Free Flight DURA TION Bob Meuser FORTY-NINER Power class revisited May column ran item event credited Scale Staffel club asmuch rules published swiped its publication However appears event originated Orbiteers addition recent rules wee bit different ones presented differences Maximum dimensions 49 49 48 stated Engine stock reed valve direct-drive Cox Tes tors 049 Minimum official flight time 40 sec unlimited attempts make three official flights permitted scoring formula engine run to nearest whole second nearest sec objected its first running event went pretty well winner being T Wilson flying simple almost-all-balsa affair everyone good time have hunch well seeing lot event Glitch department drawing wooden steelyard scale text accompanied May issue error two drawingthe weight slider should exactly pound onnce error reflected text too last sentence next-to-last paragraph item replace half-oz weight one-oz weight half-lb weight one-lb weight Also comment about use aluminum yardstick could get trouble high loads yardstick could become unstable flip over its sideit depends thickness yardstick suggested aluminum avoid changes balance resulting apparently moisture adsorption desorption has problem several Indoor scales have built Dittmer guy designed thing mentions small changes occur 56 Model Aviation 41z9n 7ASZfl aded rodstra 49lzted8e IL______ /2enut p/a zst zi/ater cf par/s arcznd section 6/se nj/k cizrton asform cra/2e sand flush Would believe shows make form molding tail boom Wakefield Bob offers much about technique its inventor column Right Warren Williams enters twin-tractor one-flight-at-dawn Unlimited Mulvihill event US FP Champs planned will first serious attempt win event unorthodox configuration Model built specifically event East Coaster Donald Ross big canards 30-incher flies con sistent two minutes outdoors kinds weather easily compensated small tab masking tape right place purposes changes small enough ignored Bill Bigge suggests improvement ep oxy pieces brass tubing having length bit greater thickness yard stick holes Also suggests poise sliding weight designed simply slide alongthe top beam out pivoting mark some sort poise read against scale Bill makes living doing precision measure ments various sorts has lot other suggestions about making balances little heavy get time Tomy timers again According Jack Pitcher writing newsletter NorWesters FF MAC Portland OR Tomy toy people have done themselves better smaller lighter ver sion timer found Rascal Robot similar wind-up toys reason grown hah persons care about such kidstuff wind-up toys motors make rather good dethermalizer timers new toys called Pencil Pets because powered front section clipped end ordinary household pencil unpowered rear section clipped other end pencil two ver sions Dachshund dog green cater pillar Cost around $3 discount toy marts motor design similar earlier ones everything smaller making somewhat difficult work weight mere 19 grams against 28 grams smaller seems run smoother Pitcher modified pretty much accordance Lindley-Stoy article appeared June 1982 issue Model Aviation simplest modificationsimply removing drive springthe overall thickness /4 comfortable fit HLG No use taking time gorey details However youll send SASE Ill send Xerox copy Pitchers arti cle NFFS stuff NFFS Publications 4858 Moorpark Aye San Jose CA 95129 offers two specials good through August 1 1983 Any three issues NFFS Sympo re ports including World Champs Tech Report $20 six issues $35 Surface postage included prices nonmembers NFFS please include ad ditional $4 order Note following issues available 1968 69 70 75 addition one-year sets back issues Free Flight NFFS Digest offered $18 postpaid regard less NFFS membership Make checks payable NFFS have some changes among watch store have new Membership Subscription Manager Don Hughes Hal Wood Dons ad dress 8383 Zancanaro Ct Citrus Heights CA 95610 already aware arrangement NFFS plans publications supplies changed back January Fred Terzian San Jose address above con tinues handle publications no longer handles plans Plans now handled Manny Andrade has also han dling NFFS Supplies some time Mannys address 1602 Encanto Place Walnut Creek CA 94596 Write Fred Manny complete price lists have lots goodies Bill Warner built 1943 German design enter annual Northrop Flying Wing Contest its curves constantly-changing airfoil section building wasnt easybut coverings turned out real headache Silkspan went eas ily looked great minor crash shat tered covering Iron-on film wouldnt follow concave upper-rear portion airfoil Nylon tried weighed ton Red silk wrinkled nasty places heck wrinkles thats way model ended up Barn-door drag flaps proved too small ineffective dethermalize model reliably minuses Bill still won Excessive modesty prevented him featuring model own column Tailboom form Don Hughes Citrus Heights CA got interested Wakefield rubber-power models few years ago decided tubular fuselage way go Finding suitable form motor tube no sweat visit local hardware store turned up piece 1 A-in steel tubing getting form tail boom proved hassle advised try poo1 cue after agony finding source rummaged through least hundred before found close what wanted fudge adding layers tape get right size taper course have access metal- wood-turning lathe could make proper form unfortunately modelers dont having made commercially would prohibitively ex pensive Later Don came up better solution see sketch Go hardware store buy three-ft length 3/x-in threaded rod handful nuts washers corresponding diameters end form couple stations between used li/s 1 3/4 /2 washers spaced form boom 34 long will have drill out some washers go rod Lock washers place nuts after carefully checking taper along straightedge now have skeleton boom form little trigonometry will sim plify locating washers rod can just well trial error Mix up enough plaster paris fill between two adjacent washers using piece milk carton form Peel off paper soon after plaster begins set Shave down excess plaster using hack saw like spoke shave easier work plaster before has completely dried Sand metallic sandpaper like Drag onskin because wont clog Complete sanding using conventional sandpaper ce August 1983 57 Continued page 141 Would anyone besides Bill Warner build did enter Towline event 1982 Northrop Flying Wing Meetand Won design 19A3 German plan sold Old Timer Models modern addition rudder-mounted speed-brake-type dethermalizer Alas about 25% effective conventional pop-up-stab OT DT panels actuated rubberband-and-cam arrangement timed fuse Photos Bill Phyllis Warner CATCH ONE. IFYOU CAN See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 FF Duration/Meuser Continued page 57 mented straightedge will bridge across two washers sand until form round flush washers Repeat process until have filled blanks After plaster has thoroughly set completely dry apply coat sealer choiceplain dope example now have form strong warpresistant inexpensive $5 have buy materials can afford buy several branch out new designs Too often fear would-be FAt-event modelers get turned off see de signs models seem demand modeler have access full-house ma chine shop Often simple hand tools bit ingenuity dash what heck will get job done just well Juniors Problem needs bashed around some Maybe should broaden term Beginners SUPERMANTIS American R/C REAL MOVER. monkey around anything else can have best Thousands have thrilled excitement Mantis Supermantis provide very latest technology %coupled proven design gets air eeps flying In-house manu facturing & quick delivery American made parts accessories means wont waiting promised overseas shipments process orders promptly eicient. courtesy Supermantis Get Hands Supermantis 00 Mantis 00 Collective Pitch Mod 0 Prices subject change notice Send $4 Main Plan Additional Information American H/C Helicopterslnc 619 7447533 635-11 Norm Twin Oaks Valley Road San Marcos CA92069 aware its advantages over butyrate dope Sig points out following advantages Compatibility epoxy enamel paints plain fabric coverings can nitrate-doped painted eliminating need ex pensive iron-on coverings shrinks moderately compared butyrate better adhesion structures higher solids content fills fewer coats ideal light FF rubber-power models fuel resistance factor fuel resistance factor can provided fuel-proof topcoat Sig also points out butyrate dope can applied over nitrate isnt wise apply nitrate over butyrateunless youre big crackle finishes worse Actually can get trouble using butyrate over nitrate according some horror stories Ive read newsletters So play safe check out something doesnt matter time switch brands sources supply Sig doesnt carry thinner specifically nitrate dope its regular dope thinner retarder job nicely Ive used both acrylic lacquer thinner cheapest available regular lacquer thinner nitrate dope has worked just fine sort thing best tested first before using something important Free Flight Hall Fame Awards National Free Flight Society has announced recipients Free Flight Hall Fame Continued page 144 Problem prefer say crucial talked about least done-anything-about problem time would think over statement industry does see way can ascribe perhaps terminal case congenital myopia have few outstanding noble effortsEd Whittens long-standing ing notable comes mind have tackled problem local level shout loud might merely faint voices wilderness real commitment someone some group put together form long-range planand making certain plan kept track small effort small comparison size problem never theless significant has Beginners Corner Free Flight NFFS Digest edited Frank Gue Frank sensed need such effort several years ago cor rectly guessed merely suggesting such thing would get nowhere volunteered job himself despite almost pro hibitively demanding business schedule now realities life force him give up need someone else take over job Volunteers Nitrate dope returns After lapse least five years Sig Manufacturing Com pany again peddling nitrate dope pleased note Free Flighters well August 1983 141 2Jerry SmallMiss Oailas/X4o1179 3PhIl BussellPolecat/X-4o1201 4Gary HeitholdDenight/X-401225 5John JenningsPolecat/X401197 *Fast Time The Best Custom Screen Sportswear See Us NATS will design com memorative T-Shirt club special event Call write details Corsait iesigns just some avaition designs available top quality line sportswear designs direct print eat transferl Gee Bee Warhawks Fokker DVII. P38 Christen Eagle. Pitts Special . Citabria. AT6. p-47. Steerman. Curtis Jenny . Corsair . Coaches ShirtS1295T-ShirnSB95 Ladies TopS950Long Sleeve T$795 Shorts$S95BeaeballSS95 Lined JacketS2195Football$S95 Tote Bag5795Sweetshirt$950 Tire Cover$14S5Hooded SweatSi4SS HatSS95 Wide choice colors sizes Send $100 new Illustrated Brochure Nane Address CityStateZip Design SizeColor now accept MasterCard & Visa _____ TO ORDER Send check money order add 10% postagelhandling MD res 5% tax OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct. Upper Marlboro MD 20772 3011843-3050 FF Duration/Meuser Continued tram page i41 Award 1983 noted individuals have contributed development continuity Free Flight model airplane ac tivities throughout US world Society proud recognize achievements Reginald Denny deceased modeler designs have widely accepted both 1930s 1980s can forget Dennymite engine John Gard scientific designer Wakefield Nordic models has car ried theory aeronautics practical application through designs Don McGovern Editor Flying Models magazine years designer truly unique models designer/draftsman model plans almost anyone else John Pond grandfather OldTimers activity throughout world has pusher Free Flight since 930s George Reich dedicated modeler desire achieve championship status realized fully 1961 won Wakefield Cup USA developed rubber-powered designs have widely mimicked other modelers Lawrence Smithline name remem bered oldster today Larrys articles model construction appeared old Flying Aces Model Airplane News Air Trails yesteryear todays mod elers cut modeling teeth Larrys de signs Model Year Awards Jim Wilson Model Year Chairman National Free Flight Society announces awards 1983 International Classes FlAMatt GewainPacer 14 FiBAtain Landeau FiCAdreas