienced flier like Larry Driskill Geophysical awesome Blimp/Warner Continued page 85 course ready come down Pedalling tends tire novice easily mentioned earlier found really too crazy about heights though flying has never bothered least before case thrill never forgotten As morning progressed wide vane ty experienced novice pilots took blimp spin Gallagher Bill Charlie Brian couple other old hands certainly rig well hand could make go exactly wanted Newcomers like wife Phyllis Bills 1 2-year-old nephew George lady ran kindergarten tcok first flights mastered ship loved minute Peripatetic Raindrop name registered ultralight aircraft flying weight 1 lb probably lightest ultralights world According Brian Allen ship . ludicrously easy train someone four times strong anything else Besides says Brian other Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplane 4 Marine K&B FUELSKAB GLOW PLUGS 7 Blends4 c5oices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER POXY THINNER K&B SUPER POXY PRIMERKAB SUPER POXY PAINT K&B MIXING CUPS 170 ModelAviation ML & CRAFT 16th ANNUAL APRIL 27th & 28th LONG BEACH CONVENTION CENTER 300 E OCEAN BLVD LONG BEACH GENERAL ADMISSION ADULTS $400 UNDER 12 $250 / UNDER 6 FREE HOBBY CONTESTS DEMONSTRATIONS EXHIBITIONS Contest Details Local Hobby Shop through Local Club Contact MACS CONTEST DIRECTOR P0 Box 284 Westminster CA 92684 714 891-9559 MACS IS SELLING SHOW New Model Magic Products Model Magic Epoxy Plus 2 Part 8 Mm Use anywhere two part epoxy used 25% lighter Sandable Carveable Excellent Gap Filling Non Sagging Superior Strength Sands Carves Like Basswood II 6 fI oz$895 Equal over 8 wt regular epoxys See dealer firnt Ehen wriRe cBII Model MagIc PudUCtS kc P0 Don 19784 5tu MN 55119 17151425-1397 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak137 158 AMA Membership Academy Av Research & 0ev137 Ace Radio Control139 Airtronics2 Applied Design142 Astro Flight158 Balsa USA15 Blue Ridge Models146 Bru Line Industries5 Byron Originals86-86 CB Associates137 Ca Ra Products139 Carolina-Taffinder138 Johnnie Casburn Mfg143 Champion Model Products146 Chevron165 Circus Hobbies156 168 Cleveland Model & Supply Co161 Eric Clutton164 Consumers Guide47 Coverite1 Curtis Model Aircraft24 D&D Engineering151 DGA Designs161 Davey Systems Corp20 151 Larry Dodge Aero Inc164 Dodgson Designs152 Dougs Hobby Shop166-167 Du-Bro Products Inc4 FAI Model Supply153 FHS Supply Inc12 Flyline Models160 Fourmost Products136 Fox Mfg22 Fun Fly142 Futaba Corp America25 Gator RC Products138 Gemini Models157 Carl Goldberg Models13 147 Golden Gate Hobbies49 Gorham Model Products14 Great Planes Model Mfg Co162 Historic Aviation21 Hobby Barn134-1 35 Hobby Capitol Distributors159 Hobby Horn78 Hobby Lobby International9 Hobbypoxy146 Hobby World Imports170 Holleys Silent Flight151 Howard B Huebi171 Ikon Northwest Co165 Indy RC Sales Inc154-1 55 Jomar Products24 K&BMfgCo170 K&S Engineering148 K W Enterprises153 Knights Air168 Kraft Systems Inc23 Kustom Kraftsmanship147 L&L Model Products165 Lindsey Micro Products165 Lone Star Models45 Lutmi Enterprises164 MACS Products171 Master Kit162 McDaniel RC Service169 Messers Quality Model Prod171 Micro Mark24 162 Micro Model Engineering160 Micro-X-Products151 Model & Craft Show170 Model Magic Products170 Model Rectifier CorpCovers 2 & 3 Morley Helicopters USA157 Mutchiers Hobbies140-141 Nor-Cal Avionics160 North Products146 Ocean State Aeromodel Eng165 Ohio Superstar22 PK Products158 Peck-Polymers162 Penn Valley Hobby Center160 Peripheral Systems Inc149 Pica Products7 Polks Hobby8-9 Proctor Enterprises5 RC Soaring Digest148 Repla-Tech International146 Robbe Modellsport79 