Mecxner Delfsn AMA Power SmallRoman Ramirez Careo LargeHal WoodsSummerwind Doug Gaibreath744 Other Categories Hand-Phil Hainer JrKwik Flip II LaunchedPhil Hainer Sr Glider IndoorStan ChiltonSweet 16 EZ-B UnlimitedBob WhiteUnlimited UnRubberlimited ScaleDon SrullSantos DuMont SpecialEd DotbyFAI Rubber awardees have invited display discuss models NFFS Sym posium held AMA Nationals July Drawings photos stories about models will appear NFFS Sym posium Report will available Nationals mail order further information contact Jim Wilson 1030 Ave nue D Redondo Beach CA 90277 Bob Meuser 4200 Gre gory St Oakland CA 94619 Electric Hurricane/Crowe Continued page 92 wing small wood screws main gear mounted gear blocks aluminum straps screws gear fairing doors 050 ASA plastic Small metal strips soldered gear legs hold gear doors means 2-56 screws through small holes drilled straps gear doors tail wheel held Du Bro wheel collar Study plans steering arm soldered top collar picks up rudder cable steering engine cowl can carved bal sa laid-up fiberglass pulled plastic cowl model made ASA plastic pulled over wooden pattern cockpit canopy made same way isnt really lot effort carving plug have access vacu-form ma chine give try Make exhaust manifolds scrap soft balsa apply sanding sealer finish flat black paint Finishing Since trying keep models weight low chose cover MonoKote tried find flat-finish type mentioned Don Srulls Spitfire article no luck ended up glossy stuff 144 Model Aviation Gee Bee Designed RIC Combat agile little performer can fly rings around airplane youve ever owned youre looking really spirited responsive aircraft thats easier build fly Warbird exactly what need 3 Channel RIC 19 25 36Span Mixer Included $3495 OWBIRD Showbird big gest best has rock steady pattern performance thats amazing because will rolls straight up out sight stock K & B 40 slows down like glider landing 64 inches beautiful flying wing will make look great field Precision kit 2540 engine 7 eel ol rolled plans $5995 See dealer first send check money order Pacific Air 15 Skyline Drive Woodside CA 94062 %%y 1131 NW 45 Slreet Ft Lauderdale FL 33309 1305 491-6 175 ENGINEERING TIlE LANDING SEAR PEOPLE Tired bi laildiag gears kit dust III biggie properly 0 & 0 Eaglneenllg can seIne year probleesl * Custom heBI seeds & syocs guarasleed * Straug & durable ti wilhstasd Ike leogbesl lauding * 0 & 0 Engineering gear will work & beep biggie flag * In stack roploemeellI gear popular models Ryram Pills Christie Eagle CAP 21 Ralsa USA J-3 CUB Air Tech Powece Eugle Nesee Big Stick Cbamp Cltabria & II models Snapper Stieger snapper Too painted flat Pactra Formula U covered fuselage silk gets around compound curves easily weight adds negligible fuse lage given four coats nitrate dope final finish light coat Formula U olive drab followed light coat camouflage flat tan Before painting wiped MonoKote areas acetone remove oil dirt Decals produced Dave Platt Models very close proper size model Control rods used Suliivan Gold-NRod cable type lightweight flexible can easily positioned through fuselage bulkheads cable system moving elevator rudder makes very neat installa tion like attach cable servo arms either Du-Bro Gold berg easy connectors rig con trols setup need loosen screw connector move cable fore aft get desired result Flying Did get everything lined-up properly wing tips have cor rect amount washout Are control attachment points secure Are wheels tight Dont laugh Ive seen new ship leave wheel roll ing down runway lifted off cause pre-flight check overlooked takes small item destroy three four months work Check balance point should fall between 25% 30% wing chord Dont fly ship tail-heavy rearward balance point courting snap-roll disaster sure CC correct point model tested 13-in-dia 8-in-pitch prop did very well once trimmed out Later tried 12-8 13-incher seemed put out much thrust 530 sq wing area model handles 4-lb total weight ease During test flights motor battery closely watched bit concerned might heat up too much seems stay very cooL believe Hurricane would really perform new Cobalt motors Maybe Ill try later now Im having ball straight Astro 15 gear unit dont think will have regrets build ship took Hurri cane Valley Flyers Contest California stole show youre looking fun Scale project has great looks flyabiity SAFE FLYING IS NO ACCIDENT ************* *** ** WW***W * * * * WANDITTM * *Dealers Invited * * COn yOar warranty * ~J -K *CORD *Wet DryK * Stich AbrasivesK K *A Keen Machine' gives enceptionalK *sanding control encellent finish* * * 8995 Basic OcI 1 flat Wand 1 * ritsK *10895 Builder Special mcI 2 fIat 1 half * ano wand 5 6 grtsK *12995 Delver includes 3 flar 2 halfK * nd wauds buff wanos andK -K * 6 grits * *Addtional Wands Abrasves ava ableK * e local hobby shopK *K *80015 ELMORE Eoe No 1214 288 5780K * P 0 Box 266 uite Texas 75149K K KKKKKKKKKK*K Radio Technique/Myers Continued page 39 tion selectively amplifies signals between 72 73 MHz rest gives us second stage filtering Meanwhile crystal-controlled oscillator LO receiver running fre quency precisely 455 MHz above transmitters frequency oscil lators voltage frequency injected mixer along amplified RE voltages IRE section mixer frequency present mixed other frequency present including local oscillator mixing new fre Continued page 148 August 1983 145 INTRODUCING THE NEW FOX 36 RC Schneurle Ported Ball Bearing Main BRAND NEW 36 RC.evolved highly successful Combat Special took highly successful Fox Combat Special fitted new MarkXtype carburetor made porting head modifications get run idle well no-nitro fuel Result.the powerful 36 RC market new Fox 36 RC combines power superb idling characteristics light weight.and delivers lowest cost fuels 23900 Fox 36 RO$5995 90236 TiltUp Muffler1495 90237 Tilt-Down Muffler1495 F 0 X MANUFACTURING Co 5305 TDWSON AVEFORT SMITH ARK 72901 Hot Line SOif 686-1656 IN STOCK FOR IMMEDIATE SHIPMENT New 30 CID QUADRA$20950 New 22 CID QUADRA$10950 Req 22 QUADRA $10450 Brisighelle Flywheel 012450 Req 22 QUADRA POWER ASSEMBLY ONLY 86450 QUADRA REPAIR 1000 pIes pews Jim Mesner ERCOUPEPLANS 82395 KIT $23995 Jim Messe TOMAHAWKPLANS $2395 KIT $25995 Jinx Messe 9-BALL TRAINER PLANS $1695 KIT $9995 BALSA end BASSWOOD fell siesI 35% OFF Connept FLEET PLANS $2995 KIT $15995 COWL $1995 P6W RADIAL ENGINES tar Fleet $2495 VICKERS LEWIS MACHINE GUN KITS $1495 CECONITE Podunts 10% OFF Siq J3 CUB KIT $12495 PLANS SUPER STEARMAN IGedfreyl $2095 STARDUSTER TOO IBrisighellel J3 CUB NeIit $2995 VOLKSPLANE IChinken Cherliel $2395 COCKPIT KITS Tonehewk F4U-1 Spitfire $2295 Ernoepe $2095 Steernien 82295 Citebrie $2495 J-3 Cob $2195 ME-109 $2295 Fleet $2195 US Ocedre FUEL TANKSlOne $695 32 en $795 FIBERGLASS ARROW SHAFTS 511$ s 32 long 61$1l1110 24-Hour Service. Add $250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 VelleY View Dr Allegeny NY 14706 AU NEW cusro SCNNEURLE cox 009 ENGINES Racing & Stunt versions special hard chrome & honing technology Also Complete inventory individual stock custom parts Cox TD 020 049 051 & 09 engines Competition parts & accessories Combat Free Fit C/L & A/C Racing Speed Stunt & Team Race Exclusive distributor Nelson 15 engIne & parts detailed catalog send 50 cents Kustom Kraftsmanshlp Box 2699 Laguna Hills CA 92653 Telephone 714 830-5162
Edition: Model Aviation - 1983/08
Page Numbers: 56, 57, 141, 144, 145
Free Flight DURA TION Bob Meuser FORTY-NINER Power class revisited May column ran item event credited Scale Staffel club asmuch rules published swiped its publication However appears event originated Orbiteers addition recent rules wee bit different ones presented differences Maximum dimensions 49 49 48 stated Engine stock reed valve direct-drive Cox Tes tors 049 Minimum official flight time 40 sec unlimited attempts make three official flights permitted scoring formula engine run to nearest whole second nearest sec objected its first running event went pretty well winner being T Wilson flying simple almost-all-balsa affair everyone good time have hunch well seeing lot event Glitch department drawing wooden steelyard scale text accompanied May issue error two drawingthe weight slider should exactly pound onnce error reflected text too last sentence next-to-last paragraph item replace half-oz weight one-oz weight half-lb weight one-lb weight Also comment about use aluminum yardstick could get trouble high loads yardstick could become unstable flip over its sideit depends thickness yardstick suggested aluminum avoid changes balance resulting apparently moisture adsorption desorption has problem several Indoor scales have built Dittmer guy designed thing mentions small changes occur 56 Model Aviation 41z9n 7ASZfl aded rodstra 49lzted8e IL______ /2enut p/a zst zi/ater cf par/s arcznd section 6/se nj/k cizrton asform cra/2e sand flush Would believe shows make form molding tail boom Wakefield Bob offers much about technique its inventor column Right Warren Williams enters twin-tractor one-flight-at-dawn Unlimited Mulvihill event US FP Champs planned will first serious attempt win event unorthodox configuration Model built specifically event East Coaster Donald Ross big canards 30-incher flies con sistent two minutes outdoors kinds weather easily compensated small tab masking tape right place purposes changes small enough ignored Bill Bigge suggests improvement ep oxy pieces brass tubing having length bit greater thickness yard stick holes Also suggests poise sliding weight designed simply slide alongthe top beam out pivoting mark some sort poise read against scale Bill makes living doing precision measure ments various sorts has lot other suggestions about making balances little heavy get time Tomy timers again According Jack Pitcher writing newsletter NorWesters FF MAC Portland OR Tomy toy people have done themselves better smaller lighter ver sion timer found Rascal Robot similar wind-up toys reason grown hah persons care about such kidstuff wind-up toys motors make rather good dethermalizer timers new toys called Pencil Pets because powered front section clipped end ordinary household pencil unpowered rear section clipped other end pencil two ver sions Dachshund dog green cater pillar Cost around $3 discount toy marts motor design similar earlier ones everything smaller making somewhat difficult work weight mere 19 grams against 28 grams smaller seems run smoother Pitcher modified pretty much accordance Lindley-Stoy article appeared June 1982 issue Model Aviation simplest modificationsimply removing drive springthe overall thickness /4 comfortable fit HLG No use taking time gorey details However youll send SASE Ill send Xerox copy Pitchers arti cle NFFS stuff NFFS Publications 4858 Moorpark Aye San Jose CA 95129 offers two specials good through August 1 1983 Any three issues NFFS Sympo re ports including World Champs Tech Report $20 six issues $35 Surface postage included prices nonmembers NFFS please include ad ditional $4 order Note following issues available 1968 69 70 75 addition one-year sets back issues Free Flight NFFS Digest offered $18 postpaid regard less NFFS membership Make checks payable NFFS have some changes among watch store have new Membership Subscription Manager Don Hughes Hal Wood Dons ad dress 8383 Zancanaro Ct Citrus Heights CA 95610 already aware arrangement NFFS plans publications supplies changed back January Fred Terzian San Jose address above con tinues handle publications no longer handles plans Plans now handled Manny Andrade has also han dling NFFS Supplies some time Mannys address 1602 Encanto Place Walnut Creek CA 94596 Write Fred Manny complete price lists have lots goodies Bill Warner built 1943 German design enter annual Northrop Flying Wing Contest its curves constantly-changing airfoil section building wasnt easybut coverings turned out real headache Silkspan went eas ily looked great minor crash shat tered covering Iron-on film wouldnt follow concave upper-rear portion airfoil Nylon tried weighed ton Red silk wrinkled nasty places heck wrinkles thats way model ended up Barn-door drag flaps proved too small ineffective dethermalize model reliably minuses Bill still won Excessive modesty prevented him featuring model own column Tailboom form Don Hughes Citrus Heights CA got interested Wakefield rubber-power models few years ago decided tubular fuselage way go Finding suitable form motor tube no sweat visit local hardware store turned up piece 1 A-in steel tubing getting form tail boom proved hassle advised try poo1 cue after agony finding source rummaged through least hundred before found close what wanted fudge adding layers tape get right size taper course have access metal- wood-turning lathe could make proper form unfortunately modelers dont having made commercially would prohibitively ex pensive Later Don came up better solution see sketch Go hardware store buy three-ft length 3/x-in threaded rod handful nuts washers corresponding diameters end form couple stations between used li/s 1 3/4 /2 washers spaced form boom 34 long will have drill out some washers go rod Lock washers place nuts after carefully checking taper along straightedge now have skeleton boom form little trigonometry will sim plify locating washers rod can just well trial error Mix up enough plaster paris fill between two adjacent washers using piece milk carton form Peel off paper soon after plaster begins set Shave down excess plaster using hack saw like spoke shave easier work plaster before has completely dried Sand metallic sandpaper like Drag onskin because wont clog Complete sanding using conventional sandpaper ce August 1983 57 Continued page 141 Would anyone besides Bill Warner build did enter Towline event 1982 Northrop Flying Wing Meetand Won design 19A3 German plan sold Old Timer Models modern addition rudder-mounted speed-brake-type dethermalizer Alas about 25% effective conventional pop-up-stab OT DT panels actuated rubberband-and-cam arrangement timed fuse Photos Bill Phyllis Warner CATCH ONE. IFYOU CAN See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 FF Duration/Meuser Continued page 57 mented straightedge will bridge across two washers sand until form round flush washers Repeat process until have filled blanks After plaster has thoroughly set completely dry apply coat sealer choiceplain dope example now have form strong warpresistant inexpensive $5 have buy materials can afford buy several branch out new designs Too often fear would-be FAt-event modelers get turned off see de signs models seem demand modeler have access full-house ma chine shop Often simple hand tools bit ingenuity dash what heck will get job done just well Juniors Problem needs bashed around some Maybe should broaden term Beginners SUPERMANTIS American R/C REAL MOVER. monkey around anything else can have best Thousands have thrilled excitement Mantis Supermantis provide very latest technology %coupled proven design gets air eeps flying In-house manu facturing & quick delivery American made parts accessories means wont waiting promised overseas shipments process orders promptly eicient. courtesy Supermantis Get Hands Supermantis 00 Mantis 00 Collective Pitch Mod 0 Prices subject change notice Send $4 Main Plan Additional Information American H/C Helicopterslnc 619 7447533 635-11 Norm Twin Oaks Valley Road San Marcos CA92069 aware its advantages over butyrate dope Sig points out following advantages Compatibility epoxy enamel paints plain fabric coverings can nitrate-doped painted eliminating need ex pensive iron-on coverings shrinks moderately compared butyrate better adhesion structures higher solids content fills fewer coats ideal light FF rubber-power models fuel resistance factor fuel resistance factor can provided fuel-proof topcoat Sig also points out butyrate dope can applied over nitrate isnt wise apply nitrate over butyrateunless youre big crackle finishes worse Actually can get trouble using butyrate over nitrate according some horror stories Ive read newsletters So play safe check out something doesnt matter time switch brands sources supply Sig doesnt carry thinner specifically nitrate dope its regular dope thinner retarder job nicely Ive used both acrylic lacquer thinner cheapest available regular lacquer thinner nitrate dope has worked just fine sort thing best tested first before using something important Free Flight Hall Fame Awards National Free Flight Society has announced recipients Free Flight Hall Fame Continued page 144 Problem prefer say crucial talked about least done-anything-about problem time would think over statement industry does see way can ascribe perhaps terminal case congenital myopia have few outstanding noble effortsEd Whittens long-standing ing notable comes mind have tackled problem local level shout loud might merely faint voices wilderness real commitment someone some group put together form long-range planand making certain plan kept track small effort small comparison size problem never theless significant has Beginners Corner Free Flight NFFS Digest edited Frank Gue Frank sensed need such effort several years ago cor rectly guessed merely suggesting such thing would get nowhere volunteered job himself despite almost pro hibitively demanding business schedule now realities life force him give up need someone else take over job Volunteers Nitrate dope returns After lapse least five years Sig Manufacturing Com pany again peddling nitrate dope pleased note Free Flighters well August 1983 141 2Jerry SmallMiss Oailas/X4o1179 3PhIl BussellPolecat/X-4o1201 4Gary HeitholdDenight/X-401225 5John JenningsPolecat/X401197 *Fast Time The Best Custom Screen Sportswear See Us NATS will design com memorative T-Shirt club special event Call write details Corsait iesigns just some avaition designs available top quality line sportswear designs direct print eat transferl Gee Bee Warhawks Fokker DVII. P38 Christen Eagle. Pitts Special . Citabria. AT6. p-47. Steerman. Curtis Jenny . Corsair . Coaches ShirtS1295T-ShirnSB95 Ladies TopS950Long Sleeve T$795 Shorts$S95BeaeballSS95 Lined JacketS2195Football$S95 Tote Bag5795Sweetshirt$950 Tire Cover$14S5Hooded SweatSi4SS HatSS95 Wide choice colors sizes Send $100 new Illustrated Brochure Nane Address CityStateZip Design SizeColor now accept MasterCard & Visa _____ TO ORDER Send check money order add 10% postagelhandling MD res 5% tax OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct. Upper Marlboro MD 20772 3011843-3050 FF Duration/Meuser Continued tram page i41 Award 1983 noted individuals have contributed development continuity Free Flight model airplane ac tivities throughout US world Society proud recognize achievements Reginald Denny deceased modeler designs have widely accepted both 1930s 1980s can forget Dennymite engine John Gard scientific designer Wakefield Nordic models has car ried theory aeronautics practical application through designs Don McGovern Editor Flying Models magazine years designer truly unique models designer/draftsman model plans almost anyone else John Pond grandfather OldTimers activity throughout world has pusher Free Flight since 930s George Reich dedicated modeler desire achieve championship status realized fully 1961 won Wakefield Cup USA developed rubber-powered designs have widely mimicked other modelers Lawrence Smithline name remem bered oldster today Larrys articles model construction appeared old Flying Aces Model Airplane News Air Trails yesteryear todays mod elers cut modeling teeth Larrys de signs Model Year Awards Jim Wilson Model Year Chairman National Free Flight Society announces awards 1983 International Classes FlAMatt GewainPacer 14 FiBAtain Landeau FiCAdreas Mecxner Delfsn AMA Power SmallRoman Ramirez Careo LargeHal WoodsSummerwind Doug Gaibreath744 Other Categories Hand-Phil Hainer JrKwik Flip II LaunchedPhil Hainer Sr Glider IndoorStan ChiltonSweet 16 EZ-B UnlimitedBob WhiteUnlimited UnRubberlimited ScaleDon SrullSantos DuMont SpecialEd DotbyFAI Rubber awardees have invited display discuss models NFFS Sym posium held AMA Nationals July Drawings photos stories about models will appear NFFS Sym posium Report will available Nationals mail order further information contact Jim Wilson 1030 Ave nue D Redondo Beach CA 90277 Bob Meuser 4200 Gre gory St Oakland CA 94619 Electric Hurricane/Crowe Continued page 92 wing small wood screws main gear mounted gear blocks aluminum straps screws gear fairing doors 050 ASA plastic Small metal strips soldered gear legs hold gear doors means 2-56 screws through small holes drilled straps gear doors tail wheel held Du Bro wheel collar Study plans steering arm soldered top collar picks up rudder cable steering engine cowl can carved bal sa laid-up fiberglass pulled plastic cowl model made ASA plastic pulled over wooden pattern cockpit canopy made same way isnt really lot effort carving plug have access vacu-form ma chine give try Make exhaust manifolds scrap soft balsa apply sanding sealer finish flat black paint Finishing Since trying keep models weight low chose cover MonoKote tried find flat-finish type mentioned Don Srulls Spitfire article no luck ended up glossy stuff 144 Model Aviation Gee Bee Designed RIC Combat agile little performer can fly rings around airplane youve ever owned youre looking really spirited responsive aircraft thats easier build fly Warbird exactly what need 3 Channel RIC 19 25 36Span Mixer Included $3495 OWBIRD Showbird big gest best has rock steady pattern performance thats amazing because will rolls straight up out sight stock K & B 40 slows down like glider landing 64 inches beautiful flying wing will make look great field Precision kit 2540 engine 7 eel ol rolled plans $5995 See dealer first send check money order Pacific Air 15 Skyline Drive Woodside CA 94062 %%y 1131 NW 45 Slreet Ft Lauderdale FL 33309 1305 491-6 175 ENGINEERING TIlE LANDING SEAR PEOPLE Tired bi laildiag gears kit dust III biggie properly 0 & 0 Eaglneenllg can seIne year probleesl * Custom heBI seeds & syocs guarasleed * Straug & durable ti wilhstasd Ike leogbesl lauding * 0 & 0 Engineering gear will work & beep biggie flag * In stack roploemeellI gear popular models Ryram Pills Christie Eagle CAP 21 Ralsa USA J-3 CUB Air Tech Powece Eugle Nesee Big Stick Cbamp Cltabria & II models Snapper Stieger snapper Too painted flat Pactra Formula U covered fuselage silk gets around compound curves easily weight adds negligible fuse lage given four coats nitrate dope final finish light coat Formula U olive drab followed light coat camouflage flat tan Before painting wiped MonoKote areas acetone remove oil dirt Decals produced Dave Platt Models very close proper size model Control rods used Suliivan Gold-NRod cable type lightweight flexible can easily positioned through fuselage bulkheads cable system moving elevator rudder makes very neat installa tion like attach cable servo arms either Du-Bro Gold berg easy connectors rig con trols setup need loosen screw connector move cable fore aft get desired result Flying Did get everything lined-up properly wing tips have cor rect amount washout Are control attachment points secure Are wheels tight Dont laugh Ive seen new ship leave wheel roll ing down runway lifted off cause pre-flight check overlooked takes small item destroy three four months work Check balance point should fall between 25% 30% wing chord Dont fly ship tail-heavy rearward balance point courting snap-roll disaster sure CC correct point model tested 13-in-dia 8-in-pitch prop did very well once trimmed out Later tried 12-8 13-incher seemed put out much thrust 530 sq wing area model handles 4-lb total weight ease During test flights motor battery closely watched bit concerned might heat up too much seems stay very cooL believe Hurricane would really perform new Cobalt motors Maybe Ill try later now Im having ball straight Astro 15 gear unit dont think will have regrets build ship took Hurri cane Valley Flyers Contest California stole show youre looking fun Scale project has great looks flyabiity SAFE FLYING IS NO ACCIDENT ************* *** ** WW***W * * * * WANDITTM * *Dealers Invited * * COn yOar warranty * ~J -K *CORD *Wet DryK * Stich AbrasivesK K *A Keen Machine' gives enceptionalK *sanding control encellent finish* * * 8995 Basic OcI 1 flat Wand 1 * ritsK *10895 Builder Special mcI 2 fIat 1 half * ano wand 5 6 grtsK *12995 Delver includes 3 flar 2 halfK * nd wauds buff wanos andK -K * 6 grits * *Addtional Wands Abrasves ava ableK * e local hobby shopK *K *80015 ELMORE Eoe No 1214 288 5780K * P 0 Box 266 uite Texas 75149K K KKKKKKKKKK*K Radio