RoushMfg161168 SR Batteries148 S&W Hobby Supply150 Sailplanes World150 Satellite City93 Scratch-A-Plane71 Shamrock Competition Imports133 Sheldons Hobby Shop144-1 45 169 Sig Mfg Co5 ii Simplex Miniature Engines159 Southeastern Air Craft ers153 St Croix Park Falls156 Stan dale Aircraft152 Sterling Models47 Swanson Associates150 TG Mfg164 Tatone Products Co20 Tidewater Eng & Machine Co136 Top Flite Models Inc157 Tower Hobbies163 US Eagle138 VK Model Aircraft139 VL Products78 Videotech146 WE Technical Services6 Williams Brothers159 Wilshire Model Center14 Windsor Propeller Co156 World EnginesCover 4 Zenith Aviation Publications37 Nick Ziroli Models12 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX human-powered craft can flown doors Ihe possibilities model humanpowered blimps Gallagher has ased RC model looked like watermelon TV show Peck-Poly ners has quite inexpensive blimp being told more promotional stunts several countries interested military purposes Aside its eye-catching advantages advertising human-powered might set upto give rides maybe selling Polaroid shot videotape customer afterwards might have human-powered blimp race event next Olympics cant afford big ones though remember got started rubber-powered models Secrets None really Just add weight until model just hovers add just atadto bring down power runs out prop lower gas bag airship will climb naturally thrust continually pushing up nose positive angle attack Good year blimp works way vectored thrust icing cake want go RCContinued page 172 IN sTocK FOR IMMEDIATE SHIPMENT NEW RA 508$19995 New Onadra 36 col$10995 Reg Qoedre 39 $9996 Brisighella $Iywhml$11995 Reg Onadra 36 Power Aosesbly Only$6450 QUADRA REPAIR$1000 pins parts Jin Messer ERcOUPEPlANS $2396 KIT $23996 Jin Mesner TOMAHAWKPLANS $2396 KIT $36996 Jin Meson 9-BALL TRAINERPLANS $1996 KIT $19996 BALSA end BASSWOOD 111 sitesSig pioen lens 19% New ZENOAH 0-23 $13696ZENOAH 0-36 $ 9996 FLOATS 30116 noelonren $1796onnoplete kit $3996 FLOATS 49114 no1 cores $2196contpleoe kit $4796 10 WWI WHEELS 3696 PieW cyiS FLEETS$3696 PLANS SUPER STEARMAN 114 Godfrey$3996 STARDUSTER TOO 1I4Bringhelle 13 J3 CUB Nelit$2996 VOLKSPLANE 113 Chicken Cherlie$2396 COCKPIT KITS Tontahnwk F4U-1 Spitfire ME109$2396 Ernoope Fleet J3 Cob POE P47 C Eagle$2196 Cloak $2496 Zero $2696 Zero exteror$1096 US Onedra FUEL TANKS16 o $69623 n $796 FIBERGLASSARROWSHAFTS6/16o23long0l$1OO0 24-Hour Service. Add 5250 p stage Send flank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS valley view Dr. Boo 43 Allegany NY 14706 PRODUCTS FflA ThP ntcrpmuius MfliWi CE Complete Line Exhaust Systems d Pipes Muffled Tuned Pines Headers Venturi Mufflers Expansion Mufflers * Helicopter PRECISION BALANCE ALLBall Mufflers Specialized Exhaust Heres ho equipment need gwe prop 0iy best Systems balance-balance directions Carefidly crafted top grade Linsurpassad Workinan-ehin fonnaace materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Dlher sizes avadable special order [alers muted $1795 Add$ISOfen HOWARD B HUERL DEFT ODS pentege beadleg le Mis 6% ealee Pun lie C0Da Boo 92 Rt S Mankato MN 56001 May1985 171 FULL SIZE PLANS No 473 No 474 No 475 Tucano$1250 RC Sport Sosie spans 66 uses 60-75 engines Three sheets Pacer 15$500 FF 1983 FAI Class Fl World Champion Towline Glider Geophysical$400 CL Slow Combat model uses geodetic wing construction Two sheets $375 lb 133Stte CL Stunt mmlel McOnnab winnerl976 19801982 PAl Wend Cp$ Ne 281lb lkdn AC Ken Willards immatlon plane 4-channel 1 0-pnwer$125 lb 252Cmubmastho CL Crash jo-oct trainer two sizesl 5-30- 35-40-power .. lb 233See B IL pentsbe AC /4-scala hy Ilaflke tsr 91 power Prototype span 30 ft Two-and-a-half sheets$1175 Ne 362F1S AC Sarpolas 049 dected fan sport ttierfor2-channel Balsa wings tall hise structure$ 275 Na 3161330 Fleet 3bae AC SportScale 35-40 4-channel Wingspan 56 inscale Two sheets $ 625 Ne 314Drake t AC Ken willards flying beat 3-channel 1 5-power Fly front land removable gear$ 375 Ne 328Taller Cab AC Don Sruts Schoolyard-Scala br 049s 2-3 channel Spans 50 in$ 350 Ne 332 Zapbym AC Small 2-channel glider tsr hand-lasoch tow thermaL slope soaring $ 200 Ne 358 Pbceo FF Indoor Easy B Aubber-power contest-winner hy W Van Corder $100 Ne 383ClEats S2 AC Fly lIds sleek Nets winiting Sailplane AMA Mod Std Unlhnited classes$750 Ne 386Laser 200 AC Sport Scale repOca championship Aerohatic Bler Uses 40 power 4-5 channel Two sheets-$1075 Ne 318Sm Sm 81 AC flaflkes latest /4-scale spans iSis weighs 15 0, flIes 90 ar larger Foar sheets doc$2225 Ne 414BleabIc Spenky AC electric-powered fun tiler lorDS motor 3-channel AC scaled epi 939 robber-power lavoille$850 Ne 4226eetsr AC Two-Meter Sailplane has won Nats event 101982 1983 plea other contests- $550 Ne 423dud Cnisec AC Old-Timer takes 60-power 3-channel AC Two-pace wing optman tar easy transport Two sheets$1275 Ne 424Seed lent FF Emlays Enderasce robber-power fboalpiane has optional wheels stlck-and-tissan delight$ 200 Ne 426Clba Clppu AC Fabulous 74-in-span Sport Scale Ilying boat leer 1 B-size engines 4-channel Three sheets no don$2000 Ne 428Over E-Z CL Old-Timer Stunt biplane has praBle fuselage uses 25 engine$ 400 Ne438keeaMeRCZippyllttlesportsterlOiI0-lsPoweraOd3-channelAC -$ 400 Ne 431Lbheed P-35 AC Fao-scale twio-1 5-f lmr 4-channels Two sheets$1 300 Ne 432Fkeeaia CL Updated Thanderbird-style Stunter Ito- 35-40 engines -$ 575 lIe 433Wafba Up AC Electric-powered gilder tsr 2-3 channels 035 motor spans 52 in$ 450 Ne 435ThIn N AC Aerohatic biplane 40 engines 4-chasnels Great sport Ilyl$ 650 Ne 437KIqIsluc CL Profile Cantor plane spans 40/z in. noes 35 engIne$ 600 Ne 435Ciuleer FF Embryo Endurance robber-power tan slap has big-model characterlstlcs$ 200 Ne 433Deapenaic AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 Ne 440 Cavalec AC Old-Timer-like new design has hnge wing slow easy Bights 35 power 3 channels Two sheets $1 725 lb U1E WIt FF Hot small lightweight cmnpotitlso ship tsr 15 power designer Harry Murphy $ 475 Ne 442 Lang Ouch AC Big canard sport fter /nA-09 power 2 channels Uses loam board parts $ 650 Ne 444 Fbeldt AC pusher canard spartlpattem sam 40 pusher engine 4-channel Has swept-forward loam wings $ 650 Ne 445 Nesaitl Ceegac CL Scala model popular homehuilt won Nuts Uses 21 engine spans 41 in $ 925 Ne 445 La Crab AC Electric-powered sport flIer 05 motors 3-channels Two veraisos parasol cabin $ 550 Ne 447 YeA faa Amutol AC Old-Timer /sA Texaco model 049 glow 2-channels 50 Ne 443 SeAm CL SportlSlont plane 40-size 4-stroke engine builds last easy . $ 600 Ne 451 B llpbee 5ei ftC Aedesigo sleek 1937 FF biplane tsr 3-4 channels 29-40 power Two sheets $1175 lb 452 Bee Sm Z AC Osarter-scale spans 71 ses 90 power Foor sheets $1 600 $ 550 lb 453 Smeeflde meSa CL Prsfilo rendition 01 Bob Palmers supor-Stunter 01 early Fitties tsr 35 power $ 2011 lb 454Sweet P-30 FF Neat stich-and-tissue Ouldoor Aubber P-3D-class model isa coolest-winner Ne 458HfTeeh 2851 AC Dacted-tan lotaristic-leoking canard 25-size engines Built-up construction Three sheets$1175 Ne 457Speoha AC Electric-power 05-size motor uses 3 different wings sport soaring aerobatics$ 700 lb 458Beenllena CL Profile Canter 1 5-power events Two sheets$ 575 lb 453Sky renault FF Aebber-power old-timer designed Joc Ott 1932$ 300 Na 450440 AC Shoulder-wing spud Bier 4-cycle 40-size