Technique/Myers Continued page 39 tion selectively amplifies signals between 72 73 MHz rest gives us second stage filtering Meanwhile crystal-controlled oscillator LO receiver running fre quency precisely 455 MHz above transmitters frequency oscil lators voltage frequency injected mixer along amplified RE voltages IRE section mixer frequency present mixed other frequency present including local oscillator mixing new fre Continued page 148 August 1983 145 INTRODUCING THE NEW FOX 36 RC Schneurle Ported Ball Bearing Main BRAND NEW 36 RC.evolved highly successful Combat Special took highly successful Fox Combat Special fitted new MarkXtype carburetor made porting head modifications get run idle well no-nitro fuel Result.the powerful 36 RC market new Fox 36 RC combines power superb idling characteristics light weight.and delivers lowest cost fuels 23900 Fox 36 RO$5995 90236 TiltUp Muffler1495 90237 Tilt-Down Muffler1495 F 0 X MANUFACTURING Co 5305 TDWSON AVEFORT SMITH ARK 72901 Hot Line SOif 686-1656 IN STOCK FOR IMMEDIATE SHIPMENT New 30 CID QUADRA$20950 New 22 CID QUADRA$10950 Req 22 QUADRA $10450 Brisighelle Flywheel 012450 Req 22 QUADRA POWER ASSEMBLY ONLY 86450 QUADRA REPAIR 1000 pIes pews Jim Mesner ERCOUPEPLANS 82395 KIT $23995 Jim Messe TOMAHAWKPLANS $2395 KIT $25995 Jinx Messe 9-BALL TRAINER PLANS $1695 KIT $9995 BALSA end BASSWOOD fell siesI 35% OFF Connept FLEET PLANS $2995 KIT $15995 COWL $1995 P6W RADIAL ENGINES tar Fleet $2495 VICKERS LEWIS MACHINE GUN KITS $1495 CECONITE Podunts 10% OFF Siq J3 CUB KIT $12495 PLANS SUPER STEARMAN IGedfreyl $2095 STARDUSTER TOO IBrisighellel J3 CUB NeIit $2995 VOLKSPLANE IChinken Cherliel $2395 COCKPIT KITS Tonehewk F4U-1 Spitfire $2295 Ernoepe $2095 Steernien 82295 Citebrie $2495 J-3 Cob $2195 ME-109 $2295 Fleet $2195 US Ocedre FUEL TANKSlOne $695 32 en $795 FIBERGLASS ARROW SHAFTS 511$ s 32 long 61$1l1110 24-Hour Service. Add $250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 VelleY View Dr Allegeny NY 14706 AU NEW cusro SCNNEURLE cox 009 ENGINES Racing & Stunt versions special hard chrome & honing technology Also Complete inventory individual stock custom parts Cox TD 020 049 051 & 09 engines Competition parts & accessories Combat Free Fit C/L & A/C Racing Speed Stunt & Team Race Exclusive distributor Nelson 15 engIne & parts detailed catalog send 50 cents Kustom Kraftsmanshlp Box 2699 Laguna Hills CA 92653 Telephone 714 830-5162
Edition: Model Aviation - 1983/08
Page Numbers: 56, 57, 141, 144, 145
Free Flight DURA TION Bob Meuser FORTY-NINER Power class revisited May column ran item event credited Scale Staffel club asmuch rules published swiped its publication However appears event originated Orbiteers addition recent rules wee bit different ones presented differences Maximum dimensions 49 49 48 stated Engine stock reed valve direct-drive Cox Tes tors 049 Minimum official flight time 40 sec unlimited attempts make three official flights permitted scoring formula engine run to nearest whole second nearest sec objected its first running event went pretty well winner being T Wilson flying simple almost-all-balsa affair everyone good time have hunch well seeing lot event Glitch department drawing wooden steelyard scale text accompanied May issue error two drawingthe weight slider should exactly pound onnce error reflected text too last sentence next-to-last paragraph item replace half-oz weight one-oz weight half-lb weight one-lb weight Also comment about use aluminum yardstick could get trouble high loads yardstick could become unstable flip over its sideit depends thickness yardstick suggested aluminum avoid changes balance resulting apparently moisture adsorption desorption has problem several Indoor scales have built Dittmer guy designed thing mentions small changes occur 56 Model Aviation 41z9n 7ASZfl aded rodstra 49lzted8e IL______ /2enut p/a zst zi/ater cf par/s arcznd section 6/se nj/k cizrton asform cra/2e sand flush Would believe shows make form molding tail boom Wakefield Bob offers much about technique its inventor column Right Warren Williams enters twin-tractor one-flight-at-dawn Unlimited Mulvihill event US FP Champs planned will first serious attempt win event unorthodox configuration Model built specifically event East Coaster Donald Ross big canards 30-incher flies con sistent two minutes outdoors kinds weather easily compensated small tab masking tape right place purposes changes small enough ignored Bill Bigge suggests improvement ep oxy pieces brass tubing having length bit greater thickness yard stick holes Also suggests poise sliding weight designed simply slide alongthe top beam out pivoting mark some sort poise read against scale Bill makes living doing precision measure ments various sorts has lot other suggestions about making balances little heavy get time Tomy timers again According Jack Pitcher writing newsletter NorWesters FF MAC Portland OR Tomy toy people have done themselves better smaller lighter ver sion timer found Rascal Robot similar wind-up toys reason grown hah persons care about such kidstuff wind-up toys motors make rather good dethermalizer timers new toys called Pencil Pets because powered front section clipped end ordinary household pencil unpowered rear section clipped other end pencil two ver sions Dachshund dog green cater pillar Cost around $3 discount toy marts motor design similar earlier ones everything smaller making somewhat difficult work weight mere 19 grams against 28 grams smaller seems run smoother Pitcher modified pretty much accordance Lindley-Stoy article appeared June 1982 issue Model Aviation simplest modificationsimply removing drive springthe overall thickness /4 comfortable fit HLG No use taking time gorey details However youll send SASE Ill send Xerox copy Pitchers arti cle NFFS stuff NFFS Publications 4858 Moorpark Aye San Jose CA 95129 offers two specials good through August 1 1983 Any three issues NFFS Sympo re ports including World Champs Tech Report $20 six issues $35 Surface postage included prices nonmembers NFFS please include ad ditional $4 order Note following issues available 1968 69 70 75 addition one-year sets back issues Free Flight NFFS Digest offered $18 postpaid regard less NFFS membership Make checks payable NFFS have some changes among watch store have new Membership Subscription Manager Don Hughes Hal Wood Dons ad dress 8383 Zancanaro Ct Citrus Heights CA 95610 already aware arrangement NFFS plans publications supplies changed back January Fred Terzian San Jose address above con tinues handle publications no longer handles plans Plans now handled Manny Andrade has also han dling NFFS Supplies some time Mannys address 1602 Encanto Place Walnut Creek CA 94596 Write Fred Manny complete price lists have lots goodies Bill Warner built 1943 German design enter annual Northrop Flying Wing Contest its curves constantly-changing airfoil section building wasnt easybut coverings turned out real headache Silkspan went eas ily looked great minor crash shat tered covering Iron-on film wouldnt follow concave upper-rear portion airfoil Nylon tried weighed ton Red silk wrinkled nasty places heck wrinkles thats way model ended up Barn-door drag flaps proved too small ineffective dethermalize model reliably minuses Bill still won Excessive modesty prevented him featuring model own column Tailboom form Don Hughes Citrus Heights CA got interested Wakefield rubber-power models few years ago decided tubular fuselage way go Finding suitable form motor tube no sweat visit local hardware store turned up piece 1 A-in steel tubing getting form tail boom proved hassle advised try poo1 cue after agony finding source rummaged through least hundred before found close what wanted fudge adding layers tape get right size taper course have access metal- wood-turning lathe could make proper form unfortunately modelers dont having made commercially would prohibitively ex pensive Later Don came up better solution see sketch Go hardware store buy three-ft length 3/x-in threaded rod handful nuts washers corresponding diameters end form couple stations between used li/s 1 3/4 /2 washers spaced form boom 34 long will have drill out some washers go rod Lock washers place nuts after carefully checking taper along straightedge now have skeleton boom form little trigonometry will sim plify locating washers rod can just well trial error Mix up enough plaster paris fill between two adjacent washers using piece milk carton form Peel off paper soon after plaster begins set Shave down excess plaster using hack saw like spoke shave easier work plaster before has completely dried Sand metallic sandpaper like Drag onskin because wont clog Complete sanding using conventional sandpaper ce August 1983 57 Continued page 141 Would anyone besides Bill Warner build did enter Towline event 1982 Northrop Flying Wing Meetand Won design 19A3 German plan sold Old Timer Models modern addition rudder-mounted speed-brake-type dethermalizer Alas about 25% effective conventional pop-up-stab OT DT panels actuated rubberband-and-cam arrangement timed fuse Photos Bill Phyllis Warner CATCH ONE. IFYOU CAN See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 FF Duration/Meuser Continued page 57 mented straightedge will bridge across two washers sand until form round flush washers Repeat process until have filled blanks After plaster has thoroughly set completely dry apply coat sealer choiceplain dope example now have form strong warpresistant inexpensive $5 have buy materials can afford buy several branch out new designs Too often fear would-be FAt-event modelers get turned off see de signs models seem demand modeler have access full-house ma chine shop Often simple hand tools bit ingenuity dash what heck will get job done just well Juniors Problem needs bashed around some Maybe should broaden term Beginners SUPERMANTIS American R/C REAL MOVER. monkey around anything else can have best Thousands have thrilled excitement Mantis Supermantis provide very latest technology %coupled proven design gets air eeps flying In-house manu facturing & quick delivery American made parts accessories means wont waiting promised overseas shipments process orders promptly eicient. courtesy Supermantis Get Hands Supermantis 00 Mantis 00 Collective Pitch Mod 0 Prices subject change notice Send $4 Main Plan Additional Information American H/C Helicopterslnc 619 7447533 635-11 Norm Twin Oaks Valley Road San Marcos CA92069 aware its advantages over butyrate dope Sig points out following advantages Compatibility epoxy enamel paints plain fabric coverings can nitrate-doped painted eliminating need ex pensive iron-on coverings shrinks moderately compared butyrate better adhesion structures higher solids content fills fewer coats ideal light FF rubber-power models fuel resistance factor fuel resistance factor can provided fuel-proof topcoat Sig also points out butyrate dope can applied over nitrate isnt wise apply nitrate over butyrateunless youre big crackle finishes worse Actually can get trouble using butyrate over nitrate according some horror stories Ive read newsletters So play safe check out something doesnt matter time switch brands sources supply Sig doesnt carry thinner specifically nitrate dope its regular dope thinner retarder job nicely Ive used both acrylic lacquer thinner cheapest available regular lacquer thinner nitrate dope has worked just fine sort thing best tested first before using something important Free Flight Hall Fame Awards National Free Flight Society has announced recipients Free Flight Hall Fame Continued page 144 Problem prefer say crucial talked about least done-anything-about problem time would think over statement industry does see way can ascribe perhaps terminal case congenital myopia have few outstanding noble effortsEd Whittens long-standing ing notable comes mind have tackled problem local level shout loud might merely faint voices wilderness real commitment someone some group put together form long-range planand making certain plan kept track small effort small comparison size problem never theless significant has Beginners Corner Free Flight NFFS Digest edited Frank Gue Frank sensed need such effort several years ago cor rectly guessed merely suggesting such thing would get nowhere volunteered job himself despite almost pro hibitively demanding business schedule now realities life force him give up need someone else take over job Volunteers Nitrate dope returns After lapse least five years Sig Manufacturing Com pany again peddling nitrate dope pleased note Free Flighters well August 1983 141 2Jerry SmallMiss Oailas/X4o1179 3PhIl BussellPolecat/X-4o1201 4Gary HeitholdDenight/X-401225 5John JenningsPolecat/X401197 *Fast Time The Best Custom Screen Sportswear See Us NATS will design com memorative T-Shirt club special event Call write details Corsait iesigns just some avaition designs available top quality line sportswear designs direct print eat transferl Gee Bee Warhawks Fokker DVII. P38 Christen Eagle. Pitts Special . Citabria. AT6. p-47. Steerman. Curtis Jenny . Corsair . Coaches ShirtS1295T-ShirnSB95 Ladies TopS950Long Sleeve T$795 Shorts$S95BeaeballSS95 Lined JacketS2195Football$S95 Tote Bag5795Sweetshirt$950 Tire Cover$14S5Hooded SweatSi4SS HatSS95 Wide choice colors sizes Send $100 new Illustrated Brochure Nane Address CityStateZip Design SizeColor now accept MasterCard & Visa _____ TO ORDER Send check money order add 10% postagelhandling MD res 5% tax OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct. Upper Marlboro MD 20772 3011843-3050 FF Duration/Meuser Continued tram page i41 Award 1983 noted individuals have contributed development continuity Free Flight model airplane ac tivities throughout US world Society proud recognize achievements Reginald Denny deceased modeler designs have widely accepted both 1930s 1980s can forget Dennymite engine John Gard scientific designer Wakefield Nordic models has car ried theory aeronautics practical application through designs Don McGovern Editor Flying Models magazine years designer truly unique models designer/draftsman model plans almost anyone else John Pond grandfather OldTimers activity throughout world has pusher Free Flight since 930s George Reich dedicated modeler desire achieve championship status realized fully 1961 won Wakefield Cup USA developed rubber-powered designs have widely mimicked other modelers Lawrence Smithline name remem bered oldster today Larrys articles model construction appeared old Flying Aces Model Airplane News Air Trails yesteryear todays mod elers cut modeling teeth Larrys de signs Model Year Awards Jim Wilson Model Year Chairman National Free Flight Society announces awards 1983 International Classes FlAMatt GewainPacer 14 FiBAtain Landeau FiCAdreas Mecxner Delfsn AMA Power SmallRoman Ramirez Careo LargeHal WoodsSummerwind Doug Gaibreath744 Other Categories Hand-Phil Hainer JrKwik Flip II LaunchedPhil Hainer Sr Glider IndoorStan ChiltonSweet 16 EZ-B UnlimitedBob WhiteUnlimited UnRubberlimited ScaleDon SrullSantos DuMont SpecialEd DotbyFAI Rubber awardees have invited display discuss models NFFS Sym posium held AMA Nationals July Drawings photos stories about models will appear NFFS Sym posium Report will available Nationals mail order further information contact Jim Wilson 1030 Ave nue D Redondo Beach CA 90277 Bob Meuser 4200 Gre gory St Oakland CA 94619 Electric Hurricane/Crowe Continued page 92 wing small wood screws main gear mounted gear blocks aluminum straps screws gear fairing doors 050 ASA plastic Small metal strips soldered gear legs hold gear doors means 2-56 screws through small holes drilled straps gear doors tail wheel held Du Bro wheel collar Study plans steering arm soldered top collar picks up rudder cable steering engine cowl can carved bal sa laid-up fiberglass pulled plastic cowl model made ASA plastic pulled over wooden pattern cockpit canopy made same way isnt really lot effort carving plug have access vacu-form ma chine give try Make exhaust manifolds scrap soft balsa apply sanding sealer finish flat black paint Finishing Since trying keep models weight low chose cover MonoKote tried find flat-finish type mentioned Don Srulls Spitfire article no luck ended up glossy stuff 144 Model Aviation Gee Bee Designed RIC Combat agile little performer can fly rings around airplane youve ever owned youre looking really spirited responsive aircraft thats easier build fly Warbird exactly what need 3 Channel RIC 19 25 36Span Mixer Included $3495 OWBIRD Showbird big gest best has rock steady pattern performance thats amazing because will rolls straight up out sight stock K & B 40 slows down like glider landing 64 inches beautiful flying wing will make look great field Precision kit 2540 engine 7 eel ol rolled plans $5995 See dealer first send check money order Pacific Air 15 Skyline Drive Woodside CA 94062 %%y 1131 NW 45 Slreet Ft Lauderdale FL 33309 1305 491-6 175 ENGINEERING TIlE LANDING SEAR PEOPLE Tired bi laildiag gears kit dust III biggie properly 0 & 0 Eaglneenllg can seIne year probleesl * Custom heBI seeds & syocs guarasleed * Straug & durable ti wilhstasd Ike leogbesl lauding * 0 & 0 Engineering gear will work & beep biggie flag * In stack roploemeellI gear popular models Ryram Pills Christie Eagle CAP 21 Ralsa USA J-3 CUB Air Tech Powece Eugle Nesee Big Stick Cbamp Cltabria & II models Snapper Stieger snapper Too painted flat Pactra Formula U covered fuselage silk gets around compound curves easily weight adds negligible fuse lage given four coats nitrate dope final finish light coat Formula U olive drab followed light coat camouflage flat tan Before painting wiped MonoKote areas acetone remove oil dirt Decals produced Dave Platt Models very close proper size model Control rods used Suliivan Gold-NRod cable type lightweight flexible can easily positioned through fuselage bulkheads cable system moving elevator rudder makes very neat installa tion like attach cable servo arms either Du-Bro Gold berg easy connectors rig con trols setup need loosen screw connector move cable fore aft get desired result Flying Did get everything lined-up properly wing tips have cor rect amount washout Are control attachment points secure Are wheels tight Dont laugh Ive seen new ship leave wheel roll ing down runway lifted off cause pre-flight check overlooked takes small item destroy three four months work Check balance point should fall between 25% 30% wing chord Dont fly ship tail-heavy rearward balance point courting snap-roll disaster sure CC correct point model tested 13-in-dia 8-in-pitch prop did very well once trimmed out Later tried 12-8 13-incher seemed put out much thrust 530 sq wing area model handles 4-lb total weight ease During test flights motor battery closely watched bit concerned might heat up too much seems stay very cooL believe Hurricane would really perform new Cobalt motors Maybe Ill try later now Im having ball straight Astro 15 gear unit dont think will have regrets build ship took Hurri cane Valley Flyers Contest California stole show youre looking fun Scale project has great looks flyabiity SAFE FLYING IS NO ACCIDENT ************* *** ** WW***W * * * * WANDITTM * *Dealers Invited * * COn yOar warranty * ~J -K *CORD *Wet DryK * Stich AbrasivesK K *A Keen Machine' gives enceptionalK *sanding control encellent finish* * * 8995 Basic OcI 1 flat Wand 1 * ritsK *10895 Builder Special mcI 2 fIat 1 half * ano wand 5 6 grtsK *12995 Delver includes 3 flar 2 halfK * nd wauds buff wanos andK -K * 6 grits * *Addtional Wands Abrasves ava ableK * e local hobby shopK *K *80015 ELMORE Eoe No 1214 288 5780K * P 0 Box 266 uite Texas 75149K K KKKKKKKKKK*K Radio Technique/Myers Continued page 39 tion selectively amplifies signals between 72 73 MHz rest gives us second stage filtering Meanwhile crystal-controlled oscillator LO receiver running fre quency precisely 455 MHz above transmitters frequency oscil lators voltage frequency injected mixer along amplified RE voltages IRE section mixer frequency present mixed other frequency present including local oscillator mixing new fre Continued page 148 August 1983 145 INTRODUCING THE NEW FOX 36 RC Schneurle Ported Ball Bearing Main BRAND NEW 36 RC.evolved highly successful Combat Special took highly successful Fox Combat Special fitted new MarkXtype carburetor made porting head modifications get run idle well no-nitro fuel Result.the powerful 36 RC market new Fox 36 RC combines power superb idling characteristics light weight.and delivers lowest cost fuels 23900 Fox 36 RO$5995 90236 TiltUp Muffler1495 90237 Tilt-Down Muffler1495 F 0 X MANUFACTURING Co 5305 TDWSON AVEFORT SMITH ARK 72901 Hot Line SOif 686-1656 IN STOCK FOR IMMEDIATE SHIPMENT New 30 CID QUADRA$20950 New 22 CID QUADRA$10950 Req 22 QUADRA $10450 Brisighelle Flywheel 012450 Req 22 QUADRA POWER ASSEMBLY ONLY 86450 QUADRA REPAIR 1000 pIes pews Jim Mesner ERCOUPEPLANS 82395 KIT $23995 Jim Messe TOMAHAWKPLANS $2395 KIT $25995 Jinx Messe 9-BALL TRAINER PLANS $1695 KIT $9995 BALSA end BASSWOOD fell siesI 35% OFF Connept FLEET PLANS $2995 KIT $15995 COWL $1995 P6W RADIAL ENGINES tar Fleet $2495 VICKERS LEWIS MACHINE GUN KITS $1495 CECONITE Podunts 10% OFF Siq J3 CUB KIT $12495 PLANS SUPER STEARMAN IGedfreyl $2095 STARDUSTER TOO IBrisighellel J3 CUB NeIit $2995 VOLKSPLANE IChinken Cherliel $2395 COCKPIT KITS Tonehewk F4U-1 Spitfire $2295 Ernoepe $2095 Steernien 82295 Citebrie $2495 J-3 Cob $2195 ME-109 $2295 Fleet $2195 US Ocedre FUEL TANKSlOne $695 32 en $795 FIBERGLASS ARROW SHAFTS 511$ s 32 long 61$1l1110 24-Hour Service. Add $250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 VelleY View Dr Allegeny NY 14706 AU NEW cusro SCNNEURLE cox 009 ENGINES Racing & Stunt versions special hard chrome & honing technology Also Complete inventory individual stock custom parts Cox TD 020 049 051 & 09 engines Competition parts & accessories Combat Free Fit C/L & A/C Racing Speed Stunt & Team Race Exclusive distributor Nelson 15 engIne & parts detailed catalog send 50 cents Kustom Kraftsmanshlp Box 2699 Laguna Hills CA 92653 Telephone 714 830-5162
Edition: Model Aviation - 1983/08
Page Numbers: 56, 57, 141, 144, 145
Free Flight DURA TION Bob Meuser FORTY-NINER Power class revisited May column ran item event credited Scale Staffel club asmuch rules published swiped its publication However appears event originated Orbiteers addition recent rules wee bit different ones presented differences Maximum dimensions 49 49 48 stated Engine stock reed valve direct-drive Cox Tes tors 049 Minimum official flight time 40 sec unlimited attempts make three official flights permitted scoring formula engine run to nearest whole second nearest sec objected its first running event went pretty well winner being T Wilson flying simple almost-all-balsa affair everyone good time have hunch well seeing lot event Glitch department drawing wooden steelyard scale text accompanied May issue error two drawingthe weight slider should exactly pound onnce error reflected text too last sentence next-to-last paragraph item replace half-oz weight one-oz weight half-lb weight one-lb weight Also comment about use aluminum yardstick could get trouble high loads yardstick could become unstable flip over its sideit depends thickness yardstick suggested aluminum avoid changes balance resulting apparently moisture adsorption desorption has problem several Indoor scales have built Dittmer guy designed thing mentions small changes occur 56 Model Aviation 41z9n 7ASZfl aded rodstra 49lzted8e IL______ /2enut p/a zst zi/ater cf par/s arcznd section 6/se nj/k cizrton asform cra/2e sand flush Would believe shows make form molding tail boom Wakefield Bob offers much about technique its inventor column Right Warren Williams enters twin-tractor one-flight-at-dawn Unlimited Mulvihill event US FP Champs planned will first serious attempt win event unorthodox configuration Model built specifically event East Coaster Donald Ross big canards 30-incher flies con sistent two minutes outdoors kinds weather easily compensated small tab masking tape right place purposes changes small enough ignored Bill Bigge suggests improvement ep oxy pieces brass tubing having length bit greater thickness yard stick holes Also suggests poise sliding weight designed simply slide alongthe top beam out pivoting mark some sort poise read against scale Bill makes living doing precision measure ments various sorts has lot other suggestions about making balances little heavy get time Tomy timers again According Jack Pitcher writing newsletter NorWesters FF MAC Portland OR