engine 4 channels$ 650 lb 461Tifabo Sanoateneec CL Famous untlapped Stunter late Farties Uses 35 engine$ 650 Ne 462Paula PE FF Jumbo Aubber Scale 01 WW taken observation plane$ 400 $ 475 lb 463Pletylmehletbea Vt AC mA Pylon racer uses lots ito ply built-up struclore tar strength lightness$ 325 lb 454Suedaecem CL bA sport flier all-sheet-balsa can use Tee Dee 049 lb 455Wee Mast AC Fuo-fly sportster 40-size engines spans 52 Lightweight strectare$ 700 lb 456CeuepeNfer CLStanterfor 60 power has 850 sq wing urea$ 575 Na 467Aloe Spent FF Aubber Scale desigo won 63 Nuts tar designer Don Srall Wingspan 2610$ 250 Ne 468Smeethe CL Stunter 29135 power Design bused hybrid SmoothielNebler$ 675 lb 463Sm Ktohet AC Sport Scale rendering Polish hmneboitl pusher Spans 75 uses 40-size 4-cycle engion Four sheets$2075 lb 470Slreher AC Mld-wlng sportster uses 40145 four-stroke engine spans 50/o tail-dragger$ 650 $ 575 lb 471Negas Aetaa CL Profile Stunt trainer spans 54 uses 35140 engine Flapped wing$ 550 lb 472Peracraft AC Craft has flesible paroled wing uses 3 AC channels 60 engine. 0 us n cJ 0t C 60 Zus 030 c us - 0 V us c0- 0 usus CV mm V o-t us 0 us V 0us 0 0us 0us c Ous ea 03 uC 03 STATE II Circle numbers plans wish order 193 326 422 432 441 451 459 466 473 239 332 423 433 442 452 460 467 474 262 358 424 435 444 453 461 468 475 299 383 426 437 445 454 462 469 302 386 429 438 446 456 463 470 Plan pnlce lacledes first class pinup tt US delvery wMch Alt MaE over 300 laNes l stun gutsMs fits US. please add $250 Air Mail $1 25 surface mail 310 398 430 439 447 457 464 471 314 414 431 440 449 458 465 472 0 Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Or, 1165100 VA 22090 Please allow 3 6 weeks delivery Please print carefullyEnclosed $__________________________________ NAME STREET CITY ZIP Happy flying stay out cactus Editor March 1981 Model viadon contained two excellent articles RC model airships Slow Year Blimp Lou Bruhn Summer Breeze Balloon Luther Hux Elec Floatplanes/PoIing Continued page 92 pieces area behind step should go first large piece area front step Allow generous overlap between two Cover top last Accept inevitable wrinides float curved hard get away few cant seen air anyway water rudder handy steering especially after landing have - get plane back shore breeze have taxi crosswind downwind can almost impossible water rudder can have enough power get plane step air rudder effective Personal ly have bad habit flying long can have enough power idle back displacement mode displace ment mode air rudder doesnt much short power blasts will help mentioned dont land enough power left use 3 sq water rudder 590 sq plane can scale other sizes using ratio wing rudder area water rudder attached directly air rudder simplicity Look closely photo can see rudder made music wire bent rectangular U plastic sheet surface taped together clear package wrap ping tape available stationety stores Part music wire left vertical stub matching stub attached rudder wheel collar joins wheel collar wonderful allows both side-to-side vertical adjustment rudder rudder should adjusted vertically top just out water plane sitting water no power Under power plane rocks back floats rudder well underwaterbut step rudder completely out water no drag Clever did water rudder years because drag severe enough prevent taking off finally simple system popped mind Now have benefits problems Another potential problem effect water rudder drag rudder hinges can severe provide tube rudder stub go through attached fuselage relieve drag pressure Enough now Next month will get final setup tips techniques - water flying Get plane ready continued 172 ModelAviation