Tomy toy people have done themselves better smaller lighter ver sion timer found Rascal Robot similar wind-up toys reason grown hah persons care about such kidstuff wind-up toys motors make rather good dethermalizer timers new toys called Pencil Pets because powered front section clipped end ordinary household pencil unpowered rear section clipped other end pencil two ver sions Dachshund dog green cater pillar Cost around $3 discount toy marts motor design similar earlier ones everything smaller making somewhat difficult work weight mere 19 grams against 28 grams smaller seems run smoother Pitcher modified pretty much accordance Lindley-Stoy article appeared June 1982 issue Model Aviation simplest modificationsimply removing drive springthe overall thickness /4 comfortable fit HLG No use taking time gorey details However youll send SASE Ill send Xerox copy Pitchers arti cle NFFS stuff NFFS Publications 4858 Moorpark Aye San Jose CA 95129 offers two specials good through August 1 1983 Any three issues NFFS Sympo re ports including World Champs Tech Report $20 six issues $35 Surface postage included prices nonmembers NFFS please include ad ditional $4 order Note following issues available 1968 69 70 75 addition one-year sets back issues Free Flight NFFS Digest offered $18 postpaid regard less NFFS membership Make checks payable NFFS have some changes among watch store have new Membership Subscription Manager Don Hughes Hal Wood Dons ad dress 8383 Zancanaro Ct Citrus Heights CA 95610 already aware arrangement NFFS plans publications supplies changed back January Fred Terzian San Jose address above con tinues handle publications no longer handles plans Plans now handled Manny Andrade has also han dling NFFS Supplies some time Mannys address 1602 Encanto Place Walnut Creek CA 94596 Write Fred Manny complete price lists have lots goodies Bill Warner built 1943 German design enter annual Northrop Flying Wing Contest its curves constantly-changing airfoil section building wasnt easybut coverings turned out real headache Silkspan went eas ily looked great minor crash shat tered covering Iron-on film wouldnt follow concave upper-rear portion airfoil Nylon tried weighed ton Red silk wrinkled nasty places heck wrinkles thats way model ended up Barn-door drag flaps proved too small ineffective dethermalize model reliably minuses Bill still won Excessive modesty prevented him featuring model own column Tailboom form Don Hughes Citrus Heights CA got interested Wakefield rubber-power models few years ago decided tubular fuselage way go Finding suitable form motor tube no sweat visit local hardware store turned up piece 1 A-in steel tubing getting form tail boom proved hassle advised try poo1 cue after agony finding source rummaged through least hundred before found close what wanted fudge adding layers tape get right size taper course have access metal- wood-turning lathe could make proper form unfortunately modelers dont having made commercially would prohibitively ex pensive Later Don came up better solution see sketch Go hardware store buy three-ft length 3/x-in threaded rod handful nuts washers corresponding diameters end form couple stations between used li/s 1 3/4 /2 washers spaced form boom 34 long will have drill out some washers go rod Lock washers place nuts after carefully checking taper along straightedge now have skeleton boom form little trigonometry will sim plify locating washers rod can just well trial error Mix up enough plaster paris fill between two adjacent washers using piece milk carton form Peel off paper soon after plaster begins set Shave down excess plaster using hack saw like spoke shave easier work plaster before has completely dried Sand metallic sandpaper like Drag onskin because wont clog Complete sanding using conventional sandpaper ce August 1983 57 Continued page 141 Would anyone besides Bill Warner build did enter Towline event 1982 Northrop Flying Wing Meetand Won design 19A3 German plan sold Old Timer Models modern addition rudder-mounted speed-brake-type dethermalizer Alas about 25% effective conventional pop-up-stab OT DT panels actuated rubberband-and-cam arrangement timed fuse Photos Bill Phyllis Warner CATCH ONE. IFYOU CAN See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 FF Duration/Meuser Continued page 57 mented straightedge will bridge across two washers sand until form round flush washers Repeat process until have filled blanks After plaster has thoroughly set completely dry apply coat sealer choiceplain dope example now have form strong warpresistant inexpensive $5 have buy materials can afford buy several branch out new designs Too often fear would-be FAt-event modelers get turned off see de signs models seem demand modeler have access full-house ma chine shop Often simple hand tools bit ingenuity dash what heck will get job done just well Juniors Problem needs bashed around some Maybe should broaden term Beginners SUPERMANTIS American R/C REAL MOVER. monkey around anything else can have best Thousands have thrilled excitement Mantis Supermantis provide very latest technology %coupled proven design gets air eeps flying In-house manu facturing & quick delivery American made parts accessories means wont waiting promised overseas shipments process orders promptly eicient. courtesy Supermantis Get Hands Supermantis 00 Mantis 00 Collective Pitch Mod 0 Prices subject change notice Send $4 Main Plan Additional Information American H/C Helicopterslnc 619 7447533 635-11 Norm Twin Oaks Valley Road San Marcos CA92069 aware its advantages over butyrate dope Sig points out following advantages Compatibility epoxy enamel paints plain fabric coverings can nitrate-doped painted eliminating need ex pensive iron-on coverings shrinks moderately compared butyrate better adhesion structures higher solids content fills fewer coats ideal light FF rubber-power models fuel resistance factor fuel resistance factor can provided fuel-proof topcoat Sig also points out butyrate dope can applied over nitrate isnt wise apply nitrate over butyrateunless youre big crackle finishes worse Actually can get trouble using butyrate over nitrate according some horror stories Ive read newsletters So play safe check out something doesnt matter time switch brands sources supply Sig doesnt carry thinner specifically nitrate dope its regular dope thinner retarder job nicely Ive used both acrylic lacquer thinner cheapest available regular lacquer thinner nitrate dope has worked just fine sort thing best tested first before using something important Free Flight Hall Fame Awards National Free Flight Society has announced recipients Free Flight Hall Fame Continued page 144 Problem prefer say crucial talked about least done-anything-about problem time would think over statement industry does see way can ascribe perhaps terminal case congenital myopia have few outstanding noble effortsEd Whittens long-standing ing notable comes mind have tackled problem local level shout loud might merely faint voices wilderness real commitment someone some group put together form long-range planand making certain plan kept track small effort small comparison size problem never theless significant has Beginners Corner Free Flight NFFS Digest edited Frank Gue Frank sensed need such effort several years ago cor rectly guessed merely suggesting such thing would get nowhere volunteered job himself despite almost pro hibitively demanding business schedule now realities life force him give up need someone else take over job Volunteers Nitrate dope returns After lapse least five years Sig Manufacturing Com pany again peddling nitrate dope pleased note Free Flighters well August 1983 141 2Jerry SmallMiss Oailas/X4o1179 3PhIl BussellPolecat/X-4o1201 4Gary HeitholdDenight/X-401225 5John JenningsPolecat/X401197 *Fast Time The Best Custom Screen Sportswear See Us NATS will design com memorative T-Shirt club special event Call write details Corsait iesigns just some avaition designs available top quality line sportswear designs direct print eat transferl Gee Bee Warhawks Fokker DVII. P38 Christen Eagle. Pitts Special . Citabria. AT6. p-47. Steerman. Curtis Jenny . Corsair . Coaches ShirtS1295T-ShirnSB95 Ladies TopS950Long Sleeve T$795 Shorts$S95BeaeballSS95 Lined JacketS2195Football$S95 Tote Bag5795Sweetshirt$950 Tire Cover$14S5Hooded SweatSi4SS HatSS95 Wide choice colors sizes Send $100 new Illustrated Brochure Nane Address CityStateZip Design SizeColor now accept MasterCard & Visa _____ TO ORDER Send check money order add 10% postagelhandling MD res 5% tax OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct. Upper Marlboro MD 20772 3011843-3050 FF Duration/Meuser Continued tram page i41 Award 1983 noted individuals have contributed development continuity Free Flight model airplane ac tivities throughout US world Society proud recognize achievements Reginald Denny deceased modeler designs have widely accepted both 1930s 1980s can forget Dennymite engine John Gard scientific designer Wakefield Nordic models has car ried theory aeronautics practical application through designs Don McGovern Editor Flying Models magazine years designer truly unique models designer/draftsman model plans almost anyone else John Pond grandfather OldTimers activity throughout world has pusher Free Flight since 930s George Reich dedicated modeler desire achieve championship status realized fully 1961 won Wakefield Cup USA developed rubber-powered designs have widely mimicked other modelers Lawrence Smithline name remem bered oldster today Larrys articles model construction appeared old Flying Aces Model Airplane News Air Trails yesteryear todays mod elers cut modeling teeth Larrys de signs Model Year Awards Jim Wilson Model Year Chairman National Free Flight Society announces awards 1983 International Classes FlAMatt GewainPacer 14 FiBAtain Landeau FiCAdreas Mecxner Delfsn AMA Power SmallRoman Ramirez Careo LargeHal WoodsSummerwind Doug Gaibreath744 Other Categories Hand-Phil Hainer JrKwik Flip II LaunchedPhil Hainer Sr Glider IndoorStan ChiltonSweet 16 EZ-B UnlimitedBob WhiteUnlimited UnRubberlimited ScaleDon SrullSantos DuMont SpecialEd DotbyFAI Rubber awardees have invited display discuss models NFFS Sym posium held AMA Nationals July Drawings photos stories about models will appear NFFS Sym posium Report will available Nationals mail order further information contact Jim Wilson 1030 Ave nue D Redondo Beach CA 90277 Bob Meuser 4200 Gre gory St Oakland CA 94619 Electric Hurricane/Crowe Continued page 92 wing small wood screws main gear mounted gear blocks aluminum straps screws gear fairing doors 050 ASA plastic Small metal strips soldered gear legs hold gear doors means 2-56 screws through small holes drilled straps gear doors tail wheel held Du Bro wheel collar Study plans steering arm soldered top collar picks up rudder cable steering engine cowl can carved bal sa laid-up fiberglass pulled plastic cowl model made ASA plastic pulled over wooden pattern cockpit canopy made same way isnt really lot effort carving plug have access vacu-form ma chine give try Make exhaust manifolds scrap soft balsa apply sanding sealer finish flat black paint Finishing Since trying keep models weight low chose cover MonoKote tried find flat-finish type mentioned Don Srulls Spitfire article no luck ended up glossy stuff 144 Model Aviation Gee Bee Designed RIC Combat agile little performer can fly rings around airplane youve ever owned youre looking really spirited responsive aircraft thats easier build fly Warbird exactly what need 3 Channel RIC 19 25 36Span Mixer Included $3495 OWBIRD Showbird big gest best has rock steady pattern performance thats amazing because will rolls straight up out sight stock K & B 40 slows down like glider landing 64 inches beautiful flying wing will make look great field Precision kit 2540 engine 7 eel ol rolled plans $5995 See dealer first send check money order Pacific Air 15 Skyline Drive Woodside CA 94062 %%y 1131 NW 45 Slreet Ft Lauderdale FL 33309 1305 491-6 175 ENGINEERING TIlE LANDING SEAR PEOPLE Tired bi laildiag gears kit dust III biggie properly 0 & 0 Eaglneenllg can seIne year probleesl * Custom heBI seeds & syocs guarasleed * Straug & durable ti wilhstasd Ike leogbesl lauding * 0 & 0 Engineering gear will work & beep biggie flag * In stack roploemeellI gear popular models Ryram Pills Christie Eagle CAP 21 Ralsa USA J-3 CUB Air Tech Powece Eugle Nesee Big Stick Cbamp Cltabria & II models Snapper Stieger snapper Too painted flat Pactra Formula U covered fuselage silk gets around compound curves easily weight adds negligible fuse lage given four coats nitrate dope final finish light coat Formula U olive drab followed light coat camouflage flat tan Before painting wiped MonoKote areas acetone remove oil dirt Decals produced Dave Platt Models very close proper size model Control rods used Suliivan Gold-NRod cable type lightweight flexible can easily positioned through fuselage bulkheads cable system moving elevator rudder makes very neat installa tion like attach cable servo arms either Du-Bro Gold berg easy connectors rig con trols setup need loosen screw connector move cable fore aft get desired result Flying Did get everything lined-up properly wing tips have cor rect amount washout Are control attachment points secure Are wheels tight Dont laugh Ive seen new ship leave wheel roll ing down runway lifted off cause pre-flight check overlooked takes small item destroy three four months work Check balance point should fall between 25% 30% wing chord Dont fly ship tail-heavy rearward balance point courting snap-roll disaster sure CC correct point model tested 13-in-dia 8-in-pitch prop did very well once trimmed out Later tried 12-8 13-incher seemed put out much thrust 530 sq wing area model handles 4-lb total weight ease During test flights motor battery closely watched bit concerned might heat up too much seems stay very cooL believe Hurricane would really perform new Cobalt motors Maybe Ill try later now Im having ball straight Astro 15 gear unit dont think will have regrets build ship took Hurri cane Valley Flyers Contest California stole show youre looking fun Scale project has great looks flyabiity SAFE FLYING IS NO ACCIDENT ************* *** ** WW***W * * * * WANDITTM * *Dealers Invited * * COn yOar warranty * ~J -K *CORD *Wet DryK * Stich AbrasivesK K *A Keen Machine' gives enceptionalK *sanding control encellent finish* * * 8995 Basic OcI 1 flat Wand 1 * ritsK *10895 Builder Special mcI 2 fIat 1 half * ano wand 5 6 grtsK *12995 Delver includes 3 flar 2 halfK * nd wauds buff wanos andK -K * 6 grits * *Addtional Wands Abrasves ava ableK * e local hobby shopK *K *80015 ELMORE Eoe No 1214 288 5780K * P 0 Box 266 uite Texas 75149K K KKKKKKKKKK*K Radio Technique/Myers Continued page 39 tion selectively amplifies signals between 72 73 MHz rest gives us second stage filtering Meanwhile crystal-controlled oscillator LO receiver running fre quency precisely 455 MHz above transmitters frequency oscil lators voltage frequency injected mixer along amplified RE voltages IRE section mixer frequency present mixed other frequency present including local oscillator mixing new fre Continued page 148 August 1983 145 INTRODUCING THE NEW FOX 36 RC Schneurle Ported Ball Bearing Main BRAND NEW 36 RC.evolved highly successful Combat Special took highly successful Fox Combat Special fitted new MarkXtype carburetor made porting head modifications get run idle well no-nitro fuel Result.the powerful 36 RC market new Fox 36 RC combines power superb idling characteristics light weight.and delivers lowest cost fuels 23900 Fox 36 RO$5995 90236 TiltUp Muffler1495 90237 Tilt-Down Muffler1495 F 0 X MANUFACTURING Co 5305 TDWSON AVEFORT SMITH ARK 72901 Hot Line SOif 686-1656 IN STOCK FOR IMMEDIATE SHIPMENT New 30 CID QUADRA$20950 New 22 CID QUADRA$10950 Req 22 QUADRA $10450 Brisighelle Flywheel 012450 Req 22 QUADRA POWER ASSEMBLY ONLY 86450 QUADRA REPAIR 1000 pIes pews Jim Mesner ERCOUPEPLANS 82395 KIT $23995 Jim Messe TOMAHAWKPLANS $2395 KIT $25995 Jinx Messe 9-BALL TRAINER PLANS $1695 KIT $9995 BALSA end BASSWOOD fell siesI 35% OFF Connept FLEET PLANS $2995 KIT $15995 COWL $1995 P6W RADIAL ENGINES tar Fleet $2495 VICKERS LEWIS MACHINE GUN KITS $1495 CECONITE Podunts 10% OFF Siq J3 CUB KIT $12495 PLANS SUPER STEARMAN IGedfreyl $2095 STARDUSTER TOO IBrisighellel J3 CUB NeIit $2995 VOLKSPLANE IChinken Cherliel $2395 COCKPIT KITS Tonehewk F4U-1 Spitfire $2295 Ernoepe $2095 Steernien 82295 Citebrie $2495 J-3 Cob $2195 ME-109 $2295 Fleet $2195 US Ocedre FUEL TANKSlOne $695 32 en $795 FIBERGLASS ARROW SHAFTS 511$ s 32 long 61$1l1110 24-Hour Service. Add $250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 VelleY View Dr Allegeny NY 14706 AU NEW cusro SCNNEURLE cox 009 ENGINES Racing & Stunt versions special hard chrome & honing technology Also Complete inventory individual stock custom parts Cox TD 020 049 051 & 09 engines Competition parts & accessories Combat Free Fit C/L & A/C Racing Speed Stunt & Team Race Exclusive distributor Nelson 15 engIne & parts detailed catalog send 50 cents Kustom Kraftsmanshlp Box 2699 Laguna Hills CA 92653 Telephone 714 830-5162
Edition: Model Aviation - 1983/08
Page Numbers: 56, 57, 141, 144, 145
Free Flight DURA TION Bob Meuser FORTY-NINER Power class revisited May column ran item event credited Scale Staffel club asmuch rules published swiped its publication However appears event originated Orbiteers addition recent rules wee bit different ones presented differences Maximum dimensions 49 49 48 stated Engine stock reed valve direct-drive Cox Tes tors 049 Minimum official flight time 40 sec unlimited attempts make three official flights permitted scoring formula engine run to nearest whole second nearest sec objected its first running event went pretty well winner being T Wilson flying simple almost-all-balsa affair everyone good time have hunch well seeing lot event Glitch department drawing wooden steelyard scale text accompanied May issue error two drawingthe weight slider should exactly pound onnce error reflected text too last sentence next-to-last paragraph item replace half-oz weight one-oz weight half-lb weight one-lb weight Also comment about use aluminum yardstick could get trouble high loads yardstick could become unstable flip over its sideit depends thickness yardstick suggested aluminum avoid changes balance resulting apparently moisture adsorption desorption has problem several Indoor scales have built Dittmer guy designed thing mentions small changes occur 56 Model Aviation 41z9n 7ASZfl aded rodstra 49lzted8e IL______ /2enut p/a zst zi/ater cf par/s arcznd section 6/se nj/k cizrton asform cra/2e sand flush Would believe shows make form molding tail boom Wakefield Bob offers much about technique its inventor column Right Warren Williams enters twin-tractor one-flight-at-dawn Unlimited Mulvihill event US FP Champs planned will first serious attempt win event unorthodox configuration Model built specifically event East Coaster Donald Ross big canards 30-incher flies con sistent two minutes outdoors kinds weather easily compensated small tab masking tape right place purposes changes small enough ignored Bill Bigge suggests improvement ep oxy pieces brass tubing having length bit greater thickness yard stick holes Also suggests poise sliding weight designed simply slide alongthe top beam out pivoting mark some sort poise read against scale Bill makes living doing precision measure ments various sorts has lot other suggestions about making balances little heavy get time Tomy timers again According Jack Pitcher writing newsletter NorWesters FF MAC Portland OR Tomy toy people have done themselves better smaller lighter ver sion timer found Rascal Robot similar wind-up toys reason grown hah persons care about such kidstuff wind-up toys motors make rather good dethermalizer timers new toys called Pencil Pets because powered front section clipped end ordinary household pencil unpowered rear section clipped other end pencil two ver sions Dachshund dog green cater pillar Cost around $3 discount toy marts motor design similar earlier ones everything smaller making somewhat difficult work weight mere 19 grams against 28 grams smaller seems run smoother Pitcher modified pretty much accordance Lindley-Stoy article appeared June 1982 issue Model Aviation simplest modificationsimply removing drive springthe overall thickness /4 comfortable fit HLG No use taking time gorey details However youll send SASE Ill send Xerox copy Pitchers arti cle NFFS stuff NFFS Publications 4858 Moorpark Aye San Jose CA 95129 offers two specials good through August 1 1983 Any three issues NFFS Sympo re ports including World Champs Tech Report $20 six issues $35 Surface postage included prices nonmembers NFFS please include ad ditional $4 order Note following issues available 1968 69 70 75 addition one-year sets back issues Free Flight NFFS Digest offered $18 postpaid regard less NFFS membership Make checks payable NFFS have some changes among watch store have new Membership Subscription Manager Don Hughes Hal Wood Dons ad dress 8383 Zancanaro Ct Citrus Heights CA 95610 already aware arrangement NFFS plans publications supplies changed back January Fred Terzian San Jose address above con tinues handle publications no longer handles plans Plans now handled Manny Andrade has also han dling NFFS Supplies some time Mannys address 1602 Encanto Place Walnut Creek CA 94596 Write Fred Manny complete price lists have lots goodies Bill Warner built 1943 German design enter annual Northrop Flying Wing Contest its curves constantly-changing airfoil section building wasnt easybut coverings turned out real headache Silkspan went eas ily looked great minor crash shat tered covering Iron-on film wouldnt follow concave upper-rear portion airfoil Nylon tried weighed ton Red silk wrinkled nasty places heck wrinkles thats way model ended up Barn-door drag flaps proved too small ineffective dethermalize model reliably minuses Bill still won Excessive modesty prevented him featuring model own column Tailboom form Don Hughes Citrus Heights CA got interested Wakefield rubber-power models few years ago decided tubular fuselage way go Finding suitable form motor tube no sweat visit local hardware store turned up piece 1 A-in steel tubing getting form tail boom proved hassle advised try poo1 cue after agony finding source rummaged through least hundred before found close what wanted fudge adding layers tape get right size taper course have access metal- wood-turning lathe could make proper form unfortunately modelers dont having made commercially would prohibitively ex pensive Later Don came up better solution see sketch Go hardware store buy three-ft length 3/x-in threaded rod handful nuts washers corresponding diameters end form couple stations between used li/s 1 3/4 /2 washers spaced form boom 34 long will have drill out some washers go rod Lock washers place nuts after carefully checking taper along straightedge now have skeleton boom form little trigonometry will sim plify locating washers rod can just well trial error Mix up enough plaster paris fill between two adjacent washers using piece milk carton form Peel off paper soon after plaster begins set Shave down excess plaster using hack saw like spoke shave easier work plaster before has completely dried Sand metallic sandpaper like Drag onskin because wont clog Complete sanding using conventional sandpaper ce August 1983 57 Continued page 141 Would anyone besides Bill Warner build did enter Towline event 1982 Northrop Flying Wing Meetand Won design 19A3 German plan sold Old Timer Models modern addition rudder-mounted speed-brake-type dethermalizer Alas about 25% effective conventional pop-up-stab OT DT panels actuated rubberband-and-cam arrangement timed fuse Photos Bill Phyllis Warner CATCH ONE. IFYOU CAN See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 FF Duration/Meuser Continued page 57 mented straightedge will bridge across two washers sand until form round flush washers Repeat process until have filled blanks After plaster has thoroughly set completely dry apply coat sealer choiceplain dope example now have form strong warpresistant inexpensive $5 have buy materials can afford buy several branch out new designs Too often fear would-be FAt-event modelers get turned off see de signs models seem demand modeler have access full-house ma chine shop Often simple hand tools bit ingenuity dash what heck will get job done just well Juniors Problem needs bashed around some Maybe should broaden term Beginners SUPERMANTIS American R/C REAL MOVER. monkey around anything else can have best Thousands have thrilled excitement Mantis Supermantis provide very latest technology %coupled proven design gets air eeps flying In-house manu facturing & quick delivery American made parts accessories means wont waiting promised overseas shipments process orders promptly eicient. courtesy Supermantis Get Hands Supermantis 00 Mantis 00 Collective Pitch Mod 0 Prices subject change notice Send $4 Main Plan Additional Information American H/C Helicopterslnc 619 7447533 635-11 Norm Twin Oaks Valley Road San Marcos CA92069 aware its advantages over butyrate dope Sig points out following advantages Compatibility epoxy enamel paints plain fabric coverings can nitrate-doped painted eliminating need ex pensive iron-on coverings shrinks moderately compared butyrate better adhesion structures higher solids content fills fewer coats ideal light FF rubber-power models fuel resistance factor fuel resistance factor can provided fuel-proof topcoat Sig also points out butyrate dope can applied over nitrate isnt wise apply nitrate over butyrateunless youre big crackle finishes worse Actually can get trouble using butyrate over nitrate according some horror stories Ive read newsletters So play safe check out something doesnt matter time switch brands sources supply Sig doesnt carry thinner specifically nitrate dope its regular dope thinner retarder job nicely Ive used both acrylic lacquer thinner cheapest available regular lacquer thinner nitrate dope has worked just fine sort thing best tested first before using something important Free Flight Hall Fame Awards National Free Flight Society has announced recipients Free Flight Hall Fame Continued page 144 Problem prefer say crucial talked about least done-anything-about problem time would think over statement industry does see way can ascribe perhaps terminal case congenital myopia have few outstanding noble effortsEd Whittens long-standing ing notable comes mind have tackled problem local level shout loud might merely faint voices wilderness real commitment someone some group put together form long-range planand making certain plan kept track small effort small comparison size problem never theless significant has Beginners Corner Free Flight NFFS Digest edited Frank Gue Frank sensed need such effort several years ago cor rectly guessed merely suggesting such thing would get nowhere volunteered job himself despite almost pro hibitively demanding business schedule now realities life force him give up need someone else take over job Volunteers Nitrate dope returns After lapse least five years Sig Manufacturing Com pany again peddling nitrate dope pleased note Free Flighters well August 1983 141 2Jerry SmallMiss Oailas/X4o1179 3PhIl BussellPolecat/X-4o1201 4Gary HeitholdDenight/X-401225 5John JenningsPolecat/X401197 *Fast Time The Best Custom Screen Sportswear See Us NATS will design com memorative T-Shirt club special event Call write details Corsait iesigns just some avaition designs available top quality line sportswear designs direct print eat transferl Gee Bee Warhawks Fokker DVII. P38 Christen Eagle. Pitts Special . Citabria. AT6. p-47. Steerman. Curtis Jenny . Corsair . Coaches ShirtS1295T-ShirnSB95 Ladies TopS950Long Sleeve T$795 Shorts$S95BeaeballSS95 Lined JacketS2195Football$S95 Tote Bag5795Sweetshirt$950 Tire Cover$14S5Hooded SweatSi4SS HatSS95 Wide choice colors sizes Send $100 new Illustrated Brochure Nane Address CityStateZip Design SizeColor now accept MasterCard & Visa _____ TO ORDER Send check money order add 10% postagelhandling MD res 5% tax OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct. Upper Marlboro MD 20772 3011843-3050 FF Duration/Meuser Continued tram page i41 Award 1983 noted individuals have contributed development continuity Free Flight model airplane ac tivities throughout US world Society proud recognize achievements Reginald Denny deceased modeler designs have widely accepted both 1930s 1980s can forget Dennymite engine John Gard scientific designer Wakefield Nordic models has car ried theory aeronautics practical application through designs Don McGovern Editor Flying Models magazine years designer truly unique models designer/draftsman model plans almost anyone else John Pond grandfather OldTimers activity throughout world has pusher Free Flight since 930s George Reich dedicated modeler desire achieve championship status realized fully 1961 won Wakefield Cup USA developed rubber-powered designs have widely mimicked other modelers Lawrence Smithline name remem bered oldster today Larrys articles model construction appeared old Flying Aces Model Airplane News Air Trails yesteryear todays mod elers cut modeling teeth Larrys de signs Model Year Awards Jim Wilson Model Year Chairman National Free Flight Society announces awards 1983 International Classes FlAMatt GewainPacer 14 FiBAtain Landeau FiCAdreas Mecxner Delfsn AMA Power SmallRoman Ramirez Careo LargeHal WoodsSummerwind Doug Gaibreath744 Other Categories Hand-Phil Hainer JrKwik Flip II LaunchedPhil Hainer Sr Glider IndoorStan ChiltonSweet 16 EZ-B UnlimitedBob WhiteUnlimited UnRubberlimited ScaleDon SrullSantos DuMont SpecialEd DotbyFAI Rubber awardees have invited display discuss models NFFS Sym posium held AMA Nationals July Drawings photos stories about models will appear NFFS Sym posium Report will available Nationals mail order further information contact Jim Wilson 1030 Ave nue D Redondo Beach CA 90277 Bob Meuser 4200 Gre gory St Oakland CA 94619 Electric Hurricane/Crowe Continued page 92 wing small wood screws main gear mounted gear blocks aluminum straps screws gear fairing doors 050 ASA plastic Small metal strips soldered gear legs hold gear doors means 2-56 screws through small holes drilled straps gear doors tail wheel held Du Bro wheel collar Study plans steering arm soldered top collar picks up rudder cable steering engine cowl can carved bal sa laid-up fiberglass pulled plastic cowl model made ASA plastic pulled over wooden pattern cockpit canopy made same way isnt really lot effort carving plug have access vacu-form ma chine give try Make exhaust manifolds scrap soft balsa apply sanding sealer finish flat black paint Finishing Since trying keep models weight low chose cover MonoKote tried find flat-finish type mentioned Don Srulls Spitfire article no luck ended up glossy stuff 144 Model Aviation Gee Bee Designed RIC Combat agile little performer can fly rings around airplane youve ever owned youre looking really spirited responsive aircraft thats easier build fly Warbird exactly what need 3 Channel RIC 19 25 36Span Mixer Included $3495 OWBIRD Showbird big gest best has rock steady pattern performance thats amazing because will rolls straight up out sight stock K & B 40 slows down like glider landing 64 inches beautiful flying wing will make look great field Precision kit 2540 engine 7 eel ol rolled plans $5995 See dealer first send check money order Pacific Air 15 Skyline Drive Woodside CA 94062 %%y 1131 NW 45 Slreet Ft Lauderdale FL 33309 1305 491-6 175 ENGINEERING TIlE LANDING SEAR PEOPLE Tired bi laildiag gears kit dust III biggie properly 0 & 0 Eaglneenllg can seIne year probleesl * Custom heBI seeds & syocs guarasleed * Straug & durable ti wilhstasd Ike leogbesl lauding * 0 & 0 Engineering gear will work & beep biggie flag * In stack roploemeellI gear popular models Ryram Pills Christie Eagle CAP 21 Ralsa USA J-3 CUB Air Tech Powece Eugle Nesee Big Stick Cbamp Cltabria & II models Snapper Stieger snapper Too painted flat Pactra Formula U covered fuselage silk gets around compound curves easily weight adds negligible fuse lage given four coats nitrate dope final finish light coat Formula U olive drab followed light coat camouflage flat tan Before painting wiped MonoKote areas acetone remove oil dirt Decals produced Dave Platt Models very close proper size model Control rods used Suliivan Gold-NRod cable type lightweight flexible can easily positioned through fuselage bulkheads cable system moving elevator rudder makes very neat installa tion like attach cable servo arms either Du-Bro Gold berg easy connectors rig con trols setup need loosen screw connector move cable fore aft get desired result Flying Did get everything lined-up properly wing tips have cor rect amount washout Are control attachment points secure Are wheels tight Dont laugh Ive seen new ship leave wheel roll ing down runway lifted off cause pre-flight check overlooked takes small item destroy three four months work Check balance point should fall between 25% 30% wing chord Dont fly ship tail-heavy rearward balance point courting snap-roll disaster sure CC correct point model tested 13-in-dia 8-in-pitch prop did very well once trimmed out Later tried 12-8 13-incher seemed put out much thrust 530 sq wing area model handles 4-lb total weight ease During test flights motor battery closely watched bit concerned might heat up too much seems stay very cooL believe Hurricane would really perform new Cobalt motors Maybe Ill try later now Im having ball straight Astro 15 gear unit dont think will have regrets build ship took Hurri cane Valley Flyers Contest California stole show youre looking fun Scale project has great looks flyabiity SAFE FLYING IS NO ACCIDENT ************* *** ** WW***W * * * * WANDITTM * *Dealers Invited * * COn yOar warranty * ~J -K *CORD *Wet DryK * Stich AbrasivesK K *A Keen Machine' gives enceptionalK *sanding control encellent finish* * * 8995 Basic OcI 1 flat Wand 1 * ritsK *10895 Builder Special mcI 2 fIat 1 half * ano wand 5 6 grtsK *12995 Delver includes 3 flar 2 halfK * nd wauds buff wanos andK -K * 6 grits * *Addtional Wands Abrasves ava ableK * e local hobby shopK *K *80015 ELMORE Eoe No 1214 288 5780K * P 0 Box 266 uite Texas 75149K K KKKKKKKKKK*K Radio Technique/Myers Continued page 39 tion selectively amplifies signals between 72 73 MHz rest gives us second stage filtering Meanwhile crystal-controlled oscillator LO receiver running fre quency precisely 455 MHz above transmitters frequency oscil lators voltage frequency injected mixer along amplified RE voltages IRE section mixer frequency present mixed other frequency present including local oscillator mixing new fre Continued page 148 August 1983 145 INTRODUCING THE NEW FOX 36 RC Schneurle Ported Ball Bearing Main BRAND NEW 36 RC.evolved highly successful Combat Special took highly successful Fox Combat Special fitted new MarkXtype carburetor made porting head modifications get run idle well no-nitro fuel Result.the powerful 36 RC market new Fox 36 RC combines power superb idling characteristics light weight.and delivers lowest cost fuels 23900 Fox 36 RO$5995 90236 TiltUp Muffler1495 90237 Tilt-Down Muffler1495 F 0 X MANUFACTURING Co 5305 TDWSON AVEFORT SMITH ARK 72901 Hot Line SOif 686-1656 IN STOCK FOR IMMEDIATE SHIPMENT New 30 CID QUADRA$20950 New 22 CID QUADRA$10950 Req 22 QUADRA $10450 Brisighelle Flywheel 012450 Req 22 QUADRA POWER ASSEMBLY ONLY 86450 QUADRA REPAIR 1000 pIes pews Jim Mesner ERCOUPEPLANS 82395 KIT $23995 Jim Messe TOMAHAWKPLANS $2395 KIT $25995 Jinx Messe 9-BALL TRAINER PLANS $1695 KIT $9995 BALSA end BASSWOOD fell siesI 35% OFF Connept FLEET PLANS $2995 KIT $15995 COWL $1995 P6W RADIAL ENGINES tar Fleet $2495 VICKERS LEWIS MACHINE GUN KITS $1495 CECONITE Podunts 10% OFF Siq J3 CUB KIT $12495 PLANS SUPER STEARMAN IGedfreyl $2095 STARDUSTER TOO IBrisighellel J3 CUB NeIit $2995 VOLKSPLANE IChinken Cherliel $2395 COCKPIT KITS Tonehewk F4U-1 Spitfire $2295 Ernoepe $2095 Steernien 82295 Citebrie $2495 J-3 Cob $2195 ME-109 $2295 Fleet $2195 US Ocedre FUEL TANKSlOne $695 32 en $795 FIBERGLASS ARROW SHAFTS 511$ s 32 long 61$1l1110 24-Hour Service. Add $250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 VelleY View Dr Allegeny NY 14706 AU NEW cusro SCNNEURLE cox 009 ENGINES Racing & Stunt versions special hard chrome & honing technology Also Complete inventory individual stock custom parts Cox TD 020 049 051 & 09 engines Competition parts & accessories Combat Free Fit C/L & A/C Racing Speed Stunt & Team Race Exclusive distributor Nelson 15 engIne & parts detailed catalog send 50 cents Kustom Kraftsmanshlp Box 2699 Laguna Hills CA 92653 Telephone 714 830-5162